Parabolic antenna provided with detachable lightning protection device

Abstract

The invention discloses a parabolic antenna provided with a detachable lightning protection device, and belongs to the field of parabolic antennae. In the scheme, after a traditional lightning protection device fails, a protruding lightning rod part attracts thunder and lightning and guides energy of the thunder and lightning into a lightning protection device shell, the electric energy is converted into a large amount of heat, nitrogen in a strain air bag is heated to expand while hot melting of a hot melting sealant is caused, under the action of the strain air bag, an air hardening material can be sprayed to an induction plate from the lightning protection device shell, and along with spraying of the air hardening material, under the action of a compression spring in a compressed state, the lightning protection device shell is bounced off from a supporting rod, so that the lightning rod is not easy to continuously attract lightning and is not easy to continuously damage the parabolic antenna, a protection effect is temporarily achieved when an existing lightning protection device fails, and the safety of the parabolic antenna in the using process is improved.

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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