FR2022375B1 - - Google Patents

Info

Publication number
FR2022375B1
FR2022375B1 FR6937446A FR6937446A FR2022375B1 FR 2022375 B1 FR2022375 B1 FR 2022375B1 FR 6937446 A FR6937446 A FR 6937446A FR 6937446 A FR6937446 A FR 6937446A FR 2022375 B1 FR2022375 B1 FR 2022375B1
Authority
FR
France
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
FR6937446A
Other languages
French (fr)
Other versions
FR2022375A1 (es
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of FR2022375A1 publication Critical patent/FR2022375A1/fr
Application granted granted Critical
Publication of FR2022375B1 publication Critical patent/FR2022375B1/fr
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
    • H01Q19/28—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 a secondary device in the form of two or more substantially straight conductive elements
    • 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)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Aerials With Secondary Devices (AREA)
  • Details Of Aerials (AREA)
FR6937446A 1968-11-01 1969-10-31 Expired FR2022375B1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77268668A 1968-11-01 1968-11-01

Publications (2)

Publication Number Publication Date
FR2022375A1 FR2022375A1 (es) 1970-07-31
FR2022375B1 true FR2022375B1 (es) 1975-08-22

Family

ID=25095865

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6937446A Expired FR2022375B1 (es) 1968-11-01 1969-10-31

Country Status (9)

Country Link
US (1) US3560978A (es)
JP (1) JPS4932239B1 (es)
BE (1) BE749080A (es)
BR (1) BR6913783D0 (es)
DE (1) DE1953443C3 (es)
ES (1) ES373060A1 (es)
FR (1) FR2022375B1 (es)
GB (1) GB1275579A (es)
SE (1) SE355270B (es)

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US7394791B2 (en) * 1997-12-17 2008-07-01 Interdigital Technology 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
US7221664B2 (en) 1998-06-01 2007-05-22 Interdigital Technology Corporation Transmittal of heartbeat signal at a lower level than heartbeat request
US8134980B2 (en) * 1998-06-01 2012-03-13 Ipr Licensing, Inc. Transmittal of heartbeat signal at a lower level than heartbeat request
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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
US6933887B2 (en) * 1998-09-21 2005-08-23 Ipr Licensing, Inc. Method and apparatus for adapting antenna array using received predetermined signal
JP2001036337A (ja) * 1999-03-05 2001-02-09 Matsushita Electric Ind Co Ltd アンテナ装置
JP3672770B2 (ja) 1999-07-08 2005-07-20 株式会社国際電気通信基礎技術研究所 アレーアンテナ装置
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US6954448B2 (en) 2001-02-01 2005-10-11 Ipr Licensing, Inc. Alternate channel for carrying selected message types
US7551663B1 (en) 2001-02-01 2009-06-23 Ipr Licensing, Inc. Use of correlation combination to achieve channel detection
US7031652B2 (en) 2001-02-05 2006-04-18 Soma Networks, Inc. Wireless local loop antenna
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US6606057B2 (en) * 2001-04-30 2003-08-12 Tantivy Communications, Inc. High gain planar scanned antenna array
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
US6545646B2 (en) * 2001-07-16 2003-04-08 Xerox Corporation Integrated dipole detector for microwave imaging
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
US6888504B2 (en) * 2002-02-01 2005-05-03 Ipr Licensing, Inc. Aperiodic array antenna
US6987493B2 (en) * 2002-04-15 2006-01-17 Paratek Microwave, Inc. Electronically steerable passive array antenna
US7276990B2 (en) * 2002-05-15 2007-10-02 Hrl Laboratories, Llc Single-pole multi-throw switch having low parasitic reactance, and an antenna incorporating the same
US7298228B2 (en) * 2002-05-15 2007-11-20 Hrl Laboratories, Llc Single-pole multi-throw switch having low parasitic reactance, and an antenna incorporating the same
US7453413B2 (en) * 2002-07-29 2008-11-18 Toyon Research Corporation Reconfigurable parasitic control for antenna arrays and subarrays
US7164387B2 (en) * 2003-05-12 2007-01-16 Hrl Laboratories, Llc Compact tunable antenna
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US7154451B1 (en) 2004-09-17 2006-12-26 Hrl Laboratories, Llc Large aperture rectenna based on planar lens structures
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US7245269B2 (en) * 2003-05-12 2007-07-17 Hrl Laboratories, Llc Adaptive beam forming antenna system using a tunable impedance surface
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JP4270278B2 (ja) * 2004-09-03 2009-05-27 株式会社村田製作所 アンテナ装置
JP4205758B2 (ja) * 2005-12-21 2009-01-07 パナソニック株式会社 指向性可変アンテナ
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GB2447984A (en) * 2007-03-30 2008-10-01 Iti Scotland Ltd A parasitic element with switches for a directional, ultra-wideband, antenna
US7868829B1 (en) 2008-03-21 2011-01-11 Hrl Laboratories, Llc Reflectarray
US8063847B2 (en) * 2008-04-10 2011-11-22 Pctel, Inc. Multi-band antenna
US8525748B2 (en) * 2008-07-08 2013-09-03 Panasonic Corporation Variable directivity antenna apparatus provided with antenna elements and at least one parasitic element connected to ground via controlled switch
US8421684B2 (en) 2009-10-01 2013-04-16 Qualcomm Incorporated Methods and apparatus for beam steering using steerable beam antennas with switched parasitic elements
US8830132B1 (en) 2010-03-23 2014-09-09 Rockwell Collins, Inc. Parasitic antenna array design for microwave frequencies
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US9466887B2 (en) 2010-11-03 2016-10-11 Hrl Laboratories, Llc Low cost, 2D, electronically-steerable, artificial-impedance-surface antenna
US8994609B2 (en) 2011-09-23 2015-03-31 Hrl Laboratories, Llc Conformal surface wave feed
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KR101390168B1 (ko) * 2013-11-22 2014-05-07 한국공항공사 전자식 스캔 tacan 안테나
US9935371B2 (en) * 2016-04-29 2018-04-03 Hewlett Packard Enterprise Development Lp Antennas

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FR1380255A (fr) * 1963-11-25 1964-11-27 Granger Associates Système d'antenne orientable à réflecteurs
US3334348A (en) * 1966-11-25 1967-08-01 Granger Associates Steerable monopole antenna system having a plurality of reflectors, said reflectors comprising a series of tubular vacuum switches

Also Published As

Publication number Publication date
BR6913783D0 (pt) 1973-01-02
US3560978A (en) 1971-02-02
JPS4932239B1 (es) 1974-08-28
ES373060A1 (es) 1971-11-16
DE1953443A1 (de) 1970-05-27
SE355270B (es) 1973-04-09
DE1953443C3 (de) 1974-04-18
BE749080A (fr) 1970-10-19
FR2022375A1 (es) 1970-07-31
DE1953443B2 (de) 1973-09-13
GB1275579A (en) 1972-05-24

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Legal Events

Date Code Title Description
ST Notification of lapse