SE8603590D0 - ELECTROMAGNETIC FILTER DEVICE - Google Patents

ELECTROMAGNETIC FILTER DEVICE

Info

Publication number
SE8603590D0
SE8603590D0 SE8603590A SE8603590A SE8603590D0 SE 8603590 D0 SE8603590 D0 SE 8603590D0 SE 8603590 A SE8603590 A SE 8603590A SE 8603590 A SE8603590 A SE 8603590A SE 8603590 D0 SE8603590 D0 SE 8603590D0
Authority
SE
Sweden
Prior art keywords
axial
inductor
capacitor
case
pass filter
Prior art date
Application number
SE8603590A
Other languages
Swedish (sv)
Other versions
SE8603590L (en
Inventor
T Yorita
H Matsumoto
I Nakatsuji
Original Assignee
Murata Manufacturing Co
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 Murata Manufacturing Co filed Critical Murata Manufacturing Co
Publication of SE8603590D0 publication Critical patent/SE8603590D0/en
Publication of SE8603590L publication Critical patent/SE8603590L/en

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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Networks Using Active Elements (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

PURPOSE:To eliminate surely a spurious radiation over a wide band with small size by inserting an axial low-pass filter for eliminating a spurious radiation between a filter element in a case and an input/output port mounted to the case outer wall. CONSTITUTION:The axial low-pass filter 1 consists of an outer conductor 3 having an axial hole 2, a capacitor 4, an inductor 5 and a center conductor 6. The capacitor 4 and the inductor 5 are inserted alternately along the axial direction in the inside of the hollow outer conductor 3. The capacitor 4 consists of an outer capacitor electrode being the outer conductor 3 and a cylindrical inner capacitor electrode 8 fitted to the inside of he cylinder of a cylindrical dielectric 7, and the inductor 5 is connected to the electrode 8. The center conductor 6 is connected to each inductor 5 of the 1st stage and the final stage. When the dielectric coaxial resonator being a filter element is of 1/4 wavelength, since the axial low-pass filter 1 is constituted as the axial length of the same degree as that of the resonator, the axial low-pass filter 1 is assembled in the inside of the wall of the case 11 of the filter device or the space in the case in parallel with the resonator 10.
SE8603590A 1985-09-25 1986-08-26 ELECTROMAGNETIC FILTER DEVICE SE8603590L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60211891A JPS6272201A (en) 1985-09-25 1985-09-25 Filter device

Publications (2)

Publication Number Publication Date
SE8603590D0 true SE8603590D0 (en) 1986-08-26
SE8603590L SE8603590L (en) 1987-03-26

Family

ID=16613348

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8603590A SE8603590L (en) 1985-09-25 1986-08-26 ELECTROMAGNETIC FILTER DEVICE

Country Status (3)

Country Link
JP (1) JPS6272201A (en)
NO (1) NO170180C (en)
SE (1) SE8603590L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0251404U (en) * 1988-10-03 1990-04-11
JPH02209001A (en) * 1989-02-09 1990-08-20 Fuji Elelctrochem Co Ltd Branching filter
JPH03235503A (en) * 1990-02-13 1991-10-21 Fuji Elelctrochem Co Ltd Dielectric filter branching device
US10903811B2 (en) * 2017-08-18 2021-01-26 Avx Corporation Coaxial RF filter with discoidal capacitor

Also Published As

Publication number Publication date
NO170180B (en) 1992-06-09
NO170180C (en) 1992-09-16
NO863412L (en) 1987-03-26
NO863412D0 (en) 1986-08-26
SE8603590L (en) 1987-03-26
JPS6272201A (en) 1987-04-02

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