[How to calculate quality factor] Cylindrical Dielectric Resonator
Dear all, Hi! I am a new one to use COMSOL, currently I want to simulate a simple case - cylindrical dielectric resonator (Reference: Microwave Engineering, 4th ed. David Pozar, Chap 6 Ex 6.5) : I want...
View ArticleAdding geometry, keeping mesh.. Help
Hi everyone! I am pretty new in Comsol world, so I hope you can help me.. I am currently doing some RF-simulations of the electrical field in a 3D setup with different geometries of different...
View Articlecomsol
Sir, i am facing problem in Comsol modelling. I am attaching image of model .Please help me to find the correct solution of spectral image.
View Articlesellmeier equation
could anyone please tell me sellmeier co efficient values(b1,b2.b3,c1,c2,c3) for topaz. thanks in advance.
View ArticleFinding the Inductance of a Moving Spiral Coil
Hi everyone, I am trying to simulate an out-of-plane spiral coil that expands and contracts based on the change of its temperature. The spiral coil is exposed to a radio frequency field between 10 -...
View ArticleUse PML and Infinite element domain simultaneously
Hi I use RF and Heat Transfer Physics at the same time. I use PML In the RF as the boundary, but in the Heat Transfer I have to use Infinite element domain as the boundary. Could I use PML and Infinite...
View ArticleHow to determine domain number from a given block name.
Hi I'm currently working with a project where I have to prepare a model to be illuminated in the RF module by microwawes and ultimately being able to determine the location of tumors in human tissue....
View ArticleRegarding S parameter
hello, I am working on Patch antenna,i wanted to plot S-parameter Vs frequency plot,how can i plot it. Kind regards, Sachin
View ArticleHow to define a 3D geometry given the contour function f(x, y, z)?
Hi, I am trying to build a 3D lattice shown in the "geom.png" attachment. As seen, it is a binary composite lattice, where the grey volume is filled with material A, and the rest of the volume is...
View ArticleAcoustic Band Structure in 2d
Hi Folks - Ive posted a couple of questions to some related discussion but it looks like they haven't been visited in a while so I thought I would make a new discussion group. I am interested in...
View Articlephotonic crystal fiber
Hi, I am a beginner of comsol v 4. I tried to design a pcf with hexagonal pattern of airholes (five rings). pitch=2um and d=1 um. I got real part of effective mode index but don't get any imaginary...
View Articlewireless power transmission simulation help.
I am very new in using comsol and have a little knowledge about comsol.I want to simulate wireless power system using comsol 4.3b.If someone give me some direction about how to simulate wireless power...
View ArticleHow to use the PML in the RF model
Hi Sergei I want to use PML in the RF model, but I do not know whether it is have something with the material contact with the PML. I have simulated a model that the material is air ,and the result is...
View ArticleCOMSOL Wave Optics 4.4 Help
How would you model the transmittance of light through multiple layers of material?
View ArticleHow to solve the shutdown problem due to "flmklblas.DLL"?
I was running a parametric sweep model with direct solver, and my COMSOL 4.1 keeps shutting down when it goes about 60% of the process. The windows 7 logo says the error is due to "flmklblas.DLL". Does...
View ArticleHow to solve the shutdown problem due to "flmklblas.DLL"?
Dear Ivar Kjelberg, Hi! My name is Shiyi Wang, a PhD student majored in Electro-optics. Your clear response and kind help impress me a lot when I check the solutions on the discussion forum. If...
View Articleconfinnement loss pcf fibers (pml)
hello sir can you help me how to obtain a confinnement loss of pcf fibers with comsol , how to configure the pml
View ArticleBAND GAP ANALYSIS
Hello friends, I am beginner of comsol 3.5a. I have designed Photonic Crystal Waveguide. How can i calculate the parameters. How can i do Band gap analysis. After that, i have to plot PBG diagram....
View ArticleWorkplane extrusion does not show the fields like seperate domain geometry does
Hi, I have been making my chiral structures using rectangular boxes. These were working fine and I could see fields (EM) inside of the structure as well. I then required the edges to be curved so I...
View ArticleMeshing copper on a PCB
Hi In the RF module I'm trying to do a simulation for a pcb with metal thickness of 18um. The structure is a 2-port filter. The thickness of substrate is 1.27mm. The software simulates the structure...
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