Quasi-Optical Excitation of Modulated Metasurface Antennas

Multi-beam modulated metasurface antenna for 5G backhaul applications at K-band

“…The antenna dimensions are sketched in Figures 1 and 3, from where we emphasize a very low profile, with a total thickness of 1.28 mm. The main advantage of operating at a higher frequency with respect to the X-band model in [10] is the reduction of the antenna dimensions. First, for the require bandwidth, it is possible to employ a thinner substrate that keeps providing the needed impedance range (Figure 2), which enforces the low-profile faculty of the system.…”

“…By adding a modulated MTS on the top layer (Figure 1), one obtains a compact antenna. A pillbox-fed modulated MTS antenna at X-band was described in [10]. As mentioned before, the entire design process can be adapted for other frequency bands by properly modifying the material, the beamformer, and the MTS elements dimensions.…”

“…As mentioned before, the entire design process can be adapted for other frequency bands by properly modifying the material, the beamformer, and the MTS elements dimensions. Thus, in this work, we use a strategy similar to that described in [10] to design an antenna operating at f o = 20.7 GHz.…”