Wi-Fi internet is the dream of many netizens. To implement it, you can purchase various devices, routers, adapters, repeaters, etc. in the store. The disadvantage of industrial products is the low signal power. This can be remedied by using a high gain antenna.
It is necessary
tin can, RF N-type connector, wire
Instructions
Step 1
A conventional antenna radiates a signal in all directions, a directional antenna transmits and receives a signal in a given direction.
On the Internet, there are many tips for making the simplest antennas to amplify Wi-Fi.
The most popular model is made from a conventional can, the size of which supports the 2 GHz wave. This Wi-Fi antenna works well at medium to short distances.
Step 2
Do not use cans with ribbed surfaces to make the antenna, as they cause wave dispersion. You will need a tin can with a diameter of 83 mm in and a length of 210 mm, an N-type RF connector with a locking nut 12-16 mm in diameter, a piece of wire 40 mm long (copper or brass) and a diameter of 2 mm, a standard set of tools: a ruler, pliers, a can opener, a soldering iron, a file, a hammer, a vice, and a cable with a Wi-Fi-USB adapter on one end and an N-type (male) connector on the other.
Step 3
Use a can opener to remove the top of the can and wash it with soap and warm water.
Drill a 12-16mm hole, depending on the diameter of the N-type RF connector, 62mm from the bottom of the can. File the edges of the hole.
Step 4
File the copper wire, heat one end of it, solder it to the N-type RF connector in a vertical position with a soldering iron - this is the active element of the Wi-Fi antenna. Its height should be 30.5 mm. Secure the N-type RF connector in the jar with the tightening nut and the connector itself. The antenna is ready. Its gain is in the range of 10-14 dBi, the beam coverage is 600.
Step 5
Also, a Wi-Fi antenna can be made from a conventional single-core copper wire with a diameter of 1 - 1.5 mm. One end of it is soldered to the connector or directly to the cable. After 61 mm from the beginning of the wire, a loop with a diameter of 10 mm is made, after 91.5 mm, another loop is made, then after 83 mm, the wire is bite off. The structure fits into a PVC tube. This antenna will have a gain of 5-6dbi.
