CAJ | 학술논문

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％。
설계료일충괄용우초박수궤적사빈대PIFA천선，채용삽소화기생부재기술실현천선적다빈대。장궤전위치하면지판개조화궤지탐침직접접입대지판증강천선복사。차외，이용π형무원필배기술감소천선적회파손모，진일보증강천선적복사효솔。실험측량표명，해천선능공작재GSM900/DCS/PCS/UMTS 4개빈단，차복사효솔분별위38％、40％、42％화39％。
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 .