STK Antenna Models | External Antenna Models

IEEE 1979 Antenna Pattern

The IEEE 1979 antenna type model extends the external gain pattern data formats to use measured antenna gain data using the IEEE1979 standard.

Field Description
Design Frequency

This is the frequency of the antenna. The antenna design frequency is independent of the operational frequency of a transmitter, receiver, or radar. Changing the frequency of a transmitter, receiver, or radar does not update an embedded antenna's design frequency, nor vice versa. The design frequency is solely used at antenna configuration time to compute the antenna size from its max gain or beamwidth settings. A mismatch between signal frequency and antenna design frequency typically causes performance degradation.

External Filename

The path and name of the file that contains the antenna gain data. View a format and example of the IEEE1979 file.

Reload Reloads the antenna data from the external file.

You can specify either a rectangular coordinate system or a polar coordinate system for this antenna.