This document describes the design and simulation of a MEMS-based gyroscope. It includes: 1) An overview of the mechanical design of the gyroscope, which uses a square plate resonator supported by 4 anchors and driven by comb electrodes. 2) A simulation of the gyroscope in COMSOL Multiphysics to analyze performance, including eigenfrequency analysis and matching the drive and sense modes. 3) Calculation of sensitivity based on the capacitive change measured between the proof mass and detection electrode, resulting from Coriolis acceleration induced by rotation.