EP0324512A2 - Filtre diélectrique - Google Patents

Filtre diélectrique Download PDF

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Publication number
EP0324512A2
EP0324512A2 EP89102782A EP89102782A EP0324512A2 EP 0324512 A2 EP0324512 A2 EP 0324512A2 EP 89102782 A EP89102782 A EP 89102782A EP 89102782 A EP89102782 A EP 89102782A EP 0324512 A2 EP0324512 A2 EP 0324512A2
Authority
EP
European Patent Office
Prior art keywords
dielectric
resonators
conductive
resonator
filter according
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.)
Granted
Application number
EP89102782A
Other languages
German (de)
English (en)
Other versions
EP0324512B1 (fr
EP0324512A3 (en
Inventor
Atsushi Oki Electric Industry Co. Ltd. Fukasawa
Kenichiro Oki Electric Industry Co. Ltd. Hosoda
Takuro Oki Electric Industry Co. Ltd. Sato
Tatumasa Electric Industry Co. Ltd. Yoshida
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co Ltd
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
Priority claimed from JP57076565A external-priority patent/JPS58194402A/ja
Priority claimed from JP7656682A external-priority patent/JPS58194403A/ja
Application filed by Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority claimed from EP83104137A external-priority patent/EP0093956B1/fr
Publication of EP0324512A2 publication Critical patent/EP0324512A2/fr
Publication of EP0324512A3 publication Critical patent/EP0324512A3/en
Application granted granted Critical
Publication of EP0324512B1 publication Critical patent/EP0324512B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01P1/2056—Comb filters or interdigital filters with metallised resonator holes in a dielectric block

Definitions

  • a dielectric filter which has a plurality of dielectric resonators has been known.
  • a dielectric filter has the shortcoming that the size of each resonator is rather large even when the dielectric constant of the material of the resonators is the largest possible.
  • K T(i) The coupling coefficient K T(i) between two adjacent resonators in the structure of Fig.5 is derived from the above equations (1), (2) and (3), and the result is shown in the equation (4).
  • the trimming is accomplished by illuminating the electrode with a laser beam from the outside of the resonator.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
EP89102782A 1982-05-10 1983-04-27 Filtre diélectrique Expired - Lifetime EP0324512B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP57076565A JPS58194402A (ja) 1982-05-10 1982-05-10 誘電体フイルタ
JP76566/82 1982-05-10
JP76565/82 1982-05-10
JP7656682A JPS58194403A (ja) 1982-05-10 1982-05-10 誘電体フイルタ
EP83104137A EP0093956B1 (fr) 1982-05-10 1983-04-27 Filtre diélectrique

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP83104137.1 Division 1983-04-27

Publications (3)

Publication Number Publication Date
EP0324512A2 true EP0324512A2 (fr) 1989-07-19
EP0324512A3 EP0324512A3 (en) 1989-07-26
EP0324512B1 EP0324512B1 (fr) 1994-11-02

Family

ID=27226186

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89102782A Expired - Lifetime EP0324512B1 (fr) 1982-05-10 1983-04-27 Filtre diélectrique

Country Status (1)

Country Link
EP (1) EP0324512B1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2283856A (en) * 1990-04-05 1995-05-17 Gen Electric Method of adjusting operating characteristics of microwave components
GB2284094A (en) * 1990-04-05 1995-05-24 Gen Electric Microwave component having tailored operating characteristics and method of tailoring
CN114079129A (zh) * 2020-08-13 2022-02-22 乾坤科技股份有限公司 具有多层谐振器的介电滤波器

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1228011B (de) * 1963-07-02 1966-11-03 Siemens Ag Durchstimmbares Bandfilter fuer sehr kurze elektromagnetische Wellen
DE1929672A1 (de) * 1969-06-11 1970-12-17 Siemens Ag Aus Leitungselementen bestehendes Netzwerk fuer elektrische Schwingungen
DE2805965A1 (de) * 1977-02-14 1978-08-17 Murata Manufacturing Co Interdigital-bandpassfilter
WO1981001079A1 (fr) * 1979-10-15 1981-04-16 Motorola Inc Structure a film mince pour substrats en ceramique
EP0028403A1 (fr) * 1979-11-05 1981-05-13 CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A. Tronçon de ligne en dérivation pour l'adaptation de circuits à microbandes
JPS5657302A (en) * 1979-10-15 1981-05-19 Murata Mfg Co Ltd Microwave device using coaxial resonator
EP0038996A1 (fr) * 1980-04-28 1981-11-04 Oki Electric Industry Company, Limited Filtre aux hautes fréquences
EP0069651A1 (fr) * 1981-07-07 1983-01-12 Thomson-Csf Filtre à résonateurs, à pointe d'affaiblissement infini réglable

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1228011B (de) * 1963-07-02 1966-11-03 Siemens Ag Durchstimmbares Bandfilter fuer sehr kurze elektromagnetische Wellen
DE1929672A1 (de) * 1969-06-11 1970-12-17 Siemens Ag Aus Leitungselementen bestehendes Netzwerk fuer elektrische Schwingungen
DE2805965A1 (de) * 1977-02-14 1978-08-17 Murata Manufacturing Co Interdigital-bandpassfilter
WO1981001079A1 (fr) * 1979-10-15 1981-04-16 Motorola Inc Structure a film mince pour substrats en ceramique
JPS5657302A (en) * 1979-10-15 1981-05-19 Murata Mfg Co Ltd Microwave device using coaxial resonator
EP0028403A1 (fr) * 1979-11-05 1981-05-13 CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A. Tronçon de ligne en dérivation pour l'adaptation de circuits à microbandes
EP0038996A1 (fr) * 1980-04-28 1981-11-04 Oki Electric Industry Company, Limited Filtre aux hautes fréquences
EP0069651A1 (fr) * 1981-07-07 1983-01-12 Thomson-Csf Filtre à résonateurs, à pointe d'affaiblissement infini réglable

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 5, no. 117 (E-67)[789], 28th July 1981; & JP-A-56 057 302 (MURATA SEISAKUSHO K.K.) 19-05-1981 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2283856A (en) * 1990-04-05 1995-05-17 Gen Electric Method of adjusting operating characteristics of microwave components
GB2284094A (en) * 1990-04-05 1995-05-24 Gen Electric Microwave component having tailored operating characteristics and method of tailoring
GB2284095A (en) * 1990-04-05 1995-05-24 Gen Electric Microwave component having tailored operating characteristics and method of tailoring
GB2283856B (en) * 1990-04-05 1995-09-20 Gen Electric Microwave component having tailored operating characteristics and method of tailoring
GB2284095B (en) * 1990-04-05 1995-09-20 Gen Electric Microwave component having tailored operating characteristics and method of tailoring
GB2284094B (en) * 1990-04-05 1995-11-29 Gen Electric Microwave component having tailored operating characteristics and method of tailoring
CN114079129A (zh) * 2020-08-13 2022-02-22 乾坤科技股份有限公司 具有多层谐振器的介电滤波器
US11862835B2 (en) 2020-08-13 2024-01-02 Cyntec Co., Ltd. Dielectric filter with multilayer resonator

Also Published As

Publication number Publication date
EP0324512B1 (fr) 1994-11-02
EP0324512A3 (en) 1989-07-26

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