Design of a Dual-Band Quadrifilar Helix Antenna Using Stepped-Width Arms

Title
Design of a Dual-Band Quadrifilar Helix Antenna Using Stepped-Width Arms
Author
김선우
Keywords
Global positioning system antennas; GPS antennas; helix antennas; quadrifilar helix antennas; QHAs
Issue Date
2015-04
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, v. 63, NO 4, Page. 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.
URI
http://ieeexplore.ieee.org/document/7027786/?arnumber=7027786http://hdl.handle.net/20.500.11754/23660
ISSN
0018-926X; 1558-2221
DOI
10.1109/TAP.2015.2398463
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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