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作为甚高频(VHF)电视接收天线,小型、方向性尖锐的相位差馈电式天线实现了多单元化。为了得到由方向性合成理论求出天线单元上的电流分布,新研制了馈电方法,试制了三、四单元天线。这些天线可覆盖宽频段,较传统的多单元八木天线具有优良的方向性。根据接收实验,在重影评价上也可以得到与10~12单元八木天线相似的性能。
As a very high frequency (VHF) television receiving antenna, small, sharp directivity of feed-in antenna to achieve a multi-unit. In order to get the current distribution of the antenna element obtained by the theory of directional synthesis, a new feeding method was developed and three or four element antennas were trial fabricated. These antennas cover a wide range of frequencies and offer superior directivity over the more traditional multi-element Yagi antennas. According to the receiving experiment, ghosting evaluation can be obtained with 10 to 12 units Yagi antenna similar performance.