WO2012004309A2 - Ensemble permettant la connexion sans fil d'un appareil radio - Google Patents

Ensemble permettant la connexion sans fil d'un appareil radio Download PDF

Info

Publication number
WO2012004309A2
WO2012004309A2 PCT/EP2011/061420 EP2011061420W WO2012004309A2 WO 2012004309 A2 WO2012004309 A2 WO 2012004309A2 EP 2011061420 W EP2011061420 W EP 2011061420W WO 2012004309 A2 WO2012004309 A2 WO 2012004309A2
Authority
WO
WIPO (PCT)
Prior art keywords
radio
antennas
antenna
arrangement
coupling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2011/061420
Other languages
German (de)
English (en)
Other versions
WO2012004309A3 (fr
Inventor
Thomas Bartsch
Rainer Holz
Raimo Jacobi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Molex CVS Dabendorf GmbH
Original Assignee
Funkwerk Dabendorf GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Funkwerk Dabendorf GmbH filed Critical Funkwerk Dabendorf GmbH
Publication of WO2012004309A2 publication Critical patent/WO2012004309A2/fr
Publication of WO2012004309A3 publication Critical patent/WO2012004309A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H04B7/0805—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching
    • H04B7/0814—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching based on current reception conditions, e.g. switching to different antenna when signal level is below threshold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
    • H01Q9/285—Planar dipole

