EP0019548A1 - Elément rayonnant à plans parallèles et son application à la réalisation d'antennes réseaux - Google Patents

Elément rayonnant à plans parallèles et son application à la réalisation d'antennes réseaux Download PDF

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Publication number
EP0019548A1
EP0019548A1 EP80400668A EP80400668A EP0019548A1 EP 0019548 A1 EP0019548 A1 EP 0019548A1 EP 80400668 A EP80400668 A EP 80400668A EP 80400668 A EP80400668 A EP 80400668A EP 0019548 A1 EP0019548 A1 EP 0019548A1
Authority
EP
European Patent Office
Prior art keywords
radiating element
pill
element according
radiating
box
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.)
Withdrawn
Application number
EP80400668A
Other languages
German (de)
English (en)
French (fr)
Inventor
Joseph Roger
Albert Dupressoir
Claude Aubry
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Publication of EP0019548A1 publication Critical patent/EP0019548A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/18—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/0006—Particular feeding systems
    • H01Q21/0012—Radial guide fed arrays

Definitions

  • the present invention relates to a radiating element with parallel planes, preferably operating in the microwave domain.
  • This element can be used as a primary source or as a microwave distributor of a network antenna, delivering a plane wave.
  • antenna with parallel planes is meant an antenna essentially constituted by two parallel plates bounded by a cylindro-conical bottom illuminated by a source placed on its focal line.
  • the bottom is cylindro-parabolic, we speak of Pill-Box antenna or "Cheese” antenna depending on the height separating the two plates.
  • the object of the invention is to produce a radiating element with parallel planes transforming a spherical wave into a plane wave, and of small overall depth and which can serve as an equiphase supply for a linear array antenna or for a slab antenna.
  • the radiating sources of a linear array can be supplied by a waveguide whose energy is taken up by regularly spaced probes, which can be slots or plungers or even couplers.
  • a disadvantage of such a solution is its dispersiveness, that is to say that the phase law of the transmitted wave varies with frequency, due to the difficulty there is in adapting the input of probe alignment with frequency.
  • the object of the invention is to produce a radiating element with parallel planes operating in the microwave domain transforming a spherical wave into a plane wave. It consists of a focusing system of the Pill-Box or folded Cheese type associated by stacking with at least one second focusing system illuminated by a source delivering a spherical wave.
  • the invention makes it possible to feed a linear array antenna without having the drawbacks described above.
  • a stack of radiating elements according to the invention makes it possible to constitute an equiphase microwave distributor for a slab antenna.
  • FIG. 1 represents a radiating element with parallel planes of the pill-box or classic folded cheese type.
  • the power source 1 of the antenna is separated from the radiating part 2 by a partition 3 between the power supply 4 and radiating parts 2.
  • this radiating element Pill-Box or Folded Cheese consists of two Pill-Boxes or two elementary “cheeses” coupled by a slot 5 which runs all along the cylindro-parabolic reflective bottom 6.
  • the part 4 of the folded element is excited by the source 7, a horn for example.
  • the slot 5 is dimensioned so that the assembly formed by it and the two cheeses 2 and 4 is a suitable folded guide. This system above all gives good results with a TEM mode.
  • the object of the invention is a radiating element with parallel planes transforming a spherical wave into a plane wave, having a footprint in height and in depth much smaller than the overall length.
  • FIG. 2 shows a nonlimiting example of the radiating element with parallel planes according to the invention. It consists of a succession of at least two focusing systems, the first 7 of which is illuminated by a source 8, a horn for example, delivering a spherical wave,. having for example a law of Gaussian amplitude and a law of quadratic phase.
  • This first focusing system 7 is constituted by two radiating elements with parallel planes 9 1 and 9 2 of the Pill-Box or Cheese type coupled together by a slit 10 which runs all along a cylindro-hyperbolic reflective bottom 11 which is common to them.
  • the spherical wave emitted by the source 8 is reflected on the mirror with hyperbolic profile 11, -whose curvature as well as those of the cylindro-hyperbolic reflectors of the following focusing systems, for example 12, is weak, not modifying, with each reflection, only slightly the curvature of the incident wave.
  • the various successive focusing systems in relatively large number produced in the same manner as the first, are constituted by slightly curved reflectors, which makes it possible to obtain a relatively small overall depth.
  • the last focusing system 13 is constituted by two elements 13 1 and 13 2 of the Pill-Box or Cheese type coupled together by a slot 14 running all along a cylindro-parabolic reflector 15 which transforms the wave into a plane wave .
  • the elements of the Pill-Box or Cheese type 9 1 and 9 2 are connected together by directional coupling, due to the shape of the slot or else produced by means of probes.
  • the radiating element according to the invention is provided, at the outlet, with a flange horn 16, making it possible to obtain a more sectoral radiation diagram by increasing its directivity.
  • the invention makes it possible to produce an antenna radiating an equiphase wave.
  • the invention can also be used as a distributor for a linear array antenna, as shown in FIG. 3.
  • the opening 17 of the last focusing system 18 is closed by a linear array of slots 19, the largest dimension of which is perpendicular to the polarization plane of the incident wave.
  • a radiating element with parallel planes according to the invention can produce a distributor for a monopulse radar antenna provided that the source is a two-channel horn enabling a sum channel and a difference channel to be obtained.
  • An interesting application of the invention is the production of a flat array antenna or panel antenna.
  • a stack of radiating elements according to the invention makes it possible to obtain a slab antenna 23, the power being supplied by a slot wave guide 24 for example, as shown in FIG. 5.
  • the use of phase shifters between the 'ali 25 and slab 23 provides an electronic scan of the operating volume of the radar by the beam radiated by the antenna associated with the deviation in the horizontal and vertical planes.
  • These slab antennas have the advantage of being very flat.

