JPS5683103A - Frequency discriminating circuit - Google Patents
Frequency discriminating circuitInfo
- Publication number
- JPS5683103A JPS5683103A JP16008579A JP16008579A JPS5683103A JP S5683103 A JPS5683103 A JP S5683103A JP 16008579 A JP16008579 A JP 16008579A JP 16008579 A JP16008579 A JP 16008579A JP S5683103 A JPS5683103 A JP S5683103A
- Authority
- JP
- Japan
- Prior art keywords
- resonator
- lines
- signal
- line
- coupling 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D9/00—Demodulation or transference of modulation of modulated electromagnetic waves
- H03D9/02—Demodulation using distributed inductance and capacitance, e.g. in feeder lines
- H03D9/04—Demodulation using distributed inductance and capacitance, e.g. in feeder lines for angle-modulated oscillations
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Abstract
PURPOSE:To make the oscillation frequency stable at all times, by performing phase detection for the signal through a coupling circuit between a resonator and a line, with the signal through the coupling circuit between the resonator and the line and picking up the phase difference of both the signals as the frequency discriminating output. CONSTITUTION:To the coupling section between lines 12, 14 and a dielectric resonator 13 for microstrip lines 12 and 14, end opposite to an oscillator FET1 is short-circuited with lines 15a, 15b. Further, a the extension of the lines 12, 14 is made wider to form a 90 deg. hybrid coupler 15. Further, the end of extension of the lines 12, 14 of the coupler is grounded via diodes 16, 17 of opposite polarity. That is, a phase detector 20 is constituted with the coupler 15 and the diodes 16, 17, and a signal through the coupling circuit with the resonator 13 and the line 12 is phase-detected with the signal through the coupling circuit between the resonator 13 and the line 14, and the phase difference between both the signals is picked up as a frequency discriminating output VD. Thus, the oscillated frequency can always be stabilized.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16008579A JPS5683103A (en) | 1979-12-10 | 1979-12-10 | Frequency discriminating circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16008579A JPS5683103A (en) | 1979-12-10 | 1979-12-10 | Frequency discriminating circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5683103A true JPS5683103A (en) | 1981-07-07 |
JPS6156888B2 JPS6156888B2 (en) | 1986-12-04 |
Family
ID=15707534
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16008579A Granted JPS5683103A (en) | 1979-12-10 | 1979-12-10 | Frequency discriminating circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5683103A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0091201A1 (en) * | 1982-04-01 | 1983-10-12 | British Telecommunications | Microwave discriminator |
-
1979
- 1979-12-10 JP JP16008579A patent/JPS5683103A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0091201A1 (en) * | 1982-04-01 | 1983-10-12 | British Telecommunications | Microwave discriminator |
Also Published As
Publication number | Publication date |
---|---|
JPS6156888B2 (en) | 1986-12-04 |
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