Definitions

  • the invention relates to an arrangement for the wireless coupling of a radio device, in particular a mobile telephone, to a high-frequency line.
  • the coupling is used in particular radio signals that are transmitted by radio waves in the mobile radio frequency range, which is approximately between 500 MHz and 3 GHz. This area belongs to the
  • the coupling in particular establishes a line connection to an antenna, which in turn can establish and maintain a radio connection to a mobile radio network.
  • the antenna may be z. B. by one
  • the coupling can also connect to other facilities, such. B. within a motor vehicle to a speakerphone for the mobile phone.
  • the invention further relates to a method for operating a radio, wherein an antenna of the radio is wirelessly coupled via the arrangement to the radio-frequency line.
  • a mobile telephone means a device that can communicate with a remote station via a radio interface while it is being moved.
  • the device does not necessarily have a keyboard and not necessarily for both
  • the mobile phone may be a mobile emergency transmitter that sends an emergency signal to the station at the push of a button.
  • Other radios for which the invention can provide wireless coupling are e.g. B. so-called sticks, which over a wire-bound
  • a computer Interface with a device, such.
  • a computer and having a radio transmitter to thereby connect the device to a radio receiver or a radio network.
  • Such sticks have recently been used in particular for the connection to UMTS (Universal Mobile Telecommunication System) radio networks. Such sticks are also used for connections to other radio networks.
  • UMTS Universal Mobile Telecommunication System
  • WO 2007/1 18694 A1 describes an arrangement for coupling a mobile telephone to devices of a motor vehicle, wherein the mobile telephone is wirelessly connected to a mobile telephone
  • the antenna structure may be connected (for example via a coaxial cable) to an external antenna of the motor vehicle.
  • radio signals that are emitted by the mobile phone can be received by the antenna structure inside the motor vehicle, pass through the connection to the outer antenna of the motor vehicle and emitted by the latter.
  • the antenna structure may be a spiral antenna. Because of the antenna structure has a shape that remains unchanged in a scale change, and for different signal frequencies each structural elements of the antenna structure are present, a broadband coupling is possible, ie it can be transmitted radio waves in a wide frequency range.
  • the antenna structure may be a flat, substantially two-dimensional structure, wherein the mobile telephone antenna is located at a small distance from the antenna structure and thus in the near field of the antenna structure.
  • the arrangement of the present invention may have the aforementioned features except for the spiral antenna structure.
  • Other features described in WO 2007/1 18694 A1 may also be present in the arrangement according to the invention.
  • the radio is wirelessly coupled via the arrangement to a high-frequency line.
  • the radio is placed on a surface under which the antenna structure is located.
  • the radio can then be fixed in position or at least the freedom of movement of the radio relative to the
  • the coupling loss is the attenuation of the signals transmitted due to the wireless coupling understood.
  • the antenna structure is a planar structure, i. H. a structured layer of electrically conductive material, which is applied to the surface of the printed circuit board, overall creates a very flat design, which is nevertheless stable.
  • antenna structures can be produced in a simple manner and at low cost on a printed circuit board.
  • structured layers as a wireless coupling antenna, which on a support, for. B. a printed circuit board are applied with a flat surface.
  • the coupling loss for the transmission of radio waves of a given frequency is dependent on the location where the antenna of the radio is above the plane surface of the radio Carrier is arranged.
  • the planar surface of the support need not be oriented horizontally, for example, if the plane is oriented vertically Surface also referred to as "above the surface", when the radio is located in a horizontal direction next to the carrier.
  • Radio can be positioned as many places or even at all points above the surface of the wearer.
  • the coupling damping should be as independent as possible of the location or at least not vary by orders of magnitude.
  • Another desirable property is a broadband coupling behavior, which is also possible with a low coupling loss over the entire flat surface as possible.
  • Coupling frequency ranges of radios are then possible to couple radios with very different dimensions.
  • radios having small dimensions relative to the surface of the carrier it is then possible to dispose the radio at various positions above the surface and couple it.
  • larger radios can then be arranged relative to the planar surface above this and be coupled effectively with different orientation of the radio. For different orientation z. As in mobile phones, the place where the mobile phone antenna is located above the flat surface of the wearer.
  • solutions are explained which relate in particular to the first task. Furthermore, further solutions are described, which also solve the second problem.
  • the solutions can be implemented independently of each other, ie by means of various configurations of the arrangement.
  • the planar (layered) structures of these solutions can be prepared in particular as known per se in printed circuit boards.
  • the assembly comprises an electrically insulating support having a first planar surface and a second planar surface lying on the opposite side of the support, which is parallel to the first surface,
  • An electrically conductive layer is applied to the first surface, which emits radio waves in operation of the arrangement as a coupling antenna to an antenna of the radio device and / or receives from this and thereby couples the radio,
  • the layer has a first surface having a convex outer edge
  • the first surface is electrically conductively connected to a first contact of a connection for connecting the high-frequency line via a preferably straight connection line, which is part of the layer, the strip line extending from the convex outer edge to an edge region of the support .
  • a second electrically conductive layer is applied to the second surface, the second layer has a second surface that has a convex outer edge,
  • the second surface is applied to a portion of the second surface, wherein seen from the partial area on the opposite side of the carrier, the strip line is applied to the first surface, and
  • the second surface is electrically connected to a second contact of the terminal.
  • the first surface and the second surface therefore each function as a ground surface or reference surface for the other surface.
  • the second surface acts as a ground surface of the stripline.
  • the first and the second contact are connected to separate, mutually insulated conductors of the high-frequency line.
  • the respective other surface forms the reference surface, wherein the reference surface is also structured and in this way no area is formed in which the coupling takes place at significantly increased coupling damping.
  • the stripline does not interfere with the coupling, or not significantly, when the antenna of the radio is positioned over the stripline.