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
EP80400668A 1979-05-18 1980-05-14 Elément rayonnant à plans parallèles et son application à la réalisation d'antennes réseaux Withdrawn EP0019548A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7912711A FR2457020A1 (fr) 1979-05-18 1979-05-18 Element rayonnant a plans paralleles et son application a la realisation d'antennes reseaux
FR7912711 1979-05-18

Publications (1)

Publication Number Publication Date
EP0019548A1 true EP0019548A1 (fr) 1980-11-26

Family

ID=9225640

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80400668A Withdrawn EP0019548A1 (fr) 1979-05-18 1980-05-14 Elément rayonnant à plans parallèles et son application à la réalisation d'antennes réseaux

Country Status (2)

Country Link
EP (1) EP0019548A1 (OSRAM)
FR (1) FR2457020A1 (OSRAM)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0083312A1 (en) 1981-12-28 1983-07-06 Ciba-Geigy Ag Aqueous based fire foam compositions containing hydrocarbyl sulfide terminated oligomer stabilizers
RU2216831C1 (ru) * 2002-02-20 2003-11-20 Федеральное государственное унитарное предприятие "Воронежский научно-исследовательский институт связи" Антенное устройство с повышенной направленностью в е-плоскости
DE10256396A1 (de) * 2002-12-02 2004-06-24 Martin Prof. Dr. Pietralla Einkoppelungsvorrichtung für elektromagnetische Strahlung
WO2009020404A1 (en) * 2007-08-07 2009-02-12 Industrial Research Limited Beam forming system and method
RU184981U1 (ru) * 2018-08-13 2018-11-15 Акционерное общество "Концерн "Созвездие" Антенное устройство

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2655202B1 (fr) * 1989-11-24 1992-02-07 Thomson Csf Antenne a polarisation circulaire, notamment pour reseau d'antennes.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2767396A (en) * 1946-04-30 1956-10-16 Bell Telephone Labor Inc Directive antenna systems
FR2366711A1 (fr) * 1976-09-30 1978-04-28 Texas Instruments Inc Ensemble d'antenne bifocale
EP0009063A1 (en) * 1977-09-23 1980-04-02 Commonwealth Scientific And Industrial Research Organisation Parallel plate electromagnetic lens

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2767396A (en) * 1946-04-30 1956-10-16 Bell Telephone Labor Inc Directive antenna systems
FR2366711A1 (fr) * 1976-09-30 1978-04-28 Texas Instruments Inc Ensemble d'antenne bifocale
EP0009063A1 (en) * 1977-09-23 1980-04-02 Commonwealth Scientific And Industrial Research Organisation Parallel plate electromagnetic lens

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0083312A1 (en) 1981-12-28 1983-07-06 Ciba-Geigy Ag Aqueous based fire foam compositions containing hydrocarbyl sulfide terminated oligomer stabilizers
RU2216831C1 (ru) * 2002-02-20 2003-11-20 Федеральное государственное унитарное предприятие "Воронежский научно-исследовательский институт связи" Антенное устройство с повышенной направленностью в е-плоскости
DE10256396A1 (de) * 2002-12-02 2004-06-24 Martin Prof. Dr. Pietralla Einkoppelungsvorrichtung für elektromagnetische Strahlung
WO2009020404A1 (en) * 2007-08-07 2009-02-12 Industrial Research Limited Beam forming system and method
US8331197B2 (en) 2007-08-07 2012-12-11 Industrial Research Limited Beam forming system and method
RU184981U1 (ru) * 2018-08-13 2018-11-15 Акционерное общество "Концерн "Созвездие" Антенное устройство

Also Published As

Publication number Publication date
FR2457020A1 (fr) 1980-12-12
FR2457020B1 (OSRAM) 1982-12-31

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Effective date: 19801208

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Effective date: 19820709

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Inventor name: ROGER, JOSEPH

Inventor name: AUBRY, CLAUDE

Inventor name: DUPRESSOIR, ALBERT