| 摘要 |
A bi-frequency symmetrical patch antenna includes two bi-frequency symmetrical radiation units, each having a first band radiation section and two second band radiation sections, to radiate a feed-in signal in a selected direction. Further, the antenna has a power distribution unit, to evenly distribute the feed-in power, corresponding to the feed-in signal, to each bi-frequency symmetrical radiation unit. The power distribution unit has two side arms connecting respectively to each bi-frequency symmetrical radiation unit to increase the bandwidth range of the bi-frequency antenna.
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