A Near-Field Super-Resolution Network for Accelerating Antenna Characterization
<|reference_start|>A Near-Field Super-Resolution Network for Accelerating Antenna Characterization: We present a deep neural network-enabled method to accelerate near-field (NF) antenna measurement. We develop a Near-field Super-resolution Network (NFS-Net) to reconstruct significantly undersampled near-field data as high-resolution data, which considerably reduces the number of sampling points required for NF measurement and thus improves measurement efficiency. The high-resolution near-field data reconstructed by the network is further processed by a near-field-to-far-field (NF2FF) transformation to obtain far-field antenna radiation patterns. Our experiments demonstrate that the NFS-Net exhibits both accuracy and generalizability in restoring high-resolution near-field data from low-resolution input. The NF measurement workflow that combines the NFS-Net and the NF2FF algorithm enables accurate radiation pattern characterization with only 11% of the Nyquist rate samples. Though the experiments in this study are conducted on a planar setup with a uniform grid, the proposed method can serve as a universal strategy to accelerate measurements under different setups and conditions.<|reference_end|>
@article{gu2024a,
    title={A Near-Field Super-Resolution Network for Accelerating Antenna
  Characterization},
    author={Yuchen Gu, Hai-Han Sun, Daniel W. van der Weide},
    journal={arXiv preprint arXiv:2406.17244},
    year={2024},
    archivePrefix={arXiv},
    eprint={2406.17244},
    primaryClass={eess.SP cs.SY eess.SY}
}