An Overview And The Advantages Of A Directional Antenna

By Richard Richardson


This is one kind of an antenna that will radiate power either in one or in a lot of directions. With this, capability, it will generally be allowed on maintaining to increase the performance to transmit and to receive transmissions. Its strength is also being focused and the power is transmitted in only one direction in general, and thus, resulting to an optimized signal strength and minimized signal loss.

Most of these antennas have their ability as well on reducing the interference coming from many sources. Thus, making a directional antenna become the most ideal and popular for use in areas where there are many interference. The interference may usually include some of the transmitting devices such as for weather conditions, some other obstructions, and microwave ovens.

These kinds of antennas are being classified into 2 different types such as the log periodic and the corner reflector. Usually, directional antennas are combined and commonly made available for use as television antennas, specifically designed for in most residential areas. Being used as cellular repeaters is another common purpose. This is used to receive and to transmit signals that are normally out of range for other cellular phones.

Antenna directions usually are very important for the set up directional antennas. When there is a wrong direction, the abilities an antenna has can be rendered useless. So it would better for areas to be checked first before starting the installation process. Through this, you can know what type of antenna will be used since you already know the potential sources of obstruction and interference.

The direction where the device is pointed to is an important factor to consider as well. It must be directed towards the nearest target signal source for to become more effective. This target signal should have the least obstruction and interference. Because of this, this mounting process becomes a big issue.

And since there is one general area only is focused, there will be some limitations in the coverage. So whenever the device is intended for use in larger coverage, the disadvantage is becoming less effective. Because of this, the omni directional type of an antenna would be more preferred in larger areas. The omni type has the ability to receive and transmit the signals into several directions.

The best areas for the installation are in outdoors or other open areas such as outside the home. Usually, closed spaces have more obstructions which can generally limit its effectiveness. However, before purchasing these antennas, make sure to consider importantly the advantages and limitations.

One common advantage of this is for security issues. These devices can help in preventing wormhole attacks. These attacks mean that a packet being forwarded from attackers through higher quality out of band links and the packet is then replayed in other locations. Because of this, all the communications maybe disrupted.

Lastly, one common limitation could be deafness. This usually happens when devices are being used. Network performances will become limited. There are also multiple retransmissions causing the misunderstanding of the nodes between connection since both the route search and mobility are triggered, thus, interactions between upper layers are distracted.




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