多频段耦合馈电印刷PIFA天线的分析与设计  

Design and analyze of multiband printed coupled-fed PIFA

作　　者：周慧[1] 杨婷[1] 王瑞涛[1] 瞿颜[1] 郭陈江[1] 丁君[1] 

机构地区：[1]西北工业大学电子信息学院,陕西西安710129

出　　处：《电子设计工程》2013年第20期132-136,共5页Electronic Design Engineering

摘　　要：文中设计制作了一款用于无线移动通信终端的7频段PIFA天线。该天线尺寸为40 mm×35 mm×0.8 mm,由4个辐射臂和一个短路单元构成,采用耦合馈电的方式,具有剖面低与结构简单的特点。该天线可以用于以下无线通信系统:全球移动通信系统(GSM 850/900/1900)、蓝牙2.4 GHz、WiMax 3.5 GHz以及无线局域网(WLAN)的两个频段(5.15～5.35 GHz和5.725～5.875 GHz)。加工了天线模型并对其反射系数和方向图进行了测试,实测结果与仿真结果吻合较好,同时对仿真结果和测试结果进行了详细的分析。A multiband planar inverted-F antenna(PIFA) covering seven frequency bands for wireless communication terminals is presented. The proposed antenna is designed within a volume of 40 mm×35 mm×0.8 mm; it uses the coupling feed and has a low profile and simple structure of comprising four radiating arms and a shorting arm. The antenna can be used to serve the following wireless communication systems: Global System for Mobile Communications(GSM 850/900/1900),Bluetooth at 2.4 GHz, WiMAX at 3.5 GHz, and the two bands(5.15～5.35 GHz and 5.725～5.875 GHz) for the Wireless Local Area Network(WLAN) standards. A prototype antenna was fabricated and tested for the reflection coefficient and radiation patterns,measured results show good agreement with simulated ones. Details of the proposed PIFA and the results of the simulation and measurement are discussed and presented.

关 键 词：耦合馈电 低剖面天线 多频天线 平面倒F天线(PIFA) 

分 类 号：TN828.6[电子电信—信息与通信工程]