Magnetic loop design software

In the light of the many subjective anecdotal reports extolling their performance, comparisons of their measured operating characteristics against a validated model provide objective evidence that is needed to assure and understand efficient design and operation of small magnetic loop antennas. The small transmitting loop antennaakamagnetic loop. Mar 17, 2019 the magnetic loop design leads to antenna which is tuned to a very narrow frequency range, giving good selectivity. The 4nec2 modeling program1contains a model of an 18sided vertical magnetic loop with an 18sided coupling loop in the sample file named models\hfshort\ magnetic. In the light of the many subjective anecdotal reports extolling their performance, comparisons of their measured operating characteristics against a validated model provide objective evidence that is needed to assure and understand efficient design and. Works either in standard and metric units, and let you choose on material, and loop shape, as circular, square or octagon. Apr 26, 2015 a quick rundown of a transmitting magnetic loop antenna that i built for ham radio. The magnetic wand controls the balls well if it is held flat against the acrylic cover plate. Magnetic loop antenna for 8020 mtrs by frank n4spp. This includes not only larger conducting objects like humans, cars, freezers and fridges, but in my case a bicycle parked nearby.

Portable magnetic loop antennas ham radios best kept secret eric norris wd6dbm v2. The magnet loop antenna calculator program is used to calculate magnet loop antennas and the hf loop antenna. I have only found a small bit of recent data 2 comparing an 1. Particularly critical in the magnetic loop design is the voltage across the tuning capacitor. Another important requirement is that the board be laid down completely flat as in, not held on the childs lap or the balls just roll right out of the number areas.

The autocap system described here is mainly a software effort, both on the pc, and for the motor controller. The magnetic loop couples to the to the magnetic field of the radio wave in the region near the antenna, in contrast to a monopole or a dipole which couple to the electric field of the wave. In part one of this series, i covered the use of one brand of commercially available, small transmitting loop antennas, also known as magnetic loops. Magnetic loop river city amateur radio communications society. There is a general lack of measured data comparing small transmitting loop antennas to some sort of standard antenna. The yahoo magnetic loop antenna group is a discussion forum for design and construction of magnetic loop antennas. Youloop portable passive hfvhf loop antenna now available in. Using the software at the bottom of this page, i worked out that a 36cm length of wire, will need a capacitance of around 3. The main category is antenna analysis software that is about software,antenna analysis software, for ham radio operators and hams. Jul 24, 2015 magnetic loop antennas for the radio operator with limited space pt. I have been experimenting with small generally less then 110 wavelength circumference transmitting loop antennas in the hf bands since the 1980s.

These commercially available loop designs are amazing from 30 meters upwards, but to keep them a handy size, they are too small to have high efficiency down on 40 meters, though they are usable down there. A magnetic loop antenna may be the answer and they are not as difficult to build as you might think. The rf characteristics of a magnetic loop are very much influenced by conducting objects in the close vicinity 2m of the loop. However, since the small loops radiation resistance is very small compared to that of a full sized resonant. This calculator enables you to test the design of an octagonal loop antenna and to answer what if questions until you arrive at a design that meets your needs. Loop systems mlat pro top band qrp magnetic loop antenna, the mlat is a magnetic portable antenna for 160m, 80m and 40m. Works either in standard and metric units, and let you choose on material, and loopread more. Using the mag loop modeling program written by g4fgq rjeloop1, a 3 ft diameter circular loop operating on 14mhz requires a resonating capacitor of about 50pf. Welcome to the magnetic design tool the magnetic design tool provides access to the digitized material data for all current tdk electronics ferrite materials and allows applicationrelated parameters to be calculated and represented on graphs, hysteresis loop, power loss, initial permeability, amplitude permeability and complex permeability. There are many designs and information available on the net concerning magnetic loop antennas even though these antennas are a fraction of the size of a full size resonant antenna, size of the lower frequency loop can still be quite large for a limited sized property. A small loop is driven almost completely by the magnetic field generated by the driven element, and the lines of magnetic flux cut both the inner and outer surfaces of the main large loop, inducing current flow into each one, independently, and the two are able to create a combined magnetic field around the antenna. Small transmitting loop antennas, commonly called magnetic loops or mag loops, can give surprisingly good performance when they are carefully designed and constructed. Mar 20, 2020 unlike fixed magnetic loops, the youloop design is also easy to experiment with. This is where the term magnetic loop antenna originates.

