  The planewave response of a bicontrollable metasurface absorber with
graphene-patched pixels was simulated in the X band using commercial software.
Each square meta-atom is a 4x4 array of 16 pixels, some patched with graphene
and the others unpatched. The pixels are arranged on a PVC skin which is placed
on a copper-backed YIG substrate. Graphene provides electrostatic
controllability and YIG provides magnetostatic controllability. Our design
delivers absorptance equal to or in excess of 0.9 over a 100-MHz spectral
regime in the X band, with 360 MHz/kA magnetostatic controllabity rate and 1 Hz
m/V electrostatic controllability rate. Notably, electrostatic control via
graphene in the GHz range is novel.
