J4 ›› 2011, Vol. 38 ›› Issue (5): 135-141.doi: 10.3969/j.issn.1001-2400.2011.05.022

• Original Articles • Previous Articles     Next Articles

Fast hybrid algorithm for the analysis of transient scattering by 2-D conducting cylinders

QIN Santuan1;GONG Shuxi2   

  1. (1. School of Electronic Eng., Xi'an Univ. of Posts & Telecomm., Xi'an  710121, China;
    2. Science and Technology on Antenna and Microwave Lab., Xidian Univ., Xi'an  710071, China)
  • Received:2010-08-24 Online:2011-10-20 Published:2012-01-14
  • Contact: QIN Santuan E-mail:qinsantuan@126.com

Abstract:

Transverse Electric(TE) transient scattering by two-dimensional combinative conducting cylinders is investigated by the combination of the time domain integral equation (TDIE) method and the time domain physical optics (TDPO) method. Based on the electric field integral equation (EFIE), the explicit solution of Marching-On-in-Time (MOT) is developed. In this method, the TDPO is applied to the electrically large but smooth cylinder while the TDIE is applied to the electrically small but complicated one. To take account of the interactions between combinative cylinders, the mixed iteration of TDIE/TDPO is introduced. In numerical examples, the induced currents on the surface of conducting cylinders are presented. Numerical results show that in the case of similar accuracy, this hybrid method improves computational efficiency greatly.

Key words: hybrid methods, time domain, integral equation, physical optics, TE transient scattering