Title :
Analysis of small broadband flare antennas by an improved FD-TD method
Author :
Chen, R.L. ; Liu, Y.W. ; Mei, K.K.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., California Univ., Berkeley, CA, USA
Abstract :
Input impedance, current distribution, and radiation pattern for a small broadband flare antenna are numerically analyzed by an improved finite-difference-time-domain (FD-TD) method. This method is best suited for treating the curvilinear metal boundaries. The selected small flare antennas with appropriate shapes and a size of about 9 cm show a good broadband performance. The results also show that the input impedance is between 150-450 Omega in a wide-frequency range, and that the radiation patterns are similar for the frequencies in the 5-12 GHz range.<>
Keywords :
antenna radiation patterns; antennas; difference equations; electric impedance; time-domain analysis; 150 to 450 ohm; 5 to 12 GHz; FD-TD; SHF; broadband flare antennas; broadband performance; current distribution; curvilinear metal boundaries; finite-difference-time-domain; input impedance; radiation pattern; Boundary conditions; Broadband antennas; Current distribution; Damping; Frequency; Impedance; Microstrip antennas; Reflector antennas; Shape; Transmission line antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1991. AP-S. Digest
Conference_Location :
London, Ontario, Canada
Print_ISBN :
0-7803-0144-7
DOI :
10.1109/APS.1991.174922
