IT1228107B - Perfezionamenti ai filtri passa banda a pettine nel campo delle microonde - Google Patents
Perfezionamenti ai filtri passa banda a pettine nel campo delle microondeInfo
- Publication number
- IT1228107B IT1228107B IT8823033A IT2303388A IT1228107B IT 1228107 B IT1228107 B IT 1228107B IT 8823033 A IT8823033 A IT 8823033A IT 2303388 A IT2303388 A IT 2303388A IT 1228107 B IT1228107 B IT 1228107B
- Authority
- IT
- Italy
- Prior art keywords
- refinements
- microwave field
- filters
- comb
- comb bands
- Prior art date
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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8823033A IT1228107B (it) | 1988-12-21 | 1988-12-21 | Perfezionamenti ai filtri passa banda a pettine nel campo delle microonde |
US07/446,022 US5012210A (en) | 1988-12-21 | 1989-12-05 | Comb-line band-pass filters in the microwave field |
DE68915134T DE68915134T2 (de) | 1988-12-21 | 1989-12-07 | Mikrowellen-Bandpassfilter in Kammleitungsform. |
EP89203108A EP0375016B1 (en) | 1988-12-21 | 1989-12-07 | Microwave comb-line band-pass filters |
ES89203108T ES2051991T3 (es) | 1988-12-21 | 1989-12-07 | Filtros de paso de banda de linea de peine de microondas. |
AU46790/89A AU629273B2 (en) | 1988-12-21 | 1989-12-14 | Improvements in comb-line band-pass filters in the microwave field |
NO895098A NO174315C (no) | 1988-12-21 | 1989-12-18 | Kambåndpassfilter i mikrobölgeområdet |
FI896118A FI94575C (fi) | 1988-12-21 | 1989-12-20 | Mikroaaltoalueen kampalinjakaistanpäästösuodin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8823033A IT1228107B (it) | 1988-12-21 | 1988-12-21 | Perfezionamenti ai filtri passa banda a pettine nel campo delle microonde |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8823033A0 IT8823033A0 (it) | 1988-12-21 |
IT1228107B true IT1228107B (it) | 1991-05-28 |
Family
ID=11203104
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT8823033A IT1228107B (it) | 1988-12-21 | 1988-12-21 | Perfezionamenti ai filtri passa banda a pettine nel campo delle microonde |
Country Status (8)
Country | Link |
---|---|
US (1) | US5012210A (it) |
EP (1) | EP0375016B1 (it) |
AU (1) | AU629273B2 (it) |
DE (1) | DE68915134T2 (it) |
ES (1) | ES2051991T3 (it) |
FI (1) | FI94575C (it) |
IT (1) | IT1228107B (it) |
NO (1) | NO174315C (it) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5731746A (en) * | 1995-06-30 | 1998-03-24 | Motorola Inc. | Multi-frequency ceramic block filter with resonators in different planes |
US8085118B2 (en) * | 2009-07-31 | 2011-12-27 | Com Dev International Ltd. | Inline cross-coupled coaxial cavity filter |
GB2478938A (en) * | 2010-03-24 | 2011-09-28 | Gary Raymond Cobb | Coupled transmission line resonator band-pass filter with transversely rotated resonators for improved selectivity |
CN103457008B (zh) * | 2013-08-31 | 2016-03-02 | 西安电子科技大学 | 一种具有背腔谐振器的滤波器 |
CN109643834B (zh) * | 2016-07-18 | 2020-10-30 | 康普公司意大利有限责任公司 | 适于蜂窝应用的管状直列式滤波器及相关方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3093803A (en) * | 1959-08-19 | 1963-06-11 | Allen Bradley Co | Filter having lumped resonance elements spaced along length of shielding enclosure, with adjustable magnetic coupling between elements |
