Take a look at my tutorial for describing antennas for wlan deployment. Using this software, you can design and build your own yagi antenna. Nec simulates the electromagnetic response of antennas and metal structures. Yagi calculator is a free antenna design and analysis software for windows. Also the antenna dimension gets better for having a high efficiency and the most bandwidth in 195 mhz to 215 mhz frequencies. It also includes stateoftheart 3d visualization and a drawing style structure editor. There is also a sample nec model that you can use to test your setup. It resulted in a high directivity and peak gain14 dbi. Applying a feed to any antenna in nec or any electromagnetic simulation software is about a simple a task as can be conceived by placing a source of near infinitesimal size inline with a dipole element. The numerical electromagnetics code, or nec, is a popular antenna modeling system for wire and surface antennas. Aea wireless software aea wireless director software series turns pcs running windows 95982000me or nt into powerful tools that expand the use and power of swr, return loss and complex impedance analyzers.
These files, the rf notebooks, have been distributed through the unofficial nec archives since 1996, but now as. I produced an optimum design for a coffee can antenna, with about 9db of gain. What is the best software used for antenna design and simulation. Jpole antenna is pretty easy to build and usually designed by amateur radio operators through this software, you can easily find out four important parameters to build this antenna namely, radiator length, driven stud length, gap space, and feedpoint. Nec2 antenna design software uses a single wire of a constant diameter for each element to calculate antenna characteristics. Mar 23, 2015 example antenna files can also be downloaded from koks webpage. Mmanagal is an antennaanalyzing tool based on the moment method, which was introduced in mininec. Antenna analysis program for windows and macintosh computers. 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.
Jul 11, 2019 especially designed for antenna modelers, 4nec2 is a simple tool for designing, optimizing and verifying 2d or 3d geometry structures. Jpole is a free and portable antenna design software for windows. Obtain the radiation pattern of any antenna over a frequency range. Describe your experience with the eznec antenna design software by w7el and tell us why you give it the rating you did required. The physical design of the antenna is entered such as the lengths of wires and elements. For antennas design, the first choice of the software depends on the geometry of the antenna. M mana is an antenna analyzing tool based on the moment method introduced in mininec mini numerical electromagnetics code version 3.
The application is free and it can be downloaded from the download page which can also be accessed by using the download tab button at the top of this page. Antenna modeling for beginners american radio relay league. Snec software is one of a specific for antenna design and simulation. This site is your download source for a set of microsoft excel 2007 files covering all aspects of antenna design. Read 36947 times 0 members and 1 guest are viewing this topic. Includes nec2 and supports nec4 with separate license. Nec2 based freeware antenna modeler and optimizer with interface to hfwin32 propagation prediction software. How to produce a nec antenna file and what software to use it with.
With the proliferation of personal computers and affordable even free software, antenna modeling has become a popular amateur activity. What do hobbyists use if they have a desireneed to simulate a pcb antenna for say sub 1ghz frequencies. Analysis of thinwire structures in the presence of finite ground. 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. Nec2 for mmana the utility nec2 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 nec2 and based on mmana models. What do hobbyists use if they have a desireneed to simulate a pcb antenna. Nec numerical electric code is a simulation method for wire antennas, developed by the lawrence livermore laboratory in 1981 or the navy. Super numerical electromagnetic code snec software and. It is restricted to antenna elements of a single diameter although some software providers have introduced corrections for linear elements whose diameters varies. Nec 4 the latest version of nec is nec 4, which overcomes most of the shortcomings with earlier codes.
This professional software tool is called super nec 2. Nec4 the latest version of nec is nec4, which overcomes most of the shortcomings with earlier codes. 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. Antenna solver provides much greater flexibility in the construction, analysis, and interpretation of radiating structures using a rewritten nec module. Wire antenna software free antenna modeling software. A folded grounded ground plane is a parallel transmission line that is shorted at one end. May 19, 2016 antenna design by 4nec2 withaya hongsa. The main category is antenna analysis software that is about software,antenna analysis software, for ham radio operators and hams. Besides regular improvements, new improvements create the possibility of further improvements of capabilities and services available with the program.
It is true that 4nec2 is a bit nonintuitive when it comes to creating a new antenna, but it is easy to start from scratch and create anything, without the need to. Especially designed for antenna modelers, 4nec2 is a simple tool for designing, optimizing and verifying 2d or 3d geometry structures. The main category is antenna analysis software that is about software, antenna analysis software, for ham radio operators and hams. Wlan antenna simulation with nec2 will save you countless hours of cut and try in the lab. Asap a free general purpose antenna analysis useroriented software program for numerical electromagnetic antenna design, antenna modeling and antenna analysis. Details on how to construct this antenna, both as standalone and as a parabolic dish feed can be found at this link. Antenna presents introduction to antenna theory duration. This software can not only be used to design but also to find out antenna gain, stacking distance, and standing wave ratio swr. At first, antenna modeling software is difficult to understand, primarily.
Comprehensive website of lb cebik, w4rnl silent key requires signup to access previously free but recently converted to a subscription services with the online magazine, hundreds of useful tutorials, models, and antenna design notes steve stearns, k6oik, has published antenna modeling for the. How to produce a nec antenna file and what software to use. Other useful information would include your experience with similar products, infomation on a product that you would purchase instead of this one, and so on. Eznec is specifically designed to be friendly and easy to use while taking full advantage of the powerful and versatile nec2 calculating engine. To be used with either nec4 or yagi optimizer modeling programs. Applied computational electromagnetics society home page. Amateur radio antenna development software nec page 1. Yag files can be converted using the msdos based scale. In this tutorial i will explain what a nec antenna modelling software is. 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. Ansof simulation software for modeling wire antennas and scatterers. To download and try the software click upmost two links below on the right. Nec24 based antenna modeler, analyzer and optimizer.
