EP0489612A1 - Mit der Aussenhaut bündig angeordnete Hohlleiterschlitzantenne - Google Patents

Mit der Aussenhaut bündig angeordnete Hohlleiterschlitzantenne Download PDF

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Publication number
EP0489612A1
EP0489612A1 EP91403103A EP91403103A EP0489612A1 EP 0489612 A1 EP0489612 A1 EP 0489612A1 EP 91403103 A EP91403103 A EP 91403103A EP 91403103 A EP91403103 A EP 91403103A EP 0489612 A1 EP0489612 A1 EP 0489612A1
Authority
EP
European Patent Office
Prior art keywords
groove
antenna
wall
plate
waveguide
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Withdrawn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
EP91403103A
Other languages
English (en)
French (fr)
Inventor
Michel Doussot
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.)
Thomson TRT Defense
Original Assignee
Thomson TRT Defense
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 TRT Defense filed Critical Thomson TRT Defense
Publication of EP0489612A1 publication Critical patent/EP0489612A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
    • H01Q1/286—Adaptation for use in or on aircraft, missiles, satellites, or balloons substantially flush mounted with the skin of the craft
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/40—Radiating elements coated with or embedded in protective material
    • 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
    • H01Q13/18—Resonant slot antennas the slot being backed by, or formed in boundary wall of, a resonant cavity ; Open cavity antennas

Definitions

  • the present invention relates to microwave antennas of the slot waveguide type, that is to say the antennas made of a waveguide in the partition of which were made one or more radiating slots.
  • the invention relates more particularly to these antennas when they are mounted against a wall such as the wall of a building or a vehicle.
  • Known antennas of this type are made from a waveguide of rectangular or circular section and the slot or slots are generally obtained by milling.
  • the antenna thus produced is associated with a fixing device to hold it on the wall against which it is to be mounted, and, more often than not, a radome formed by a thin layer of dielectric which covers at least the slot or slots.
  • the object of the present invention is to simplify the production of these slot antennas. This is obtained by making a groove in the wall and by covering this groove with a conductive plate pierced with slots so that the assembly thus produced constitutes the desired slot wave guide.
  • an antenna mounted on a wall and constituted by a slotted waveguide, characterized in that it comprises a groove formed in the wall and a conductive plate in which the slits are made and in that that the plate covers the groove so as to delimit a space between the plate and the groove, this space between the plate and the groove constituting the interior space of the slotted waveguide.
  • FIG. 1 shows, seen in cross section, that is to say in a section plane perpendicular to the largest dimension of its waveguide, an antenna of the slotted waveguide type according to known art .
  • This antenna is mounted on a wall 1 specially designed to receive it; in the case of the example described, the wall is a part of the fuselage of an airplane.
  • This wall 1, which, without the antenna, would have been a curved wall without rapid variation in curvature, here has a planar surface in the middle of a curved surface and this planar surface is pierced with an oblong hole in which sinks partially a metal profile 7 which constitutes a rectangular waveguide provided with two kinds of wings, 7a, 7b, on its short sides.
  • the waveguide has its two long sides parallel to the planar surface of the wall 1 and situated on either side of this planar surface and that of the two long sides which is outside the fuselage is pierced with slots, 4.
  • a dielectric plate 6 is bonded, on the outside of the waveguide, to the long side pierced with slots, to act as a radome.
  • the wings 7a, 7b are pierced with holes through which pass screws, such as 8a and 8b, which secure the profile 7 by screwing into the wall 1 at the flat surface of this wall.
  • FIG. 2 represents, seen in cross section, that is to say in a section plane perpendicular to the largest dimension of its waveguide, an antenna of the slotted waveguide type according to the invention.
  • This antenna is mounted on the same type of aircraft and in the same place of the fuselage as the antenna according to FIG. 1; but here the wall at the level of the antenna is studied and designed in a different way.
  • the wall 1 no longer has an oblong hole but a longitudinal groove, 2, with vertical sides and flat bottom, the tops of the sides respectively have two edges 2a, 2b on which comes to take support a panel 3 consisting of a printed circuit; this printed circuit comprises a support made of dielectric material, 6, on which is deposited a conductive metallic layer, 5, except in certain places, in order to thus determine slots, 4, in the metallic layer.
  • the printed circuit 3 is bonded, using a conductive adhesive, to the flanges 2a, 2b, with its dielectric face facing outward from the groove 2 and therefore outward from the aircraft.
  • the antenna according to FIG. 2 is indeed, like the antenna according to FIG. 1, an antenna of the slot waveguide type, the interior space of the waveguide of which is delimited by the volume between groove and the panel 3 which covers the groove, that is to say the printed circuit.
  • the antenna is protected by a radome formed here by the support made of dielectric material, 6, of the printed circuit.
  • the panel 3 instead of being constituted by a printed circuit, can, for example, include a metallic plate, conductive, pierced with slots and another plate of dielectric material, these two plates being joined by gluing and having been studied to have sufficient rigidity. It is even possible, if a radome is not essential, not to close the groove only with a simple conductive metal plate provided with slots.
  • the waveguide is a rectangular guide, but the invention also applies to the production of antennas where the slotted waveguide would be of different section and in particular to section waveguides.
  • circular and guides whose section varies longitudinally.
  • antennas can be made with one or more slots.
EP91403103A 1990-11-27 1991-11-19 Mit der Aussenhaut bündig angeordnete Hohlleiterschlitzantenne Withdrawn EP0489612A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9014782A FR2669777B1 (fr) 1990-11-27 1990-11-27 Antenne du type guide d'ondes a fentes associee a une paroi.
FR9014782 1990-11-27

