Creating EZNEC / NEC Model Files

Date: 2026-01-12

• Define geometry: wire endpoints, diameter, and segmentation count.
• Use at least 20 segments per half-wave; keep segment length <= 0.05 lambda.
• Specify ground type: free space, perfect ground, or real ground.
• Add excitation: voltage source at the feed segment (end or center).
• Set frequency sweep and output requests (gain, impedance, current).
• Run the model and inspect current distribution for anomalies.
• Adjust segmentation if currents show sharp discontinuities.
• Save the file in .EZ or .NEC format with comments for revisions.