Feb 9, 2017

An Overview About Directional Antenna And Its Advantages

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.

Mostly, the antennas may also have the ability to help in the reduction of interference from various sources. And thus, making this directional antenna to be the most ideal and the most popularly used in most areas wherein interference are a lot in number. The most common examples of interference a are the transmitting devices but these would also include weather conditions, microwave ovens, and other obstructions.

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 are usually important when setting up the directional antennas. At times, having the wrong directions cannot really be avoided, and as a result to this, the rendered antenna would become useless. So the best suggestion would be checking first the areas prior to the installation process. Determining the antenna type through this since you know already on the potential interference and obstruction sources.

The direction to which the device is being pointed is another important factor that you need to consider. This device is said to be very effective if it will be pointed towards the source of the target signal which is very near to it. This signal has the least interference and obstruction amount. This is the very reason why the process of mounting is considered a big issue.

Usually, because there is only one general area is being focused, the coverage becomes limited. So when the device will be used in areas where there should be a large coverage, it may become less effective. And that is why an omni directional type of antenna is being recommended for larger areas. This type has the ability of receiving and transmitting signals in 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 very common advantage is the security issue. With these devices, wormhole attacks can be prevented. The attacks would mean that the packet is being forwarded from the attackers by high quality out of band links then replayed to other locations. For this reason, communication disrupted.

Lastly, deafness is a common limitation. Usually, deafness happens if the devices will not be used. Limitations in network performances are also possible. Multiple retransmissions may cause the nodes to be misunderstood between connections because of the triggered mobility and route search, thus, distracting interactions between upper layers.




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