设计了一款基于PIFA结构的手机天线,以多支节和增加寄生单元方式实现天线的小型化和多频段要求。采用HFSS13.0高频电磁仿真软件对天线进行仿真优化,最终得到天线的尺寸为33 mm×13 mm×8 mm,同时天线在多个频点处谐振。仿真结果表明,谐振点位置S11≤-10 dB,天线和馈线匹配良好,天线带宽足够同时覆盖GSM850、DCS1800、PCS1900、LTE2300/2500、ISM/Bluetooth、WLAN(2.4GHz)工作频段。对设计天线进行了加工和实测,实测与仿真结果吻合良好,验证了本设计的可靠性。%A mobile-phone antenna based on PIFA is designed, with way of multiple nodules and increas-ing parasitic elements to meet its requirements of miniaturization and multiple bands. The antenna is simu-lated and optimized with electromagnetic simulation software HFSS13 . 0 ( High Frequency Structure Simu-lator),and the designed antenna is 33mmí13mmí8mm in size and resonates at multiple frequency points. Simulation results indicate that with parameter S11≤-10 dB,the proposed antenna could match well with feeder, and its bardwidth is enough to cover many operation frequency bands, including GSM850, DCS1800, PCS1900, LTE2300, LTE2300, ISM/Bluetooth and WLAN(2. 4GHz). The proposed antenna is processed and measured, and the simulated results and measured results are quite idenical. All this elo-quently verifies the reliability of this designed antenna.
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