GB1512681A - Arrangement comprising an electromagnetic wave filtering grid - Google Patents

Arrangement comprising an electromagnetic wave filtering grid

Info

Publication number
GB1512681A
GB1512681A GB3324975A GB3324975A GB1512681A GB 1512681 A GB1512681 A GB 1512681A GB 3324975 A GB3324975 A GB 3324975A GB 3324975 A GB3324975 A GB 3324975A GB 1512681 A GB1512681 A GB 1512681A
Authority
GB
United Kingdom
Prior art keywords
grid
band
mirrors
beams
resultant beam
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
Application number
GB3324975A
Other languages
English (en)
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 GB1512681A publication Critical patent/GB1512681A/en
Expired 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
    • H01Q19/18—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
    • H01Q19/191—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 the primary active element uses one or more deflecting surfaces, e.g. beam waveguide feeds
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
    • H01Q15/0013—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective
    • H01Q15/0033—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective used for beam splitting or combining, e.g. acting as a quasi-optical multiplexer

Landscapes

  • Aerials With Secondary Devices (AREA)
GB3324975A 1974-08-09 1975-08-08 Arrangement comprising an electromagnetic wave filtering grid Expired GB1512681A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7427766A FR2281660A1 (fr) 1974-08-09 1974-08-09 Dispositif muni d'une grille de filtrage

Publications (1)

Publication Number Publication Date
GB1512681A true GB1512681A (en) 1978-06-01

Family

ID=9142312

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3324975A Expired GB1512681A (en) 1974-08-09 1975-08-08 Arrangement comprising an electromagnetic wave filtering grid

Country Status (3)

Country Link
FR (1) FR2281660A1 (enrdf_load_stackoverflow)
GB (1) GB1512681A (enrdf_load_stackoverflow)
IT (1) IT1041177B (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0059343A1 (en) * 1981-02-09 1982-09-08 Nec Corporation Antenna apparatus including frequency separator having wide band transmission or reflection characteristics
DE3431986A1 (de) * 1984-08-30 1986-03-06 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Polarisationstrennender reflektor
CN103746187A (zh) * 2013-12-23 2014-04-23 北京邮电大学 一种卡塞格伦天线探测系统及其设计方法

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2429505A1 (fr) * 1978-06-20 1980-01-18 Thomson Csf Systeme d'alimentation periscopique pour antenne bi-gamme
FR2525823A1 (fr) * 1982-04-27 1983-10-28 Thomson Csf Dispositif d'excitation d'une source rainuree hyperfrequence bi-bande
FR2535904B1 (fr) * 1982-11-09 1985-08-02 Thomson Csf Joint tournant de puissance pour antenne double bande
FR2540296A1 (fr) * 1983-01-31 1984-08-03 Thomson Csf Filtre spatial d'ondes electromagnetiques de polarisation circulaire et antenne cassegrain comportant un tel filtre
DE3402659A1 (de) * 1984-01-26 1985-08-01 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Reflektorantenne fuer den betrieb in mehreren frequenzbereichen
WO2022053160A1 (en) * 2020-09-14 2022-03-17 Huawei Technologies Co., Ltd. Apparatus for feeding two radio waves into an offset reflector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0059343A1 (en) * 1981-02-09 1982-09-08 Nec Corporation Antenna apparatus including frequency separator having wide band transmission or reflection characteristics
DE3431986A1 (de) * 1984-08-30 1986-03-06 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Polarisationstrennender reflektor
CN103746187A (zh) * 2013-12-23 2014-04-23 北京邮电大学 一种卡塞格伦天线探测系统及其设计方法

Also Published As

Publication number Publication date
IT1041177B (it) 1980-01-10
FR2281660A1 (fr) 1976-03-05
FR2281660B1 (enrdf_load_stackoverflow) 1978-01-27

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee