학술논문
A Hybrid 2D/3D cylindrical FDTD method based on azimuthal mode decomposition
Document Type
Conference
Author
Source
Proceedings of the 2012 IEEE International Symposium on Antennas and Propagation Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE. :1-2 Jul, 2012
Subject
Language
ISSN
1522-3965
1947-1491
1947-1491
Abstract
A method to overcome unfavorably small time steps in FDTD simulations on cylindrical meshes is proposed in this paper. A three dimensional cylindrical grid for azimuthally inhomogeneous regions apart from the z-axis is coupled to a multi modal two dimensional grid in the vicinity of the origin. This leads to a diminished ammount of mesh cells and, furthermore, permits the employment of a larger time step. The method is demonstrated by means of a time domain simulation of a microgear resonator to determine its resonant frequencies.