With the gradual decline in the price of wireless products, many people have built wireless networks in enterprises or at home, which greatly facilitates daily applications. However, the home area is larger, the distance between enterprises is farther, the wireless network is unstable, the data transmission is blocked and other technologies are beginning to appear. How can we solve these tricky technologies?
The cost of replacing network equipment is too large, which does not conform to the consumption concept of economic saving. However, replacing and installing a booster antenna is an extremely economical way to enhance the transmission capacity and stability of the wireless network.
1. All kinds of contact
Wireless antennas can be divided into omnidirectional antennas, directional antennas, sector antennas, flat antennas and other types.
Among them, the omnidirectional antenna is suitable for occasions where the wireless contacts are relatively close and a large number of wireless devices and clients need to be covered, but the gains of these devices are mostly small and the signal transmission distance is short.
Directional antennas include Yagi directional antennas, angular directional antennas, and parabolic directional antennas. They are suitable for environments where the wireless contact points are far away, and the wireless access points are concentrated, small in number, and fixed in locations. This kind of antenna has the characteristics of long signal transmission distance and strong energy gathering ability.
The sector antenna can cover multiple angles. If the wireless access point is concentrated in the coverage area of the antenna, consider purchasing this type of antenna, which has energy orientation and convergence functions.
The angular range of the panel antenna can be divided into 30 degrees and 15 degrees, which is smaller than the signal coverage of the sector antenna, but it has a stronger energy gathering ability and can be used in a relatively remote and more concentrated environment of wireless access points.
2. Detailed explanation of mainstream antennas
Among the many different types of antennas, many companies and individuals use omnidirectional antennas and directional antennas, and they are also the antennas that I would like to recommend everyone to use.
●Omnidirectional antenna
The so-called omnidirectional antenna refers to an antenna that has no maximum direction for radiation and reception on the horizontal plane. Due to the non-directional radiation and reception, this type of antenna is more convenient to install, and there is no need to consider the antenna installation angle technology of the transmission point.
However, the omnidirectional antenna has no maximum direction, and its antenna gain is relatively low, which results in a short transmission distance of wireless signals. Therefore, this type of antenna is generally more suitable for use in a point-to-multipoint communication environment where the transmission distance rules are not too high. For example, using this type of antenna on the central wireless AP of a peer-to-peer network and a wireless roaming network, through the central wireless AP, wireless signals can be evenly transmitted to all corners of the network.
●Directional antenna
The directional antenna has strong directivity, so the energy is concentrated, the gain is relatively high, the signal transmission distance is relatively long, the anti-interference ability is relatively strong, and it is more suitable for long-distance point-to-point communication. There are advantages and disadvantages. The disadvantage of a directional antenna is that its signal coverage is small, and the antenna is more difficult to install and adjust. The antennas of the two transmission points must be aligned with each other to ensure signal transmission.
In general, if there are only two computers in the wireless network environment that need to communicate wirelessly, or the computer needs to communicate wirelessly with a wireless router or wireless AP, then a directional antenna is the best choice. Because the computer at this time uses a point-to-point wireless transmission method, the use of a directional antenna can completely allow users to obtain excellent wireless transmission quality.
In addition to the above content, when judging or purchasing a certain antenna, you must also understand the operating frequency of the antenna. Antennas with different operating frequencies are suitable for use on different wireless devices. For example, only antennas operating in the 2.4GHz frequency band can be used by those 11Mbps or 54Mbps wireless products. At the same time, the antenna has the difference between indoor use and outdoor use, which also needs attention in practical applications.
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