频带展宽的复合左右手传输线偶极子天线

发布时间：2018-04-15 20:17

  本文选题：非周期结构 + 阻抗匹配　； 参考：《电波科学学报》2016年05期

【摘要】：针对周期复合左/右手(Composite Right/Left-Handed,CRLH)传输线偶极子天线带宽窄的问题,提出一种非周期CRLH传输线的天线模型.该模型主要由N个不同尺寸的LC梯形网络单元组成,实现参差调谐,改善天线的阻抗匹配,拓展天线带宽.设计了一种四单元非周期CRLH偶极子天线,模拟和实验测试结果表明:天线的长度为0.135λ_0时,满足回波损耗|S_(11)|≤-10dB的相对阻抗带宽为8.55%,天线的匹配性能得到了改善.
[Abstract]:Aiming at the problem of narrow band width of dipole antenna of periodic composite left / right hand composite right / left left handed CRLH transmission line, an antenna model of aperiodic CRLH transmission line is proposed.The model is mainly composed of N LC trapezoidal network elements with different sizes to achieve staggered tuning improve impedance matching and expand antenna bandwidth.A four-element aperiodic CRLH dipole antenna is designed. The simulation and experimental results show that when the antenna length is 0.135 位 _ 0, the relative impedance bandwidth of 鈮，

本文编号：1755614