微波定向天线对准实现方法

Realization Methods for Microwave Directional Antenna Pointing

论述了微波通信中,根据通信双方站点的经纬度可计算得出通信距离、通信方位角和俯仰角,并查阅站点所在地理位置的磁偏角进行方位角的校正。根据通信距离、工作频率和天线增益等参数,计算信号理论接收电平,依据方位角和俯仰角去调整定向天线方位,当天线接收信号测试电平与理论值相当时则认为天线实现了对准。给出了通过全向天线或低增益天线作辅助实现定向天线对准的方法。

In microwave communication,communication distance,azimuth angle and elevation angle can be calculated by using the longitudes and latitudes of the two sites of communication,and azimuth angle must be corrected by using the magnetic declination angle of the geographical positions of the two sites.The theoretical receiving level of signal can be calculated by communication distance,signal frequency and antenna gain etc.Thus,antenna pointing directions can be adjusted according to the azimuth angle and elevation angle.When the tested level of received signal is equivalent to the theoretical one,the desired pointing direction of antenna is considered as achieved.The method for directional antenna pointing assisted by omnidirectional antenna or low gain antenna is introduced finally.