GB1375680A - - Google Patents

Info

Publication number
GB1375680A
GB1375680A GB3871973A GB3871973A GB1375680A GB 1375680 A GB1375680 A GB 1375680A GB 3871973 A GB3871973 A GB 3871973A GB 3871973 A GB3871973 A GB 3871973A GB 1375680 A GB1375680 A GB 1375680A
Authority
GB
United Kingdom
Prior art keywords
directors
reflector
diode
parasitic
elements
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
GB3871973A
Other languages
English (en)
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 filed Critical
Publication of GB1375680A publication Critical patent/GB1375680A/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
    • H01Q19/12—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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • 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
    • H01Q3/44—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
    • H01Q3/446—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element the radiating element being at the centre of one or more rings of auxiliary elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
GB3871973A 1972-08-16 1973-08-16 Expired GB1375680A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7229274A FR2196527B1 (ja) 1972-08-16 1972-08-16

Publications (1)

Publication Number Publication Date
GB1375680A true GB1375680A (ja) 1974-11-27

Family

ID=9103233

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3871973A Expired GB1375680A (ja) 1972-08-16 1973-08-16

Country Status (7)

Country Link
US (1) US3846799A (ja)
JP (1) JPS49124948A (ja)
AU (1) AU5921373A (ja)
DE (1) DE2341111A1 (ja)
FR (1) FR2196527B1 (ja)
GB (1) GB1375680A (ja)
NL (1) NL7311173A (ja)