The big advantage of this antenna is that the electric interference from the big city streetlights, televisions, cars etc. This indoor small magnetic loop antenna was an interesting antenna to build and use. A magnetic loop antenna for hf iw5edi simone hamradio. How does one know what loop diameter or tube length is needed for the required frequency. Its a light magnetic loop antenna calculator that run on ms windows, and allow to calculate capacitor values and voltage based on loop circumference, conductor diameter, desired resonant frequency and the operating power. Magnetic loop antennas this antenna is picking only the magnetic part of the elektro magnetic radio wave. This calculator enables you to test the design of an octagonal loop antenna and.

This project is for those ham amateurs who dont have a commercial one. Magnetic builder magnetic design software, inductor and. This is a duplicate design of my single element helical loaded loop. However there are no models, that this author is aware of, which can model magnetic loop antennas having multiple parallel conductors. You will need the following information to use the program. Wikipedia, the last word on antenna design zsmall loops have a poor efficiency and are mainly used as receiving antennas at. Although this online calculator is intended to assist with designing and building homemade, ham radio loop antennas for use in the hf bands, magnetic antennas have been. The small magnetic loop is a useful compromise antenna for limited space and portability. This software should not be used for loops having a larger circumference than 1 10 lambda.

Loop antenna calculators suggest that a loop of that size can be tune from 40 to 10 mtrs with a variable capacitor of 10180 pf. Magnetics offers many tools to assist engineers at all levels of the design process. However, it also requires retuning quite often in order to stay onband. We found that replacing the 1m loop cables with 2m lengths gave quite nice results for us. The 4nec2 modeling program 1 contains a model of an 18sided vertical magnetic loop with an 18sided coupling loop in the sample file named models\hfshort\ magnetic. Small transmitting loop antennas, commonly called magnetic loops or mag. The calculators give you theoretical values, your actual construction will also affect the antenna greatly. By using longer coax cables you can easily create a larger loop which can result in stronger signals. Amateur radio antenna sold here,we update our stocks to keep in touch with modern improvements in magnetic loop antenna design. Initially a hexagonal loop was planned, because its construction from copper tube requires no precise bending and therefore is easier than constructing a circular loop. But this makes the antenna very selective and sharp. Magnetic loop antennas describes a loop useable from 7 21 mhz. Youloop portable passive hfvhf loop antenna now available. With many styles to choose from and the best stainfighting technology in the industry, shaw carpet brings color, texture and value to your floors.

The basic configuration of a small magnetic loop consists of the main loop, coupling loop, and capacitor fixed or variable. Listed under the software antenna analysis category that is about antenna analysis software. Portable magnetic loop antenna described here is a simple multiband magnetic loop antenna designed for 20, 30 and 40 metres. Magnetic loop antenna design software this software is very useful for designing a magnetic loop antenna, just enter the desired value and it will calculate it for you.

Propagation was not favorable on 17 and 12 meters immediately after construction when testing, but a good match was obtained on both bands. Furthermore software to model square magnetic loop antennas is rather uncommon. This link is listed in our web site directory since friday may 9 2008, and till today magnetic loop calculator has been followed for a total of 5652 times. Magnetics designer produces a complete transformer or inductor design based upon electrical specifications, including a winding sheet report and a spicecompatible model with parasitics. Details including schematic on the control box here. Very close to a small loop antenna but not necessarily near the open ends of the small loop where the tuning capacitor is the magnetic field. Calculator results for a loop with a diameter of 1 m 3. If you have the space you could try even larger loops too.

In contrast to the mla m here is a stepper motor in the housing for tuning. For that article, i bought the very popular alexloop walkham antenna. All about magnetic design loop warm up rooms and reduce energy bills with the natural insulation and comfort of carpet. It is the energy storage or reactive induction field response within.

Tuned magnetic loop antenna enmu eet 490 capstone update 2. If you dont know what a youloop is, it is a simple passive magnetic loop antenna design which consists of a ring of coax cable and a low loss 1. This is a free space model with fixed coordinates and perfect conductors. This controller doesnt have endstop limit capabilities. A quick rundown of a transmitting magnetic loop antenna that i built for ham radio. Its easy to build with a soldering iron, a plastic case and a little knowledge of arduino. Magnet loop antenna calculator antennas i1wqrlinkradio. I have made the entire design and software package of my controller application.

