EP0042612A1 - Dispositif de changement de la polarisation d'ondes électromagnétiques - Google Patents

Dispositif de changement de la polarisation d'ondes électromagnétiques Download PDF

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Publication number
EP0042612A1
EP0042612A1 EP81104793A EP81104793A EP0042612A1 EP 0042612 A1 EP0042612 A1 EP 0042612A1 EP 81104793 A EP81104793 A EP 81104793A EP 81104793 A EP81104793 A EP 81104793A EP 0042612 A1 EP0042612 A1 EP 0042612A1
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EP
European Patent Office
Prior art keywords
meandering
structures
another
lines
phase
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
EP81104793A
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German (de)
English (en)
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EP0042612B1 (fr
Inventor
Erich Dipl.-Ing. Kandler
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Siemens AG
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Siemens AG
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Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0042612A1 publication Critical patent/EP0042612A1/fr
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Publication of EP0042612B1 publication Critical patent/EP0042612B1/fr
Expired legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/24—Polarising devices; Polarisation filters 
    • H01Q15/242—Polarisation converters
    • H01Q15/244—Polarisation converters converting a linear polarised wave into a circular polarised wave
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
    • H01Q1/425—Housings not intimately mechanically associated with radiating elements, e.g. radome comprising a metallic grid

Definitions

  • the invention relates to a device for converting electromagnetic waves with a given polarization into those with circular polarization using a plurality of grating structures which are arranged in layers in front of a radiation aperture and which consist of conductors which are in the form of periodic meandering lines which are essentially parallel with respect to their main direction of expansion are trained.
  • radar antennas are generally designed for linear polarization, since the greatest range can be achieved under normal conditions.
  • a linearly polarized antenna however, rain cloud echo signals which have a spectral distribution similar to that of destination echo signals cannot be distinguished from "real" destination echo signals.
  • the rain cloud echo signals are strongly attenuated.
  • this problem is usually solved in such a way that the linear polarization of the antenna is converted into a circular polarization by a polarization grating which is integrated in the radome attached in front of the radiation temperature.
  • the object of the invention is to design a device for converting electromagnetic waves with a given polarization into those with circular polarization of the type mentioned in such a way that the ellipticity of the generated circular polarization over the entire bandwidth is considerably reduced compared to the known circular polarization grids.
  • this object is achieved in that at least one of the lattice structures is designed in such a way that its meandering lines are not all in phase with respect to their geometric shape, but rather neighboring lines have a phase shift with respect to one another.
  • the middle lattice structure is one whose neighboring meandering lines always have a phase shift, and the two outer lattice structures are those whose meandering lines are all in phase with one another.
  • the middle lattice structure can be designed as such, the meandering lines of which are all in phase with one another, while the two outer lattice structures are those whose neighboring meandering lines always have a phase shift.
  • the individual lattice structures are advantageously arranged spatially with respect to one another in such a way that the axes which run essentially parallel to one another the meander lines of two adjacent lattice structures are offset from one another when viewed from above. This measure increases the bandwidth of the circular polarization grating, in particular at the upper frequency limit.
  • the meandering conductors of a lattice structure are advantageously implemented as etched metal strips on a plastic film. For spacing are doing is of insulating material between the sheets - adds that such.
  • B. can be in the form of a honeycomb structure, but also, for example, P may be made of insulating material as a real o lymethacrylimid rigid foam.
  • the circular polarization grating according to the invention can be used as an aperture cover of an antenna or can be integrated into such a cover (radome). Such an integration into the reflector cover can advantageously be realized in particular in the case of a target follower radar antenna with a reflector mirror.
  • FIG. 1 shows a perspective view of a section of a three-layer circular polarization grating according to the invention.
  • This grid consists of three carrier layers 1, 2 and 3, which are realized by plastic films. Etched meandering metal structures 4 to 10 are provided on these layers 1, 2 and 3, which run parallel with respect to their axes and of which only a few are shown on each layer as an example.
  • the two metal structures 4, 5 and 9, 10 on the two outer support layers 1 and 3 are congruent, whereas the metal structures 6, 7 and 8 of the middle support layer 2 are offset such that they are approximately in the gaps between the Metal structures 4, 5 and 9, 10 run.
  • a layer 14 or 15 made of insulating material is introduced for spacing, which is preferably designed as a honeycomb structure.
  • the meandering line-shaped metal structures 4 and 5 of the carrier layer 1 are in phase with one another with regard to their geometric course, just like the meandering line-shaped metal structures 9 and 10 of the carrier layer 3.
  • the situation is different for the middle carrier layer 2.
  • the individual meandering metal structures 6, 7 and 8 a geometric phase offset to each other. It is pointed out once again that only a small part of the meandering metal structures is shown for each of the three carrier layers 1, 2 and 3, which in their entirety form a lattice structure per layer.
  • the lower carrier layer 1 shows a top view of the upper carrier layer 3, onto which, among other things, the meandering metal structures 9 and 10 are applied. It can be seen from this figure that the individual metal structures running parallel to one another have no geometrical phase offset with respect to one another. In the same way, the lower carrier layer 1 is formed with its metal structures 4 and 5.
  • FIG. 4 A top view of a section of the middle carrier layer 2 with its meandering metal structures 6, 7 and 8 is shown in FIG. 4.
  • the length of a meander period is denoted by 1.
  • the offset is 1/4.
  • An offset other than 1/4 can also lead to an improvement in the measurement parameter "ellipticity of circular polarization".
  • Figure 2 Is a cross-sectional view of the structure of the three-layer meander circular polarization grating according to Fig 1. It can be seen that the two outer carrier layers 1 and 3 metal layers 11 and 12 having a geometric-phase meander, pronouncede9 and 10 in Fig. 3, have. The interface is designated AB in FIG. 3.
  • the middle carrier layer 2 on the other hand, has a metal layer 13 with a phase-shifted meandering structure, cf. the meandering lines 6, 7 and 8 in Fig. 4 on. The interface for this is designated in Fig. 4 with CD.