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CA1239223A (en) * 1984-07-02 1988-07-12 Robert Milne Adaptive array antenna
FR2602614B1 (fr) * 1986-08-08 1989-01-13 Thomson Csf Antenne d'emission capable de tirer selon plusieurs axes
FR2655778B1 (fr) * 1989-12-08 1993-12-03 Thomson Csf Antenne iff aeroportee a diagrammes multiples commutables.
SE514000C2 (sv) * 1992-04-29 2000-12-11 Telia Ab Förfarande och anordning för att minska fädningen mellan basstation och mobila enheter
US6542481B2 (en) 1998-06-01 2003-04-01 Tantivy Communications, Inc. Dynamic bandwidth allocation for multiple access communication using session queues
US6081536A (en) 1997-06-20 2000-06-27 Tantivy Communications, Inc. Dynamic bandwidth allocation to transmit a wireless protocol across a code division multiple access (CDMA) radio link
US8175120B2 (en) 2000-02-07 2012-05-08 Ipr Licensing, Inc. Minimal maintenance link to support synchronization
US6222832B1 (en) 1998-06-01 2001-04-24 Tantivy Communications, Inc. Fast Acquisition of traffic channels for a highly variable data rate reverse link of a CDMA wireless communication system
US7394791B2 (en) 1997-12-17 2008-07-01 Interdigital Technology Corporation Multi-detection of heartbeat to reduce error probability
US7936728B2 (en) 1997-12-17 2011-05-03 Tantivy Communications, Inc. System and method for maintaining timing of synchronization messages over a reverse link of a CDMA wireless communication system
US9525923B2 (en) 1997-12-17 2016-12-20 Intel Corporation Multi-detection of heartbeat to reduce error probability
US7773566B2 (en) 1998-06-01 2010-08-10 Tantivy Communications, Inc. System and method for maintaining timing of synchronization messages over a reverse link of a CDMA wireless communication system
US8134980B2 (en) 1998-06-01 2012-03-13 Ipr Licensing, Inc. Transmittal of heartbeat signal at a lower level than heartbeat request
US7221664B2 (en) 1998-06-01 2007-05-22 Interdigital Technology Corporation Transmittal of heartbeat signal at a lower level than heartbeat request
US6989797B2 (en) * 1998-09-21 2006-01-24 Ipr Licensing, Inc. Adaptive antenna for use in wireless communication systems
US6933887B2 (en) * 1998-09-21 2005-08-23 Ipr Licensing, Inc. Method and apparatus for adapting antenna array using received predetermined signal
US6792290B2 (en) * 1998-09-21 2004-09-14 Ipr Licensing, Inc. Method and apparatus for performing directional re-scan of an adaptive antenna
US6600456B2 (en) 1998-09-21 2003-07-29 Tantivy Communications, Inc. Adaptive antenna for use in wireless communication systems
US6473036B2 (en) 1998-09-21 2002-10-29 Tantivy Communications, Inc. Method and apparatus for adapting antenna array to reduce adaptation time while increasing array performance
JP2001036337A (ja) * 1999-03-05 2001-02-09 Matsushita Electric Ind Co Ltd アンテナ装置
WO2000065372A2 (en) 1999-04-27 2000-11-02 Brian De Champlain Single receiver wireless tracking system
US6683567B2 (en) * 2000-07-18 2004-01-27 Brian De Champlain Single receiver wireless tracking system
US6515635B2 (en) 2000-09-22 2003-02-04 Tantivy Communications, Inc. Adaptive antenna for use in wireless communication systems
US8155096B1 (en) 2000-12-01 2012-04-10 Ipr Licensing Inc. Antenna control system and method
US7551663B1 (en) 2001-02-01 2009-06-23 Ipr Licensing, Inc. Use of correlation combination to achieve channel detection
US6954448B2 (en) 2001-02-01 2005-10-11 Ipr Licensing, Inc. Alternate channel for carrying selected message types
US6864852B2 (en) * 2001-04-30 2005-03-08 Ipr Licensing, Inc. High gain antenna for wireless applications
US6774852B2 (en) * 2001-05-10 2004-08-10 Ipr Licensing, Inc. Folding directional antenna
US6762722B2 (en) * 2001-05-18 2004-07-13 Ipr Licensing, Inc. Directional antenna
ES2626289T3 (es) 2001-06-13 2017-07-24 Intel Corporation Método y aparatos para la transmisión de señal de latido a un nivel más bajo que la solicitud de latido
US6876337B2 (en) * 2001-07-30 2005-04-05 Toyon Research Corporation Small controlled parasitic antenna system and method for controlling same to optimally improve signal quality
US7038626B2 (en) * 2002-01-23 2006-05-02 Ipr Licensing, Inc. Beamforming using a backplane and passive antenna element
US6888504B2 (en) * 2002-02-01 2005-05-03 Ipr Licensing, Inc. Aperiodic array antenna
AU2003222263A1 (en) * 2002-03-08 2003-09-22 Ipr Licensing, Inc. Adaptive receive and omnidirectional transmit antenna array
US6876331B2 (en) * 2002-03-14 2005-04-05 Ipr Licensing, Inc. Mobile communication handset with adaptive antenna array
US7453413B2 (en) * 2002-07-29 2008-11-18 Toyon Research Corporation Reconfigurable parasitic control for antenna arrays and subarrays
US7138956B2 (en) * 2002-11-14 2006-11-21 Wifi-Plus, Inc. Apparatus and method for a multi-polarized ground plane beam antenna
US7103386B2 (en) * 2003-06-19 2006-09-05 Ipr Licensing, Inc. Antenna steering and hidden node recognition for an access point
