A Broadband Folded Printed Quadrifilar Helical Antenna Employing a Novel Compact Planar Feeding Circuit

@article{Caillet2010ABF,
  title={A Broadband Folded Printed Quadrifilar Helical Antenna Employing a Novel Compact Planar Feeding Circuit},
  author={Mathieu Caillet and Michel Clénet and Ala Sharaiha and Yahia M. M. Antar},
  journal={IEEE Transactions on Antennas and Propagation},
  year={2010},
  volume={58},
  pages={2203-2209}
}
A broadband printed quadrifilar helical antenna employing a novel compact feeding circuit is proposed in this paper. This antenna presents an excellent axial ratio over a wide beamwidth, with a 29% bandwidth. A specific feeding circuit based on an aperture-coupled transition and including two 90° surface mount hybrids has been designed to be integrated with the quadrifilar antenna. Over the bandwidth, the measured reflection coefficient of the antenna fed by the wideband compact circuit has… CONTINUE READING

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