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  • Aerials With Secondary Devices (AREA)
EP81104793A 1980-06-24 1981-06-22 Dispositif de changement de la polarisation d'ondes électromagnétiques Expired EP0042612B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3023562 1980-06-24
DE3023562A DE3023562C2 (de) 1980-06-24 1980-06-24 Einrichtung zur Polarisationsumwandlung elektromagnetischer Wellen

Publications (2)

Publication Number Publication Date
EP0042612A1 true EP0042612A1 (fr) 1981-12-30
EP0042612B1 EP0042612B1 (fr) 1983-10-12

Family

ID=6105322

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81104793A Expired EP0042612B1 (fr) 1980-06-24 1981-06-22 Dispositif de changement de la polarisation d'ondes électromagnétiques

Country Status (3)

Country Link
US (1) US4387377A (fr)
EP (1) EP0042612B1 (fr)
DE (1) DE3023562C2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2514203A1 (fr) * 1981-10-05 1983-04-08 Radant Etudes Filtre adaptatif spatial hyperfrequence pour antenne a polarisation quelconque et son procede de mise en oeuvre
EP0468620A2 (fr) * 1990-07-26 1992-01-29 Space Systems / Loral, Inc. Antenne à double bande avec réutilisation des fréquences
WO1995007558A1 (fr) * 1993-09-10 1995-03-16 Hazeltine Corporation Polariseurs a grand angle
WO2015004411A1 (fr) * 2013-07-09 2015-01-15 The Secretary Of State For Foreign & Commonwealth Affairs Polariseur circulaire de ligne méandrique

