Title :
Finite-volume time-domain (FVTD) method and its application to the analysis of hemispherical dielectric-resonator antennas
Author :
Baumann, D. ; Fumeaux, C. ; Leuchtmann, P. ; Vahldieck, R.
Author_Institution :
ETHZ, Swiss Fed. Inst. of Technol., Zurich, Switzerland
Abstract :
In this paper, the finite-volume time-domain (FVTD) method is refined and applied to analyze a probe-fed hemispherical dielectric resonator antenna (DRA). To improve the applicability of the FVTD method to microwave problems, a new scheme is introduced taking advantage of the method´s inherent flux separation into incoming and outgoing waves. A 3D simulation is performed using an unstructured tetrahedral mesh permitting precise modeling of curved surfaces and fine structures. The obtained results are compared to those from other methods.
Keywords :
S-parameters; antenna radiation patterns; computational electromagnetics; dielectric resonator antennas; electronic engineering computing; finite volume methods; mesh generation; time-domain analysis; DRA; FVTD; antenna radiation patterns; computational electromagnetics; curved surface/fine structure modeling; finite-volume time-domain methods; incoming/outgoing wave flux separation; mesh generation; probe-fed hemispherical dielectric-resonator antennas; scattering parameters; unstructured tetrahedral meshes; Computational electromagnetics; Computational modeling; Dielectric resonator antennas; Finite difference methods; Integral equations; Maxwell equations; Microwave devices; Microwave theory and techniques; Shape; Time domain analysis;
Conference_Titel :
Microwave Symposium Digest, 2003 IEEE MTT-S International
Conference_Location :
Philadelphia, PA, USA
Print_ISBN :
0-7803-7695-1
DOI :
10.1109/MWSYM.2003.1212534
