PERFORMANCE EVALUATION OF SMART PATCH ARRAY FEED PARABOLIC REFLECTOR

Abstract

This paper deals with the design of patch antenna array feed for high frequency applications. The proposed array feed is provided to the parabolic reflector to enhance the directivity and radiation characteristics. The radiation power is further concentrated in the desired direction through the adaptive Decision Feedback Equalizer based least mean square (DFE-LMS) adaptive beamforming technique. It also has been used to nullify the interference in the respective direction. The design is proposed as an alternative feed antenna to the conventional horn based feed network for C-band applications like satellite communication. The proposed design comprises of an 8x1 linear rectangular patch antenna array framework with a broadside radiation pattern. The parabolic reflector fed with the array is having the F/D ratio of 0.36 corresponding to aperture illumination of 1400. The effectiveness of the proposed design is verified through simulation analysis.