Dual-Band Metasurface-Based Radome for Millimeter-Wave 5G Applications

This contribution presents the design of a dual-band metasurface-based radome (metaradome, MTR) for antenna protection applications in millimeter-wave 5G. The proposed MTR has two transmission bands at 28 GHz and 39 GHz. A parametric study has been carried out to characterize the frequency response of the MTR. Then, the designed MTR has been combined with a reflectarray-based Smart Electromagnetic Skin (SES) to analyze the impact of the MTR on the radiation performance of the SES: first, the MTR unit-cell has been combined with the SES unit-cell to analyze its performance; then, the complete SES has been loaded with the MTR and the radiation patterns of the structure have been computed. The simulated results confirm the potential of the proposed MTR to protect the SES without degrading its performance and allowing for a much more compact design than a conventional half-wavelength radome.