DE68914396D1 - UHF-Bandpassfilter. - Google Patents
UHF-Bandpassfilter.Info
- Publication number
- DE68914396D1 DE68914396D1 DE89202737T DE68914396T DE68914396D1 DE 68914396 D1 DE68914396 D1 DE 68914396D1 DE 89202737 T DE89202737 T DE 89202737T DE 68914396 T DE68914396 T DE 68914396T DE 68914396 D1 DE68914396 D1 DE 68914396D1
- Authority
- DE
- Germany
- Prior art keywords
- bandpass filter
- uhf bandpass
- uhf
- filter
- bandpass
- 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 - Fee Related
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
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/205—Comb or interdigital filters; Cascaded coaxial cavities
- H01P1/2053—Comb or interdigital filters; Cascaded coaxial cavities the coaxial cavity resonators being disposed parall to each other
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Filters And Equalizers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8814425A FR2638902A1 (fr) | 1988-11-04 | 1988-11-04 | Filtre passe-bande uhf |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68914396D1 true DE68914396D1 (de) | 1994-05-11 |
DE68914396T2 DE68914396T2 (de) | 1994-11-10 |
Family
ID=9371586
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68914396T Expired - Fee Related DE68914396T2 (de) | 1988-11-04 | 1989-10-30 | UHF-Bandpassfilter. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4990869A (de) |
EP (1) | EP0367347B1 (de) |
JP (1) | JPH02172301A (de) |
DE (1) | DE68914396T2 (de) |
FR (1) | FR2638902A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5543758A (en) * | 1994-10-07 | 1996-08-06 | Allen Telecom Group, Inc. | Asymmetric dual-band combine filter |
FI110392B (fi) * | 1995-09-26 | 2003-01-15 | Solitra Oy | Koaksiaaliresonaattorisuodatin, koaksiaaliresonaattorisuodattimen valmistusmenetelmä, koaksiaaliresonaattorirakenne ja koaksiaaliresonaattorirakenteen valmistusmenetelmä |
FI110391B (fi) * | 1995-11-08 | 2003-01-15 | Solitra Oy | Kotelorakenteinen suodatin |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2519524A (en) * | 1947-08-13 | 1950-08-22 | Hazeltine Research Inc | Multiple-tuned wave-selector system |
DE2045560C3 (de) * | 1970-09-15 | 1978-03-09 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Mikrowellenfilter aus quaderförmigen Hohlraumresonatoren |
US3693115A (en) * | 1970-12-28 | 1972-09-19 | American Electronic Lab | Mechanical tunable bandpass filter |
JPS5924167Y2 (ja) * | 1978-12-28 | 1984-07-18 | アルプス電気株式会社 | マイクロ波用フイルタ |
US4477785A (en) * | 1981-12-02 | 1984-10-16 | Communications Satellite Corporation | Generalized dielectric resonator filter |
JPS58114503A (ja) * | 1981-12-26 | 1983-07-07 | Fujitsu Ltd | フイルタの結合構造 |
US4621245A (en) * | 1984-05-08 | 1986-11-04 | Zenith Electronics Corporation | Intermediate frequency filter for a DBS receiver |
JPS625702A (ja) * | 1985-07-01 | 1987-01-12 | Fujitsu Ltd | 帯域通過形フイルタ |
US4740765A (en) * | 1985-09-30 | 1988-04-26 | Murata Manufacturing Co., Ltd. | Dielectric filter |
JPS62243402A (ja) * | 1986-04-15 | 1987-10-23 | Murata Mfg Co Ltd | 誘電体フイルタ |
JPS6324701A (ja) * | 1986-07-16 | 1988-02-02 | Murata Mfg Co Ltd | 分布定数線路装置 |
-
1988
- 1988-11-04 FR FR8814425A patent/FR2638902A1/fr not_active Withdrawn
-
1989
- 1989-10-30 EP EP89202737A patent/EP0367347B1/de not_active Expired - Lifetime
- 1989-10-30 DE DE68914396T patent/DE68914396T2/de not_active Expired - Fee Related
- 1989-11-01 US US07/430,743 patent/US4990869A/en not_active Expired - Fee Related
- 1989-11-02 JP JP1285114A patent/JPH02172301A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
US4990869A (en) | 1991-02-05 |
JPH02172301A (ja) | 1990-07-03 |
DE68914396T2 (de) | 1994-11-10 |
EP0367347A1 (de) | 1990-05-09 |
FR2638902A1 (fr) | 1990-05-11 |
EP0367347B1 (de) | 1994-04-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: PHILIPS ELECTRONICS N.V., EINDHOVEN, NL |
|
8339 | Ceased/non-payment of the annual fee |