  • the stripline is realized by a rectilinear strip which, taking into account the electrical properties of the carrier material and the dimensions of the carrier material and the stripline, a defined, predetermined impedance of z. B. 50 ⁇ has.
  • the first surface and / or the second surface has a closed peripheral convex outer edge, which is optionally interrupted by at least one narrow recessed strip.
  • the outer edge is closed circumferentially.
  • the circumferential area is a circle, an oval, or an ellipse. Due to the selected shape of the surfaces and the associated reference surfaces a low coupling loss is achieved over at least a wide frequency range. In addition, only slight impedance changes result in the wide frequency range. The arrangement can therefore be referred to as broadband. Thus, resonances with respect to radio waves are achieved in a relatively large frequency range.
  • the inner dimensions of the surface determine the wavelengths and thus the frequencies at which a low-loss coupling is possible.
  • the first surface and / or the second surface is symmetrically shaped in a plan view of the first or second surface of the carrier with respect to an axis of symmetry.
  • the axis of symmetry extends in particular in the direction of the longitudinal axis of the strip line, if this is designed as a straight strip line.
  • the longitudinal axis is understood to mean the axis in the longitudinal direction of the stripline and in the middle of the stripline.
  • the second surface, which is applied to the opposite, second surface of the carrier, thereby has an axis of symmetry which is parallel to the longitudinal axis of the stripline.
  • the symmetry axis could be obtained by shifting the longitudinal axis of the stripline in the vertical direction to the second surface.
  • Such a symmetrical design of the first surface and / or the second surface results in that the antenna of the radio in directions transverse to the
  • Symmetry axis can be moved while essentially the same
  • two strips running parallel to the longitudinal axis are cut out of the electrically conductive material of the surface, the strips preferably extending symmetrically on opposite sides of the longitudinal axis.
  • each of the strips may terminate at one of its ends at a distance from the convex outer edge of the surface and at its other end interrupt the closed peripheral edge of the surface over a length corresponding to the width of the strip. There remains therefore a continuous electrically conductive layer within the area.
  • the width of the recessed strips is so narrow that in the
  • Frequency band or frequency range with the smaller wavelengths (that is, with the larger frequencies) of the strip has no significant effect on the coupling loss.
  • the width of the strip is much smaller than the smaller one
  • the first surface and the second surface are not applied to the opposite sides of the carrier, but on the same side, namely on the first level surface. Both surfaces have a convex outer edge. With their convex outer edges, the surfaces are connected via a balun to the high-frequency line. In this way, the two surfaces form the different poles of a dipole antenna. They are controlled in opposite phase via the Balun.
  • a balun with transformer can be used, which causes an impedance transformation.
  • the balun allows the arrangement of the first and second surfaces on the same surface of the carrier. As a result, the production is simplified. Also, the antenna of the radio at the same distance to the surface of the carrier can be arranged at exactly the same distance optionally over the first surface and the second surface. Extends z. B. a support surface for placing the radio in
  • Radio antenna is disposed either over the first surface or the second surface.
  • balun can each be connected via a short stripline to the convex outer edge of the two surfaces.
  • the above-mentioned longitudinal axis or axis of symmetry extends z. B. in the middle of the carrier surface between two parallel outer edges of the carrier.
  • the first and second surfaces can also be directly connected to the various electrical contacts of a connection for connecting a
  • the arrangement has an electrically insulating carrier which has at least one first planar surface
  • the layer has a first surface which has a convex outer edge and a concave inner edge extending within the convex outer edge such that a region within the concave inner edge is recessed.
  • a concave inner edge is understood to be an inner edge which borders an invagination or an area extending into the surface of electrically conductive material, which region is not formed by electrically conductive material.
  • the convex outer edge and the concave inner edge run at least over part of their
  • the recessed area does not affect the good coupling properties of the antenna structure. This applies in particular if, in a similar manner as described above, the first surface is connected in an electrically conductive manner to the high-frequency line via a straight connecting line which is part of the layer, the strip line extending from the convex outer edge to a first line
  • the edge region of the carrier extends when the electrically insulating carrier has a second planar surface lying opposite to the carrier, which runs parallel to the first surface, and when a second surface is applied to a partial region of the second surface as the ground surface of the first layer. wherein, seen from the partial area on the opposite side of the carrier, the strip line is applied to the first surface.
  • This ground surface can z.
  • recessed is meant that this region does not comprise an electrically conductive material of the layer, but the ground surface may also be a surface that has no convex outer edge, eg, instead, in a plan view of the second surface of the carrier. considered, has a straight edge which extends perpendicular to the profile of the straight connecting line, which is applied to the first surface.
  • the recessed area can be used to arrange a strip-shaped second antenna structure for coupling the radio waves in a second area different from the frequency area of the first area.
  • the strip-shaped second antenna structure is preferably connected to the high-frequency line via the same connection as the first surface.
  • Connection point of the first surface at a point of an axis of symmetry of the convex Au orandes lie. This does not only apply to the solution and design described here, but also for other embodiments in which the first surface has a convex outer edge.
  • the recessed area is used to provide coupling in a second wavelength range or frequency range.
  • Antenna structure is particularly well suited to radio waves with longer wavelengths, d. H. to transmit or receive smaller frequencies than is the case with the first surface with the convex outer edge.
  • the reason for this is that the length of the strip is decisive for the wavelength to be transmitted or received, even if the course of the strip is not rectilinear.
  • the recessed area is used when the strip-shaped second antenna structure is configured labyrinth-shaped or meander-shaped.
  • the second antenna structure may not only be in the recessed area inside the concave inner edge, but also outside
  • the strip-shaped second antenna structure Extend area over the flat surface of the carrier.
