LPDA Antenna for Australian phone frequencies

thingiverse

Wideband directional antenna operating in 700Mhz to 2200Mhz frequency range. It covers Australian 3G and 4G frequencies nicely, but check with your provider first if you plan to use it. A 4NEC2 file is provided along with FreeCAD so you can customize the design according to your specific frequency band needs. Make sure you have at least version 0.19 of FreeCAD installed. The antenna consists of parts that click together easily and can be secured in place using glue or a hot soldering iron. A minimum printing bed size of 140x140mm is required for this project. Only half of the arms and slots are used, while the other half remains empty just like on the pictures. The metal parts can be made from copper wire or tin wire as shown in the photos. The end stub should be disconnected and left hanging loose most of the time, which typically results in better performance. This design is inspired by a similar project found on Thingiverse at https://www.thingiverse.com/thing:3221812, which also includes more details about construction. If you have any questions or suggestions, please feel free to comment below. We'd love to hear about your results and creations!