JPS5612117A - Variable phase shifter - Google Patents

Variable phase shifter

Info

Publication number
JPS5612117A
JPS5612117A JP8772479A JP8772479A JPS5612117A JP S5612117 A JPS5612117 A JP S5612117A JP 8772479 A JP8772479 A JP 8772479A JP 8772479 A JP8772479 A JP 8772479A JP S5612117 A JPS5612117 A JP S5612117A
Authority
JP
Japan
Prior art keywords
amplitude
phase
signal
theta
circuit
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
JP8772479A
Other languages
Japanese (ja)
Inventor
Chika Fukuda
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP8772479A priority Critical patent/JPS5612117A/en
Publication of JPS5612117A publication Critical patent/JPS5612117A/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

Abstract

PURPOSE:To make it possible to shift a phase while the amplitude of an output signal is prevented from varying in accordance with a phase shift value, by providing a phase shifting circuit, variable adding circuit and gain control amplifying circuit. CONSTITUTION:As signal E0 is applied to the input terminal, signals E1 and E2 appear at the outputs of phase shifting circuit 2. Here, E1 is in phase with the input signal and E2 is theta out of phase. Then, the maximum amplitude is obtained at angles of zero and theta and the minimum amplitude is obtained at theta/2 degrees. Next, resistances 6, 7 and 8 minimize the DC voltage at the intermediate terminal when the amplitude is maximum and maximizes it when the amplitude is minimum and LPF consisting of resistance 10 and capacitor 11 controls the amplitude of the signal input via capacitor 9 so that only the DC component of the intermediate terminal will be extracted and applied to the control terminal of amplifying circuit 12 to obtain an output.
JP8772479A 1979-07-10 1979-07-10 Variable phase shifter Pending JPS5612117A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8772479A JPS5612117A (en) 1979-07-10 1979-07-10 Variable phase shifter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8772479A JPS5612117A (en) 1979-07-10 1979-07-10 Variable phase shifter

Publications (1)

Publication Number Publication Date
JPS5612117A true JPS5612117A (en) 1981-02-06

Family

ID=13922852

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8772479A Pending JPS5612117A (en) 1979-07-10 1979-07-10 Variable phase shifter

Country Status (1)

Country Link
JP (1) JPS5612117A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6143812A (en) * 1984-08-08 1986-03-03 Nippon Telegr & Teleph Corp <Ntt> 90× branch circuit
JP2008064264A (en) * 2006-09-11 2008-03-21 Sony Corp Sucker device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4913645U (en) * 1972-05-08 1974-02-05

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4913645U (en) * 1972-05-08 1974-02-05

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6143812A (en) * 1984-08-08 1986-03-03 Nippon Telegr & Teleph Corp <Ntt> 90× branch circuit
JP2008064264A (en) * 2006-09-11 2008-03-21 Sony Corp Sucker device

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