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在四十年代中叶,微波工程几乎是与雷达技术互成共义语。正是因为要求制造高分辨率雷达以便测量敌机或敌船,才使得微波工程得到了大的发展。现在,微波工程已是一门比较成熟的学科。在雷达,通讯,工农业及基本研究诸方面得到了广泛的应用,在这些方面,微波理论与技术的新的发展亦大。微波工程就是频率约由10~9至10~(12)赫芝(简称赫,即周每秒)的信息处理系统的工程,这相当于由30厘米直到0.3毫米的波长。由于波长短,微波的电的效应从回路或器件的一点传播至另一点所需的时间与电流或电荷振荡周期相差不大,故电路的方法已不足以解决微波回路或器件中的问题,而必须研
In the mid-1940s, microwave engineering was almost synonymous with radar technology. It is precisely because of the requirement to manufacture high-resolution radar in order to measure the enemy or enemy ships, only to make microwave engineering has been a big development. Now, microwave engineering is already a relatively mature discipline. In radar, communications, industry and agriculture and basic research has been widely used, in these areas, microwave theory and technology, the new development is also large. Microwave engineering is the project of an information processing system with a frequency of about 10 to 9 to 10 (12) Hz, which is equivalent to a wavelength from 30 cm up to 0.3 mm. Because of the short wavelength, the time required for microwave electrical effects to propagate from one point of the loop or device to another is not too different from the current or charge oscillation period, the circuit approach is not sufficient to solve problems in microwave loops or devices, Must research