JPS5489547A - Filter - Google Patents

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Publication number
JPS5489547A
JPS5489547A JP15965977A JP15965977A JPS5489547A JP S5489547 A JPS5489547 A JP S5489547A JP 15965977 A JP15965977 A JP 15965977A JP 15965977 A JP15965977 A JP 15965977A JP S5489547 A JPS5489547 A JP S5489547A
Authority
JP
Japan
Prior art keywords
impedance
length
value
frequency
resistor
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
JP15965977A
Other languages
Japanese (ja)
Inventor
Osahisa Furuya
Toshio Takahara
Hideo Ashida
Yoshikazu Doi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP15965977A priority Critical patent/JPS5489547A/en
Publication of JPS5489547A publication Critical patent/JPS5489547A/en
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
    • H01P1/203—Strip line filters
    • H01P1/2039—Galvanic coupling between Input/Output

Landscapes

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

Abstract

PURPOSE:To establish the filter simple in the circuit and excellent in the frequency passing block perofmance for higher frequency, by taking the impedance at the center frequency for the capacitor negligible small in comparison with the characteristic impedance. CONSTITUTION:The series circuit consisting of the resistor R1 and the stip line SL5 is connected between the input terminal 3 and ground. The value of the resistor R1 is equal to the value of the characteristic impedance of specified and the length of SL5 is determined to lambda/4 wave length of the specified center frequency fog of the filter 2. On the other hand, the length of the resistor R2 and SL6 is similarly selected at the output terminal 4. The SL7 having impedance Zo is provided between the input and outpt terminals 3 and 4, and the SL 8 of lambda/4 length is connected at the center of the junctions A and B. The capacitors 9 and 10 are connected to the parts 7a and 7b of SL7, and the capacitance value is selected as the value such that it can sufficiently be neglected to the impedance Zo at the frequency fog.
JP15965977A 1977-12-27 1977-12-27 Filter Pending JPS5489547A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15965977A JPS5489547A (en) 1977-12-27 1977-12-27 Filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15965977A JPS5489547A (en) 1977-12-27 1977-12-27 Filter

Publications (1)

Publication Number Publication Date
JPS5489547A true JPS5489547A (en) 1979-07-16

Family

ID=15698527

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15965977A Pending JPS5489547A (en) 1977-12-27 1977-12-27 Filter

Country Status (1)

Country Link
JP (1) JPS5489547A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6187403A (en) * 1984-10-04 1986-05-02 Alps Electric Co Ltd Frequency converting circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6187403A (en) * 1984-10-04 1986-05-02 Alps Electric Co Ltd Frequency converting circuit
JPH0247122B2 (en) * 1984-10-04 1990-10-18 Alps Electric Co Ltd

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