BR9805826A - Antena para comunicação com um satélite de órbita terrestre baixa - Google Patents

Antena para comunicação com um satélite de órbita terrestre baixa

Info

Publication number
BR9805826A
BR9805826A BR9805826-6A BR9805826A BR9805826A BR 9805826 A BR9805826 A BR 9805826A BR 9805826 A BR9805826 A BR 9805826A BR 9805826 A BR9805826 A BR 9805826A
Authority
BR
Brazil
Prior art keywords
antenna
satellite
communication
reflector
displacement
Prior art date
Application number
BR9805826-6A
Other languages
English (en)
Inventor
Osamu Yamamoto
Yuichi Iwata
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
Application filed by Nec Corp filed Critical Nec Corp
Publication of BR9805826A publication Critical patent/BR9805826A/pt

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
    • 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
    • H01Q19/132—Horn reflector antennas; Off-set feeding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/12—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
    • H01Q3/16—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying relative position of primary active element and a reflecting device
    • H01Q3/20—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying relative position of primary active element and a reflecting device wherein the primary active element is fixed and the reflecting device is movable
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S343/00—Communications: radio wave antennas
    • Y10S343/02—Satellite-mounted antenna

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Aerials With Secondary Devices (AREA)
  • Support Of Aerials (AREA)

Abstract

"ANTENA PARA COMUNICAçãO COM UM SATéLITE DE óRBITA TERRESTRE BAIXA". O objetivo da presente invenção é prover uma antena para comunicação com um satélite de órbita terrestre baixa (LEO) que seja pequena e leve e possa rastrear um satélite LEO em alta velocidade, em uma estação terrestre pequena, usando um satélite LEO. A antena de acordo com a presente invenção usa dois refletores do tipo de antena parabólica de deslocamento e cada alimentação primária é instalada na posição focal de uma parabolóide formando o refletor. A quantidade de um deslocamento da antena parabólica de deslocamento é selecionada de modo que, o ganho da antena seja o máximo no ângulo de elevação operacional mínimo. Cada alimentação primária é mecanicamente independente do refletor móvel, é anexada e fixada a uma linha de alimentação. Enquanto isso, cada refletor é girado com base em um eixo de azimute e um eixo de elevação de acordo com a montagem Az-EL.
BR9805826-6A 1997-12-22 1998-12-22 Antena para comunicação com um satélite de órbita terrestre baixa BR9805826A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP35321097A JP3313636B2 (ja) 1997-12-22 1997-12-22 低軌道衛星通信用アンテナ装置

Publications (1)

Publication Number Publication Date
BR9805826A true BR9805826A (pt) 1999-12-21

Family

ID=18429312

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9805826-6A BR9805826A (pt) 1997-12-22 1998-12-22 Antena para comunicação com um satélite de órbita terrestre baixa

Country Status (6)

