Modelling of high frequency Lamb wave resonator for monolithic CMOS radar transceiver

Abstract

A pure and high-frequency clock reference will benefit the radar transceivers, helping on generating superior chirp signals. Revealed by recent literatures, Lamb-wave resonator is a candidate to provide such a reference. However, reported equivalent-circuit models of Lamb wave resonators are not accurate enough to enable the designs of integrated circuits. This paper discusses necessities of high-frequency resonators for radar transceivers, measures to design CMOS compatible Lamb-wave resonator for monolithic transceiver implementations, the importance of accurate modeling. An accurate model is also put forward that can precisely fit the two-port Y-parameters of the fabricated device. This work is very useful for radar transceiver designs, oscillator designs, and also device analysis.