EP0924797B1 - Multifrequenzstreifenleitungsantenne und Gerät mit einer derartigen Antenne - Google Patents

Multifrequenzstreifenleitungsantenne und Gerät mit einer derartigen Antenne Download PDF

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Publication number
EP0924797B1
EP0924797B1 EP98403063A EP98403063A EP0924797B1 EP 0924797 B1 EP0924797 B1 EP 0924797B1 EP 98403063 A EP98403063 A EP 98403063A EP 98403063 A EP98403063 A EP 98403063A EP 0924797 B1 EP0924797 B1 EP 0924797B1
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EP
European Patent Office
Prior art keywords
antenna
patch
constituting
zone
zones
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.)
Expired - Lifetime
Application number
EP98403063A
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English (en)
French (fr)
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EP0924797A1 (de
Inventor
Christophe Grangeat
Charles Ngounou
Jean-Philippe Coupez
Francois Lepennec
Serge Toutain
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Alcatel Lucent SAS
Nokia Inc
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Alcatel SA
Nokia Inc
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Publication of EP0924797A1 publication Critical patent/EP0924797A1/de
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    • 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
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0421—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H01Q5/364—Creating multiple current paths
    • H01Q5/371—Branching current paths
    • 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
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • 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
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/045—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means

Definitions

  • the present invention relates to the antennas produced according to the microstrip technique.
  • Such an antenna includes a patch which is typically formed by etching a metal layer. She is called in English by specialists "microstrip patch antenna” for “antenna to microstrip type tablet ".
  • the presentation will be sometimes limited below for the purpose of simplification to the sole case of an antenna transmitter connected to a transmitter. But it must be understood that the provisions described could also apply in the case of receiving antennas connected to a receiver. For the same purpose it will be accepted that the substrate has the form of a horizontal sheet.
  • a first type can be called "Half-wave”.
  • the antenna is then called "half-wave” or "electric”.
  • This length is substantially equal to half of the wavelength of an electromagnetic wave propagating in this direction in the line formed by the mass, the substrate and the patch.
  • the coupling with the radiated waves is done at the ends of this length, these extremities being located in regions where the amplitude of the electric field prevailing in the substrate is maximum.
  • a second type of resonant structure that can be produced according to this same technique can be called “quarter wave”.
  • the antenna is then called “quarter wave” or “magnetic". It differs from a half-wave antenna by part by the fact that its pellet has a length substantially equal to a quarter of the wavelength, this length of the patch and this wavelength being defined as above, on the other hand by the fact that a significant short circuit is made at one end of this length between the mass and the patch of so as to impose a resonance of the quarter wave type including a node of electric field is fixed by this short circuit. Coupling with waves radiated is done at the other end of this length, this other end being located in the region where the amplitude of the electric field across the substrate is maximum.
  • the coupling of such an antenna to a signal processing device as a transmitter is typically done not only through a coupling device included in this antenna, but also a line of external connection to this antenna and connecting the coupling device to the signal processor. If we consider a functional chain global including the signal processing unit, the connection line, the coupling device and the resonant structure, the coupling and the connection line are made so that this chain has a uniform impedance over its entire length, which avoids parasitic reflections opposing good coupling.
  • the respective functions of the coupling device, the connection line and the antenna are as follows:
  • the function of the connection line is to carry a radio frequency or microwave signal from the transmitter to the antenna terminals. Throughout such a line the signal is propagates in the form of a traveling wave without undergoing, at least in principle, significant modification of its characteristics.
  • the function of coupling device is to transform the signal supplied by the line of connection so that this signal excites a resonance of the antenna, this is to say that the energy of the traveling wave carrying this signal is transferred to a standing wave settling in the antenna with defined characteristics by the latter.
  • the antenna it transfers the energy of this wave stationary at a wave radiated in space.
  • the signal provided by the transmitter thus undergoes a first transformation to pass from the shape of a wave progressive to that of a standing wave, then a second transformation which gives it the shape of a radiated wave.
