DIYHome-made 4G LTE 850 MHz Yagi-Uda antenna. My first simple attempt of creating an antenna to bost the signal of my mobile internet connection. At the countryside, were I live, the cell tower Havinghad success with my 6m Mini-Horse I decided to design one for 10m and at the same time find out the tuning required for anyone wanting to build one fo 2 Lower the yagi and trim off a short section of each end. I found that each inch of wire I trimmed off the end of each side would raise the resonant frequency about 100 Khz. The height of your yagi above ground and the surrounding objects may have a different influence. 3. Raise the yagi and check the resonant frequency. 4. Lower the yagi and Alldimensions are given in mm on the first figure. The antenna is a Yagi type antenna, so it is composed of one reflector, visible on the bottom part of the figure. The reflector is split in two parts, but its overall length is 98 cm. The main dipole on the middle of the photo has also two (hopefully) identical parts. TheYagi antenna that was built for this project was made from an aluminum sheet. The aluminum sheet was cut out using pliers and filed down to the specific dimensions. The driving element was shaped from a thin plastic sheet and then covered with copper tape. The Yagi antenna was built this way for two reasons: the aluminum pZ98D9.

how to build a yagi antenna for cell phones