Wi-Fi Signal Boosters and Antennas – A Fabulous New Gadget

Wi-Fi is a fantastic new gadget, but its reach is only about 50 to 100 meters. Fortunately it is possible to build our own antenna cheaply (less than 10 US dollars) in an hour or two. Present days, more individuals, businesses and local governments are enjoying wireless internet access proliferating Wi-Fi hotspots, home, office, and public wireless networks. However, Wi-Fi users are rarely completely satisfied with the signal strength offered by the off the shelf Wi-Fi cards, routers, access points and USB adapters. Compounding to the coverage problems, many locate their routers, access points or desktop Wi-Fi cards in a closet, against the wall or under a desk, diminishing signal strength and limiting bandwidth.
Wi-Fi signal booster antennas, also called Wi-Fi signal amplifiers are attached to routers or access points to boost the signal. Good quality and powerful Wi-Fi signal amplifiers can increase the signal strength threefold. Bidirectional Wi-Fi signal boosters increase the strength of transmitted, as well as received signals. That is, they work both ways. They boost signal strength by as much as 600%. They can be used as laptop Wi-Fi signal boosters and extend range of Internet access far beyond your home. The need for seamless, uninterrupted and reliable communication is one of the top priorities of every house. The wide access to some really useful information base, for every kind of user makes it extremely important to set up a repeater, which delivers high performance.
Repeater is a networking device which, as the name suggests, repeats the signal or increases the reach of the existing wireless network. Very often, it happens that a device has to be connected to an existing wireless network, but it is away in a remote place in the house or a building, where the signal strength is too low or unreachable. A wireless repeater is used in such cases to boost the signal strength or simply repeat the signal so that the said computer comes under the coverage area. Wireless signals are susceptible to a lot of data loss. When it comes to the wireless signal strength that will be received, the topography of the place where we stay is also a deciding factor. If a large number of trees or buildings come in between laptop and the router we are connecting to, the signal strength will be almost zero. Besides everything, the wireless network cards, that come inbuilt, have very limited power and range. The answer then lies in using a wireless signal booster. A simple solution is getting a wireless card with a higher power or attaching an external USB antenna to the laptop. Wireless signal boosters are simple devices and can simply be plugged into the USB port of your laptop. The taller the antenna of your wireless booster, the better the reception. The working of the wireless booster is pretty simple. It accepts strong signals from the router and amplifies them inside your network, thus increasing the signal strength to a great deal.
A wireless signal booster consists of two antennas – the transmitting antenna and the receiving antenna. The receiving antenna is connected to an intermediate amplifier. The other input to the intermediate amplifier is a radio signal source. The intermediate amplifier amplifies the difference between the two signals; the received signal and the radio signal, and passes it over to a low-noise amplifier. This is done to remove any unwanted signals. The low-noise amplifier is connected to the transmitter. The low noise amplifier further amplifies the received signal and sends it to the wireless card. The wireless signal antennas in the laptops are located internally. Generally, there are two parallel antennas located on the two sides of the LCD screen. The internal location of the wireless antennas causes bad reception of the wireless signals. So, the first problem that a wireless signal booster needs to solve, is to provide an external high gain antenna. This antenna needs to be directed to the access point. The biquad is defined as a high gain antenna with an exceptionally large beam width. The problem faced with high gain antennas are the beam width that the antenna is capable of.
The Aim is to design different Wi-Fi booster antenna and analyze the performance to improve the signal strength for long distance. To overcome drawbacks of existing technology such as
Manually Designed Wi-Fi Cantenna and its Testing in Real-Time Environment
• The High Cost of booster Antennas available in the market
The booster antennas available in market costs very high in dollars and are easily available in foreign countries. This adds to the cost of travelling or shipping the product to the user destination. This aims at increasing the number of access points but in spite of these there are some hot spots or locations where the range is not available because of which we receive weaker signal strength. It provides us with improved signal strength. To achieve this, we need to study the various parameters of booster antenna available in the market, and increase the signal strength thereby improving the performance of our antenna.
The Work can be done on Real –Time basis by testing the performance of Booster antenna in the campus at locations where the signal strength is weak. The proposed plans of work for booster antennas include:
• To Design different booster antennas and then analyze their performance to increase the signal strength (Manual building and software based testing).
• To Implement Wi-Fi monitoring application.
• Test booster antennas for internet connectivity.

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