一种新型WLAN宽带双频天线设计与分析  

Design and analysis of a novel WLAN wideband dual-frequency antenna

作　　者：沈细荣[1,2] 郭爱煌[1] 

机构地区：[1]同济大学电子与信息工程学院,上海200092 [2]神讯电脑(昆山)有限公司EC工程部,江苏昆山215300

出　　处：《应用科技》2009年第10期27-30,共4页Applied Science and Technology

摘　　要：多频天线能适应不同网络的要求,是无线通信技术研究的热点之一.为达到产品设计及成本的要求,提出了一种新型WLAN宽带双频平板天线,天线以FR4为基材,采用寄生振子与开矩形槽.应用Ansoft HFSS软件,对天线尺寸进行设计和优化仿真.仿真结果表明:天线在IEEE802.11b/g(2.4GHz)相对带宽为33%,IEEE802.11a(5GHz)相对带宽为28%;而且缩减了天线尺寸,提升了使用带宽,达到了宽频天线的要求,完全适于WLAN系统应用.The multi-frequency antenna adapts to different networks, it is one of the wireless communication research hot spots. A novel compact dual frequency planar antenna is applied to WLAN in order to meet the design and cost requirements of NoteBook computer. The antenna uses FR4 as the baseplate, and employs parasitic element and rectangle slot. The antenna dimension is designed and optimized with a 3D simulation software Ansoft HFSS. The simulation result indicates that the antenna achieves the relative bandwidth of 33% at IEEE802.11 b/g （2.4GHz） and 28% at IEEE802.11 a （5GHz）, besides, the dimension is miniaturized while the bandwidth is widened, which meets the requirement of wideband antenna. This novel antenna is completely suitable for WLAN system.

关 键 词：天线 WLAN HFSS 宽带 寄生振子 

分 类 号：TN919.81[电子电信—通信与信息系统]