How is it possible to change the excitations without risimulating ?
I've got the following problem.
In the design of a quadrifilar helix antenna i'm using a single voltage source to feed each helix arm. So I've 4 voltage sources. By changing the phase of each source I can control the pattern characteristics.
At the moment when a change the phase shifts I ri-simulate the whole project, probably this is useless, and I could save time.
On the other hand since i'm interested in considering two control phase sets (one for RHCP and one for LHCP),i'm using two files, with the same geometry but different excitation phases.
Please, can someone suggest me how to avoid risimulation and how would be possible to get the results for the two sets of control phases in the same project?
Thank you
Regards
Claudio
Answers
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I've solved. I have used two standard configurations, one for RHCP and one for LHCP, and I've specified the sources for each configuration.
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Yes, to solve the two files with LHCP/RHCP you would need multiple configurations.
The video in the Altair Community (image below) will further explain multiple configurations.Regarding changing the phase of the ports, you are correct - this will trigger a new solution. To avoid this, you could use the multiport script. In the attached files I have solved the quad helix from the CADFEKO component library using arbitrary phasing of -180, -105, +10, and +95 degrees on the 4 ports. I then used the multiport script and applied the same phasing and got identical results.
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