Country Link
US (1) US6262689B1 (pt)
EP (1) EP0930669A3 (pt)
JP (1) JP3313636B2 (pt)
AU (1) AU760579B2 (pt)
BR (1) BR9805826A (pt)
CA (1) CA2256785C (pt)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2793631B1 (fr) * 1999-05-10 2001-07-27 Centre Nat Etd Spatiales Terminal de communication bidirectionnel multmedia
AU2001255374A1 (en) * 2000-04-14 2001-10-30 Aerovironment Inc. Active antenna communication system
US6677908B2 (en) 2000-12-21 2004-01-13 Ems Technologies Canada, Ltd Multimedia aircraft antenna
US6563473B2 (en) 2001-02-22 2003-05-13 Ems Technologies Canada, Ltd. Low sidelobe contiguous-parabolic reflector array
WO2002071538A1 (fr) * 2001-03-02 2002-09-12 Mitsubishi Denki Kabushiki Kaisha Antenne a reflecteur
EP1291965B1 (en) * 2001-03-02 2010-03-31 Mitsubishi Denki Kabushiki Kaisha Antenna
US6747604B2 (en) * 2002-10-08 2004-06-08 Ems Technologies Canada, Inc. Steerable offset antenna with fixed feed source
JP2006261994A (ja) * 2005-03-16 2006-09-28 Toshiba Corp アンテナ装置
US20110171901A1 (en) * 2007-10-18 2011-07-14 Gregory Thane Wyler Multiple feed antenna and methods of using same
WO2009051592A1 (en) * 2007-10-18 2009-04-23 O3B Networks Limited System and method for satellite communication
JP5659905B2 (ja) * 2011-03-29 2015-01-28 日本電気株式会社 衛星搭載用マイクロ波送信装置、該装置を用いる目標地域の追尾方法、及び制御プログラム
US9093742B2 (en) 2011-10-17 2015-07-28 McDonald, Dettwiler and Associates Corporation Wide scan steerable antenna with no key-hole
US9484976B2 (en) 2012-07-13 2016-11-01 Thrane & Thrane A/S Assembly comprising two antennas controllable to output or not output signals
US9413078B2 (en) 2013-06-16 2016-08-09 Siklu Communication ltd. Millimeter-wave system with beam direction by switching sources
US9806428B2 (en) 2013-06-16 2017-10-31 Siklu Communication ltd. Systems and methods for forming, directing, and narrowing communication beams
US9899745B2 (en) * 2013-09-13 2018-02-20 Raytheon Company Low profile high efficiency multi-band reflector antennas
US9590299B2 (en) 2015-06-15 2017-03-07 Northrop Grumman Systems Corporation Integrated antenna and RF payload for low-cost inter-satellite links using super-elliptical antenna aperture with single axis gimbal
US9979082B2 (en) 2015-08-10 2018-05-22 Viasat, Inc. Method and apparatus for beam-steerable antenna with single-drive mechanism
CN113438007B (zh) * 2020-03-23 2022-12-06 中国电信股份有限公司 卫星通信方法、装置、系统和存储介质
CN114362807B (zh) * 2021-12-27 2024-01-02 北京遥感设备研究所 一种低轨卫星通信终端双天线快速切换系统及方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2485275A1 (fr) * 1979-06-18 1981-12-24 Aerospatiale Procede de pilotage d'orientation d'antenne sur un satellite et configuration de detecteurs mettant en oeuvre ce procede
JPS5744302A (en) * 1980-08-28 1982-03-12 Mitsubishi Electric Corp Antenna device
US4535338A (en) * 1982-05-10 1985-08-13 At&T Bell Laboratories Multibeam antenna arrangement
JPS5991708A (ja) * 1982-11-17 1984-05-26 Mitsubishi Electric Corp アンテナ装置
US4638322A (en) 1984-02-14 1987-01-20 The Boeing Company Multiple feed antenna
US4618867A (en) * 1984-06-14 1986-10-21 At&T Bell Laboratories Scanning beam antenna with linear array feed
FR2596208B1 (fr) 1986-03-19 1990-08-03 Europ Agence Spatiale Antenne bifrequence a faisceaux orientables independants
JPH01280271A (ja) 1988-05-02 1989-11-10 Aisin Seiki Co Ltd アンテナ装置
JP3034260B2 (ja) 1989-05-31 2000-04-17 郵政省通信総合研究所長 アンテナポインティング装置
FR2653941B1 (fr) 1989-10-31 1992-02-28 Thomson Lgt Antenne de reception multifocale a direction de pointage unique pour plusieurs satellites.
JPH04208891A (ja) 1990-12-03 1992-07-30 Nec Corp 複数レーダ自動追尾処理方式
JP3473033B2 (ja) 1992-11-11 2003-12-02 松下電器産業株式会社 衛星受信用マルチビームアンテナ
FR2713404B1 (fr) * 1993-12-02 1996-01-05 Alcatel Espace Antenne orientale avec conservation des axes de polarisation.
US5485168A (en) * 1994-12-21 1996-01-16 Electrospace Systems, Inc. Multiband satellite communication antenna system with retractable subreflector
US6032041A (en) * 1997-06-02 2000-02-29 Hughes Electronics Corporation Method and system for providing wideband communications to mobile users in a satellite-based network
US6061562A (en) * 1997-10-30 2000-05-09 Raytheon Company Wireless communication using an airborne switching node

Also Published As

Publication number Publication date
CA2256785C (en) 2001-12-18
EP0930669A2 (en) 1999-07-21
JPH11186827A (ja) 1999-07-09
CA2256785A1 (en) 1999-06-22
US6262689B1 (en) 2001-07-17
AU9726098A (en) 1999-07-08
JP3313636B2 (ja) 2002-08-12
EP0930669A3 (en) 1999-09-15
AU760579B2 (en) 2003-05-15

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 9A E 10A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO PUBLICADO NA RPI 1971 DE 14/10/2008.