IE42362B1 - Improvements in or relating to cassegrain antennae - Google Patents
Improvements in or relating to cassegrain antennaeInfo
- Publication number
- IE42362B1 IE42362B1 IE261075A IE261075A IE42362B1 IE 42362 B1 IE42362 B1 IE 42362B1 IE 261075 A IE261075 A IE 261075A IE 261075 A IE261075 A IE 261075A IE 42362 B1 IE42362 B1 IE 42362B1
- Authority
- IE
- Ireland
- Prior art keywords
- reflector
- antenna
- waveguide
- azimuthal
- elevational
- Prior art date
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
- H01Q19/191—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 wherein the primary active element uses one or more deflecting surfaces, e.g. beam waveguide feeds
-
- 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
- H01Q3/02—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 movement of antenna or antenna system as a whole
- H01Q3/08—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 movement of antenna or antenna system as a whole for varying two co-ordinates of the orientation
Landscapes
- Aerials With Secondary Devices (AREA)
- Waveguide Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Details Of Aerials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742461283 DE2461283A1 (de) | 1974-12-23 | 1974-12-23 | Otationssymmetrische cassegrainantenne |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE42362L IE42362L (en) | 1976-06-23 |
| IE42362B1 true IE42362B1 (en) | 1980-07-30 |
Family
ID=5934488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE261075A IE42362B1 (en) | 1974-12-23 | 1975-12-01 | Improvements in or relating to cassegrain antennae |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS5189371A (fr) |
| BE (1) | BE837012A (fr) |
| DE (1) | DE2461283A1 (fr) |
| DK (1) | DK141221C (fr) |
| FR (1) | FR2296280A1 (fr) |
| GB (1) | GB1532415A (fr) |
| IE (1) | IE42362B1 (fr) |
| IT (1) | IT1051413B (fr) |
| LU (1) | LU73599A1 (fr) |
| NL (1) | NL161627C (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5744302A (en) * | 1980-08-28 | 1982-03-12 | Mitsubishi Electric Corp | Antenna device |
| US9812776B2 (en) | 2012-04-02 | 2017-11-07 | Furuno Electric Co., Ltd. | Antenna device |
| CN103746187B (zh) * | 2013-12-23 | 2015-09-23 | 北京邮电大学 | 一种卡塞格伦天线探测系统及其设计方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5411396B2 (fr) * | 1973-07-20 | 1979-05-15 |
-
1974
- 1974-12-23 DE DE19742461283 patent/DE2461283A1/de not_active Ceased
-
1975
- 1975-10-17 LU LU73599A patent/LU73599A1/xx unknown
- 1975-11-12 DK DK509575A patent/DK141221C/da not_active IP Right Cessation
- 1975-11-24 GB GB4815975A patent/GB1532415A/en not_active Expired
- 1975-12-01 IE IE261075A patent/IE42362B1/en unknown
- 1975-12-18 FR FR7538846A patent/FR2296280A1/fr active Granted
- 1975-12-19 NL NL7514831A patent/NL161627C/xx not_active IP Right Cessation
- 1975-12-19 IT IT3051275A patent/IT1051413B/it active
- 1975-12-23 JP JP50153881A patent/JPS5189371A/ja active Pending
- 1975-12-23 BE BE163057A patent/BE837012A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE837012A (fr) | 1976-04-16 |
| DK141221C (da) | 1980-07-21 |
| DK509575A (da) | 1976-06-24 |
| IT1051413B (it) | 1981-04-21 |
| NL161627B (nl) | 1979-09-17 |
| LU73599A1 (fr) | 1976-06-11 |
| IE42362L (en) | 1976-06-23 |
| FR2296280A1 (fr) | 1976-07-23 |
| JPS5189371A (fr) | 1976-08-05 |
| NL161627C (nl) | 1980-02-15 |
| NL7514831A (nl) | 1976-06-25 |
| FR2296280B1 (fr) | 1980-10-17 |
| DE2461283A1 (de) | 1976-07-01 |
| DK141221B (da) | 1980-02-04 |
| GB1532415A (en) | 1978-11-15 |
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