Elliptical helical antenna with parasitic wire for CP band enhancement

In this paper, elliptical helical antenna with parasitic element is proposed to radiate the circularly polarized waves. By winding a parasitic wire properly in parallel with the elliptical helical antenna, the axial ratio bandwidth is enhanced, and simple single feeding mechanism is maintained. The...

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Published in2007 IEEE Antennas and Propagation Society International Symposium pp. 2997 - 3000
Main Authors Ze-Hai Wu, Wen-Quan Che, Bin Fu, Pui-Yi Lau, Yung, E.K.N.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2007
Subjects
Antenna measurements
Bandwidth
Dielectric materials
Dielectric measurements
Directive antennas
Frequency
Helical antennas
Impedance measurement
Polarization
Wire
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Summary:In this paper, elliptical helical antenna with parasitic element is proposed to radiate the circularly polarized waves. By winding a parasitic wire properly in parallel with the elliptical helical antenna, the axial ratio bandwidth is enhanced, and simple single feeding mechanism is maintained. The simulation by IE3D shows that the CP bandwidth can be increased from 13.6% to 25%, and the directivity is enhanced by 2dB in the frequency band when the eccentricity of the cross-section is 0.94.
ISBN:9781424408771
1424408776
ISSN:1522-3965
1947-1491
DOI:10.1109/APS.2007.4396166