Abstract
Various types of antennas and transmission media for electromagnetic waves exhibit symmetry around an axis of rotation and hence called bodies of revolution. The periodic behavior of the fields in the azimuth may be extracted analitycally and the fields everywhere may be found by solving Maxwell's equations in a single two dimension plane. The body of revolution (BOR) approach has been used in the past with different numerical techniques for solving electromagnetic problems. Although the use of BOR approach with the finite difference time domain (FDTD) technique has already been reported, this paper presents an advanced integration of the FDTD-BOR with the perfectly matched layer (PML) absorbing: boundary condition (ABC). This implementation significantly reduces the undesired reflection of outgoing waves due to the mesh truncation for a wide range of frequencies. Good agreement with published computed and measured data are obtained with the developed FDTD-BOR-PML technique for dielectric resonators and m...
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