Open AccessExperimental demonstration of nonlinear waveform‐dependent metasurface absorber with pulsed signals
Author(s) -
Wakatsuchi H.,
Rushton J.J.,
Lee J.,
Gao F.,
Jacob M.,
Kim S.,
Sievenpiper D.F.
Publication year - 2013
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2013.3010
Subject(s) - waveform , duty cycle , capacitor , resistor , signal (programming language) , nonlinear system , pulsed power , optics , power (physics) , energy (signal processing) , diode , pulse width modulation , physics , optoelectronics , arbitrary waveform generator , pulse (music) , materials science , voltage , computer science , detector , programming language , quantum mechanics
The absorbing performance of a nonlinear waveform‐dependent metasurface with pulsed signals is demonstrated. The metasurface is a periodic structure containing diodes, capacitors and resistors. These enable us to first rectify a high‐power incoming signal to a static field, then store the energy during the illumination and dissipate it before the next pulse comes in. The incident pulses contain a finite width of spectrum of around 4.2 GHz. By using the nonlinear metasurface, absorption that depends on both the power and the duty cycle of the incoming signals is measured. These measurements demonstrate the first waveform‐dependent absorbing metasurface.