Fig. 12

The single-sensor single-frequency imager based on a 2-bit programmable metasurface. a The fabricated metasurface and the measurement configuration. (from Fig. 4 of Ref. [83]). b The sampled information of the generalized system response matrix. (from Fig. 4 of Ref. [83]). c Three metallic objects for imaging. (from Fig. 4 of Ref. [83]). d The measured imaging results for the objects in (C). (from Fig. 4 of Ref. [83]). Reproduced with permission from Ref. [83] under a Creative Commons Attribution 4.0 International License