EP0044779A1 - In Streifenleitungstechnik ausgeführte Faltdipole für sehr hohe Frequenzen und damit ausgeführte Antennenanordnung - Google Patents

In Streifenleitungstechnik ausgeführte Faltdipole für sehr hohe Frequenzen und damit ausgeführte Antennenanordnung Download PDF

Info

Publication number
EP0044779A1
EP0044779A1 EP81401135A EP81401135A EP0044779A1 EP 0044779 A1 EP0044779 A1 EP 0044779A1 EP 81401135 A EP81401135 A EP 81401135A EP 81401135 A EP81401135 A EP 81401135A EP 0044779 A1 EP0044779 A1 EP 0044779A1
Authority
EP
European Patent Office
Prior art keywords
plates
plate
doublet
symmetrical
doublets
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.)
Granted
Application number
EP81401135A
Other languages
English (en)
French (fr)
Other versions
EP0044779B1 (de
Inventor
Gérard Dubost
Claude Jacques Vinatier
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.)
Telediffusion de France ets Public de Diffusion
France Telecom R&D SA
Gouvernement de la Republique Francaise
Original Assignee
Telediffusion de France ets Public de Diffusion
Centre National dEtudes des Telecommunications CNET
Gouvernement de la Republique Francaise
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 Telediffusion de France ets Public de Diffusion, Centre National dEtudes des Telecommunications CNET, Gouvernement de la Republique Francaise filed Critical Telediffusion de France ets Public de Diffusion
Publication of EP0044779A1 publication Critical patent/EP0044779A1/de
Application granted granted Critical
Publication of EP0044779B1 publication Critical patent/EP0044779B1/de
Expired legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/061—Two dimensional planar arrays
    • H01Q21/062—Two dimensional planar arrays using dipole aerials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10—Resonant slot antennas
    • 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
    • H01Q9/06—Details
    • H01Q9/065—Microstrip dipole antennas
    • 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
    • H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength

