Title :
A new model for coupling a one-dimensional transmission line to FDTD grid for transient excitation of antennas
Author :
Mäkinen, R. ; Salonen, P. ; Kivikoski, M.
Author_Institution :
Inst. of Electron., Tampere Univ. of Technol., Finland
Abstract :
A new model for coupling a coaxial cable modeled as a one-dimensional transmission line to an FDTD grid is proposed. The TEM mode is not assumed at the intersection of the coaxial cable and FDTD grid. Instead, at the intersection the transverse electric field components around the center probe need not to be symmetrical and the longitudinal magnetic field component is not assumed zero. For unsymmetrical structures the proposed model describes the problem more accurately compared to a model where the TEM mode is assumed
Keywords :
antenna theory; coaxial cables; finite difference time-domain analysis; transmission line theory; FDTD grid; center probe; coaxial cable; longitudinal magnetic field component; one-dimensional transmission line coupling; transient antenna excitation; transverse electric field components; unsymmetrical structures; Coaxial cables; Computational modeling; Couplings; Feeds; Finite difference methods; Magnetic fields; Power system transients; Solid modeling; Time domain analysis; Transmission lines;
Conference_Titel :
Microwave Conference, 2000 Asia-Pacific
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6435-X
DOI :
10.1109/APMC.2000.925820
