Aluminum nitride ceramic substrate 30W 27dB attenuation sheet

A technology of aluminum nitride ceramics and aluminum nitride substrates, applied in electrical components, circuits, waveguide devices, etc., can solve the application requirements of frequency bands above 2G that cannot meet the requirements, the attenuation accuracy cannot meet the requirements, and the return loss increases. and other problems, to achieve the effect of small size, stable and reliable performance, and improved stability

Inactive Publication Date: 2012-10-03
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

At present, when the frequency band used by the attenuator on the market is higher than 2G, the attenuation accuracy cannot meet the requirements, and the return loss becomes larger, which cannot meet the application requirements of the frequency band above 2G.

Method used

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  • Aluminum nitride ceramic substrate 30W 27dB attenuation sheet

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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] like figure 1 As shown, the aluminum nitride ceramic substrate 30W 27dB attenuator includes an aluminum nitride substrate 1 with a size of 5*5*1MM. Wires 2 and resistors R1, R2, R3 are printed. The resistors R1, R2, R3 are connected by wires to form an attenuation circuit. The attenuation circuit is electrically connected to the back conductive layer through silver paste, so that the attenuation circuit is grounded. The attenuation circuit is symmetrical along the center line of the aluminum nitride substrate, the output end of the attenuation circuit is connected to a pad 5, the input end is connected to a pad 6, and the two pads 5, 6 are symmetrical along the center line of the aluminum nitride substrate . A protective glass film 3 is printed on the resistors R1, R2, R3, and a black protective film 4 is printed on the upper surface...

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Abstract

The invention discloses an aluminum nitride ceramic substrate 30W 27dB attenuation sheet which comprises a 5*5*1MM aluminum nitride substrate, wherein the back surface of the aluminum nitride substrate is printed with a back conducting layer, the front surface of the aluminum nitride substrate is printed with conductors and film resistors, and the conductors connect the film resistors to form a TT-type attenuation circuit. The attenuation sheet fully considers the performance indexes in the aspect of scheme design, has the advantages of small size, favorable high frequency characteristic, stable and reliable properties, no lead, environmental protection, high resistance value precision and high attenuation precision, is convenient to install, can satisfy the application requirements for 3G network at present, and extends the series product line of 30W fixed film resistor-type attenuation sheets.

Description

technical field [0001] The invention relates to an aluminum nitride ceramic substrate attenuation sheet, in particular to a 30W 27dB 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 to make a timely judgment, there is no protection for the equipment. The attenuator with three resistor designs can not only absorb the reverse input power of the communication components in the communication base station and adjust the power level on the high-frequency circuit, but also protect the related equipment. [0003] Since aluminum nitride ceramics is still an emerging industry, there is no diversified pattern in the produc...

Claims

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Application Information

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