Wireless Networking Concepts for Horn Antenna- myassignmenthelp.com

Question: Discuss about theWireless Networking Concepts for Horn Antenna. Answer: This antenna consists of the flared metal waveguide that is formed similar to a horn to the direct radio waves in the ray. The horn is utilized as the antennas at the UHF as well as the microwave frequencies, which is above 300 MHZ (Bernardos, De La Oliva, Serrano, Banchs, Contreras, Jin Ziga, 2014). Additionally, this antenna are used for the feed antennas particularly for the larger structure of the antenna such as the parabolic antennas. Strengths The strength of horn antenna is the fact they cannot have resonant components, therefore they are able to use over an array of the frequencies. Additionally, there is the gain of the ranges up to 25 dBi, with the 10-20 dBi that is typical (Betz, 2013). There is also the advantage of the moderate directivity which is gain, a low SWR, as well as the presence of broad bandwidth. Weakness The weakness is that it has a high efficiency of over ninety percent. They are exhibit the large size at a lower frequency. Another disadvantage is the higher cost (Betz, 2013). There is a higher ground which is needed to achieve the good performance. Yagi This is a directional antenna which comprises of the numerous parallel components in a line that is half wave dipoles which are made from the metal rods. They include single driven component which are linked to the transmitter and even the transmission line. This antenna is popular as the high gain antennas on the HF, VHF along with the UHF bands Strengths and weaknesses Strengths They put a high gain to the omnidirectional antennas. This is because they have a beam width that are fifty to seventy degrees making them to receive a lower strength signals. Their high gains gives these antennas relative range (Betz, 2013). They have most gain for their physical size compared to the others. They are simpler than the log periodic antennas and they cost less as comparable to others. Weaknesses They have a limited frequency range. They experience a degradation to their electric features as one moves away from the frequency range. Cellular antenna These antenna are used in the conjunction with the signal boosters that are powered for example the inline amplifier or repeater that are connected to the cell phone or the device that have a cell phone adapter cable (Betz, 2013). Strengths and weakness Strengths They have an increased number of the users because of the nature of the frequencies that are reused thus allowing the increased number of the users. They have an increased range. As the antenna focus on the communicating devices the range of the operation increases consequently. Weaknesses They are very expensive since they are complex in utilizing of the current in processing technology which is more expensive than the traditional antennas. There is issue of location. There is need to consider on the location for the purpose of optimal operation. Based on the different merits presented above I think the antenna which will end up the prominent player later on of the medium as well as long distance wireless link is cellular antenna. The reason is that they have reduced interferences and there is increased bandwidth as comparison to the others. Moreover they have an increased range. Compare and contrast the multiplexing techniques CDMA and FDMA in the area of wireless networking? FDMA regards to the technique of diving a single channel or maybe the bandwidth into the several personalized bands, each suitable for use by one particular user (Betz, 2013). Every one of the personal band or even the channel are wide enough to have the ability to accommodate the signal spectra to ensure that the transmission to be propagated. CDMA: This is another pure digital technique. It is normally used in the spreading of the spectrum since it has the ability of taking the digitized type of the analog signal and spread it out over a considerably broader bandwidth utilizing a reduced power level (Rumsey, 2014). The following are similarity between CDMA and FDMA In both of these two method uses multiple access technology. These technique enable the users to access a single channels through the use of the system resource allocation such as on a given mobile user thus enabling the user to be able to establish the communication with the network (Rumsey, 2014). This happens because the spectrum has been limited therefore sharing becomes necessary to help improve the overall capacity of the geographical location. Differences In CDMA every narrowband signal is multiplied by what we refers to as the wideband spreading signal that is known to the code word whereas in the FDMA the bandwidth of the channel is relatively narrow (30KHZ), which is known as the narrowband system. Another difference is that in FDMA the provided bandwidth is put into a set quantity of the frequencies horizontally and just one frequency is allocated to a person user whereas with regards CDMA the bandwidth is not split into anything (Betz, 2013). The data could be sent to any specific frequency at any time and by any of the users. In the CDMA there is no fixed number of the users as in the case of FDMA technology (Betz, 2013). It is also important to note that the FDMA it is the analog technology and is the oldest whereas in the CDMA uses the 3G technology and is the current technology which is being used today. References Bernardos, C. J., De La Oliva, A., Serrano, P., Banchs, A., Contreras, L. M., Jin, H., Ziga, J. C. (2014). An architecture for software defined wireless networking. IEEE wireless communications, 21(3), 52-61. Betz, J. W. (2013). Signal structures for satellite-based navigation: past, present, and future. Inside GNSS, 8, 34-42. Gross, F. (2015). Smart antennas with matlab: principles and applications in wireless communication. McGraw-Hill Professional. Rumsey, V. H. (2014). Frequency independent antennas. Academic Press.