  • a first transformation to pass from the shape of a wave progressive to that of a standing wave
  • a second transformation which gives it the shape of a radiated wave.
  • an antenna receiving the signal takes the same forms in the same organs but the transformations are done in reverse order and direction.
  • connection lines can be made according to a technique other than planar, for example in the form of coaxial lines.
  • Antennas produced using planar techniques are included in various types of devices. These devices include portable radiotelephones, base stations for the latter, automobiles and airplanes or air missiles.
  • portable radio the continuous nature of the lower mass layer of this antenna makes it possible to easily limit the radiation power intercepted by the body of the user of the device.
  • the antenna can be shaped to this profile so as not to cause additional aerodynamic drag embarrassing.
  • the area in the middle of the candlestick has a field node electric fixed by a series of short circuits to the ground plane, this series short circuits being arranged along the axis of symmetry of this zone.
  • the conductive areas are separated from each other by slots of relatively large width (0.7 cm for a wavelength of 3.3 cm), this which makes it possible to produce an antenna of smaller size than that of the antennas known, for a given wavelength.
  • this antenna cannot not operate properly on multiple frequencies, for example in a multiband radiotelephone.
  • a first known antenna is described in the document of US-A-4,766,440 (Gegan).
  • the patch 10 of this antenna has a U-shaped curved slot which is continuous and entirely internal to this pellet.
  • This slit is radiative and shows a mode of resonance additional antenna. It also allows, by a suitable choice of its shape and its dimensions, to bring the frequencies of the modes of resonance with desired values which gives the possibility of associating two linear cross-polarized modes for emitting a polarized wave circular.
  • the supply line ends with a coupling device which is a line produced using the microstrip technique as specified above but which is also said to be coplanar, this because the microstrip extends in the plane of the patch and enters between two notches of the latter.
  • This device is provided with transformation means impedance to adapt it to the different input impedances respectively presented by the line at the different resonance frequencies used as operating frequencies.
  • a third known antenna is described in the document of US-A-4,771,291 (LO et al). Its patch has slots extending along respective line segments inside the patch. These slots reduce the difference between the two operating frequencies. Occasional short circuits also reduce this difference. They are formed by conductors passing through the substrate.
  • FIG. 1 represents a perspective view of a device for communication including a first antenna produced according to this invention.
  • Figure 2 shows a top view of the antenna of the figure 1.
  • FIG. 3 represents a front view of this same antenna.
  • Figure 4 shows a diagram of the variation of a reflection coefficient in decibels at the input of this same antenna in function of the frequency expressed in MHz.
  • Figure 5 shows a top view of a second antenna made according to this invention.
  • the antenna further includes a coupling device having more particularly the shape of a coupling line.
  • This device includes on the one hand, a main conductor made up of two sections C1 and C3 and connected to the patch 6 at an internal connection point 18. It comprises on the other hand an equally composite ground conductor which cooperates with this main conductor and which will be described later. It constitutes all or part of a connection assembly which connects the resonant structure of the antenna to a signal processor 8, for example to drive one or more resonances of the antenna from this body in the case where it is a transmitting antenna.
  • the connection set typically includes a connecting line such as C4, C5, which is external to the antenna and which comprises two conductors.
  • this line On the antenna side, these two conductors are connected respectively with two connecting conductors which belong to the coupling and which can be considered as constituting two terminals of the antenna. At the other end of this line, the two conductors of this last are connected respectively to two terminals of the processing unit signal.
  • This line can in particular be of the coaxial type, of the type to microstrip or coplanar type. In case the antenna considered constitutes a receiving antenna, this same assembly transmits the received signals through this antenna to the signal processor. The various elements of this together have the respective functions previously defined.
  • the signal processor is able to operate at those resonant frequencies which constitute said frequencies of antenna operation. It can be composite and then include a element permanently tuned into each of these frequencies of operation. It can also include a tunable element.
  • the present invention also relates to a device for communication including an antenna according to this invention and a said organ for signal processing connected to this antenna by a so-called set of connection.
  • the antenna given in example is a dual-frequency antenna, it is to say that it must be able to give rise to at least two resonances so to operate in two modes corresponding to two frequencies of operation.
