应用于全金属外壳平板电脑的小尺寸GPS/WLAN天线设计  

Small-size GPS/WLAN Antenna for Tablet Computer with Full Metal Housing

作　　者：张文艺[1] 戴海斌[1] 汤小俊[1] 

机构地区：[1]上海大学通信与信息工程学院,上海200072

出　　处：《工业控制计算机》2017年第8期41-42,45,共3页Industrial Control Computer

摘　　要：利用PCB和全金属外壳构成一个腔体模型,并基于该模型设计了一个应用于全金属外壳平板电脑的小尺寸GPS和WLAN(a/b/g)频段天线。该天线以IFA(Inverted F Antenna)结构基础进行设计。天线位于PCB和金属外壳的顶部开槽处,面积仅有13*15mm^2。天线与全金属腔体共同谐振出GPS(1.57GHz)和WLAN(2.4GHz)频段;WLAN(5~6GHz)频段通过天线自身谐振产生。最后,通过添加过地通孔对实验结果进行优化。实测结果显示,该天线在-6dB以下的回波损耗带宽分别为1490~1620MHz、2380~2560MHz、5000~6500MHz,三个频段的平均效率达到了60%以上,克服了传统的IFA在全金属环境下效率下降的问题。In this paper,a cavity model is constructed by using a PCB and a Full Metal Housing.Based on this model,a small-size antenna in GPS and WLAN（a/b/g） band is designed for tablet computer with Full Metal Housing.The antenna is designed based on the IFA（Inverted F Antenna） structure.It is located at the top of the PCB and metal housing,with an area of only 13 ＊15mm^2.The antenna resonates with the cavity model to excite the GPS and WLAN bands,and the WLAN band is generated by the antenna itself.

关 键 词：全金属外壳 GPS WLAN 平板电脑 IFA 

分 类 号：TN820[电子电信—信息与通信工程]