| The receiver front module is one of important parts of Radar system. It could processs the feebleness signal received by the antenna, and also could restrain the outside interference & noises from inner part of the radar system, thus the system could help the signal holding more useful information. Its performance directly affects the Radar system's work.The subject aims to apply the LTCC&Integral Substrate/Package (SIP) technology to achieve Miniaturization Research result of a X-Wave Band Integral Substrate/Package Front-end Receiver, thus to meet the practical demands of some engineering part.Firstly the paper introduced the characteristics and application of LTCC technology, which had become well-developed in recent years. A Miniaturization scheme of a LTCC substrate X wave band front end receiver design technology of ISP is presented. Then the paper talked about seveval typical receivers types and their working principles. Also, it described the working principles of several microwave active circuits, namely LNA,Mixer Limitr. The paper described in details several key technologies of front-end receivers:the anlysis & simulation technology of gold ribbon bonding adapted structure, microwave signal penetration structure, microstrip-stripline-CPW/coplanar wave guide switch. The X Wave band receiver adopt the Integral Substrate/Package (ISP) technology method, it take the LTCC substrate as the carrier of its package, with the I/O ports of the LTCC substrate directly led out,while assembling the other Parts of the package, in achiving a comprehensive package structure of the substrate and the package.Finally we assembled the front-end receiver into the X-band receiver system to measure. The measurement result showed that the front-end receiver module being able to reach the desired target value, and satisfying customer requirements. The module boasts of many virtues, such as high in reliability, small in volume, light in weight, low in noise, and integrated package. |
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