Strictly Necessary Cookie should be enabled at all times so that we can save your preferences for cookie settings. If you disable this cookie, we will not be able to save your preferences. This means that every time you visit this website you will need to enable or disable cookies again. Sonsuz tesekkur ediyorum Reply. Credits Thanks to Frank Schindler for the curve fitting code used by this program, you can see his page here. Download Parabola. If you find this program useful and want to support program development, I accept small donations.
Thank You. After you enter some numbers into the Diameter and Depth text boxes and click the Calculate button, the program will show you the scaled down shape of the parabola you described, and it will calculate the x, y coordinates of the curve of the parabola in 16 straight line segments. You can calculate the x, y coordinates using anywhere from 2 to segments. To see what the shape and focal length would look like when the depth is increased to 18, hold down the horizontal scroll bar next to the text box and watch the parabola's shape change.
If you click the Save to Text File button, the program will prompt you to select a folder and enter a filename, and then it writes a file with the information you see in the text box on the right. Here's how the saved file looks when it is opened using Windows Notepad using the Lucida Console non-proportional font where all characters have the same width so the columns line up vertically.
Book chapter : Duffie, J. Beckman, W. The main goal for this assignment is to understand how to estimate concentrated image parameters using model diagrams 7. Please answer the following quick questions to check your understanding of some of the basic points in this section. What is the key optical property of a parabolic mirror that allows for high ratio of light concentration?
Skip to main content. Figure 2. Geometry of the parabola. Geometry of a parabolic reflector. All rays parallel to the parabola axis are reflected through the focal point. Corresponding variation of the parabolic curvature and focal distance for a fixed aperture. Parabolic trough mirror installation on a solar farm.
Credit: Kuraymat via Flickr. Beam reflection in an imaging parabolic concentrator with aperture a. Blue area imitates the position of a cylindrical tubular receiver at the focal point.
Through obtained results, you can easily design an optimum shaped antenna. In most software, you can either directly Print the final result or save the result as PDF format. Yagi Calculator is my favorite software because it provides more detailed results compared to other software. Plus, its ability to calculate gain for a single as well as for two Yagi antennas is also impressive.
Yagi Calculator is a free antenna design and analysis software for Windows. Using this software, you can design and build your own Yagi antenna. This software can not only be used to design but also to find out antenna gain, stacking distance, and Standing Wave Ratio SWR.
In this menu, you need to submit values of multiple parameters like Frequency , Diameter of a dipole , Dipole gap , Number of directors , Cross-section of the boom , Type of reflector round, square, and flat ribbon , Coax type , etc. Once you have entered all the input parameters, press the Calculate button to get the result.
In the result, you will get output values of many important parameters like Reflectors length , Gain , Spacing , Diameter , etc. Plus, other important parameters like Wavelength , Boom position , Single and folded dipole tip to tip distance , etc.
Using these analysis results, you can easily design a Yagi antenna without much hassle. All these menus can be accessed from the Task drop-down menu. The results of each section can be saved separately as PDF. Overall, it is one of the best antenna design software as it can calculate almost every parameter of a Yagi antenna which makes the antenna designing a lot easier. It is used to design J-pole antennas for the desired frequency. J-Pole antenna is pretty easy to build and usually designed by amateur radio operators.
Through this software, you can easily find out four important parameters to build this antenna namely, Radiator length , Driven Stud length , Gap space , and Feedpoint. To get antenna parameters, first, enter the desired frequency for which you are designing the J-pole antenna and then either press Inches or CM button. A J-Pole antenna diagram with related parameters is also available on the interface to further help you design the antenna.
In this freeware, you cannot save the parameter values, but you can still copy the values to the clipboard and save it as a text. This software also has a multiband J-pole configuration section with a sample diagram of a multiband J-pole antenna with various parameters. This diagram may help you understand the design of a multiband J-pole antenna better. Parabolics is another free and portable antenna design software for Windows. As its name implies, it is used to design parabolic antennas.
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