JPS56169906A - Antenna device - Google Patents
Antenna deviceInfo
- Publication number
- JPS56169906A JPS56169906A JP7454880A JP7454880A JPS56169906A JP S56169906 A JPS56169906 A JP S56169906A JP 7454880 A JP7454880 A JP 7454880A JP 7454880 A JP7454880 A JP 7454880A JP S56169906 A JPS56169906 A JP S56169906A
- Authority
- JP
- Japan
- Prior art keywords
- support
- waves
- triangle
- length
- wavelength
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/18—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces
- H01Q19/19—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/02—Details
- H01Q19/021—Means for reducing undesirable effects
- H01Q19/023—Means for reducing undesirable effects for reducing the scattering of mounting structures, e.g. of the struts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
Landscapes
- Aerials With Secondary Devices (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7454880A JPS56169906A (en) | 1980-06-03 | 1980-06-03 | Antenna device |
CA000378683A CA1172354A (en) | 1980-06-03 | 1981-05-29 | Microwave antenna having improved wide angle radiation characteristics |
US06/269,216 US4369448A (en) | 1980-06-03 | 1981-06-02 | Microwave antenna with radiation scattering support member elements |
GB8116783A GB2081023B (en) | 1980-06-03 | 1981-06-02 | Reflector antenna |
GB08408429A GB2145569B (en) | 1980-06-03 | 1984-04-02 | Reflector antenna |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7454880A JPS56169906A (en) | 1980-06-03 | 1980-06-03 | Antenna device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56169906A true JPS56169906A (en) | 1981-12-26 |
JPH0221169B2 JPH0221169B2 (ja) | 1990-05-14 |
Family
ID=13550410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7454880A Granted JPS56169906A (en) | 1980-06-03 | 1980-06-03 | Antenna device |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS56169906A (ja) |
GB (1) | GB2145569B (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006177894A (ja) * | 2004-12-24 | 2006-07-06 | Device Co Ltd | アンテナ昇降装置 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2637130B1 (fr) * | 1988-09-23 | 1991-05-31 | Alcatel Transmission | Antenne a optique cassegrain a haut rendement |
AU627493B2 (en) * | 1988-09-23 | 1992-08-27 | Alcatel N.V. | A circularly symmetrical reflector |
US5182569A (en) * | 1988-09-23 | 1993-01-26 | Alcatel N.V. | Antenna having a circularly symmetrical reflector |
WO2011048941A1 (ja) | 2009-10-21 | 2011-04-28 | 三菱電機株式会社 | アンテナ装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53105343A (en) * | 1977-02-26 | 1978-09-13 | Nippon Telegr & Teleph Corp <Ntt> | Antenna unit |
JPS54134959A (en) * | 1978-04-12 | 1979-10-19 | Mitsubishi Electric Corp | Radio-wave shielding board |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB609060A (en) * | 1946-03-05 | 1948-09-24 | Athur Harold Stevens | Improvements in or relating to an absorption device for ultra high frequency radiant energy |
GB1205014A (en) * | 1966-10-04 | 1970-09-09 | Gen Electric & English Elect | Improvements in or relating to directional aerial systems |
GB1162312A (en) * | 1967-02-16 | 1969-08-27 | Mini Of Technology London | Improvements in or relating to Microwave Aerial Assemblies |
-
1980
- 1980-06-03 JP JP7454880A patent/JPS56169906A/ja active Granted
-
1984
- 1984-04-02 GB GB08408429A patent/GB2145569B/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53105343A (en) * | 1977-02-26 | 1978-09-13 | Nippon Telegr & Teleph Corp <Ntt> | Antenna unit |
JPS54134959A (en) * | 1978-04-12 | 1979-10-19 | Mitsubishi Electric Corp | Radio-wave shielding board |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006177894A (ja) * | 2004-12-24 | 2006-07-06 | Device Co Ltd | アンテナ昇降装置 |
Also Published As
Publication number | Publication date |
---|---|
JPH0221169B2 (ja) | 1990-05-14 |
GB2145569A (en) | 1985-03-27 |
GB8408429D0 (en) | 1984-05-10 |
GB2145569B (en) | 1985-09-18 |
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