JPS5588409A - Wide-band frequency modulation device - Google Patents
Wide-band frequency modulation deviceInfo
- Publication number
- JPS5588409A JPS5588409A JP16242578A JP16242578A JPS5588409A JP S5588409 A JPS5588409 A JP S5588409A JP 16242578 A JP16242578 A JP 16242578A JP 16242578 A JP16242578 A JP 16242578A JP S5588409 A JPS5588409 A JP S5588409A
- Authority
- JP
- Japan
- Prior art keywords
- diode
- modulation signal
- circuit
- variable capacity
- wide
- 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
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Abstract
PURPOSE: To increase the band width of the oscillation frequency by correcting the gain/loss caused by the amplifier circuit not only by the resonance circuit but by the variable capacity diode inserted into the positive feedback circuit.
CONSTITUTION: The modulation signal applied to terminal 8 is applied to variable capacity diode 17 through coil 18 as well as to variable capacity diode 4. Here coil 19 gives the by-pass to the modulation signal applied to diode 17, and capacitor 20 blocks the modulation signal each. When the capacity value of diode 17 varies by the modulation signal simultaneously with the resonance frequency of resonance circuit 7, the resonance frequency of circuit 7 increases by the modulation signal. And the capacity of diode 17 is decreased and increased with the increased and decreased oscillation frequencies respectively.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16242578A JPS5588409A (en) | 1978-12-26 | 1978-12-26 | Wide-band frequency modulation device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16242578A JPS5588409A (en) | 1978-12-26 | 1978-12-26 | Wide-band frequency modulation device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5588409A true JPS5588409A (en) | 1980-07-04 |
Family
ID=15754352
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16242578A Pending JPS5588409A (en) | 1978-12-26 | 1978-12-26 | Wide-band frequency modulation device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5588409A (en) |
-
1978
- 1978-12-26 JP JP16242578A patent/JPS5588409A/en active Pending
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