Microwave filter packed shielded box and producing method thereof

A technology of microwave filters and production methods, applied in the fields of magnetic/electric field shielding, electrical components, etc., can solve problems such as neglect
CN1549677AInactive Publication Date: 2004-11-24海泰超导通讯科技(天津)有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
海泰超导通讯科技(天津)有限公司
Publication Date
2004-11-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The box consists of box cover, metal box base and filter operation sheet welded on support frame of box base in suspension mode based on bottom. It is formed as the follows: air vent is set on box base and support frame of filter operation sheet is placed at central part of box base, fixing screw hole and inlet as well as outlet of two symmetric SMA connectors are set at a pair of opposite edge on box base, gold plated layer is at bottom of filter operation sheet and the operation sheet is welded on support frame at box base centre of shielded box with gold plated layer according to welding layers.
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Description

(1) Technical field:

[0001] The invention relates to a filter packaging and shielding device and a production method thereof, in particular to a microwave filter packaging and shielding box and a production method thereof. (two) background technology:

[0002] At present, most of the filter packaging and shielding boxes in use are designed to work at room temperature. The micro-strip filter with planar structure is generally made of printed circuit board or ceramic substrate, and the working temperature is between -40□ and 70□. The problems of thermal expansion and contraction, heat conduction and electrical conduction caused by the different expansion coefficients of different materials are mostly ignored. Therefore, the design of the packaging and shielding box only focuses on the processing of microwave signals, while ignoring the requirements of low temperature conditions and high vacuum. (3) Contents of the invention:

[0003] The purpose of the present invention is ...

Claims

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