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FR2540296A1 (fr) * 1983-01-31 1984-08-03 Thomson Csf Filtre spatial d'ondes electromagnetiques de polarisation circulaire et antenne cassegrain comportant un tel filtre
US4556889A (en) * 1983-09-30 1985-12-03 The Boeing Company Aircraft trailing ball antenna
IT1180117B (it) * 1984-11-08 1987-09-23 Cselt Centro Studi Lab Telecom Struttura per antenna dicroica
US4772890A (en) * 1985-03-05 1988-09-20 Sperry Corporation Multi-band planar antenna array
US4652886A (en) * 1986-03-17 1987-03-24 Gte Government Systems Corporation Multilayer antenna aperture polarizer
US5086301A (en) * 1990-01-10 1992-02-04 Intelsat Polarization converter application for accessing linearly polarized satellites with single- or dual-circularly polarized earth station antennas
US5258768A (en) * 1990-07-26 1993-11-02 Space Systems/Loral, Inc. Dual band frequency reuse antenna
JPH0567912A (ja) * 1991-04-24 1993-03-19 Matsushita Electric Works Ltd 平面アンテナ
JPH0744380B2 (ja) * 1991-12-13 1995-05-15 松下電工株式会社 平面アンテナ
US5576721A (en) * 1993-03-31 1996-11-19 Space Systems/Loral, Inc. Composite multi-beam and shaped beam antenna system
US5467100A (en) * 1993-08-09 1995-11-14 Trw Inc. Slot-coupled fed dual circular polarization TEM mode slot array antenna
US5717410A (en) * 1994-05-20 1998-02-10 Mitsubishi Denki Kabushiki Kaisha Omnidirectional slot antenna
US5557292A (en) * 1994-06-22 1996-09-17 Space Systems/Loral, Inc. Multiple band folding antenna
US6006419A (en) * 1998-09-01 1999-12-28 Millitech Corporation Synthetic resin transreflector and method of making same
US6246381B1 (en) * 1999-07-01 2001-06-12 Telaxis Communications Corporation Insert mold process for forming polarizing grid element
US6426722B1 (en) 2000-03-08 2002-07-30 Hrl Laboratories, Llc Polarization converting radio frequency reflecting surface
US6812903B1 (en) * 2000-03-14 2004-11-02 Hrl Laboratories, Llc Radio frequency aperture
US6518931B1 (en) 2000-03-15 2003-02-11 Hrl Laboratories, Llc Vivaldi cloverleaf antenna
US6552696B1 (en) 2000-03-29 2003-04-22 Hrl Laboratories, Llc Electronically tunable reflector
US6483480B1 (en) 2000-03-29 2002-11-19 Hrl Laboratories, Llc Tunable impedance surface
US6538621B1 (en) 2000-03-29 2003-03-25 Hrl Laboratories, Llc Tunable impedance surface
FR2810455A1 (fr) * 2000-06-14 2001-12-21 Thomson Csf Dispositif pour cacher un radar equipant une automobile
US6483481B1 (en) 2000-11-14 2002-11-19 Hrl Laboratories, Llc Textured surface having high electromagnetic impedance in multiple frequency bands
WO2002084801A1 (fr) * 2001-04-13 2002-10-24 Comsat Corporation Antenne circulaire plate a double polarisation circulaire utilisant une structure multicouche a polariseur lineaire a meandres
EP1391005A4 (fr) * 2001-04-13 2005-01-26 Comsat Corp Polariseur lineaire bi-couche large bande a meandres
US6739028B2 (en) 2001-07-13 2004-05-25 Hrl Laboratories, Llc Molded high impedance surface and a method of making same
US6545647B1 (en) 2001-07-13 2003-04-08 Hrl Laboratories, Llc Antenna system for communicating simultaneously with a satellite and a terrestrial system
US6670921B2 (en) 2001-07-13 2003-12-30 Hrl Laboratories, Llc Low-cost HDMI-D packaging technique for integrating an efficient reconfigurable antenna array with RF MEMS switches and a high impedance surface
US7276990B2 (en) * 2002-05-15 2007-10-02 Hrl Laboratories, Llc Single-pole multi-throw switch having low parasitic reactance, and an antenna incorporating the same
US7298228B2 (en) * 2002-05-15 2007-11-20 Hrl Laboratories, Llc Single-pole multi-throw switch having low parasitic reactance, and an antenna incorporating the same
US7154451B1 (en) 2004-09-17 2006-12-26 Hrl Laboratories, Llc Large aperture rectenna based on planar lens structures
US7068234B2 (en) * 2003-05-12 2006-06-27 Hrl Laboratories, Llc Meta-element antenna and array
US7164387B2 (en) 2003-05-12 2007-01-16 Hrl Laboratories, Llc Compact tunable antenna
US7245269B2 (en) * 2003-05-12 2007-07-17 Hrl Laboratories, Llc Adaptive beam forming antenna system using a tunable impedance surface
US7456803B1 (en) 2003-05-12 2008-11-25 Hrl Laboratories, Llc Large aperture rectenna based on planar lens structures
US7253699B2 (en) * 2003-05-12 2007-08-07 Hrl Laboratories, Llc RF MEMS switch with integrated impedance matching structure
US7071888B2 (en) * 2003-05-12 2006-07-04 Hrl Laboratories, Llc Steerable leaky wave antenna capable of both forward and backward radiation
US6879298B1 (en) * 2003-10-15 2005-04-12 Harris Corporation Multi-band horn antenna using corrugations having frequency selective surfaces
US20070211403A1 (en) * 2003-12-05 2007-09-13 Hrl Laboratories, Llc Molded high impedance surface
US7307589B1 (en) 2005-12-29 2007-12-11 Hrl Laboratories, Llc Large-scale adaptive surface sensor arrays
US8212739B2 (en) 2007-05-15 2012-07-03 Hrl Laboratories, Llc Multiband tunable impedance surface
US7868829B1 (en) 2008-03-21 2011-01-11 Hrl Laboratories, Llc Reflectarray
US9116302B2 (en) * 2008-06-19 2015-08-25 Ravenbrick Llc Optical metapolarizer device
US8743000B2 (en) * 2009-07-31 2014-06-03 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Industry, Through The Communications Research Centre Canada Phase element comprising a stack of alternating conductive patterns and dielectric layers providing phase shift through capacitive and inductive couplings
US9048539B2 (en) 2010-06-24 2015-06-02 Netgear, Inc. Mitigation of undesired electromagnetic radiation using passive elements
US8436785B1 (en) 2010-11-03 2013-05-07 Hrl Laboratories, Llc Electrically tunable surface impedance structure with suppressed backward wave
US8994609B2 (en) 2011-09-23 2015-03-31 Hrl Laboratories, Llc Conformal surface wave feed
US9466887B2 (en) 2010-11-03 2016-10-11 Hrl Laboratories, Llc Low cost, 2D, electronically-steerable, artificial-impedance-surface antenna
CA2847185A1 (fr) 2011-09-01 2013-03-07 Ravenbrick, Llc Volet optique thermotrope incorporant des polariseurs pour revetement
US8982011B1 (en) 2011-09-23 2015-03-17 Hrl Laboratories, Llc Conformal antennas for mitigation of structural blockage
CN104347957B (zh) * 2013-08-01 2018-04-10 深圳光启创新技术有限公司 实现极化转换的超材料和极化器
US10027031B2 (en) * 2015-06-03 2018-07-17 Mitsubishi Electric Corporation Horn antenna device
US11122690B2 (en) 2018-12-31 2021-09-14 Hughes Network Systems, Llc Additive manufacturing techniques for meander-line polarizers
US11088456B2 (en) * 2019-08-20 2021-08-10 Bae Systems Information And Electronic Systems Integration Inc. Cavity backed notch antenna with additively manufactured radome