About necwin pro the resource is currently listed in in a single category. And the radiation pattern of this antenna is good and have a suitable directivity. Cocoanec free nec software for the mac osx tiger operating system by w7ay. Antenna modeling software for the mac henry ott consultants. The following brief notes will provide links to known antenna modeling software providers.
In addition to english default, russian more information about russian mmana available on dl2kqs website. Numerical electromagnetics code nec2 unofficial home page. Necwin pro antenna analysis software with the user in mind. Your source for unique arduino, rf, excel, nec, antenna. An excel xl workbook to calculate antenna gaintemperature ratio gta, average gain, directivity, and other metrics by using 3d pattern data from eznec, autoez, 4nec2, a. W8io antenna site antenna modeling links the w8io antenna site nec and mininec 21 october 2016 nec software for yagi design software version author type of yagi design inputopenimport file formats saveexport file formats price 4nec2 version 5. Much of my antenna research work is based on systematic antenna modeling in a version of the numerical electromagnetics code nec.
Another model that you might simulate is the ubiquitous coffee can feed. Nec lab nec lab is a powerful tool that uses numerical electromagnetics code nec2 and artificial intelligence ai to design antennas. Since most hf antennas require elements of tapering size, a conversion method is required. Nec model library the link points to necaoyo models of various ham antennas that i have simulated andor tested over the past 38 years as an antenna design engineer. Intel cpu is required on xp and vista systems but not on windows 7 and later. Obtain the vector frequency response of arbitrary 3d antenna structures. It is used to design jpole antennas for the desired frequency. Nec model library the link points to nec aoyo models of various ham antennas that i have simulated andor tested over the past 38 years as an antenna design engineer. Wb0dgf antenna site antenna modeling links, lpcad and aprs. This reflects substantial structure changes to the program. Wb0dgf antenna site antenna modeling links, lpcad and. Example antenna files can also be downloaded from koks webpage. 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.
Our design consists of four equally sized squares radiating element and one reflector. Design and simulation the double biquad antenna was first created and simulated in nec software before fabricating the. The code was made publicly available for general use and has subsequently been distributed for many computer platforms from mainframes to pcs. Can be interfaced to hfwin32 propagation prediction software. Additional loss due to swr is in quotes for a reason. Included standalone nec tie app in main yagicad directory, also available from tools menu, that can import nec most nec2 and 4nec2 nec, yw. Portrayed below is a complete and selfcontained nec model of one popular form of the endfed halfwave dipole antenna. Nec numerical electromagnics code was developed by lawrence livermore laboratories in 1981 to simulate the electromagnetic response of antennas and other metal structures. 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. Added antenna notes window, via tools menu, for multilinelonger notes on a design.
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 315 times. Comprehensive website of lb cebik, w4rnl silent key requires signup to access previously free but recently converted to a subscription services with the online magazine, hundreds of useful tutorials, models, and antenna design notes. For a given frequency, the feedpoint impedance is calculated, along with theoretical efficiency. Software beta testing was provided by a group of fellow amateurs. Mininec should not be confused with nec, which is a large antenna analysis program written in fortran and designed to run on mainframe computers. Lower gain than the biquad, it also tends to radiate significant sidelobes. The nec files may be used with any of the nec2 or nec4 programs such as 4nec2, gnec or cocoanec, however some of them with tapered elements may only be simulated accurately by nec4. For simulating this antenna used the snec software that is one of a specific for antenna design and simulation. As indicated by the name, cocoanec uses the cocoa framework of mac os x. Antenna propagation and simulation a tree antenna by super. How to produce a nec antenna file and what software to.
Nec numerical electromagnics code was developed by lawrence livermore laboratories in 1981 to simulate the electromagnetic response of. What is the best software used for antenna design and. Best software for ham antenna simulation time owned. Super nec has a builtin template for a yagi antennas which allowed us to simply input the yagi antennas element spacings and super nec generated a three. Antenna modeling eznec tutorial by greg ordy, w8wwv for intermediate users. A page showing some of the antenna modeling software out there a person can. This antenna software module also helps you validate existing antenna designs and study a plethora of antenna design issues, including. Included standalone nectie app in main yagicad directory, also available from tools menu, that can import necmost nec2 and 4nec2 nec, yw. Nec2 is a highly capable version of the code which is in the public domain. To realize this an antenna is divided into short segments with linear. It just happens at 14 wavelength long the folded section that is grounded is an inverse of the section that goes from the feedpoint to the far end and the folded grounded section is transparent to the radio and it simply operates as a 14 wave monopole. Hfsss microstrip patch antenna design part1basics of antenna design using hfss software. The program provides ability for changing the language of signs and messages of the program.
If the antenna is planar with an infinite ground for me, the best one and quick one in simulation is. Ee 172 extra credit project san jose state university. Wire, source, load, transmission line, and ground entries are done in a spreadsheetlike format. Enter the operating frequency and calculate dimensions of your jpole antenna. These adjustments can be easily and quickly made using antenna design software. Antenna maker antenna design program for quads, yagis, inverted vees, jpoles, trap dipoles and more. The resource is currently listed in in a single category. If it is not visible just press f3, or if the window is visible and the geometry was not updated just select viewreset on the geometry window. The numerical electromagnetics code, or nec, is a popular antenna modeling system for wire. 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 315 times.