Nonreciprocal Yagi–Uda Filtering Antennas

  title={Nonreciprocal Yagi–Uda Filtering Antennas},
  author={Jiawei Zang and X. T. Wang and Alejandro {\'A}lvarez Melc{\'o}n and Juan Sebasti{\'a}n G{\'o}mez-D{\'i}az},
  journal={IEEE Antennas and Wireless Propagation Letters},
This letter proposes a novel and compact nonreciprocal filtering antenna based on temporal modulation. The device is composed of a third-order filtering section integrated into a Yagi–Uda planar printed antenna. Strong nonreciprocity in transmission and reception is achieved at the same operation frequency by time-modulating the resonators of the filtering section. These resonators are implemented as quarter-wavelength microstrip lines terminated with varactors located on the ground plane. Such… 

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