Title :
Parametric study of Vivaldi antenna
Author :
Kota, Krishna ; Shafai, Lotfollah
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Manitoba, Winnipeg, MB
Abstract :
A parametric study of a wide-band Vivaldi antenna is presented. Four models were simulated using a finite element method design and analysis package Ansoft HFSS v 10.1. The simulated return loss and realized gain of each model for a frequency range of 12 to 20 GHz is studied. The location of the phase centre, represented as the distance d (in cm) from the bottom of the antenna, with respect to which the phase of the respective far field copolar patterns (for a scan angle thetas of 0 to 60deg) in the E and H-planes, constrains to a specified maximum tolerable phase difference Deltaphi is calculated.
Keywords :
antenna radiation patterns; broadband antennas; electrical engineering computing; finite element analysis; microwave antennas; Ansoft HFSS v 10.1 package; E-H plane; far field copolar pattern; finite element method; frequency 12 GHz to 20 GHz; parametric study; phase centre location; phase difference; return loss; wide-band Vivaldi antenna; Broadband antennas; Computational modeling; Conductors; Dielectric substrates; Equations; Frequency; Microstrip antennas; Parametric study; Stripline; Vivaldi antennas;
Conference_Titel :
Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting, 2009. ANTEM/URSI 2009. 13th International Symposium on
Conference_Location :
Toronto, ON
Print_ISBN :
978-1-4244-2979-0
Electronic_ISBN :
978-1-4244-2980-6
DOI :
10.1109/ANTEMURSI.2009.4805083
