EP0570863B1 - Rundsuchradarantenne in Flachbauweise - Google Patents

Rundsuchradarantenne in Flachbauweise Download PDF

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Publication number
EP0570863B1
EP0570863B1 EP93107897A EP93107897A EP0570863B1 EP 0570863 B1 EP0570863 B1 EP 0570863B1 EP 93107897 A EP93107897 A EP 93107897A EP 93107897 A EP93107897 A EP 93107897A EP 0570863 B1 EP0570863 B1 EP 0570863B1
Authority
EP
European Patent Office
Prior art keywords
radar antenna
transmitters
omnidirectional radar
polarisation
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.)
Expired - Lifetime
Application number
EP93107897A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0570863A3 (xx
EP0570863A2 (de
Inventor
Anton Dipl.-Ing. Brunner
Erwin Dipl.-Ing. Kress
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.)
Daimler Benz AG
Original Assignee
DaimlerChrysler AG
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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP0570863A2 publication Critical patent/EP0570863A2/de
Publication of EP0570863A3 publication Critical patent/EP0570863A3/xx
Application granted granted Critical
Publication of EP0570863B1 publication Critical patent/EP0570863B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01Q21/064—Two dimensional planar arrays using horn or slot 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
    • H01Q13/02—Waveguide horns
    • H01Q13/025—Multimode horn antennas; Horns using higher mode of propagation
    • H01Q13/0258—Orthomode horns
    • 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
    • H01Q21/245—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction provided with means for varying the polarisation 
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems

Definitions

  • the invention relates to a search radar antenna according to the preamble of claim 1.
  • Radar antennas with a variety of in rows and columns arranged single spotlights, which are open to the front Waveguide radiators are also formed known with electronically phase controlled antennas (M. I. Skolnik: “Introduction to Radar Systems", Second Edition, MacGraw Hill, 1980, pages 305 and 306).
  • phase-controlled antennas Although can be trained relatively flat, but is not All-round search possible. There are several such antennas required.
  • the object of the invention is to provide a highly mobile, circular search antenna in flat design rotating about a vertical axis, which can be switched between exact linear and circular polarization operation and has very low secondary peaks in the azimuth diagram.
  • Linear polarization is switched on when the 0 ° / 90 ° phase shifter is switched to 0 °, so that at the not only two coupling devices of each radiator matching amplitude, but also phase relationships consist.
  • Circular polarization exists if the 0 ° / 90 ° phase shifter is set to 90 ° so that on the two coupling devices have the same amplitude, but there are different phase relationships by 90 °. Is a switchable in each of the two feed routes 0 ° / 90 ° phase shifter inserted, so you can between select left or right circular polarization, each after which phase shifter is set to 90 °.
  • the search radar antenna can an IFF antenna (Identification-Friend-Foe; Friend-foe identifier).
  • IFF antenna Identity-Friend-Foe; Friend-foe identifier.
  • the carrier plate advantageously one or more Rows of forward-facing dipole radiators or one grid-like emitter structure on a dielectric Plate arranged, the leads to the dipole radiators or to the lattice-like radiator structure the carrier plate and between the distributors or in part through this to an IFF distributor located behind it be carried out with sum-difference hybrid.
  • An SLS radiator can still be found on the top of the antenna for the purpose of suppression of the sidelobes attach.
  • FIG. 1 is a perspective view in FIG with a vertical axis rotating search radar antenna Integrated IFF antenna shown in flat design.
  • the Radar antenna itself consists of a variety of horizontal ones Rows and vertical columns arranged Single radiators through waveguide radiators open to the front 1 are formed, each in front Funnel attachment 12, e.g. have a diagonal funnel.
  • a support plate is used to hold the waveguide radiator 1 2 provided for the inclusion or formation of Waveguide radiators 1 has openings 3.
  • Behind the Carrier plate 2 are one column for the radiators to supply these spotlights with a provided
  • the amplitude and phase are each perpendicular Waveguide trained vertical distributor 10 arranged.
  • a vertical distributor 10 is thus provided for each column.
  • the inputs of all vertical distributors 10 are of correspondingly arranged exits one behind horizontally extending horizontal distributor 11 fed.
  • the horizontal distributor 11 is over with its input a feed line with the actual radar device connected.
  • the carrier plate 2 can for example be made of Metal, especially aluminum, or metallized Plastic.
  • the waveguide radiators 1 also be metallized with their funnel extensions 12.
  • Fig. 2 is a perspective view another embodiment of a vertical Axis rotating search radar antenna according to the invention shown.
  • This antenna is what the primary radar is relates, constructed in exactly the same way as the antenna according to FIG. 1.
  • IFF dipoles are, however, in the exemplary embodiment according to FIG. 2 not available, so that a radome 19 as a flat plate applied directly to the carrier plate 2 at the front can become and thereby a much flatter Design results.
  • FIGs 3, 4 and 5 are views of a similar one Embodiment of a search radar antenna according to the Invention from the front, from the side or from above shown.
  • the front with a funnel approach e.g. a pyramid funnel 12 or Diagonal funnels 13 are provided, are two by 90 ° offset coupling devices 4, 5 for double feeding provided coaxially from the back of the lamp he follows.
  • a polarization switching device 6 provided, by means of which by pressing a are also located on the back of the heater 0 ° / 90 ° phase shifter 7 a switch between one can make linear and circular polarization.
  • Switchable Phase shifters 7 are in the two feed paths 8, 9 to the coupling devices spatially offset by 90 ° 4, 5 inserted. Are the two phase shifters 7 each switch 6 is set to 0 °, so lies linear polarization. When switching on the 90 ° phase shift arises in one of the two phase shifters 7 left circular and when switching on the 90 ° phase shift in the other phase shifter 7 right circular Polarization, with 0 ° in the other phase shifter is set.
  • the use of a double 0 ° / ⁇ 90 ° phase shifter combination allows one more Polarization switch: horizontal-vertical.
  • radiators 1 each have a column to supply them Radiator 1 with an intended amplitude and phase one of the vertical vertical distributors 10 arranged.
  • the inputs of all vertical distributors 10 are of appropriately arranged outputs of the behind it horizontal horizontal distributor 11 fed.
  • the amplitude distribution along the horizontal distributor 11 is set so that a very high radian antenna sub-zip attenuation results.
  • one of the waveguide radiators 1 has one Funnel approach, which is designed as a diagonal funnel 13 is.
  • the two coupling devices offset by 90 ° 14, 15 for double feed are here ⁇ 45 ° spatially offset from the horizontal plane.
  • the two coupling devices 14, 15 with the same Phase and amplitude excited is a funnel approach 12 provided in the form of a pyramid funnel.
  • a linear polarization occurs below 45 ° to the horizontal plane.
  • the Switching between horizontal and circular polarization is done in all cases by switching on a 0 ° / 90 ° phase shifter 7 in one of the two feed paths 8, 9 of each polarization switching device 6.
  • the vertical distributors 10 can be serial, parallel, in phase (equiphase) or operated in different phases.
  • the vertical distributor 10 the waveguide radiator 1 with that for a cosecans-shaped vertical diagram supply the necessary phase.
  • Special phase shifters can also be provided in the polarization switching devices for setting a special radiation diagram, for example a cosec 2 characteristic.
  • the polarization switching devices 6 can also additionally contain switchable phase shifters which allow the switching on of another beam shape, for example a pencil or fan beam instead of a cosec 2 characteristic.
  • the multiple version of the 0 ° / 90 ° phase shifter 7 for polarization switching in the polarization switching devices 6 can also be a double version all distributors 10, 11, i.e. two vertical distributors per spotlight column and one horizontal distributor for one of the two vertical distributors of all Radiator columns, and a one-time 0 ° / 90 ° or 0 ° / ⁇ 90 ° phase switch be applied.
  • All vertical distributors 10 can also be in one Work in the common plate.

