  In this study, we numerically demonstrate how the response of recently
reported circuit-based metasurfaces is characterized by their circuit
parameters. These metasurfaces, which include a set of four diodes as a full
wave rectifier, are capable of sensing different waves even at the same
frequency in response to the incident waveform, or more specifically the pulse
width. This study reveals the relationship between the electromagnetic response
of such waveform-selective metasurfaces and the SPICE parameters of the diodes
used. First, we show that reducing a parasitic capacitive component of the
diodes is important for realization of waveform-selective metasurfaces in a
higher frequency regime. Second, we report that the operating power level is
closely related to the saturation current and the breakdown voltage of the
diodes. Moreover, the operating power range is found to be broadened by
introducing an additional resistor into the inside of the diode bridge. Our
study is expected to provide design guidelines for circuit-based
waveform-selective metasurfaces to select/fabricate optimal diodes and enhance
the waveform-selective performance at the target frequency and power level.
