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LOD-BOR-FDTD Algorithm for Efficient Analysis of Circularly Symmetric Structures

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4 Author(s)
Shibayama, J. ; Fac. of Eng., Hosei Univ., Tokyo ; Murakami, B. ; Yamauchi, J. ; Nakano, H.

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%.

Published in:

Microwave and Wireless Components Letters, IEEE  (Volume:19 ,  Issue: 2 )