Sectoral Conical Beam Former for a 2 $\times$ 2 Array Antenna

@article{Kim2009SectoralCB,
  title={Sectoral Conical Beam Former for a 2  \$\times\$  2 Array Antenna},
  author={Jae Hee Kim and Wee Sang Park},
  journal={IEEE Antennas and Wireless Propagation Letters},
  year={2009},
  volume={8},
  pages={712-715}
}
We propose a switched feed network for a 2 times 2 array antenna to form a sectoral conical beam. The proposed feed network, which is a symmetrical structure, consists of four 90deg hybrids, a crossover, and four 90deg delay lines. The prototype feed network and a 2 times 2 array antenna were fabricated on microstrip structures. The performance of the feed network was verified by measuring the radiation patterns at the center frequency of 2.57 GHz. The maximum radiation was measured at the… CONTINUE READING

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