Electrically small superdirective arrays using parasitic elements

@article{ODonnell2006ElectricallySS,
  title={Electrically small superdirective arrays using parasitic elements},
  author={T. H. O'Donnell and A. D. Yaghjian},
  journal={2006 IEEE Antennas and Propagation Society International Symposium},
  year={2006},
  pages={3111-3114}
}
Electrically small superdirective arrays that are theoretically possible have been shown feasible for two and three element arrays. However the individual elements must be fed separately with the correct input current magnitudes and phases to achieve superdirectivity. In this paper, almost equivalent superdirectivity was obtained with two-element arrays by feeding only one element and shorting the second "parasitic" element. This parasitic array exhibits a new resonant frequency fa0 which is… CONTINUE READING
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