How to make a directional Wi-Fi antenna
Wireless Internet is everywhere today. And most of our computers are able to perceive them. However, the signal power is sometimes not enough to just connect, not to mention the full surfing in online space. Antenna-feeder devices of various types come to the rescue. This trend is becoming increasingly fashionable and in demand, because simple equipment can enhance the weak Wi Fi signal several or even tens of times. What is the secret of technology? Let's look together.We will make a reflector from the side wall of the power supply case from a computer that has already served its purpose. We mark the middle on a tin rectangle by means of two diagonals. Part of the bottom of the case is left for the stand, and we cut off a piece of tin.Drill a hole in the center of the reflector with a suitable drill. The antenna body should fit in it freely.Sanding a protective coating around the hole with sandpaper, and soldering it with flux. This procedure must be done on both sides of the reflector.Disassembled antenna rod metal. It also needs to be zaludit, to subsequently solder to the reflector.Insert the antenna stem into the central hole in the reflector, and solder it on both sides.
How it worksSomeone may be surprised, but there is nothing fundamentally new about this antenna. The original invention of a bipolar antenna was proposed by Kharchenko, a radio amateur engineer. back in 1961. It was intended then for capturing waves in the UHF band, when television and radio broadcasting appeared in it. The antenna consists of two squares connected at one of their peaks by separated sides. Nowadays, this device has become adapted to Wi Fi modems and routers for receiving and transmitting signals from the Internet network. It consists of a reflector and a vibrator that can amplify a signal of a certain frequency, and even be an access point, i.e. distribute it to several consumers.
What you need for a homemade antennaMaterials: Power Tools: Screwdriver , soldering iron and glue gun. Otherwise, for this homemade you will need the usual tools of a home craftsman: pliers, nippers, a knife, a set of screwdrivers, a ruler and a pencil.
Make an antenna
Step one - prepare the antenna, make a reflectorFirst, unscrew antenna from the adapter housing. Release the antenna from the rubber sheath, cutting it off with a knife at the risk at the base.
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Step two - make a frame vibrator for the antennaThe frame for our antenna will consist of a single piece of copper wire. Its dimensions, according to the author, must be respected up to a millimeter. To begin with, bend the base-leg of the frame. Its length is 16 mm. The sides of a square with a length of 30.5 mm should also be the same. Bend them gently with pliers, trimming the curvature of the bends.
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