FR2445041B1 - - Google Patents
Info
- Publication number
- FR2445041B1 FR2445041B1 FR7931509A FR7931509A FR2445041B1 FR 2445041 B1 FR2445041 B1 FR 2445041B1 FR 7931509 A FR7931509 A FR 7931509A FR 7931509 A FR7931509 A FR 7931509A FR 2445041 B1 FR2445041 B1 FR 2445041B1
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
-
- 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
- H01Q3/005—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using remotely controlled antenna positioning or scanning
-
- 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
- H01Q3/24—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 orientation by switching energy from one active radiating element to another, e.g. for beam switching
- H01Q3/247—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 orientation by switching energy from one active radiating element to another, e.g. for beam switching by switching different parts of a primary active element
-
- 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
- H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
- H01Q9/265—Open ring dipoles; Circular dipoles
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15821978A JPS5585105A (en) | 1978-12-21 | 1978-12-21 | Desk top type antenna unit |
| JP15821878A JPS5585106A (en) | 1978-12-21 | 1978-12-21 | Antenna unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2445041A1 FR2445041A1 (fr) | 1980-07-18 |
| FR2445041B1 true FR2445041B1 (enExample) | 1984-10-19 |
Family
ID=26485415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7931509A Granted FR2445041A1 (fr) | 1978-12-21 | 1979-12-21 | Systeme d'antenne |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4338606A (enExample) |
| AU (1) | AU532289B2 (enExample) |
| CA (1) | CA1128654A (enExample) |
| DE (1) | DE2951875A1 (enExample) |
| FR (1) | FR2445041A1 (enExample) |
| GB (1) | GB2039152B (enExample) |
| NL (1) | NL192551C (enExample) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4349840A (en) * | 1980-11-25 | 1982-09-14 | Rca Corporation | Apparatus for automatically steering an electrically steerable television antenna |
| US4380011A (en) * | 1980-11-25 | 1983-04-12 | Rca Corporation | Loop antenna arrangement for inclusion in a television receiver |
| GB2100063B (en) * | 1981-06-05 | 1985-03-13 | Tokyo Shibaura Electric Co | Antenna |
| US5152010A (en) * | 1989-12-29 | 1992-09-29 | American Nucleonics Corporation | Highly directive radio receiver employing relatively small antennas |
| DE4220131C2 (de) * | 1992-06-21 | 1996-03-14 | Landstorfer Friedrich | Aktive Empfangsantenne für einen Empfang im Nahfeld in Form einer Leiterschleife, insb. einer strahlenden geschlitzten Koaxialleitung |
| USD365101S (en) | 1993-06-01 | 1995-12-12 | Sony Electronics Inc. | Combined universal remote control unit and stand |
| USD365102S (en) | 1993-06-01 | 1995-12-12 | Sony Electronics Inc. | Universal remote control unit |
| US5900842A (en) * | 1997-09-20 | 1999-05-04 | Lucent Technologies, Inc. | Inexpensive directional antenna that is easily tuned and weather resistant |
| DE19938862C1 (de) | 1999-08-17 | 2001-03-15 | Kathrein Werke Kg | Hochfrequenz-Phasenschieberbaugruppe |
| EP1219109A2 (en) * | 1999-09-08 | 2002-07-03 | Thomson Licensing S.A. | Method and apparatus for reducing multipath distortion in a television signal |
| US6911947B1 (en) | 1999-09-08 | 2005-06-28 | Thomson Licensing S.A. | Method and apparatus for reducing multipath distortion in a television signal |
| EP1345419B1 (en) | 1999-09-08 | 2009-11-11 | Thomson Licensing | Multi-element loop antenna |
