I found a tutorial in HFSS from which we can calculate RCS (dB) with respect to theta and iwavetheta (deg) (for both monostatic and bistatic RCS). With respect to frequency, how we can calculate ? Can any one help me ? If possible upload the HFSS file, it will be easy for me. Thank you
Dear Sreenath,
I don't know how to do it with HFSS but I can suggest analytical methods based on physical optics, you can see for example:
https://www.researchgate.net/publication/224096460_Deterministic_Approach_for_Spatial_Diversity_Analysis_of_Radar_Systems_Using_Near-Field_Radar_Cross_Section_of_a_Metallic_Plate
https://www.researchgate.net/publication/250926999_Numerical_and_experimental_analysis_of_metallic_plate_near-field_RCS_at_oblique_incidence_and_applications_to_radar_systems
I hope this can help.
Best regards
Article Deterministic Approach for Spatial Diversity Analysis of Rad...
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Dear Sreenath,
The steps to plot RCS vs Frequency:
- Set Up Radiation: Insert Far Field Setup --> Phi from 0 to 180 and Set “Step Size” to 10 degree. Also Set Theta from 0 to 360 and step size 1 degree.
- Results->Create Far Fields Report->Rectangular Plot --> Select “Monostatic RCS” and then “NormMonostaticRCSTotal”. In the Primary sweep Select Freq.
- Under Families tab select the values of Theta and Phi you want the calculation for.
Dear Sreenath,
Can you share the location of the tutorial.
Dear Naveen Kumar , I have followed the steps but I have one query. I want to plot monostatic RCS reduction with frequency and for that I have to select the 'Sweep Type' as 'Fast'. But HFSS is showing error that
"To solve fast sweeps, master/slave boundaries must use the field relation option with a phase difference that is a multiple of 180 degrees".
If we use Sweep Type as "Interpolating" or "Discrete", the we cannot draw the plot with frequency and simulator is not allowing us to select the "Fast" sweep type.
Please guide us Sir.