FR2120146A1 - - Google Patents

Info

Publication number
FR2120146A1
FR2120146A1 FR7147534A FR7147534A FR2120146A1 FR 2120146 A1 FR2120146 A1 FR 2120146A1 FR 7147534 A FR7147534 A FR 7147534A FR 7147534 A FR7147534 A FR 7147534A FR 2120146 A1 FR2120146 A1 FR 2120146A1
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.)
Granted
Application number
FR7147534A
Other languages
French (fr)
Other versions
FR2120146B1 (en
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 FR2120146A1 publication Critical patent/FR2120146A1/fr
Application granted granted Critical
Publication of FR2120146B1 publication Critical patent/FR2120146B1/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
FR7147534A 1970-12-30 1971-12-30 Expired FR2120146B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10272470A 1970-12-30 1970-12-30

Publications (2)

Publication Number Publication Date
FR2120146A1 true FR2120146A1 (en) 1972-08-11
FR2120146B1 FR2120146B1 (en) 1975-08-29

Family

ID=22291363

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7147534A Expired FR2120146B1 (en) 1970-12-30 1971-12-30

Country Status (4)

Country Link
US (1) US3689928A (en)
AU (1) AU465735B2 (en)
DE (1) DE2164869A1 (en)
FR (1) FR2120146B1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3909830A (en) * 1974-05-17 1975-09-30 Us Army Tactical high frequency antenna
US4117493A (en) * 1976-12-22 1978-09-26 New-Tronics Corp. Radio antenna
US4229743A (en) * 1978-09-22 1980-10-21 Shakespeare Company Multiple band, multiple resonant frequency antenna
US4224625A (en) * 1979-04-24 1980-09-23 Elbit Computers Ltd. Antenna
US4335469A (en) * 1980-06-18 1982-06-15 Westinghouse Electric Corp. Method and system for radiating RF power from a trailing wire antenna
US5016022A (en) * 1981-09-14 1991-05-14 The United States Of America As Represented By The Secretary Of The Navy Monopole inductively loaded antenna tuning system
US4494122A (en) * 1982-12-22 1985-01-15 Motorola, Inc. Antenna apparatus capable of resonating at two different frequencies
US4755345A (en) * 1986-08-01 1988-07-05 The United States Of America As Represented By The United States Department Of Energy Impedance matched, high-power, rf antenna for ion cyclotron resonance heating of a plasma
US7072620B2 (en) * 2003-04-03 2006-07-04 Kyocera Wireless Corp. System and method for regulating antenna electrical length
US7782264B1 (en) * 2006-03-28 2010-08-24 The Board Of Governors For Higher Education, State Of Rhode Island And Providence Plantations Systems and methods for providing distributed load monopole antenna systems
US9130274B1 (en) 2007-03-22 2015-09-08 Board Of Education, State Of Rhode Island And Providence Plantations Systems and methods for providing distributed load monopole antenna systems
US11063625B2 (en) 2008-08-14 2021-07-13 Theodore S. Rappaport Steerable antenna device
US8350763B2 (en) * 2008-08-14 2013-01-08 Rappaport Theodore S Active antennas for multiple bands in wireless portable devices

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR899934A (en) * 1942-03-16 1945-06-14 Loewe Opta Gmbh Antenna installation for devices emitting or receiving electromagnetic radiation
US2875443A (en) * 1954-06-21 1959-02-24 Itt Antenna
US3390337A (en) * 1966-03-15 1968-06-25 Avco Corp Band changing and automatic tuning apparatus for transmitter tau-pad output filter
US3445849A (en) * 1966-02-14 1969-05-20 Rca Corp Half wavelength monopole antenna with spaced loading coils
US3475703A (en) * 1967-12-11 1969-10-28 Collins Radio Co Coarse step-fine tune automatically tunable antenna

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2993204A (en) * 1958-02-28 1961-07-18 Itt Two-band helical antenna
US3100893A (en) * 1960-11-30 1963-08-13 Helmut Brueckmann Broad band vertical antenna with adjustable impedance matching network

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR899934A (en) * 1942-03-16 1945-06-14 Loewe Opta Gmbh Antenna installation for devices emitting or receiving electromagnetic radiation
US2875443A (en) * 1954-06-21 1959-02-24 Itt Antenna
US3445849A (en) * 1966-02-14 1969-05-20 Rca Corp Half wavelength monopole antenna with spaced loading coils
US3390337A (en) * 1966-03-15 1968-06-25 Avco Corp Band changing and automatic tuning apparatus for transmitter tau-pad output filter
US3475703A (en) * 1967-12-11 1969-10-28 Collins Radio Co Coarse step-fine tune automatically tunable antenna

Also Published As

Publication number Publication date
AU3663871A (en) 1973-06-14
US3689928A (en) 1972-09-05
AU465735B2 (en) 1975-10-09
FR2120146B1 (en) 1975-08-29
DE2164869A1 (en) 1972-07-20

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Legal Events

Date Code Title Description
ST Notification of lapse