  • the strip-shaped second antenna structure it is possible for the strip-shaped second antenna structure to have a longitudinal section which extends from the recessed area of the first area into a region of the first surface of the carrier which lies outside the convex outer edge of the first area.
  • the surface of the first surface over which coupling with an antenna of a radio is possible with good coupling quality is increased.
  • the width of the first antenna structure which is formed by the width of the first surface between the outer edge, is smaller than the width of the carrier, the area outside the convex outer edge can be used for the longitudinal portion or for different longitudinal sections of the strip-shaped second antenna structure ,
  • this area outside the convex outer edge can also be used for a second antenna structure if this second antenna structure does not lie within the recessed area
  • the arrangement according to the invention is used, in particular, to arrange radios in the near field of the antenna structure or of the antenna structures.
  • the subject of the invention therefore also includes an arrangement in which the radio is arranged in the near field of the antenna structure, which is formed by the first surface.
  • the scope of the invention includes a method for operating a radio, wherein an antenna of the radio wirelessly via the arrangement according to one of the here described embodiments and embodiments is coupled to the high-frequency line, wherein the wireless coupling radio waves from the high-frequency line to the antenna of the radio and / or vice versa are transmitted.
  • the following arrangement uses at least one of the coupling antennas of the arrangements described above.
  • the arrangement also solves the problem in a large area above the surface of the carrier coupling a
  • Each of the antennas may have one or more antenna structures.
  • the antennas are arranged side by side. Therefore, it is possible that the radio is in different positions and / or
  • the arrangement of the side-by-side antennas may be provided instead of the helical antenna structure described in WO 2007/1 18694 A1.
  • the arrangement with multiple antennas makes it possible to arbitrarily position and / or orient the radio within a limited space for receiving the radio while still providing wireless coupling at low attenuation via at least one of the antennas.
  • An arrangement for the wireless coupling of a radio, in particular a mobile telephone comprising:
  • Radio antenna of the radio are operable, wherein the antennas are arranged in particular such side by side, that the radio within a through the
  • Multiplex switch can be connected to either one of the internal connection lines or to groups of the internal connection lines
  • a detector configured to detect a signal strength of a radio frequency signal transmitted from one of the antennas or from a plurality of the antennas via the multiplex switch to the radio frequency signal terminal,
  • the radio is in one position and each one
  • the surface can therefore also be referred to as a contact surface and is in particular a support surface for placing the radio.
  • the antennas are arranged side by side along the surface.
  • the maximum value of the attenuation in the entire area defined by the arrangement (for example, the area in which the radio is applied to the abutment area) is undershot, whereby it is locally, i. in certain positions / orientations, there are minimum attenuation values.
  • the maximum value preferably corresponds to a sufficiently low attenuation in order to ensure good coupling everywhere in the range.
  • the maximum value depends on the characteristics of the radio antenna of the radio and the antennas of the arrangement and of at least the dimensions of the radio. The dimensions cause a
  • the radio device can be brought into a position and orientation by displacement along the plurality of antennas, in each case in which the radio signal transmission satisfies one of the stated conditions.
  • the multiplex switch is connected in each switch position only with one of the antennas of the arrangement. Even if the attenuation of several of the antennas is equally low, the coupling is sufficient over one of the antennas. Therefore, the alternative in which the switch connects the high-frequency signal port by switching selectively with groups of the internal connection lines can be omitted.
  • the antennas each have electrically conductive strips, which are applied to a plate-shaped carrier made of electrically non-conductive material.
  • the coupling antennas described above are suitable as side-by-side antennas.
  • the individual antennas of the arrangement are configured in the same way, in particular the same shape.
  • the antennas of the arrangement may be oriented differently, as will be described with reference to FIG. 9, for example.
  • the multiplex switch makes it possible to connect the antennas optionally to the high-frequency signal connection to which the external connection cable can be connected.
  • the arrangement comprises a detector, as described above.
  • the detector can be located on the side of the multiplex switch where the high-frequency signal connection is located. It would also be possible, in each case a detector in one of the internal
  • the signals supplied by the detectors in this case may not be without limitation as to the one you supplied
  • the controller be able to account for which switch position the multiplexer is in, i.e., in which switch position the multiplexer switch is located. which of the internal connection lines is switched through to the high-frequency signal connection. With this information, the controller can detect which generated by the detector
  • Detection signal belongs to which switch position.
  • Radio antenna can be achieved.
  • the radio is operated so that it applies a time-invariable signal strength when transmitting radio signals.
  • the test is performed so quickly that the signal strength of the radio signals emitted by the radio does not change significantly. This is based on the finding that the different coupling attenuation for the wireless coupling to the different antennas is very different for a specific position and orientation of the radio.
  • the controller selects the switching state of the multiplex switch where the lowest coupling loss exists, i. for which the detector detected the highest signal strength.
  • the controller controls the multiplex switch accordingly and produces this best switching state. This switching state is then maintained for the operation of the radio at least for a much longer period of time than the test requires. This period can therefore be termed permanent.
  • the detector is e.g. a component that is commercially available. With regard to the structure of such a commercial high-frequency signal detector is on the
  • Fig. 1 shows schematically a side view of a carrier, on the plane
  • electrically conductive planar structures are applied, which are thus each within a layer, wherein above the upper surface of the carrier on a support a radio is arranged so that between an antenna of the radio and the on the surfaces of the carrier applied antenna structures can take place a coupling in the near field of the antennas, wherein antenna signals of the radio antenna of the radio are transmitted via the antenna structures to a high-frequency line and / or vice versa,
  • a plan view of a printed circuit board on top of which a first electrically conductive surface is applied as an antenna structure which is electrically connected via a strip line, wherein on the underside of the circuit board symmetrically to the first surface, a second surface of electrically conductive material is arranged as a second antenna structure wherein the first surface and the second surface mutually form the ground surface of the other surface,
  • a further printed circuit board on the upper side of which an antenna structure with a convex outer edge and a concave inner edge is arranged, so that a strip-shaped electrically conductive region is formed between the inner edge and the outer edge, so that a recessed region is created in the region inside the concave inner edge, and wherein a ground plane is arranged on the underside of the printed circuit board,
  • Antenna structure is provided, which is meandering,
  • a second antenna structure is arranged, which is labyrinth-shaped,
  • FIGS. 4, 5 and 6 wherein in the recessed area extends a strip-shaped second antenna structure which continues into regions outside the convex outer edge, an arrangement similar to that in FIG. 3, the two antenna structures however not via a balun, but asymmetrically directly to a
  • FIG. 1 shows a carrier 1, in particular a conventional, commercially available printed circuit board.
  • Antenna structures are applied as a structured layer on the opposite flat surfaces of the carrier 1, which are located on top and bottom of the carrier material in FIG. 1.
  • the antenna structures above are designated by the reference numeral 3 and the antenna structures below by the reference numeral 5.
  • the support surface 7 is z. B. by not shown parts of a housing of the arrangement and at a fixed distance to the
  • Antenna structure 3 is positioned.
  • the mobile telephone 9 has a radio antenna 8, via which the coupling to the antenna structure 3, 5 is effected.
  • the antenna structures 3, 5 are connected to a high-frequency line 10. In other embodiments, it may be in the below the support 1, d. H. arranged on the lower surface of the electrically conductive layer does not act to a structured layer with a convex outer edge, z. B. a rectangular ground plane. In yet another embodiment, which will be explained with reference to FIG. 3, no electrically conductive layer can be located on the lower surface.
  • Fig. 2 shows a circuit board having an upper planar surface and a lower planar surface, which run parallel to each other.
  • the circuit board 1 1 is shown in Fig. 2 with a view of the upper surface.
  • a first oval surface 13 is applied from electrically conductive material.
  • a stripline 14 extending straight from the convex outer edge of the first face 13 to an edge of the printed circuit board 11 shown in FIG. 2 forms, together with the first face 13, a continuous electrically conductive layer on the upper surface of the printed circuit board 1 1 .
  • a second oval surface 15 is applied to the surface.
  • electrically conductive surfaces on the underside ie in the figures on the back of the respective circuit board lying surfaces
  • the first surface 13 and the second surface 15 are equally shaped and have the same dimensions, but in the plan view shown in Fig. 2, they are arranged symmetrically to a horizontally extending in Fig. 2, not shown symmetry axis. Oval surfaces do not change shape due to reflection.
  • Fig. 2 still shows a peculiarity which is present only in a specific, preferred embodiment, namely recessed strips which are free of conductive material.
  • the strips are designated by reference numerals 17a to 17d. Their position within the oval surface 13, 15 corresponds to the mirror symmetry, ie the Strips 17 terminate respectively at the portions of the convex outer edges of the oval surfaces 13, 15 facing each other. At the outer areas of the convex
  • Au tungsten tr is no strip-shaped recesses, d. H.
  • the strips terminate at a distance from these convex outer edge regions, which lie close to the outer edges of the printed circuit board 11.
  • a connector 16 which is shown at the bottom in Fig. 2 on the guide plate 1 1 and which is attached to the circuit board 1 1, serves the electrical connection of the first surface 13 and the second surface 15 to a not shown in FIG. Management.
  • Connector 16 is z. As a coaxial or a coaxial jack.
  • the stripline 14 is connected to the one conductor of the connector 16 and the second surface 15 is connected to the other conductor of the connector 16, for. B. to the Au tungsleiter in the case of a coaxial connector or a coaxial jack.
  • the arrangement shown in Fig. 2 can be modified in the following manner:
  • the strip-shaped recesses, which are arranged symmetrically to a vertically extending central axis of the printed circuit board, can be omitted. In this case, however, the arrangement loses the property of being able to couple radio waves with low coupling loss even in a region of lower frequencies.
  • the electrically conductive surfaces on the upper and lower surfaces of the circuit board may be shaped differently, e.g. B. circular, elliptical, semi-circular, semi-elliptical.
  • the convex outer edges lie on the sides of the surfaces facing one another in plan view, if the surface is not bounded by a closed circumferential convex outer edge. This is z. B. in the embodiment to be described in more detail in Fig. 3, the case in which, however, further differences from the embodiment of FIG. 2 exist.
  • electrically conductive antenna structures are applied exclusively in one layer on the upper surface of the printed circuit board 21.
  • the first surface 23 and the second surface 25 are in turn symmetrical to one
  • Mirror symmetry axis arranged, which extends in this case in the vertical direction in the middle of the circuit board 21.
  • Vertical means that the axis lies in the image plane and runs from top to bottom in FIG. At the facing convex
  • the surfaces 23, 25, these are each connected via a short stripline 27, 28, which is located in the same electrically conductive layer as the surfaces 23, 25, to a balun 24.
  • the balun 24 is connected via a further strip line 26 of the layer to a high-frequency line, not shown in FIG.
  • On the Rear side of the strip line 26 is opposite an electrically conductive ground surface 22 (hatched in Fig. 3), which is also connected to the balun 24 and connects it to the high-frequency line.
  • the surfaces 23, 25 shown in Fig. 3 have a convex Au trand on, which has a variable radius of curvature. In an alternative embodiment, however, the radius of curvature could be constant, so that it is at the surfaces around
  • the convex outer edges are half an ellipse or parabolic. They could also be the outer edges of half an oval.
  • Fig. 8 shows on a circuit board 81 two antenna structures 83, 85, e.g. as shown in Figure 2 or 3 and are arranged relative to each other. However, instead of a balun 24, the individual structures are directly connected to a high-frequency connection line 89
  • One end of the high-frequency connecting line 89 is shown schematically in the center of the circuit board 81 by two concentric circles.
  • the outer concentric circle symbolizes the shielding of the line 89 and
  • the inner circle symbolizes the actual antenna signal line.
  • the antenna structure 83 shown on the left is a short
  • Strip line 88 connected to the shield of the line 89 and the antenna structure shown on the right 85 is connected via a short strip line 87 to the signal line.
  • One or both strip lines may be contacted by the printed circuit board 81 with the high-frequency connecting line 89.
