Listed under the softwareantenna analysis category that is. While nec2 is quite versatile, the output of nec2 is voluminous and difficult to read. If you need to simulate hf yagi antennas or other antennas with tapered elementswires, you must use nec4 version 4. It is name after havana cubas arnie coro, since he came up with it over 20 years ago. Eznec a well known commercialbased antenna modeling package based on nec3 and nec4. This enables us to accurately include the influence of the boom, insulators, baluns, feed point, connectors. Analysis of thinwire structures in the presence of finite ground.
Details on how to construct this antenna, both as standalone and as a parabolic dish feed can be found at this link. Nec develops one of the worlds smallest antennas using. Aug 08, 2016 san diegobased antenna maker airgain pending. Nec aims to help solve a wide range of challenging issues and to create new social value for the changing world of tomorrow. Wolf broadband nvis antenna the complete wolf system with optional push up mast can be erected in less than 10 minutes. Intel cpu is required on xp and vista systems but not on windows 7 and later. The numerical electromagnetics code, or nec, is a popular antenna modeling system for wire. The code is based on the method of moments solution of the electric field integral equation. Flat panel antennas 3,4,and 5 ghz bands radiowaves. Ac6la antenna utilities a collection of commercial antenna utilities. Moravian falls, nc 28654 united states of america 828 7386445. To download and try the software click upmost two links below on the right. Ipo approaches companies, entrepreneurs and investors who have the expertise and resources to bring a technology to market.
Antenna modeling used to be the domain of scientists and engineers with very expensive antenna ranges covering acres and acres of land strewn with expensive equipment. We perform the design work using the latest professional full3d electromagnetic modelling software. This antenna is based on the classic force 12 design and optimized with a single transmission line feed system. Founded in 1998, the company was acquired by pegasystems in 20. The nec simulation model, and sample output, can be found here. How to produce a nec antenna file and what software to use. Nec4win nec4win vm a windows xp, vista simulation program based on mininec 3. Nec24 based antenna modeler, analyzer and optimizer. Kindle for android tablets kindle for iphone kindle for ipod touch kindle for ipad. A novel methodology for antenna design and optimization arxiv. Wlan antenna simulation with nec2 will save you countless hours of cut and try in the lab. Solder a 50 ohm resisitor on one end, connecting the center and the braid. Nec numerical electromagnetic code, written by gerald burke, is a popular antenna modeling code for wire and surface antennas and scatterers. Includes nec2 and supports nec4 with separate license.
Preparing the input data file describing the antenna geometry is very simple. At january 2016 the ict home server for employees is closed, the service will not be continued. With the proliferation of personal computers and affordable even free software, antenna modeling has become a. This link is listed in our web site directory since sunday dec 20 1998, and till today necwin pro has been followed for a total of 31145 times. Learn about working at antenna software now part of pegasystems. Take a 45 ft15 meter 52 ohm coax, or multiples up or down. The 216cp features a singlepoint feed for a 50 ohm input rhcp beam. Antennas core product was the antenna mobility platform amp, which won the gsma global mobile award for best mobile enterprise solution at.
This beam covers the entire 144148 mhz band under 1. The idea discone antenna looks exactly like its namesake. The signal 100 m directly under the antenna decreases for the smaller dipoles as one would expect. Risky signals as antenna maker airgain launches ipo. Antenna modeling files american radio relay league. Numerous example models are analyzed in detail and many practical tips and tricks are included. Dress it as center conductor and braid on both ends. The nec group globally provides solutions for society that promote the safety, security, efficiency and equality of society. Thanks for downloading and reading this definitive guide to the widely popular 4nec2 antenna modeling software.
I assume there is some kind of licensing agreement with llnl but dont know how that works with others outside the us selling an nec4 version. It also has a wide angle of beam in its radiation pattern. Having filed a prospectus with the sec last month, the. Super numerical electromagnetic code snec software and. Risky signals as antenna maker airgain launches ipo nasdaq. Some initial words it is a quite an interesting construction with just as interesting characteristics. This is a 3 rd party book and is not connected to arie in any way. About necwin pro the resource is currently listed in in a single category. The w8io antenna site yagio software 23 march 2016 yagio yagi design by w8io. The nec2 program is commonly used by radio amateurs or professional antenna designers on unix equipment to model antennas. The physical design of the antenna is entered such as the lengths of wires and elements. The code was made publicly available for general use and has subsequently been distributed for many computer platforms from mainframes to pcs. The numerical electromagnetics code, or nec, is a popular antenna modeling system for wire and surface antennas. It is a spiral wire with turns a wavelength long at the operating frequency and at least 3 turns.
