电子元件与材料2012，Vol.31Issue(4)：33-36,4.
一种频带展宽的小型化左手偶极子天线的设计
Design of a miniaturized and bandwidth-extended dipole antenna with left-handed loading
摘要
Abstract
Dipole loaded with left-handed transmission lines (LH dipole) can effectively achieve the miniaturization of antennas. However, this type of antennas usually possess the narrow bandwidth and the low radiation efficiency. A four-cells LH dipole antenna with extended bandwidth was designed using a gradual changing ladder network structure to replace traditional non-gradual changing structure. The length of the antenna was 0.2 A. The simulating and measure results show that the antenna simultaneously works at both -1 order and -3 order resonant modes, and the impedance bandwidth for |S11|≤-10 dB achives 6.5%. Besides, in the working frequency range of 571-610 MHz, the gain of the prepared antenna is greater than -4.25 dBi, and the efficiency is higher than 25%.关键词
偶极子天线/左手传输线/渐变结构Key words
dipole antenna/ left-handed transmission line/ gradual changing structure分类
信息技术与安全科学引用本文复制引用
曹卫平,郑斯萍,李思敏,高喜..一种频带展宽的小型化左手偶极子天线的设计[J].电子元件与材料,2012,31(4):33-36,4.基金项目
国家自然科学基金资助项目(No.61071018) （No.61071018）
广西无线宽带通讯与信号处理重点实验室主任基金资助项目(No.11110) （No.11110）
