ATE121226T1 - Abstimmbare hochfrequenz-antenne. - Google Patents

Abstimmbare hochfrequenz-antenne.

Info

Publication number
ATE121226T1
ATE121226T1 AT90203008T AT90203008T ATE121226T1 AT E121226 T1 ATE121226 T1 AT E121226T1 AT 90203008 T AT90203008 T AT 90203008T AT 90203008 T AT90203008 T AT 90203008T AT E121226 T1 ATE121226 T1 AT E121226T1
Authority
AT
Austria
Prior art keywords
antenna
frequency
switches
tuning
length
Prior art date
Application number
AT90203008T
Other languages
English (en)
Inventor
Der Vis Pieter Anthonie Van
Original Assignee
Tno
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 Tno filed Critical Tno
Application granted granted Critical
Publication of ATE121226T1 publication Critical patent/ATE121226T1/de

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/06—Details
    • H01Q9/14—Length of element or elements adjustable
    • H01Q9/145—Length of element or elements adjustable by varying the electrical length
    • 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
    • H01Q11/12—Resonant antennas
    • H01Q11/14—Resonant antennas with parts bent, folded, shaped or screened or with phasing impedances, to obtain desired phase relation of radiation from selected sections of the antenna or to obtain desired polarisation effect
    • H01Q11/16—Resonant antennas with parts bent, folded, shaped or screened or with phasing impedances, to obtain desired phase relation of radiation from selected sections of the antenna or to obtain desired polarisation effect in which the selected sections are collinear
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/38—Impedance-matching networks
    • H03H7/40—Automatic matching of load impedance to source impedance

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
AT90203008T 1989-11-14 1990-11-13 Abstimmbare hochfrequenz-antenne. ATE121226T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8902812A NL8902812A (nl) 1989-11-14 1989-11-14 Zelfafstembare hoogfrequente antenne.

Publications (1)

Publication Number Publication Date
ATE121226T1 true ATE121226T1 (de) 1995-04-15

Family

ID=19855622

Family Applications (1)

Application Number Title Priority Date Filing Date
AT90203008T ATE121226T1 (de) 1989-11-14 1990-11-13 Abstimmbare hochfrequenz-antenne.

Country Status (6)

Country Link
US (1) US5187488A (de)
EP (1) EP0428229B1 (de)
AT (1) ATE121226T1 (de)
DE (1) DE69018569T2 (de)
ES (1) ES2072378T3 (de)
NL (1) NL8902812A (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5812066A (en) * 1995-08-16 1998-09-22 Terk Technologies Corporation Antenna tuning control circuit
US6393264B1 (en) * 1995-09-15 2002-05-21 Siemens Aktiengesellschaft Radio terminal apparatus
US5764195A (en) * 1996-07-24 1998-06-09 Hazeltine Corporation UHF/VHF multifunction ocean antenna system
US6466131B1 (en) * 1996-07-30 2002-10-15 Micron Technology, Inc. Radio frequency data communications device with adjustable receiver sensitivity and method
JP3098430B2 (ja) * 1996-08-30 2000-10-16 埼玉日本電気株式会社 携帯無線機用ヘリカルアンテナ
FR2759497A1 (fr) * 1997-02-07 1998-08-14 Thomson Csf Antenne a geometrie variable
FR2759498B1 (fr) * 1997-02-07 1999-08-27 Thomson Csf Antenne a geometrie variable
US6005530A (en) * 1997-10-31 1999-12-21 Intermec Ip Corp. Switched gain antenna for enhanced system performance
US6075330A (en) * 1997-11-07 2000-06-13 Terk Technologies Corp. Outdoor antenna system with remote control and method for optimizing antenna function
DE19833271A1 (de) * 1998-07-24 2000-01-27 Werner Arnold Digitale Steuerung der Empfangsebene bei Satellitenantennen
WO2000051204A1 (en) * 1999-02-22 2000-08-31 Intermec Ip Corp. Switched gain antenna for enhanced system performance
DE19955950A1 (de) 1999-11-19 2001-06-13 Daimler Chrysler Ag Antennensystem
US6806812B1 (en) * 2000-04-26 2004-10-19 Micron Technology, Inc. Automated antenna trim for transmitting and receiving semiconductor devices
US6791504B1 (en) 2003-03-12 2004-09-14 R. A. Miller Industries, Inc. Tunable antenna system
US7199763B2 (en) * 2004-05-03 2007-04-03 Lockheed Martin Corporation Ground proximity antenna system
CN101401302A (zh) 2006-03-09 2009-04-01 Nxp股份有限公司 无线电接收机
US20080123568A1 (en) * 2006-09-26 2008-05-29 Broadcom Corporation, A California Corporation Cable modem with wireless voice-over-IP phone and methods for use therewith
US20080076354A1 (en) * 2006-09-26 2008-03-27 Broadcom Corporation, A California Corporation Cable modem with programmable antenna and methods for use therewith
FI20086035A0 (fi) * 2008-11-03 2008-11-03 Pulse Finland Oy Viritettävä antenni ja antennin viritysjärjestelmä
CN102196205A (zh) * 2010-03-15 2011-09-21 华硕电脑股份有限公司 数字电视的差动式天线及其电路控制系统
TW201132119A (en) * 2010-03-15 2011-09-16 Asustek Comp Inc Differential antenna and associated circuit control system applied to digital television
RU2756707C1 (ru) * 2020-09-16 2021-10-04 Общество с ограниченной ответственностью "ОКБ "Эланор" Антенна декаметрового диапазона с плавной механической перестройкой размеров излучателя внутри радиопрозрачной мачты
CN115622533B (zh) * 2022-12-01 2023-03-21 深圳市恒运昌真空技术有限公司 一种阻抗匹配系统及方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR210416A (de) * 1925-10-07
GB1053308A (de) * 1963-06-29 1900-01-01
DE1949556A1 (de) * 1969-10-01 1971-04-15 Bechtold Wolfgang Dipl Ing Antenne mit elektromechanischen Abstimmelementen
US3716867A (en) * 1970-08-11 1973-02-13 P Mayes Wire antenna multiply-loaded with active element impedances
US4201990A (en) * 1975-04-21 1980-05-06 Hustler, Inc. Tunable dipole antenna
JPS5673904A (en) * 1979-11-20 1981-06-19 Matsushita Electric Ind Co Ltd Antenna device
GB2100932B (en) * 1981-06-18 1986-06-11 Charles Edward Cooper Antenna.
GB2113922B (en) * 1982-01-09 1985-07-03 British Aerospace Antennae
US4486722A (en) * 1982-02-18 1984-12-04 Rockwell International Corporation Pin diode switched impedance matching network having diode driver circuits transparent to RF potential
FR2552587B1 (fr) * 1983-09-28 1986-04-18 Dassault Avions Antenne commutable pour les gammes de frequences vhf et uhf

Also Published As

Publication number Publication date
US5187488A (en) 1993-02-16
DE69018569T2 (de) 1996-01-04
ES2072378T3 (es) 1995-07-16
EP0428229A1 (de) 1991-05-22
EP0428229B1 (de) 1995-04-12
NL8902812A (nl) 1991-06-03
DE69018569D1 (de) 1995-05-18

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties