Novel wide band absorbing boundary condition for FDTD method simulations

Ao Sheng Rong, Zhong Liang Sun, Vijai K. Tripathi, Hua Xin Wang, Wen Bin Dou

Research output: Contribution to journalConference articlepeer-review


A wide band absorbing boundary condition that utilizes the basic relations between transverse fields of a guided travelling wave in the frequency domain is presented for FDTD method simulations. The resultant ABC operator ensures that the outgoing waves on the boundaries can be absorbed over the total frequency of interest. The exponential approximation is used to recursively implement our ABC in the FDTD simulation, avoiding the need for the complete time history of field components. The numerical experiments are used to demonstrate that the present ABC consistently has a superior absorbing performance over a wide frequency band.

Original languageEnglish (US)
Pages (from-to)645-648
Number of pages4
JournalIEEE MTT-S International Microwave Symposium Digest
StatePublished - 1995
Externally publishedYes
EventProceedings of the 1995 IEEE MTT-S International Microwave Symposium. Part 1 (of 3) - Orlando, FL, USA
Duration: May 16 1995May 20 1995

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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