Menu

Discussion Forum

New Discussion
查找

Discussion ClosedThis discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one,click here.

How to calculate the power of a terminal in frequency domain study

Posted 2023年9月27日 GMT+2 10:47MEMS & Piezoelectric Devices, Results & Visualization, Studies & SolversVersion 6.12 Replies

Yunlong Su
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

I am following the saw gas sensor example. When try to calculate S parameter, we need to fix the input power of the terminal and then perform a frequency domain study. I try to calculate the power from the terminal current and voltage by the equation for average AC power. But the result are not equal to the value I set to the terminal and it looks similar to the S parameter. Does my calculation give the output power? And How comsol apply the fixed power to the terminal in terms of the boundary conditions ?

2 Replies Last Post 2023年10月7日 GMT+2 03:50
Dennis Brown
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 11 months ago 2023年9月29日 GMT+2 19:07
Updated: 11 months ago 2023年9月29日 GMT+2 19:07

Hello

Are you referring to this example?

https://www.comsol.com/model/surface-acoustic-wave-gas-sensor-2129

It does not use s-parameters so I am curious what you changed or are doing? It uses electrostatics, at least that is what i see in the file. I cannot simulate the file as I don't have the mems module but I can see the setup.

What equation are you using to calculate AC power?

Hello Are you referring to this example? https://www.comsol.com/model/surface-acoustic-wave-gas-sensor-2129 It does not use s-parameters so I am curious what you changed or are doing? It uses electrostatics, at least that is what i see in the file. I cannot simulate the file as I don't have the mems module but I can see the setup. What equation are you using to calculate AC power?
Yunlong Su
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 11 months ago 2023年10月7日 GMT+2 03:50
Updated: 11 months ago 2023年10月10日 GMT+2 03:34

Hello

Are you referring to this example?

https://www.comsol.com/model/surface-acoustic-wave-gas-sensor-2129

It does not use s-parameters so I am curious what you changed or are doing? It uses electrostatics, at least that is what i see in the file. I cannot simulate the file as I don't have the mems module but I can see the setup.

What equation are you using to calculate AC power?

Yes, it is the example. I was following the steps of the veido from the linkhttps://www.youtube.com/watch?v=FqL6NXh6kZY. I plotted the s-parameters by setting a terminal boundary with fixed power in electrostatics and performing frequency domain study.

>Hello > >Are you referring to this example? > >https://www.comsol.com/model/surface-acoustic-wave-gas-sensor-2129 > >It does not use s-parameters so I am curious what you changed or are doing? It uses electrostatics, at least that is what i see in the file. I cannot simulate the file as I don't have the mems module but I can see the setup. > >What equation are you using to calculate AC power? Yes, it is the example. I was following the steps of the veido from the link [https://www.youtube.com/watch?v=FqL6NXh6kZY](https://www.youtube.com/watch?v=FqL6NXh6kZY). I plotted the s-parameters by setting a terminal boundary with fixed power in electrostatics and performing frequency domain study.

Note that while COMSOL employees may participate in the discussion forum, COMSOL®software users who are on-subscription should submit their questions via theSupport Centerfor a more comprehensive response from the Technical Support team.

Suggested Content

Baidu
map