JPS54149450A - Antenna unit - Google Patents
Antenna unitInfo
- Publication number
- JPS54149450A JPS54149450A JP5837578A JP5837578A JPS54149450A JP S54149450 A JPS54149450 A JP S54149450A JP 5837578 A JP5837578 A JP 5837578A JP 5837578 A JP5837578 A JP 5837578A JP S54149450 A JPS54149450 A JP S54149450A
- Authority
- JP
- Japan
- Prior art keywords
- antennas
- directivity
- practically
- constitution
- antenna unit
- 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.)
- 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
- H01Q3/24—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
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
PURPOSE:To make practically an antenna unit of non-directivity to improve sensitivity by gathering plural directive antennas to form a synthetic pattern. CONSTITUTION:Antennas provided in prescribed positions are divided into plural groups by combining them at an interval over three antennas, and they are caused to function as a non-directivity antenna practically by switching successively the output in a prescribed speed after amplifying and detecting respective group units in 2 and 3 respectively. By this constitution, the number of high frequency amplifiers can be reduced, and the trouble dependent upon the interference of adjacent beams of directive antennas can be eliminated practically, so that a wide frequency band can be received with a high sensitivity in non-directivity throughout a desired range.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5837578A JPS54149450A (en) | 1978-05-16 | 1978-05-16 | Antenna unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5837578A JPS54149450A (en) | 1978-05-16 | 1978-05-16 | Antenna unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54149450A true JPS54149450A (en) | 1979-11-22 |
Family
ID=13082571
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5837578A Pending JPS54149450A (en) | 1978-05-16 | 1978-05-16 | Antenna unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54149450A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62203403A (en) * | 1986-03-04 | 1987-09-08 | Kokusai Denshin Denwa Co Ltd <Kdd> | Feeding circuit for array antenna |
JPH02250503A (en) * | 1989-03-24 | 1990-10-08 | Robotetsuku Kenkyusho:Kk | Composite antenna |
US5075696A (en) * | 1988-10-28 | 1991-12-24 | The Marconi Company Limited | Direction finding apparatus |
JP2015233194A (en) * | 2014-06-09 | 2015-12-24 | 日本電信電話株式会社 | Antenna device and base station device |
-
1978
- 1978-05-16 JP JP5837578A patent/JPS54149450A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62203403A (en) * | 1986-03-04 | 1987-09-08 | Kokusai Denshin Denwa Co Ltd <Kdd> | Feeding circuit for array antenna |
US5075696A (en) * | 1988-10-28 | 1991-12-24 | The Marconi Company Limited | Direction finding apparatus |
JPH02250503A (en) * | 1989-03-24 | 1990-10-08 | Robotetsuku Kenkyusho:Kk | Composite antenna |
JP2015233194A (en) * | 2014-06-09 | 2015-12-24 | 日本電信電話株式会社 | Antenna device and base station device |
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