FR2240535B1 - - Google Patents
Info
- Publication number
- FR2240535B1 FR2240535B1 FR7427854A FR7427854A FR2240535B1 FR 2240535 B1 FR2240535 B1 FR 2240535B1 FR 7427854 A FR7427854 A FR 7427854A FR 7427854 A FR7427854 A FR 7427854A FR 2240535 B1 FR2240535 B1 FR 2240535B1
- Authority
- FR
- France
- 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
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
- H01P1/207—Hollow waveguide filters
- H01P1/209—Hollow waveguide filters comprising one or more branching arms or cavities wholly outside the main waveguide
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3814173A GB1422092A (en) | 1973-08-11 | 1973-08-11 | Wave-guide filters |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2240535A1 FR2240535A1 (fr) | 1975-03-07 |
FR2240535B1 true FR2240535B1 (fr) | 1979-09-21 |
Family
ID=10401479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7427854A Expired FR2240535B1 (fr) | 1973-08-11 | 1974-08-12 |
Country Status (4)
Country | Link |
---|---|
US (1) | US3916352A (fr) |
FR (1) | FR2240535B1 (fr) |
GB (1) | GB1422092A (fr) |
IT (1) | IT1016814B (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2826081C3 (de) * | 1978-06-14 | 1981-03-26 | Spinner GmbH Elektrotechnische Fabrik, 80335 München | HF-Dämpfungsglied |
US4628538A (en) * | 1985-05-13 | 1986-12-09 | Andrew Corporation | Television transmission system using overmoded waveguide |
US5004993A (en) * | 1989-09-19 | 1991-04-02 | The United States Of America As Represented By The Secretary Of The Navy | Constricted split block waveguide low pass filter with printed circuit filter substrate |
GB2456043B (en) * | 2007-12-28 | 2011-11-30 | Furuno Electric Co | Harmonic suppression resonator, harmonic propagation blocking filter, and radar apparatus |
KR101330682B1 (ko) * | 2011-10-26 | 2013-11-19 | 한국해양대학교 산학협력단 | 테라헤르츠파 대역 필터 |
US10249929B1 (en) * | 2016-01-29 | 2019-04-02 | The United States Of America As Represented By The Administrator Of National Aeronautics And Space Administration | Multimode directional coupler |
US10181630B2 (en) * | 2016-08-08 | 2019-01-15 | Rohde & Schwarz Gmbh & Co. Kg | Directional coupler and a combiner |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2785381A (en) * | 1953-04-23 | 1957-03-12 | Burton P Brown | Electromagnetic wave filter |
US3187277A (en) * | 1962-05-14 | 1965-06-01 | Airtron Inc | Waveguide harmonic suppressor employing subsidiary waveguides, cut off for fundamental, for coupling main waveguide harmonics to absorber |
US3451014A (en) * | 1964-12-23 | 1969-06-17 | Microwave Dev Lab Inc | Waveguide filter having branch means to absorb or attenuate frequencies above pass-band |
US3353123A (en) * | 1965-09-01 | 1967-11-14 | Gen Electric | Microwave filter comprising absorbing structures for removing suprious wave energy |
US3464035A (en) * | 1966-07-25 | 1969-08-26 | Gerald W Van Kol | Filter coupled to microwave guide |
US3593220A (en) * | 1968-07-15 | 1971-07-13 | Varian Associates | High power microwave low-pass filter of the leaky wall type |
US3559111A (en) * | 1969-09-10 | 1971-01-26 | Kunihiro Suetake | Electric wave matching element employing a ferrite plate conductively coated on one surface |
-
1973
- 1973-08-11 GB GB3814173A patent/GB1422092A/en not_active Expired
-
1974
- 1974-08-12 FR FR7427854A patent/FR2240535B1/fr not_active Expired
- 1974-08-12 US US496874A patent/US3916352A/en not_active Expired - Lifetime
- 1974-08-12 IT IT69527/74A patent/IT1016814B/it active
Also Published As
Publication number | Publication date |
---|---|
IT1016814B (it) | 1977-06-20 |
DE2354151B2 (de) | 1975-10-02 |
US3916352A (en) | 1975-10-28 |
FR2240535A1 (fr) | 1975-03-07 |
DE2354151A1 (de) | 1975-02-27 |
GB1422092A (en) | 1976-01-21 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse | ||
RC | Opposition against decision of lapse | ||
DA | Annulment of decision of lapse | ||
ST | Notification of lapse |