  • a slot is formed in the patch 6 and leads forward outside the latter. It constitutes a slit longitudinal divider F1.
  • the longitudinal extent occupied by this slot defines in this patch a region before Z2, Z1, Z12, the slot itself separating in this region a primary zone Z1 from a secondary zone Z2.
  • a rear region ZA extends between this front region and the rear edge 10. De preferably this rear region is shorter and preferably still much shorter in the longitudinal direction DL than this region before.
  • the internal connection point 18 is outside the area secondary and it is preferably located in the primary zone Z1.
  • a said mode then constitutes a primary mode in which a wave stationary is established thanks to a propagation of progressive waves in the two directions of this longitudinal direction or of a direction close to this last, these waves propagating in an area including this primary zone and this rear region, substantially excluding the secondary zone Z2.
  • Another operating mode constitutes a secondary mode in which a wave stationary is established thanks to a propagation of progressive waves in the same two directions, these waves propagating in another area including the primary and secondary areas and the rear region.
  • the rear region ZA has a first function which is to couple the secondary zone to the primary zone to allow the establishment of the secondary mode. She has a second function which is to allow the short circuit present on the rear edge of play its role in each of these two areas.
  • the antenna is then, at least approximately, for each operating frequency, of the quarter type wave.
  • the configurations of the pad and the coupling device and more particularly the longitudinal position of the internal connection point 18 are chosen so as to show a desired value predetermined impedance presented by the antenna for the signal processing or more typically for a connection line connecting this body to this device.
  • This impedance will be called below antenna impedance.
  • input impedance In the case of a transmitting antenna it is usually called input impedance.
  • desired value is advantageously equal to the impedance of the connection line. It is why, preferably, the position of the connection point gives the antenna impedance substantially the same value for the various operating frequencies.
  • the operating frequencies have predetermined desired values. These values can be advantageously obtained by a suitable choice of dimensions respective longitudinal zones primary Z1 and secondary Z2. It is why, in the context of the present invention, these two dimensions are typically different. As a result, the front edge of the patch deviates then necessarily of a transverse straight line.
  • the configuration of the pad 6 preferably further forms a slot extending in the direction transverse DT.
  • This slot constitutes a transverse separating slot F2 partially separating this primary zone from the rear region ZA. Of preferably it connects to the rear end of the separating slot longitudinal F1.
  • the configuration of the patch 6 advantageously still forms at least one slot F3 extending in the primary zone Z1 in the direction longitudinal DL.
  • this slot extends forward from the transverse separating slot F2. It can be called a lowering slot. frequency because its role is to lower the operating frequencies in an increasing measure with its length. It not only allows limit the length of the pad necessary to obtain desired values operating frequencies, but also to adjust these frequencies thanks to a suitable adjustment of the length of this slot.
  • the antenna has a plane of symmetry extending in the longitudinal DL and vertical DV directions, the trace of this plane in the upper surface of the substrate constituting an axis of symmetry A for the pellet 6.
  • the number included in the reference signs of the one that is right in the figures is equal to the corresponding number of that of left increased by 10.
  • the coupling device and the primary zone Z1 extend in the vicinity of axis A and the configuration of the patch forms two said longitudinal separating slots F1, F11 on either side of this zone primary.
  • the secondary zone then comprises two parts Z2, Z12 located respectively beyond these two slots.
  • all of the separating slots F1, F2, F11, F12 has the shape of a U.
  • the branches and the base of this U are longitudinal and transverse respectively.
  • This base has an interval axial 20 extending on either side of the axis to connect the primary zone Z1 to short circuit C2, C12 via an axial part of the region rear ZA.
  • the coupling line which constitutes the antenna coupling device comprises a conductor belonging to the upper conductive layer. More precisely a section C1 of said main conductor enters in the longitudinal direction DL into the area of the patch 6. It extends between a rear end close to the edge rear 10 and a front end constituting the internal connection point 18.
  • This section of main conductor is in the form of a ribbon and can be called horizontal coupling tape.
