Query regarding Station Beams

[parphyam]

Hi, This is not an issue, rather a query. In the telescope settings, there is an option set_station_type wherein the type of station beam can be set. I want to know that if this is set to "Array”, what exactly is the primary beam function which is used? I understand that giving "Gaussian" gives a time invariant Gaussian beam for each station, but what is the functional form for "Array"? Also, if, suppose, I want to use a primary beam modelled as, say a 3rd order polynomial, is there a way to incorporate that into the OSKAR during simulation?