67 citations · 339 across the 15 of their papers we have counts for
15 papers
Wigner-Smith Time Delay Matrix for Electromagnetics: Guiding and Periodic Systems with Evanescent Modes
Yiqian Mao, Utkarsh R. Patel, Eric Michielssen
The Wigner-Smith (WS) time delay matrix relates an electromagnetic system's scattering matrix and its frequency derivative. Previous work showed that the entries of WS time delay m…
Wigner-Smith Time Delay Matrix for Electromagnetics: Systems with Material Dispersion and Losses
Yiqian Mao, Utkarsh R. Patel, Eric Michielssen
The Wigner-Smith (WS) time delay matrix relates a system's scattering matrix to its frequency derivative and gives rise to so-called WS modes that experience well-defined group del…
Wigner-Smith Time Delay Matrix for Acoustic Scattering: Computational Aspects
Utkarsh R. Patel, Yiqian Mao, Jack Hamel +1
The Wigner-Smith (WS) time delay matrix relates an acoustic system's scattering matrix to its wavenumber derivative. The entries of the WS time delay matrix can be expressed in ter…
Wigner-Smith Time Delay Matrix for Acoustic Scattering: Theory and Phenomenology
Utkarsh R. Patel, Yiqian Mao, Eric Michielssen
The Wigner-Smith (WS) time delay matrix relates a lossless system's scattering matrix to its frequency derivative. First proposed in the realm of quantum mechanics to characterize…
Wigner-Smith Time Delay Matrix for Electromagnetics: Computational Aspects for Radiation and Scattering Analysis
Utkarsh R. Patel, Eric Michielssen
The WS time delay matrix relates a lossless and reciprocal system's scattering matrix to its frequency derivative, and enables the synthesis of modes that experience well-defined g…
Wigner-Smith Time Delay Matrix for Electromagnetics: Theory and Phenomenology
Utkarsh R. Patel, Eric Michielssen
Wigner-Smith (WS) time delay concepts have been used extensively in quantum mechanics to characterize delays experienced by particles interacting with a potential well. This paper…