Quadratic detection-based millimeter-wave MMIC for TDoA and AoA measurement

Abstract

This paper presents a versatile topology of a monolithic microwave monolithic integrated circuit (MMIC) capable of performing multiple functionalities for next-generation wireless communications and geolocation devices. The architecture of this MMIC allows several modes of operation such as conventional frequency heterodyning for high-speed IQ modulation. In addition, the device can be configured in quadratic sensing mode to achieve optimal power added efficiency (PAE). The topology developed in the 65 nm FDSOI CMOS technology enables wideband V-band operation and combines vector accuracy for high data rates and phase state determination. The results presented concern 16QAM modulation schemes at data rates up to 2 Gbps as well as essential geolocation measurements such as Time Difference of Arrival (TDoA) and Angle of Arrival (AoA). The expected performance in terms of location accuracy is also presented.Index Terms -Monolithic microwave integrated circuit (MMIC); IQ modulation; Millimeter wave; Time Difference of arrival (TDoA); Angle of arrival (AoA).