  • FIGS. 2, 3 and 8 are advantageous for coupling radios, which can be arranged at different positions above the surface of the printed circuit board without significant changes in the invention
  • the printed circuit board 31 shown in FIG. 4 has on its upper planar surface an antenna structure which, similar to the embodiment in FIG. 3, has a convex outer edge 34 at the first surface 23, which in the concrete embodiment is e.g. B.
  • the antenna structure 33 also has a concave inner edge.
  • the outer edge 34 and the inner edge 32 are designed to be interposed between them
  • Antenna structure 33 forms. This applies correspondingly not only for the shape of the outer edge and the inner edge shown concretely in FIG. 4. Rather, the Au ender and the inner edge could also be curved differently, z. B. semicircular or semi-oval.
  • Fig. 4 shows yet another special feature of the shape of the
  • the two edges 32, 34 diverge at the free ends of the strip forming the antenna structure. In other words, the strip widened towards its free ends. These two free ends are furthest away from the ground plane 35 which is on the back, d. H. is applied to the lower planar surface of the printed circuit board 31.
  • This mass surface 35 is opposite to a strip line 36 on the upper surface, which serves the electrical connection of the antenna structure 33.
  • the mass surface 35 has a straight edge on the side opposite to the protrusion formed by the edge 34. In the plan view, the straight edge of the mass surface 35 is spaced from the protrusion of the edges 32, 34.
  • Antenna structure z. Parabolic, elliptical, oval, it is preferred that the
  • Antenna structure is symmetrical to a central axis of the straight stripline 46 and therefore that the stripline 46 contacts the antenna structure at a point from which two equally long electrically conductive and curved strips extend.
  • FIG. 5 shows an antenna structure 33 as in FIG. 4, wherein also in FIG. 4 the structure is electrically connected by a straight strip line 46. Again, located on the opposite surface of the circuit board 41 is a mass surface 45th
  • a second antenna structure 37 is arranged, which is designed meandering. Electrically connected, the second antenna structure 37 is at the point 38 of the first antenna structure 33, where the straight stripline 46 begins. Starting from this connection point 38, the second antenna structure 37 meanders between the two strips of the first antenna structure 33, the length of the individual sections of the second structure 37 extending between the strip of the structure 33 increasing with increasing distance from the connection point 38, because more space is available for these sections. In this way the space provided by the recessed area is used optimally. As already mentioned above, the wavelengths of the radio waves to be coupled depend on the length of the strip. By optimizing the space, therefore, the longest possible strip can be accommodated in the recessed area. In this case, the spacing of the strips of the second structure 37 extending between the strips of the first structure 33 is preferably constant, and is preferably also the width of the strips
  • Fig. 6 shows a variant of the arrangement shown in Fig. 5.
  • the recessed area located within the first structure 33 is provided with a second structure.
  • the second structure 47 has two strips which, starting from the connection point 38 and a fork, extend on both sides of the axis of symmetry which extends in extension of the longitudinal axis of the strip line 46. Both strips are labyrinth-shaped, wherein the sections extending in alternating directions are curved in accordance with the curvature predetermined by the edge of the recessed surface.
  • the distances of the longitudinal sections of the strips running in alternating directions in the vicinity of the connection point 38 are preferably smaller than in the region of the free ends of the strips of the first structure 33.
  • Fig. 7 shows a variant of Fig. 5 and Fig. 6, in which the first antenna structure 33 is configured in the same way and in which this structure via a straight
  • Strip line 66 is electrically connected. The ground plane on the
  • the second structure 57 extends both in the recessed area within the inner edge 32 of the first structure 33 and in the outer areas outside the outer edge 34 of the first structure 33. Again, similar to the embodiment of FIG The second structure 57, starting from the connection point 38 in the recessed area into a fork 39. There begin two strips of the second structure 57, which are symmetrical to the extension of the longitudinal axis of the
  • Strip strip 66 extend on both sides through the recessed area. First follow the Strip the course of the strips of the first structure 33 until they reach the free end of the strips of the first structure 33. In the following course of the strips of the second structure 57, these extend outward in the direction of the area outside of
  • outside edge 34 of the first structure 33 is located.
  • at least one further longitudinal section of the strip can begin there, so that a meandering shape arises in the area outside the outer edges 34.
  • further longitudinal sections can connect in meandering fashion in this outer region.
  • the first structure 33 shown in FIGS. 5 to 7 can be shaped differently, as already mentioned above for the structure 33 in FIG. B. semicircular, semi-oval, semi-elliptical.
  • Fig. 9 shows a circuit board 101 carrying a plurality of antennas 102a to 102e.
  • the antennas 102 are similar. They serve to enable a transmission of radio signals over a larger area. If a radio, z. As a mobile phone, positioned over the board 101, a radio link from the radio to various antennas 102 can be constructed. However, the radio connection to one or two of the antennas 102 becomes better, i. H. with lower signal transmission losses or with a lower coupling attenuation than with the other antennas 102.
  • Each of the antennas 102 is connected to a multiplex switch 104 via a connection line 103a to 103e.
  • the multiplex switch 104 also has a port 104a.
  • each of the leads 103a to 103e may be connected to this terminal 104a.
  • a detector 105 for detecting the signal strength, which is transmitted via the terminal 104a.
  • the detector 105 is connected in the embodiment with an analog / digital converter 107, which converts the detector signal of the detector 105 into a digital signal and a digital data processor 108 supplies. This determines the signal quality based on the received digital signal.
  • the processor 108 receives from the multiplex switch 104 the information about the current switching state of the switch 104, d. H. which connection line 103 is currently connected to the connection 104a.
  • the multiplex switch 104 When a radio starts to operate via a coupling that takes place by means of the antennas 102 on the board 101, the multiplex switch 104 sequentially switches all connections between the terminal 104a and the connection lines 103. For each In this switching state, the detector 105 detects the corresponding signal quality. The processor 108 determines the switching state with the best signal quality and controls the multiplex switch 104 so that it creates and maintains the switching state with the best signal quality determined during the further coupling operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Waveguide Aerials (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Support Of Aerials (AREA)

