8 dB attenuation piece with power capacity being 100 W

Abstract

The invention discloses an 8 dB attenuation piece with power capacity being 100 W. The 8 dB attenuation piece comprises an 8.9 mm *5.7 mm *1 mm aluminum nitride ceramic substrate. A silver paste back conductor layer is printed on the back face of the aluminum nitride ceramic substrate. Silver paste wires and five black resistors are printed on the front face of the aluminum nitride ceramic substrate, the silver paste wires are connected with the resistors, an attenuator circuit is formed, the areas of the five black resistors are different in size according to different absorption powers, the five black resistors are formed by two times of silk-screen printing, and the back conductor layer and the silver paste wires are communicated through end grounding paste, wherein the end ground paste is silver paste. According to the attenuation piece, attenuation of absorption of the resistors to power from input to output is considered from the design thought, the areas of the resistors are defined, meanwhile, the moving direction of the silver paste wires is optimized, standing waves of the circuit are improved, and high-accuracy attenuation values are acquired by accurately correcting resistance values. The 8 dB attenuation piece with power capacity being 100 W has excellent indicators and meets the use requirements of an existing 4G network.

Description

technical field [0001] The invention relates to a power attenuation sheet, in particular to an 8dB attenuation sheet with a power capacity of 100 watts. Background technique [0002] At present, most communication base stations use high-power ceramic load chips to absorb the reverse input power of communication components. High-power ceramic load chips can only simply consume and absorb excess power, but cannot monitor the working conditions of the base station in real time. When the base station fails, it cannot make a timely judgment and has no protective effect on the equipment. The attenuation sheet can not only absorb the reverse input power of the communication components in the communication base station, but also extract part of the signal in the communication components, and monitor the base station in real time, thus forming an effective protection for the equipment. [0003] As a power consumption component, the attenuator cannot affect the circuits at both ends,...

AI Technical Summary

Problems solved by technology

At present, the attenuation accuracy of the domestic 100W-8dB aluminum nitride ceramic attenuator can only be within 1G frequency, and a few can achieve 2G, and the attenuation accuracy and the VSWR of the equipment are difficult to control, and the signal obtained at the output end is not good. Meet the actual requirements

Especially when the frequency band used by the attenuator is higher than 2G, its attenuation accuracy often fails to meet the requirements, and the return loss becomes larger, which cannot meet the application requirements of the frequency band above 2G

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