Title :
Antenna modeling using stable hybrid FETD-FDTD method
Author :
Venkatarayalu, Neelakantam V. ; Gan, Yeow-Beng ; Lee, Robert ; Li, Le-Wei
Author_Institution :
Nat. Univ. of Singapore, Singapore
Abstract :
The hybrid FETD-FDTD method in Rylander, T. and Bondenson, A. (2002) retains the efficiency of FDTD method in modeling simple geometries while using unstructured FETD method in Lee, J.-F., et al (1997), and Sun, D.-K., et al (2003) to eliminate stair-casing errors in modeling complex geometries. In this paper, we present the development of hybrid FETD-FDTD method and its application in antenna modeling. The requirement on mesh generation and a simple strategy that we use are briefly discussed. Modeling of antenna feed structure which excite transverse electromagnetic(TEM) mode and extraction of input reflection coefficient is presented. Finally, application of the method in the modeling of typical antenna structures is presented.
Keywords :
antenna feeds; finite difference time-domain analysis; mesh generation; antenna feed structure; antenna modeling; antenna structures; input reflection coefficient; mesh generation; stable hybrid FETD-FDTD method; stair-casing errors; transverse electromagnetic mode; unstructured FETD method; Bonding; Electromagnetic modeling; Finite difference methods; Finite element methods; Geometry; Mesh generation; Reflector antennas; Solid modeling; Sun; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2007 IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-0877-1
Electronic_ISBN :
978-1-4244-0878-8
DOI :
10.1109/APS.2007.4396351