Abstract

L'invention concerne un ensemble permettant la connexion sans fil d'un appareil radio, notamment d'un téléphone mobile, cet ensemble comprenant • une pluralité d'antennes (102a - 102e) qui peuvent être utilisées au choix pour la connexion sans fil d'une antenne radio de l'appareil radio, les antennes (102a - 102e) étant disposées l'une à côté de l'autre notamment de façon que l'appareil radio, à l'intérieur d'une zone définie par l'ensemble et dans des positions et/ou orientations quelconques relativement à la pluralité d'antennes (102a - 102e), se trouve respectivement dans une position et une orientation dans laquelle une transmission de signal radio entre une des antennes (102a - 102e) ou une pluralité d'antennes voisines (102a - 102e), d'une part, et l'antenne radio de l'appareil radio, d'autre part, soit soumise à un affaiblissement plus faible que entre les autres antennes (102a - 102e) et l'antenne radio de l'appareil radio, • un commutateur multiplex (104) qui comporte un premier raccordement de signal haute fréquence (104a) pour la liaison avec une ligne de raccordement externe et qui est raccordé à une pluralité de lignes de raccordement internes (103a - 103e) de l'ensemble par l'intermédiaire desquelles le commutateur multiplex (104) est relié respectivement à une des antennes (102a - 102e) ou à une pluralité d'antennes voisines (102a - 102e), le raccordement de signal haute fréquence (104a) pouvant être relié au choix à une des lignes de raccordement internes (103a - 103e) ou à des groupes de lignes de raccordement internes, par commutation du commutateur multiplex (104), • un détecteur (105) conçu pour détecter la puissance d'un signal haute fréquence transmis par une des antennes (102a - 102e) ou par plusieurs antennes au raccordement de signal haute fréquence (104a) par l'intermédiaire du commutateur multiplex (104), • une commande qui est reliée au détecteur (105) et qui est conçue pour commuter le commutateur multiplex (104) de sorte que l'antenne (102a - 102e) ou les antennes qui ont la(les) liaison(s) radio la(les) moins affaiblie(s) avec l'appareil radio, à savoir l'antenne (102a - 102e) ou les antennes qui transmettent au commutateur multiplex (104) le signal haute fréquence avec la plus grande puissance de signal, soient durablement connectées au raccordement de signal haute fréquence (104a).
PCT/EP2011/061420 2010-07-07 2011-07-06 Ensemble permettant la connexion sans fil d'un appareil radio Ceased WO2012004309A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010026698A DE102010026698A1 (de) 2010-07-07 2010-07-07 Anordnung zur drahtlosen Ankopplung eines Funkgerätes
DE102010026698.1 2010-07-07

Publications (2)

Publication Number Publication Date
WO2012004309A2 true WO2012004309A2 (fr) 2012-01-12
WO2012004309A3 WO2012004309A3 (fr) 2012-05-31

Family

ID=44628579

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/061420 Ceased WO2012004309A2 (fr) 2010-07-07 2011-07-06 Ensemble permettant la connexion sans fil d'un appareil radio

Country Status (2)

Country Link
DE (1) DE102010026698A1 (fr)
WO (1) WO2012004309A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10804948B2 (en) 2015-04-09 2020-10-13 Continental Advanced Antenna GmbH Compensator
US10847873B2 (en) 2015-04-09 2020-11-24 Continental Advanced Antenna GmbH System for the wireless coupling of a cellular radio end device to an external antenna structure
CN116324473A (zh) * 2020-09-15 2023-06-23 无线电系统公司 使用单个基站单元的基于定位的无线宠物围护系统

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012112266B8 (de) * 2012-12-14 2015-01-15 Bury Sp.Z.O.O. Koppelantennenanordnung und Aufnahmehalter einer Freisprecheinrichtung
DE102013216753A1 (de) 2013-08-23 2015-02-26 Novero Dabendorf Gmbh Vorrichtung und Verfahren zur kombinierten Signalübertragung oder zur kombinierten Signal- und Energieübertragung
DE202015009540U1 (de) 2015-01-27 2018-03-09 Helmut Fliegl Blockierungsvorrichtung für Fahrzeugfederungen
DE202019104183U1 (de) 2019-07-30 2019-08-07 Helmut Fliegl Fahrzeuganhänger mit Traktionserhöhungsvorrichtung

