Menu

Discussion Forum

New Discussion
查找

Discussion Closed This 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 plot gain and axial ratio in frequency?

Posted 2022年7月29日 GMT+8 12:24 RF & Microwave Engineering, Results & Visualization Version 6.0 3 Replies

Noki Lee
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

'Gain' is defined on angles, however many papers show gain in frequency. Same for other antenna parameters such as 'axial ratio'.

I couldn't find an example in application libraries that COMSOL supports. Are there any fast ways to plot the spatial dependent antenna parameters in frequency?

I attached an example figure.

Attachments:

3 Replies Last Post 2022年8月1日 GMT+8 06:53
Robert Koslover Certified Consultant
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 3 years ago 2022年7月30日 GMT+8 21:37
Updated: 3 years ago 2022年7月30日 GMT+8 21:37

Pick a point (or define a cut point) in your model that is physically along the direction (from the origin) of the peak gain. Then define a 1D point plot, at that point, where you evaluate the gain and/or the axial ratio vs. frequency.

-------------------
Scientific Applications & Research Associates (SARA) Inc.
www.comsol.com/partners-consultants/certified-consultants/sara
Pick a point (or define a cut point) in your model that is physically along the direction (from the origin) of the peak gain. Then define a 1D point plot, at that point, where you evaluate the gain and/or the axial ratio vs. frequency.
Noki Lee
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 3 years ago 2022年8月1日 GMT+8 02:30
Updated: 3 years ago 2022年8月1日 GMT+8 02:30

Pick a point (or define a cut point) in your model that is physically along the direction (from the origin) of the peak gain. Then define a 1D point plot, at that point, where you evaluate the gain and/or the axial ratio vs. frequency.

Then, does the picked point depend on users' purpose that they wish to plot?

>Pick a point (or define a cut point) in your model that is physically along the direction (from the origin) of the peak gain. Then define a 1D point plot, at that point, where you evaluate the gain and/or the axial ratio vs. frequency. Then, does the picked point depend on users' purpose that they wish to plot?
Robert Koslover Certified Consultant
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 3 years ago 2022年8月1日 GMT+8 06:53

If your purpose is to plot the gain in the direction of the peak value of the gain, or to plot the axial ratio in the direction of the peak value of the gain, then choose an evaluation point along the direction of the peak value of the gain. If you want to know either of those quantities in some other direction, then choose a point along that other direction.

-------------------
Scientific Applications & Research Associates (SARA) Inc.
www.comsol.com/partners-consultants/certified-consultants/sara
If your purpose is to plot the gain in the direction of the peak value of the gain, or to plot the axial ratio in the direction of the peak value of the gain, then choose an evaluation point along the direction of the peak value of the gain. If you want to know either of those quantities in some *other* direction, then choose a point along that *other* direction.

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

Suggested Content