US Patent 7215285 Bi-frequency symmetrical patch antenna

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US Patent 11749910 Dual band antenna

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Jia-Jiu Song0

Wei-Tong Cheng0

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Patent abstract

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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US Patent 11682824 Antenna module disposed in vehicle

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