A GILBERT CELL BASED GAIN AND PHASE MISMATCH CALIBRATION LOOP FOR 5G BEAMFORMERS

Abstract

This thesis explores some calibration methods for gain and phase mismatch between beamformer channels responsible for either RF signals transmission or reception through a mmw 5G antenna array. These methods eliminates thos e mismatches leading to improve the accuracy of the direction of the beam and the exact distance between the transmitter and the receiver . The thesis represents an innovative low power calibration loop that is implemented in TSMC 65nm BiCMOS technology. The design procedure and the layout implementation for all of the building blocks are studied in detail and the simulation results for each block and for the top level will be presented to show the impact of the loop on the overall system performance