A microwave continuous wave high power limiter

Abstract

The invention discloses a novel microwave and continuous-wave high-power amplitude limiter. The novel microwave and continuous-wave high-power amplitude limiter comprises a microwave power coupler, a microwave power detector, a detection signal amplifier, a threshold comparator, a PIN switch driver, a microwave high-power PIN switch and a PIN pulse amplitude limiter; the output end of the microwave power coupler is respectively connected to the input end of the microwave high-power PIN switch and the input end of the microwave power detector; the microwave power detector is connected to the input end of the PIN pulse amplitude limiter through the detection signal amplifier, the lagging threshold comparator, the PIN switch driver and the microwave high-power PIN switch sequentially; the design requirement of continuous-wave high-power PIN pulse amplitude limiting is reduced; the power bearing capability of a microwave receiving system to microwave and continuous-wave or broad-pulse broad-power signals can be improved; the problem that the bearing power of the traditional microwave and continuous-wave high-power amplitude limiter can be solved; and the reliability of the microwave receiving system is improved.

Description

technical field [0001] The invention belongs to the technical field of microwave continuous wave high-power limiter, in particular to a microwave continuous wave high-power limiter. Background technique [0002] In wireless communication, radar, electronic countermeasures and other systems, the transmitter transmits radio signals, and the receiver receives radio signals. Generally speaking, the distance of communication and detection is long, and the higher the transmit power of the transmitter, the better; while the front-end of the receiver requires higher sensitivity, the better, so the power that the front-end of the receiver can withstand is very small, in order to prevent possible high-power signals from entering the receiver The front end of the machine burns the receiver. Generally, a limiter needs to be designed in the front end circuit of the receiver to protect the small signal receiver circuit. Especially in radar and electronic countermeasure receivers, the powe...

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Problems solved by technology

[0005] In order to solve the above problems, the present invention discloses a new type of microwave continuous wave high-power limiter, which reduces the requirements for the design of continuous wave power resistance for high-power PIN limiter tubes, and improves the microwave receiving system for microwave continuous wave or broadband The power withstand capability of pulse width and high-power signals solves the problem of low power withstand of traditional microwave continuous wave high-power limiters and increases the reliability of microwave receiving systems

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