FI960283A0 - Förfarande och anordning för att förbättra antennverkningsgrad för en mobil satellitkommunikationsterminal - Google Patents

Förfarande och anordning för att förbättra antennverkningsgrad för en mobil satellitkommunikationsterminal

Info

Publication number
FI960283A0
FI960283A0 FI960283A FI960283A FI960283A0 FI 960283 A0 FI960283 A0 FI 960283A0 FI 960283 A FI960283 A FI 960283A FI 960283 A FI960283 A FI 960283A FI 960283 A0 FI960283 A0 FI 960283A0
Authority
FI
Finland
Prior art keywords
communication terminal
satellite communication
antenna efficiency
mobile satellite
improving antenna
Prior art date
Application number
FI960283A
Other languages
English (en)
Finnish (fi)
Other versions
FI960283A (sv
Inventor
Edward Hirshfield
Original Assignee
Globalstar Lp
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 Globalstar Lp filed Critical Globalstar Lp
Publication of FI960283A0 publication Critical patent/FI960283A0/sv
Publication of FI960283A publication Critical patent/FI960283A/sv

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
    • H01Q11/08—Helical antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18569—Arrangements for system physical machines management, i.e. for construction operations control, administration, maintenance
    • H04B7/18571—Arrangements for system physical machines management, i.e. for construction operations control, administration, maintenance for satellites; for fixed or mobile stations
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Transceivers (AREA)
  • Details Of Aerials (AREA)
  • Amplifiers (AREA)
FI960283A 1995-08-03 1996-01-19 Förfarande och anordning för att förbättra antennverkningsgrad för en mobil satellitkommunikationsterminal FI960283A (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/509,754 US5581268A (en) 1995-08-03 1995-08-03 Method and apparatus for increasing antenna efficiency for hand-held mobile satellite communications terminal

Publications (2)

Publication Number Publication Date
FI960283A0 true FI960283A0 (sv) 1996-01-19
FI960283A FI960283A (sv) 1997-02-04

Family

ID=24027958

Family Applications (1)

Application Number Title Priority Date Filing Date
FI960283A FI960283A (sv) 1995-08-03 1996-01-19 Förfarande och anordning för att förbättra antennverkningsgrad för en mobil satellitkommunikationsterminal

Country Status (10)

Country Link
US (1) US5581268A (sv)
EP (1) EP0757406A1 (sv)
JP (1) JPH0951227A (sv)
KR (1) KR970013508A (sv)
CN (1) CN1142695A (sv)
AU (1) AU4749896A (sv)
CA (1) CA2167427A1 (sv)
FI (1) FI960283A (sv)
TW (1) TW282585B (sv)
WO (1) WO1997006577A1 (sv)

