Title :
LOD-BOR-FDTD Algorithm for Efficient Analysis of Circularly Symmetric Structures
Author :
Shibayama, Jun ; Murakami, Bungo ; Yamauchi, Junji ; Nakano, Hisamatsu
Author_Institution :
Fac. of Eng., Hosei Univ., Tokyo
Abstract :
The unconditionally stable locally 1-D (LOD) scheme is used to develop an efficient implicit body-of-revolution (BOR) finite-difference time-domain (FDTD) method. In the LOD-BOR-FDTD, the number of arithmetic operations of the resultant finite-difference equations is significantly reduced, when compared with the alternating-direction implicit (ADI) BOR-FDTD. Numerical results of circular cavity resonators reveal that the LOD-BOR-FDTD provides resonance frequencies identical to the ADI counterparts, with the computational time being reduced to 70%.
Keywords :
cavity resonators; finite difference time-domain analysis; LOD-BOR-FDTD algorithm; circular cavity resonators; circularly symmetric structures; implicit body-of-revolution finite-difference time-domain method; resonance frequencies; unconditionally locally 1-D scheme; Body of revolution (BOR); locally 1-D finite- difference time-domain method (LOD-FDTD); rotationally symmetric geometry; unconditional stability;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2008.2011302
