【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。更多还原

【Abstract】 In order to meet the trend of the miniaturization,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 S11<-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. What’s more, the reported antenna was fabricated and measured. Good agreement between the measurement and simulation results can be observed.更多还原