Radar oscillator capable of preventing leak of oscillation output
AssigneesAnritsu Corporation, Matsushita Electric Industrial Co., Ltd.
InventorsYutaka Arayashiki, Sumio Saito, Masanori Ejima
Life of this patent
Estimating the term…
Abstract
The present invention, in order to enable intermittent output of an oscillation signal without essentially producing a leak in response to a pulse signal indicating a transmission timing of a radar wave, employs a configuration in which an operation of an oscillating unit (21) itself of a radar oscillator is alternately changed between an oscillating state and an oscillation stop state by a switch (30), not a configuration in which an output passage of an oscillation signal is switched to be opened and closed as in a conventional radar oscillator.
Claims25
A radar oscillator comprising:
- an oscillating unit having amplifier means, and in order to contribute to oscillation at a predetermined frequency together with the amplifier means, at least one of a feedback circuit which applies a positive feedback from an output side to an input side of the amplifier means and a resonator which resonates at the predetermined frequency, the resonator being connected to an input section or output section of the amplifier means, the oscillating unit outputting and stopping an oscillation signal having the predetermined frequency from the output side of the amplifier means in an oscillating state and an oscillation stop state;
- and
- switching means connected to the oscillating unit, the switching means being composed of an electronic switch which, receives a pulse signal indicating a transmission timing of a radar wave, and alternately changes an operating state of the oscillating unit between the oscillating state and the oscillation stop state at first and second levels of the pulse signal in order to intermit an output of the oscillation signal in response to a level of the pulse signal.
Dependencies are inferred from the claim text.