适用于WPAN/WLAN的一种新型双频IFA印制天线  

A Novel Dual Band Printed IFA for WPAN/WLAN System

作　　者：刘彤[1] 沈连丰[1] 傅永生[1] 

机构地区：[1]东南大学移动通信国家重点实验室,南京210096

出　　处：《微波学报》2004年第2期82-86,共5页Journal of Microwaves

基　　金：国家自然科学基金资助项目 (6 0 0 72 0 16 ) ;教育部科学技术研究重点项目 (0 2 171)

摘　　要：首先对单频IFA印制天线的各项主要尺寸参数进行研究 ,并给出其对天线阻抗性能及谐振频率的影响结果 ;然后在此基础上设计出可工作于 2 .4 5GHz和 5 .2 5GHz的原型双频IFA天线 ,并提出天线的新型结构———改进型双频IFA天线 ,给出其相应的仿真与测量结果。该新型天线可直接印制到FR - 4板材上 ,结构紧凑 ,价格低廉 ,馈电方便 ,设计简单、灵活 ,具有等向辐射和交叉极化特性 。The major dimension parameters of the single band IFA are analyzed first, and the results of their impacts on both impedance and resonant frequency of the antenna are given as well. Based on the results, the prototype dual band IFA for 2.45GHz and 5.25GHz is designed, and the novel transformed dual band IFA structure is presented with the corresponding simulation and experimental results. The proposed antenna is simple and flexible to design, and can be printed on the FR 4 board directly for its compact profile, resulting in cost effective manufacture and convenience to feed. Further more it has high radiation efficiency, omni directional pattern and mixed polarization, which make it not only fit for the current but also the future generation WPAN/WLAN systems.

关 键 词：无线个域网 无线局域网 WPAN WLAN 电压驻波比 倒F型天线 双频IFA印制天线 

分 类 号：TN820[电子电信—信息与通信工程]