A parabolic antenna equipped with a detachable lightning protection device

Abstract

The invention discloses a parabolic antenna equipped with a detachable lightning protection device, which belongs to the field of parabolic antennas. It is a parabolic antenna equipped with a detachable lightning protection device. The lightning rod part of the lightning rod will attract lightning and guide the energy of lightning into the shell of the lightning protection device, converting the electric energy into a large amount of heat. On the one hand, the nitrogen in the strain airbag is heated and expanded, and at the same time, the hot-melt sealant is melted. Under the action of the air-hardened rubber material will be sprayed from the shell of the lightning protection device to the induction plate, with the spraying of the air-hardened material, under the action of the compressed spring in the compressed state, the shell of the lightning protection device will be ejected from the support rod The upward bounce makes it difficult for the lightning rod to continue to attract lightning and cause continuous damage to the parabolic antenna. When the existing lightning protection device fails, it temporarily plays a protective role and increases the safety of the parabolic antenna during use.

Description

technical field [0001] The invention relates to the field of parabolic antennas, in particular to a parabolic antenna equipped with a detachable lightning protection device. Background technique [0002] The parabolic antenna is a single reflector antenna, which uses an axisymmetric rotating parabola as the main reflector, and places the feed source at the focus of the parabola. The feed source usually uses a horn antenna or a horn antenna array. When transmitting, the signal radiates from the feed source to the parabola, and then radiates into the air after being reflected by the parabola. Since the feed source is located at the focus of the paraboloid, the radio wave is reflected by the paraboloid and radiates parallel to the normal direction of the paraboloid. When receiving, after being reflected by the reflective surface, the electric wave converges to the feed source, and the feed source can receive the maximum signal energy. [0003] In order to increase the signal ...

AI Technical Summary

Problems solved by technology

[0003] In order to increase the signal reception effect of the parabolic antenna, it is usually necessary to set the parabolic antenna in a relatively wide and high-lying place to avoid the surrounding obstacles from interfering with the signal reception of the parabolic antenna. However, once a thunderstorm occurs in a wide and high-lying place Weather, the parabolic antenna is extremely vulnerable to lightning damage, so it is necessary to build a complete lightning protection device during the construction of the parabolic antenna

[0004] The most common existing lightning protection device is the grounding device. The lightning rod is used to guide the energy of lightning to the ground for energy discharge, so as to avoid irreversible damage to the parabolic antenna caused by lightning strikes. Most of the existing lightning protection devices are made of metal materials. In the process, the above-mentioned metal materials are usually subjected to comprehensive anti-corrosion treatment, but as time goes by, under the action of lightning strikes, the lightning protection device will frequently undergo electrochemical reactions, causing the lightning protection device to fail and the protection of the parabolic antenna.

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