Which root finding method is proper for obtaining dispersion diagram of cylindrical infinite nanowire from its dispersion equation?

I am trying to numerically find roots of an infinite metallic nanowire to plot dispersion diagram. I write a "for" loop in MATLAB, and set frequency value at each time, and then proceed to find...

05 June 2016 6,953 3 View

Is ellipsometry able to provide permeability of thin film in addition to permitivity?

18 April 2016 7,034 4 View

Is ellipsometry able to provide permeability of thin film in addition to permitivity?

03 April 2016 9,388 5 View

How can I plot a dispersion diagram of a periodic structure made up of metallic pins laid under a metallic plate?

I want to obtain dispersion diagram of the periodic structure with CST. The structure is finite in transverse direction: "A row of pins which consists 7 pins laid under a metallic plate. The...

04 May 2014 7,576 13 View

What is the difference between slot coupling and probe coupling in designing a transition from rectangular waveguide to microstrip?

I want to design a transition from rectangular waveguide to microstrip. But I don't know which method is better: slot coupling or probe coupling.

01 February 2014 2,645 4 View

How to obtain S parameters of a ridge waveguide in HFSS?

I want to obtain the S parameters of a ridge waveguide in HFSS by putting two waveports at the two ends of the waveguide. But the S21 becomes so small (about -10dB). I think it is probably due to...

27 January 2014 3,031 4 View

How to design a transition from coax to waveguide?

20 January 2014 4,861 6 View

How to design a transition from coax to waveguide?

31 December 2013 5,132 8 View

How to obtain S parameters of a ridge waveguide in HFSS?

I want to obtain the S parameters of a ridge waveguide in HFSS by putting two waveports at the two ends of the waveguide. But the S21 becomes so small (about -10dB). I think it is probably due to...

31 December 2013 945 5 View

How to export all tables obtained from parameter sweep in CST together?

I have simulated a waveguide structure in CST with the eigenmode solver. Each resulting table is related to a mode and I want to plot the dispersion diagram in MATLAB. But it seems impossible to...

11 December 2013 7,089 10 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

Help request in CST microwave?

im working now on TPV solar cells and metamaterials and i realy need our help in CST microwave i have a tpv cell simulation and i want to extract particullarly the absorbtion of only the active...

02 March 2021 2,246 2 View

Which SAR dataset to use for generating coherency matrix and performing target decomposition (Description) ?

Working on chandrayaan-2 DFSAR data, there are three datasets available: 1) Slant range image data product: The slant range complex image file. Each pixel is represented by two 4-byte floating...

02 March 2021 8,481 3 View