Antenna modeling software and other utility programs by dan maguire, ac6la autoez automated use of eznec. Eznec was developed to work on windows xp, windows vista, windows 7, windows 8 or windows 10 and is compatible with 32bit. Nec numerical electric code is a simulation method for wire antennas, developed by the lawrence livermore laboratory in 1981 or the navy. This link is listed in our web site directory since saturday aug 3 2002, and till today 4nec2 antenna modeler has been followed for a total of 29049 times. About nec win pro the resource is currently listed in in a single category. Take a look at my tutorial for describing antennas for wlan deployment. You can also get all the information about the essential parameters regarding the antenna. Antenna design explorer free download and software. You will get used to using the gm card to rotate your models around the axes. The numerical electromagnetics code, or nec, is a popular antenna modeling system for wire.
The numerical electromagnetics code, or nec, is a popular antenna modeling system for wire and surface antennas. The odu installation bracket will then have an adapter from nec interface to the appropriate iec standard waveguide. Nec 3, and the current nec4 program which superseeds nec 3, allows buried wires and wires close to ground to be modeled correctly. The basic antenna analysis used by nec 2 relies on the method of moments, a mathematical technique that subdivides an antenna element into segments, calculates the correct properties, and then. Sep 07, 2018 14 sep 4nec2 is a freeware antenna simulation software program. This application will link the two tool with cutting edge optimizers able to efficiently optimize antenna designs.
Because in the beginning they were hard paper punchcards. 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. Here is a list of best free antenna design software for windows. Nec numerical electromagnetic code, written by gerald burke, is a popular antenna modeling code for wire and surface antennas and scatterers. Mininec pro is an antenna analysis program for windows and macintosh computers. Wireless image utility for ios wireless image utility is a software for projecting photos and documents to the nec projector via wireless lan from ipad iphone ipod touch. At present, i know of only two sources of commercial software for nec4. Antenna analysis program for windows and macintosh computers.
Much of my antenna research work is based on systematic antenna modeling in a. To be used with either nec 4 or yagi optimizer modeling programs. 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 nec 4 or yagi optimizer modeling programs. Read 36947 times 0 members and 1 guest are viewing this topic. As indicated by the name, cocoanec uses the cocoa framework of mac os x. About 4nec2 antenna modeler the resource is currently listed in in a single category. The best yagi uda antenna modelling software today i want to share with you a great yagi uda antenna modeling software for amateur radio operator and enthusiast. These models will indicate in the cm lines if they need to use nec 4 or 4nec2. Intel cpu is required on xp and vista systems but not on windows 7 and later. 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 nec 4 or yagi optimizer modeling programs. I try to simulate every antenna i get in my fingers. Wire antenna software free antenna modeling software.
Jul 11, 2019 especially designed for antenna modelers, 4nec2 is a simple tool for designing, optimizing and verifying 2d or 3d geometry structures. For a given frequency, the feedpoint impedance is calculated, along with theoretical efficiency. Click here for an offsite explanation of various electromagnetic and antenna modeling techniques including the moment method. Jul 24, 2019 download eznec easytouse program for modeling and analyzing nearly any kind of antenna as well as similar components in its actual operating environment. Nec 4 further allows electrically small antennas to be modeled with better accuracy. Nec4 further allows electrically small antennas to be modeled with better accuracy. Download 4nec2 create, optimize and verify 2d or 3d geometry structures that can be used for antenna modelling using this simple and. For the advanced users of the application, the genetic algorithm optimizer allows complex functions to.
Nec2 4 based antenna modeler, analyzer and optimizer. Of coarse it is the same mechanism with mininec based frontends i. Antenna modeling files american radio relay league. Details on how to construct this antenna, both as standalone and as a parabolic dish feed can be found at this link. With this lib you can easily create nec2 file and automatically run nec2 simulation with python.
To download and try the software click upmost two links below on the right. Modeling a 58 wavelength linear loaded antenna for the cb band and tuning it in the modeling software. Normally, nec models assume propogation along the z axis. Nec24 based antenna modeler, analyzer and optimizer. This is a free gpl electromagnetic simulation software compatable with nec 2. The physical design of the antenna is entered such as the lengths of wires and elements. Yagilogper symmetric dipole array model finds exact gain, directivity and input impedance of yagi or logperiodic antennas planar symmetric. 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 or other mininecbased software. The nec simulation model, and sample output, can be found here.
You can then run multiple eznec test cases while autoez automatically changes one or more. It is the easiest way that i found to obtain both azimuth and elevation plots. In both eznec pro programs, the antenna description is entered using the popular eznec interface method of spreadsheetlike entry and powerful editing tools, or eznec pro can directly read your existing nec description file. There is also a sample nec model that you can use to test your setup. The utility nec 2 for mmana is intended for calculation of antenna models made and optimized in program mmana and for construction and simulation of antenna models using input language nec 2 and based on mmana models. It is also possible to use a separate installation using a waveguide. The antenna direct mount type odus for 7 ghz and ghz are possible to install directly to the antenna using the nec proprietary antenna interface. Qradiopredict qradiopredict is an experimental software for vhfuhf propagation prediction and radio coverage anal. What is the best software used for antenna design and. An nec 4 license must be purchased from the nec 4 holder before purchasing eznec pro 4.
