Aluminum nitride ceramic substrate 100 W-29 dB attenuation slice

Abstract

The invention discloses an aluminum nitride ceramic substrate 100 W-29 dB attenuation slice. The attenuation slice comprises an aluminum nitride ceramic substrate which is 8.9 mm long, 5.7 mm wide and 1 mm thick. A conductor layer is printed on the back surface of the aluminum nitride substrate, a plurality of resistors and silver paste wires are printed on the front surface of the aluminum nitride substrate, the resistors are connected through the silver paste wires to form an attenuation circuit, glass protection films are printed on the resistors, epoxy resin protection films are printed on the wires and the glass protection films, and bridge type dielectrics are printed on the epoxy resin protection films. According to the attenuation slice, by the adjustment of the resistance value and the positions and the circuits of the bridge type dielectrics, the accurate attenuation value is obtained. The power of the attenuation slice can meet the requirements of power capacity of 100 W, standing waves and the attenuation precision of the attenuation slice can meet the use requirements of 3G frequency bands, and therefore the aluminum nitride ceramic substrate 100 W-29 dB attenuation slice can be applied to present 4G networks.

Description

technical field [0001] The invention relates to an aluminum nitride ceramic substrate attenuation sheet, in particular to a 100-watt 29dB attenuation sheet for an aluminum nitride ceramic substrate. Background technique [0002] At present, multiple film resistors are integrated into one, and attenuators with different designs of resistors and circuits are widely used in aviation, aerospace, radar, radio, broadcast communication and other equipment fields. The use of a load chip can only simply consume and absorb excess power, while the use of an attenuator can absorb the reverse input power while extracting the required signal for analysis, and adjust the power level on the high-frequency circuit, decoupling, and related The device plays a protective role. [0003] As a power consumption component, the attenuator cannot affect the circuits at both ends, that is to say, it should match the circuits at both ends. At present, the attenuation accuracy of the domestic 100W-29d...

AI Technical Summary

Problems solved by technology

At present, the attenuation accuracy of the domestic 100W-29dB 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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