FR2387528A1 - Microwave antenna for helicopter and moderate speed aircraft - has two parabolic metal sides and central slotted waveguide transmitting energy through dielectric side wall - Google Patents

Microwave antenna for helicopter and moderate speed aircraft - has two parabolic metal sides and central slotted waveguide transmitting energy through dielectric side wall

Info

Publication number
FR2387528A1
FR2387528A1 FR7711063A FR7711063A FR2387528A1 FR 2387528 A1 FR2387528 A1 FR 2387528A1 FR 7711063 A FR7711063 A FR 7711063A FR 7711063 A FR7711063 A FR 7711063A FR 2387528 A1 FR2387528 A1 FR 2387528A1
Authority
FR
France
Prior art keywords
side wall
helicopter
slotted waveguide
microwave antenna
transmitting energy
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
FR7711063A
Other languages
French (fr)
Other versions
FR2387528B1 (en
Inventor
Guy Albarel
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
Priority to FR7711063A priority Critical patent/FR2387528A1/en
Publication of FR2387528A1 publication Critical patent/FR2387528A1/en
Application granted granted Critical
Publication of FR2387528B1 publication Critical patent/FR2387528B1/fr
Granted legal-status Critical Current

Links

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
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
    • H01Q17/001—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems for modifying the directional characteristic of an aerial
    • 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
    • H01Q19/13—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 the primary radiating source being a single radiating element, e.g. a dipole, a slot, a waveguide termination
    • H01Q19/138—Parallel-plate feeds, e.g. pill-box, cheese aerials

Landscapes

  • Aerials With Secondary Devices (AREA)

Abstract

The microwave antennae is rotatable through 360 deg. and requires a min. of alteration to the aircraft for its installation, it forms a complete enclosure having low aerodynamic resistance. The antennae consists of two metal horizontal planes (5, 6) forming a shallow cheese, the plane edges having an approximately parabolic form. The side wall (4) completing the enclosure on one side is metal and reflects the energy transmitted from a central slotted waveguide (2) through the remaining wall (3) which is a dielectric. The design can be varied such that the transmitting wall is only partially dielectric and the waveguide may be replaced by one or two horns.
FR7711063A 1977-04-13 1977-04-13 Microwave antenna for helicopter and moderate speed aircraft - has two parabolic metal sides and central slotted waveguide transmitting energy through dielectric side wall Granted FR2387528A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7711063A FR2387528A1 (en) 1977-04-13 1977-04-13 Microwave antenna for helicopter and moderate speed aircraft - has two parabolic metal sides and central slotted waveguide transmitting energy through dielectric side wall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7711063A FR2387528A1 (en) 1977-04-13 1977-04-13 Microwave antenna for helicopter and moderate speed aircraft - has two parabolic metal sides and central slotted waveguide transmitting energy through dielectric side wall

Publications (2)

Publication Number Publication Date
FR2387528A1 true FR2387528A1 (en) 1978-11-10
FR2387528B1 FR2387528B1 (en) 1982-09-03

Family

ID=9189336

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7711063A Granted FR2387528A1 (en) 1977-04-13 1977-04-13 Microwave antenna for helicopter and moderate speed aircraft - has two parabolic metal sides and central slotted waveguide transmitting energy through dielectric side wall

Country Status (1)

Country Link
FR (1) FR2387528A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0021251A1 (en) * 1979-06-21 1981-01-07 Siemens Aktiengesellschaft Pillbox-radar antenna with integrated IFF antenna
EP0021252A1 (en) * 1979-06-21 1981-01-07 Siemens Aktiengesellschaft Pillbox type radar antenna with integrated IFF antenna

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0021251A1 (en) * 1979-06-21 1981-01-07 Siemens Aktiengesellschaft Pillbox-radar antenna with integrated IFF antenna
EP0021252A1 (en) * 1979-06-21 1981-01-07 Siemens Aktiengesellschaft Pillbox type radar antenna with integrated IFF antenna
DE2925104A1 (en) * 1979-06-21 1981-01-08 Siemens Ag RADAR ANTENNA WITH INTEGRATED IFF ANTENNA

Also Published As

Publication number Publication date
FR2387528B1 (en) 1982-09-03

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Legal Events

Date Code Title Description
ST Notification of lapse