The k6sti nec2 program necwires now has an independentlydeveloped windows interface called winni developed by pat wintheiser, available through the unofficial nec archives. Multiple patterns can be superimposed on a single graph for comparison. Wire antenna software free antenna modeling software. You can then run multiple eznec test cases while autoez automatically changes one or more variables between runs. Nec has been around a long time though, and i dont think its going away any time soon. The big 3 in ham antenna modelling software are eznec, 4nec2 and mmanagal. With yagicad it is possible to enter a base design from scratch or use one of a number of saved well known designs. See the pattern and antenna currents on the same color 3d display as the antenna. This makes computational electromagnetics cem important to the design, and modeling of antenna, radar, satellite and other communication systems, nanophotonic devices and high speed silicon electronics, medical imaging, cellphone antenna design, among other applications.
Yagicad is a fully integrated analysis and design package primarily intended for vhf yagi aerials. Ads software is good for cases when you want to simulate and characterize your antenna design in companion whit other microwave components for example an antenna which is connected to an amplifier. As its been 7 years since ive done so, i surveyed the available software again and found eznec 5. Click here for an offsite explanation of various electromagnetic and antenna modeling techniques including the moment method. Nec2go powerful antenna modeling tool using nec 2 computing engine. Figure 1a necwin plus azimuth pattern for a dipole at 70 feet above average ground at 7. Eznec pro uses its own easytouse antenna description file system which has been proven by a large number of eznec and eznec pro users, although it is able to both read to a limited extent and write nec. Nec 4 further allows electrically small antennas to be modeled with better accuracy.
It can model a wide range of antenna types, calculate radiation patterns, power gains, fronttoback ratios, feed impedances. Most programs using nec include features that run batches of nec calculations to produce a composite. New modelling capabilities in commercial software for high. View antenna display, showing the wires making up the model of the fiveelement beam, with currents and 2d slice superimposed to show orientation.
The nec simulation model, and sample output, can be found here. This link is listed in our web site directory since sunday dec 20 1998, and till today nec win pro has been followed for a total of 31145 times. This design can then be optimised or scaled to suit particular requirements. An html version of the users manual for nec has been created by peter richeson. Eznec is a powerful but very easytouse program for modeling and analyzing nearly any kind of antenna in its actual operating environment. My problem was to get a reasonable, lowcost 4010m attic antenna in a crowded urban setting with metal surfaces everywhere.
The length of this antenna in relation to wave length is very small, in addition to this antenna have a high radiation resistance and low imaginary resistance. The numerical electromagnetics code, or nec, is a popular antenna modeling system for wire. Zplots uses excels charting capabilities to plot impedance data obtained from a variety of sources, including the w5big aim4170 antenna analyzer, the n2pk vector network analyzer, and several different antenna modeling programs. My interest in antenna modeling has always been casual, needing it when an upgrade to my antenna system was needed. The nec files may be used with any of the nec 2 or nec 4 programs such as 4nec2, gnec or cocoanec, however some of them with tapered elements may only be simulated accurately by nec 4. Having had a gem quad hf 201510m for a few years, back in the early 80s, i can testify to the quads slight advantages over a tribander yagi with the same number of elements. I remember modeling some large antenna arrays with nec on. From there it takes off at the 32 degree angle as you see in my antenna notes and model. Nec based antenna modeler and optimizer by arie voors 4nec2 is a completely free nec2, nec4 and windows based tool for creating, viewing, optimizing and checking 2d and 3d style antenna geometry structures and generate, display andor compare nearfarfield radiation patterns for both the starting and experienced antenna modeler. Apart from these there are yo, ao and also necwin plus, nec2go.
Another antenna analysis software alternative to numerical electromagnetic code nec for analyzing insulated or bare thin wire antenna structures over a lossy or perfect groundplane based on the moment method. Top 4 download periodically updates software information of antenna full versions from the publishers, but some information may be slightly outofdate using warez version, crack, warez passwords, patches, serial numbers, registration codes, key generator, pirate key, keymaker or keygen for antenna license key is illegal. Software beta testing was provided by a group of fellow amateurs. I downloaded the demo of maxwell, and am playing around with it a bit. What is the best software used for antenna design and. Yag files can be converted using the msdos based scale.
