Eznec a well known commercialbased antenna modeling package based on nec3 and nec4. In the design of reflector and feed horn based antenna systems i use grasp10, which is a powerful software package incorporating physical optics, physical theory of diffraction, geometrical optics. Figure 1a necwin plus azimuth pattern for a dipole at 70 feet above average ground at 7. Take a look at my tutorial for describing antennas for wlan deployment. We perform the design work using the latest professional full3d electromagnetic modelling software. Best software for ham antenna simulation time owned. Yagicad is a fully integrated analysis and design package primarily intended for vhf yagi aerials. Antenna, ve3sqb ham radio antenna design software programs. The code was made publicly available for general use and has subsequently been distributed for many computer platforms from mainframes to pcs. Portrayed below is a complete and selfcontained nec model of one popular form of the endfed halfwave dipole antenna. With nec4, i use the mathematica package as the frontend for all data preparation and graphical display of results. What is the best software used for antenna design and. May 16, 2020 yagi calculator is a windows program that also runs well on linux, ubuntu 8.
This antenna software module also helps you validate existing antenna designs and study a plethora of antenna design issues, including. Which software is the best for designing a microstrip antenna array fed by hybrid waveguidemicrostrip network. 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. Thanks for downloading and reading this definitive guide to the widely popular 4nec2 antenna modeling software. View antenna display, showing the wires making up the model of the fiveelement beam, with currents and 2d slice superimposed to show orientation. Asap antenna scatterers analysis program, is a free general purpose antenna analysis software program for numerical electromagnetic antenna design, modeling and analysis. Obtain the vector frequency response of arbitrary 3d antenna structures. A common antenna type which, in its simplest form, consists of a straight wire cut in the middle so that each half may be connected to one of the two conductors of a transmission line. You can also save in the k6sti ao format if you happen to use this software. The kernel is fed with the geometry of an antenna design. W7els eznec, ve2gmis nec4 win, sm5bszs yolin and nec2 mod, and wa7rais quickyagi as the knowledge of a certain degree related to the antenna design could be acquired by using these softwares, i would like to state my opinion about how to make a computer designed antenna.
This enables us to accurately include the influence of the boom, insulators, baluns, feed. Through these software, you can design various types of antennas like yagi, jpole, parabolic, quagi, super scanner, etc. Much of my antenna research work is based on systematic antenna modeling in a version of the numerical electromagnetics code nec. These include library component design, work flow consultancy, data migration, interface configuration, e. There is also a sample nec model that you can use to test your setup. Autoez works in conjunction with the eznec antenna modeling program and allows you to use variables to control diverse aspects of the model. This rectangular microstrip patch antenna is designed for wireless communication application that works at 2. The nec4 professional service contract psc is intended for use in the appointment of a supplier to provide professional services. There are softwares that are best for simulating planar structures.
Roy lewallen, w7el, who writes this software regularly makes updates and bug fixes so the software continually gets better. Details on how to construct this antenna, both as standalone and as. This enables the designer to specify, say, for an ocf, both of the lengths of the segments as variables. It also has a wide angle of beam in its radiation pattern. Feko software simplifies the design process of microstrip antennas with its comprehensive computational toolset. Later versions, nec3 and nec4, are available after signing a license. It runs under windows and can be used to simulate, analyze and optimize wire antennas, beams, verticals, etc. 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. In the above example, the beamwidth of the antenna pattern is about 60 degree. To install the 4nec2 package, follow the below steps. Ii symbolic antenna construction within the context of the original fortran card construct for nec2. Antenna modeling for radio amateurs foothills amateur radio. A page showing some of the antenna modeling software out there a person can use. Obtain the radiation pattern of any antenna over a frequency range.
What is the best software used for antenna design and simulation. The width of the main lobe or main beam spanning a 3db difference in gain. What are some good software tools for antenna design and. Being a simulation software, it is important to evaluate the results given by the computer. Use 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.
The following brief notes will provide links to known antenna modeling software providers. At this point, if you are satified with the design, you can save it in 3 ways. Using the new tlw software bundled with recent editions the arrl antenna. Antenna software free download antenna top 4 download. How to produce a nec antenna file and what software to use. Unless you use k6stis ao antenna optimizer program, you can normally ignore the question about calculating the geometry of the feeder. It is used to model thin wire antennas and 3d models constructed of thin wires. In xfdtd, a set of eight 1 to 8 wilkinson stripline power divider networks is designed to act as the. Details on how to construct this antenna, both as standalone and as a parabolic dish feed can be found at this link. Kb0ykis radio zone online jpole designer, online yagi designer, the copper cactus double jpole pcaad 2.
Nec4 further allows electrically small antennas to be modeled with better accuracy. Nec4 antenna software nec based antenna modeler and optimizer. Which software is the best for designing a microstrip antenna. Antenna modelling software based on nec2, nec4, mininec kernels is a frontend to the named. The arrls antenna book makes extensive use of eznec and includes many example files in ez format to model amateur radio antennas.
