L-band RF system output port protection equipment

Abstract

The invention relates to L-band RF (Radio Frequency) system output port protection equipment which comprises an L-band RF system output port protection circuit arranged in a metal sealed cavity, wherein the circuit comprises a coupler, a detection comparison circuit and a digital control feedback circuit; the detection comparison circuit comprises a forward detection circuit, a reverse detection circuit, a tuning circuit and a comparator; the data feedback circuit comprises a data processing circuit, a VSWR (Voltage Standing Wave Ratio) indication circuit and a protection judgment circuit; after the equipment is connected with an RF system final amplifier, an L-band incident wave is separated from a reflected wave in proportion by utilizing the coupler, the separated reflection quantity and incidence quantity are compared by the detection comparison circuit, then a logic level is output, and connected with the digital control feedback circuit, and port matching is judged by data processing, so that when a port is mismatched, the protection circuit can timely close a corresponding sending signal, and a protection function is exerted; and the whole equipment has the characteristics that the equipment is small, exquisite, light, and sensitive in indication and judgment.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to an output port protection device of an L-segment RF system. The device is used to sample and compare the forward wave and reverse wave of the RF signal at the output port of the RF system. Through the comparison result, the return loss value of the output port of the RF system can be judged. According to the pre-tuned return loss value of the device, If the return loss is too large, the device can protect the RF system in time to ensure the safe use of the RF system. Background technique [0002] With the rapid development of information modernization, communication technology has become more and more closely related to our life. The development of modern industry, commerce, and military affairs, as well as the research and development of communication professional theory, have made the communication industry develop rapidly. In the RF system in the communication field, wh...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the common problem of mismatch between devices in the current RF system, especially to solve the problem that the output port of the RF system may burn the device when the mismatch is serious, resulting in system damage and work failure.

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