Radio frequency front-end circuit of detection assembly

Abstract

The invention discloses a radio frequency front-end circuit of a detection assembly, which comprises a first input circuit, a second input circuit, a radio frequency transceiving circuit, a power division circuit and an output circuit, and is characterized in that a receiving antenna A of the first input circuit and a receiving antenna B of the second input circuit consist of microstrip array antennas at an interval of 180 degrees; the radio frequency transmit-receive circuit comprises a microwave integrated circuit, a power supply circuit, a configuration circuit, a modulation circuit and anintermediate frequency output circuit. The outputs of the power supply circuit, the configuration circuit and the modulation circuit are connected with the microwave integrated circuit; the output ofthe microwave integrated circuit is connected with the power dividing circuit, and the output of the power dividing circuit is connected with the output circuit. According to the invention, two independent input circuits and two independent output circuits are adopted; the isolation and the detection capability of the radio frequency front-end transceiving system of the detection assembly are improved, the 360-degree omnibearing panoramic detection performance of the radio frequency front end is realized, a modulation signal is generated through the modulation circuit according to the requirement of the detection assembly system, and the anti-interference capability of the radio frequency front end of the detection assembly is improved.

Description

technical field [0001] The invention relates to the technical field of detection of millimeter proximity fuzes, in particular to a radio frequency front-end circuit of a detection component. Background technique [0002] The RF front-end circuit of the detection component affects the detection performance of the proximity fuze to a certain extent. The existing detection component front-end circuit generally adopts a single detection signal input, so the detection component does not have the ability to detect 360° around. In addition, the frequency modulation signal of the modulation circuit is single. This makes the anti-interference ability of the detection component poor and cannot meet actual needs. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a radio frequency front-end circuit of the detection component, to realize the detection capability of the front-end system of the detection c...

AI Technical Summary

Problems solved by technology

[0002] The RF front-end circuit of the detection component affects the detection performance of the proximity fuze to a certain extent. The existing detection component front-end circuit generally adopts a single detection signal input, so the detection component does not have the ability to detect 360° around. In addition, the frequency modulation signal of the modulation circuit is single. The anti-interference ability of the detection component is poor, which cannot meet the actual needs

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