Abstract
Phase switched screen (PSS) has been proposed for more than a decade years for its application on radar cloaking. However, the PSSs in most publications need a thickness of quarter wavelength to realize perfect cloaking at the frequency point of the incident radar-detecting wave, which seems too thick for engineering. In this work, a new PSS is realized by employing tunable AMC structure, from which the phase of the reflected wave can be switched between zero and π easily at different values of the biased current on the PIN diode, and when the biased current is switched periodically, the PSS is available for radar cloaking. The tunable AMC proposed in this work is with a small thickness (less than Ig/10), but capable of realizing in phase reflection and a nearly out-of-phase at the same frequency point, when the PIN diode is in OFF-state and ON-state respectively; meanwhile, the PSS is available for both TE and TM polarizations.
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