Vallejo, JorgeMartinez-de-Rioja, EduardoArboleya, Ana2024-10-282024-10-282024-03J. Vallejo, E. Martinez-de-Rioja and A. Arboleya, "Dual-Band Reflectarray-Based Electromagnetic Skin to Provide Millimeter-Wave Coverage in the 28/60-GHz Bands," 2024 18th European Conference on Antennas and Propagation (EuCAP), Glasgow, United Kingdom, 2024, pp. 1-5, doi: 10.23919/EuCAP60739.2024.10501542978-88-31299-09-1https://hdl.handle.net/10115/40794In this contribution, a low-profile dual-band smart electromagnetic skin (SES) is proposed to improve wireless communications in millimeter-wave 5G. The SES is based on a single-layer reflectarray panel that can operate simultaneously at the 28 and 60 GHz bands. The reflectarray unit-cell consists of a central lower frequency element which is surrounded by four higher frequency elements. The SES has been designed to provide a different coverage for each frequency (i.e., two separate beams with different pointing directions). A beamforming technique has been applied to broaden the beams in azimuth and achieve a wider coverage. The proposed device can be used to enable wireless communications in millimeter-wave 5G by providing enhanced coverage in nonline-of-sight (NLOS) scenarios.enginfo:eu-repo/semantics/conferenceObject10.23919/EUCAP60739.2024.10501542info:eu-repo/semantics/closedAccess