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High-precision 10-watt 9dB attenuation plate

An attenuator, high-precision technology, applied in the field of high-precision 10W 9dB attenuator, can solve the problem that the signal does not meet the actual requirements, achieve stable frequency characteristics, improve production efficiency, and reduce costs

Inactive Publication Date: 2014-12-24
苏州市新诚氏通讯电子股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the attenuation accuracy or VSWR does not meet the requirements, the signal obtained at the output does not meet the actual requirements

Method used

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  • High-precision 10-watt 9dB attenuation plate

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Embodiment Construction

[0012] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0013] Such as figure 1 As shown, the high-precision 10W 9dB attenuator includes a high thermal conductivity aluminum nitride ceramic substrate 1 with a length of 5.0mm, a width of 2.5mm, and a thickness of 1.0mm. The back of the high thermal conductivity aluminum nitride ceramic substrate 1 is printed with silver Paste back conductive layer, high thermal conductivity aluminum nitride ceramic substrate 1 printed with symmetrical silver paste circuit 2 and 5 black film resistors R1, R2, R3, R4, R5, 5 black film resistors R1, R2 , R3, R4, and R5 are connected by wires to form an attenuation circuit, and the attenuation circuit is connected to the back conducting layer through low-temperature silver paste, so that the attenuation circuit is grounded. The attenuation circuit is symmetrical along the center line of the ceramic substrate, and 5 fi...

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Abstract

The invention discloses a high-precision 100-watt 9dB attenuation plate. The high-precision 10-watt 9dB attenuation plate comprises a high-thermal-conductivity ceramic substrate which is 5 mm long, 2.5 mm wide and 1 mm thick, the high-thermal-conductivity ceramic substrate is a high-thermal-conductivity aluminum nitride ceramic substrate, symmetric silver paste circuits are printed on the front face of the high-thermal-conductivity aluminum nitride ceramic substrate, five black film-like resistors are printed between the silver paste circuits according to the characteristics of an attenuation circuit, the silver paste circuits and the five black film-like resistors are connected through high-temperature sintering, the back face of the high-thermal-conductivity aluminum nitride ceramic substrate is printed with silver paste, and the symmetric silver paste circuits and the silver paste printed on the back face are connected with the ground through the silver paste. According to the design of the attenuation plate, the design of the completely-symmetric circuits is adopted, various performance indexes such as a VSWR and attenuation precision are fully considered, the situation that original attenuation plates produced domestically can only be applied to low frequency is broken, the application requirements of a current 3G network are met, and all the indexes of the high-precision 100-watt 9dB attenuation plate reach international advanced levels.

Description

technical field [0001] The invention relates to an attenuating sheet, in particular to a high-precision 10-watt 9dB attenuating sheet. 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] In foreign countries, especially in Europe and the United States, the research and development and production of attenuators and load plates started much earlier than in China, and they are in a comparative advantage in terms of product richness and product microwave charact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/22
Inventor 不公告发明人
Owner 苏州市新诚氏通讯电子股份有限公司
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