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Design of a Dual-Band Quadrifilar Helix Antenna Using Stepped-Width Arms
- Authors
- Byun, Gangil; Choo, Hosung; Kim, Sunwoo
- Issue Date
- Apr-2015
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Global positioning system (GPS) antennas; helix antennas; quadrifilar helix antennas (QHAs)
- Citation
- IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, v.63, no.4, pp.1858 - 1862
- Journal Title
- IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
- Volume
- 63
- Number
- 4
- Start Page
- 1858
- End Page
- 1862
- ISSN
- 0018-926X
- 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.
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Related Researcher
- Choo, Ho sung
- Engineering (Electronic & Electrical Engineering)