On the amazon kindle and amazon paperback web pages the look inside feature may be used to show the table of contents, other front matter, and the first few chapters. It was originally written in fortran in the 1970s by gerald burke and andrew poggio of the lawrence livermore national laboratory. Lower gain than the biquad, it also tends to radiate significant sidelobes. Navigate into the nec4dst folder that was created inside the oldnec folder, and open the nec4d. Link here for information and instructions on how to run nec2 in a microsoft windows environment. The 58 wave antenna is typically fed against a ground plane car roof and is usually matched with a tapped inductor. By kurt andress, ni6w by kurt andress, ni6w ytad by n6bv determine antenna gain based on the slope of terrain. Nec4 further allows electrically small antennas to be modeled with better accuracy. Index terms supernec software, helix antenna, radiation resistance.
Another model that you might simulate is the ubiquitous coffee can feed. Wire antenna software free antenna modeling software. There is also a sample nec model that you can use to test your setup. Super nec has a number of builtin antennas that can be very easily constructed. This suite of programs provides graphical depictions of nec2 output. Mininec pro is an antenna analysis program for windows and macintosh computers. With nec4, i use the mathematica package as the frontend for all data preparation and graphical display of results. Ansof simulation software for modeling wire antennas and scatterers.
At present, i know of only two sources of commercial software for nec4. Antenna modeling files introduction in january, 1998, the arrl board of directors changed the arrl advertisementacceptance policy to permit the advertising of antenna gain figures for antennas whose performance can be accurately modeled using either nec4 or yagi optimizer modeling programs. Visit for information about obtaining an nec4 license. Airg is set to make its initial public offering to the nasdaq stock exchange this thursday. For hardware, i would recommend an intel core i7 with as many coresthreads as possible and the highest clock rate such as the core i76950x at 3. W7el sells eznecpro4 which uses nec4 which i also own. How to produce a nec antenna file and what software to.
These ascii files can be created programmatically, or individually with a text editor. Models can include wires buried in a homogeneous ground, insulated wires and impedance loads. We also showcase available technologies online, through federal business opportunities, and at investor conferences, trade shows and other appropriate venues. Yagistress the ultimate mechanical design software for antenna designers. We do not use amateurish programs like eznec pro4 nec4. To install the 4nec2 package, follow the below steps. Nec develops massiveelement active antenna system with c. Roy lewallen, w7el produces eznec pro, which has an. With the proliferation of personal computers and affordable even free software, antenna modeling has become a popular amateur activity. The wolf terminated folded dipole antenna is designed as a regional coverage antenna, intended for near and midrange hf communications in environmental disasters and military tactical scenarios. This unique design places full size elements along the boom in the same plane and produces amazing 2 element monobander performance on all 5 bands. Take a look at my tutorial for describing antennas for wlan deployment. Antenna software brings rust belt into mobile world. Details on how to construct this antenna, both as standalone and as.
I produced an optimum design for a coffee can antenna, with about 9db of gain. Antenna software is a large organization compared to other startups. Introduction the starting point for this tutorial is the helix antenna. The intellectual property of antenna software includes 16 registered patents primarily in the computing. The firm last filed a form d notice of exempt offering of securities on 20926.
The main category is antenna analysis software that is about software, antenna analysis software, for ham radio operators and hams. Antenna software was a business mobility solutions provider with headquarters in jersey city, new jersey and offices in guildford, bangalore, seoul, boston, toronto and krakow. The experimental designs shown above have not yet been built or tested. Mar 19, 2012 for immediate use march 19, 2012 tokyo, march 19, 2012 nec corporation nec. This rectangular microstrip patch antenna is designed for wireless communication application that works at 2. The main category is antenna analysis software that is about software,antenna analysis software, for ham radio operators and hams. Antenna modeling for radio amateurs foothills amateur radio. The results obtain that microstrip patch antenna can be used as client antenna in computer and workable antenna for wireless fidelity. Numerical electromagnetics code nec2 unofficial home page.
The resource is currently listed in in a single category. See who you know at antenna software now part of pegasystems, leverage your professional network. Best software for ham antenna simulation time owned. Pathloss radio and antenna data files this documentation describes the radio and antenna data ascii file formats used in pathloss version 5 program. Aug 23, 2012 thanks, but i have an nec4 license and use the nec4d executable with 4nec2. For a given frequency, the feedpoint impedance is calculated, along with theoretical efficiency. View antenna display, showing the wires making up the model of the fiveelement beam, with currents and 2d slice superimposed to show orientation. Technical and scientific publications, conference presentations. Getting settled and getting started figure 2an eznec elevation pattern for a dipole at 70 feet above average ground at 7.
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