Microwave pulse generator

H - Electricity – 03 – B

Patent

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Details

H03B 5/18 (2006.01) G01S 7/282 (2006.01) G01S 13/02 (2006.01)

Patent

CA 2274123

The invention relates to a microwave pulse generator for generating microwave pulses with nanosecond pulse duration, comprising a pulse generator generating control pulses of a constant pulse width and a microwave oscillator generating microwave oscillations. The microwave oscillator is fitted with a transistor amplifier, to which a frequency-determining resonant circuit and an ohmic device for reducing the resonant circuit sharpness are connected in such a way that a control pulse of the pulse generator guided to the transistor amplifier on an input binder leads to a tappable microwave oscillation on an output binder of the microwave oscillator, which follows at least approximately the trajectory of the control pulse.

L'invention concerne un générateur d'impulsions hyperfréquences pour produire des impulsions hyperfréquences d'une durée de l'ordre de la nanoseconde, comportant un générateur d'impulsions produisant des impulsions de commande de largeur constante, et un oscillateur hyperfréquence produisant des oscillations hyperfréquences. Cet oscillateur hyperfréquence est pourvu d'un amplificateur à transistors, auquel un circuit résonnant de détermination de fréquence et un dispositif ohmique destiné à réduire le coefficient de qualité du circuit résonnant sont connectés, de telle manière qu'une impulsion de commande du générateur d'impulsions acheminée à l'amplificateur à transistors au niveau d'une borne d'entrée entraîne, au niveau d'une borne de sortie de l'oscillateur hyperfréquence, une oscillation hyperfréquence mesurable, laquelle suit au moins approximativement la trajectoire de l'impulsion de commande.

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