低侧面四频带PIFA手机天线设计

低侧面四频带PIFA手机天线设计

内容简介：设计了一种适用于超薄手机的四频带PIFA天线，采用插销和寄生负载技术实现天线的多频带。将馈电位置下面地板开槽和馈地探针直接接入大地板增强天线辐射。此外，利用π形无源匹配技术减小天线的回波损耗，进一步增强天线的辐射效率。实验测量表明，该天线能工作在GSM900/DCS/PCS/UMTS 4个频段，且辐射效率分别为38％、40％、42％和39％。

Abstract：It presents the design of a low-profile quad-band PIFA antenna for mobile phones .The Anten-na has multiband characteristics via the use of two-slot and parasitic load .To enhance antenna radiation , three technologies were applied , such as digging out the ground under the feed , joining directly up ground-feed and the ground , and using passive πmatching network .Experimental results show that the antenna has very good radiation performance in GSM 900/DCS/PCS/UMTS operating bands , the efficien-cy of which is 38%、40%、42%and 39%respectively .

作者：罗文波, 吴多龙, 吴艳杰, 林青,

关键词：低侧面, 多频带天线, PIFA, 手机,