【摘 要】
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微波是一种具有极高频率(通常为300MHz～300GHz),波长很短,通常为1m～1mm 的电磁波。在微波频段,由于频率很高,电波的绕射能力弱,所以信号的传输主要是利用微波在视线距离内的直
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微波是一种具有极高频率(通常为300MHz～300GHz),波长很短,通常为1m～1mm 的电磁波。在微波频段,由于频率很高,电波的绕射能力弱,所以信号的传输主要是利用微波在视线距离内的直线传播,又称视距传播。微波与短波相比,虽然具有传播较稳定,受外界干扰小等优点,但在电波的传播过程中,却难免受到地形、地物和气候状况的影响而引起反射、
Microwave is a kind of electromagnetic wave with very high frequency (usually 300MHz ~ 300GHz), very short wavelength, usually 1m ~ 1mm. In the microwave frequency band, due to the high frequency and weak radio wave diffraction ability, the signal transmission mainly utilizes the microwave to transmit in a straight line within the line of sight distance, also known as line of sight propagation. Compared with the shortwave microwave, microwave has the advantages of relatively stable propagation and small external interference, but it is inevitably affected by the topography, the features and the weather conditions in the radio wave propagation process, causing the reflection,
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