An excel workbook to aid in the design of a feed system for a typical two. Antenna lets you to design and develop great looking. At first, antenna modeling software is difficult to understand, primarily because of the cartesian coordinate method used. Nec24 based antenna modeler, analyzer and optimizer. This is a 3 rd party book and is not connected to arie in any way. Full wave method of moments mom formulations accurately compute the current distribution on all metallic elements of a microstrip antenna and then compute antenna characteristic parameters from these currents. Nec is widely used for modeling antenna designs, particularly for common. To download and try the software click upmost two links below on the right. Can be interfaced to hfwin32 propagation prediction software.
W7els eznec, ve2gmis nec4win, sm5bszs yolin and nec2 mod, and wa7rais quickyagi as the knowledge of a certain degree related to the antenna design could be acquired by using these softwares, i would like to state my opinion about how to make a computer designed antenna. Nec lab nec lab is a powerful tool that uses numerical electromagnetics code nec2 and artificial intelligence ai to design antennas. The nec4 framework contract fc is intended for use in the appointment of suppliers to carry out construction work or to provide design or advisory services. Moments code started as an advanced version of the antenna modeling program amp. One area that is still open to amateurs is in antenna building. The design of the rotman lens is performed using remcoms rotman lens designer rld software, which produces a cad version of the device for use in xfdtd. Design great looking web sites rapidly with antenna, powerful web design software. 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.
Long yagis are commonly used from the 144mhz amateur band to the 2. Later versions, nec3 and nec4, are available after signing a license agreement. 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. Includes nec2 and supports nec4 with separate license. Nec4 antenna software nec based antenna modeler and. By design, it is assumed one requires a transmission line or coupler to have certain electrical properties and one wishes to find how to physically realise such a structure. 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. For a hundred years the amateurs have made more breakthroughs in antenna design than the professionals.
This proved to be an invaluable aid during the design of my 3496 hz radiolocation system. Asl antenna software ltd of great britain offers a range of specialized antenna software. Which software is the best for designing a microstrip. To get good results, you need to follow a set of design rules as with all antenna software but the results are quite excellent.
We do not use amateur programs like eznec pro4 nec4. Antennas powerful editor is entirely visual, giving you pixel. Getting settled and getting started figure 2an eznec elevation pattern for a dipole at 70 feet above average ground at 7. Jan 20, 2016 antenna modelling software based on nec2, nec4, mininec kernels is a frontend to the named kernel. Source code and windows executables are available to download. Intel cpu is required on xp and vista systems but not on windows 7 and later. This enables us to accurately include the influence of the boom, insulators, baluns, feed point, connections, etc.
If you saveexport the design to the nec format, this will be used automatically. W8io antenna site lpcad log periodic antenna design. Numerical electromagnetics code nec2 unofficial home page. As well as developing and marketing software solutions for the design, documentation, and operation support of access networks and solution offers an extensive portfolio of professional services. Antenna modeling software from dan maguire ac6la multinec, moxon generator, tldetails, etc. Nec numerical electromagnetic code, written by gerald burke, is a popular antenna modeling code for wire and surface antennas and scatterers. Cocoanec open source gui frontend for apple mac os x. The nec simulation model, and sample output, can be found here.
Listed under the softwareantenna analysis category that is. Nec is a large antenna analysis program written in fortran and designed to run on mainframe computers. Especially designed for antenna modelers, 4nec2 is a simple tool for designing, optimizing and verifying 2d or 3d geometry structures. Nec is widely used for modeling antenna designs, particularly for common designs like television and radio.
Nec4win nec4win is a 32 bits commercial antenna simulation software based on mininec3 developed by the naval ocean systems center in the 70s and 80s. Antenna modeling software and other utility programs by dan maguire, ac6la autoez automated use of eznec. At present, i know of only two sources of commercial software for nec4. The results obtain that microstrip patch antenna can be used as client antenna in computer and workable antenna for wireless fidelity. Ansof simulation software for modeling wire antennas and scatterers. The code is based on the method of moments solution of the electric field integral equation for thin wires. It was originally written in fortran in the 1970s by gerald burke and andrew poggio of the lawrence livermore national laboratory. This design can then be optimised or scaled to suit particular requirements.
Listed under the software antenna analysis category that is. 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. Link here for information and instructions on how to run nec2 in a microsoft windows environment. 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. Where do antenna modeling programs come from, how do they work, what are their. Most programs using nec include features that run batches of nec.
To be used with either nec4 or yagi optimizer modeling programs. With the proliferation of personal computers and affordable even free software, antenna modeling has become a. Antenna modelling software based on nec2, nec4, mininec kernels is a frontend to the named kernel. We could say these softwares are user interfaces that handle a data set, namely an antenna geometrie and a command. The dl6wu yagi is highly regarded as being easy to build with repeatable results, broad bandwidth and a useful pattern. Antenna design programswith surface mount technology and microcircuitry, most hams no longer build their own equipment. With the proliferation of personal computers and affordable even free software, antenna modeling has become a popular amateur activity. Using software for antenna desing is useful because.
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