Magnetic shielding
How to simulate magnetic flux density in and around the magnetic shielding?
View ArticleS21, RF attenuation between two cross-sections
Hello, I am trying to simulate a circular wave guide below cut-off to be used as an attenuator. I started with just a cylinder whose boundaries were PECs and each end defined as a port. The S21...
View ArticleStudy1 is sweep of the wavelength and the consequence is used in Study 2, but...
Hello all ! I'm puzzled that how to calculate the EQE of the solar cell , I used the light(rf module) to calculate the G (sweep of the wavelength) and electrostatics1 to calculate the phi0; two...
View ArticleSimulating chiral media
Hi, I am trying to simulate chiral media as explained in "alphard.ethz.ch/hafner/Workshop/Comsol2009.pdf". My understanding of adding the chiral expression for the electric displacement is that I add a...
View ArticleOverride and Contribution (boundaries) - Solid Mechanics
Hi! I just started my first project on COMSOL! pretty excited! I have a problem, that I can't seem to solve. With Solid mechanics physics, I can't make the default Free 1 with an added boundary mass to...
View ArticleElectric Field from a point source
Hi, I am new to COMSOL. I want to model a point source from which Electric Field spreads out in x,y directions. I am working in 2D plane. I started of by creating a geometry with air, and then...
View ArticleCalculation of far field scattering pattern
Hello everyone.... I have a doubt regarding calculation of scattering pattern in far field domain. I have simulated a model which gives the scattering pattern of nano sphere. But i want to calculate...
View ArticleScattering problems, background field
Hi! Does anyone know how to define background filed ( in Ewfd, solve for scattered field) as an interpolated function from Comsol?
View ArticleHow to plot the electric field of circular polarized light?
Hello I simulate a meta-surface model when a circular polarized light is normal incident, the polarization state of transmitted light is circular polarized too, and how can I plot the transmitted...
View ArticlePeriodic boundary conditions, birefrigence
Hi everyone, I`m modelling anisotropic medium and birefrigence in it. Can someone help me with periodic conditions on the sides of my cell? I used floquet periodic conditions, but since I have 2...
View Articleboundary selection in emw
Can any one tell me why the boundaries shown in the attached image are not getting selected in emw physics I have also attached the .mph file.
View ArticleHow can I find the fundamental mode of PCF (photonic crystal fiber)?
Hi, I'm facing a problem in finding the fundamental mode of PCF (photonic crystal fiber). For step index fibers, the fundamental mode can be easily found by setting "search for modes around" higher...
View ArticleAbout the Comsol with Matlab
Hi, everyone When I am trying to plot a function, and an error is occurred : Failure loading MATLAB libraries. This model requires that MATLAB is available. - File: csmatlab.dll - Function: Sigma_G. I...
View ArticleWhat kind of boundary condition should be applied to the edge of PML region?
Hi, I'm trying to calculate confinement loss of optical fibers. What kind of boundary condition should be applied to the edge of PML region (the red line in the figure attached)?
View ArticleNo "Solution store" in my model.
There is a "Solution store" in the case library. But when I created a model step by step just like the case library said, under "Study 1" there was only "Solution 1". From the case library's microwave...
View Articlemodels.rf.uhf_wireless_power_transfer
I am doing the wireless power transfer model using the models.rf.uhf_wireless_power_transfer.pdf, I am facing the problem in executing the steps given in the manual. I have attached the screen shot of...
View ArticleI want to implement chiral media (bi-anisotropic media) by Comsol..
HI everyone ! I have a hard time to implement chiral media by using RF module... I want to fallow the way that explained in OEX paper " Eigen oscillations of a chiral sphere and their influence on...
View ArticleReduce Degree of Freedom antenna array
Hello, I am using RF module and have a created a model of antenna array, with which I would like to observe scattering of EM waves when penetrating dielectric material (permittivity 50-70) The antenna...
View Articleincident plane wave configuration
Dear all, I'm trying to figure out electromagnetic model of QWIP. I have used scattering bounday conditions and applied Ex=Ez=377 incident electric field. Field polarization direction is y-direction....
View Articlesimulating a solar cell
Helo I am a new user and I have a question, any body knows how to get the Absorption and the Absorption Enhancement when simulating a thin solar cell? Thanks in advance
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