Development of Earth Station Receiving Antenna and Digital Filter Design Analysis for C-Band VSAT

Abstract This paper describes the performance improvement of C-band VSAT receiving antenna. In this work the gain and efficiency of C-band VSAT have been evaluated and then the reflector design is developed with the help of ICARA and MATLAB environment. The proposed design meets the good result of antenna gain and efficiency. The typical gain of prime focus parabolic reflector antenna is 30 dB to 40dB. And the efficiency is 60 to 80 with the good antenna design. By comparing with the typical values the proposed C-band VSAT antenna design is well optimized with gain of 38dB and efficiency of 78. In this paper the better design with compromise gain performance of VSAT receiving parabolic antenna using ICARA software tool and the calculation of C-band downlink path loss is also described. The particular prime focus parabolic reflector antenna is applied for this application and gain of antenna radiation pattern with far field near field and the optimized antenna efficiency is also developed. The objective of this paper is to design the downlink receiving antenna of VSAT satellite ground segment with excellent gain and overall antenna efficiency. The filter design analysis is base on Kaiser window method and the simulation results are also presented in this paper.