Long Range Wi-Fi Antennas

Long range wi-fi antennas are the driving force behind long range wi-fi networks. An antenna is a device that transmits and receives electromagnetic signals. A transmission antenna converts alternating voltage electrical signals into electromagnetic waves and a receiver antenna converts electromagnetic signals back to electrical signals. A long range wi-fi antenna is used for providing internet connectivity, or wireless connectivity, between two geographically separated, distant points. Long range wi-fi antennas can pick up network signals from distant networks and thus bring the Internet to your home, no matter where you live. These type of antennas are often needed to increase the range of one's installed wi-fi system.

What is Wi-Fi?

Wi-Fi, short for wireless fidelity, is a certification standard issued by the IEEE (Institute of Electrical & Electronics Engineers, Inc.). Colloquially, it is also used to refer to Wireless Local Area Network (WLAN) technology. It is a technology that provides wireless internet access through a radio link, and has enabled people to access the internet on the move. The working of a wi-fi network is a subject which cannot be explained simply. Let us just focus on understanding long range wi-fi antennas.

Types of Long Range Wi-Fi Antennas

Long range wi-fi antennas are like any other antennas in their basic function. They, however, differ in structure, as they have to transmit high quality signals over very long distances. Their power output needs to be very high. Also, not only must they deliver a strong signal, they should also be precise in their transmitted target location. In other words, the signal should not spread out and should be delivered pin pointedly. Therefore, these antennas are mostly directional antennas. They come in various types. Let us take a look at each type.

Directional Type Wi-Fi Antennas

A good example of a directional antenna is the Yagi antenna. This type of antenna is a vertical dipole array. A common TV receiver antenna is a good example of a Yagi antenna. It consists primarily of three elements which are the reflector, the driver and the director. Additional parasitic elements are attached to improve signal quality. They are small and lightweight. These come with a varying number of parasitic bar piece elements ranging from 11 to 16 or sometimes more. Dual Yagi antennas are also available. Their typical transmission frequencies range from 2.4 Ghz to 2.5 Ghz. These antennas provide connectivity at distances greater a mile to many miles depending on power output and gain.

Other types of directional wi-fi antennas are the panel, the dish and the backfire type antennas. These type of antennas are generally used to establish point-to-point wireless connectivity.

Omni Directional Long Range Antennas

These type of antennas are used when one wants one point to multi-point connectivity. These kind of antennas distribute the electromagnetic signal over all directions and thus spread the signal. They are ideal for use in an office or workstation where connectivity is needed at multiple points within the place. Examples of this type are the rubber duck, vertical omnis, laptop connected, and mobile vertical antennas.

How to Choose a Long Range Antenna?

As it can be seen, there are many options available if one wants to purchase a long range wi-fi antenna. How does one decide which kind of long range antenna will suit him best? The choice can only be made through practical considerations. First and foremost, calculate the distance over which you need to transmit the signal. The range is the most important deciding factor. Some people even design their own home made wi-fi antenna. For that you should be willing to tinker with things on your own and have an in-depth practical knowledge of antenna theory.

Then, knowledge of the power output of your base WLAN system whose range you are trying to boost is essential. If its too low, the gain of your long range wi-fi antenna needs to be more. If you want steady directionality, distance and large gain, go for a dish antenna. If you want a lightweight, robust antenna, go for a Yagi antenna. Also consider other factors like convenience, compatibility, pricing as well as the type of connection (point-to-point or point-to-multipoint) before making your choice.

Long range wi-fi antennas are essential if one needs to transmit network signals over a long distance. These antennas help exploit wi-fi technology, making its use available in even remote areas and providing internet access on the move.