Analysis Of C-Band, Ku-Band And Ka-Band For Satellite Communication In Malaysia

Sazratulasma , MD Saad (2007) Analysis Of C-Band, Ku-Band And Ka-Band For Satellite Communication In Malaysia. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This case of study is to perform the analysis between Ku-band, Ka-band existing C-band in Malaysia according to their link budget (downlink from satellite to earth station) based on the system of the Very Small Aperture Terminal (VSAT). The analysis is based on the ITU-R model in term of the attenuation causing by atmospheric gases and rain and prediction is done by using MATLAB programming. Modern satellite communication has been made possible by combining skills and knowledge of space technology. But today, the signals many have losses according to our climate (Tropical Region). In some situations, part of the optical channel travels through the atmosphere that occasionally contains water vapor, rain as part of the communication channel causing signal power attenuation and temporal widening. In this analysis, Kuala Lumpur, Alor Setar, Kuantan, Johor Bahru and Kota Bharu are selected in term of different geographical and rainfall rate. Attenuation due to rain is higher at Ku-band (14/12 GHz) compared to C-band (6/4 GHz). Similarly, the attenuation due to rain at Ka-band (30/20 GHz) is 468.921dB is higher compared to Ku-band (14/12 GHz) is 105.7177dB and C-band (6/4 GHz) is 39.6165dB for 2006. For the frequency scaling, the overall analysis for 8 GHz, 12 GHz and 15 GHz Simple Power Law model can be used to scale the frequency. While, for 23 GHz, Battesti model has an experience in scale the frequency.

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