Photonic dual RF beam reception of an X band phased array antenna using a photonic crystal fiber-based true-time-delay beamformer.

@article{Subbaraman2008PhotonicDR,
  title={Photonic dual RF beam reception of an X band phased array antenna using a photonic crystal fiber-based true-time-delay beamformer.},
  author={Harish Subbaraman and Maggie Yihong Chen and Ray T. Chen},
  journal={Applied optics},
  year={2008},
  volume={47 34},
  pages={
          6448-52
        }
}
We report dual RF beam reception of an X band phased array antenna using a photonic crystal fiber (PCF)-based delay network. Each incoming RF signal can be independently received, and the angle of arrival can be determined based on the delay time-dependent wavelength. Two RF signals with frequencies 8.4 and 12 GHz impinge upon an X-band antenna array from -7.4 degrees and -21.2 degrees . These signals are detected, and the angle of arrival is determined with a very good degree of accuracy using… 
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