Aluminum nitride ceramic substrate 100 W-6 dB attenuation slice

Abstract

The invention discloses an aluminum nitride ceramic substrate 100 W-6 dB attenuation slice. The attenuation slice comprises an 8.9 mm*5.7 mm*1 mm aluminum nitride ceramic substrate. A silver paste conductor layer is printed on the back surface of the aluminum nitride ceramic substrate, silver paste wires are printed on the front surface of the aluminum nitride ceramic substrate, the two ends of each silver paste wire are respectively connected with a bonding pad, resistors are printed among the silver paste wires, high-temperature protection films are printed on the resistors, and acid and alkali-resistant protection films are printed on the silver paste wires and the high-temperature protection films. According to the attenuation slice, in the design thought, the circuit structure of the output end is optimized, standing waves of the output end are improved, and the inductance-capacitance performance of circuits is adjusted. Meanwhile, by accurate modification of the resistance value, the high-accuracy attenuation value is obtained. Various indexes of the aluminum nitride ceramic substrate 100 W-6 dB attenuation slice are good, and therefore the aluminum nitride ceramic substrate 100 W-6 dB attenuation slice meets the use requirements of present 4G networks.

Description

technical field [0001] The invention relates to an aluminum nitride ceramic substrate attenuation sheet, in particular to a 100-watt 6dB attenuation sheet for an aluminum nitride ceramic substrate. 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 attenu...

AI Technical Summary

Problems solved by technology

At present, the attenuation accuracy of the domestic 100W-6dB 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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