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US3560984A (en) * 1968-12-11 1971-02-02 Loral Corp Broadband circularly polarized antenna having a continuous rectangular aperture
US3754271A (en) * 1972-07-03 1973-08-21 Gte Sylvania Inc Broadband antenna polarizer
DE1922168B2 (de) * 1968-05-07 1975-10-02 Compagnie Francaise Thomson, Houston- Hotchkiss Brandt, Paris Vorrichtung für eine Höchstfrequenzantenne zur Umwandlung einer linearen Polarisation in eine elliptische oder kreisförmige Polarisation oder umgekehrt
GB1561969A (en) * 1975-11-13 1980-03-05 Marconi Co Ltd Apparatus for producing circularly or eliptically polarised electromagnetic radiation

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NL180623C (nl) * 1977-01-12 1987-08-17 Philips Nv Belichter voor een antenne.

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DE1922168B2 (de) * 1968-05-07 1975-10-02 Compagnie Francaise Thomson, Houston- Hotchkiss Brandt, Paris Vorrichtung für eine Höchstfrequenzantenne zur Umwandlung einer linearen Polarisation in eine elliptische oder kreisförmige Polarisation oder umgekehrt
US3560984A (en) * 1968-12-11 1971-02-02 Loral Corp Broadband circularly polarized antenna having a continuous rectangular aperture
US3754271A (en) * 1972-07-03 1973-08-21 Gte Sylvania Inc Broadband antenna polarizer
GB1561969A (en) * 1975-11-13 1980-03-05 Marconi Co Ltd Apparatus for producing circularly or eliptically polarised electromagnetic radiation

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THE MARCONI REVIEW, Vol. XLIII, No. 218, 1980, Rugby K.A.J. WARREN "A Planar Antenna Circular Polarization Converter Utilising Printed Circuit Technology" Seiten 176 bis 184 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2514203A1 (fr) * 1981-10-05 1983-04-08 Radant Etudes Filtre adaptatif spatial hyperfrequence pour antenne a polarisation quelconque et son procede de mise en oeuvre
EP0076760A1 (fr) * 1981-10-05 1983-04-13 Thomson-Csf Radant Filtre adaptatif spatial hyperfréquence pour antenne à polarisation quelconque et son procédé de mise en oeuvre
US4518966A (en) * 1981-10-05 1985-05-21 Societe D'etude Du Radant Adaptive spatial microwave filter for multipolarized antennas and the process of its application
EP0468620A2 (fr) * 1990-07-26 1992-01-29 Space Systems / Loral, Inc. Antenne à double bande avec réutilisation des fréquences
EP0468620A3 (en) * 1990-07-26 1992-05-20 Space Systems / Loral Inc. Dual band frequency reuse antenna
WO1995007558A1 (fr) * 1993-09-10 1995-03-16 Hazeltine Corporation Polariseurs a grand angle
WO2015004411A1 (fr) * 2013-07-09 2015-01-15 The Secretary Of State For Foreign & Commonwealth Affairs Polariseur circulaire de ligne méandrique

Also Published As

Publication number Publication date
DE3023562A1 (de) 1982-01-14
EP0042612B1 (fr) 1983-10-12
US4387377A (en) 1983-06-07
DE3023562C2 (de) 1982-10-28

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