JPS54111264A - Phase modulation system - Google Patents
Phase modulation systemInfo
- 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
Links
Landscapes
- 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
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) |
-
1978
- 1978-02-21 JP JP1817578A patent/JPS54111264A/en active Pending
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