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Question about corner cuts for a circular polarization of Patch antenna

- November 10, 2024 at 2:17 pm
  
  Kristiyan Petkov
  Subscriber
  
  Hello everyone, I am new to HFSS and would like to ask the following:
  When designing a rectangular patch antenna and cutting the corners to make it circularly polarized, what methods or functions do you use to perform the cutting? Additionally, is there an analytic expression to know approximately how much to cut on each side to get the circular polarization?
- November 11, 2024 at 3:48 am
  
  kkong
  Ansys Employee
  
  Hi, Kristiyan
  The GPS Patch antenna from the Antenna Toolkit in HFSS is a good reference.
  The models created with the toolkit are treated as variables, so you can see how to cut corners.
- November 12, 2024 at 10:33 am
  
  Kristiyan Petkov
  Subscriber
  
  Thank you for the response! Is there a rule of thumb or formula for calculating the dimensions of the cut?

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