GainTotal vs dB(GainTotal) in HFSS: which approach is the most suitable for peak gain and half-power beam width?

Hi all, I am simulating a helical antenna with planar, square ground plane for 162 MHz operation in HFSS (see "helical_antenna_with_GP"). When looking at the 3D polar plot results for total gain...

16 August 2018 8,691 3 View