The Journal of China Universities of Posts and Telecommunications

Acta Metallurgica Sinica(English letters)

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Design and analysis of quantized controllable doped left-handed materials

Hong-Xin ZHANG   

  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
  • Received:2010-09-06 Revised:2011-02-21 Online:2011-06-30 Published:2011-06-13
  • Contact: Hong-Xin ZHANG E-mail:hongxinzhang@263.net

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Abstract:

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.

Key words:

electromagnetics, left-handed material, pass-band, capacitors, inductors

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