How to Make a Fractal Antenna for HDTV DTV Plus More on the Cheap 9 Steps with PicturesThis instructable is from http ruckman. FEATUREDand submitted by William Ruckman of http ruckman. Showcased in the March 2. Popular Science Magazine http www. The first thing I would like to discuss is a little history, theory, and uses for fractal antennas. Fractal antennas are a recent discovery. First discovered back in 1. Nathan Cohen and later published and patented in 1. How To Marry The Rich. A fractal antenna has a few unique attributes as seen in this definition from Wikipedia A fractal antenna is an antenna that uses a fractal, self similar design to maximize the length, or increase the perimeter on inside sections or the outer structure, of material that can receive or transmit electromagnetic signals within a given total surface area or volume. What exactly does that meanWell, you need to know what a fractal is. Also from Wikipedia A fractal is generally a rough or fragmented geometric shape that can be split into parts, each of which is at least approximately a reduced size copy of the whole,a property called self similarity. So basically, a fractal is a geometric shape that repeats and appears over and over no matter how far out or how far in you zoom magnification. Microstrip Antenna Patch' title='Microstrip Antenna Patch' />ANTENNA MAGUS Complete list of Antennas in the database Antenna information Horns, Spirals, patch antennas, wire antennas, reflectors, wideband, high gain, dish. Source Wikipedia and http patimg. Page. Num6 docidUS0. Patent number 7. Fractal antennas have been found to be approximately 2. Which could be useful. Especially if you want to make your own TV antenna to pick up over the air digital or high definition video, increase your cellular range, wifi range, FM or AM radio reception, and so on. Most cell phones already have built in fractal antennas. If you noticed in the past few years that cell phones no longer have antennas on the outside. That is because they have a internal fractal antenna etched on a circuit board which allows them to get better reception and pick up more frequencies such as bluetooth, cellular, and WIFI all from one antenna at the same time Wikipedia info A fractal antennas response differs markedly from traditional antenna designs, in that it is capable of operating with good to excellent performance at many different frequencies simultaneously. Normally standard antennas have to be cut for the frequency for which they are to be usedand thus the standard antennas only work well at that frequency. This makes the fractal antenna an excellent design for wideband and multiband applications. The trick is to design your fractal antenna to resonate at what ever center frequency you wish to receive. Which means it will look different and be sized different depending on what you want to receive. A little math can be used to figure this out. Or a online calculatorIn my example, I am going to make a simple one but you may want to make a more elaborate one. Saber Power Electronics Simulation. The more elaborate the better. I will use a spool of 1. Gauge solid core wire to make a antenna as an example but you could go as far as to etch your own circuit boards for aesthetic reasons, to make it smaller, or more elaborate with more resolution and resonance. I am going to use the example of making a TV antenna for digital or high definition reception for over the air broadcasts. New Holland 275 Square Baler Specs here. It is easier to work with these frequencies and they fall around half a foot to a few feet in length for half wavelengths of the signal. I am also going to base it off a common dipole antenna for simplicity and cheapness of parts for VHF. For UHF you may want to add a director or reflector which will also make it more direction dependent. VHF is direction dependent as well but instead of pointing directly at the TV station like UHF you want VHF rabbit ears dipole antenna to be perpendicular to the TV station. But there is a little more design to that. I want to keep this as simple as possible as it is already a very complex subject. Basic supplies cost me about 1. Mounting surface such as the plastic project enclosure 8x. Id2. 06. 22. 85. I used steel self tapping sheet metal screws. A impedance matching transformer 3. Id2. 06. 20. 49. Some 1. Id2. 03. 62. 74. RG 6 coaxial with terminators and rubber jacket if mounting outside. Aluminum if using a reflector. The enclosure above came with one. A sharpie marker or equivalent preferably with a fine tip. Two pairs of small needle nose pliers. A ruler of at least 8 inches. A protractor to measure angle. A drill and drill bit that is smaller diameter than your screws. Small wire cutter. Screw driver or screw gun. NOTE The bottom of the antenna is to the right of this picture where the transformer sticks out. XTloWpTSmAo/UhIQvuAVdDI/AAAAAAAABaI/r3pcoNoT6eA/s1600/13.png' alt='Microstrip Antenna Patch' title='Microstrip Antenna Patch' />ANTENNA MAGUS latest release update summary new antennas, bug fixes, improvements, new features Version update information.