GB1297292A - - Google Patents
Info
- Publication number
- GB1297292A GB1297292A GB1297292DA GB1297292A GB 1297292 A GB1297292 A GB 1297292A GB 1297292D A GB1297292D A GB 1297292DA GB 1297292 A GB1297292 A GB 1297292A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filter
- elements
- reflector
- frequency
- frequency group
- 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.)
- Expired
Links
- 239000011521 glass Substances 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 3
- 238000000926 separation method Methods 0.000 abstract 2
- IZMZREOTRMMCCB-UHFFFAOYSA-N 1,4-dichloro-2-ethenylbenzene Chemical compound ClC1=CC=C(Cl)C(C=C)=C1 IZMZREOTRMMCCB-UHFFFAOYSA-N 0.000 abstract 1
- 239000004793 Polystyrene Substances 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
- 239000005350 fused silica glass Substances 0.000 abstract 1
- 229920002223 polystyrene Polymers 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
- H01P1/2138—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies using hollow waveguide filters
-
- 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
- H01Q15/0026—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 said selective devices having a stacked geometry or having multiple layers
Landscapes
- Aerials With Secondary Devices (AREA)
- Waveguide Aerials (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8976469A JPS5036549B1 (enrdf_load_stackoverflow) | 1969-11-11 | 1969-11-11 | |
| JP4999770A JPS5033632B1 (enrdf_load_stackoverflow) | 1970-06-11 | 1970-06-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1297292A true GB1297292A (enrdf_load_stackoverflow) | 1972-11-22 |
Family
ID=26390430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1297292D Expired GB1297292A (enrdf_load_stackoverflow) | 1969-11-11 | 1970-11-11 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3698001A (enrdf_load_stackoverflow) |
| FR (1) | FR2067094B1 (enrdf_load_stackoverflow) |
| GB (1) | GB1297292A (enrdf_load_stackoverflow) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5148435B2 (enrdf_load_stackoverflow) * | 1971-03-11 | 1976-12-21 | ||
| US4021812A (en) * | 1975-09-11 | 1977-05-03 | The United States Of America As Represented By The Secretary Of The Air Force | Layered dielectric filter for sidelobe suppression |
| FR2429505A1 (fr) * | 1978-06-20 | 1980-01-18 | Thomson Csf | Systeme d'alimentation periscopique pour antenne bi-gamme |
| US4284992A (en) * | 1979-12-26 | 1981-08-18 | Bell Telephone Laboratories, Incorporated | Wide scan quasi-optical frequency diplexer |
| US4368473A (en) * | 1980-09-08 | 1983-01-11 | Ford Aerospace & Communications Corporation | Microwave lens ripple filter |
| US4343002A (en) * | 1980-09-08 | 1982-08-03 | Ford Aerospace & Communications Corporation | Paraboloidal reflector spatial filter |
| FR2525823A1 (fr) * | 1982-04-27 | 1983-10-28 | Thomson Csf | Dispositif d'excitation d'une source rainuree hyperfrequence bi-bande |
| US4652885A (en) * | 1985-03-04 | 1987-03-24 | The United States Of America As Represented By The Secretary Of The Army | Dual mode antenna for millimeter wave and infrared radiation |
| US4636797A (en) * | 1985-03-04 | 1987-01-13 | The United States Of America As Represented By The Secretary Of The Army | Dual mode dichroic antenna/aperture |
| US4804970A (en) * | 1985-05-06 | 1989-02-14 | Harris Corp. | Equiphase refractive antenna lens |
| US5187461A (en) * | 1991-02-15 | 1993-02-16 | Karl Brommer | Low-loss dielectric resonator having a lattice structure with a resonant defect |
| US5784033A (en) * | 1996-06-07 | 1998-07-21 | Hughes Electronics Corporation | Plural frequency antenna feed |
| DE19732569A1 (de) * | 1997-07-29 | 1999-02-18 | Spinner Gmbh Elektrotech | Quasioptisches Oberwellenfilter |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA562602A (en) * | 1958-09-02 | Canadian Marconi Company | Multiple beam aerial arrangements | |
| US2636125A (en) * | 1948-04-10 | 1953-04-21 | Bell Telephone Labor Inc | Selective electromagnetic wave system |
| FR1050075A (fr) * | 1952-01-31 | 1954-01-05 | Miroir dispersif alvéolé | |
| GB735901A (en) * | 1953-02-06 | 1955-08-31 | Marconi Wireless Telegraph Co | Improvements in or relating to hybrid junction arrangements for use on micro radio waves |
| US3521288A (en) * | 1968-07-10 | 1970-07-21 | Us Air Force | Antenna array employing beam waveguide feed |
-
1970
- 1970-11-05 US US87278A patent/US3698001A/en not_active Expired - Lifetime
- 1970-11-10 FR FR7040450A patent/FR2067094B1/fr not_active Expired
- 1970-11-11 GB GB1297292D patent/GB1297292A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2067094A1 (enrdf_load_stackoverflow) | 1971-08-13 |
| FR2067094B1 (enrdf_load_stackoverflow) | 1974-04-26 |
| DE2055525A1 (de) | 1971-05-19 |
| DE2055525B2 (de) | 1973-02-22 |
| US3698001A (en) | 1972-10-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PE20 | Patent expired after termination of 20 years |