Title :
Bandwidth enhancement of a hemispherical helical antenna using a parasitic wire
Author :
Latef, T.A. ; Khamas, S.K.
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. of Sheffield, Sheffield, UK
Abstract :
A hemispherical helical antenna that is radiating in the presence of a conformal parasitic wire has been studied. The attained results demonstrate that the 3 dB axial ratio (AR) bandwidth can be increased by ~100% for an optimized length and position of the parasitic wire. The analysis has been implemented using the method of moments (MoM), and the results have been compared with simulations using a commercial software package with good agreement.
Keywords :
helical antennas; bandwidth enhancement; commercial software package; conformal parasitic wire; hemispherical helical antenna; method of moments; optimized length; Bandwidth; Dielectric resonator antennas; Helical antennas; Impedance; Moment methods; Wire;
Conference_Titel :
Antennas and Propagation Conference (LAPC), 2010 Loughborough
Conference_Location :
Loughborough
Print_ISBN :
978-1-4244-7304-5
DOI :
10.1109/LAPC.2010.5666258
