4nec2

Especially designed for antenna modelers, 4nec2 is a simple tool for designing, optimizing and verifying 2D or 3D geometry structures.

4nec2 is easy to use and comes with a basic 3D editor to help novices create antenna models, compare field patterns, generate SWR charts and learn in the process. However, it also features options designed to meet the requirements of more advanced users, such as the genetic algorithm based optimizers.

The interface looks rather crowded, but it provides fast access to all the options. It displays detailed information about the antenna parameters, such as the voltage, frequency, wavelength, impedance, the number of series and parallel components, input power, structure and network loss and the calculated efficiency.

The geometry editor provides real-time rendering of the model, displaying a 3D graphical representation of the model and enabling you to rotate it freely, zoom in and out, determine segment lengths or view the wire load.

Auto-segmentation, frequency sweeps. step-radius conversion, adjustable input power, memory usage options, customizable unit types are other features that this application comes with. It can calculate area-plot and point plot data and display it on the screen.

The built-in geometry builder enables you to set the configuration parameters (radius, angles, rotation, length etc.) in order to generate patches, boxes, cylinders, parabolas, helices or spheres. The application can evaluate the model and optimize the antenna and other variables, such as the resonance, efficiency, SWR or the F/B and F/R-ratios.

4nec2 is capable of running up to 11000 wires and/or segments and features a powerful real-time 3D geometry and pattern viewer. It is suitable for both experienced and beginner antenna modelers, providing all the necessary tools for designing fully-functional designs.