JPS55114003A - Higher harmonic filter - Google Patents

Higher harmonic filter

Info

Publication number
JPS55114003A
JPS55114003A JP2067379A JP2067379A JPS55114003A JP S55114003 A JPS55114003 A JP S55114003A JP 2067379 A JP2067379 A JP 2067379A JP 2067379 A JP2067379 A JP 2067379A JP S55114003 A JPS55114003 A JP S55114003A
Authority
JP
Japan
Prior art keywords
stubs
lambdav
wavelength
tip
higher harmonics
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
JP2067379A
Other languages
Japanese (ja)
Other versions
JPS625361B2 (en
Inventor
Nobushige Fukuoka
Hiroshi Ono
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2067379A priority Critical patent/JPS55114003A/en
Publication of JPS55114003A publication Critical patent/JPS55114003A/en
Publication of JPS625361B2 publication Critical patent/JPS625361B2/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
    • H01P1/212—Frequency-selective devices, e.g. filters suppressing or attenuating harmonic frequencies

Landscapes

  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

PURPOSE:To increase the attenuation of higher harmonics by providing open-tip and short-tip stubs, set a quarter as long as signal wavelength, which remove higher harmonics of a signal in parallel on both sides of a line whose wavelength is a quarter as long as the signal wavelength. CONSTITUTION:Stubs 45 and 47, provided on both sides of line 42 with wavelength a quarter as long as wavelength lambdav of a carrier frequency, are short-tip stubs of lambdav/6 and lambdav/8 in length which remove higher harmonics of 3fv and 4fv. Further, stubs 44 and 46, connected in parallel to stubs 45 and 47 and provided on both sides of line 42, are open-tip stubs of lambdav/20 and lambdav/8 in length which remove higher harmonics of 5fv and 2fv.
JP2067379A 1979-02-26 1979-02-26 Higher harmonic filter Granted JPS55114003A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2067379A JPS55114003A (en) 1979-02-26 1979-02-26 Higher harmonic filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2067379A JPS55114003A (en) 1979-02-26 1979-02-26 Higher harmonic filter

Publications (2)

Publication Number Publication Date
JPS55114003A true JPS55114003A (en) 1980-09-03
JPS625361B2 JPS625361B2 (en) 1987-02-04

Family

ID=12033710

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2067379A Granted JPS55114003A (en) 1979-02-26 1979-02-26 Higher harmonic filter

Country Status (1)

Country Link
JP (1) JPS55114003A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0084854A2 (en) * 1982-01-22 1983-08-03 Nec Corporation Resonator type bandpass filter
JPS6178401U (en) * 1984-10-29 1986-05-26
EP0373452A2 (en) * 1988-12-02 1990-06-20 Fujitsu Limited A second-harmonic-wave choking filter

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63187370A (en) * 1987-01-30 1988-08-02 Fujitsu Ltd System for deciding graphic processing unit
JPH0271382A (en) * 1988-09-07 1990-03-09 Fujitsu Ltd Production system for graphic data

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0084854A2 (en) * 1982-01-22 1983-08-03 Nec Corporation Resonator type bandpass filter
JPS6178401U (en) * 1984-10-29 1986-05-26
EP0373452A2 (en) * 1988-12-02 1990-06-20 Fujitsu Limited A second-harmonic-wave choking filter

Also Published As

Publication number Publication date
JPS625361B2 (en) 1987-02-04

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