Definitions

  • the present invention relates to doublets folded in plates intended to operate at very high frequencies.
  • the half-plates are rectangular, except possibly in the vicinity of the cut where the corners are cut, and the long continuous plate is also rectangular.
  • the supply line is a strip line, the ground plate of which is first constituted by a plate perpendicular to the long continuous plate, then by the long continuous plate, then by the surface uniting the long plate continues to one of the two half-plates, and finally by this half-plate itself, said strip line being at one end welded or connected to the half-plate which does not serve as a plate of mass, near the cut and, at its other end to a passage "line to band - coaxial line".
  • An object of the present invention is to provide a doublet folded in plates which avoids the drawbacks mentioned above, in particular by avoiding the radiation of the supply line and by reducing the cross component.
  • the wide plates are joined by a symmetrical plate in which are cut out recesses whose edges are relatively distant from the half-plates of the doublet.
  • a doublet folded into plates in which the central conductor of the power supply line passes under a half-plate, then under the cut, then under the second half-plate to end open at a quarter wavelength of the cutoff.
  • a network of doublets in which the doublets are associated in pairs, the central conductors of a pair of doublets being aligned and meeting on the axis of symmetry of the couple by ratio at which the doublets of the couple are symmetrical, at the point known as the center of the couple, the couples being associated in pairs in which the second pair is deduced from the first by translation parallel to said axis of symmetry over a distance equal to the distance between the midpoints of the cuts in the doublets of a pair, the centers of the pairs of the pair being joined by a conductive segment whose middle constitutes the center of the pair, the network being made up of 2 n ⁇ 2 n pairs of couples, the centers of the pairs being arranged in a matrix of equal steps horizontally and vertically, the supply conductors flourishing from the center of the network in successive Maltese crosses.
  • the folded doublet of FIG. 1 comprises a supplied strand formed by two half-plates 1 and 2 separated by a cut 3, a folded strand formed by a long continuous plate 4 and two symmetrical portions 5 and 6 connecting, on the one hand, 1 and 4 respectively and, on the other hand, 2 and 4.
  • each half-plate 1 or 2 is a true rectangular plate whose length is close to half the length of the doublet, but given their radioelectric functions closely related to their length, it seemed more convenient to designate them by the term half-plate which is opposed to the term plate used for the folded strand 4 which occupies the entire length of the doublet.
  • the plate 4 is connected, in its central part, to a ground plate 7, perpendicular to 4 and symmetrical with respect to the axis of symmetry of the dipole, of the central conductor 8 of a triplate line.
  • the central conductor 8 is indicated in FIG. 1, by dashed lines because it passes successively under 7, 4, 5 and 1, each of metal surfaces 7, 4, 5 and 1 serving as ground surfaces on one side of the conductor 8.
  • the line 8 is equidistant from the sides of 1.
  • the doublet in FIG. 1 comprises a second long continuous plate 9 which is symmetrical with the plate 4 with respect to the axis of symmetry 10 of the two half-plates 1 and 2, and two symmetrical portions 11 and 12 connecting respectively, on the one hand, 1 and 9 and, on the other hand, 2 and 9.
  • the portions 11 and 12 are respectively symmetrical with the portions 5 and 6 with respect to the axis 10.
  • the plate 9 is connected, in its central part, to a plate 13, perpendicular to 9 and symmetrical with the plate 7 with respect to the axis 10.
  • the plates 7 and 13 are, in fact, part of the same large plate 14 which surrounds the doublet proper, bean-shaped openings 15 and 16 separating the doublet from the plate 14.
  • the openings 15 and 16 are symmetrical with respect to the axis of symmetry of the doublet perpendicular to the axis of symmetry 10 and also with respect to axis 10.
  • the plate 9, the portions 11 and 12, and the plate 13 cause perfect symmetrization of the folded doublet relative to the axis 10, with the result of a significant reduction of the cross component.
  • the central conductor 8 forms with the plate 7, on the one hand, and a ground plate 17, on the other hand, a three-plate supply line.
  • the metal elements 1, 2, 4, 5, 6, 7, 9, 11, 12, 13 and 14 form one side of a first printed circuit 18 while the central conductor 8 forms the other side of this printed circuit board.
  • the bare face of a second printed circuit 19 is applied, the other face of which is coated uniformly with the metal plate 17.
  • the insulation of the printed circuits 18 and 19 may be the same, or for example polyguide of relative electrical permittivity F- r equal to 2.32.
  • the two circuits can have the same thickness.
  • the continuous metal plate 17 serves both as a ground plate for the triplate supply line and as a reflector for the radiating parts 1 and 2 of the doublet.
  • the recesses 15 and 16 must be large enough to avoid an exaggerated coupling between the radiating doublet and the ground plate 14 of the triplate line.
  • the central conductor 8 is successively extended under one half of the plate 4 (towards the portion 5), then under the portion 5, then under the half-plate 1 and, finally, after passing under the cut 3, under a part of the half-plate 2.
  • each of the different segments constituting the central conductor is always under the axis of symmetry of the plate which covers it.
  • the precise mechanical positioning of the two faces of the printed circuit 18 is obtained using the conventional techniques for manufacturing printed circuits. Note that, as the metal surface 17 is continuous, the positioning of the circuit 19 relative to the circuit 18 is not critical.
  • the distance between the tip 20 of the conductor 8 and the middle of the cutoff 3 is equal to a quarter of a wavelength, that is to say A 14, where ⁇ denotes the length in the insulating medium of the printed circuits 18, 19, with: where C is the speed of electromagnetic waves in a vacuum.
  • the quarter-wave line under the half-plate 2 is open, which brings back a short circuit under the edge of the half-plate 2 adjacent to the cutoff 3. It therefore appears that the quarter-wave line allows '' avoid passing through circuit 18 and soldering.
  • Fig. 4 shows how, from the doublet of FIG. 1, one can create such a network.
  • the part of the network shown in FIG. 4 includes the doublets 21 to 32, identical to the doublet in FIG. 1.
  • the doublet 21 is oriented as in FIG. 1, which means that the central conductor 8 21 is on the left, looking at the figure, of the axis 10 21 .
  • the doublet 22 is oriented symmetrically, that is to say that the central conductor 8 22 is to the right of the axis 10 22 .
  • the half-plates 1 21 and 1 22 are located above the axis passing through 33.
  • the doublets 21 and 22 are symmetrical with respect to a line 33 parallel to the axes 10 of doublets.
  • Conductors 8 21 and 8 22 which are aligned to meet at point 34 and are extended by a conductor 35 which descends below the line of 34.
  • the doublets 23 and 24 are deduced from the doublets 21 and 22 by a translation in the direction of 34 and of magnitude equal to the distance between the centers, ie the midpoints of their cuts, of 21 and 22.
  • the central conductors 8 23 and 8 24 meet at a point 36 d 'where they are extended upwards by 37 under line 34.
  • Conductors 35 and 37 meet at point 38 and are extended to the left by conductor 39.
  • Doublets 29 and 30 are part of a group of four symmetrical doublets of the group of four doublets 21 to 24 with respect to a line 40, parallel to 34.
  • the distance between the centers of doublets 22 and 29 is equal to that which exists between the centers of the doublets 21 and 22.
  • the group comprising the doublets 29 and 30 is supplied by symmetrical central conductors of the conductors supplying 21 to 24.
  • a conductor 41 similar to 39 and which meets 39 at point 42 on the line 40. From there, the central conductor is extended by a descending segment 43.
  • the doublets 25 to 28 are deduced from the doublets 21 to 24 by translation downwards by a distance equal to twice the distance between the centers of two adjacent doublets.
  • Conductors 8 and 8 26 meet at point 44 to which the central conductor segment 45, identical to 35.
  • Conductors 8 27 and 8 28 meet at point 46 to which the central conductor segment 47, identical to 37.
  • the segments 45 and 47 meet at point 48 which leads to the central conductor segment 49, identical to 39.
  • the doublets 31 and 32 are part of a group of four symmetrical doublets of the group of the four doublets 25 to 28 with respect to the line 40.
  • the group is supplied by symmetrical central conductors of the conductors supplying 25 to 28.
  • the central conductor is extended by an ascending segment 52 which meets the descending segment 43 at point 53 to which a central conductor segment 54 ends.
  • the length of the doublet is 8.5 mm, ie substantially equal to ⁇ / 2, where A is the wavelength in the dielectric at the average frequency of the band.
  • A is the wavelength in the dielectric at the average frequency of the band.
  • the width of the half-plates 1 and 2 is 3 mm and the distance from the doublet to the reflector plane 17 of 3.2 mm, ie approximately 0.19 ⁇ .
  • the width of the central conductor 8 is 0.5 mm.
  • the recesses 15 and 16 have a length of the order of 16 mm and a maximum width of the order of 6.5 mm.
  • the width of the cut 3 is equal to 0.35 mm.
  • the intervals between parts 4 and 9 and the half-plates 1 and 2 have a width of 0.5 mm.
  • the width of 4 or 9 is 1 mm, as well as the widths of the parts 5, 6, 11 and 12.
  • the thicknesses of the circuits 18 and 19 are 1.6 mm.
  • the following table gives the radioelectric characteristics measured on such a doublet as a function of the frequency, that is to say the ROS (Stationary Wave Ratio) of the input impedance reported at 50 ohms, the openings ⁇ E and ⁇ H in the planes E and H, the gain G M isotropic linear, the level of cross component N (dB) in the axis of the principal radiation of the doublet.
  • the doublet efficiency calculated from the measured gain and the directivity obtained by integrating the diagrams for seven frequencies has an average value of 91%, ie a loss of 0.4 dB.
  • the centers of the doublets can be placed at 22 mm; the widths of the conductors 35, 37, 45, 47, 39, 41, 49, 50, 43 and 52 can be chosen equal to 1.1 mm and the width of the conductor 54 equal to 2.3 mm.
  • the conductor impedances of 2.3 mm, 1.1 mm and 0.5 mm are 50 ohms, 75 ohms and 102.5 ohms, respectively.

