EP0605338A1 - Streifenleitungsantenne mit zwei Polarisationen und entsprechende Vorrichtung zum Senden/Empfangen - Google Patents

Streifenleitungsantenne mit zwei Polarisationen und entsprechende Vorrichtung zum Senden/Empfangen Download PDF

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Publication number
EP0605338A1
EP0605338A1 EP93460038A EP93460038A EP0605338A1 EP 0605338 A1 EP0605338 A1 EP 0605338A1 EP 93460038 A EP93460038 A EP 93460038A EP 93460038 A EP93460038 A EP 93460038A EP 0605338 A1 EP0605338 A1 EP 0605338A1
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EP
European Patent Office
Prior art keywords
resonance
hand
slots
axis
slot
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
EP93460038A
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English (en)
French (fr)
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EP0605338B1 (de
Inventor
Jean-Marc Baracco
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.)
Orange SA
Original Assignee
France Telecom SA
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Publication date
Application filed by France Telecom SA filed Critical France Telecom SA
Publication of EP0605338A1 publication Critical patent/EP0605338A1/de
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Anticipated expiration legal-status Critical
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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
    • H01Q9/0414—Substantially flat resonant element parallel to ground plane, e.g. patch antenna in a stacked or folded configuration
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • 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
    • H01Q9/0457—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means electromagnetically coupled to the feed line

