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微波无线电是第二次世界大战期间新发展起来的一个技术领域。由于它具备许多优越的特性和广泛的用途,因此引起了人们很大的兴趣和注意。什么是“微波”? 大家知道,无线电是靠电磁波在空间的传输来进行工作的。从频率每秒15,000周一直到每秒3×10~(10)周(就是波是20,000米到0.01米)之间的电磁波都叫做无线电波。随着频率的不同,它的传输性能,也就有了显著的差别。一般把整个无线电波段,根据不同的传输性能,分成各种波类,如长波、中波、短
Microwave radio is a newly developed technical field during the Second World War. Because it has many superior features and a wide range of uses, it has caused great interest and attention. What is “microwave”? As we all know, radio is based on the transmission of electromagnetic waves in space. Electromagnetic waves between the frequency of 15,000 cycles per second and 3 x 10 to 10 cycles per second (that is, the wave is 20,000 meters to 0.01 meters) are called radio waves. With the different frequencies, its transmission performance, there is a significant difference. Generally, the whole radio band is divided into various wave types according to different transmission performances, such as long wave, medium wave and short wave.