High-precision ceramic 10-watt 15dB attenuation plate
An attenuator, high-precision technology, applied in electrical components, circuits, waveguide-type devices, etc., can solve problems such as signals that do not meet actual requirements, and achieve the effect of reducing material costs, improving stability, and good frequency characteristics
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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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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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 ceramic 10-watt 15dB attenuator includes a ceramic substrate 1 with a length of 5.0mm, a width of 2.5mm, and a thickness of 1.0mm. Symmetrical silver paste lines 2 and film resistors R1, R2, R3, R4, R5 are printed on the front of the screen, and the film resistors R1, R2, R3, R4, R5 are connected by wires to form an attenuation circuit. The back conducting layer is connected so that the attenuation circuit is grounded. The attenuation circuit is symmetrical along the center line of the ceramic substrate, and a glass protective film 3 is printed on the film resistors R1, R2, R3, R4, R5, and a layer of black resin is also printed on the upper surface of the symmetrical silver paste circuit 2 and the glass protective film 3 Protective film 4, can form protection to symmetrical silver paste l...
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Abstract
The invention discloses a high-precision ceramic 10-watt 15dB attenuation plate. The high-precision ceramic 10-watt 15dB attenuation plate comprises a ceramic substrate which is 5 mm long, 2.5 mm wide and 1 mm thick, the ceramic substrate is an aluminum nitride ceramic substrate, symmetric silver paste circuits are printed on the front face of the aluminum nitride ceramic substrate, film-like resistors are printed between the silver paste circuits, the silver paste circuits and the film-like resistors are connected through high-temperature sintering, the back face of the aluminum nitride ceramic substrate is printed with high-purity silver paste, and the symmetric silver paste circuits and the high-purity silver paste printed on the back face are connected through grounding 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 ceramic 10-watt 15dB attenuation plate reach international advanced levels.
Description
technical field [0001] The invention relates to a ceramic attenuator, in particular to a high-precision ceramic 10-watt 15dB attenuator. 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 chara...
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