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COMP 101-Types of Antenna | wireless networking

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Franklin University

   

Wireless networking (COMP 101)

   

Added on  2020-03-04

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The below document discusses different antennas, such as yagi, horn, cellular antennas, etc. have different merits. It also analyse each  technologies in detail and pay specific attention to how they are used as well their strengths and weakness. The document  discusses Compare and contrast the multiplexing techniques CDMA and FDMA in the area of wireless networking.

COMP 101-Types of Antenna | wireless networking

   

Franklin University

   

Wireless networking (COMP 101)

   Added on 2020-03-04

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2017Wireless Networking[ T Y P E T H E C O M PA N Y A D D R E S S ]
COMP 101-Types of Antenna | wireless networking_1
Table of Contents1.Questions:-....................................................................................................................................3Answers:- Types of Antenna..................................................................................................................31.Horn Antenna............................................................................................................................32.YAGI Antenna.............................................................................................................................33.Log Periodic Antenna.................................................................................................................34.Sector antenna..........................................................................................................................35.Parabolic Reflector or Dish Antenna..........................................................................................32.Questions:-....................................................................................................................................3Answers:- FDMA versus CDMA..............................................................................................................33.Questions:-....................................................................................................................................5Answers:- Latest, Emerging Wireless Technologies...............................................................................51.Wireless Fidelity (WiFi):-...................................................................................................52.LiFi (Light Fidelity):-...........................................................................................................63.WiMAX (Worldwide Interoperability for Microwave Access):-............................................64.Bluetooth:-...........................................................................................................................65.GI-Fi:-....................................................................................................................................6Bibliography...........................................................................................................................................7
COMP 101-Types of Antenna | wireless networking_2
1.Questions:-Answers:- Types of Antenna1.Horn Antenna: - Horn antennas are viewed as flared waveguides. They couldattempt more conveniently as a consequence parabolic reflector as construct in dishantenna. Horn antennas are working with satellites or microwaves application. Awaveguide normally used for transferring of EM wave it shall not closely connectedwith free space impedances and which results in the reflecting power and the standingwave. The mismatch is abstained by flaring the end of waveguides that create thehorn antenna. (Antenna Types, 2016)2.YAGI Antenna: - These antennas were mainly working with the TV receptions,they are suited for wide frequency range hence they are designed for one frequencyonly. These antennas are made up of the one driven element and the one reflector andthe one or more directors. These are built by the aluminium tube and the aluminiumcross members. Yagi antennas have bandwidth in ranges of 30 to the 80 degree whichmay provide well in the excess of 10 dBi passive gains. (Antenna Types, 2016)3.Log Periodic Antenna:- The main advantage of the log periodic antennas is itsbroad bandwidth applications. These are constructed by the differents length drivenelement. The long range and the short range element is of half wavelength long atlowest and the highest density of interests. The element of these antennas are fedwith the transmission lines segment. The different state of indications is sent to thedifferent elements are to be properly set up to attain high directivity and the best gain.(Antenna Types, 2016)4.Sector antenna:- Semi-directional antenna is the another form of sector antennas.These antennas proffer an pie-shaped radiation patterns which is occasionallyinstalled in what are called as the sectorized array. The bandwidth of the sectorantennas could be in range of 60 to 180 degree with 120 degree being prototypal.Sectorized array antennas are attached back to back to provide the full 360-degreecoverage. Sector antennas are used greatly for the cellular communications. (AntennaTypes, 2016)5.Parabolic Reflector or Dish Antenna:- These antennas is used in parallelismwith the horn antennas which is basically made up of metal or the screen mesh. Whenthe transmission commence EM waves falling onto the wide dish and get radiated intothe air during receptions EM waves fall onto dish and get focused to horn antenna. Aparabolas are like symmetric curves; parabolic reflectors are a surface which describethat a curve throughout in 360-degree rotations. Parabolic antennas has a verycompresed beam width, usually not outreaching 25 degrees. Parabolic antenna is workwith for the long distance communication links between the buildings or over thebroad geographic areas. Large parabolic antennas are used for the radio astronomyand that could provides a gain of 10 million or about 70 dpi. (Antenna Types, 2016)The future of medium- and long-distance wireless linksBroadband Dipole Antenna: Broadband Dipole antennas are basically used for bothshort distance, medium distance and Long distance communication. Its propagationranges from 1.5 to 30 MHz frequencies.
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