The physical design of the antenna is entered such as the lengths of wires and elements. For a given frequency, the feedpoint impedance is calculated, along with theoretical efficiency. The numerical electromagnetics code nec is a popular antenna modeling software package for wire and surface antennas. New mininec free expert mininec classic software bad link. Is there a 3d modeling link budget software for radio. From there the antenna passes through the wall to the outside, roughly 1. Obtaining radar antenna radiation model was necessary so one can later use it for calculation of radiation strength and. Mininec should not be confused with nec, which is a large antenna analysis program written in fortran and designed to run on mainframe computers. Nec24 based antenna modeler, analyzer and optimizer. Finally, it is advisable to check the references below. Nec2 specifically provide users, either those experienced with the nec2 processes, or for those who are neophytes but want to model their own antennas. As with any purely numerical methods, the accuracy is whatever you choose to make it, commensurate with processing power, of course. Much of my antenna research work is based on systematic antenna modeling in a.
Rotate the antenna display and zoom in for details. Super numerical electromagnetic code snec software and. Help file covering the use of the mininec antenna modeling program. It was originally written in fortran in the 1970s by gerald burke and andrew poggio of the lawrence livermore national laboratory. Mininec pro antenna analysis software black cat systems. One disadvantage, however, is that not all types of programs are written for the mac. How to start modeling antennas using eznec greg ordy, w8wwv ctu, contest university dayton, may 19, 2011 version 1. The resource is currently listed in in a single category. S nec software is one of a specific for antenna design and simulation. What is the best software used for antenna design and simulation. There are several professional grade programs that will do what you ask, such as mathcad there are many others and but they are expensive and may have a steep learning curve, however, you can do what you need to do using simpler and cheaper pro.
Dxf file input, 2d and 3d plots and antenna views, and graphical outputs. Mininec for windows is antenna modeling tool for the novice, student and hobbyist. M mana is an antenna analyzing tool based on the moment method introduced in mininec mini numerical electromagnetics code version 3. It is restricted to antenna elements of a single diameter although some software providers have introduced corrections for linear elements whose diameters varies. How it works the code is based on the method of moments solution of the electric field integral equation for thin wires and the magnetic field integral equation for closed, conducting surfaces. A wealth of information and tutorials on antennas by the author of the qst series a beginners guide to modeling with nec mininec pro antenna analysis software antenna analysis program for windows and macintosh computers. Aces the applied computational electromagnetics society aces is perhaps the professional focal point of advances in all forms of electromagnetics codes and related mathematical models. By following the instructions and examples provided it took only a few days. Yagi calculator is a free antenna design and analysis software for windows.
Autoez automated use of eznec autoez works in conjunction with the eznec antenna modeling program and allows you to use variables to control diverse aspects of the model. And other em electromagnetic modelling software based. Then a wire meander helix antenna with a new structure had been designed and simulated. Numerical electromagnetics code nec2 unofficial home page. Antenna modeling software and tutorials electrical. The following files and links point to nec aoyo models of various ham antennas that i have simulated andor tested over the past 30 years as an antenna designer.
The numerical electromagnetics code, or nec, is a popular antenna modeling system for wire and surface antennas. M mana is a powerful antenna modeling program that is fascinating to experiment with. Poggio wrote the necmom family of programs at lawrence. Although communication with nec 4 is largely by means of nec format files, these are not generally available except after exiting eznec pro. Mmana antenna modeling program tutorial, part 1 a stepbystep invertedcoathanger antenna mmana modeling program design example.
Details on how to construct this antenna, both as standalone and as a parabolic dish feed can be found at this link. Mininec pro is an antenna analysis program for windows and macintosh computers. Antenna software free download antenna top 4 download. Antenna descriptions and pattern plots are easily saved and recalled for future analysis. Antenna maker antenna design program for quads, yagis, inverted vees, jpoles, trap dipoles and more. View antenna display, showing the wires making up the model of the fiveelement beam, with currents.
Nec win pro antenna analysis software with the user in mind. Nec 2 nec 2 is a highly capable version of the code which is in the public domain. There is also a sample nec model that you can use to test your setup. Dec 14, 2019 eznec was developed to work on windows xp, windows vista, windows 7, windows 8 or windows 10 and is compatible with 32bit systems.
The main category is antenna analysis software that is about software, antenna analysis software, for ham radio operators and hams. The spreadsheet and dialogue box interface is similar to necwin pro. Necwin pro pop antenna analysis software with the user in mind. Concerning adding radials to my current antenna, the tuner is mounted in my crawl space against the wall. Getting settled and getting started figure 2an eznec elevation pattern for a dipole at 70 feet above average ground at 7. Click on the image to the left to see a screen shot from eznec v. The spreadsheet and dialogue box interface is similar to nec win pro, described below under nec 2. If it expires, try changing the date from the control panel and it will work again. The paper deals with the radar antenna modelling using nec win package. Antenna modeling software for the mac henry ott consultants. To download and try the software click upmost two links below on the right. There are other, non nec or mininec kernel based programs. Intel cpu is required on xp and vista systems but not on windows 7 and later.
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