FR2552587B1 - Antenne commutable pour les gammes de frequences vhf et uhf - Google Patents
Antenne commutable pour les gammes de frequences vhf et uhfInfo
- Publication number
- FR2552587B1 FR2552587B1 FR8315399A FR8315399A FR2552587B1 FR 2552587 B1 FR2552587 B1 FR 2552587B1 FR 8315399 A FR8315399 A FR 8315399A FR 8315399 A FR8315399 A FR 8315399A FR 2552587 B1 FR2552587 B1 FR 2552587B1
- Authority
- FR
- France
- Prior art keywords
- vhf
- frequency ranges
- uhf frequency
- switchable antenna
- switchable
- 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
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
- 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
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
- H01Q9/32—Vertical arrangement of element
- H01Q9/36—Vertical arrangement of element with top loading
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8315399A FR2552587B1 (fr) | 1983-09-28 | 1983-09-28 | Antenne commutable pour les gammes de frequences vhf et uhf |
DE19843433068 DE3433068A1 (de) | 1983-09-28 | 1984-09-08 | Umschaltbare antenne fuer vhf- und uhf-frequenzbereiche |
GB08423019A GB2147147B (en) | 1983-09-28 | 1984-09-12 | Switchable antenna for the vhf and uhf frequency bands |
US06/654,488 US4656483A (en) | 1983-09-28 | 1984-09-26 | Switchable antenna for the VHF and UHF frequency bands |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8315399A FR2552587B1 (fr) | 1983-09-28 | 1983-09-28 | Antenne commutable pour les gammes de frequences vhf et uhf |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2552587A1 FR2552587A1 (fr) | 1985-03-29 |
FR2552587B1 true FR2552587B1 (fr) | 1986-04-18 |
Family
ID=9292608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8315399A Expired FR2552587B1 (fr) | 1983-09-28 | 1983-09-28 | Antenne commutable pour les gammes de frequences vhf et uhf |
Country Status (4)
Country | Link |
---|---|
US (1) | US4656483A (fr) |
DE (1) | DE3433068A1 (fr) |
FR (1) | FR2552587B1 (fr) |
GB (1) | GB2147147B (fr) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4924238A (en) * | 1987-02-06 | 1990-05-08 | George Ploussios | Electronically tunable antenna |
US4806944A (en) * | 1987-09-14 | 1989-02-21 | General Electric Company | Switchable matching network for an element of a steerable antenna array |
US4939525A (en) * | 1988-03-31 | 1990-07-03 | Cincinnati Electronics Corporation | Tunable short monopole top-loaded antenna |
DE3920536C1 (fr) * | 1989-06-22 | 1991-01-17 | Texas Instruments Deutschland Gmbh, 8050 Freising, De | |
NL8902812A (nl) * | 1989-11-14 | 1991-06-03 | Tno | Zelfafstembare hoogfrequente antenne. |
US5081468A (en) * | 1990-06-13 | 1992-01-14 | Hughes Aircraft Company | Frequency agile triangular antenna |
DE4116232A1 (de) * | 1991-05-17 | 1992-11-19 | Hirschmann Richard Gmbh Co | Antennenanordnung |
DE4215659A1 (de) * | 1991-05-17 | 1992-12-10 | Hirschmann Richard Gmbh Co | Antennenanordnung |
FR2677513B1 (fr) * | 1991-06-06 | 1997-05-23 | Dassault Aviat | Dispositif de commutation electronique pour antenne commutable dans les gammes de frequences vhf et uhf. |
US5521607A (en) * | 1993-08-10 | 1996-05-28 | Rockwell International | Bandswitched electrically short tactical monopole antenna system |
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 |
US5754143A (en) * | 1996-10-29 | 1998-05-19 | Southwest Research Institute | Switch-tuned meandered-slot antenna |
JP3427668B2 (ja) * | 1997-04-01 | 2003-07-22 | 株式会社村田製作所 | アンテナ装置 |
TW578334B (en) * | 2000-07-14 | 2004-03-01 | Hon Hai Prec Ind Co Ltd | Planar printed antenna |
FR2812511B1 (fr) * | 2000-07-28 | 2003-04-11 | Sagem | Telephone multibande a antenne adaptee |
US6947005B2 (en) * | 2001-02-15 | 2005-09-20 | Integral Technologies, Inc. | Low cost antennas and electromagnetic (EMF) absorption in electronic circuit packages or transceivers using conductive loaded resin-based materials |
EP1329986A1 (fr) * | 2002-01-17 | 2003-07-23 | Calearo S.r.l. | Antenne compacte pour vehicule |
RU2003109150A (ru) * | 2003-03-31 | 2004-09-27 | Сергей Владимирович Никитин (RU) | Способ выявления поддельного товара |
UA68831A (en) * | 2003-11-06 | 2004-08-16 | Oleksandr Ivanovych Karpov | Wideband antenna |
WO2006062492A1 (fr) * | 2004-12-08 | 2006-06-15 | Alexandr Ivanovich Karpov | Antenne de petite taille |
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 |
US7898481B2 (en) * | 2008-01-08 | 2011-03-01 | Motorola Mobility, Inc. | Radio frequency system component with configurable anisotropic element |
