Axially Steered Spots of Near-Field Fresnel Zone Plate Lens With Sweeping Frequency

@article{Li2014AxiallySS,
  title={Axially Steered Spots of Near-Field Fresnel Zone Plate Lens With Sweeping Frequency},
  author={Zhiping Li and Zhengpeng Wang and Jianhua Wu and Hua Tian},
  journal={IEEE Antennas and Wireless Propagation Letters},
  year={2014},
  volume={13},
  pages={955-958}
}
The frequency performance of near-field fresnel zone plate (NFFZP) is of fundamental interest in electromagnetic field. An NFFZP lens is designed to focus a spherical wave at a spot. The spots of NFFZP lens are electronically steered forward and backward on the axis according to the operating frequency. Several nonlinear formulas are derived to describe the… CONTINUE READING