JPS5057364A - - Google Patents
Info
- Publication number
- JPS5057364A JPS5057364A JP49103783A JP10378374A JPS5057364A JP S5057364 A JPS5057364 A JP S5057364A JP 49103783 A JP49103783 A JP 49103783A JP 10378374 A JP10378374 A JP 10378374A JP S5057364 A JPS5057364 A JP S5057364A
- Authority
- JP
- Japan
- 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.)
- Pending
Links
Classifications
-
- 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
- H01Q3/12—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 mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
- H01Q3/16—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 mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying relative position of primary active element and a reflecting device
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/002—Antennas or antenna systems providing at least two radiating patterns providing at least two patterns of different beamwidth; Variable beamwidth antennas
Landscapes
- Aerials With Secondary Devices (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US395868A US3866233A (en) | 1973-09-10 | 1973-09-10 | Dish antenna having switchable beamwidth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5057364A true JPS5057364A (ja) | 1975-05-19 |
Family
ID=23564878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP49103783A Pending JPS5057364A (ja) | 1973-09-10 | 1974-09-09 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3866233A (ja) |
| JP (1) | JPS5057364A (ja) |
| CA (1) | CA997062A (ja) |
| DE (1) | DE2442884A1 (ja) |
| FR (1) | FR2243533B1 (ja) |
| GB (1) | GB1472139A (ja) |
| NL (1) | NL7410633A (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5230141A (en) * | 1975-09-01 | 1977-03-07 | Nippon Telegr & Teleph Corp <Ntt> | Beam width variable antenna of ariable feeding position type |
| JPS6316701A (ja) * | 1986-07-09 | 1988-01-23 | Nec Corp | 複反射鏡アンテナ |
| JPS6430304A (en) * | 1987-07-27 | 1989-02-01 | Fujitsu Ltd | Horizontal in-plane non-directional antenna |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3990080A (en) * | 1975-07-21 | 1976-11-02 | Bell Telephone Laboratories, Incorporated | Antenna with echo cancelling elements |
| US4042933A (en) * | 1976-03-19 | 1977-08-16 | The United States Of America As Represented By The Secretary Of The Navy | Antenna line scan system for helicopter wire detection |
| FR2412961A1 (fr) * | 1977-12-22 | 1979-07-20 | Thomson Csf | Systeme d'antenne a balayage conique pour radar de poursuite |
| FR2448233A1 (fr) * | 1979-02-02 | 1980-08-29 | Thomson Csf | Antenne cassegrain inversee pour radar a fonctions multiples |
| GB2268834B (en) * | 1980-12-04 | 1994-06-22 | Racal Mesl Ltd | Radar arrangements and methods of detecting different types of targets |
| DE3411838A1 (de) * | 1984-03-30 | 1985-10-10 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Schwenkstrahlantenne fuer weltraumfunkstellen |
| DE29724409U1 (de) * | 1997-10-14 | 2001-11-15 | Rr Elektronische Geraete Gmbh | Nachführsystem zum Ausrichten einer verschwenkbaren Reflektroantenne |
| US6172650B1 (en) * | 1998-07-02 | 2001-01-09 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Antenna system |
| US6320553B1 (en) * | 1999-12-14 | 2001-11-20 | Harris Corporation | Multiple frequency reflector antenna with multiple feeds |
| DE102008011350A1 (de) * | 2008-02-27 | 2009-09-03 | Loeffler Technology Gmbh | Vorrichtung und Verfahren zur Echtzeiterfassung von elektromagnetischer THz-Strahlung |
| US9093754B2 (en) | 2013-05-10 | 2015-07-28 | Google Inc. | Dynamically adjusting width of beam based on altitude |
| US9929474B2 (en) * | 2015-07-02 | 2018-03-27 | Sea Tel, Inc. | Multiple-feed antenna system having multi-position subreflector assembly |
| US10116060B2 (en) | 2015-08-31 | 2018-10-30 | Commscope Technologies Llc | Variable beam width antenna systems |
| EP4068504A3 (en) * | 2021-03-31 | 2022-12-21 | Nokia Solutions and Networks Oy | Antenna apparatus and method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3716869A (en) * | 1970-12-02 | 1973-02-13 | Nasa | Millimeter wave antenna system |
-
1973
- 1973-09-10 US US395868A patent/US3866233A/en not_active Expired - Lifetime
-
1974
- 1974-07-24 CA CA205,525A patent/CA997062A/en not_active Expired
- 1974-07-26 GB GB3308474A patent/GB1472139A/en not_active Expired
- 1974-08-07 NL NL7410633A patent/NL7410633A/xx unknown
- 1974-08-30 FR FR7429622A patent/FR2243533B1/fr not_active Expired
- 1974-09-07 DE DE2442884A patent/DE2442884A1/de active Pending
- 1974-09-09 JP JP49103783A patent/JPS5057364A/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5230141A (en) * | 1975-09-01 | 1977-03-07 | Nippon Telegr & Teleph Corp <Ntt> | Beam width variable antenna of ariable feeding position type |
| JPS6316701A (ja) * | 1986-07-09 | 1988-01-23 | Nec Corp | 複反射鏡アンテナ |
| JPS6430304A (en) * | 1987-07-27 | 1989-02-01 | Fujitsu Ltd | Horizontal in-plane non-directional antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2243533B1 (ja) | 1979-03-16 |
| CA997062A (en) | 1976-09-14 |
| US3866233A (en) | 1975-02-11 |
| GB1472139A (en) | 1977-05-04 |
| DE2442884A1 (de) | 1975-03-13 |
| FR2243533A1 (ja) | 1975-04-04 |
| NL7410633A (nl) | 1975-03-12 |