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2014-02-19
A Folded Printed Quadrifilar Helical Antenna Employing a Compact Feeding Network
By
Progress In Electromagnetics Research Letters, Vol. 45, 57-61, 2014
Abstract
A folded printed quadrifilar helical antenna (FPQHA) with an integrated and compact feeding network is proposed. The axial length of the proposed antenna is miniaturized of about 54.7% than the conventional PQHA by folding the helix arms into several elements. A T-junction power divider combining with two Wilkinson power dividers is utilized to feed the antenna. A fabricated prototype of the FPQHA using the compact feeding network is presented. The measured positive gain bandwidth covers 380-430 MHz with the reflection coefficient below -20 dB, axial ratio below 1.5 dB and a half-power beamwidth of about 120˚. Details of the proposed antenna design and experimental results are presented and discussed.
Citation
Ping Xu Ze-Hong Yan Xiao-Qiang Yang Tian-Ling Zhang , "A Folded Printed Quadrifilar Helical Antenna Employing a Compact Feeding Network," Progress In Electromagnetics Research Letters, Vol. 45, 57-61, 2014.
doi:10.2528/PIERL14012801
http://www.jpier.org/PIERL/pier.php?paper=14012801
References

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