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最近20年来,毫米波和亚毫米波的研究有很大进展.因为毫米波、亚毫米波波长很短,利用较小尺寸的天线,即能产生强方向性的电磁波束,故毫米波和亚毫米波日益被用于雷达和无线电天文学中.在毫米波和亚毫米波波段,还可以获得极为宽广的无线电通信频带,大大超过目前微波波段所能提供的频带宽度.此外,在科学研究中,例如对于原子和分子结构的研究、超导现象的研究、热核反应的控制以及对于可控热核
In the recent 20 years, there has been great progress in the study of millimeter waves and submillimeter waves, because millimeter waves and submillimeter waves have a very short wavelength and use small-sized antennas to generate strong directional electromagnetic beams. Therefore, millimeter waves and sub-millimeter waves Millimeter-wave is increasingly being used in radar and radio astronomy. In the millimeter-wave and sub-millimeter-wave band, you can also get a very wide band of radio communications, much larger than the current microwave band can provide the bandwidth.In addition, in scientific research, For example, for the study of atomic and molecular structure, superconductivity, thermonuclear reaction control and for the controllable thermonuclear