7 citations · 42 across the 11 of their papers we have counts for
4 papers · 1 filter
Traveling Wave Tube Eigenmode Solver for Interacting Hot Slow Wave Structure Based on Particle-In-Cell Simulations
Tarek Mealy, Filippo Capolino
A scheme to characterize the dynamics of the electron beam-electromagnetic power exchange along a traveling wave tube (TWT) is proposed. The method is based on defining a state vec…
Frozen Mode in Three-Way Periodic Microstrip Coupled Waveguide
Mohamed Y. Nada, Tarek Mealy, Filippo Capolino
We demonstrate theoretically and experimentally that a periodic three-way microstrip coupled waveguide exhibits a stationary inflection point (SIP). The SIP is a third order except…
Exceptional Point of Degeneracy in Linear-Beam Tubes for High Power Backward-Wave Oscillators
Tarek Mealy, Ahmed F. Abdelshafy, Filippo Capolino
Abstract An exceptional point of degeneracy (EPD) is induced in a system made of an electron beam interacting with an electromagnetic (EM) guided mode. This enables a degenerate sy…
General Conditions to Realize Exceptional Points of Degeneracy in Two Uniform Coupled Transmission Lines
Tarek Mealy, Filippo Capolino
We present the general conditions to realize a fourth order exceptional point of degeneracy (EPD) in two uniform (i.e., invariant along z) lossless and gainless coupled transmissio…