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Waveguide Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
EP81401135A 1980-07-23 1981-07-16 In Streifenleitungstechnik ausgeführte Faltdipole für sehr hohe Frequenzen und damit ausgeführte Antennenanordnung Expired EP0044779B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8016620A FR2487588A1 (fr) 1980-07-23 1980-07-23 Doublets replies en plaques pour tres haute frequence et reseaux de tels doublets
FR8016620 1980-07-23

Publications (2)

Publication Number Publication Date
EP0044779A1 true EP0044779A1 (de) 1982-01-27
EP0044779B1 EP0044779B1 (de) 1985-11-13

Family

ID=9244607

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81401135A Expired EP0044779B1 (de) 1980-07-23 1981-07-16 In Streifenleitungstechnik ausgeführte Faltdipole für sehr hohe Frequenzen und damit ausgeführte Antennenanordnung

Country Status (5)

Country Link
US (1) US4426649A (de)
EP (1) EP0044779B1 (de)
JP (1) JPS5787206A (de)
DE (1) DE3172900D1 (de)
FR (1) FR2487588A1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0085486A1 (de) * 1982-01-15 1983-08-10 The Marconi Company Limited Antennenanordnung
US4847626A (en) * 1987-07-01 1989-07-11 Motorola, Inc. Microstrip balun-antenna
GB2212665A (en) * 1987-11-23 1989-07-26 Gen Electric Co Plc Slot antenna
GB2249924A (en) * 1990-09-07 1992-05-20 Marconi Electronic Devices Moving vehicle transponder
GB2261554A (en) * 1991-11-15 1993-05-19 Northern Telecom Ltd Flat plate antenna.
US5691734A (en) * 1994-06-01 1997-11-25 Alan Dick & Company Limited Dual polarizating antennae
FR2761532A1 (fr) * 1997-03-31 1998-10-02 Samsung Electronics Co Ltd Antenne-reseau a dipoles a microrubans a cavites

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4477813A (en) * 1982-08-11 1984-10-16 Ball Corporation Microstrip antenna system having nonconductively coupled feedline
US4613868A (en) * 1983-02-03 1986-09-23 Ball Corporation Method and apparatus for matched impedance feeding of microstrip-type radio frequency antenna structure
US4590478A (en) * 1983-06-15 1986-05-20 Sanders Associates, Inc. Multiple ridge antenna
US4686536A (en) * 1985-08-15 1987-08-11 Canadian Marconi Company Crossed-drooping dipole antenna
FR2598036B1 (fr) 1986-04-23 1988-08-12 France Etat Antenne plaque a doubles polarisations croisees
JPS63258102A (ja) * 1987-04-15 1988-10-25 Matsushita Electric Works Ltd 平面アンテナ
JPS6365703A (ja) * 1986-09-05 1988-03-24 Matsushita Electric Works Ltd 平面アンテナ
US5005019A (en) * 1986-11-13 1991-04-02 Communications Satellite Corporation Electromagnetically coupled printed-circuit antennas having patches or slots capacitively coupled to feedlines
FR2613876B1 (fr) * 1987-04-10 1989-10-20 Lmt Radio Professionelle Antenne plane a reseau, auto-protegee et transportable
JPH07120893B2 (ja) * 1987-04-15 1995-12-20 松下電工株式会社 平面アンテナ
JPH02104006A (ja) * 1989-06-28 1990-04-17 Matsushita Electric Works Ltd 平面アンテナ
US5187490A (en) * 1989-08-25 1993-02-16 Hitachi Chemical Company, Ltd. Stripline patch antenna with slot plate
US5278569A (en) * 1990-07-25 1994-01-11 Hitachi Chemical Company, Ltd. Plane antenna with high gain and antenna efficiency
FR2669776B1 (fr) * 1990-11-23 1993-01-22 Thomson Csf Antenne hyperfrequence a fente a structure de faible epaisseur.
JPH0594133U (ja) * 1992-05-29 1993-12-21 株式会社ダイフク Ｉｄタグ取付構造
US5539414A (en) * 1993-09-02 1996-07-23 Inmarsat Folded dipole microstrip antenna
JP2545737B2 (ja) * 1994-01-10 1996-10-23 郵政省通信総合研究所長 ガウシアンビーム型アンテナ装置
FR2727250A1 (fr) * 1994-11-22 1996-05-24 Brachat Patrice Antenne large bande monopole en technologie imprimee uniplanaire et dispositif d'emission et/ou de reception incorporant une telle antenne
US5986610A (en) * 1995-10-11 1999-11-16 Miron; Douglas B. Volume-loaded short dipole antenna
WO2001028035A1 (en) * 1999-10-12 2001-04-19 Arc Wireless Solutions, Inc. Compact dual narrow band microstrip antenna
FR2819109A1 (fr) * 2001-01-04 2002-07-05 Cit Alcatel Antenne multi-bandes pour appareils mobiles
US7199755B2 (en) * 2001-04-23 2007-04-03 Fci Compact antenna block for a wireless device
US7830322B1 (en) * 2007-09-24 2010-11-09 Impinj, Inc. RFID reader antenna assembly
KR100960044B1 (ko) * 2008-10-21 2010-05-31 국방과학연구소 전송선로에 3차원 ｄｇｓ를 갖는 공진기
US8106846B2 (en) * 2009-05-01 2012-01-31 Applied Wireless Identifications Group, Inc. Compact circular polarized antenna
US8618998B2 (en) 2009-07-21 2013-12-31 Applied Wireless Identifications Group, Inc. Compact circular polarized antenna with cavity for additional devices
US8860617B1 (en) * 2011-07-08 2014-10-14 Trivec-Avant Corporation Multiband embedded antenna
RU2568328C2 (ru) * 2013-12-10 2015-11-20 Дмитрий Алексеевич Антропов Дублет-антенна
EP3780277B1 (de) * 2018-05-23 2022-10-19 Mitsubishi Electric Corporation Antennenvorrichtung und gruppenantenne

