This calculator is for short boom simple multi element monoband yagi antennas, and will not give you a perfect 50 ohm match. This calculator is designed to give the critical information of a particular beam antenna, in this case a three element yagi, for the frequency chosen. Antenna maker software dos program is used to analyse the antenna lengths. To design the antenna, you need to go to task design yagi menu. Calculation of the element length and element spacings of a yagi for a particular frequency. When you design a new antenna using a computer software, you may be. The spacing are the same between the elements and when built successfully it will give you a very desirable 9. Enter the desired frequency then click on calculate and the optimum values for that combination will be displayed in feet, inches and fractions of inches, and in meters. The optimisation program uses the antenna calculation package as a subprogram calc. Long yagi are commonly used from the 144mhz amateur band to the 2. If you decide you really need a yagi with more elements, here are the lengths of them. Free online engineering calculator to find the dimensions of a yagi uda antenna for a given frequency range and length. Yagi calculator is a program to assist with the design of long yagi antennas.
This owa design uses reflectordriver1stdirector spacing that applies generally to owayagis. Yagi calculator is a program build to produces dimensions for a dl6wu style long yagi antenna. For advanced design look at the picture on the page for eznec software to get an idea of the shape you should be looking for. Yagi calculator this is where you input the center frequency in megahertz. Computer design of very high gain yagi antennas sm 5 bsz. The design and simulation is done using simulation software know as antenna magus 2. However, for example, if you check the swr bandwidth of its 11 element yagi for 6m. Yagi antenna calculated values from antenna maker download. To build the 4 elements yagi you may follow the direction for building the 3 elements yagi except that you will add an additional parasitic element director which is about 5% shorter than the last element of the 3 elements yagi. Therefore 7 element yagi is chosen for the design and the results of antenna maker.
Yagi calculator is a free antenna design and analysis software for windows. The dl6wu yagi is highly regarded as being easy to build with repeatable results, broad bandwidth and a useful pattern. Yagi uda antenna calculator you may want to combine it with a folded dipole. Yagi antenna design data showing the relationship between element. On the other hand, yagis with as few as 8 elements have used the design and.