Quantcast
Channel: RF Module - Latest Discussions - COMSOL Forums
Browsing all 2018 articles
Browse latest View live
↧

Patch antenna Return loss calcultion

How can i plot return loss curve in COMSOL?

View Article


coupling of two physics

Hi guys My simulation has two physics in it. The second physics is piezoelectric and I am trying to apply the line integral of the dependent variable from the first physics as the input to the Voltage...

View Article


infinite integral to calculate trapping potential

hi, I am calculating trapping potential by optical trapping integral. In my model, the focused light is incident into sharp gold substrate, thus the huge enhanced electric field causes the optical...

View Article

Reflection Calculation in Scatterer on Substrate Example

Hi all, I am doing a simulation similar to the scatterer on substrate example. My substrate I Si and my scatterer is Ga in frequency range of between 480 THz and 880 THz. I would like to calculate...

View Article

basic electromagnetics question

Hi everyone In one of my simulations I need to find the electric potential (voltage) on a flat metal surface (negligible thickness) under a normal incident em-wave. The em-wave is polarized in the x...

View Article


Optical trapping potential

hi, I am calculating trapping potential by optical trapping integral. In my model, the focused light is incident into sharp gold substrate, thus the huge enhanced electric field causes the optical...

View Article

(Solved) unable to put 3d patch antenna on top of 3d substrate with ground plane

Hi Guys, A few weeks ago i posted a topic similar to this one where I couldnt find out how to simulate a 3D patch antenna "on top" of a 3D substrate having a different material than its substrate,...

View Article

S-Parameter of 1-Port Network

Hi at all, I need a first advice how to define a one-port network in Comsol to simulate the reflection coefficient S11. Consider a thin film resistor (or micro strip) on a substrate. Both ends are...

View Article


Draw line on point graph

I'm new to comsol and I'm currently processing the data that I have received from a 2D cut point. However, I'm having some trouble trying to add a line that connects each point on the point graph that...

View Article


PML Boundary Implenation Problem To Calculate Reflection

Hi, I am trying to simulate a 2D structure composed of Air and a substrate (n = 17/3). Bothe materials are semiinfinite. The propagation direction is y. I use scattered field formalism as solve for. My...

View Article

Help: PML Scaling Factor and Implemantation In RF Module

Dear All, Can somebody tell me what is PML scaling factor and curvature parameter in PML of RF 4.4? I am going to sweep a large frequency range 4.8e14-8.8e14 in my simulation. The structure is easy....

View Article

Maxwell stress tensor integration

Hi everyone! I'm still trying to compare the electrostatic force calculated by the expression (F=0.5*epsilon*V^2*A/g^2) with the result coming by Maxwell stress tensor in COMSOL. I used the suggestion...

View Article

Periodic Boundary Settings in RF Module

Hi, I do not know how I should do setting for k vector of Floquet periodicity. What is KF in user defined menu tab of "k vector for Floquet periodicity"? Does it show the direction of periodicity? Let...

View Article


Does Somebody have experience in PML for Electromagnetic?

Hi, Please let me know if you guys already worked with PML in RF module. I am doing a very simple structure but I can not implement PML for a long time. Thanks, Mohammad

View Article

Scattered field problems with oblique incident plane waves

Hi I need to simulate a square array of nanoparticles placed on top of a substrate and illuminated by a non normally impinging plane wave. The problem should be solved in a straightforward way in...

View Article


Directional Coupler

I am trying to model a directional coupler in 2D. I get the following error Undefined value found. - Detail: Undefined value found in the equation residual vector. There are 1 degrees of freedom giving...

View Article

Waht is Background Electric Field?

Hi Guys, I can not understand the meaning of background electric field. In scattered field solution, one has to specify background electric field. What does it mean? What is the difference between Full...

View Article


Time Complexity of Comsol for Cluster Computing and Queue jobs

Dear All, Does anybody know, what time complexity, Comsol have? About time complexity I would like to say that: let say you have a model with n1 elements. It takes t1 seconds to run. If you use 1000*n1...

View Article

In transient time domain analysis, is there any way to visualize 2D E-field...

Dear Friends, Your comments regarding my concern is highly appreciated. Please take a look. My concern is: In transient time domain analysis, is there any way to visualize 2D E-field of a selected...

View Article

Singular Matrix, Void Equations, Scatterer on Substrate

Hi, I am trying to simulate 'scattering on substrate' example in RF module. My model is a little bit modified. It is so simple 3D structure, just air and Si. My study node has two steps. The first step...

View Article
Browsing all 2018 articles
Browse latest View live


<script src="https://jsc.adskeeper.com/r/s/rssing.com.1596347.js" async> </script>