Apparatus for preventing thunderbolt, electronic device and method for preparing plane inductive coil

Abstract

The object of the present invention is to provide a kind of lightning protection equipment to suppress, release, damp the lightning interference and atmospheric discharge of the antenna feeder system, which includes a first capacitor, a second capacitor, a first planar inductance coil, a second planar inductance coil , the first and second planar inductive coils are both planar spiral shapes, and the number of turns is N, where N is a natural number greater than or equal to 1; the first and second coils are made of cross-shaped insulating materials Supported by a bracket, each fixing screw is equipped with a corona discharge ring to prevent corona discharge; the first and second planar inductance coils are installed in parallel, facing each other, and keep a certain distance; the first capacitor and the first planar inductance coil form the primary In the resonant circuit, the second capacitor and the second planar inductance coil form a secondary resonant circuit.

Description

Technical field: [0001] The invention provides a lightning protection device and an electronic device capable of suppressing, releasing and damping lightning interference and atmospheric discharge from an antenna feeder system. Background technique: [0002] There are multiple ways for lightning to enter the transmitter (power supply, signal transmission link, antenna feeder system, etc.), but due to the characteristics of the medium-wave broadcasting transmitting antenna, the lightning interference introduced by the antenna feeder system is the main cause of the transmitter being struck by lightning. factor. [0003] At present, vertical antennas with effective cross-sections are widely used in medium-wave broadcasting. Since this type of antenna is a non-grounded steel tower or steel mast structure, it is not only an antenna radiator, but also a good receptor for lightning interference and atmospheric discharge. The electrostatic induction between the charged cloud layer ...

AI Technical Summary

Problems solved by technology

[0011] Using an isolated electrostatic discharge inductor coil, the self-inductance coefficient is large (mH ~ 100mH order of magnitude), the inter-turn distributed capacitance is large, and the self-resonant frequency is low, which is likely to have an adverse effect on the operating frequency, which is difficult to debug

[0012] The inductance coil in the matching network also serves as an electrostatic discharge coil. The selection of the self-inductance coefficient depends on the specific design of the matching network, and the lightning protection effect depends on the specific design of the matching network in the antenna feeder system. It lacks standardization and cannot form standardized design products.

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