153 citations · 197 across the 7 of their papers we have counts for
7 papers
Universal radiation dynamics by temporal transitions in optical waveguides
Amir Shlivinski, Yakir Hadad
When an excited electromagnetically open optical waveguide goes through a temporal transition of its material properties, it radiates to the ambient surroundings. In this letter, w…
Optimal Design of Dallenbach Absorbers Under Broadband Broad-Angle Illumination
Chen Firestein, Amir Shlivinski, Yakir Hadad
The classical scenario where a \emph{single plane-wave} field impinge a Dallenbach absorber is well studied both theoretically and experimentally. However, occasionally a \emph{spe…
Sum Rule Bounds Beyond Rozanov Criterion in Linear and Time-Invariant Thin Absorbers
Chen Firestein, Amir Shlivinski, Yakir Hadad
Dallenbach layer is composed of an absorbing magnetic-dielectric layer attached to a perfect electric conductor (PEC) sheet. Under linearity and time invariance (LTI) assumptions R…
Parasitic Element Time-Modulation for Enhanced Effective Inter-Antenna Coupling: Utilization for Improved Gain-Bandwidth
Amir Shlivinski, Yakir Hadad
Time variation has been recently introduced as an additional degree of freedom for wave engineering, that enables going beyond the performances that are expected by linear time-inv…
Absorption and scattering by a temporally switched lossy layer: Going beyond the Rozanov bound
Chen Firestein, Amir Shlivinski, Yakir Hadad
In this paper we study the electromagnetic scattering, absorption, and performance bounds for short time modulated pulses that impinge on a time-varying lossy layer that is sandwic…
Soft Temporal Switching of TL Parameters: Wave-field, Energy Balance, Applications
Yakir Hadad, Amir Shlivinski
Time-varying guiding structures introduce an additional degree of freedom, besides spatial-variation, that enables better control over the guided wave in a device. Periodically tim…
Beyond the Bode-Fano Bound: Wideband Impedance Matching for Short-Pulses using Temporal Switching of Transmission-Line Parameters
Amir Shlivinski, Yakir Hadad
Impedance matching is one of the most important practice in wave engineering as it enables to maximize the power transfer from the signal source to the load in the wave system. Unf…