一种宽带小型化的三频PIFA天线  

A tri-band planar inverted-F antenna with wide band and small size

作　　者：谢建精[1,2] 何晓华[3] 章坚武[4] 

机构地区：[1]武汉理工大学,湖北武汉430070 [2]杭州电子科技大学电子信息学院,浙江杭州310018 [3]浙江传媒学院电子信息学院,浙江杭州310018 [4]杭州电子科技大学通信工程学院,浙江杭州310018

出　　处：《电波科学学报》2010年第6期1219-1224,共6页Chinese Journal of Radio Science

基　　金：浙江省自然科学基金人才项目(No.R105473)

摘　　要：综合多种技术,提出了一种宽频带小型化的三频PIFA天线。基于缝隙加载技术,在辐射贴片上开双L形槽以形成多个电流路径,从而产生多个谐振频率;引入折叠的辐射片结构以缩小天线的轮廓;通过较宽的馈电带片激励来展开天线各个频段的带宽。天线的仿真与测试结果吻合较好,证实了该新型天线具有较宽的工作频带和良好的辐射特性,能较好地满足GSM/DCS/ISM三个频段的要求,还覆盖了S-DMB频段,具有一定的实用价值。A broadband and small tri-band planar inverted-F antenna is proposed in this paper.Based on slot-loading,multiple current paths can be generated with two L-shaped slots etched in the radiation patch,resulting in multiple resonant frequencies.Besides,antenna＇s size is greatly reduced by introducing the folded structure.In addition,the antenna band can be broadened to a large extent when excited by a wide feed sheet.The measured results are in well agreement with the simulation results.Both of them show that the antenna has a wide operation band and good radiation pattern,with frequency range covering GSM/DCS/ISM and S-DMB bands.

关 键 词：PIFA天线 宽频带 小型化 缝隙加载 折叠 宽馈电片 GSM/DCS/ISM/S-DMB 

分 类 号：TN82[电子电信—信息与通信工程]