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微波的发展可归纳为三个方面,即:一、应用范围的不断扩大;二、与固体材料相结合;三、朝更高频率发展.本文就这三个方面的概况作一扼要叙述.一、应用范围的不断扩大微波是电磁谱中波长从100厘米至0.1厘米(频率从300兆赫～300千兆赫)的一段.一般说,波长更短的谱(即波长短于0.1厘米,或频率高于300千兆赫)属于光学的范畴,而波长更长的谱(即波长长于100厘米,或频率低于300兆赫)则属于通常无线电的范畴.关于微波范围的上下限规定,并不是很明确的.至于波长从短于1毫米到红外线(百分之几毫米)之间的一段电磁谱究竟是否属于微波的范围,是一个有待于商榷的问题;也有人称这个波段为“超微波”.
The development of microwaves can be summarized into three aspects, namely: First, the continuous expansion of the scope of application; Second, the combination of solid materials; Third, toward higher frequencies of development. This article on the three aspects of a brief overview. , With a growing range of applications Microwaves are sections of the electromagnetic spectrum with wavelengths from 100 cm to 0.1 cm (frequencies from 300 MHz to 300 GHz). In general, shorter wavelength spectra (ie, wavelengths less than 0.1 cm, or high frequencies At 300 gigahertz) belongs to the category of optics, whereas longer wavelength spectra (ie, wavelengths longer than 100 cm or frequencies below 300 MHz) fall within the category of usual radios. The upper and lower limits of the microwave range are not well defined The question of whether a section of electromagnetic spectrum with wavelengths from less than 1 millimeter to infra-red (a few hundredths of a millimeter) fall within the scope of microwaves is an open question; some people call this band “ultra-microwaves.”