Design Of Powe Budget CalculatorFor Satellite Communication Link

Abstract

Satellite link design is nothing but estimation of power that is to be transmitted from an earth station towards the satellite or from a satellite towards the earth station, so that the study and calculation of power budget is reasonable. This link design calculation takes into account several factors such as look angel, absorption of signal , various kinds of noise sources in the satellite system , parameters of transmitting and receiving antennas of both the satellite and earth stations (e.g: effective area of antenna (A0), Equivalent isotropic radiated power (EIRP)) and also uplink and downlink frequencies (atmospheric absorption varies with frequencies) . This research helps in calculating and estimating the received power at both ends, and evaluate the [EIRP] and carrier to noise (C/N) ratio in each case. The calculator was designed by using Visual Basic .Net to work with every windows environment. The calculator contributes in calculating the power budget of satellite communication system easily and also gives some practical solutions for good link budget.