The resistance depends on the distance between the elements and on the ratio between the length and diameter of the material used.įigure 1: The structure of a Yagi antenna The gain of the antenna is about 6 dB, increases with increasing boom length and the number of directors, and reaches a maximum of about 20 dB. It offers good gain and good attenuation against signals coming from other directions. The elements can be mounted on the boom on insulators. The elements are assembled on a tubular or quadrangular section, which is called boom. The spacing between the directors usually ranges from 0.1 to 0.5 of the wavelength. It helps to achieve the desired gain and the directional pattern. It has a length that is 5% shorter if compared to the driven element. The director is the shortest of parasitic elements. This point is located at the center of the driven element. The dipole (or driven element) is the feed point where feedline is attached to the transmitter or the receiver. It also depends on bandwidth, gain, and F/B ratio. The spacing of the reflector from the dipole is about 0.1 to 0.25 of the wavelength. The length is usually 5% more compared to the driven element. The reflector is placed at the rear of the dipole. The Yagi antenna is a directional antenna (see Figure 1) that typically consists of three elements: To understand this article, a minimum knowledge of antenna theory and an experience of the 4NEC2 program or similar is required. The project shown here refers to the frequency of 433.92 MHz. This type of antenna is used for transmissions and receptions of electromagnetic waves. The calculations of the parameters are made using 4NEC2 software. Make step by step using diagram.This article describes the phases for the construction of a Yagi antenna.
Build yagi antenna plus#
15db theoretical plus a mast for a real world gain of 21db. I was getting 1 bar of signal and the corresponding dropouts poor performance and general frustration that goes with it. Use popsicle sticks to build the antenna s backbone and hold it together. A combination of crystal oscillators voltage control oscillators frequency multipliers signal mixers etc. The most complete version of the 4g booster can be found on this video link diy homemade 4g lte 3g hsdpa edge gprs internet booster.Ĭonnect the usb device to the antenna. It could support 4g 3g networks frequency bands as below. You can use it for increase signal strength. Trim paper clips to size and glue them to the template. This is high gain 4g lte yagi antenna for outdoor use. Here i document the process required to build a 4g lte yagi antenna using the construction techniques described in w6pql s article. In this video we make powerful 3g and 4g antenna. Lte antennas are more than a piece of wire stretched between two trees. I used a yagi modeler java applet to generate the diagram. If you want to diy the 4g outdoor antenna please contact us to provide detail requirements. His techniques are simple and achievable with relatively common hand tools.īuild out of my yagi uda antenna tuned for the att 4g lte b17 band. The 4g antenna could be connected with terminals with suitable connectors the 4g directional antenna provides three connector type. Watch more related.Īt the countryside were i live the cell tower uses 850mhz for the lte connection. Its a homemade very cheap and easy projects.
Build yagi antenna download#
Print out the scaled yagi antenna template download from next step. If you have any confusions visit the link below.
Build yagi antenna full#
It work almost 95 constant full signal to boost the huawei modem e5377 4g lte. Inspired by these references i decided to build my own yagi antenna for the verizon 4g lte bands. Basic purpose of this diy antenna is to boost signals by picking up from strong signal area to weak signal area. Ke Toko Antenna In 10 Steps For 10 Cell Phone Antenna Cell Phone 747 787 mhz 4g lte yagi antenna in 10 steps for 10 by damon chandler dmc271 a detailed step by step construction of a 747 787 mhz us 4g band 14 element yagi using a metal boom and a folded dipole for the driven element.Ĥg lte yagi antenna diy.
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