  • this ribbon is laterally limited by two notches. But, in the antenna of this invention, these two notches are sufficiently narrow in the direction DT and long enough in DL direction to be able to be respectively considered as two longitudinal slots F4 and F14. These two slots separate this ribbon from the patch 6 and will be called hereinafter slots coupling.
  • this coupling tape constitutes the main conductor can advantageously be determined by conceiving this line as a line coplanar able to excite the antenna in a lengthwise manner of this line rather than as a microstrip type line intended for excite the antenna only at the end of this line, the ground conductor of this coplanar line then being mainly constituted in the manner of a coplanar line by the parts of the patch located laterally on the side and other of this ribbon beyond the two slots F4 and F14 and not by the mass of the antenna as in a microstrip line.
  • This line will be called below horizontal coplanar line.
  • the antenna would allow the antenna to be coupled via a signal electromagnetic applied or collected by the external connection line to the rear end of this horizontal coplanar line between two terminals common to this horizontal coplanar line and to the antenna, these two terminals being respectively constituted by this ground conductor of this line and the back end of this ribbon.
  • the connection between the coupling and this external line through such conductors located in the pellet plan would complicate the manufacture of these devices.
  • the horizontal coplanar line in question extends along the axis A. It passes in the axial interval 20 of the base of the U, this interval being delimited by the two coupling slots F4 and F14.
  • the position of the front end 18 of its conductor principal is determined to give a desired value to the impedance of the antenna. But this impedance also depends on other parameters such as the widths of C1 coupling tape and coupling slots, as well as nature of the substrate.
  • said short circuit is a composite short-circuit comprising two short-circuit conductors C2 and C12. These two conductors extend in the vertical direction DV leaving between them a free interval. Each of them connects the ground 4 of the antenna to tablet 6.
  • connection conductors are formed on the wafer surface S3 facilitates substantially the realization of a connection between on the one hand the device coupling belonging to the antenna formed on the surface of the device and other hand, a connection line connecting this device to a processing unit signal. If this organ is located inside this device, this line can take the form of a coaxial line which, in the vicinity of the antenna, is perpendicular to the plane thereof. In other cases this provision of connection conductors facilitate the connection of the antenna to conductors carried by a motherboard on one side of which the substrate of the antenna has been previously fixed, the connection line then being typically, at least in the vicinity of the antenna, parallel to the direction longitudinal of it.
  • connection conductors of connection capable of forming antenna terminals on the wafer surface substrate only complicates antenna fabrication in one way negligible.
  • realization of short-circuit conductors is necessary for the manufactured antenna to be of the quarter wave type. Else apart the first connection conductor can be realized by a process at least analogous to that of making the short-circuit conductors and, in most cases, during the same manufacturing step.
  • connection conductors occupy only a fraction of the rear edge 10.
  • the antenna given as an example it is essentially the same fraction as that of the primary zone Z1.
  • the widths of the coupling tapes and slots such that the coupling slots located on either side of these ribbons are chosen so as to give a uniform and suitable impedance, which is typically 50 ohms, to the coupling line formed by the lines vertical and horizontal coplanar.
  • the impedance of the antenna is also adjusted by the choice of the position of the internal connection point 18.
  • the line of external connection to the antenna is a coaxial line. It includes a axial conductor C4. At one end of the line this axial conductor is connected to conductor C3. At the other end of the line it is connected to a first terminal of the signal processing member 8. Over the length of the line is surrounded by a conductive sheath C5. At the first end of the line this sheath is connected to both the two short-circuit conductors C2 and C12. At the other end of the line it is connected to the other terminal of the signal processing member 8 which is constituted for example by a transmitter 8.
  • the second antenna given as an example of implementation of the present invention is shown in Figure 5 and is generally analogous to the first antenna previously described.
  • an element of this second antenna has the same functions as an element of this first antenna, it is designated by the same letters and / or reference numbers, except that the numbers formed by these numbers are increased by one hundred, the area primary Z101 of this second antenna being for example analogous to the primary zone Z1 of the first antenna.
