DE3874882D1 - Modenselektives bandpassfilter. - Google Patents
Modenselektives bandpassfilter.Info
- Publication number
- DE3874882D1 DE3874882D1 DE8888119270T DE3874882T DE3874882D1 DE 3874882 D1 DE3874882 D1 DE 3874882D1 DE 8888119270 T DE8888119270 T DE 8888119270T DE 3874882 T DE3874882 T DE 3874882T DE 3874882 D1 DE3874882 D1 DE 3874882D1
- Authority
- DE
- Germany
- Prior art keywords
- fashion
- pass filter
- band pass
- selective band
- selective
- 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
- H01P1/16—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion
-
- 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
- H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/156,119 US4802234A (en) | 1988-02-16 | 1988-02-16 | Mode selective band pass filter |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3874882D1 true DE3874882D1 (de) | 1992-10-29 |
DE3874882T2 DE3874882T2 (de) | 1993-04-22 |
Family
ID=22558175
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8888119270T Expired - Fee Related DE3874882T2 (de) | 1988-02-16 | 1988-11-19 | Modenselektives bandpassfilter. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4802234A (de) |
EP (1) | EP0328747B1 (de) |
JP (1) | JPH01251802A (de) |
CA (1) | CA1295382C (de) |
DE (1) | DE3874882T2 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2652203B1 (fr) * | 1989-09-21 | 1991-12-13 | Alcatel Transmission | Filtre hyperfrequence en guide d'onde, a volets. |
FR2666177B1 (fr) * | 1990-08-27 | 1993-02-05 | Alcatel Telspace | Filtre hyperfrequence a acces lateral. |
US5373270A (en) * | 1993-12-06 | 1994-12-13 | Radio Frequency Systems, Inc. | Multi-cavity dielectric filter |
US5694439A (en) * | 1995-03-21 | 1997-12-02 | Intel Corporation | Bi-directional low pass filtering method and apparatus |
JP3503482B2 (ja) | 1997-09-04 | 2004-03-08 | 株式会社村田製作所 | 多重モード誘電体共振器装置、誘電体フィルタ、複合誘電体フィルタ、合成器、分配器、および通信装置 |
JP3506013B2 (ja) | 1997-09-04 | 2004-03-15 | 株式会社村田製作所 | 多重モード誘電体共振器装置、誘電体フィルタ、複合誘電体フィルタ、合成器、分配器および通信装置 |
EP0947812A1 (de) * | 1998-03-28 | 1999-10-06 | Endress + Hauser GmbH + Co. | Mit Mikrowellen arbeitendes Füllstandsmessgerät |
US7009469B2 (en) * | 2002-06-28 | 2006-03-07 | Harris Corporation | Compact waveguide filter and method |
US7345622B2 (en) * | 2005-10-14 | 2008-03-18 | Saab Rosemount Tank Radar Ab | Two-mode radar level gauge system |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3237132A (en) * | 1960-01-21 | 1966-02-22 | Okaya Akira | Dielectric microwave resonator |
US3603899A (en) * | 1969-04-18 | 1971-09-07 | Bell Telephone Labor Inc | High q microwave cavity |
JPS5416151A (en) * | 1977-07-06 | 1979-02-06 | Murata Manufacturing Co | Filter for coaxial line |
US4360793A (en) * | 1981-04-02 | 1982-11-23 | Rhodes John D | Extracted pole filter |
US4500859A (en) * | 1983-04-05 | 1985-02-19 | At&T Bell Laboratories | Filter for existing waveguide structures |
US4692723A (en) * | 1985-07-08 | 1987-09-08 | Ford Aerospace & Communications Corporation | Narrow bandpass dielectric resonator filter with mode suppression pins |
-
1988
- 1988-02-16 US US07/156,119 patent/US4802234A/en not_active Expired - Lifetime
- 1988-11-19 DE DE8888119270T patent/DE3874882T2/de not_active Expired - Fee Related
- 1988-11-19 EP EP88119270A patent/EP0328747B1/de not_active Expired
- 1988-11-23 CA CA000583936A patent/CA1295382C/en not_active Expired - Fee Related
- 1988-11-24 JP JP63294837A patent/JPH01251802A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JPH01251802A (ja) | 1989-10-06 |
DE3874882T2 (de) | 1993-04-22 |
EP0328747A2 (de) | 1989-08-23 |
EP0328747B1 (de) | 1992-09-23 |
EP0328747A3 (en) | 1990-06-20 |
CA1295382C (en) | 1992-02-04 |
US4802234A (en) | 1989-01-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |