Design and analysis of quantized controllable doped left-handed materials  

作　　者：LIU Wen ZHANG Hong-xin WANG Hong LU Ying-hua CHEN Nan MEN Shuo 

机构地区：[1]School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China [2]Beijing National Railway Research and Design Institute of Signal and Communication, Beijing 100073, China [3]College of Electronic Information and Automation, Chongqing University of Technology, Chongqing 400054, China

出　　处：《The Journal of China Universities of Posts and Telecommunications》2011年第3期99-104,共6页中国邮电高校学报（英文版）

基　　金：supported by the National Natural Science Fundation of China (60871081);the Research Innovation Fund for College Students of Beijing University of Posts and Telecommunications (2010);the Beijing Natural Science Foundation (Design and Fabrication of Miniature Smart Antenna Based on Metamaterials,4112039)

摘　　要：Two kinds of controllable doped left-handed materials （DLHMs） were designed by inserting inductors and capacitors into the traditional left-handed material （LHM） as heterogeneous elements respectively, which are DLHM with inductors （LDLHM） and DLHM with capacitors （CDLHM）. The characteristics of transmission spectrum were studied by using finite-difference time-domain method （FDTD）. Compared with the traditional LHM, the resonance strength of the LDLHM is weakened and the pass-band is narrowed, but with the increase of the value of the inserted inductors, the bandwidth is expanded. As capacitors inserted into the LHM, the pass-band of the CDLHM is expanded, but the pass-band is shifted to low frequency and the bandwidth is narrowed with the increase of the value of the capacitors, meanwhile, a new generated pass-band is also shifted to low frequency. Therefore, a quantized controllable doped left-handed material can be achieved.Two kinds of controllable doped left-handed materials （DLHMs） were designed by inserting inductors and capacitors into the traditional left-handed material （LHM） as heterogeneous elements respectively, which are DLHM with inductors （LDLHM） and DLHM with capacitors （CDLHM）. The characteristics of transmission spectrum were studied by using finite-difference time-domain method （FDTD）. Compared with the traditional LHM, the resonance strength of the LDLHM is weakened and the pass-band is narrowed, but with the increase of the value of the inserted inductors, the bandwidth is expanded. As capacitors inserted into the LHM, the pass-band of the CDLHM is expanded, but the pass-band is shifted to low frequency and the bandwidth is narrowed with the increase of the value of the capacitors, meanwhile, a new generated pass-band is also shifted to low frequency. Therefore, a quantized controllable doped left-handed material can be achieved.

关 键 词：ELECTROMAGNETICS left-handed material pass-band capacitors INDUCTORS 

分 类 号：TN304.5[电子电信—物理电子学] TB851[一般工业技术—摄影技术]