The evolution of satellite communication systems to the microwave and millimeter wave frequency band has become a development trend,and at the same time,it also faces greater challenges.Starting from the concept of the Internet,the development and application progress of LEO satellites is introduced.Then,two typical types of products of LEO sky transmitter(Tx)printed circuit board(PCB)and LEO ground receiving(Rx)PCB are sorted out.Finally,some key process technologies of LEO PCB are outlined,namely,low density foaming material poly methacrylimide(PMI)mixed pressing technology for reducing PCB weight,selection and processing of hybrid structure by high frequency and high speed base-materials and warpage control technology,millimeter wave antenna-in-package(AiP)and array antenna technology.
关键词
低轨卫星/印制电路板/毫米波通信/阵列天线/封装天线
Key words
LEO satellite/PCB/millimeter wave communication/array antenna/AiP
维普
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