Search found 90 matches

by montanaviking
Thu 24 Oct 2019, 05:42
Forum: Install
Topic: Python error no attribute '__reduce_cython__'
Replies: 5
Views: 9817

Re: Python error no attribute '__reduce_cython__'

Hi Thorsten, Thanks, I think I had followed the install procedure you gave here in your last post to me. I'll keep just using Octave and see no real compulsion to go to Python yet. I plan to use this on 3-D simulations to compare to Keysight ADS 2-D simulations on our upcoming carbon nanotube amplif...
by montanaviking
Wed 23 Oct 2019, 18:43
Forum: Install
Topic: Python error no attribute '__reduce_cython__'
Replies: 5
Views: 9817

Re: Python error no attribute '__reduce_cython__'

Hi Thorsten, I'm very thankful you're still supporting openEMS after all these years! Thanks again for these tools. I'm a bit of an novice with github but I went to https://github.com/thliebig/openEMS and clicked on the green clone or download button and got the zip file. It looks like the latest re...
by montanaviking
Tue 22 Oct 2019, 23:31
Forum: Install
Topic: Python error no attribute '__reduce_cython__'
Replies: 5
Views: 9817

Python error no attribute '__reduce_cython__'

I have recently installed openEMS version 0.35 and verified it working with matlab input files. My system is Ubuntu 18.04 64bit I was attempting to get openEMS to run from the Python interface and I did the setup for Python. I have Python ver 3.6 My commands were: $ python3 >>> import os, tempfile >...
by montanaviking
Sat 04 Apr 2015, 09:46
Forum: Usage
Topic: Appropriate Port for photonic structure
Replies: 7
Views: 15243

Re: Appropriate Port for photonic structure

Hi Thorsten, Thanks for your quick response. I've been running like this and I'm finding that Python seems to work quite well for the postprocessing. Reading HDF5 files with Python's library is easy but does pose some hazards that can make it very slow if one's not aware of the pitfalls - as I found...
by montanaviking
Fri 03 Apr 2015, 18:29
Forum: Usage
Topic: Appropriate Port for photonic structure
Replies: 7
Views: 15243

Re: Appropriate Port for photonic structure

Hi Thorsten, I have been looking into my problem with calculating reflection coefficients and especially for non-TEM cases and apparently, the best way to approach this problem is to place it in context of the more general problem of splitting the solution into three components namely Et, Ht - the t...
by montanaviking
Mon 16 Mar 2015, 08:10
Forum: Usage
Topic: Appropriate Port for photonic structure
Replies: 7
Views: 15243

Re: Appropriate Port for photonic structure

Hi Thorsten,
I'm likely going to use SWR methods to calculate the reflected power. Will let you know how it works.
Thanks,
Phil
by montanaviking
Thu 12 Mar 2015, 07:17
Forum: Usage
Topic: Appropriate Port for photonic structure
Replies: 7
Views: 15243

Re: Appropriate Port for photonic structure

Hi Thorsten, First, I'd like to thank you for this software. I am simulating an optical frequency wave (1550nm) reflected off a metal grating and attempting to find the reflection coefficient, i.e. the fraction of power reflected of course. To better understand the problem, I simulated a "soft" plan...
by montanaviking
Fri 06 Mar 2015, 00:48
Forum: Usage
Topic: Metal optical plasmonics
Replies: 3
Views: 7143

Re: Metal optical plasmonics

Hi Thorsten, Thanks for your answers. I am still a bit confused over the units. In your AddLorentzMaterial.m file I find: % The drude type frequency dependent material: % eps_r(f) = eps_r* ( 1 - f_eps_plasma^2/(f*(f-j/t_eps_r)) ) where I believe that eps_r is the refractive index at infinite frequen...
by montanaviking
Sun 08 Feb 2015, 21:47
Forum: Usage
Topic: Metal optical plasmonics
Replies: 3
Views: 7143

Metal optical plasmonics

Hi Thorsten, I've been making extensive use of OpenEMS for integrated optics simulations and I'm wondering about the simulation of metal plasmons. I think the skin depth of Au is about 10nm or so at an optical vacuum wavelength of 650nm. I'm wondering how many cells would one have to divide the skin...
by montanaviking
Wed 17 Dec 2014, 02:13
Forum: Usage
Topic: Microstrip line port and meshing
Replies: 1
Views: 4712

Microstrip line port and meshing

Hi Thorsten, I was simulating a simple microstrip circuit consisting of a microstrip line and dual, symmetric, stub structure. I am using the mesh = DetectEdges(CSX, mesh,'2D_Metal_Edge_Res',minwavelength/200); option to give the optimum metal edge meshing. I was wondering what is the best choice fo...