Title :
An Unconditionally Stable One-Step Leapfrog ADI-BOR-FDTD Method
Author :
Yi-Gang Wang ; Bin Chen ; Hai-Lin Chen ; Run Xiong
Author_Institution :
Nat. Key Lab. on Electromagn. Environ. Effects & Electro-Opt. Eng., PLA Univ. of Sci. & Technol., Nanjing, China
Abstract :
In this letter, an unconditionally stable one-step leapfrog alternating-direction-implicit finite-difference time-domain (ADI-FDTD) method for body of revolution (BOR) is proposed. It is more computationally efficient while preserving the properties of the original alternating-direction-implicit body of revolution finite-difference time-domain (ADI-BOR-FDTD) method. Due to the singularity, some field components on and adjacent to the axis are treated especially. To verify the accuracy and efficiency of the method, the scattered field from a PEC cylinder with a notch is calculated.
Keywords :
electromagnetic field theory; finite difference time-domain analysis; PEC cylinder; alternating-direction-implicit finite-difference time-domain; body of revolution; electromagnetic problems; field components; scattered field; unconditionally stable one-step leapfrog ADI-BOR-FDTD method; Alternating-direction-implicit (ADI) method; body of revolution finite-difference time-domain (BOR-FDTD) method; one-step leapfrog; unconditional stability;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2013.2261891
