Network DIY system to do wireless network gain antenna

When you are using a wireless network, you are sure to experience wireless network signal quality problems. To solve these problems, in addition to reducing the shielding, reduce the interference of the same band equipment, the most effective way is to replace the high gain antenna, with the antenna to enhance the transmission effect of wireless network, coverage. However, the purchase of wireless gain antenna needs to take out a lot of silver, may cost hundreds or even thousands of dollars. Love DIY friends, can take advantage of 11 Golden Week opportunity, at home to make wireless network gain antenna, to help improve the quality of home wireless network communication, you can also learn a lot of DIY knowledge.

How the gain antenna works

Don't rush to make it, before you do it, we have to understand the basic principle of the wireless gain antenna. Only with a certain theoretical basis, we can make an excellent effect antenna.

Keywords: parabolic, focus

for the gain antenna working principle is more popular saying is: In the existing antenna around the regular metal parabolic surface, so that the antenna is located in the parabolic surface of the internal reflection focus, through the electromagnetic waves reflected in the focus of the formation of energy concentration, thereby enhancing the electromagnetic signal transceiver, To achieve enhanced signal in a specific direction.

The key to making a simple gain antenna is to find a more regular metal parabolic surface and compute the focus position of the parabolic surface. Metal paraboloid does not necessarily require the use of metal plates, can also be mesh, palisade-shaped metal materials. The determination of the focus position needs to be calculated according to the shape of the selected parabolic plane.

Calculates the formula: f=dxd/16h (m)

wherein, D is the diameter of the parabolic surface, H is the depth of the parabolic plane, and the unit is M. The

can be computed with a simpler estimating formula, that is, f=0.3d~0.4d, given the existence of a certain error.

In a simple Wi-Fi wireless network, including wireless routers or wireless APs, as well as wireless network cards. Therefore, to enhance the efficiency of wireless signal transmission, from the increase of wireless router or wireless AP Antenna transceiver Gain and wireless card transceiver gain two aspects to start.

Next, let's look at the method of making the gain antenna of the wireless router or wireless AP and the method of making the wireless network card gain antenna.

can variable wireless router gain antenna

Improve the transmission efficiency between wireless devices, first of all to consider increasing the wireless router (wireless AP) antenna gain, without replacing the existing equipment antenna, the best way is to modify the existing antenna to gain antenna, In order to improve the wireless router (wireless AP) Antenna transceiver efficiency purposes, and thus improve transmission distance and speed.

Keywords: parabolic, focus

Making materials: Metal drums, existing wireless router antennas

AIDS: Scissors or saws, rulers, calculators, paper, pens

First step, find material

The current common wireless router or wireless AP antenna is generally linear and vertical Upwards, taking into account the need to look for a barrel-shaped metal vessel, the material need not be too hard to cut according to the situation, and not too heavy to avoid increasing the difficulty of fixing.

However, smart you may immediately think of milk barrels, mobile phone drums, cans and so on, these are the production of wireless router (wireless AP) gain antenna good material.

The second step, cutting metal drums

The metal drums are vertically cut according to the length and position of the existing antennas of the wireless router (wireless AP), leaving a bottom surface for easy fixing. In order to make simple, it is recommended to use the soft cans directly, using scissors to cut the cans into two symmetrical parts, the side is divided into two parts equal.

In the third step, the focus position

is applied directly to the formula described above, and then the appropriate movement is required to find the best location point. Wireless network card can be used with the software to measure, select a good focus can be fixed.

Step Fourth, fixed metal barrel

In order to fully play the cutting metal barrel to increase the antenna gain in a particular direction, the linear antenna must be uniformly fixed at the focal point of the cylindrical parabolic surface of the metal barrel. After selecting a good focus position, in order to facilitate future use, it is necessary to make the metal barrel and the antenna relatively fixed. The fixed method can give full play to your intelligence. In short, the use of non-metallic materials fixed. The following is the use of tape to fix the effect of the picture.

After four steps, the most simple wireless router (wireless AP) gain antenna is made, the antenna toward the location of the wireless card, immediately detect the effect of how it. The

Method summarizes: This method is based on the above we introduced the basic principle of making gain antenna, the wireless router (wireless AP) of the original antenna modified to a better gain antenna, the key is that they must choose the right metal parabolic material, calculate a good parabolic focus, its characteristics are simple , 0 cost.