Title :
Time-domain method of moments accelerated by Adaptive Cross Approximation algorithm
Author :
Yan, Ying ; Zhang, Yu ; Zhao, Xun-wang ; Mei, Zicong ; Zhao, Weixin ; Sarkar, Tapan K.
Author_Institution :
Sch. of Electron. Eng., Xidian Univ., Xi´´an, China
Abstract :
This paper presents the Adaptive Cross Approximation (ACA) method combined with Time-Domain MoM (TD-MoM) to analyze the transient electromagnetic problem. On one hand, Marching-on-in-degree (MOD) method is used in TD-MoM to solve the TD-integral equations so that the disadvantage of late-time instability in Marching-on-in-time (MOT) method is avoided. On the other hand, the ACA algorithm is purely algebraic so that it can be easily applied to TD-MoM to accelerate the calculation and to reduce the CPU memory required for storing the data. Through a numerical example, this paper´s method is proven feasible and efficient.
Keywords :
approximation theory; electromagnetic field theory; integral equations; method of moments; time-domain analysis; ACA method; CPU memory; MOD method; MOT method; TD-MoM; TD-integral equations; adaptive cross approximation algorithm; late-time instability; marching-on-in-degree method; marching-on-in-time method; time-domain MoM method; transient electromagnetic problem; Approximation methods; Educational institutions; Integral equations; Memory management; Moment methods; Time domain analysis; Transient analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6348636
