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Byun, Gangil
Antenna Technology Lab.
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Design of a Dual-Band Quadrifilar Helix Antenna Using Stepped-Width Arms

Author(s)
Byun, GangilChoo, HosungKim, Sunwoo
Issued Date
2015-04
DOI
10.1109/TAP.2015.2398463
URI
https://scholarworks.unist.ac.kr/handle/201301/23320
Fulltext
http://ieeexplore.ieee.org/document/7027786/
Citation
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, v.63, no.4, pp.1858 - 1862
Abstract
This communication proposes the design of a quadrifilar helix antenna (QHA) with stepped-width arms and a meander feeding network. The stepped-width arms are applied to reduce the antenna size and adjust the frequency interval for dual-band operation. The feeding network includes a 90 degrees-hybrid chip coupler and two meander lines that are designed to give a 180 degrees-phase delay. The proposed QHA is optimized using a genetic algorithm (GA) and then fabricated to measure its performances in a full anechoic chamber. The results demonstrate that the proposed antenna is suitable to be used for dual-band global positioning system (GPS) applications.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
ISSN
0018-926X
Keyword (Author)
Global positioning system (GPS) antennashelix antennasquadrifilar helix antennas (QHAs)

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