37 citations · 86 across the 9 of their papers we have counts for
9 papers
Physical Origin of the Effective Parameters at Boundaries in Finite Difference Schemes
Sameh Y. ELnaggar, Yahia. M. Antar
Using the Observable form of Maxwell's equations, we reveal that effective parameters at materials boundaries emerge naturally as anisotropic transfer functions. The complexity of…
An Electrodynamics Solver for Moving Sources
Sameh Y. Elnaggar, Yahia. M. M. Antar
An Electrodynamics solver for moving sources is introduced. The main challenges and formulation are highlighted. The solver enables the simulation of fields for sources undergoing…
Analysis of a Wireless Power Transfer System Based on the Interaction of Very High Permittivity Dielectric Resonators with a Contained Aqueous Solution
Sameh. Y. Elnaggar, Chinmoy Saha, Yahia. M. M. Antar
An ab-initio analysis based on coupled mode theory (CMT) is applied to describe the interaction dynamics of high dielectric resonators (DRs) with its containing aqueous solution. W…
Properties of Translation Operator and the Solution of the Eigenvalue and Boundary Value Problems of Arbitrary Space-time Periodic Circuits
Sameh Y. Elnaggar, Gregory. N. Milford
The time periodic circuit theory is exploited to introduce an appropriate translation operator that is invariant under the change of the spatial unit cell. Useful properties of the…
Modelling Space-time Periodic Structures with Arbitrary Unit Cells Using Time Periodic Circuit Theory
Sameh Y. Elnaggar, Gregory N. Milford
Using the time periodic ABCD parameters, an expression for the dispersion relation of space-time modulated structures is obtained. The relation is valid for general structures even…
Wireless Power Transfer via Dielectric Loaded Multi-moded Split Cavity Resonator
Sameh Elnaggar, Chinmoy Saha, Yahia Antar
Wireless power transfer via a dielectric loaded multi-moded split cavity resonator (SCR) is proposed. Unlike conventional inductive resonant coupling, the scheme enables the contro…
Controlling Non-reciprocity using enhanced Brillouin Scattering
Sameh Y. Elnaggar, Gregory N. Milford
The properties of space-time modulated media operating in the sub-sonic regime are discussed based on rigorous Bloch-Floquet theory. A geometrical description in the frequency-wave…
An Electromagnetic Induced Transparency-like Scheme for Wireless Power Transfer Using Dielectric Resonators
Sameh Y. Elnaggar
Similar to the hybridization of three atoms, three coupled resonators interact to form bonding, anti-bonding and non-bonding modes. The non-bonding mode enables an electromagnetic…
Energy Coupled Mode Theory for an arbitrary number of resonators
Sameh Y. Elnaggar, Richard Tervo, Saba M. Mattar
There is recent interest in the inter and intra element interactions of metamaterial unit cells. To calculate the effects of these interactions which can be substantial, an ab init…