activity
20162022
most citedExceptional Points of Degeneracy in Periodic Coupled Waveguides and the Interplay of Gain and Radiation Loss: Theoretical and Experimental Demonstration

47 citations · 59 across the 5 of their papers we have counts for

collaborators

6 papers

physics.app-ph2022

Pulse Generation Based on a Microstrip Circuit with Fourth Order Degenerate Band Edge

Dmitry Oshmarin, Alireza Nikzamir, Michael M. Green +1

A pulse generation scheme is proposed based on a structured resonance in a cavity where the non-conventional energy distribution is concentrated in its middle part. The cavity is f…

physics.app-ph2021★ 6 cited

Experimental Demonstration of a New Oscillator Concept Based on Degenerate Band Edge in Microstrip Circuit

Dmitry Oshmarin, Ahmed F. Abdelshafy, Alireza Nikzamir +2

The first experimental demonstration of an oscillator based on a periodic, resonant microstrip circuit with a degenerate band edge (DBE) is presented. The DBE is a fourth-order exc…

physics.app-ph2020

Distributed Degenerate Band Edge Oscillator

Ahmed F. Abdelshafy, Dmitry Oshmarin, Mohamed A. K. Othman +2

We propose a new class of oscillators by engineering the dispersion of two-coupled periodic waveguides to exhibit a degenerate band edge (DBE). The DBE is an exceptional point of d…

physics.app-ph2019

Experimental Demonstration of Sixth Order Degenerate Band Edge in Coupled Microstrip Waveguides

Farshad Yazdi, Dmitry Oshmarin, Tarek Mealy +3

We show the physical realization and experimental demonstration of an exceptional point of 6th order degeneracy in a triple ladder (or three-way) microwave waveguide realized using…

physics.app-ph2018★ 47 cited

Exceptional Points of Degeneracy in Periodic Coupled Waveguides and the Interplay of Gain and Radiation Loss: Theoretical and Experimental Demonstration

Ahmed F. Abdelshafy, Mohamed A. K. Othman, Dmitry Oshmarin +2

We present a novel paradigm for dispersion engineering in coupled transmission lines (CTLs) based on exceptional points of degeneracy (EPDs). We develop a theory for fourth-order E…

physics.class-ph2016★ 6 cited

Oscillator Based on Lumped Double Ladder Circuit with Band Edge Degeneracy

Dmitry Oshmarin, Farshad Yazdi, Mohamed A. K. Othman +4

An oscillator design based on a periodic, double ladder resonant circuit is proposed. The circuit exhibits a degenerate band edge (DBE) in the dispersion diagram of its phase-frequ…