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A Self Oscillating Current-Reuse Image Reject Mixer for Ultra Low Power Receivers
A. Reddy Yedala,
Published in Institute of Electrical and Electronics Engineers Inc.
This paper presents the analysis and design of an NB-IoT compliant Current-reuse self-oscillating quadrature downconversion mixer (CR-SOM). A modified Hartley Image Reject (IR) Receiver front end employing high-side LO injection is discussed. The SOM is designed and laid out in 65nm CMOS technology and oscillates at 2.8GHz while consuming 1.8mW. Post-layout results indicate a conversion gain of -14.3dB, noise figure of 11.6dB and phase noise of -85.4dBc/Hz at a 200kHz offset from the carrier. The quadrature output amplitude and phase errors fall under 0.02dB and 0.1°, respectively and the entire circuit occupies an area of 0.09mm2. © 2023 IEEE.
About the journal
JournalLASCAS 2023 - 14th IEEE Latin American Symposium on Circuits and Systems, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.