微波中继通信由于具有灵活、经济、可靠、通信容量大、容易适应较复杂的地形以及易于克服天然障碍等优点,广泛地用作传送广播、电视、电话和传真等信息的重要手段。微波波段频率较高,微波波束基本上沿直线传播,遇到障碍物时其绕射能力较差。因此,两通信点在视距范围之内,中间应无障碍,否则就必须在障碍点或其他合适的地方增设一微 Microwave relay communication is widely used as an important means of transmitting information such as radio, television, telephone and fax due to its advantages of being flexible, economical and reliable, large communication capacity, easy adaptation to complex terrain and easy to overcome natural obstacles. The frequency of the microwave band is relatively high, and the microwave beam basically propagates in a straight line. When encountering an obstacle, its diffraction ability is poor. Therefore, the two communication points should be within the line of sight and there should be no obstacle in the middle. Otherwise, one additional point must be added to the point of obstruction or other appropriate places