GB1163896A (en) * | 1965-11-19 | 1969-09-10 | Plessey Co Ltd | Improvements in or relating to Transmission Line Band-Pass Filters |
JPS56119501A (en) * | 1980-02-25 | 1981-09-19 | Alps Electric Co Ltd | Filter |
US4489293A (en) * | 1981-05-11 | 1984-12-18 | Ford Aerospace & Communications Corporation | Miniature dual-mode, dielectric-loaded cavity filter |
CA1153432A (en) * | 1982-08-25 | 1983-09-06 | James B. Dorey | Bandpass filter with plurality of wave-guide cavities |
US4630009A (en) * | 1984-01-24 | 1986-12-16 | Com Dev Ltd. | Cascade waveguide triple-mode filters useable as a group delay equalizer |
FR2583597A1 (fr) * | 1985-06-13 | 1986-12-19 | Alcatel Thomson Faisceaux | Filtre passe-bande hyperfrequences en mode evanescent |
JPS62204601A (ja) * | 1986-03-04 | 1987-09-09 | Murata Mfg Co Ltd | 二重モ−ドフイルタ |
-
1988
- 1988-12-21 IT IT8823033A patent/IT1228107B/it active
-
1989
- 1989-12-05 US US07/446,022 patent/US5012210A/en not_active Expired - Fee Related
- 1989-12-07 ES ES89203108T patent/ES2051991T3/es not_active Expired - Lifetime
- 1989-12-07 DE DE68915134T patent/DE68915134T2/de not_active Expired - Fee Related
- 1989-12-07 EP EP89203108A patent/EP0375016B1/en not_active Expired - Lifetime
- 1989-12-14 AU AU46790/89A patent/AU629273B2/en not_active Ceased
- 1989-12-18 NO NO895098A patent/NO174315C/no unknown
- 1989-12-20 FI FI896118A patent/FI94575C/fi not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FI896118A0 (fi) | 1989-12-20 |
EP0375016A2 (en) | 1990-06-27 |
AU4679089A (en) | 1990-06-28 |
ES2051991T3 (es) | 1994-07-01 |
EP0375016A3 (en) | 1991-03-20 |
DE68915134T2 (de) | 1994-09-08 |
IT8823033A0 (it) | 1988-12-21 |
NO895098D0 (no) | 1989-12-18 |
US5012210A (en) | 1991-04-30 |
NO174315B (no) | 1994-01-03 |
NO895098L (no) | 1990-06-22 |
NO174315C (no) | 1994-04-13 |
EP0375016B1 (en) | 1994-05-04 |
FI94575B (fi) | 1995-06-15 |
FI94575C (fi) | 1995-09-25 |
AU629273B2 (en) | 1992-10-01 |
DE68915134D1 (de) | 1994-06-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DK0508735T3 (da) | Mikrobølgefilter | |
DE69320521D1 (de) | Tiefpass-Hochfrequenzfilter | |
DE69506592D1 (de) | Veränderliches Filter | |
FI932661A0 (fi) | Vaerme- och fuktvaexlande filter | |
DE68927773D1 (de) | Mikrowellenfilter | |
DE69308410D1 (de) | Filter | |
DE69322045D1 (de) | Mikrowellenfilter | |
DE69121549D1 (de) | Bandpassfilter | |
DE69028249D1 (de) | Filtergerät | |
IT1228107B (it) | Perfezionamenti ai filtri passa banda a pettine nel campo delle microonde | |
DE69327991D1 (de) | Filter | |
KR910010950A (ko) | 바이트폭 반복필터 | |
FI921025A (fi) | Suodatin | |
DE69121162D1 (de) | Schmalbandstrahlungsfilter | |
DE69120317D1 (de) | Logische Kammfilter | |
DE69024333D1 (de) | Filtervorrichtung | |
KR900003813U (ko) | 가변형 콘센트 | |
ITTO910144U1 (it) | Pannolino con porzione filtrante rimovibile | |
KR950005147U (ko) | 콤필터 | |
BR9004540A (pt) | Filtro de banda de sub-pressao | |
BR8903696A (pt) | Conjunto filtrante | |
NO920370D0 (no) | Filter | |
BR8901671A (pt) | Filtro autocentrifugo | |
NO921895D0 (no) | Overflateboelge-reflektorfilter | |
ITTO910459A0 (it) | Pannolino con elemento filtrante amovibile |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19961218 |