Definitions

  • the field of the invention is that of antennas produced in printed technology and working in frequency reuse by diversity of polarization.
  • the invention relates to a double polarized plated antenna, of the type comprising two radiating elements both participating in the generation of two microwave waves with distinct linear polarizations, each radiating element being supplied, through at least two cut slits in a ground plane, by two power supplies each corresponding to one of the two distinct polarizations.
  • This type of antenna is of great interest for the realization of electronically controlled antenna networks.
  • the invention has many applications, such as for example the production of antennas to be carried on a satellite. Indeed, in this case, the frequency reuse makes it possible to significantly limit the spectral congestion of the antennas used.
  • a known solution of a double polarized plated antenna making it possible to obtain a wide passband, consists in supplying a radiating element, through two coupling slots cut out in a ground plane, by two supply lines each corresponding to one of the two polarizations.
  • This antenna therefore comprises two separate transmission channels, each channel being associated with a feed line and a slot.
  • the supply lines are either of the microstrip type or of the triplate type.
  • the radiating element resonates on the one hand along a first resonance axis perpendicular to the axis of the first slot, and on the other hand along a second resonance axis perpendicular to the axis of the second slot.
  • the intersection of the first and second resonance axes is made at a right angle and defines a center of resonance.
  • This known antenna has numerous drawbacks, and in particular a deflection of the beam, a cross polarization and a coupling between the two channels.
  • transverse offset of each slot causes the appearance of transverse currents which generate cross-polarization.
  • the invention particularly aims to overcome these various drawbacks of the state of the art.
  • an objective of the invention is to provide a double polarized plated antenna, of the type comprising at least one radiating element participating in the generation of two microwave waves with distinct polarizations, each radiating element being supplied, through at least two slots cut out in a ground plane, by two feeds each corresponding to one of the two distinct polarizations, this antenna having a large passband.
  • the invention also aims to provide such an antenna which makes it possible to greatly reduce the coupling and the level of cross polarization, and to eliminate the deflection of the beam, while retaining a large bandwidth.
  • the symmetry of the slots with respect to their respective resonance axis also makes it possible to greatly reduce the coupling between the two channels corresponding to the two polarizations, namely on the one hand the first channel comprising the first supply line and the first slot, and secondly the second path comprising the second supply line and the second and third slots. Indeed, this symmetry makes it possible to eliminate two by two the capacitive couplings between the first slit directed along the second resonance axis, and the second and third slits directed along the first resonance axis.
  • the radiating elements both participate in the generation of two distinctly polarized microwave waves, and it is possible to reduce the size of the first slit and increase the frequency decoupling between the two channels.
  • said resonance center is located on a straight line on the one hand perpendicular to the plane or planes containing said radiating element (s) and on the other hand passing through the center of said radiating element (s).
  • the center of resonance is aligned with the center of each of the two radiating elements. Therefore, the beam deflection is eliminated.
  • the length of said first slot is less the length of said second and third slots.
  • the slots do not resonate at the same frequency and the decoupling between the two channels is further improved.
  • said second and third slots are remote from said first slot.
  • This distance of the slots from each other also improves the decoupling between the two channels.
  • said slots are of substantially rectangular shape and said radiating elements are of substantially square shape.
  • the invention also relates to a transmission / reception device comprising at least one antenna according to the invention.
  • This device can include several antennas, in particular in the form of networks.
  • the invention therefore relates to a double polarized plated antenna.
  • Figures 1 and 2 respectively show a top view and a sectional view of a preferred embodiment of an antenna according to the invention.
  • the first supply line 13 cooperates with the first slot 15.
  • the second supply line 14 comprises two arms 14 A , 14 B , each arm of this second supply line cooperating with one of the second and third slot (namely the first arm, referenced 14 A , with the second slot 16 and the second arm, referenced 14 B , with the third slot 17).
  • the second and third slots 16, 17 are of the same length L2 and parallel to each other.
  • the second resonance axis 118 is identical to the axis 117 of the first slot 15, and the first resonance axis 116 is identical to the axis 119 of the second and third slots.
  • the intersection of the first and second resonance axes 116, 118 takes place at a right angle and defines a resonance center 120.
  • the first slot 15 is perpendicular to the second and third slots 16, 17, and is placed equidistant from each of the second and third slots 16, 17.
  • the axis 117 of this first slot 15 passes through the center of each of the second and third slots 16, 17.
  • the slots are rectangular and the length L1 of the first slot 15 is less than the length L2 of each of the second and third slots 16, 17.
  • the first and second radiating elements 11, 12 are of substantially square shape. For each of these two elements, a geometric center is defined (121 and 122 respectively).
  • the center 121 of the first radiating element 11, the center 122 of the second radiating element 12 and the resonance center 120 of the slots 15, 16, 17 are aligned on a straight line 123 perpendicular to the planes containing the first and second radiating elements 11, 12.
  • the first slot 15 is superimposed with the central zone of each of the first and second radiating elements 11, 12.
  • the second and third slots 16, 17 are superimposed with the peripheral zones of the first and second radiating elements 11, 12, these zones being located on either side of the central area and away from it.
  • the first and second supply lines 13, 14 are for example three-plate lines. It can also be microstrip lines.
  • FIG. 3 presents a logic diagram summarizing the operating principle of an antenna according to the invention.
  • Such an antenna includes two transmission channels.
  • the antenna emits two waves 31, 32 of the same frequency but with distinct polarizations, each polarization corresponding to one of the two transmission channels.
  • the two distinct polarizations are linear polarizations.
  • the first transmission path is represented by arrows in solid lines, the second transmission path being represented by dotted arrows.
  • the information of the first transmission channel is provided by the first supply line 33.
  • This first supply line 33 feeds, through the first slot 34, on the one hand the first radiating element 35 and on the other hand the second radiating element 36.
  • These two radiating elements 35, 36 participate in the generation of the first wave 31 having the first polarization.
  • the information of the second transmission channel is supplied by the second supply line 37.
  • This second supply line supplies, through the second and third slots 38, 39, on the one hand the first radiating element 35 and d on the other hand the second radiating element 36.
  • These two radiating elements 35, 36 participate in the generation of the second wave 32 having the second polarization.
  • Figure 4 shows the decoupling variation curve (in dB) between the two transmission channels as a function of frequency (in GHz).
  • This decoupling is less than -35 dB over the entire bandwidth 41 of the two transmission channels, ie between 1.4 GHz and 1.7 GHz approximately.
  • the bandwidth of each transmission channel is defined as the set of wave frequencies for which the Standing Wave Ratio (ROS) is less than 2.
  • This very large decoupling value is due to the topological arrangement of the coupling slots. Indeed, this symmetrical arrangement makes it possible to eliminate two by two the capacitive couplings between the first slot on the one hand, and the second and third slots on the other hand.
  • Figures 5 and 6 each show the variation curve of the standing wave ratio (ROS) as a function of the frequency, respectively for the first and the second transmission channel.
  • ROS standing wave ratio
  • Each of these two curves makes it possible to calculate the passband [f1, f2] of a transmission channel, the passband being equal to the frequency band for which the ROS is less than 2.
  • This passband can also be expressed in percentage, obtained by dividing the width (f2 - f1) of the passband by the center frequency (f3) of this passband.
  • the antenna according to the invention has a large bandwidth on each of the two transmission channels.
  • FIG. 7 shows the co-polarization diagram of the second antenna transmission channel presented in FIGS. 1 and 2, for a frequency equal to 1.43 GHz.
  • This copolarization diagram comprises a plurality of curves represented in a reference frame whose axes correspond substantially to the resonance axes of the slots (axes referenced 116, 118 in FIG. 1).
  • Each curve corresponds to a distinct level of field radiated by the antenna.
  • the different possible levels are represented in the table in FIG. 9 which indicates the correspondence between the curve references and the associated values of radiated field level.
  • the inventors have also shown that the antenna according to the invention makes it possible to avoid depointing also for all the other frequencies of the passband.
  • Elimination of the deflection of the beam is obtained in particular thanks to the alignment of the center of each of the two radiating elements with the center of resonance of the slits.
  • FIG. 8 shows the diagram in cross polarization of the second transmission path of the antenna presented in FIGS. 1 and 2, for a frequency equal to 1.43 GHz.
  • This cross-polarization diagram includes, like the copolarization diagram presented in relation to FIG. 7, a plurality of contour lines.
  • This low level of cross polarization is obtained with the antenna according to the invention, in particular thanks to the transverse symmetry of the slots with respect to their respective resonance axis.
  • the preferred embodiment of an antenna according to the invention comprises two radiating elements.
  • the invention is not limited to this single case but also relates to the case where the antenna only comprises a radiating element.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Waveguide Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
EP19930460038 1992-12-29 1993-12-20 Streifenleitungsantenne mit zwei Polarisationen und entsprechende Vorrichtung zum Senden/Empfangen Expired - Lifetime EP0605338B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9216048A FR2700067B1 (fr) 1992-12-29 1992-12-29 Antenne plaquée à double polarisation et dispositif d'émission/réception correspondant.
FR9216048 1992-12-29

