Title :
Analysis of finite vivaldi antenna arrays using a FDTD method
Author :
Barari, Morteza ; Tavakoli, Ahad ; Moeini, Roozbelt
Author_Institution :
Dept. of Electr. Eng., Amirkabir Univ. of Technol., Tehran, Iran
Abstract :
This paper describes a finite difference time domain analysis of finite array of Already designed vivaldi Antennas, including four vivaldi antenna with a ground plane. The effect of diffraction due to finite ground planes, variation in phase velocity, frequency-dependent impedance, interaction between elements and detailed field structures is taken into account. The current distribution, coupling between elements, radiation pattern are calculated. The computed results of the vivaldi antenna array in 12-18 GHz frequency band agree very well with experimental results.
Keywords :
antenna radiation patterns; antenna theory; finite difference time-domain analysis; slot antenna arrays; 12 to 18 GHz; FDTD analysis; current distribution; diffraction effect; element coupling; finite Vivaldi antenna array; frequency-dependent impedance; ground plane; phase velocity; radiation pattern; tapered slot antenna; Antenna arrays; Apertures; Computational modeling; DSL; Finite difference methods; Microstrip antenna arrays; Military computing; Slotline; Time domain analysis; Vivaldi antennas;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2002. Proceedings. ICMMT 2002. 2002 3rd International Conference on
Print_ISBN :
0-7803-7486-X
DOI :
10.1109/ICMMT.2002.1187782