IT1401585B1 (it) * | 2010-07-15 | 2013-07-26 | Clu Tech Srl | Dispositivo per la conversione di circuiti stampati in elementi radianti. |
KR101431724B1 (ko) * | 2011-06-23 | 2014-08-21 | 위너콤 주식회사 | 방사효율을 향상시키고 신호간섭을 방지하는 차량용 방송안테나 및 이를 내부에 구비하는 차량용 샤크핀 안테나 장치 |
JP5876863B2 (ja) * | 2013-12-11 | 2016-03-02 | 原田工業株式会社 | 複合アンテナ装置 |
JP6343230B2 (ja) * | 2013-12-11 | 2018-06-13 | 原田工業株式会社 | 複合アンテナ装置 |
US9363794B1 (en) * | 2014-12-15 | 2016-06-07 | Motorola Solutions, Inc. | Hybrid antenna for portable radio communication devices |
JP6971099B2 (ja) * | 2017-09-06 | 2021-11-24 | 株式会社ヨコオ | アンテナ装置 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA567569A (fr) * | 1958-12-16 | Minister Of Supply In His Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Antennes | |
GB682274A (en) * | 1950-05-10 | 1952-11-05 | Decca Record Co Ltd | Improvements in or relating to aircraft receiving antennae |
US2895129A (en) * | 1956-01-30 | 1959-07-14 | Gen Bronze Corp | Mobile radio antenna |
US3852759A (en) * | 1960-04-01 | 1974-12-03 | Itt | Broadband tunable antenna |
US3283327A (en) * | 1963-08-26 | 1966-11-01 | Stoddart Aircraft Radio Inc | Sheet type fin antenna having loop fed excitation |
US3534370A (en) * | 1968-08-09 | 1970-10-13 | Lockheed Aircraft Corp | Ferrite-loaded notch antenna |
US3907830A (en) * | 1970-05-27 | 1975-09-23 | Chinoin Gyogyszer Es Vegyeszet | Isoflavone derivatives |
DE2229193A1 (de) * | 1972-06-15 | 1974-02-14 | Messerschmitt Boelkow Blohm | Antenne fuer schnellfliegende fluggeraete |
US3909830A (en) * | 1974-05-17 | 1975-09-30 | Us Army | Tactical high frequency antenna |
US4072952A (en) * | 1976-10-04 | 1978-02-07 | The United States Of America As Represented By The Secretary Of The Army | Microwave landing system antenna |
US4117492A (en) * | 1977-07-26 | 1978-09-26 | The United States Of America As Represented By The Secretary Of The Army | Low profile remotely tuned dipole antenna |
US4343001A (en) * | 1980-10-24 | 1982-08-03 | Rockwell International Corporation | Digitally tuned electrically small antenna |
GB2100932B (en) * | 1981-06-18 | 1986-06-11 | Charles Edward Cooper | Antenna. |
-
1983
- 1983-09-28 FR FR8315399A patent/FR2552587B1/fr not_active Expired
-
1984
- 1984-09-08 DE DE19843433068 patent/DE3433068A1/de active Granted
- 1984-09-12 GB GB08423019A patent/GB2147147B/en not_active Expired
- 1984-09-26 US US06/654,488 patent/US4656483A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB2147147B (en) | 1987-05-28 |
GB8423019D0 (en) | 1984-10-17 |
DE3433068C2 (fr) | 1988-06-01 |
DE3433068A1 (de) | 1985-04-11 |
FR2552587A1 (fr) | 1985-03-29 |
US4656483A (en) | 1987-04-07 |
GB2147147A (en) | 1985-05-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2552587B1 (fr) | Antenne commutable pour les gammes de frequences vhf et uhf | |
JPS57185704A (en) | Circular polarized high frequency wave signal receiving or radiating element and antenna | |
DE3478653D1 (en) | Variable frequency rf electronic surveillance system | |
EP0115270A3 (en) | Frequency independent antenna | |
DE69326984D1 (de) | Antenne für mehrere Frequenzbereiche | |
GB8404638D0 (en) | Radio frequency transducer | |
GB2165098B (en) | Radio frequency filters | |
DE69334160D1 (de) | Empfänger für den digitalen Rundfunkempfang von zwei Frequenzbereichen | |
GB2244615B (en) | Radio frequency receiver | |
GB2169453B (en) | Radio frequency antenna system | |
FR2572592B1 (fr) | Antenne en nappe pour micro-ondes | |
EP0414567A3 (en) | Frequency modulated continuous wave radar receiver | |
FR2508713B1 (fr) | Antenne interieure permettant la reception de bandes de tres haute frequence et d'hyperfrequence | |
DE3271093D1 (en) | Antenna apparatus including frequency separator having wide band transmission or reflection characteristics | |
FR2567685B1 (fr) | Antenne plane pour micro-ondes | |
FR2677513B1 (fr) | Dispositif de commutation electronique pour antenne commutable dans les gammes de frequences vhf et uhf. | |
ES534134A0 (es) | Dispositivo de sintonizacion de radiofrecuencia | |
GB8308098D0 (en) | Tuning system for radio frequency receiver | |
GB9016564D0 (en) | Radio frequency shielding | |
EP0425097A3 (en) | Frequency hopping receiver comprising amplifier with switchable time-constant | |
FR2543744B3 (fr) | Antenne pour auto-radio | |
GB2132022B (en) | Radio frequency antenna and radio direction finding apparatus incorporating such antenna | |
BR8505308A (pt) | Transdutor de antena para pelo menos duas faixas de frequencia distintas | |
ZA844168B (en) | Tuning circuit for the uhf and vhf ranges | |
GB2167626B (en) | Radio frequency antenna systems |