I wanna calculate the Current Amplitude on a microstrip rectangular patch antenna using HFSS. As far as I know, integrating the magnetic field along a closed path encircling the patch obtains the full complex current in the patch. As it is shown in
I = integral (H.dL)
where L is a closed path, which could be a circled line or rectangle line. I is the current.
How can I calculate the Current Amplitude using HFSS?
Just take a look at the article that was attached.
Thanks in advance.
You can plot surface current distribution and observe abs(magnitude) component of the current.
Greetings.
U need to plot the surface current distribution of the patch to find the magnitude of current.
Right click on the patch --> Plot fields --> J --> magnitude of surface current --> Select the resonant frequency and plot the field.
Hope this helps you
Abhishek Sharma
But it is the problem, How?Because when I am using calculator in HFSS, and when Im pushing "integral sign" it shows me an ERROR "stack contents are incompatible"
Dear Shipra Bhatia Abhishek Sharma
Krunal Patel ;Hi, At first, thanks for your quick and respected responds.
As far as i know, when i plot j surface it just gives me a thermography picture and it shows me Max and Min of the current surface in terms of A/m in a rainbow spectrum.
You know i think, i should calculate the average of the j surface. Have you seen the attached file that i attached before? You know, At last I wanna change the size of the patches to control and get a specific current amplitude. Exactly like the excitation current that we use for phased array antenna (e.g. Taylor or Chebyshev series)
There is a sentence in 1st attached file "the field calculator is helped to
calculate the current amplitude of patch element , trying to be close to the theoretical Dolph-Chebyshev distribution" BUT HOW? Just take a look at the pic that i attached as 2nd attached file now.
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