To keep the performance even in the band edge, put the band edge frequency as well. The combination Stub match is calculated using the following parameters; ZL for the load antenna impedance, Zo for the feeder impedance of sections L1 and L2, and Zi for input impedance to the radio or transceiver. This tool enables comparisons to be made of any previously stored calculations. You can select one of the steps and get it back to the optimization window so that you can manually pick out the optimization result you think best. Set the target to the matching circuit and star the optimization. If you put 0 to the association box, the parameter changes freely as an independent variable. 
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MMANA-GAL download
However once this done it italoano impossible to revert back to the original design, i. The HF components pop-up window for the antenna matching cab be found under the Tools option on the Tool Bar. The number of file names shown in the File drop down menu. To save the pattern in bitmap formant, push the Alt-PrintScreen button on the keyboard.
Check this box to display the segmentation points. This is a combination of a shorted stub and an open-stub connected in parallel at the feed point to match the Input impedance Zi. If not, the absolute position of the element is used. If the specified wire changes its coordinates, the connected wires also changes together to keep them connected. Vertical current components are shown in Red and horizontal currents in Blue.
Wire definition Define mmaja wires that compose the antenna: For antennas that use phase driven elements e. This function is used to reduce the number of otaliano places that are shown for the dimensions and calculated values. This method should be useful for the fine-tuning.
You can run the optimization in one window and design an antenna in the other window. It records the optimization history, with which you can retrieve the previous optimization results.
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Even if you specify equal segmentation, the actual segmentation will not follow this rule because of the element's construction. Check this box to superimpose the current distribution on the antenna wires. Any value between 0 and can be used. Click on the Geometry Tab, this has a an antenna definition tool in a table format like a spreadsheet.
Unit of R is Ohm. Push the Band setting button to get the dialog box, with which you can specify the band frequency and the source. This is called the wavelength mode.
L should NOT have a much larger loss dB than C, consequently the value L uH should be kept as small as possible to maximize efficiency. This is because ita,iano the stack has been created using the Make new description as new antenna button, there is no way to undo the result.
It shows up to latest steps of the optimization. You may change the value as you like. The Q-match section calculates the lengths of the two series-section transmission lines, when the TUNE button is clicked with the mouse. Note that in the 3-D view window, you only can add a new wire that is connected to another existing wire.
Please note that the template can used on its own to design any single layer coil by entering the required values in the various fields. This method can be used to move the center wire of hentenna or tri-hat antenna. Typically HF Yagi antennas are made with two or more telescoping sections of different sized tubes to reduce droop of the antenna and reduce its wind resistance.
Input a value manually to other fields.
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The wire already registered as a variable is shown in red. The lengths are those that will result in a minimum SWR with respect to the input end Ri.
The tool can be used to enlarge or reduce the size of the antenna.
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