CA1296422C - Antenne multifaisceau - Google Patents

Antenne multifaisceau

Info

Publication number
CA1296422C
CA1296422C CA000556203A CA556203A CA1296422C CA 1296422 C CA1296422 C CA 1296422C CA 000556203 A CA000556203 A CA 000556203A CA 556203 A CA556203 A CA 556203A CA 1296422 C CA1296422 C CA 1296422C
Authority
CA
Canada
Prior art keywords
reflector
antenna
partial
multibeam antenna
partial 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.)
Expired - Lifetime
Application number
CA000556203A
Other languages
English (en)
Inventor
Ryuichi Iwata
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.)
NEC Corp
Original Assignee
NEC Corp
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
Priority claimed from JP453587A external-priority patent/JPS63173404A/ja
Priority claimed from JP975387A external-priority patent/JPH0612853B2/ja
Application filed by NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of CA1296422C publication Critical patent/CA1296422C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/007—Antennas or antenna systems providing at least two radiating patterns using two or more primary active elements in the focal region of a focusing device

Landscapes

  • Aerials With Secondary Devices (AREA)
CA000556203A 1987-01-12 1988-01-11 Antenne multifaisceau Expired - Lifetime CA1296422C (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP453587A JPS63173404A (ja) 1987-01-12 1987-01-12 マルチビ−ムアンテナ
JP62-4535 1987-01-12
JP975387A JPH0612853B2 (ja) 1987-01-19 1987-01-19 マルチビ−ムアンテナ
JP62-9753 1987-01-19

Publications (1)

Publication Number Publication Date
CA1296422C true CA1296422C (fr) 1992-02-25

Family

ID=26338338

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000556203A Expired - Lifetime CA1296422C (fr) 1987-01-12 1988-01-11 Antenne multifaisceau

Country Status (4)

Country Link
EP (1) EP0275062B1 (fr)
AU (1) AU605227B2 (fr)
CA (1) CA1296422C (fr)
DE (1) DE3885308D1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2227609A (en) * 1989-01-30 1990-08-01 David James George Martin Double aerial [daerial]
ES1008936Y (es) * 1989-01-31 1989-12-16 Televes S.A. Soporte para alimentadores de antenas parabolicas de recepcion multisatelite.
US5258767A (en) * 1989-03-14 1993-11-02 Kokusai Denshin Denwa Co., Ltd. Antenna system for shaped beam
FR2674377B1 (fr) * 1991-03-22 1993-06-04 Alcatel Espace Antenne radioelectrique a reflecteur multifocales.
FR2677815B1 (fr) * 1991-06-14 1994-03-18 Claude Chapu Reception de 3 satellites sur une parabole fixe.
FR2684809B1 (fr) * 1991-12-09 1994-01-21 Alcatel Espace Antenne passive multifaisceaux a reflecteur(s) conforme (s).
US6258895B1 (en) * 1992-06-26 2001-07-10 The Procter & Gamble Company Polymers having spiro orthoester groups, process of manufacturing and using
IT1271871B (it) * 1994-03-03 1997-06-09 Space Eng Srl Antenna multifascio in grado di ricevere/trasmettere segnali alla stessa frequenza, da/verso piu' direzioni coplanari, simultaneamente.
US5945960A (en) * 1996-12-02 1999-08-31 Space Systems/Loral, Inc. Method and apparatus for reconfiguring antenna radiation patterns
RU2694813C1 (ru) * 2018-10-10 2019-07-17 Федеральное государственное бюджетное учреждение наук Институт проблем машиноведения Российской академии наук (ИПМаш РАН) Способ формирования отражающих зеркальных поверхностей антенны космического радиотелескопа
CN119452524A (zh) * 2022-08-30 2025-02-14 华为技术有限公司 一种天线和通信设备

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3852763A (en) * 1970-06-08 1974-12-03 Communications Satellite Corp Torus-type antenna having a conical scan capability
US4259674A (en) * 1979-10-24 1981-03-31 Bell Laboratories Phased array antenna arrangement with filtering to reduce grating lobes
US4482897A (en) * 1982-06-28 1984-11-13 At&T Bell Laboratories Multibeam segmented reflector antennas
JPS6094508A (ja) * 1983-10-28 1985-05-27 Nec Corp 成形ビ−ムアンテナ

Also Published As

Publication number Publication date
EP0275062B1 (fr) 1993-11-03
AU1016988A (en) 1988-07-14
DE3885308D1 (de) 1993-12-09
AU605227B2 (en) 1991-01-10
EP0275062A3 (en) 1989-10-11
EP0275062A2 (fr) 1988-07-20

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Legal Events

Date Code Title Description
MKLA Lapsed