JPS5748801A - Dielectric substance filter - Google Patents

Dielectric substance filter

Info

Publication number
JPS5748801A
JPS5748801A JP12402180A JP12402180A JPS5748801A JP S5748801 A JPS5748801 A JP S5748801A JP 12402180 A JP12402180 A JP 12402180A JP 12402180 A JP12402180 A JP 12402180A JP S5748801 A JPS5748801 A JP S5748801A
Authority
JP
Japan
Prior art keywords
dielectric substance
inner conductor
coupling
width
substance
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
JP12402180A
Other languages
Japanese (ja)
Other versions
JPS6257122B2 (en
Inventor
Yoshio Masuda
Atsushi Fukazawa
Takuro Sato
Tatsumasa 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
Application filed by Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP12402180A priority Critical patent/JPS5748801A/en
Priority to EP81102867A priority patent/EP0038996B1/en
Priority to US06/254,071 priority patent/US4386328A/en
Priority to DE8181102867T priority patent/DE3164402D1/en
Priority to CA000375590A priority patent/CA1162622A/en
Publication of JPS5748801A publication Critical patent/JPS5748801A/en
Publication of JPS6257122B2 publication Critical patent/JPS6257122B2/ja
Granted 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
    • H01P1/205—Comb or interdigital filters; Cascaded coaxial cavities
    • H01P1/2056—Comb filters or interdigital filters with metallised resonator holes in a dielectric block

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

PURPOSE:To achieve a dielectric substance filter with low cost, small size and good reproducibility for electric characteristics, by providing a plate dielectric substance in a closed metallic housing, inner conductor formed in it and input/output coupling means, and forming grooves between the inner conductors to the dielectric substance. CONSTITUTION:A flat plate dielectric substance 51 and a coupling antenna 4 being an input/output means are provided in a metallic case 3, and an inner conductor 51a having circular cross section is provided in parallel in the flat plate of the substance 51. The inner conductor 51a forms a 1/4 wavelength resonator and it is shortened on a lower surface 3-1 of the case 3. Cutting grooves 52 having W width and (l) length are provided to the dielectric substance 51 in parallel with the inner conductor 51a. Electric field coupling between the inner conductors 51a is rapidly decreased through the lowering in the equivalent dielectric constant of the dielectric substance due to the presence of air, the magnetic flux phi is almost zero around the open end B of the inner conductor and the electric field (e) is about maximum. A required resonator coupling can be formed, by fixing one of width or length of the grooves 52 and changing another, allowing to achieve a filter with a suitable band width.
JP12402180A 1980-04-28 1980-09-09 Dielectric substance filter Granted JPS5748801A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP12402180A JPS5748801A (en) 1980-09-09 1980-09-09 Dielectric substance filter
EP81102867A EP0038996B1 (en) 1980-04-28 1981-04-14 A high frequency filter
US06/254,071 US4386328A (en) 1980-04-28 1981-04-14 High frequency filter
DE8181102867T DE3164402D1 (en) 1980-04-28 1981-04-14 A high frequency filter
CA000375590A CA1162622A (en) 1980-04-28 1981-04-15 High frequency filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12402180A JPS5748801A (en) 1980-09-09 1980-09-09 Dielectric substance filter

Publications (2)

Publication Number Publication Date
JPS5748801A true JPS5748801A (en) 1982-03-20
JPS6257122B2 JPS6257122B2 (en) 1987-11-30

Family

ID=14875061

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12402180A Granted JPS5748801A (en) 1980-04-28 1980-09-09 Dielectric substance filter

Country Status (1)

Country Link
JP (1) JPS5748801A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58114601A (en) * 1981-12-28 1983-07-08 Murata Mfg Co Ltd Distribution constant type filter
JPS58194403A (en) * 1982-05-10 1983-11-12 Oki Electric Ind Co Ltd Dielectric filter
JPS6064502A (en) * 1983-09-17 1985-04-13 Nippon Dengiyou Kosaku Kk Dielectric resonator type band-pass filter
JPS6152003A (en) * 1984-08-21 1986-03-14 Murata Mfg Co Ltd Dielectric filter
JPS6170801A (en) * 1984-09-14 1986-04-11 Fujitsu Ltd Method for constituting dielectric filter
JPS61140604U (en) * 1985-02-22 1986-08-30
JPS6268308U (en) * 1985-10-19 1987-04-28
JPS6271901U (en) * 1985-10-22 1987-05-08
JPS6340009U (en) * 1986-09-02 1988-03-15
JPS6364402A (en) * 1986-09-04 1988-03-22 Murata Mfg Co Ltd Dielectric filter
JPS6364403A (en) * 1986-09-04 1988-03-22 Murata Mfg Co Ltd Dielectric filter
WO2012043739A1 (en) * 2010-09-29 2012-04-05 京セラ株式会社 Coaxial resonator and dielectric filter, wireless communications module, and wireless communications device using same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3505618A (en) * 1966-06-08 1970-04-07 Marconi Co Ltd Microwave filters
JPS5399849A (en) * 1977-02-14 1978-08-31 Murata Manufacturing Co Interrdigital filter
JPS5568702A (en) * 1978-11-20 1980-05-23 Oki Electric Ind Co Ltd Dielectric filter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3505618A (en) * 1966-06-08 1970-04-07 Marconi Co Ltd Microwave filters
JPS5399849A (en) * 1977-02-14 1978-08-31 Murata Manufacturing Co Interrdigital filter
JPS5568702A (en) * 1978-11-20 1980-05-23 Oki Electric Ind Co Ltd Dielectric filter

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS638642B2 (en) * 1981-12-28 1988-02-24 Murata Manufacturing Co
JPS58114601A (en) * 1981-12-28 1983-07-08 Murata Mfg Co Ltd Distribution constant type filter
JPS58194403A (en) * 1982-05-10 1983-11-12 Oki Electric Ind Co Ltd Dielectric filter
JPS6064502A (en) * 1983-09-17 1985-04-13 Nippon Dengiyou Kosaku Kk Dielectric resonator type band-pass filter
JPS6152003A (en) * 1984-08-21 1986-03-14 Murata Mfg Co Ltd Dielectric filter
JPS6170801A (en) * 1984-09-14 1986-04-11 Fujitsu Ltd Method for constituting dielectric filter
JPH0261166B2 (en) * 1984-09-14 1990-12-19 Fujitsu Ltd
JPS61140604U (en) * 1985-02-22 1986-08-30
JPS6268308U (en) * 1985-10-19 1987-04-28
JPH051122Y2 (en) * 1985-10-19 1993-01-13
JPS6271901U (en) * 1985-10-22 1987-05-08
JPS6340009U (en) * 1986-09-02 1988-03-15
JPS6364402A (en) * 1986-09-04 1988-03-22 Murata Mfg Co Ltd Dielectric filter
JPS6364403A (en) * 1986-09-04 1988-03-22 Murata Mfg Co Ltd Dielectric filter
JPH061842B2 (en) * 1986-09-04 1994-01-05 株式会社村田製作所 Dielectric filter
JPH0612842B2 (en) * 1986-09-04 1994-02-16 株式会社村田製作所 Dielectric filter
WO2012043739A1 (en) * 2010-09-29 2012-04-05 京セラ株式会社 Coaxial resonator and dielectric filter, wireless communications module, and wireless communications device using same
US9153852B2 (en) 2010-09-29 2015-10-06 Kyocera Corporation Coaxial resonator, and dielectric filter, wireless communication module, and wireless communication device employing the coaxial resonator

Also Published As

Publication number Publication date
JPS6257122B2 (en) 1987-11-30

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