【作者】 白杨； 冯恩信；

【Author】 BAI Yang;FENG Enxin;The School of Electronic and Information Engineering, Xi’ an JiaoTong University;

【机构】 西安交通大学电子与信息工程学院；

【摘要】 本文通过对PIFA(平面倒F天线)天线辐射场模式的分析,运用开槽曲流和弯折技术,通过微带贴片表面一组位置尺寸不一的矩形槽,成功激起和抑制了部分场模式,使得天线工作在DCS和BAND1等三个应用频段,满足了多模通信的要求。该天线在所工作的各个频段具有良好的频率特性和辐射特性,尤其是在低频1.8GHz处,通过控制长形槽线的尺寸,使得天线的回波损耗值降到了-35dB,实现了能量的高度转换。同时该天线也具有尺寸较小,结构简单紧凑易于加工集成的优点。更多还原

【Abstract】 The paper analyses PIFA‘s(Planar Inverted F Antenna) radiation field modes, utilizing the technology of slotting and bending, it proposes to excite and restrain parts of the modes through setting a series of long rectangle slots which are in different size and positions on the surface of the patch, and designs a triple band PIFA covering both DCS and BAND1. The antenna has good frequency characteristics and radiation pattern within every band, especially its return loss at 1.8 GHz can decrease to-35 dB by controlling the length of the slots, realizing the more effective energy conversion. Meanwhile the antenna has an advantage of smaller size, compact structure and ease of manufacturing.更多还原