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NEC-Win Version Comparisions

Technical Specifications and NEC-Win version comparisions

NEC-Win BASIC is an Antenna Computer Modeling program that is designed for a wide range of users. Beginners can model antennas immediately by following the examples included in the user friendly manual. By working throught the examples, users unfamiliar with NEC will be exposed to all of NEC-Win Basics capabilities. Within a matter of minutes, novices will be able to create complex antenna structures, analyze radiation patterns, and create three-dimensional views of the results. For experienced NEC users, NEC-Win Basic is a dream come true. With a few simple point and clicks experienced users will immediately create complex structures for analysis. Are you tired of sorting through cumbersome output files from NEC2 ?  With NEC-Win Basic and the push of a button, output files are purged and the sought after information is displayed on the screen. What is the correct format for an RP (radiation pattern) card or a TL (transmission line) card ?

Let NEC-Win Basic do it for you! The graphical interface allows most operations to be performed with a couple of clicks on the mouse button. But NEC-Win Basic is much more than just a NEC interface shell it is a powerful graphics application. The ability to display, print, copy, even save as a bitmap single or multiple antenna gain patterns is one of the many graphics features supported in NEC-Win Basic. But even better than elevation and azimuth plots is the ability to view the 3-dimensional surface pattern of the antenna. With the 3-D pattern displayed the surface pattern can be rotated 360 degrees on any axis or translated or zoomed allowing complete visualization of the pattern. If it looks nice on the screen then go ahead and print it. Full color support is available for all printouts so now graphs not only look nicer but are easier to read.

What is the Frequency Limitation of NEC ?

There is no limit on the frequency range, although NEC is usually not used for frequencies above 2 GHZ. NEC is dependent on the structure geometry, not the frequency. If the structure can be modeled following the NEC guidelines, than the appropiate frequency can be used.

Descriptions, Screenshots, Features and Operations

Pattern Plot Analysis

Surface Patterns

Polar Plots

Sources and Loads

Frequency, Transmission Lines, Networks

Ground Selection

NEC-Win Basic includes the following features

By combining the NEC2 engine with Microsoft Windows, antennas can now be modeled accurately and easily. With NEC-Win Basic the user has the ability to analyze antennas while running other Windows applications such as word processors, spreadsheets or even while you are logged onto the Internet. This multi-tasking capability allows easy cut, copy, and paste operations between NEC-Win Basic and other applications. Also, there is no need to worry about hardware compatibility since NEC-Win Basic uses the Windows graphics and printer drivers.

NEC-Win Basic is composed of three parts NEC-Vu, NEC-Plot, and NEC-Geometry.
NEC-Geometry is where the antenna is built. The coordinates of the wire are entered along with specific data concerning frequencies and ground parameters.

The following features are included

	Transmission Lines
	Linear or multiplicative Frequency Sweeps
	Networks
	Predefined or define your own Wire Conductivity & Gauge
	Translate/Rotate/Scale Antennas
	Predefined or define your own Grounds Constants
	Series/Parallel RLC or complex loads
	Sommerfeld Ground
	Voltage/Current Sources
	Linear/Radial Cliff or Radial Wire Screen Grounds
	Tabular Data for VSWR and Input Impedance

What is Numerical Electromagnetics Code (NEC)?

The Numerical Electromagnetics Code (NEC) is an outgrowth of a program developed in the 1970s, called the Antenna Modeling Program (AMP). There are at least 4 versions of NEC, with NEC-2 emerging in 1981 and NEC-4 appearing in 1992. NEC-2 is the highest version of the code under public domain. NEC-4 remains proprietary with the Lawrence Livermore National Laboratory and the University of California. It requires a separate license for use.NEC in all its forms is a computer code for the analysis of the electromagnetic response of antennas and other metal structures that uses method-of-moments techniques for the numerical solution to integral equations for the currents induced on an antenna structure by sources or incident fields. The approach has no theoretical limit and may be used for very large arrays or for the very fine subdivision of smaller arrays. The NEC-Win products contain enhanced versions of all NEC cores.

NEC-Win Basic V1.1 Package includes a printed User Manual and Program Disk

 Price: 75 EUR