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本文提出一种新型平面倒置F型三频手机天线(PIFA)。天线采取单馈点同轴馈电,上层辐射片开h形槽孔,应用时域有限差分法对天线进行设计和仿真,在GSM900MHz,DCS1800MHz和ISM2450MHz 3个频段的增益分别达到了0.1dBi,0.25dBi和0.4dBi,带宽分别达到了6.44%,6.67%和4.5%,表明该天线可在三个频段工作,满足了新一代无线通信系统对频段、带宽和增益的要求。
This paper presents a new planar inverted F-type tri-band mobile phone antenna (PIFA). The antenna adopts a single-feed-point coaxial feed and the upper radiating plate is provided with an h-shaped slot. The antenna is designed and simulated by using the time-domain finite difference method. The gains in the three frequency bands of GSM900MHz, DCS1800MHz and ISM2450MHz reach 0.1dBi, 0.25 dBi and 0.4dBi, respectively, and the bandwidths reached 6.44%, 6.67% and 4.5% respectively, indicating that the antenna can work in three frequency bands to meet the requirements of frequency band, bandwidth and gain of a new generation of wireless communication system.