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具有大束宽(>90°)的圆极化天线已经在宇宙通讯系统中作为非跟踪式地面天线及稳定的卫星天线用。但是,在甚高频及超高频低端频段内,这种天线其结构大多此较复
Circularly polarized antennas with a large beamwidth (> 90 °) have been used as non-tracking ground antennas and stable satellite antennas in the space communications system. However, in the low-end VHF and UHF band, the antenna structure is mostly complicated