JPS5575307A - Oscillation device - Google Patents
Oscillation deviceInfo
- Publication number
- JPS5575307A JPS5575307A JP15021378A JP15021378A JPS5575307A JP S5575307 A JPS5575307 A JP S5575307A JP 15021378 A JP15021378 A JP 15021378A JP 15021378 A JP15021378 A JP 15021378A JP S5575307 A JPS5575307 A JP S5575307A
- Authority
- JP
- Japan
- Prior art keywords
- oscillation
- resonance
- frequency
- secure
- oscillation frequency
- 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
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/18—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance
- H03B5/1841—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a strip line resonator
- H03B5/1847—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a strip line resonator the active element in the amplifier being a semiconductor device
Landscapes
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
PURPOSE:To avoid lowering of the impedance at the collector side as well as to secure the even output voltage at the wide band by setting the resonance circuit at the collector side of the oscillation transistor so as to secure the resonance with the frequency a little lower than the oscillation frequency. CONSTITUTION:The lambda/4-type oscillator circuit at the UHF band consists of oscillation transistor 1, resonance line 2 forming the resonance circuit to decide the oscillation frequency, variable capacity element 3, fixed capacities 4 and 5, feedback capacity 6 and tuning voltage supply terminal 13 which gives the voltage to element 3 via DC bias resistances 7, 8 and 9 plus high resistance 12 respectively. Both inductance 14 and fixed capacity 5 are decided so as to secure the parallel resonance with the frequency which is a little lower than the oscillation frequency determined by line 2 and element 3. Accordingly, the impedance of the collector in transistor 1 increases with the oscillation frequency, thus avoiding lowering of the oscillation output voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15021378A JPS6040725B2 (en) | 1978-12-04 | 1978-12-04 | oscillation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15021378A JPS6040725B2 (en) | 1978-12-04 | 1978-12-04 | oscillation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5575307A true JPS5575307A (en) | 1980-06-06 |
| JPS6040725B2 JPS6040725B2 (en) | 1985-09-12 |
Family
ID=15491996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15021378A Expired JPS6040725B2 (en) | 1978-12-04 | 1978-12-04 | oscillation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6040725B2 (en) |
-
1978
- 1978-12-04 JP JP15021378A patent/JPS6040725B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6040725B2 (en) | 1985-09-12 |
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