4 papers
Time-Varying Wireless Power Transfer Systems for Improving Efficiency
X. Wang, I. Krois, N. Ha-Van +4
Conventional wireless power transfer systems are linear and time-invariant, which sets fundamental limitations on their performance, including a tradeoff between transfer efficienc…
Electromagnetic Effects in Anti-Hermitian Media with Gain and Loss
L. Freter, M. S. Mirmoosa, A. Sihvola +2
Incorporating both gain and loss into electromagnetic systems provides possibilities to engineer effects in unprecedented ways. Concerning electromagnetic effects in isotropic medi…
Time-modulated circuits and metasurfaces for emulating arbitrary transfer functions
Grigorii Ptitcyn, Mohammad Sajjad Mirmoosa, Silvi Hrabar +1
Temporal modulation unlocks possibilities to dynamically control and modify the response of electromagnetic systems. Employing explicit dependencies of circuit or surface parameter…
Controlling surface waves with temporal discontinuities of metasurfaces
Xuchen Wang, Mohammad Sajjad Mirmoosa, Sergei A. Tretyakov
In this paper, we investigate the scattering of surface waves on reactive impedance boundaries when the surface impedance undergoes a sudden change in time. We report three exotic…