Radio frequency lightning protection device and method

Abstract

The embodiment of the invention discloses a radio frequency lightning protection device, which comprises a cylindrical body and an insulating medium, wherein the cylindrical body comprises a connecting part, a blocking part and a matrix, the blocking part and the connecting part are arranged on the matrix, and the blocking part is connected together with an inner conductor coaxial with the radio frequency and a conductor on one side of a circuit board; and the connecting part is electrically connected with a grounding device on the other side of the circuit board so that the cylindrical body is grounded, wherein the insulating medium is covered on the peripheral sides of the matrix, the distance between the position for connecting the connecting part and the grounding device and the blocking part is (1 / 4+N / 2) wavelength, and N is an integer. The radio frequency lightning protection device adopted in the embodiment of the invention has small volume and is advantageous for miniaturization design.

Description

technical field [0001] The invention relates to the technical field of electronic communication, in particular to a radio frequency lightning protection device and method. Background technique [0002] Due to work needs, RF microwave systems are mostly installed outdoors at higher geographical locations, and are prone to lightning strikes or induced lightning surge voltages. As long as these instantaneous overvoltages and overcurrents enter the system, the receiving equipment will be burned immediately, causing equipment and even personnel harm. With the development of modern communication, the radio frequency lightning protection of communication equipment has attracted more and more attention. [0003] In the process of realizing the present invention, the inventor finds that the prior art has at least the following disadvantages: [0004] The RF front-end modules of communication base station products are connected by RF cable antennas. Generally, RF cables need to pass...

AI Technical Summary

Problems solved by technology

[0004] The RF front-end modules of communication base station products are connected by RF cable antennas. Generally, RF cables need to pass through the cavity duplexer / filter module first. Since the cavity duplexer / filter itself is a DC blocking module, it can solve the problem of lightning protection. However, as the miniaturization requirements of base station products become increasingly urgent, cavity duplexers / filters are too large to meet the miniaturization requirements.

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