  • This second antenna differs from the first antenna on the following points:
  • the patch 106 then further comprises two mutually symmetrical tertiary areas.
  • a first shaped F101 slot de U partially separates the primary zone Z101 from the two secondary zones Z102 and Z112. It is included in a second F105 slot similarly shape similarly separating the secondary zones from the tertiary zones Z103 and Z113.
  • the short circuit is constituted by a single conductor C102 extending over the entire width of the patch 106 and the coupling between the primary, secondary and tertiary areas is carried out in the rear region ZA thanks to the axial interval 120.
  • the antenna is coupled from of a vertical coaxial line.
  • a section ended! of the axial conductor C104 of this line crosses the substrate 102 and is welded to the pad 106 in the primary zone Z101. It thus constitutes the antenna coupling device.
  • the conductive sheath C105 of this line is soldered to ground not shown of the antenna, this mass consisting of a continuous conductive layer not shown covering the lower surface of the substrate 102.
  • the part of this coaxial line extending below the antenna constitutes the line of connection thereof.
  • the number of frequencies of operation of an antenna produced according to the present invention can be greater than three, the patch of such an antenna then comprising, for example, in the case of four frequencies, a primary zone, two secondary zones, two tertiary zones and two quaternary zones.
  • the configuration of the pad and of the short circuit do not are not necessarily symmetrical.

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  • Waveguide Aerials (AREA)
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  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Aerials With Secondary Devices (AREA)
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Claims (10)

  1. Multifrequenzstreifenleitungsantenne, wobei diese Antenne Folgendes aufweist:
    ein ebenes dielektrisches Substrat (2), das zwei einander gegenüberliegende Hauptflächen aufweist, die sich in den in dieser Antenne definierten Richtungen erstrecken und horizontale Richtungen (DL und DT) bilden, wobei diese beiden Hauptflächen jeweils eine untere Fläche (S1) und eine obere Fläche (S2) bilden;
    einen Leiter (4), der eine Masseebene auf der unteren Fläche (1) dieses Substrats bildet;
    mehrere leitende Bereiche (Z2, Z1, Z12; Z103, Z102, Z101, Z112, Z113), die sich auf der oberen Fläche (2) des Substrats erstrecken und von denen jeder eine längliche Form hat, was der Antenne die Form eines mehrarmigen Leuchters mit einer Basis verleiht (C2, C12, C102);
    eine Antennenkopplungsvorrichtung (C1, C3; C104, C105), die allen leitenden Bereichen gemeinsam ist;
       und dadurch gekennzeichnet, dass diese leitenden Bereiche (Z2, Z1, Z12; Z103, Z102, Z101, Z112, Z113) voneinander durch Spalte (F4, F14) mit einer Breite getrennt sind, die sehr deutlich geringer ist als die Nutzungswellenlängen der Antenne;
       dass die leitenden Bereiche gegenseitig in ausreichendem Maße entkoppelt sind, um die Möglichkeit zu schaffen, dass sich verschiedene Resonanzen in jeweils verschiedenen Flächen aufbauen, die von diesen Bereichen gebildet werden, wobei diese Resonanzen zumindest ungefähr dem Viertelwellentyp entsprechen;
       und dass jeder dieser Bereiche einen Knoten des elektrischen Feldes besitzt, der von mindestens einem Kurzschluss (C2, C12; C102) in Richtung der Masseebene (4) festgelegt ist, und dass dieser mindestens einen Kurzschluss an der unteren Kante der genannten Basis (C2, C12; C102) des "Leuchters" liegt.
