移动通信终端小型宽频带PIFA天线研究  

Research on Compact Wideband Planar Inverted-F Antenna for Mobile Communication Terminals

作　　者：张兴宇[1] 王均宏[2] 

机构地区：[1]北京交通大学全光网络与现代通信网教育部重点实验室,北京100044 [2]北京交通大学光波技术研究所,北京100044

出　　处：《微波学报》2009年第1期42-45,59,共5页Journal of Microwaves

基　　金：国家自然科学基金(60471053);教育部新世纪优秀人才支持计划(NCET-04-0096)

摘　　要：针对移动和无线通信终端小型化、宽频带以及多系统融合的趋势,提出了一种实用的小型化宽频带内置式平面倒F型天线。商用电磁仿真软件计算结果表明,该天线在1.67～4.05GHz频段范围内回波损耗小于-10dB,相对带宽达到83%,超出现有的同类天线,可同时覆盖DCS1800、PCS1900、WCDMA、UMTS、WiBro、WLAN和DMB等多种移动通信系统的频段。同时,该天线自由空间辐射方向性图和增益也都满足无线通信终端的要求。此外,实际制作了天线并进行了测试,测试结果与仿真结果吻合较好。In order to meet the trend of the , broadband, amalgamation of multi-systems of mobile and wireless communication terminals, a novel compact practical wideband internal planar inverted-F antenna （PIFA） is proposed in this paper. The antenna presented exhibits a wide bandwidth ranging from 1.67 to 4.05 GHz for SI 1 〈 - 10dB which is simulated through the commercial electromagnetic simulation software. The relative bandwidth is larger than those of the existing antennas with similar structures, and reaches up 83%. This bandwidth can cover the frequency bands of DCS1800,PCS1900,WCDMA,UMTS,WiBro, WLAN and DMB simultaneously. It is found that the radiation pattern in free space and gain of the proposed antenna also meet the demands of the wireless communication terminals. Whatg more, the reported antenna was fabricated and measured. Good agreement between the measurement and simulation results can be observed.

关 键 词：小型化 宽频带 平面倒F天线 移动通信终端 

分 类 号：TN929.53[电子电信—通信与信息系统]