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EP0139583A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Quartz-oscillator for very high frequencies

Assignee: Compagnie Electronique et de Piezoelectricite CEPE
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Filing: 1984-10-08
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Granted: —
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Expires: 2004-10-08
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Abstract

Abstract Translated from French L'invention concerne un oscillateur à quartz pour très hautes fréquences. The invention relates to a crystal oscillator for very high frequencies. La boucle de contre-réaction de l'oscillateur comporte un réseau de compensation (R) d'un quartz Q à la fréquence de l'oscillateur, et un filtre passe-bas (F) éliminant les fréquences inférieures à celle (f o ) de l'oscillateur. Un diviseur de puissance D à deux branches permet d'envoyer le signal issu de la boucle de contre-réaction d'une part à l'entrée de l'amplificateur (A) de l'oscillateur et d'autre part à un amplificateur de sortie (A 1 ). Des quadripôles Q 1 à Q s permettent d'adapter les impédances à l'entrée et à la sortie de l'amplificateur (A), de l'oscillateur, de la boucle de contre-réaction et de l'amplificateur de sortie (A,). The oscillator feedback loop includes a compensation network (R) for a quartz Q at the frequency of the oscillator, and a low-pass filter (F) eliminating frequencies below that (f o ) of the oscillator. A power divider D with two branches makes it possible to send the signal coming from the feedback loop on the one hand to the input of the amplifier (A) of the oscillator and on the other hand to an amplifier of output (A 1 ). Quadrupoles Q 1 to Q s are used to adapt the impedances at the input and output of the amplifier (A), the oscillator, the feedback loop and the output amplifier (A ,).

Inventors

  • 👤 Jacques Chauvin
  • 👤 Patrice Canzian

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 04:53
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/30; H03B5/32; H03B5/36; H03B5/18; H03B5/1841; H03B5/1847; H03B5/366; H03B5/368

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