JPS57123701A - Band filter capable of tuning to prescribed number of discrete frequency distributed in wide frequency band - Google Patents

Band filter capable of tuning to prescribed number of discrete frequency distributed in wide frequency band

Info

Publication number
JPS57123701A
JPS57123701A JP56198317A JP19831781A JPS57123701A JP S57123701 A JPS57123701 A JP S57123701A JP 56198317 A JP56198317 A JP 56198317A JP 19831781 A JP19831781 A JP 19831781A JP S57123701 A JPS57123701 A JP S57123701A
Authority
JP
Japan
Prior art keywords
band
tuning
prescribed number
filter capable
distributed
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.)
Pending
Application number
JP56198317A
Other languages
English (en)
Inventor
Booke Jiru
Doubuariyuburi Buazuyudeo
Deyubo Jieraaru
Jiyatsuku Robeeru Nik Mishieru
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NASHIONAARE DECHIYUUDO E DO CO
NASHIONAARE DECHIYUUDO E DO KONSUTORAKUSHION DE MONIYUURU TABIASHION SOC
Original Assignee
NASHIONAARE DECHIYUUDO E DO CO
NASHIONAARE DECHIYUUDO E DO KONSUTORAKUSHION DE MONIYUURU TABIASHION SOC
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 NASHIONAARE DECHIYUUDO E DO CO, NASHIONAARE DECHIYUUDO E DO KONSUTORAKUSHION DE MONIYUURU TABIASHION SOC filed Critical NASHIONAARE DECHIYUUDO E DO CO
Publication of JPS57123701A publication Critical patent/JPS57123701A/ja
Pending legal-status Critical Current

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
    • H01P1/202—Coaxial filters

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
JP56198317A 1980-12-10 1981-12-09 Band filter capable of tuning to prescribed number of discrete frequency distributed in wide frequency band Pending JPS57123701A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8026217A FR2495844A1 (fr) 1980-12-10 1980-12-10 Filtre passe-bande accordable sur un nombre predetermine de frequences discretes reparties dans une large bande de frequences

Publications (1)

Publication Number Publication Date
JPS57123701A true JPS57123701A (en) 1982-08-02

Family

ID=9248910

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56198317A Pending JPS57123701A (en) 1980-12-10 1981-12-09 Band filter capable of tuning to prescribed number of discrete frequency distributed in wide frequency band

Country Status (5)

Country Link
US (1) US4472695A (ja)
EP (1) EP0053986A3 (ja)
JP (1) JPS57123701A (ja)
FR (1) FR2495844A1 (ja)
WO (1) WO1986003890A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000030205A1 (en) * 1998-11-12 2000-05-25 Mitsubishi Denki Kabushiki Kaisha Low-pass filter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5065121A (en) * 1988-03-29 1991-11-12 Rf Products, Inc. Switchable resonator device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2630490A (en) * 1946-01-03 1953-03-03 Paul I Richards Coaxial transmission line filter
US3546633A (en) * 1966-01-04 1970-12-08 Gen Electric Electrically tunable microwave band-stop switch
US3444485A (en) * 1967-03-17 1969-05-13 Bell Telephone Labor Inc Single adjustment,variable selectivity-constant frequency coaxial transmission line filter
US3569874A (en) * 1967-08-28 1971-03-09 Nippon Electric Co Microwave switching device employing a reed switch element
US3927347A (en) * 1974-03-22 1975-12-16 Varian Associates Microwave tube using electronically tunable cavity resonator
US4004257A (en) * 1975-07-09 1977-01-18 Vitek Electronics, Inc. Transmission line filter
US4066988A (en) * 1976-09-07 1978-01-03 Stanford Research Institute Electromagnetic resonators having slot-located switches for tuning to different frequencies
US4179673A (en) * 1977-02-14 1979-12-18 Murata Manufacturing Co., Ltd. Interdigital filter
US4127829A (en) * 1977-03-28 1978-11-28 Microwave Development Labs. Inc. Fail-safe power combining and switching network

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000030205A1 (en) * 1998-11-12 2000-05-25 Mitsubishi Denki Kabushiki Kaisha Low-pass filter
US6255920B1 (en) 1998-11-12 2001-07-03 Mitsubishi Denki Kabushiki Kaisha Low-pass filter

Also Published As

Publication number Publication date
FR2495844A1 (fr) 1982-06-11
EP0053986A2 (fr) 1982-06-16
US4472695A (en) 1984-09-18
EP0053986A3 (fr) 1982-07-21
WO1986003890A1 (fr) 1986-07-03
FR2495844B1 (ja) 1984-05-11

Similar Documents

Publication Publication Date Title
DE3164402D1 (en) A high frequency filter
DE2966107D1 (en) High frequency wave guide filter
GB2068432B (en) Filter and method of making same
GB2165098B (en) Radio frequency filters
JPS5624151A (en) Manufacture of filter structure
GB2039419B (en) High frequency filter
JPS5732141A (en) Frequency variable receiver
GB2030407B (en) Acustic wave resonators and filters
JPS5530295A (en) Odd degree elliptical function narrow band microwave filter
GB2141299B (en) Variable frequency oscillator
DE3164039D1 (en) Adjustable and selective electrical filters and methods of tuning them
JPS5588403A (en) High frequency filter
GB2080057B (en) Improvements in and relating to frequency synthesizers
JPS56119201A (en) Band for watch and other accesory
GB2032213B (en) Band pass filter
JPS56138318A (en) Elastic wave band pass electric filter
JPS57123701A (en) Band filter capable of tuning to prescribed number of discrete frequency distributed in wide frequency band
JPS56155608A (en) Manufacture of filter medium
DE3379885D1 (en) Surface-acoustic wave filter and method of producing the filter
JPS57194602A (en) Square waveguide band filter with high frequency selectivity
JPS5357725A (en) High frequency inductive m band pass filter
GB8411247D0 (en) Filter tunable to microwave frequencies
DE3373046D1 (en) Variable frequency oscillator
GB8530190D0 (en) Radio frequency filter
GB8319601D0 (en) Variable frequency oscillator