A Locally Conformal Algorithm for Handling Curved Metallic Surfaces and Its Application |
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| Authors: | Shuhui Yan Bing-Zhong Wang Wenhua Yu and Raj Mittra |
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| Institution: | (1) Institute of Applied Physics, University of Electronic Science and Technology of China, Chengdu, 610054, People's Republic of China;(2) Electrical Engineering Department, Pennsylvania State University, University Park, PA 16802, USA |
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| Abstract: | This paper describes a modified locally conformal algorithm for finite-difference time-domain (FDTD) method. Fields in the entire computational domain are computed by a regular FDTD algorithm except those near curved metallic surfaces, where special techniques proposed in this paper are applied. The computation efficiency of a regular FDTD method is maintained while a high space-resolution is obtained by this new algorithm. To validate the reliability of the algorithm, coaxial continuous transverse stub arrays at millimeter wave Ka-band and microwave X-band are tested, and the simulated results show good agreement with the experimental results from an HP-8510B Network Analyzer and the simulation results from software package HFSS. |
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| Keywords: | FDTD Conformal grid Millimeter wave Antenna |
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