IT1228107B - Perfezionamenti ai filtri passa banda a pettine nel campo delle microonde - Google Patents

Perfezionamenti ai filtri passa banda a pettine nel campo delle microonde

Info

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
Application number
IT8823033A
Other languages
English (en)
Other versions
IT8823033A0 (it
Inventor
Franco Marconi
Nicolo' De Stena
Original Assignee
Sits Soc It Telecom Siemens
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sits Soc It Telecom Siemens filed Critical Sits Soc It Telecom Siemens
Priority to IT8823033A priority Critical patent/IT1228107B/it
Publication of IT8823033A0 publication Critical patent/IT8823033A0/it
Priority to US07/446,022 priority patent/US5012210A/en
Priority to DE68915134T priority patent/DE68915134T2/de
Priority to EP89203108A priority patent/EP0375016B1/en
Priority to ES89203108T priority patent/ES2051991T3/es
Priority to AU46790/89A priority patent/AU629273B2/en
Priority to NO895098A priority patent/NO174315C/no
Priority to FI896118A priority patent/FI94575C/fi
Application granted granted Critical
Publication of IT1228107B publication Critical patent/IT1228107B/it

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)
IT8823033A 1988-12-21 1988-12-21 Perfezionamenti ai filtri passa banda a pettine nel campo delle microonde IT1228107B (it)

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)

* Cited by examiner, † Cited by third party
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
EP3485528A4 (en) 2016-07-18 2020-03-04 CommScope Italy S.r.l. TUBULAR INLINE FILTERS SUITABLE FOR CELLULAR APPLICATIONS AND RELATED METHODS

Family Cites Families (8)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
NO895098D0 (no) 1989-12-18
NO895098L (no) 1990-06-22
DE68915134T2 (de) 1994-09-08
NO174315C (no) 1994-04-13
DE68915134D1 (de) 1994-06-09
EP0375016A3 (en) 1991-03-20
ES2051991T3 (es) 1994-07-01
AU4679089A (en) 1990-06-28
US5012210A (en) 1991-04-30
FI94575B (fi) 1995-06-15
FI896118A0 (fi) 1989-12-20
NO174315B (no) 1994-01-03
EP0375016B1 (en) 1994-05-04
EP0375016A2 (en) 1990-06-27
FI94575C (fi) 1995-09-25
AU629273B2 (en) 1992-10-01
IT8823033A0 (it) 1988-12-21

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Legal Events

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19961218