How to Adjust the Radiation Pattern Reference Point for Better Visualization

Understanding the Radiation Pattern Center

In far-field analysis, an antenna system is effectively reduced to a single point at the origin (0,0,0). While the standard practice of superimposing the 3D radiation pattern on the antenna structure helps visualize directional characteristics, it’s important to note that:

• Phase Shift Effect: Moving the radiation pattern origin only introduces a phase shift in complex field values.
• Observables Unaffected: Field magnitudes, directivity, gain, etc. remain unchanged.
• Visualization Purpose: Origin selection is purely for interpretation convenience.

Adjusting the Phase Center in AN-SOF

To optimize your radiation pattern visualization:

1. Navigate to: Setup tab > Far-Field panel > Origin
2. Set the desired reference point coordinates (X0, Y0, Z0)

Key Benefit:

• Aligns the pattern display with your preferred viewing perspective
• Maintains all critical antenna metrics

For complete far-field parameter descriptions, see: Far Field Parameters.