Publications (1)

Publication Number Publication Date
EP0489612A1 true EP0489612A1 (de) 1992-06-10

Family

ID=9402613

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91403103A Withdrawn EP0489612A1 (de) 1990-11-27 1991-11-19 Mit der Aussenhaut bündig angeordnete Hohlleiterschlitzantenne

Country Status (4)

Country Link
EP (1) EP0489612A1 (de)
JP (1) JPH04273702A (de)
CA (1) CA2056157A1 (de)
FR (1) FR2669777B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2274206A (en) * 1993-01-09 1994-07-13 Ferranti Int Plc Aerodynamic circularly-polarised antenna
WO1995001660A1 (en) * 1993-07-01 1995-01-12 The Boeing Company Nose gear door integral composite glide slope antenna

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4369194B2 (ja) * 2003-09-30 2009-11-18 Ｈｏｙａ株式会社 プラスチックレンズ及びその製造方法
JP5023032B2 (ja) * 2008-09-25 2012-09-12 株式会社東芝 面型アンテナ装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3713167A (en) * 1971-08-05 1973-01-23 Us Navy Omni-steerable cardioid antenna
EP0216331A2 (de) * 1985-09-23 1987-04-01 AT&T Corp. Mehrrichtungserreger und plattierte Antenne für Oberflächenwellen
EP0250832A2 (de) * 1986-06-23 1988-01-07 Ball Corporation Hohlraumschlitzantenne
EP0291233A2 (de) * 1987-05-11 1988-11-17 Hazeltine Corporation In die Flugzeughaut integrierte Mehrmoden-Rundumantenne

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58111503A (ja) * 1981-12-25 1983-07-02 Nissan Motor Co Ltd 飛翔体塔載伝送線路型アンテナ装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3713167A (en) * 1971-08-05 1973-01-23 Us Navy Omni-steerable cardioid antenna
EP0216331A2 (de) * 1985-09-23 1987-04-01 AT&T Corp. Mehrrichtungserreger und plattierte Antenne für Oberflächenwellen
EP0250832A2 (de) * 1986-06-23 1988-01-07 Ball Corporation Hohlraumschlitzantenne
EP0291233A2 (de) * 1987-05-11 1988-11-17 Hazeltine Corporation In die Flugzeughaut integrierte Mehrmoden-Rundumantenne

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 7, no. 218 (E-200)(1363), 28 septembre 1983; & JP - A - 58111503 (NISSAN JIDOSHA) 02.07.1983 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2274206A (en) * 1993-01-09 1994-07-13 Ferranti Int Plc Aerodynamic circularly-polarised antenna
GB2274206B (en) * 1993-01-09 1996-08-07 Ferranti Int Plc Wide-band circularly-polarised antenna
WO1995001660A1 (en) * 1993-07-01 1995-01-12 The Boeing Company Nose gear door integral composite glide slope antenna

Also Published As

Publication number Publication date
JPH04273702A (ja) 1992-09-29
FR2669777B1 (fr) 1993-04-23
CA2056157A1 (en) 1992-05-28
FR2669777A1 (fr) 1992-05-29

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