This link is listed in our web site directory since tuesday aug 21 2001, and till today magnetic loop designer has been followed for a total of 14076 times. A magnetic loop antenna for shortwave listening swl now that were on the downward slope of sunspot cycle 23 2004 you may have noticed that some of your favorite broadcast stations dont come in as strong as they did a few years ago. Magnetic loop river city amateur radio communications. Ham radio magnetic loop transmitting antenna overview. Buy products related to magnetic designer products and see what customers say about magnetic designer products on free delivery possible on eligible purchases. Home made high power magnetic loop antennas amrron. Loop antenna design and construction, magnetic loop antenna. A magnetic loop antenna for shortwave listening swl kr1st. Ham radio magnetic loop transmitting antenna overview and. Using this software you can design round or square magnetic loop antennas having a single conductor, or multiple parallel conductors. About magnetic loop designer the resource is currently listed in in a single category. You need to decide if you wish to make a circular or a square magnetic loop. You may want to check out more software, such as ferrite magnetic design tool, designers gallery studio iii or kitchen design software, which might be.

Due to the high voltages and strong radiation field this antenna may produce, take care to avoid close proximity to this antenna while transmitting significant power levels. Magnetic loop antennas for qrp amateur radio hackaday. There are programs loop calculator that produce this information. The experience obtained from constructing the small double loop was a good reason to construct the hf magnetic loop described below. This is a free space model with fixed coordinates and perfect. This is the handy tool that helped me decide what size loop to build in each case. Magnetic loop ideal for restricted space locations,you can remotely tune to the. This article provides all the details needed to build your own. Magnetic loop antennas resonant loop antennas radioworld uk. By nameplate from the antenna i have known, that the antenna was made in 1949 on one of plants of gorky now nizhniy novgorod, russia. The 4nec2 modeling program 1 contains a model of an 18sided vertical magnetic loop with an 18sided coupling loop in the sample file named models\hfshort\magnetic. Many contacts were made on 20, 15, and 10 meters using psk31 and 10 watts.

Magnetic loop antenna calculator resource detail the dxzone. Magnetic loop antennas for the radio operator with limited space pt. For those with no trees, little room, maybe a patch of grass, or a deck or a sliding glass door where you can erect an antenna and only temporarily, for the bands above 7 mhz, id suggest an antenna commonly called a magnetic loop. It can be analyzed as coupling directly to the magnetic field opposite to the principle of a hertzian dipole which couples directly to the electric field. Magnetic loop design software this is the handy tool that helped me decide what size loop to build in each case. Earlier this year i saw a very impressive magnetic loop design being used by a fellow radio club member, henrik vk2hhs. The smallest antenna described for 80 metres was a magnetic loop. The magnetic loop design leads to antenna which is tuned to a very narrow frequency range, giving good selectivity. A second loop, which is one fifth of the diameter of the large loop, is connected to the feedline and this small loop is positioned in the large loop on the opposite side of the tuning capacitor. The main category is antenna design calculators that is about antenna design calculators. The control software the main component of the system is the pcbased software. So, the loop diameter should not exceed about 1 mtr. Magnetics core selection guide, and extensive library.

Like getting on the air for the first time or taking your license exam there is a certain amount of uncertainty when you first approach magnetic loop antennas, there are. A magnetic loop is essentially a small loop antenna whose circumference is less than 110 of the wavelength. Build a magnetic loop antenna controlled by arduino. The small single turn magnetic loop sstml antenna consists of a single winding inductor, about 3 feet 1 meter in diameter, and a tuning capacitor. Nec modeling software does not accurately model this antenna. Magnetic builder magnetic design software, inductor and transformer design tool poweresim is a free webbased software providing power supply smps design, transformer design, magnetic design, loss analysis, thermal analysis, waveform analysis, mtbf analysis, bom building, dvt analysis and optimization of power supply smps. To be a magnetic loop, the loop circumfrence must be less than 0. A key characteristic of magnetic loop antennas is the very narrow bandwidth when tuned, so that if you qsy a few khz you need to retune the loop. Like getting on the air for the first time or taking your license exam there is a certain amount of uncertainty when you first approach magnetic loop antennas, there are a few new ideas to grasp. There are a number of models for single turn magnetic loop antennas. Design a magnetic loop antenna to operate in the 80m to 20m bands or wider.

The image below shows the information on my loop above, at 14mhz with 50w rf. Remotelytuned loop receiving antenna for lw and mw. Designing with soft magnetic cores can be challenging given the myriad of factors that are involved in selecting the optimum core for a given design. Magnetics designer is a standalone software program for windows that designs all types of layer and sectorsplit bobbin wound transformers and inductors, and generates a corresponding spice model. About magnetic loop calculator the resource is currently listed in in a single category. The alexloop and most commercial magnetic loops are designed for low power, usually limited to 10 cwdigital or 20 watts ssb voice. Youloop portable passive magnetic loop antenna for hf and vhf.