Electronics

Electronics

Planar Antenna Sims

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    • vinay91
      Subscriber
      Hello,nI have some planar antennas on an IC substrate and would like to look at the radiated power broadside (into air) vs that which is sent into the substrate and radiates out the back. I tried using two infinite sphere radiation boundaries - one covering the upper hemisphere, and one covering the lower hemisphere. (My antenna feed is at 0,0,0 and suspended on a substrate that extends in the -z direction).nThe first hemisphere extends from phi:-180 to 180, theta:0 to 90nThe second hemisphere extends from phi:-180 to 180, theta:90 to 180nI have a PML boundary around the entire antenna.nI get exactly the same values of all the antenna parameters (except front to back ratio) for both cases. Should this method be working? If not, what other methods would? I am yet to try integrating the Poynting vector across the hemisphere. Also, what surface would I need to use to do this integration?n
    • Praneeth
      Ansys Employee
      Hi,nWe need more information to serve you better regarding your query. Please share images of your antenna model along with the co-ordinate systems by using the insert image option provided. nAll the best,n
    • vinay91
      Subscriber
      I am attempting to simulate a folded slot. Below, find attached the E field, extending more into the substrate than air as expected. I am looking to calculate the rad eff only in the broadside direction, in terms of what is radiated into air vs the substrate. nn
    • Praneeth
      Ansys Employee
      Hi,nThank you for sharing the details and appreciate your patience. Kindly share them in the following format:nLabel different objects in the geometry and make sure none of the object is hidden,nSuperimpose the radiation pattern on to the geometry.nThis will help to understand your query more effectively.nAll the best.nBest Regards,n
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