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007118694A1 (fr) 2006-04-12 2007-10-25 Funkwerk Dabendorf Gmbh Dispositif de couplage et de réception d'un téléphone mobile à l'intérieur d'un véhicule automobile

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5319377A (en) * 1992-04-07 1994-06-07 Hughes Aircraft Company Wideband arrayable planar radiator
US5872546A (en) * 1995-09-27 1999-02-16 Ntt Mobile Communications Network Inc. Broadband antenna using a semicircular radiator
US5852421A (en) * 1996-04-02 1998-12-22 Qualcomm Incorporated Dual-band antenna coupler for a portable radiotelephone
US6031492A (en) * 1996-06-10 2000-02-29 Ericsson Inc. Mobile cradle antenna and heat sink enhancement
US7158089B2 (en) * 2004-11-29 2007-01-02 Qualcomm Incorporated Compact antennas for ultra wide band applications
DE102007044294B4 (de) * 2007-09-17 2009-08-20 Beqasirius Ag Halter für ein mobiles Telefon mit einem Antennenarray
US7733286B2 (en) * 2008-05-26 2010-06-08 Southern Taiwan University Wideband printed dipole antenna for wireless applications
DE102010019904A1 (de) * 2010-05-05 2011-11-10 Funkwerk Dabendorf-Gmbh Anordnung zur drahtlosen Ankopplung eines Funkgerätes

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007118694A1 (fr) 2006-04-12 2007-10-25 Funkwerk Dabendorf Gmbh Dispositif de couplage et de réception d'un téléphone mobile à l'intérieur d'un véhicule automobile

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BURKHARD SCHIEK: "Grundlagen der Hochfrequenz-Messtechnik", vol. 1, pages: 25

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10804948B2 (en) 2015-04-09 2020-10-13 Continental Advanced Antenna GmbH Compensator
US10847873B2 (en) 2015-04-09 2020-11-24 Continental Advanced Antenna GmbH System for the wireless coupling of a cellular radio end device to an external antenna structure
CN116324473A (zh) * 2020-09-15 2023-06-23 无线电系统公司 使用单个基站单元的基于定位的无线宠物围护系统

Also Published As

Publication number Publication date
DE102010026698A1 (de) 2012-01-12
WO2012004309A3 (fr) 2012-05-31

Similar Documents

Publication Publication Date Title
EP2596586B1 (fr) Couplage d'un appareil électronique à liaison radio, en particulier d'un téléphone mobile, à des équipements d'un véhicule automobile
DE69118740T2 (de) Mobile Antenne
DE69608779T2 (de) Gedruckte antenne
DE60018011T2 (de) Flachantenne
DE60109608T2 (de) Antenne und funkgerät mit einer derartigen antenne
DE69531655T2 (de) Breitbandige Monopolantenne in uniplanarer gedruckter Schaltungstechnik und Sende- und/oder Empfangsgerät mit einer derartiger Antenne
DE60121470T2 (de) Antennenanordnung
WO2012004309A2 (fr) Ensemble permettant la connexion sans fil d'un appareil radio
DE69623415T2 (de) Doppel-helix antennensystem
DE4318869C2 (de) Funkantennen-Anordnung auf der Fensterscheibe eines Kraftfahrzeugs und Verfahren zur Ermittlung ihrer Beschaltung
EP0837521A2 (fr) Arrangement d'antenne radio et antenne patch sur la glace d'une fenêtre d'automobile
DE10051661A1 (de) Antenne als integrierte HF-Schaltung
DE102008007258A1 (de) Mehrband-Antenne sowie mobiles Kommunikationsendgerät, welches diese aufweist
DE10065510A1 (de) Resonator, Resonatorelement, Resonatorvorrichtung, Filter, Duplexer und Kommunikationsvorrichtung
AT508750B1 (de) Vorrichtung zum übertragen von hochfrequenzsignalen
DE102010019904A1 (de) Anordnung zur drahtlosen Ankopplung eines Funkgerätes
DE102014013926A1 (de) Mehrstruktur-Breitband-Monopolantenne für zwei durch eine Frequenzlücke getrennte Frequenzbänder im Dezimeterwellenbereich für Fahrzeuge
EP3547561A1 (fr) Agencement d'antenne pour la communication bidirectionnelle de véhicules
DE69903340T2 (de) Zellulartelefon mit klappe und scharnier
DE19958119A1 (de) Mobiles Kommunikationsendgerät
DE102005047418B4 (de) Mehrband-Antenneneinrichtung, drahtlose Datenübertragungseinrichtung sowie Radiofrequenz-Chip
WO2009065810A1 (fr) Module antenne radio multibande externe
DE102007057714A1 (de) Antennenanordnung sowie Verfahren
DE102012207954A1 (de) Antennenvorrichtung
DE102016201341B4 (de) Mehrbandantenne mit externem leiter und elektronische einrichtung, die diese enthält

Legal Events

Date Code Title Description
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11733627

Country of ref document: EP

Kind code of ref document: A2