Sunday, November 4, 2012

Analysis of WiFi Antenna

Introduction of WiFi and WiFi Antenna

WiFi is widely used in our daily life, because the rapid development of wireless networks at present, antenna and its applications are getting better and better. WiFi make use of a short-range wireless transmission technology. When you come to a coffee shop, or even a restaurant, you can also find the WIFI logo. The wifi antenna are often used in these places. The WiFi antenna has different shapes, sizes and materials, and the specific process of the WiFi antenna. Compare the performance of WiFi antenna with the antenna system. The computer does not have an internal wireless network to connect to a wireless network, when we need to use an external antenna. Without this antenna, computer users cannot connect his own computer to the modem to access the Internet by using a network cable. If your computer does not have built-in WiFi antenna, then you must install an external WiFi antenna to your computer.

wifi antenna
The Advantages of WIFI Panel Antenna

There are many various kinds of WiFi antenna in the market. A wifi panel antenna is a parabolic reflector, the parabolic cross-sectional shape of the curved surface, in order to direct the radio wave, antenna is established. The most common type of shaped like a dish is commonly known as a dish antenna or parabolic. The main advantage of the panel antenna is that it has a high directivity, the narrowest beam width. These provide some of the highest gains, and they may be generated. There must be much larger than the wavelength of the radio waves being used in order to obtain a narrower beam width, panel reflector, so the use of the radio spectrum in the panel antenna is frequent portion in the UHF and microwave. As a panel antenna, high-gain antenna has the point-to-point communications, in the application, such as a microwave relay link, telephone and television signals, wireless WAN / LAN connections for data communications, satellite communications and spacecraft communications antenna near the cities. They can also be used in the radio telescope.

Other Usages of WiFi Antenna

With the development of home satellite television channels, panel antenna has become a common feature in the landscape of the modern state. The extensive use WiFi antenna becomes also more and more popular, where there is a need to transmit radio waves in to the extremely narrow beam positioning objects, such as ships, aircraft and missiles.

This article is come from: http://www.storage-battery.com/index.php/analysis-of-wifi-antenna.htm

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