Title :
Absorbing boundary conditions for measured equation of invariance in time domain
Author :
Liu, Y.W. ; Liao, C. ; Lan, Ke ; Mei, K.K. ; Yung, K.N.
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Hong Kong
Abstract :
The measured equation on invariance is applied in time domain (TDMEI) to find the absorbing boundary conditions. The TM radiation of a line source at 1/4 computational domain in a 2-D free space is used as a test example to examine how good the TDMEI is in comparison with conventional absorbing boundary conditions (ABC), such at Mur´s (1981) 2nd order ABC and perfectly matched layer (PML), etc. It is found that the TDMEI is more accurate than both ABC and PML for the radiation problem.
Keywords :
boundary-value problems; electromagnetic wave absorption; finite difference time-domain analysis; 2D free space; FDTD; Mur´s 2nd order ABC; PML; TDMEI; TM radiation; absorbing boundary conditions; line source; measured equation of invariance; perfectly matched layer; time domain; Boundary conditions; Equations; Perfectly matched layers; Testing; Time measurement;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1998. IEEE
Conference_Location :
Atlanta, GA, USA
Print_ISBN :
0-7803-4478-2
DOI :
10.1109/APS.1998.702131
