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一、前言目前,日本电电公司正在研究中容量国内卫星通信方式中的准毫米波车载站。利用通信卫星的车载站通信方式不同于以前的地面无线电方式,只要是卫星辐射波束的有效区域内,就能从全国各地看到卫星,故可以构成与中继距离及移动范围无关的线路。国外的车载站有的是利用CTS。这种车载站在运用时把口径3米的天线装配在大型汽车
I. Preface At present, Japan’s Denso Corporation is studying quasi-millimeter-wave vehicular stations in medium-capacity domestic satellite communications. Different from the former terrestrial radio mode, the vehicle-mounted station communication system using communication satellites can see satellites from all over the country as long as it is within the effective area of the satellite radiation beam, so it can form a line that has nothing to do with the relay distance and the moving range. Some foreign car station is the use of CTS. This vehicle-mounted station is equipped with an antenna of 3 meters in diameter in a large car