Ultrathin aluminum-oxide ceramic-substrate 2W-9dB attenuation piece
An alumina ceramic, ultra-thin technology, applied in the direction of electrical components, circuits, waveguide devices, etc., can solve the problem that the signal does not meet the actual requirements, and achieve the effect of reduced material cost, good frequency characteristics, and improved stability
Inactive Publication Date: 2014-12-17
苏州市新诚氏通讯电子股份有限公司
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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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[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 ultra-thin alumina ceramic substrate 2 watts 9dB attenuator includes a 5.0*6.0*0.5MM alumina substrate 1, the back of the alumina substrate 1 is printed with a back guide layer, and the back guide layer is made of high-purity silver paste printed. The front side of the alumina substrate 1 is printed with resistors R1, R2, R3, R4, R5 and silver paste wire 2, and the silver paste wire 2 connects the resistors R1, R2, R3, R4, R5 to form a π-shaped attenuation circuit. The resistors R1, R2, R3, R4, and 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, and R5. Also be printed with one deck black protective film 4 on the upper surface of whole circuit namely silver paste conductor 2 and glass protective film 3, black protective ...
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Abstract
The invention discloses an ultrathin aluminum-oxide ceramic-substrate 2W-9dB attenuation piece. The ultrathin aluminum-oxide ceramic-substrate 2W-9dB attenuation piece comprises a high-conductivity aluminum-oxide ceramic substrate which is 5.0mm in length, 6.0mm in width and 0.5mm in thickness, high-purity silver paste leads are printed on the front side of the aluminum-oxide ceramic substrate and communicated through high-temperature sintering film type resistors, a high-purity silver paste back-conductor layer is printed on the back of the aluminum-oxide ceramic substrate, and a front conductor and a back conductor are conducted through low-temperature silver paste. In design of the attenuation piece, various performance indexes are sufficiently considered, and the attenuation piece is high in frequency and noninductive. The situation that existing attenuation pieces are applied to low frequency only is changed, application requirements of the 3G network can be met, and a like product line of 2Wfixed film type resistor type attenuation pieces is extended.
Description
technical field [0001] The invention relates to an alumina ceramic attenuation sheet, in particular to an ultra-thin alumina ceramic substrate 2 watts 9dB attenuation sheet. Background technique [0002] At present, the attenuator integrated with five resistors is widely used in aviation, aerospace, radar, radio, broadcast communication and other equipment fields. Especially in the cable TV system, attenuators are widely used in order to meet the level requirements of multiple ports. Since the research and development and manufacture of similar products in foreign countries started earlier than domestic ones, they are in an advantageous position both in product series and product characteristics. [0003] Since the research and development and manufacture of similar products in foreign countries started earlier than domestic ones, they are in an advantageous position both in product series and product characteristics. At the same time, the existing attenuators in the domes...
Claims
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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