Efficient stable 100w 5dB attenuator with aluminum oxide ceramic substrate
A technology of aluminum nitride ceramics and attenuation sheets, which is applied in the direction of electrical components, circuits, waveguide devices, etc., can solve problems such as increased return loss, attenuation accuracy that cannot meet the requirements, and output signals that do not meet actual requirements. Achieve the effect of optimizing the circuit structure and improving the standing wave
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
At present, the attenuation accuracy of the domestic 100W-5dB aluminum nitride ceramic attenuator can only be within 1G frequency, and a few can achieve 2G, and the attenuation accuracy and the VSWR of the equipment are difficult to control, and the signal obtained at the output end is not good. Meet the actual requirements
Especially when the frequency band used by the attenuator is higher than 2G, its attenuation accuracy often fails to 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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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-efficiency and stable aluminum nitride ceramic substrate 100W 5dB attenuator includes an aluminum nitride substrate 1, and a conductive layer is printed on the back of the aluminum nitride substrate 1, and the conductive layer is printed by printing silver paste. The front side of the aluminum nitride 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 TT-shaped attenuation circuit. A protective glass film 3 is printed on the resistors R1, R2, R3, R4, and R5, and the protective glass film 3 is used to protect the resistors R1, R2, R3, R4, and R5. The upper surface of the whole circuit, that is, the silver paste conductor 2 and the glass protective film 3 is also printed with one deck of blac...
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Abstract
The invention discloses an efficient stable 100w 5dB attenuator with an aluminum oxide ceramic substrate. The attenuator comprises the aluminum oxide ceramic substrate 8.9*5.7*1mm. A sliver paste back conduction layer is printed on the back of the aluminum oxide ceramic substrate. A sliver paste wire and five black resistors are printed on the front of the aluminum oxide ceramic substrate. The sliver paste wire is connected with the black resistors to form an attenuation circuit. The black resistors are provided with five glass protective membranes by printing, in one-to-one correspondence; two protective membranes are printed on the glass protective membranes and the sliver paste wire. According to the design concept, the attenuator has the advantages that the circuit structure of the output end is optimized, standing wave of the output end is improved, a precise attenuation is obtained by precisely correcting a resistance, indicators of the attenuator are all excellent, and the requirement for application in the existing 4G (fourth generation) network is met.
Description
technical field [0001] The invention relates to an aluminum nitride ceramic substrate attenuation sheet, in particular to a highly efficient and stable aluminum nitride ceramic substrate 100W 5dB attenuation sheet. 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, it cannot make a timely judgment and has no protective effect on the equipment. The attenuation sheet can not only absorb the reverse input power of the communication components in the communication base station, but also extract part of the signal in the communication components, and monitor the base station in real time, thus forming an effective protection for the equipment. [0003] As a power consumption comp...
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