Calibration and Weather Observation of a Dual-polarized Phased Array Line Replaceable Unit Radar Demonstrator

This paper provides an overall, detailed description of a C-band, 64-element Line Replaceable Unit (LRU) radar system. The LRU radar system was developed as a technology demonstrator to explore various phased array related technologies and investigate the technical requirements for the next-generation airborne phased array radar (APAR). The demonstrator served as a research platform through various calibration related topics, beamforming, and expansion to an end-to-end radar system.