FR2384382A1 - Dispositif de limitation du taux d'harmoniques d'un oscillateur - Google Patents
Dispositif de limitation du taux d'harmoniques d'un oscillateurInfo
- Publication number
- FR2384382A1 FR2384382A1 FR7707492A FR7707492A FR2384382A1 FR 2384382 A1 FR2384382 A1 FR 2384382A1 FR 7707492 A FR7707492 A FR 7707492A FR 7707492 A FR7707492 A FR 7707492A FR 2384382 A1 FR2384382 A1 FR 2384382A1
- Authority
- FR
- France
- Prior art keywords
- same control
- given level
- lies above
- circuit
- controlled oscillator
- 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
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
- H03B5/1237—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator
- H03B5/124—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance
- H03B5/1243—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance the means comprising voltage variable capacitance diodes
-
- 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
- H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
- H03B2200/003—Circuit elements of oscillators
- H03B2200/004—Circuit elements of oscillators including a variable capacitance, e.g. a varicap, a varactor or a variable capacitance of a diode or transistor
-
- 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
- H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
- H03B2200/006—Functional aspects of oscillators
- H03B2200/0086—Functional aspects of oscillators relating to the Q factor or damping of the resonant circuit
-
- 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
- H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
- H03B2201/02—Varying the frequency of the oscillations by electronic means
- H03B2201/0208—Varying the frequency of the oscillations by electronic means the means being an element with a variable capacitance, e.g. capacitance diode
Landscapes
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Abstract
L'invention concerne les oscillateurs de la gamme des très hautes fréquences accordables au moyen d'une varicap. Elle consiste à placer un circuit résonnant accordable identique à celui de l'oscillateur en parallèle sur la charge et à former une tension de polarisation de la seconde varicap maintenant le taux d'harmonique ? aussi bas que possible à partir de la tension de commande de la première varicap et de la tension continue d'alimentation de l'oscillateur. L'invention est applicable aux générateurs d'onde entretenue accordables dans une bande de fréquence proche d'une octave.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7707492A FR2384382A1 (fr) | 1977-03-14 | 1977-03-14 | Dispositif de limitation du taux d'harmoniques d'un oscillateur |
GB9024/78A GB1593723A (en) | 1977-03-14 | 1978-03-07 | Ultra high frequency oscillators |
US05/884,390 US4146850A (en) | 1977-03-14 | 1978-03-08 | Tunable uhf oscillator with harmonic limitation |
DE2811080A DE2811080C2 (de) | 1977-03-14 | 1978-03-14 | Durch Spannungsänderung abstimmbarer Hochfrequenz-Oszillator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7707492A FR2384382A1 (fr) | 1977-03-14 | 1977-03-14 | Dispositif de limitation du taux d'harmoniques d'un oscillateur |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2384382A1 true FR2384382A1 (fr) | 1978-10-13 |
FR2384382B1 FR2384382B1 (fr) | 1982-02-12 |
Family
ID=9188041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7707492A Granted FR2384382A1 (fr) | 1977-03-14 | 1977-03-14 | Dispositif de limitation du taux d'harmoniques d'un oscillateur |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2384382A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0321329A1 (fr) * | 1987-12-18 | 1989-06-21 | Thomson Hybrides Et Microondes | Oscillateur doubleur de fréquence accordé par varactors |
FR2671242A1 (fr) * | 1990-12-27 | 1992-07-03 | Thomson Csf | Oscillateur a tres faible bruit de phase. |
-
1977
- 1977-03-14 FR FR7707492A patent/FR2384382A1/fr active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0321329A1 (fr) * | 1987-12-18 | 1989-06-21 | Thomson Hybrides Et Microondes | Oscillateur doubleur de fréquence accordé par varactors |
FR2625051A1 (fr) * | 1987-12-18 | 1989-06-23 | Thomson Hybrides Microondes | Oscillateur doubleur de frequence, accorde par varactors |
US4868526A (en) * | 1987-12-18 | 1989-09-19 | Thomson Hybrides Et Microondes | Frequency-doubling oscillator, tuned by varactors |
FR2671242A1 (fr) * | 1990-12-27 | 1992-07-03 | Thomson Csf | Oscillateur a tres faible bruit de phase. |
Also Published As
Publication number | Publication date |
---|---|
FR2384382B1 (fr) | 1982-02-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES2036506T1 (es) | Receptor de radio frecuencia electricamente sintonizado; aparato y metodo para el mismo. | |
JPS56145775A (en) | Switching control type power source circuit | |
ATE150601T1 (de) | Spannungsgesteuerter oszillator mit automatischer stromsteuerung | |
FR2384382A1 (fr) | Dispositif de limitation du taux d'harmoniques d'un oscillateur | |
JPS55136720A (en) | Solidstate alternating current switch | |
FR2415910A2 (fr) | Dispositif de limitation du taux d'harmoniques d'un oscillateur | |
EP0199250B1 (fr) | Commutateur de proximité inductif | |
JPS5528677A (en) | Frequency conversion circuit | |
JPS57203306A (en) | Amplitude compensating circuit | |
JPS5687923A (en) | Delay adjusting circuit | |
JPS56110306A (en) | Voltage control type oscillator for pll frequency synthesizer | |
FR2437731A1 (fr) | Oscillateur a cristal compense en temperature | |
EP0165736A3 (fr) | Oscillateur de radiofréquence à synchronisation à injection et procédé pour générer de l'énergie radiofréquente | |
JPS6449406A (en) | Voltage controlled crystal oscillator | |
GB1093164A (en) | Improvements in or relating to electric oscillators | |
GB1157580A (en) | Improvements in or relating to Voltage-Controlled Variable Frequency Oscillators. | |
SU470903A1 (ru) | Частотно-модулированный кварцевый генератор | |
JPS6455910A (en) | High frequency oscillator | |
JPS55143822A (en) | Automatic frequency control unit | |
JPS5575308A (en) | Oscillation device | |
JPS5731206A (en) | Voltage control oscillator | |
ES8300420A1 (es) | "uns oscilador controlado a tension". | |
JPS5723334A (en) | Tuning circuit equipped with vco | |
NL7507121A (en) | Tunable UHF oscillator with capacity diode in current circuit - has resistor to junction with capacitor feeding variable voltage at long time constant | |
JPS56129358A (en) | Semiconductor integrated circuit |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
CL | Concession to grant licences | ||
ST | Notification of lapse |