A novel mm-wave all-dielectric structure based on Huygens' metasurfaces is proposed to engineer the radiation fields of a 2D slot array antenna, and demonstrated using full-wave simulations. The proposed metasurface consists of elliptically-shaped resonators whose geometrical dimensions can be engineered to enable rich wave transformation capabilities. They are placed on top of the slot antenna array in its near-field zone and designed to transform the intrinsic uniform field distribution of the antenna to desired radiation patterns. A beam-tilting example has been presented to demonstrate the proposed principle.

Additional Metadata
Keywords electromagnetic metasurfaces, Huygens' Sources, millimeter-wave antennas, near-field operation, slot arrays
Conference 13th European Conference on Antennas and Propagation, EuCAP 2019
Citation
Gupta, S, Tomura, T. (Takashi), Sakurai, S. (Soichi), King, D.J. (Daniel J.), & Hirokawa, J. (Jiro). (2019). Millimeter-wave Huygens' Metasurfaces based on All-dielectric Resonators for Antenna Beam-forming. In 13th European Conference on Antennas and Propagation, EuCAP 2019.