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# Cst Measurements

15 Threads found on edaboard.com: Cst Measurements

## Coaxial waveguide design

Is there anyone who had designed a coaxial waveguide using cst and extracted the cutoff frequencies? I would like to test an absorbing material using coaxial waveguide measurements but at firs i want to simulate the model of coaxial waveguide and test the MUT(material under test) inside it, but i get some errors in the feeding port and consequentl

## [moved] Axial Ratio Measurements and frequency curve

Referencing previous thread: if u knw how to plot axial ratio vs frequency curve in cst plzz tell me. i am working on circularly polarized antenna bt unable to find the graph between axial ratio and frequency in cst 2010. can u plz help me???????

## How to export E-Field results automaticly from CST Studio Suite?

I need to measure the E-Field and Voltage of Lumped Elements at some points. Therefore, I have used Probe for measuring the aforementioned quantities at the respective points. However, I don?t know how to write a VBA or MATLAB code for exporting the Probe measurements (E-Field) from cst environment. I was wondering if anyone could help me?

## difference between measurements and simulation of my antenna

hey , im simulating a Helix antenna but i have some Problems the Simulation with cst dont fit the measurements i made . i uploaded some results and some pics . will be happy about any help thx

## Planar near-field data from antenna in CST MWS 2014

Hi, I've set up a pyramidal horn in cst MWS 2014 with the following properties: Directivity: ~20dBi Design frequency: 10 GHz Waveguide measurements is standard EIA WR-90 x-band. I've simulated this with a E-field monitor and a farfield monitor and the plots for the farfield has good agreement with what was expected from the analysis

## Differential CPW Problem (CST MICROWAVE)

Dear All, I have imported a Differential trace into cst MWS, and I am using "Time Domain Solver" to get S-parameters and TDR measurements; the Problem is that we are getting wrong results.. we have used Polar software and the impedance is 100 Ohm differential.. but the TDR in cst MWS show a 3 Ohm impedance. I am new to (...)

## Toroidal inductor modelling up to 100MHz using CST studio

Hello, my specialization is EMC/EMI filters. Therefore I'm trying to model common mode choke. I'm using cst MWS to extract parasitics of inductor. In figure are represented only one coil on toroidal ferrite. Simple model to compare with real measurements. The problem is using frequency domain solver-> meshed tetrahedrons>500,000 and very lon

## How to simulate the model of a human skin in HFSS or MWS CST?

Hello, has some books, papers or information how I can model/simulate the human skin in an electromagnetic simulation program like HFSS or MWS cst?

## CST MWS or HFSS for planar structure..

according to my experience HFSS is better in speed than cst MWS when simulating planar structures. I agree. I use HFSS and I am getting pretty good results compared to measurements for planar antennas. I think cst/SEMCAD is better when your structure is electrically large since FDTD (cst,SEMCAD) does not require a

## Urgent CST EM studio-conductance measurements

hello, did anyone have some ideea how cst EM studio works? I have a tube of pet, 2cm thickness filled with water. I need 2 electrodes in order to evaluate the conductance of the water. The working frequency is 100kHz, so this is the reason for which I am trying to use cst EM studio. did anyone have some ideas how to feed this electrodes and what

## Urgent CST EM studio-conductance measurements

hello, did anyone have some ideea how cst EM studio works? I have a tube of pet, 2cm thickness filled with water. I need 2 electrodes in order to evaluate the conductance of the water. The working frequency is 100kHz, so this is the reason for which I am trying to use cst EM studio. did anyone have some ideas how to feed this electrodes and what

## How to feed the structure of spiral antenna in HFSS

Hi, I have simulated and build lots of spiral antennas for my thesis. I used cst but always simulated with a lumped port. The results were pretty good and almost equal to the measurements. ciao

## Problem with calculating the transmission line parameters in CST

Discrepancies between cst and actual measurements can be caused due to these common issues: - Way you excite the structure. For microstrip line excitation use a plane wave - Meshing can be also crucial, examine your structure carefully - Define material (dielectrics, metals etc.) properties in detail, considering losses etc. - Boundary condit

## [CST]Lower edge frequency of a UWB antenna

i tried to recover the result of one paper using cst in order to do some further work and my focus is the impedance bandwidth of the UWB monopole antenna. Generally the simulation results is acceptable, while the only inconsistancy with the measured result provided in the paper is the lower edge frequency. In my simulation, it is about 1.98GHz, a

## Basics: Phase center of antenna.

hello, phase center simulation with cst mws is easy. in the properties window of radiation pattern there is a tap where you can activate to calculate phase center. more info can be found in the cst mws help docs as for measurements, i think that a good basic book about antennas mentions some details about this. there are more (...)