Title :
Analysis of circular horn antennas using the FD-TD method
Author :
Mroczkowski, C. ; Gwarek, W.K. ; Morawski, T. ; Modelski, J.
Author_Institution :
Warsaw Univ. of Technol., Poland
Abstract :
Application of the vector two-dimensional FD-TD (finite-difference time-domain) method to the analysis of circular horn antennas is presented. An antenna should maintain axial symmetry of boundary conditions and can be arbitrarily shaped in two other directions, in the cylindrical coordinate system. The medium filling the antenna can be inhomogeneous. Modes of excitation of sinusoidal dependence on angle can be considered. A full-wave solution is obtained. An example of a circular horn antenna has been computed and compared with experimental data.<>
Keywords :
antenna theory; circular waveguides; finite difference time-domain analysis; horn antennas; FD-TD method; angle; axial symmetry; boundary conditions; circular horn antennas; cylindrical coordinate system; full-wave solution; medium; sinusoidal dependence; vector two-dimensional FD-TD; Adaptive arrays; Boundary conditions; Directive antennas; Electromagnetic scattering; Horn antennas; Microwave circuits; Partial differential equations; Time domain analysis; Transmission line matrix methods; Voltage;
Conference_Titel :
Microwave Symposium Digest, 1992., IEEE MTT-S International
Conference_Location :
Albuquerque, NM, USA
Print_ISBN :
0-7803-0611-2
DOI :
10.1109/MWSYM.1992.188002
