High power aluminum nitride ceramic substrate 100w-20db attenuator

A technology of aluminum nitride ceramics and aluminum nitride substrates, which is applied in the direction of electrical components, circuits, waveguide devices, etc., can solve the problem of attenuation sheet impedance and attenuation accuracy deviation, attenuation accuracy that cannot meet the requirements, and poor high and low temperature impact resistance To improve the design, avoid resistance quenching, and increase the impact resistance of high and low temperature

Inactive Publication Date: 2011-12-21
苏州市新诚氏通讯电子股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above problems are mainly due to the design of the domestic 100W-20dB attenuator, and the poor performance of high and low temperature impact resistance
After the high and low temperature impact test is completed, the current domestic attenuation chip impedance and attenuation accuracy deviate from the actual required range, so that the attenuation accuracy cannot meet the requirements

Method used

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  • High power aluminum nitride ceramic substrate 100w-20db attenuator
  • High power aluminum nitride ceramic substrate 100w-20db attenuator
  • High power aluminum nitride ceramic substrate 100w-20db attenuator

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Embodiment Construction

[0018] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0019] Such as figure 1 , 2 As shown, the high-power aluminum nitride ceramic substrate 100W-20dB attenuator includes an aluminum nitride substrate 1, a conductive layer 5 is printed on the back of the aluminum nitride substrate 1, and the conductive layer is printed by printing silver paste. The front surface of the aluminum nitride substrate 1 is printed with resistors R1, R2, R3, R4, R5 and silver paste wires 2. The silver paste wires 2 connect the resistors R1, R2, R3, R4, R5 to form an attenuation circuit with a TT structure , The resistors R1, R2, R3, R4, R5 are all printed with a glass protective film 3, and the glass protective film 3 is used to protect the resistors R1, R2, R3, R4, R5. A black protective film 4 is also printed on the upper surface of the entire circuit, namely the silver paste wire 2 and the glass protective film 3,...

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Abstract

The invention discloses a high-power aluminum nitride ceramic substrate 100W-20dB attenuator, which comprises an aluminum nitride substrate, a conductive layer is printed on the back of the aluminum nitride substrate, and several resistors and silver are printed on the front of the aluminum nitride substrate. Paste wire, the silver paste wire is connected to the resistor to form an attenuation circuit, and the glass protective film is printed on the resistor. The high-power aluminum nitride ceramic substrate 100W-20dB attenuator increases the resistance area, increases the high and low temperature impact resistance of the attenuator, and makes the product performance index meet the requirements. At the same time, it avoids the high temperature resistance quenching when welding the lead wire at the output end, avoids the risk of damage due to resistance quenching during actual use, and improves the circuit design so that the product can be applied to 3G networks.

Description

Technical field [0001] The invention relates to an aluminum nitride ceramic attenuation sheet, in particular to a high-power aluminum nitride ceramic substrate 100W-20dB attenuation sheet. Background technique [0002] At present, most communication base stations use high-power ceramic load plates to absorb the reverse input power in the communication components. High-power ceramic load plates can only consume and absorb excess power, and cannot monitor the working status of the base station in real time. When the base station fails to make a judgment in time, it has no protective effect on the equipment. [0003] The attenuator can not only absorb the reverse input power of the communication component in the communication base station, but also extract part of the signal from the communication component, monitor the base station in real time, and protect the equipment. However, the current domestic aluminum nitride 100W-20dB The attenuation accuracy of ceramic attenuators is not ...

Claims

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Application Information

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