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Performance Study of a Ring Resonator-Based Optical Beam Forming System for Phased Array Receive Antennas

A broadband, continuously tunable receiver system for phased array antennas is described. It uses a ring resonator-based optical beamforming network, filter-based optical SSB-SC modulation and balanced coherent detection. The system is modeled as an equivalent RF two-port system and its performance is analyzed, identifying and modeling dominant noise and distortion sources. Numerical theoretical performance results are reported for a satellite television case study, based on DVB-S.