  2. Antenne nach Anspruch 1, wobei diese Antenne Folgendes aufweist:
    eine weitere Richtung ist zusätzlich in dieser Antenne definiert und bildet einen Winkel zu jeder dieser horizontalen Richtungen, wobei diese weitere Richtung eine vertikale Richtung (DV) bildet;
    eine leitende untere Schicht, die sich auf dieser unteren Fläche erstreckt und die Masseebene (4) dieser Antenne bildet;
    eine leitende obere Schicht, die sich auf einer Teilfläche der genannten oberen Fläche oberhalb der genannten Masse in der Weise erstreckt, das sie eine Anschlussfläche ("Patch") (6) bildet, wobei dieser Patch eine Konfiguration, eine Länge und eine Breite hat; diese Länge und diese Breite erstrecken sich in zwei genannte horizontale Richtungen, die eine Längsrichtung (DL) bzw. eine Querrichtung (DT) bilden, wobei diese Konfiguration mindestens einen Spalt (F1) im Innern dieses Patchs bildet; dieser Patch trägt hierbei dazu bei, für diese Antenne eine Gruppe von Resonanzen zu definieren, einschließlich mehrerer Resonanzen, die jeweils mehreren Betriebsmodi und mehreren Betriebsfrequenzen dieser Antenne entsprechen; und
    die Antennenkopplungsvorrichtung, die ihrerseits Folgendes aufweist:
    einen Hauptleiter (C1), der an das genannte Patch in einem Anschlusspunkt (18) angeschlossen ist; und
    einen Masseleiter (6), und zwar in der Weise, dass die genannte Antenne über diese Vorrichtung für jede der genannten Betriebsfrequenzen mit einem Signalverarbeitungsorgan (8) gekoppelt werden kann;
       hierbei ist die genannte Antenne durch den Umstand gekennzeichnet, dass der genannte Kurzschluss (C2) den Patch (6) an einer Kannte dieses Patchs mit der Masse (4) elektrisch leitend verbindet, wobei diese Kante in der genannten Querrichtung (DT) verläuft und einen hinteren Rand (10) bildet, der in diesem Patch entlang der genannten Längsrichtung (DL) eine Richtung nach hinten (DB) definiert, die zu dieser hinteren Kante zeigt, und eine Richtung nach vorn (DF), die dieser nach hinten zeigenden Richtung entgegengesetzt ist, wobei zwei Bereiche dieses Patchs jeweils einen hinteren Bereich (ZA) bilden, der an diese hintere Kante angrenzt, und einen vorderen Bereich (Z1, Z2, Z12) vor diesem hinteren Bereich, und wobei ein genannter Spalt nach vorn außerhalb dieses Patchs in der Weise mündet, dass er einen in Längsrichtung verlaufenden Trennspalt (F1) bildet, der diesen vorderen Bereich in zwei genannte Bereiche trennt, die einen Primärbereich (Z1) bzw. einen Sekundärbereich (Z2) bilden, wobei der Anschlusspunkt (18) außerhalb dieses Sekundärbereichs liegt.
  3. Antenne nach Anspruch 2, wobei diese Antenne durch den Umstand gekennzeichnet ist, dass der genannte hintere Bereich (ZA) in der genannten Längsrichtung (DL) kürzer ist als der genannte vordere Bereich (Z1, Z2, Z12).
  4. Antenne nach Anspruch 3, wobei diese Antenne durch den Umstand gekennzeichnet ist, dass der genannte Anschlusspunkt (18) in dem genannten Primärbereich (Z1) liegt, wobei ein Funktionsmodus einen Primärmodus bildet, bei dem sich eine stehende Welle dank einer Ausbreitung von fortschreitenden Wellen nach beiden Seiten einer Richtung ausbreitet, die dieser Längsrichtung zumindest benachbart ist, und wobei sich diese Wellen auf der genannten Fläche ausbreiten, die diesen Primärbereich und den genannten hinteren Bereich einschließt, während der genannte Sekundärbereich (Z2, Z12) in etwa ausgeschlossen wird; hierbei bildet ein anderer Betriebsmodus einen Sekundärmodus, bei dem sich eine stehende Welle dank einer Ausbreitung fortschreitender Wellen nach denselben beiden Seiten [der Richtung] aufbaut, wobei sich diese Wellen auf einer anderen genannten Fläche ausbreiten, welche diesen Primär- und Sekundärbereich und diesen hinteren Bereich einschließt.
