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30W 12db aluminum nitride ceramic substrate attenuation slice

A technology of aluminum nitride ceramics and aluminum nitride substrates, applied in the direction of electrical components, circuits, waveguide devices, etc., can solve the problem of increased return loss, failure to meet the application requirements of frequency bands above 2G, and attenuation accuracy that cannot meet the requirements and other issues, to achieve the effect of increasing power capacity, reducing defective products, and facilitating customers

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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  • 30W 12db aluminum nitride ceramic substrate attenuation slice

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Embodiment Construction

[0013] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0014] Such as figure 1 As shown, the aluminum nitride ceramic substrate 30 watts 12dB 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...

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Abstract

The invention discloses a 30W 12db aluminum nitride ceramic substrate attenuation slice which comprises an aluminum nitride ceramic substrate with the dimension of 5*5*1MM; the back conduction layer is printed on the back side of the aluminum nitride ceramic substrate; a leading wire and resistors are printed on the front side of the aluminum nitride ceramic substrate; the resistors are connected through the leading wire to form a TT-type attenuation circuit; the attenuation circuit is symmetrical along the central line of the aluminum nitride ceramic substrate; the output end and the input end of the attenuation circuit are respectively connected with a bonding pad; the two bonding pads are symmetrical along the central line of the aluminum nitride ceramic substrate. All performance indexes of the attenuation slice are fully considered in design, high frequency and non-inductance are achieved, the situation that the original attenuation slice is only applied to be in low frequency state is broken, the application requirement of the current 3G network can be met, and meanwhile, the series product line of the fixed resistor type attenuation slice is extended.

Description

technical field [0001] The invention relates to an aluminum nitride ceramic substrate attenuation sheet, in particular to a 30W 12dB 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 kinds of resistance designs can not only absorb the reverse input power of the communication components in the communication base station, but also adjust the power level and decoupling on the high frequency circuit, and protect the related equipment. [0003] Since aluminum nitride ceramics is still an emerging industry, there is no divers...

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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