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Progress In Electromagnetics Research C
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A BROADBAND PRINTED QUADRIFILAR HELICAL ANTENNA WITH A NOVEL COMPACT BROADBAND FEEDING NETWORK

By X.-Q. Yang, Z.-H. Yan, P. Xu, T.-L. Zhang, Z. Zhu, and T. Liang

Full Article PDF (391 KB)

Abstract:
A broadband printed quadrifilar helical antenna (BPQHA) integrated with a broadband feeding network for satellite communications is proposed. Using a multiple arm technique, satisfactory antenna characteristics over a wide bandwidth are realized. To feed the antenna, a novel compact broadband feeding network composed of a frequency independent 180° out-of-phase power divider, two Wilkinson power dividers and two broadband 90° phase shifters is designed. The measured boresight gain remains positive with a reflection coefficient lower than -11 dB over a bandwidth of approximately 26%. The axial ratio is below 1.7 dB and the half-power beamwidth is more than 120° over the same bandwidth. Details of the proposed antenna design are provided and discussed, as well as the experimental results.

Citation:
X.-Q. Yang, Z.-H. Yan, P. Xu, T.-L. Zhang, Z. Zhu, and T. Liang, "A Broadband Printed Quadrifilar Helical Antenna with a Novel Compact Broadband Feeding Network," Progress In Electromagnetics Research C, Vol. 51, 103-109, 2014.
doi:10.2528/PIERC14043008

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