Search

Article

x

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

An algorithm of equivalent curcuit of FDTD and its application to designing metamaterial structure

Liu Li-Guo Wu Wei-Wei Wu Li-Lin Mo Jin-Jun Fu Yun-Qi Yuan Nai-Chang

An algorithm of equivalent curcuit of FDTD and its application to designing metamaterial structure

Liu Li-Guo, Wu Wei-Wei, Wu Li-Lin, Mo Jin-Jun, Fu Yun-Qi, Yuan Nai-Chang
PDF
Get Citation

(PLEASE TRANSLATE TO ENGLISH

BY GOOGLE TRANSLATE IF NEEDED.)

Metrics
  • Abstract views:  1186
  • PDF Downloads:  722
  • Cited By: 0
Publishing process
  • Received Date:  24 December 2012
  • Accepted Date:  19 March 2013
  • Published Online:  05 July 2013

An algorithm of equivalent curcuit of FDTD and its application to designing metamaterial structure

  • 1. School of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China;
  • 2. Dept. of Basic Courses, Bengbu Automobile NCO Acade, Bengbu 233011, China
Fund Project:  Project supported by the New Century Excellent Talents in University of China (Grant No. NCET-10-0894), and the National Natural Science Foundation of China (Grant No. 60871069).

Abstract: A novel finite-difference time domain (FDTD) algorithm named equivalent circuit FDTD (EC-FDTD) is realized, which introduces lumped elements from transmission line theory into Yee cell. It includes lumped elements such as series inductance and shunt capacitance in the right-handed materials, as well as shunt inductance and series capacitance in the left-handed materials. Due to its promising physical thoughts, it can be easily generalized to arbitrary dispersive materials including frequency selective surfaces and metamaterials. The technology of streaming single-instruction multiple-data (SIMD) extensions (SSE) was proposed by Intel and is currently utilized in personal computers. SSE is a kind of parallel speedup technology in one core. The speedup can be achieved four times in principle without changing hardware. Combined with SSE, the EC-FDTD can be apparently accelerated. Twice speedup is achieved in the tests of this paper. The algorithm of EC-FDTD is utilized to design the wideband metamaterials absorbers by employing the single square and double square loops loaded with the lumped resistors. The invisible radome has a great impact on reducing the radar cross section of the antenna out of band. The radome is designed with operating frequency to be 1 GHz and the absent bandwidth from 3 GHz to 9 GHz by the algorithm. And then these prototypes are fabricated and measured. From the comparative results, the correctness of EC-FDTD and the speedup of the SSE are both verified.

Reference (22)

Catalog

    /

    返回文章
    返回