How extract s-parameters in EditFeko
Hello,
I have an array of receiver/transmitter antenna point located on the same plane.(our antenna are modeled with just point source). I have a simple object in front of my array. I wish to perform synthetic aperture radar imaging. So, I want to transmit signal to the image in transmitters' locations and receive reflected waves and calculate s-parameters from transmitters to receivers. at first I thought I have to receive scattered electrical field. my code is something like this:
** source
!! for #iT=0 to 15
!! for #iR=0 to 87
A5: 0 : : : : : 1 : 0 : #Tx[#iT] : #Ty[#iT] : 15 : 180 : 0 ** ElectricPoint1
** #Tx[#iT] : #Ty[#iT] are "x" and "y" coordinates of transmitters
** StandardConfiguration1
NC: StandardConfiguration1
DA: 0 : 0 : 0 : 0 : 0 : 1 : : : 2
** Near field: NearField1
DA: 3 : 2 : 2 : 2 : 0 : 1 : : 0 : 2
OF: 1 : 0 : : : : 0 : 0 : 0 : 0 : 0 : 0
FE: -3 : 1 : 1 : 1 : 0 : #Rx[#iR] : #Ry[#iR] : 15 : 0 : 0 : 0 ** NearField1
** #Rx[#iR] : #Ry[#iR] are "x" and "y" coordinates of receivers
!!next
!!next
** source
But when I watched this video:
(1) Synthetic Aperture Radar Imaging using Back-projection - HFSS and MATLAB code - YouTube
I changed my mind about it and decided to extract s-parameters. I do not know how to do it. at first, I ran this code:
** source
!! for #iT=0 to 0
!! for #iR=0 to 87
A5: 0 : : : : : 1 : 0 : #Tx[#iT] : #Ty[#iT] : 15 : 180 : 0 ** ElectricPoint1
L2: -1 : : : 0 : 0 : 50 : 0 : #Tx[#iT] : #Ty[#iT] : 15 : : : 0 ** source
LT: 0 : : : source : 0 : 50 ** source
** StandardConfiguration1
NC: StandardConfiguration1
DA: 0 : 0 : 0 : 0 : 0 : 1 : : : 2
L2: -1 : : : 0 : 0 : 50 : 0 : #Rx[#iR] : #Ry[#iR] : 15 : : : 0 ** sink
LT: 0 : : : sink : 0 : 50 ** sink
** Near field: NearField1
DA: 3 : 2 : 2 : 2 : 0 : 1 : : 0 : 2
OF: 1 : 0 : : : : 0 : 0 : 0 : 0 : 0 : 0
FE: -3 : 1 : 1 : 1 : 0 : #Rx[#iR] : #Ry[#iR] : 15 : 0 : 0 : 0 ** NearField1
SP: 1 : 0
!!next
!!next
But It results in the following error:
ERROR 17: Undefined wire port node/connection point
Answers
-
Hi,
Good to hear from you.
It will be easy to perform this kind of simulations using CADFEKO (rather than the EDITFEKO) and request the S- Parameter configuration from the request tab.
Here is the screenshot to request the s-parameter configuration.
In the same way, You can request the S-Parameters request from EDITFEKO.
I am sharing the example files for your reference which is having the s-parameter request (Both in CADFEKO & EDITFEKO).
You can use lua scripting or Altair compose software to write the script for Synthetic Aperture Radar Imaging.
Thanks!
Regards,
Raja.1 -
Raja Devata said:
Hi,
Good to hear from you.
It will be easy to perform this kind of simulations using CADFEKO (rather than the EDITFEKO) and request the S- Parameter configuration from the request tab.
Here is the screenshot to request the s-parameter configuration.
In the same way, You can request the S-Parameters request from EDITFEKO.
I am sharing the example files for your reference which is having the s-parameter request (Both in CADFEKO & EDITFEKO).
You can use lua scripting or Altair compose software to write the script for Synthetic Aperture Radar Imaging.
Thanks!
Regards,
Raja.I am attaching the files. Please go through them.
Thanks!
Regards,
Raja
1 -
Raja Devata said:
I am attaching the files. Please go through them.
Thanks!
Regards,
Raja
hello @Raja Devata ,
Thank you for your helpful answer. But I think there is a problem with ".cfx" file. Because it results in the following error:
Error 17604: an error has occured while opening the project. Please check error message window.
There was no "message window" to bring the content here. can you please post it here? because I can not run ".pre" file without that.
Thank you so much0
Altair Employee