| DE10104564C1 (de) | 2001-02-01 | 2002-09-19 | Kathrein Werke Kg | Steuerungsvorrichtung zum Einstellen eines unterschiedlichen Absenkwinkels insbesondere von zu einer Basisstation gehörenden Mobilfunkantennen sowie eine zugehörige Antenne und Verfahren zur Veränderung eines Absenkwinkels |
| DE10114313C2 (de) * | 2001-03-23 | 2003-12-04 | Siemens Gebaeudesicherheit Gmb | Verfahren zur Funkübertragung in einem Gefahrenmeldesystem |
| DE10114314A1 (de) * | 2001-03-23 | 2002-10-10 | Siemens Gebaeudesicherheit Gmb | Verfahren zur Funkübertragung in einem Gefahrenmeldesystem |
| JP4212046B2 (ja) * | 2003-03-20 | 2009-01-21 | 株式会社リコー | 指向性可変アンテナおよび該アンテナを用いた電子機器、ならびに該アンテナを用いたアンテナ指向性制御方法 |
| US20070054639A1 (en) * | 2005-09-06 | 2007-03-08 | Bauman Mark A | Apparatus and method for improving the reception of an information signal |
| KR101819220B1 (ko) * | 2012-03-14 | 2018-01-16 | 삼성전자주식회사 | 무선통신 시스템에서 안테나 구조 및 동작 방법 |
| RU2684903C1 (ru) * | 2018-06-04 | 2019-04-16 | Акционерное общество "Государственный Рязанский приборный завод" | Приемник дециметрового диапазона |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2247743A (en) * | 1938-12-10 | 1941-07-01 | Rca Corp | Antenna |
| NL64189C (enExample) * | 1939-04-26 | |||
| US3202995A (en) * | 1961-03-03 | 1965-08-24 | Univ Tennessee Res Corp | Steerable circular traveling-wave antenna |
| US3508274A (en) * | 1966-12-14 | 1970-04-21 | Raymond B Kesler | Motor driven portable dipole antenna |
| US3623110A (en) * | 1968-09-10 | 1971-11-23 | Sony Corp | Loop antenna with spaced impedance elements |
| US3671970A (en) * | 1970-08-31 | 1972-06-20 | Boeing Co | Switched rhombic automatic direction finding antenna system and apparatus |
| US3894229A (en) * | 1972-07-28 | 1975-07-08 | Matsushita Electric Industrial Co Ltd | Signal generator |
| DE2354667A1 (de) * | 1973-11-02 | 1975-05-15 | Maximilian Dr Waechtler | Peilantennenanlage mit gruppenweise schaltbaren einzelantennen |
| US3981016A (en) * | 1974-03-06 | 1976-09-14 | Matsushita Electric Industrial Co., Ltd. | Antenna apparatus for detecting an optimum directivity |
| FR2264290B1 (enExample) * | 1974-03-12 | 1979-07-06 | Thomson Csf | |
| US3956751A (en) * | 1974-12-24 | 1976-05-11 | Julius Herman | Miniaturized tunable antenna for general electromagnetic radiation and sensing with particular application to TV and FM |
| GB1507674A (en) * | 1975-05-23 | 1978-04-19 | C S Antennas Ltd | Aerials |
| JPS5395486A (en) * | 1977-01-31 | 1978-08-21 | Sato Koki Kk | Optical remote control transmitter |
| US4145694A (en) * | 1977-08-01 | 1979-03-20 | Sletten Carlyle J | Compact, directive, broadband antenna system having end loaded dipoles |
| US4193077A (en) * | 1977-10-11 | 1980-03-11 | Avnet, Inc. | Directional antenna system with end loaded crossed dipoles |
-
1979
- 1979-12-18 US US06/104,909 patent/US4338606A/en not_active Expired - Lifetime
- 1979-12-18 AU AU53965/79A patent/AU532289B2/en not_active Expired
- 1979-12-18 CA CA342,185A patent/CA1128654A/en not_active Expired
- 1979-12-19 GB GB7943661A patent/GB2039152B/en not_active Expired
- 1979-12-20 NL NL7909206A patent/NL192551C/nl not_active IP Right Cessation
- 1979-12-21 FR FR7931509A patent/FR2445041A1/fr active Granted
- 1979-12-21 DE DE19792951875 patent/DE2951875A1/de active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| US4338606A (en) | 1982-07-06 |
| GB2039152A (en) | 1980-07-30 |
| GB2039152B (en) | 1982-12-15 |
| AU532289B2 (en) | 1983-09-22 |
| CA1128654A (en) | 1982-07-27 |
| NL192551B (nl) | 1997-05-01 |
| AU5396579A (en) | 1980-06-26 |
| FR2445041A1 (fr) | 1980-07-18 |
| NL192551C (nl) | 1997-09-02 |
| DE2951875A1 (de) | 1980-07-10 |
| NL7909206A (nl) | 1980-06-24 |
| DE2951875C2 (enExample) | 1991-03-14 |