External Antenna Pattern

The frequency of the antenna.

For an embedded antenna on a receiver, transmitter or radar, this value corresponds to the Frequency entered on the Model Specs tab for the transmitter or receiver and the Transmitter Specs tab for the Radar.

For an antenna linked to a receiver, transmitter, or radar, the Antenna Design Frequency value gets overridden by the Frequency value set on the Model Specs tab for the transmitter or receiver, and the on the Transmitter Specs tab for the Radar. However, when computing the antenna's gain matrix (or a link budget, etc.) from one of the objects linking to the antenna, that other object's frequency settings override the antenna's Design Frequency setting.

The path and name of the file that contains the antenna gain data.

If you are using an External antenna file with a symmetric pattern, you have the option of specifying the order of interpolation for the M^th order Lagrange interpolation algorithm. The value may range from 1 to 7, with 1 as the default if no value is specified or if the value is out of range.

Interpolation is used to calculate points between the values specified by the user in the input file for a symmetric pattern. 2D bivariable interpolation is used for 2D gain data on a regularly spaced grid, and the order of interpolation is linear.