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1068314B (de) * 1956-05-22 1959-11-05 Societe Technique dAppl'ication et de Recherche Electronique S.T.A.R.E.C., Nogent-sur-Marne, Seine (Frankreich) Halbwellenlängenantenne aus einer metallischen Zylinderfläche
US3172111A (en) * 1962-08-30 1965-03-02 Louis D Breetz Multi-polarized single element radiator
FR2050408A1 (de) * 1969-07-01 1971-04-02 Rca Corp
US3813674A (en) * 1972-01-05 1974-05-28 Secr Defence Cavity backed dipole-slot antenna for circular polarization
FR2231128A1 (en) * 1973-05-21 1974-12-20 Dubost Gerard Folded dipole network - is used for wide band directional system capable of handling circular polarisations
FR2311422A1 (fr) * 1975-05-15 1976-12-10 France Etat Doublet replie en plaques
US4097868A (en) * 1976-12-06 1978-06-27 The United States Of America As Represented By The Secretary Of The Army Antenna for combined surveillance and foliage penetration radar
GB2029112A (en) * 1978-06-08 1980-03-12 Murphy A Television aerial

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE527584A (de) 1952-05-08
FR2298200A1 (fr) 1975-01-17 1976-08-13 France Etat Doublet replie epais accordable dans une bande de frequence de deux octaves

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1068314B (de) * 1956-05-22 1959-11-05 Societe Technique dAppl'ication et de Recherche Electronique S.T.A.R.E.C., Nogent-sur-Marne, Seine (Frankreich) Halbwellenlängenantenne aus einer metallischen Zylinderfläche
US3172111A (en) * 1962-08-30 1965-03-02 Louis D Breetz Multi-polarized single element radiator
FR2050408A1 (de) * 1969-07-01 1971-04-02 Rca Corp
US3813674A (en) * 1972-01-05 1974-05-28 Secr Defence Cavity backed dipole-slot antenna for circular polarization
FR2231128A1 (en) * 1973-05-21 1974-12-20 Dubost Gerard Folded dipole network - is used for wide band directional system capable of handling circular polarisations
FR2311422A1 (fr) * 1975-05-15 1976-12-10 France Etat Doublet replie en plaques
US4097868A (en) * 1976-12-06 1978-06-27 The United States Of America As Represented By The Secretary Of The Army Antenna for combined surveillance and foliage penetration radar
GB2029112A (en) * 1978-06-08 1980-03-12 Murphy A Television aerial

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Frequenz, Vol. 31, Novembre 1977, E. HORMANN et al.: "Experimental Analysis and Selection of Airborne Antennas for Aircraft-to-Satellite Communication Systems", pages 336-341 Berlin, DE * figure 3 * *
H. JASIK "Antenna Engineering Handbook", Premiere Edition, 1961 McGraw-Hill Book Company New York, US * page 3-14, lignes 9-11; ligure 3-20; figure 3-22(b) * *
Union des Associations Techniques Internationales et al Societe Francaise des Electroniciens et des Radioelectriciens, Communications Presentee au Collogue International 1'Espace et la Communication, 1971 Paris, FR pages 216-225 * figure &, figure 6 * *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0085486A1 (de) * 1982-01-15 1983-08-10 The Marconi Company Limited Antennenanordnung
US4847626A (en) * 1987-07-01 1989-07-11 Motorola, Inc. Microstrip balun-antenna
GB2212665A (en) * 1987-11-23 1989-07-26 Gen Electric Co Plc Slot antenna
GB2212665B (en) * 1987-11-23 1991-09-04 Gen Electric Co Plc A slot antenna
GB2249924A (en) * 1990-09-07 1992-05-20 Marconi Electronic Devices Moving vehicle transponder
GB2249924B (en) * 1990-09-07 1994-06-15 Marconi Electronic Devices Moving vehicle transponder
GB2261554A (en) * 1991-11-15 1993-05-19 Northern Telecom Ltd Flat plate antenna.
GB2261554B (en) * 1991-11-15 1995-05-24 Northern Telecom Ltd Flat plate antenna
US5691734A (en) * 1994-06-01 1997-11-25 Alan Dick & Company Limited Dual polarizating antennae
FR2761532A1 (fr) * 1997-03-31 1998-10-02 Samsung Electronics Co Ltd Antenne-reseau a dipoles a microrubans a cavites
GB2323970A (en) * 1997-03-31 1998-10-07 Samsung Electronics Co Ltd A cavity-backed microstrip dipole antenna array
GB2323970B (en) * 1997-03-31 2001-12-05 Samsung Electronics Co Ltd A cavity-backed microstrip dipole antenna array

