一种小型化平面倒置F型三频天线的设计

Design of Miniaturized and Tri-band Planar Inverted-F Antenna

随着无线通信技术的发展,各种通信终端对天线的小型化和多频化提出了很高的要求;在这种形势下设计了一种小型化的平面倒置F型三频天线(PIFA);天线采取同轴馈电,辐射贴片开两个L型槽的方法,可在WLAN2.4/5GHz以及将来的WiMax3.5GHz 3个频段工作;应用ANSOFT公司的HFSS10.0(high frequency structure simulator)三维仿真软件,对天线尺寸进行设计和优化,最终得出一种小型化的平面倒置F型三频天线(PIFA),同时也验证了天线小型化和多频化方法的可行性;该天线满足新一代无线通信技术对天线频段和带宽的要求,并适合某些工程应用。

Along with the wireless communication technology＇s development, each kind of corresponding terminal sets the very high request to antenna＇ s miniaturization and multi-frequencies. This paper designs a miniaturized and tri-band planar inverted-F antenna （PIFA） .The coaxial feeder was taken and two different L-shaped slots were notched within the antenna-radiating surface. The three central frequencies lie in the WLAN 2.4/5GHz and the coming WiMax 3.5GHz bands, and the size is designed and optimized with 3D simulation software HFSS10 of ANSOFT company. The method is proved available. The antenna satisfies the requirements of new generation wireless communication system to frequency and bandwidth, and suits certain project application.