A Highly Linearized Ka-band Heterodyne Receiver using a Folded Class-AB Inductive Peaking Mixer and Magnetic-Self-Cancellation-Transformer-Based IF Amplifiers

• Main Authors: Wu, Qixiu, Deng, Wei, Jia, Haikun, Wu, Rui, Zhao, Fuyuan, Chi, Baoyong
• Format: Conference Proceeding
• Language: English
• Subjects: folded class-AB mixer; heterodyne receiver; Ka band; Linearity; load-pull interstage hybrid network; Magnetic cores; magnetic self-cancelling transformer; Power demand; Receivers; Silicon; Transceivers; Transformers
• ISSN: 2158-1525
• DOI: 10.1109/ISCAS48785.2022.9937986

This work presents a linearized Ka-band heterodyne receiver for millimeter-wave phased-array systems with high linearity requirement. A folded class-AB inductive peaking mixer and a two-stage magnetic self-cancellation-based load-pull interstage matching Intermediate-frequency (IF) amplifier are proposed to improve the linearity of input and output 1-dB compression point, respectively. The proposed receiver is implemented in 65 nm CMOS technology and its core area is 0.7 mm 2 . The measured input 1-dB compression point (IP 1dB ) is −10.9dBm and the output 1-dB compression point (OP 1dB ) is 7.1 dBm, with noise Figure (NF) of 10.1 dB at center frequency. To the best knowledge of the authors, the proposed RX achieves the highest IP 1dB and OP 1dB among all the listed publications in silicon technology. The power consumption of the receiver including LO path is 119mW.