An electronically reconfigurable artificial magnetic conductor (RAMC) includes
a frequency selective surface (FSS) having an effective sheet capacitance which
is variable to control resonant frequency of the RAMC. In one embodiment, the RAMC
further includes a conductive backplane structure and a spacer layer separating
the conductive backplane structure and the FSS. The spacer layer includes conductive
vias extending between the conductive backplane structure and the FSS, and voltage
variable capacitive circuit elements coupled with the FSS and responsive to bias
voltages applied on one or more bias signal lines routed through the conductive
backplane structure and the conductive vias.
