Dimitrios V. Peponis

4 Questions 7 Answers 0 Followers

Questions related from Dimitrios V. Peponis

How can the S Balance of lossless structure be interpreted and what is its relation with possible resonances?

As far as I know, S Balance denotes the dissipated power from a structure's ports, and it is equal to unity for a lossless structure. I considered the following simplified structure: A smooth...

10 November 2022 6,934 0 View

Does an inertial force needed to be added in Newton's second law when transforming it from Cartesian to cylindrical coordinates?

Lets assume a body rotating and m*du/dt=F, where u=(ux,uy,uz) and F=(Fx,Fy,Fz). If I would like to express the velocity in cylindrical coordinates, should I add an additional inertial force, such...

14 January 2019 6,496 3 View

Can we use Busch theorem to find the beam radius and the Larmor radius at any axial position?

The question is fairly simple In the book "Gyrotrons: High-Power Microwave and Millimeter Wave Technology" from M. V. Kartikeyan, Edith Borie, Manfred Thumm, in page 107 a generalization of Busch...

22 May 2015 1,362 2 View

How can numerical wavenumber in a waveguide FDTD Simulation be calculated?

A.Taflove's book "Computational Electrodynamics" explains well about dispersion in numerical schemes. But how can numerical wavenumber be actually be calculated, when only spatial steps and...

14 December 2012 7,733 5 View