JPS5528631A - Phase modulator - Google Patents

Phase modulator

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Publication number
JPS5528631A
JPS5528631A JP10189178A JP10189178A JPS5528631A JP S5528631 A JPS5528631 A JP S5528631A JP 10189178 A JP10189178 A JP 10189178A JP 10189178 A JP10189178 A JP 10189178A JP S5528631 A JPS5528631 A JP S5528631A
Authority
JP
Japan
Prior art keywords
phase
vector
signal
synthesized
operational amplifier
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
JP10189178A
Other languages
Japanese (ja)
Inventor
Toshiro Sasai
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP10189178A priority Critical patent/JPS5528631A/en
Publication of JPS5528631A publication Critical patent/JPS5528631A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To realize the vector syntesis phase modulator easy for design and adjustment and strong in the oscillation proof, by the 90° phase shifter and the adder using operational amplifiers.
CONSTITUTION: The modulation signal Vs fed to the input terminal 1 is inputted to the integration circuit consisting of the operational amplifier 3 and obtains the signal V's delayed in phase by 90° as the output. This phase shifted modulation signal V's is added and synthesized with the carrier signal Vl fed from the terminal 5 at the adder consisting of the input resistors 6 and 7, operational amplifier 8 and feedback resistor 9. At the output side of the operational amplifier 8, each signal is phase-shifted by 90° being V"s and V"l. The signal synthesized in vector is V0. Accordingly, the phase of the output synthesized vector is changed by keeping the carrier signal vector V'l constant and changing the modulation signal vector V"s greater, smaller, positive or negative. Accordingly, as the circuit can be constituted as the solidstate, the vibration proof is excellent.
COPYRIGHT: (C)1980,JPO&Japio
JP10189178A 1978-08-23 1978-08-23 Phase modulator Pending JPS5528631A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10189178A JPS5528631A (en) 1978-08-23 1978-08-23 Phase modulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10189178A JPS5528631A (en) 1978-08-23 1978-08-23 Phase modulator

Publications (1)

Publication Number Publication Date
JPS5528631A true JPS5528631A (en) 1980-02-29

Family

ID=14312543

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10189178A Pending JPS5528631A (en) 1978-08-23 1978-08-23 Phase modulator

Country Status (1)

Country Link
JP (1) JPS5528631A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59169260A (en) * 1983-03-17 1984-09-25 Iwatsu Electric Co Ltd Line circuit
JPS6269759A (en) * 1985-09-20 1987-03-31 Matsushita Electric Ind Co Ltd Telephone exchange off-hook state detection circuit
CN108736858A (en) * 2017-04-17 2018-11-02 天津大学（青岛）海洋工程研究院有限公司 A kind of novel phase shifter that high-precision is continuously adjustable

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59169260A (en) * 1983-03-17 1984-09-25 Iwatsu Electric Co Ltd Line circuit
JPS6269759A (en) * 1985-09-20 1987-03-31 Matsushita Electric Ind Co Ltd Telephone exchange off-hook state detection circuit
CN108736858A (en) * 2017-04-17 2018-11-02 天津大学（青岛）海洋工程研究院有限公司 A kind of novel phase shifter that high-precision is continuously adjustable

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