155 GHz FMCW and Stepped-Frequency Carrier OFDM Radar Sensor Transceiver IC Featuring a PLL With

• Published in: IEEE transactions on microwave theory and techniques Vol. 69; no. 11; p. 4908
• Main Authors: Zandieh, Alireza, Bonen, Shai, M Sadegh Dadash, Ming Jia Gong, Hasch, Juergen, Voinigescu, Sorin P
• Format: Journal Article
• Language: English
• Published: New York The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 01.01.2021
• Subjects: Locking; Orthogonal Frequency Division Multiplexing; Phase error; Power amplifiers; Test equipment; Transceivers; Vibration
• ISSN: 0018-9480; 1557-9670
• DOI: 10.1109/TMTT.2021.3094189

8 GHz locking range with record phase noise of −97, −103, and −113 dBc/Hz at 100 kHz, 1 MHz, and 10 MHz offset, respectively, and rms jitter < 40 fs. Stepped-frequency chirps with orthogonal frequency-division multiplexing (OFDM) modulation covering the 152–160 GHz range were demonstrated in a through-the-air loopback link along with a record settling time < 30 ns, limited by the test equipment. The RXs have an IIP3 of −8 dBm, SSB noise figure between 7.5 and 10 dB and a conversion gain of 15 dB, controllable from the LNA back gate over a range of 12 dB. The OP1 dB and [Formula Omitted] of the power amplifier (PA) in each TX are 5 and 9 dBm, respectively. The IQ amplitude mismatch and phase error of each RX are < 0.5 dB and 1°, respectively, while the [Formula Omitted] mismatch between the TXs is