JPS5767307A - Variable phase shifter - Google Patents

Variable phase shifter

Info

Publication number
JPS5767307A
JPS5767307A JP14319480A JP14319480A JPS5767307A JP S5767307 A JPS5767307 A JP S5767307A JP 14319480 A JP14319480 A JP 14319480A JP 14319480 A JP14319480 A JP 14319480A JP S5767307 A JPS5767307 A JP S5767307A
Authority
JP
Japan
Prior art keywords
variation
coupler
varactor diode
phase shifter
variable phase
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
JP14319480A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Yasukawa
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.)
TDK Corp
Original Assignee
TDK Corp
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 TDK Corp filed Critical TDK Corp
Priority to JP14319480A priority Critical patent/JPS5767307A/en
Publication of JPS5767307A publication Critical patent/JPS5767307A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/18—Networks for phase shifting
    • H03H7/20—Two-port phase shifters providing an adjustable phase shift

Landscapes

  • Filters And Equalizers (AREA)

Abstract

PURPOSE:To improve VSWR and insertion loss characteristics, by connecting a varactor diode as the terminal of a troidal core type 3dB coupler. CONSTITUTION:Termials other than input and output terminals 1 and 4 of a 3dB coupler 3 consisting of a ferrite troidal core are terminated by a varactor diode 4. A variable voltage source 5 is given to the varactor diode 4, and a variation is 50-2PF approximately for a variation of 70-20V, and the extent of the phase shift at this time has a variation of 80 deg. approximately. Since the capacity is very small because the 3dB coupler consists of the troidal core, the effect in VHF and HF bands is large.
JP14319480A 1980-10-14 1980-10-14 Variable phase shifter Pending JPS5767307A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14319480A JPS5767307A (en) 1980-10-14 1980-10-14 Variable phase shifter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14319480A JPS5767307A (en) 1980-10-14 1980-10-14 Variable phase shifter

Publications (1)

Publication Number Publication Date
JPS5767307A true JPS5767307A (en) 1982-04-23

Family

ID=15333049

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14319480A Pending JPS5767307A (en) 1980-10-14 1980-10-14 Variable phase shifter

Country Status (1)

Country Link
JP (1) JPS5767307A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51144549A (en) * 1975-06-06 1976-12-11 Yagi Antenna Co Ltd High frequency band phase shifter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51144549A (en) * 1975-06-06 1976-12-11 Yagi Antenna Co Ltd High frequency band phase shifter

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