Link here for information and instructions on how to run nec2 in a microsoft windows environment. Each antenna design software is slightly different from each other as each software design some specific types of antenna. Mininec software is powerful, but you need to know its limitations. Numerical electromagnetics code nec2 unofficial home page.
My interest in antenna modeling has always been casual, needing it when an upgrade to my antenna system was needed. The best way to get acquainted with eznec is to download the free demo program. Antenna modelling software based on nec2, nec4, mininec kernels is a frontend to the named kernel. Ansof simulation software for modeling wire antennas and scatterers. At first, antenna modeling software is difficult to understand, primarily because of the cartesian coordinate method used. As before that punchcards needed to be produced and fed to crude computation machines.
North america support only japan for business japan for home monitors lcd,pdp,crt asia pacific japan. 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. The most popular versions among the software users are 5. In the antenna modeling activity, i use two software, mmanagal and 4nec2. Nec was developed by the lawrence livermore national laboratory in the 1970s and is an antenna modelling system for wire and surface antennas. Figure 2the nec win plus basic entry screen for a load consisting of a resistance and a reactance in series called a complex load. What do hobbyists use if they have a desireneed to simulate a pcb antenna. 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. The main category is antenna analysis software that is about software, antenna analysis software, for ham radio operators and hams. It should be the only file inside the zip file you downloaded. For many antenna types, nec 2 is as accurate as engineering mathematics can make antenna analysis.
Autoez works in conjunction with the eznec antenna modeling program and allows you to use variables to control diverse aspects of the model. Through these software, you can design various types of antennas like yagi, jpole, parabolic, quagi, super scanner, etc. The code is based on the method of moments solution of the electric field integral equation for thin wires. Nec tutorial 1 download the folder 4 nec2 from the class website. Nec2 is written for input data files organized as card decks. Nec2 is sufficiently accurate for many antenna modeling purposes, but. We could say these softwares are user interfaces that. Get troubleshooting, maintenance and warranty information.
Multinec can then calculate the results for a given scenario or can run multiple test cases while automatically changing the model between runs. Nec ipasolink 400 installation and provisioning pdf download. To realize this an antenna is divided into short segments with linear. Nec 4 is not in theory available to the public, but having worked in a navy lab for 30 years that did antenna work among other things, and still having a security clearance, i was able to borrow a doubleprecision copy of the basic code, but without a graphical user interface. To do this, advertisers submit their antenna models for verification by the arrl laboratory staff. Parsing nec2 output result file is yet possible but in beta stage. Download 4nec2 create, optimize and verify 2d or 3d geometry structures that can be used for antenna modelling using this simple and straightforward app. I use mmanagal for quick and easy modeling because the interface is very intuitive, while i use 4nec2 for indepth modeling because the tool is more complete than mmanagal. The resource is currently listed in in a single category. Click on the image to the left to see a screen shot from eznec v. Video tutorial on receiving iss astronaut amateur radio conversations with. Nec 3, and the current nec 4 program which superseeds nec 3, allows buried wires and wires close to ground to be modeled correctly. View antenna display, showing the wires making up the model of the fiveelement beam, with currents and 2d slice superimposed to show orientation.
Our display driver quick find will help you quickly identify and download the right driver for your nec or mitsubishi monitor. This onestep tool makes installing drivers quick and easy. Details on how to construct this antenna, both as standalone and as. Here is a small collection of eznec files of antennas i have interest in. The virtual remote tool pro is a software application for operating a projector from an ipad, iphone, ipod touch or other ios device.
The most interesting part of the software is, it can help you to improve your design by projecting the antenna radiation pattern and estimating the radiation resistance. The final goal is to call and score nec2 simulation with optimisation algorithms source code is full documented. Our antivirus analysis shows that this download is virus free. The following ipasolink series cover mobile backhaul requirements all the way from the access tail links through to the metro aggregation network.
Oct 21, 2019 nec was developed by the lawrence livermore national laboratory in the 1970s and is an antenna modelling system for wire and surface antennas. Ade is a companion app for matlab and cst microwave studio. It was originally written in fortran in the 1970s by gerald burke and andrew poggio of the lawrence livermore national laboratory. Nec display software download lcd installer, drivers. Loads, transmission lines, tests and limitations figure 1the relative current distribution along a resonant dipole, using a source current value of 1. File open 4nec2 inoutputfile 4 step 3 takes you to a folder where there are many in built design. Eznec pro2 nec2 based analysis program eznec pro4 nec4 based analysis program helicopter model. Models can include wires buried in a homogeneous ground, insulated wires and impedance loads.
As its been 7 years since ive done so, i surveyed the available software again and found eznec 5. To be used with either nec4 or yagi optimizer modeling programs. Please use the search if you cant find the information. One of 4nec2s most useful tools is integration with voacap so users can see antenna performance under certain. Yag files can be converted using the msdos based scale. The code was made publicly available for general use and has subsequently been distributed for many computer platforms from mainframes to pcs.599 182 659 420 4 1144 933 76 1380 1206 386 1457 1299 1 720 170 1561 1152 1344 807 776 1349 290 1482 1218 1564 264 928 551 901 349 207 1273 1257 1181 819 1183 1085 916 696 438 1496 966 855 952 1200 6