Title :
A new interface treatment technique for modeling curved dielectric objects
Author :
Wang, Jian ; Yin, Wen-Van ; Liu, Qing-Huo
Author_Institution :
Center for Microwave & RF Technol., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
In this paper, a new dielectric interface treatment technique is proposed to solve curve dielectric EM problems, in which we use an average dielectric constant with area of different dielectric regions in nine spatial discrete cells to modify the update equations of electric fields. We observe that the proposed method has low numerical dispersion error, and it can use large space cells (Delta = wavelength in dielectrics/10) so as to reduce the computer memory required.
Keywords :
electromagnetic field theory; finite difference time-domain analysis; permittivity; average dielectric constant; curved dielectric objects; interface treatment; numerical dispersion error; Dielectric constant; Difference equations; Electromagnetic modeling; Finite difference methods; Integral equations; Microwave theory and techniques; Permittivity; Radio frequency; Surface treatment; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2009. APSURSI '09. IEEE
Conference_Location :
Charleston, SC
Print_ISBN :
978-1-4244-3647-7
DOI :
10.1109/APS.2009.5171797