Publications (2)

Publication Number Publication Date
EP0605338A1 true EP0605338A1 (de) 1994-07-06
EP0605338B1 EP0605338B1 (de) 1999-02-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930460038 Expired - Lifetime EP0605338B1 (de) 1992-12-29 1993-12-20 Streifenleitungsantenne mit zwei Polarisationen und entsprechende Vorrichtung zum Senden/Empfangen

Country Status (3)

Country Link
EP (1) EP0605338B1 (de)
DE (1) DE69323612T2 (de)
FR (1) FR2700067B1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0671779A1 (de) * 1994-03-09 1995-09-13 Matsushita Electric Works, Ltd. Ebene Polarisationsdiversitäts-Antenne mit kleinen Abmessungen
WO1998015030A1 (en) * 1996-09-30 1998-04-09 Italtel S.P.A. Microstrip antenna with control of the direction of the axis of maximum radiation
EP0901185A1 (de) * 1997-07-29 1999-03-10 Alcatel Streifenleitungsantenne mit zwei Polarisationen
FR2827430A1 (fr) * 2001-07-11 2003-01-17 France Telecom Antenne a couplage reactif comportant deux elements rayonnants
FR2828014A1 (fr) * 2001-07-27 2003-01-31 D Phy Espace Dev De Produits H Antenne
WO2014070298A1 (en) * 2012-11-01 2014-05-08 Ubiquiti Networks, Inc. Coax coupled slot antenna
EP3582326A1 (de) * 2018-06-15 2019-12-18 Nokia Solutions and Networks Oy Antennenkopplung
GB2583567A (en) * 2019-02-27 2020-11-04 Secr Defence Dual polarised planar antenna, base station and method of manufacture
CN113519090A (zh) * 2019-03-14 2021-10-19 华为技术有限公司 用于天线元件的馈电方法和馈电结构

