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SsDRA prototypes: (a) Clear V04 resin SsDRA (DRA1); (b) Grey V04 resin SsDRA (DRA2); (c) Tough blue V05 resin SsDRA (DRA3); (d) Coaxial cable, SMA connector, and pins on the ground plane; (e) Top view of the assembled SsDRA prototype; (f) Detailed view of the SsDRA’s origin with feed guides.
