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- Title
Printed quadrifilar helix antenna with enhanced bandwidth.
- Authors
Zhi-Ya Zhang; Long Yang; Shao-Li Zuo; Rehman, Masood Ur; Guang Fu; Chuangzhu Zhou
- Abstract
A circular polarised printed quadrifilar helix antenna with enhanced bandwidth is proposed in this study. The helix antenna offers a very compact size and comprises of four arms with varying width, four open stubs, a feeding network and a metal ground plane. The different widths of the helix arms are employed to improve the impedance bandwidth while their varying pitches generate a cardioid radiation pattern. The antenna exhibits a voltage standing wave ratio = 2 in the frequency range of 1.43-1.63 GHz offering impedance bandwidth of 12%. Good radiation characteristics with high gain, a wide 3 dB axial ratio beamwidth of 180° along with small size makes this antenna an excellent candidate for satellite communications and navigation systems.
- Subjects
BANDWIDTHS; POLARIZATION (Electricity); ELECTRIC potential; ELECTRIC properties of metals; ANTENNA radiation patterns
- Publication
IET Microwaves, Antennas & Propagation (Wiley-Blackwell), 2017, Vol 11, Issue 5, p732
- ISSN
1751-8725
- Publication type
Article
- DOI
10.1049/iet-map.2016.0812