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US5872549A (en) * 1996-04-30 1999-02-16 Trw Inc. Feed network for quadrifilar helix antenna
US6278414B1 (en) * 1996-07-31 2001-08-21 Qualcomm Inc. Bent-segment helical antenna
US5986620A (en) * 1996-07-31 1999-11-16 Qualcomm Incorporated Dual-band coupled segment helical antenna
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US5909196A (en) * 1996-12-20 1999-06-01 Ericsson Inc. Dual frequency band quadrifilar helix antenna systems and methods
US5896113A (en) * 1996-12-20 1999-04-20 Ericsson Inc. Quadrifilar helix antenna systems and methods for broadband operation in separate transmit and receive frequency bands
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ATE365986T1 (de) * 1997-03-27 2007-07-15 Qualcomm Inc Ein substrat für eine wendelantenne und verfahren zur herstellung der antenne
US6184844B1 (en) * 1997-03-27 2001-02-06 Qualcomm Incorporated Dual-band helical antenna
US6201511B1 (en) * 1997-04-18 2001-03-13 Ericsson Inc. Composite antenna for duplexer-free duplex operation terminals and method
US6002359A (en) * 1997-06-13 1999-12-14 Trw Inc. Antenna system for satellite digital audio radio service (DARS) system
US6049315A (en) * 1997-07-01 2000-04-11 Lucent Technologies, Inc. Repeater isolation through antenna polarization diversity
FR2765732B1 (fr) * 1997-07-04 1999-08-27 France Telecom Antenne en helice variable
FI113814B (sv) 1997-11-27 2004-06-15 Nokia Corp Mångtrådiga helixantenner
US6657978B1 (en) * 1998-04-23 2003-12-02 Transworld Communications (Usa), Inc. Optimized integrated high capacity digital satellite trunking network
JP2000059120A (ja) * 1998-08-12 2000-02-25 Sony Corp アンテナ装置及び携帯無線機
JP2000138523A (ja) 1998-10-30 2000-05-16 Nec Corp ヘリカルアンテナ
DE60027491T2 (de) * 1999-01-19 2006-12-07 Koninklijke Philips Electronics N.V. Antennenanordnung für mobiles Satellitentelefon und Mobiltelefon mit dieser Antennenanordnung
JP2001102852A (ja) * 1999-09-29 2001-04-13 Nippon Antenna Co Ltd ヘリカルアンテナ
US6889061B2 (en) 2000-01-27 2005-05-03 Celletra Ltd. System and method for providing polarization matching on a cellular communication forward link
US6466177B1 (en) 2001-07-25 2002-10-15 Novatel, Inc. Controlled radiation pattern array antenna using spiral slot array elements
US6788272B2 (en) * 2002-09-23 2004-09-07 Andrew Corp. Feed network
US7372427B2 (en) 2003-03-28 2008-05-13 Sarentel Limited Dielectrically-loaded antenna
US6961596B2 (en) * 2003-04-21 2005-11-01 3Com Corporation Modular RF antenna and filter system for dual radio WLAN access points
US7843392B2 (en) * 2008-07-18 2010-11-30 General Dynamics C4 Systems, Inc. Dual frequency antenna system
US8058940B1 (en) * 2008-10-24 2011-11-15 Silicon Laboratories Inc. Dual in-situ mixing for extended tuning range of resonators
US8604925B2 (en) * 2009-10-23 2013-12-10 Globalstar, Inc. Simplex personal and asset tracker
US8384545B2 (en) 2009-12-07 2013-02-26 Meps Real-Time, Inc. System and method of identifying tagged articles
US9013307B2 (en) 2009-12-07 2015-04-21 Meps Real-Time, Inc. Self-contained RFID-enabled drawer module
US11954551B2 (en) 2009-12-07 2024-04-09 Meps Real-Time, Inc. Modular system and method to establish tracking activation field
US9189769B2 (en) 2009-12-07 2015-11-17 Meps Real-Time, Inc. Real-time inventory re-supply system
US9135482B2 (en) 2009-12-07 2015-09-15 Meps Real-Time, Inc. Mobile dispensing system for medical articles
US8676121B1 (en) 2011-05-31 2014-03-18 Globalstar, Inc. Method and apparatus for transmitting message from short-range wireless device over a satellite network
CA3038195A1 (en) 2012-03-19 2013-09-26 Robert K. Buckle Apparatus, method, and system for integrating mobile and satellite phone service
SG11201607413VA (en) 2014-03-07 2016-10-28 Globalstar Inc Cell tower functionality with satellite access to allow a cell device to roam on a satellite network
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US10187141B2 (en) 2015-04-10 2019-01-22 Viasat, Inc. Cross-band system for end-to-end beamforming
CN106848606B (zh) * 2016-12-29 2021-01-05 上海华为技术有限公司 一种天线系统
CN109103587B (zh) * 2018-08-06 2024-01-05 上海海积信息科技股份有限公司 一种四臂螺旋天线
WO2020252098A1 (en) * 2019-06-13 2020-12-17 Avx Antenna, Inc. D/B/A Ethertronics, Inc. Antenna assembly having a helical antenna disposed on a flexible substrate wrapped around a tube structure

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Also Published As

Publication number Publication date
CN1142695A (zh) 1997-02-12
WO1997006577A1 (en) 1997-02-20
US5581268A (en) 1996-12-03
AU4749896A (en) 1997-03-05
FI960283A (sv) 1997-02-04
EP0757406A1 (en) 1997-02-05
TW282585B (en) 1996-08-01
CA2167427A1 (en) 1997-02-04
KR970013508A (ko) 1997-03-29
JPH0951227A (ja) 1997-02-18

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