  5. Antenne nach Anspruch 2, wobei diese Antenne durch den Umstand gekennzeichnet ist, dass die Position des genannten Anschlusspunktes (18) einer Impedanz dieser Antenne für die verschiedenen genannten Betriebsfrequenzen etwa denselben Wert verleiht.
  6. Antenne nach Anspruch 2, wobei diese Antenne durch den Umstand gekennzeichnet ist, dass der genannte Primärbereich (Z1) und der Sekundärbereich (Z2) jeweils unterschiedliche Abmessungen in der genannten Längsrichtung (DL) haben.
  7. Antenne nach Anspruch 4, wobei diese Antenne durch den Umstand gekennzeichnet ist, dass der genannte Kurzschluss nur von einem Segment der genannten hinteren Kante (10) gebildet wird, wobei die Position dieses Segments in der Breite des genannten Patchs (6) näher an jener des genannten Primärbereichs (Z1) liegt als an jeder des genannten Sekundärbereichs (Z2), wobei dieses Segment ein Kurzschlusssegment (C2, C12) bildet; die genannte Konfiguration dieses Patchs bildet hierbei außerdem einen Spalt, der in der genannten Querrichtung verläuft und einen Quertrennspalt (F2) bildet, der diesen Primärbereich teilweise von dem hinteren Bereich (Z3) trennt.
  8. Antenne nach Anspruch 2, wobei diese Antenne durch den Umstand gekennzeichnet ist, dass die genannte Konfiguration des Patchs (6) außerdem mindestens einen Spalt (F3) bildet, der in dem genannten Primärbereich (Z1) in Längsrichtung (DL) verläuft.
  9. Antenne nach einem beliebigen der Ansprüche 2 bis 8, wobei diese Antenne durch den Umstand gekennzeichnet ist, dass sie eine Symmetrieebene aufweist, die entlang der genannten Längsrichtung (DL) und Querrichtung (DV) verläuft, wobei die Linie dieser Ebene in der genannten oberen Fläche des Substrats eine Symmetrieachse (A) für den Patch (6) bildet und wobei sich die genannte Kopplungsvorrichtung und der Primärbereich (Z1) neben dieser Achse erstrecken; hierbei bildet die genannte Konfiguration des Patchs zwei Längstrennspalte (F1, F11) zu beiden Seiten dieses Primärbereichs, wobei der Sekundärbereich zwei Teile (Z2, Z12) aufweist, die jeweils jenseits dieser beiden Spalte liegen.
  10. Funkkommunikationsgerät, welches eine Antenne nach einem beliebigen der Ansprüche 2 bis 9 und ein genanntes Signalverarbeitungsorgan (8) enthält, das an diese Antenne angeschlossen und für den Betrieb bei den genannten Betriebsfrequenzen angepasst ist.
EP98403063A 1997-12-11 1998-12-07 Multifrequenzstreifenleitungsantenne und Gerät mit einer derartigen Antenne Expired - Lifetime EP0924797B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9715693A FR2772517B1 (fr) 1997-12-11 1997-12-11 Antenne multifrequence realisee selon la technique des microrubans et dispositif incluant cette antenne
FR9715693 1997-12-11

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EP0924797B1 true EP0924797B1 (de) 2004-02-25

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EP (1) EP0924797B1 (de)
JP (1) JPH11317615A (de)
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AT (1) ATE260514T1 (de)
AU (1) AU9697798A (de)
CA (1) CA2254266A1 (de)
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US6133879A (en) 2000-10-17
AU9697798A (en) 1999-07-01
CA2254266A1 (fr) 1999-06-11
DE69821884D1 (de) 2004-04-01
JPH11317615A (ja) 1999-11-16
FR2772517A1 (fr) 1999-06-18
TW402824B (en) 2000-08-21
CN1151586C (zh) 2004-05-26
ES2215285T3 (es) 2004-10-01
CN1230037A (zh) 1999-09-29
SG76579A1 (en) 2000-11-21
ATE260514T1 (de) 2004-03-15
EP0924797A1 (de) 1999-06-23
FR2772517B1 (fr) 2000-01-07
DE69821884T2 (de) 2005-01-05

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