Radio-Frequency Engineering Modeling Toolkit (RF-EMT)

An external optimizer for xnec2c using a genetic algorithm

Xnec2c is a high-performance multi-threaded electromagnetic simulation package to model antenna near- and far-field radiation patterns for Linux and UNIX operating systems.

A tool to reconstruct the full 3D antenna pattern using only the 2D principal cuts

Java Antenna Model library contains functionality for antenna models. Functionality such as generating antenna radiation pattern.