Also Published As

Publication number Publication date
FR2487588B1 (de) 1984-11-02
US4426649A (en) 1984-01-17
JPH0139242B2 (de) 1989-08-18
EP0044779B1 (de) 1985-11-13
DE3172900D1 (en) 1985-12-19
JPS5787206A (en) 1982-05-31
FR2487588A1 (fr) 1982-01-29

Similar Documents

Publication Publication Date Title
EP0044779B1 (de) In Streifenleitungstechnik ausgeführte Faltdipole für sehr hohe Frequenzen und damit ausgeführte Antennenanordnung
EP2510574B1 (de) Mikrowellenübergangsvorrichtung zwischen einer mikrostripleitung und einem rechteckigen wellenleiter
EP0108463B1 (de) Strahlelement für orthogonal polarisierte Signale und flache Antennengruppe mit solchen nebeneinandergestellten Elementen
EP0243289B1 (de) Plattenantenne mit zwei gekreuzten Polarisationen
EP0205212B1 (de) Modulare Mikrowellenantenneneinheiten und Antenne mit solchen Einheiten
EP0089084B1 (de) Flache Höchstfrequenz Antennenstruktur
EP0800210B1 (de) Kompakter Mikrowellenmodul
EP0145597B1 (de) Ebene periodische Antenne
EP0048195B1 (de) Mikrowellenrichtungskoppler zwischen einem rechteckigen Hohlleiter und einer Streifenleitung
FR2772517A1 (fr) Antenne multifrequence realisee selon la technique des microrubans et dispositif incluant cette antenne
EP1172885A1 (de) Kurzgeschlossene Streifenleiterantenne und Zweiband-Übertragungsanordnung damit
EP0082751B1 (de) Mikrowellenstrahler und seine Verwendung für eine Antenne mit elektronischer Abtastung
CA2310125C (fr) Antenne
FR2989842A1 (fr) Ligne de propagation radiofrequence a ondes lentes
FR2645353A1 (fr) Antenne plane
EP3529852B1 (de) Mehrschichtiger wellenleiter mit mindestens einer vorrichtung zum übergang zwischen den schichten dieses mehrschichtigen wellenleiters
EP0477102B1 (de) Richtnetzwerk mit benachbarten Strahlerelementen für Funkübertragungssystem und Einheit mit einem derartigen Richtnetzwerk
EP0484241B1 (de) Antenne in gedruckter Schaltungstechnik für eine zweifach polarisierte Gruppenantenne
EP2432072B1 (de) Breitband-Symmetrieüberträger auf mehrlagigem Schaltkreis für eine Netzantenne
EP0557176B1 (de) Vorrichtung zur Speisung für eine Plattenantenne mit zwei gekreuzten Polarisationen und Gruppenantenne mit einer solchen Vorrichtung
EP0983616B1 (de) Verfahren und vorrichtung zum verbinden zweier millimeterelemente
EP0156684A1 (de) Strahlendes Mirkowellenelement und seine Anwendung in einer elektronisch gesteuerten Antenne
EP0004228A2 (de) Mikrowellenrichtkoppler und Mikrowellenvorrichtung unter Verwendung des Richtkopplers in Verbindung mit integrierten Schaltungen
FR2665578A1 (fr) Structure de ligne de transmission d'ondes electromagnetiques hyperfrequences du type triplaque suspendue et dispositif de multicouplage notamment de plusieurs filtres.
FR2690789A1 (fr) Antenne radar en réseau linéaire ou plan non dispersif alimenté par un guide à lame centrale entre deux plans de masse.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE DE GB SE

17P Request for examination filed

Effective date: 19820722

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE DE GB SE

REF Corresponds to:

Ref document number: 3172900

Country of ref document: DE

Date of ref document: 19851219

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19930609

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19930902

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19940717

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19940731

BERE Be: lapsed

Owner name: ETABLISSEMENT PUBLIC DE DIFFUSION

Effective date: 19940731

Owner name: L' ETAT FRANCAIS REPRESENTE PAR LE SECRETAIRE D'ET

Effective date: 19940731

EUG Se: european patent has lapsed

Ref document number: 81401135.9

Effective date: 19950210

EUG Se: european patent has lapsed

Ref document number: 81401135.9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20000629

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20000705

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20010715

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Effective date: 20010715