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
EP93107897A 1992-05-22 1993-05-14 Rundsuchradarantenne in Flachbauweise Expired - Lifetime EP0570863B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4217091 1992-05-22
DE4217091 1992-05-22

Publications (3)

Publication Number Publication Date
EP0570863A2 EP0570863A2 (de) 1993-11-24
EP0570863A3 EP0570863A3 (xx) 1994-04-13
EP0570863B1 true EP0570863B1 (de) 1999-04-14

Family

ID=6459558

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93107897A Expired - Lifetime EP0570863B1 (de) 1992-05-22 1993-05-14 Rundsuchradarantenne in Flachbauweise

Country Status (2)

Country Link
EP (1) EP0570863B1 (xx)
DE (1) DE59309507D1 (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111463573A (zh) * 2020-04-21 2020-07-28 上海航天电子通讯设备研究所 一种双频段高隔离宽角扫描复合口径阵面天线

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19608622A1 (de) * 1996-03-06 1997-09-11 Sel Alcatel Ag Antennenanordnung und Sende- und Empfangsanlage damit
US6034647A (en) * 1998-01-13 2000-03-07 Raytheon Company Boxhorn array architecture using folded junctions
US7948443B2 (en) 2008-01-23 2011-05-24 The Boeing Company Structural feed aperture for space based phased array antennas
DE102014208389A1 (de) * 2014-05-06 2015-11-12 Robert Bosch Gmbh Antennenvorrichtung für ein Fahrzeug

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5443659A (en) * 1977-09-13 1979-04-06 Tech Res & Dev Inst Of Japan Def Agency Antenna unit
GB2058468B (en) * 1979-08-23 1983-10-12 Marconi Co Ltd Dual frequency aerial feed arrangement
WO1989009501A1 (en) * 1988-03-30 1989-10-05 British Satellite Broadcasting Limited Flat plate array antenna
DE3915048A1 (de) * 1989-05-08 1990-11-15 Siemens Ag Elektronisch phasengesteuerte antennenanordnung
JPH04234201A (ja) * 1990-08-06 1992-08-21 Harry J Gould 電子的に回転可能な偏波アンテナ給電装置
US5304999A (en) * 1991-11-20 1994-04-19 Electromagnetic Sciences, Inc. Polarization agility in an RF radiator module for use in a phased array

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111463573A (zh) * 2020-04-21 2020-07-28 上海航天电子通讯设备研究所 一种双频段高隔离宽角扫描复合口径阵面天线

Also Published As

Publication number Publication date
DE59309507D1 (de) 1999-05-20
EP0570863A3 (xx) 1994-04-13
EP0570863A2 (de) 1993-11-24

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