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10114012B4 (de) * 2000-05-11 2011-02-24 Amtran Technology Co., Ltd., Chung Ho Chipantenne
WO2011103841A2 (zh) * 2011-04-19 2011-09-01 华为技术有限公司 一种微带天线
CN114597644B (zh) * 2022-03-25 2024-03-29 常熟市泓博通讯技术股份有限公司 28GHz毫米波双极化天线及其阵列

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4903033A (en) * 1988-04-01 1990-02-20 Ford Aerospace Corporation Planar dual polarization antenna
FR2666691A2 (fr) * 1990-07-11 1992-03-13 Ct Reg Innovat Transfert Tech Antenne microonde.
EP0481417A1 (de) * 1990-10-18 1992-04-22 Alcatel Espace Vorrichtung zur Speisung eines Strahlungselementes für zwei orthogonale Polarisationen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4903033A (en) * 1988-04-01 1990-02-20 Ford Aerospace Corporation Planar dual polarization antenna
FR2666691A2 (fr) * 1990-07-11 1992-03-13 Ct Reg Innovat Transfert Tech Antenne microonde.
EP0481417A1 (de) * 1990-10-18 1992-04-22 Alcatel Espace Vorrichtung zur Speisung eines Strahlungselementes für zwei orthogonale Polarisationen

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DAS ET POZAR: "Multiport Scattering Analysis of General Multilayered Printed Antennas Fed by Multiple Feed Ports : Part II - Applications", IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol. 40, no. 5, May 1992 (1992-05-01), NEW YORK US, pages 482 - 491, XP000279202, DOI: doi:10.1109/8.142622 *
EDIMO ET AL.: "OPTIMISED FEEDING OF DUAL POLARISED BROADBAND APERTURE-COUPLED PRINTED ANTENNA", ELECTRONICS LETTERS., vol. 28, no. 19, September 1992 (1992-09-01), STEVENAGE GB, pages 1785 - 1787 *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5519406A (en) * 1994-03-09 1996-05-21 Matsushita Electric Works, Ltd. Low profile polarization diversity planar antenna
EP0671779A1 (de) * 1994-03-09 1995-09-13 Matsushita Electric Works, Ltd. Ebene Polarisationsdiversitäts-Antenne mit kleinen Abmessungen
WO1998015030A1 (en) * 1996-09-30 1998-04-09 Italtel S.P.A. Microstrip antenna with control of the direction of the axis of maximum radiation
EP0901185A1 (de) * 1997-07-29 1999-03-10 Alcatel Streifenleitungsantenne mit zwei Polarisationen
US7091907B2 (en) 2001-07-11 2006-08-15 France Telecom Reactive coupling antenna comprising two radiating elements
FR2827430A1 (fr) * 2001-07-11 2003-01-17 France Telecom Antenne a couplage reactif comportant deux elements rayonnants
WO2003007423A1 (fr) * 2001-07-11 2003-01-23 France Telecom Antenne a couplage reactif comportant deux elements rayonnants
FR2828014A1 (fr) * 2001-07-27 2003-01-31 D Phy Espace Dev De Produits H Antenne
WO2003012921A1 (fr) * 2001-07-27 2003-02-13 D.Phy Espace Antenne
WO2014070298A1 (en) * 2012-11-01 2014-05-08 Ubiquiti Networks, Inc. Coax coupled slot antenna
EP3582326A1 (de) * 2018-06-15 2019-12-18 Nokia Solutions and Networks Oy Antennenkopplung
GB2583567A (en) * 2019-02-27 2020-11-04 Secr Defence Dual polarised planar antenna, base station and method of manufacture
CN113519090A (zh) * 2019-03-14 2021-10-19 华为技术有限公司 用于天线元件的馈电方法和馈电结构

Also Published As

Publication number Publication date
DE69323612T2 (de) 1999-10-21
FR2700067B1 (fr) 1995-03-17
FR2700067A1 (fr) 1994-07-01
EP0605338B1 (de) 1999-02-24
DE69323612D1 (de) 1999-04-01

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