JPS54111264A - Phase modulation system - Google Patents

Phase modulation system

Info

Publication number
JPS54111264A
JPS54111264A JP1817578A JP1817578A JPS54111264A JP S54111264 A JPS54111264 A JP S54111264A JP 1817578 A JP1817578 A JP 1817578A JP 1817578 A JP1817578 A JP 1817578A JP S54111264 A JPS54111264 A JP S54111264A
Authority
JP
Japan
Prior art keywords
circuit
terminal
constitution
capacitors
constituted
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
JP1817578A
Other languages
Japanese (ja)
Inventor
Nobuo Sekiguchi
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.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
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 Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP1817578A priority Critical patent/JPS54111264A/en
Publication of JPS54111264A publication Critical patent/JPS54111264A/en
Pending legal-status Critical Current

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  • Amplitude Modulation (AREA)

Abstract

PURPOSE: To obtain a wide band characteristic in a simple constitution by not changing the constitution of a phase modulator but changing the constant.
CONSTITUTION: A phase modulator is constituted by hybrid circuit 1 and varactor diode 9. In this constitution, modulation input terminal 2 of circuit 1 is connected to modulated signal voltage source 5 through resistance corresponding to signal source impedance, and output terminal 3 is grounded through load resistance 7. Meanwhile, control terminal 4 is grounded through a resonance circuit consisting of inductance element 8 and varactor diode 9 and capacitor 10 in series, and the connection point of diode 9 and capacitor 10 is connected to terminal 11 for applying modulation signals. Meanwhile, capacitors 12 to 15, inductance coils 16 and 17, and pure resistance 18 are provided in circuit 1, and a π circuit is constituted by capacitors 12 and 13 and coil 16, and another π circuit is constituted by capacitors 14 and 15 and coil 17. Thus, signals applied to terminal 2 are phase-modulated and outputted from terminal 3.
COPYRIGHT: (C)1979,JPO&Japio
JP1817578A 1978-02-21 1978-02-21 Phase modulation system Pending JPS54111264A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1817578A JPS54111264A (en) 1978-02-21 1978-02-21 Phase modulation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1817578A JPS54111264A (en) 1978-02-21 1978-02-21 Phase modulation system

Publications (1)

Publication Number Publication Date
JPS54111264A true JPS54111264A (en) 1979-08-31

Family

ID=11964269

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1817578A Pending JPS54111264A (en) 1978-02-21 1978-02-21 Phase modulation system

Country Status (1)

Country Link
JP (1) JPS54111264A (en)

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