FR2454190A1 - CASSEGRAIN ANTENNA MOUNTED IN A RADOME - Google Patents

CASSEGRAIN ANTENNA MOUNTED IN A RADOME

Info

Publication number
FR2454190A1
FR2454190A1 FR7908966A FR7908966A FR2454190A1 FR 2454190 A1 FR2454190 A1 FR 2454190A1 FR 7908966 A FR7908966 A FR 7908966A FR 7908966 A FR7908966 A FR 7908966A FR 2454190 A1 FR2454190 A1 FR 2454190A1
Authority
FR
France
Prior art keywords
radome
antenna mounted
antenna
cassegrain antenna
reflector
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
FR7908966A
Other languages
French (fr)
Other versions
FR2454190B1 (en
Inventor
Francois Gautier
Pierre Crochet
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 FR7908966A priority Critical patent/FR2454190A1/en
Priority to EP80400447A priority patent/EP0017589A1/en
Publication of FR2454190A1 publication Critical patent/FR2454190A1/en
Application granted granted Critical
Publication of FR2454190B1 publication Critical patent/FR2454190B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H01Q19/19—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 comprising one main concave reflecting surface associated with an auxiliary reflecting surface
    • H01Q19/195—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 comprising one main concave reflecting surface associated with an auxiliary reflecting surface wherein a reflecting surface acts also as a polarisation filter or a polarising device

Landscapes

  • Aerials With Secondary Devices (AREA)

Abstract

LA PRESENTE INVENTION CONCERNE LES ANTENNES CASSEGRAIN MONTEES DANS UN RADOME. LA FIXATION DIRECTE DU REFLECTEUR PRINCIPAL 4 DE L'ANTENNE QUI EST FIXE SUR LE RADOME 3 PERMET UN ACCROISSEMENT DU GAIN DE L'ANTENNE ET UNE MEILLEUR FIABILITE. L'INVENTION S'APPLIQUE A TOUS LES EQUIPEMENTS UTILISANT UNE ANTENNE PROTEGEE PAR UN RADOME ET COMPRENANT AU MOINS UN REFLECTEUR IMMOBILE PAR RAPPORT AU RADOME.THE PRESENT INVENTION CONCERNS CASSEGRAIN ANTENNAS MOUNTED IN A RADOME. THE DIRECT ATTACHMENT OF THE MAIN REFLECTOR 4 OF THE ANTENNA WHICH IS ATTACHED TO THE RADOME 3 ALLOWS AN INCREASED ANTENNA GAIN AND BETTER RELIABILITY. THE INVENTION APPLIES TO ALL EQUIPMENT USING AN ANTENNA PROTECTED BY A RADOME AND INCLUDING AT LEAST ONE REFLECTOR IMMOBILE WITH RESPECT TO THE RADOME.

FR7908966A 1979-04-09 1979-04-09 CASSEGRAIN ANTENNA MOUNTED IN A RADOME Granted FR2454190A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7908966A FR2454190A1 (en) 1979-04-09 1979-04-09 CASSEGRAIN ANTENNA MOUNTED IN A RADOME
EP80400447A EP0017589A1 (en) 1979-04-09 1980-04-03 Cassegrain antenna incorporated in a radome

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7908966A FR2454190A1 (en) 1979-04-09 1979-04-09 CASSEGRAIN ANTENNA MOUNTED IN A RADOME

Publications (2)

Publication Number Publication Date
FR2454190A1 true FR2454190A1 (en) 1980-11-07
FR2454190B1 FR2454190B1 (en) 1983-05-20

Family

ID=9224141

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7908966A Granted FR2454190A1 (en) 1979-04-09 1979-04-09 CASSEGRAIN ANTENNA MOUNTED IN A RADOME

Country Status (2)

Country Link
EP (1) EP0017589A1 (en)
FR (1) FR2454190A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6570540B2 (en) 2001-09-14 2003-05-27 The Boeing Company Reflector assembly for minimizing reflections of electromagnetic energy from an antenna disposed within a radome

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1584348A (en) * 1968-07-16 1969-12-19
US4070678A (en) * 1976-04-02 1978-01-24 Raytheon Company Wide angle scanning antenna assembly
NL7809306A (en) * 1977-09-13 1979-03-15 Marconi Co Ltd ANTENNA SYSTEMS FOR GROUND-INSTALLED RADAR EQUIPMENT.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1584348A (en) * 1968-07-16 1969-12-19
US4070678A (en) * 1976-04-02 1978-01-24 Raytheon Company Wide angle scanning antenna assembly
NL7809306A (en) * 1977-09-13 1979-03-15 Marconi Co Ltd ANTENNA SYSTEMS FOR GROUND-INSTALLED RADAR EQUIPMENT.

Also Published As

Publication number Publication date
FR2454190B1 (en) 1983-05-20
EP0017589A1 (en) 1980-10-15

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Legal Events

Date Code Title Description
ST Notification of lapse