US7609648B2 (en) * 2003-06-19 2009-10-27 Ipr Licensing, Inc. Antenna steering for an access point based upon control frames
US7047046B2 (en) * 2003-06-19 2006-05-16 Ipr Licensing, Inc. Antenna steering for an access point based upon probe signals
US7587173B2 (en) * 2003-06-19 2009-09-08 Interdigital Technology Corporation Antenna steering for an access point based upon spatial diversity
US6972729B2 (en) * 2003-06-20 2005-12-06 Wang Electro-Opto Corporation Broadband/multi-band circular array antenna
US7239288B2 (en) * 2003-09-30 2007-07-03 Ipr Licensing, Inc. Access point antenna for a wireless local area network
US7340254B2 (en) * 2004-02-05 2008-03-04 Interdigital Technology Corporation Measurement opportunities for a mobile unit operating with a switched beam antenna in a CDMA system
US7308264B2 (en) * 2004-02-05 2007-12-11 Interdigital Technology Corporation Method for identifying pre-candidate cells for a mobile unit operating with a switched beam antenna in a wireless communication system, and corresponding system
US7295811B2 (en) * 2004-02-05 2007-11-13 Interdigital Technology Corporation Method for performing measurements for handoff of a mobile unit operating with a switched beam antenna in a wireless communication system, and corresponding system
US7324817B2 (en) * 2004-02-07 2008-01-29 Interdigital Technology Corporation Wireless communication method and apparatus for selecting and reselecting cells based on measurements performed using directional beams and an omni-directional beam pattern
US7236759B2 (en) * 2004-03-17 2007-06-26 Interdigital Technology Corporation Method for steering smart antenna beams for a WLAN using signal and link quality metrics
US7200376B2 (en) * 2004-03-17 2007-04-03 Interdigital Technology Corporation Method for steering smart antenna beams for a WLAN using MAC layer functions
US7181182B2 (en) * 2004-03-17 2007-02-20 Interdigital Technology Corporation Method for steering a smart antenna for a WLAN using a self-monitored re-scan
US7289828B2 (en) * 2004-03-17 2007-10-30 Interdigital Technology Corporation Method for steering a smart antenna for a WLAN using a periodic re-scan
US7633442B2 (en) * 2004-06-03 2009-12-15 Interdigital Technology Corporation Satellite communication subscriber device with a smart antenna and associated method
US7366464B2 (en) * 2004-06-04 2008-04-29 Interdigital Technology Corporation Access point operating with a smart antenna in a WLAN and associated methods
US7403160B2 (en) * 2004-06-17 2008-07-22 Interdigital Technology Corporation Low profile smart antenna for wireless applications and associated methods
US7482981B2 (en) * 2004-07-29 2009-01-27 Interdigital Technology Corporation Corona wind antennas and related methods
WO2006015121A2 (en) * 2004-07-29 2006-02-09 Interdigital Technology Corporation Multi-mode input impedance matching for smart antennas and associated methods
US7224321B2 (en) * 2004-07-29 2007-05-29 Interdigital Technology Corporation Broadband smart antenna and associated methods
US7180465B2 (en) * 2004-08-13 2007-02-20 Interdigital Technology Corporation Compact smart antenna for wireless applications and associated methods
US7428408B2 (en) * 2004-09-20 2008-09-23 Interdigital Technology Corporation Method for operating a smart antenna in a WLAN using medium access control information
EP1729146A1 (en) * 2005-06-01 2006-12-06 BAE SYSTEMS (Defence Systems) Limited Direction finder antenna receiver system
JP2009094696A (ja) * 2007-10-05 2009-04-30 National Institute Of Information & Communication Technology セクタアンテナ
US8698675B2 (en) 2009-05-12 2014-04-15 Ruckus Wireless, Inc. Mountable antenna elements for dual band antenna
US9407012B2 (en) 2010-09-21 2016-08-02 Ruckus Wireless, Inc. Antenna with dual polarization and mountable antenna elements
US9570799B2 (en) * 2012-09-07 2017-02-14 Ruckus Wireless, Inc. Multiband monopole antenna apparatus with ground plane aperture
EP2974045A4 (en) 2013-03-15 2016-11-09 Ruckus Wireless Inc LOWBAND REFLECTOR FOR A DIRECTED DOUBLE BELT ANTENNA
EP3888184A2 (en) * 2018-11-29 2021-10-06 Smartsky Networks Llc Monopole antenna assembly with directive-reflective control
CN116068285A (zh) * 2022-12-28 2023-05-05 中国电信股份有限公司卫星通信分公司 卫星天线入网测试方法、装置及非易失性存储介质

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US1860123A (en) * 1925-12-29 1932-05-24 Rca Corp Variable directional electric wave generating device
NL46871C (ja) * 1936-01-14
US3560978A (en) * 1968-11-01 1971-02-02 Itt Electronically controlled antenna system
US3725938A (en) * 1970-10-05 1973-04-03 Sperry Rand Corp Direction finder system

Also Published As

Publication number Publication date
FR2196527A1 (ja) 1974-03-15
AU5921373A (en) 1975-02-20
JPS49124948A (ja) 1974-11-29
DE2341111A1 (de) 1974-02-28
NL7311173A (ja) 1974-02-19
US3846799A (en) 1974-11-05
FR2196527B1 (ja) 1977-01-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee