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一、引言毫米波设备具有分辨力高、信息容量大、穿透等离子体能力强、能在不良气候下工作、体积小、重量轻和价格便宜等优点,在军事技术和科学技术中有着非常广阔的应用前景。因此,毫米波频段的开拓和研究已成为世界各国科学家和技术员的重要课题。毫米波的研究工作早在1895年就已经开始。当时莱贝杜(Lebedew)曾利用火隙发生器产生了毫米波,但功率太小不能提供实际使用。直到第二次世界大战时,人们才研制成功了能够提供实际应用的毫米波速调管,并开始了毫米波雷达的研究应用活动。五
I. INTRODUCTION Millimeter wave equipment has the advantages of high resolution, large information capacity, strong ability of penetrating plasma, capable of working under bad weather conditions, small size, light weight and cheap price. It has a very wide range in military technology and science and technology The application prospects. Therefore, the pioneering and researching of the millimeter-wave frequency band has become an important issue for scientists and technicians all over the world. Millimeter wave research as early as 1895 has already begun. At that time, Lebedew had used millimeter-wave generators to generate millimeter waves, but the power was too small to provide practical use. It was not until World War II that people succeeded in developing millimeter-wave klys tubes capable of providing practical applications and started the research and application of millimeter-wave radars. Fives