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提出了一种平面倒F五频手机天线,通过辐射贴片开缝和增加寄生单元,实现天线小型化和多频段需求。仿真结果表明,天线在回波损耗S11<–6 d B时,工作频段完全覆盖了GSM 900 MHz、DCS 1800 MHz、DCS 1900 MHz、LTE 2300 MHz和ISM 2450 MHz的所有频率,工作性能良好,且增益均大于2 d Bi。该天线结构简单易于实现,便于集成,可满足多频手机应用要求。
A planar inverted-F five-frequency cell-phone antenna is proposed, which can make the antenna miniaturized and multi-band by slotting and adding parasitic elements by using radiating patches. The simulation results show that when the return loss S11 <-6 d B, the operating frequency band completely covers all frequencies of GSM 900 MHz, DCS 1800 MHz, DCS 1900 MHz, LTE 2300 MHz and ISM 2450 MHz, and the working performance is good. Moreover, The gain is greater than 2 d Bi. The antenna structure is simple and easy to implement, easy to integrate, and can meet the requirements of multi-frequency mobile phone applications.