IT1041177B - Dispositvio munito di griglia di filtraggio - Google Patents
Dispositvio munito di griglia di filtraggioInfo
- Publication number
- IT1041177B IT1041177B IT5087175A IT5087175A IT1041177B IT 1041177 B IT1041177 B IT 1041177B IT 5087175 A IT5087175 A IT 5087175A IT 5087175 A IT5087175 A IT 5087175A IT 1041177 B IT1041177 B IT 1041177B
- Authority
- IT
- Italy
- Prior art keywords
- grid
- band
- mirrors
- beams
- resultant beam
- Prior art date
Links
- 238000001914 filtration Methods 0.000 title 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
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
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0013—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective
- H01Q15/0033—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective used for beam splitting or combining, e.g. acting as a quasi-optical multiplexer
Landscapes
- Aerials With Secondary Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7427766A FR2281660A1 (fr) | 1974-08-09 | 1974-08-09 | Dispositif muni d'une grille de filtrage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT1041177B true IT1041177B (it) | 1980-01-10 |
Family
ID=9142312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT5087175A IT1041177B (it) | 1974-08-09 | 1975-08-08 | Dispositvio munito di griglia di filtraggio |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR2281660A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1512681A (enrdf_load_stackoverflow) |
| IT (1) | IT1041177B (enrdf_load_stackoverflow) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2429505A1 (fr) * | 1978-06-20 | 1980-01-18 | Thomson Csf | Systeme d'alimentation periscopique pour antenne bi-gamme |
| US4476471A (en) * | 1981-02-09 | 1984-10-09 | Nippon Electric Co., Ltd. | Antenna apparatus including frequency separator having wide band transmission or reflection characteristics |
| FR2525823A1 (fr) * | 1982-04-27 | 1983-10-28 | Thomson Csf | Dispositif d'excitation d'une source rainuree hyperfrequence bi-bande |
| FR2535904B1 (fr) * | 1982-11-09 | 1985-08-02 | Thomson Csf | Joint tournant de puissance pour antenne double bande |
| FR2540296A1 (fr) * | 1983-01-31 | 1984-08-03 | Thomson Csf | Filtre spatial d'ondes electromagnetiques de polarisation circulaire et antenne cassegrain comportant un tel filtre |
| DE3402659A1 (de) * | 1984-01-26 | 1985-08-01 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | Reflektorantenne fuer den betrieb in mehreren frequenzbereichen |
| DE3431986A1 (de) * | 1984-08-30 | 1986-03-06 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | Polarisationstrennender reflektor |
| 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 |
| WO2022053160A1 (en) * | 2020-09-14 | 2022-03-17 | Huawei Technologies Co., Ltd. | Apparatus for feeding two radio waves into an offset reflector |
-
1974
- 1974-08-09 FR FR7427766A patent/FR2281660A1/fr active Granted
-
1975
- 1975-08-08 GB GB3324975A patent/GB1512681A/en not_active Expired
- 1975-08-08 IT IT5087175A patent/IT1041177B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| GB1512681A (en) | 1978-06-01 |
| FR2281660B1 (enrdf_load_stackoverflow) | 1978-01-27 |
| FR2281660A1 (fr) | 1976-03-05 |
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