A wideband frequency translational resistive feedback receiver resilient to large harmonic blockers

Lenka, MK and Shrivastava, A and Banerjee, G (2021) A wideband frequency translational resistive feedback receiver resilient to large harmonic blockers. In: Analog Integrated Circuits and Signal Processing .

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Abstract

By utilizing frequency translational resistive feedback, a recently proposed blocker current-cancelling wideband receiver (Lenka and Banerjee in IEEE Trans Very Large Scale Integr Syst 27(5): 993�1006, 2019), tolerates 0-dBm blockers beyond 40 MHz offset with little degradation in performance. However, like most wideband receivers, the architecture is far less tolerant to �harmonic blockers�, that is, blockers located at or around precise integer multiples of the local oscillator frequency. This paper presents an enhanced blocker current-cancelling receiver that prevents harmonic blockers from undergoing large gain and thus boosts the receiver�s resilience to such blockers. Implemented in a 22-nm CMOS process, the RX can tolerate up to - 1 dBm harmonic blockers. On the other hand, it achieves a 1-dB standard blocker compression point of + 3 dBm and out-of-band third-order input intercept point (OB-IIP3) of + 24 dBm at 40 MHz offset from the LO frequency. © 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC part of Springer Nature.

Item Type:	Journal Article
Publication:	Analog Integrated Circuits and Signal Processing
Publisher:	Springer
Additional Information:	The copyright of this article belongs to Springer
Keywords:	Feedback, CMOS processs; Compression points; LO frequency; Local oscillator frequencies; Resistive feedback; Third-order input intercept points; Wide band frequencies; Wideband receivers, Harmonic analysis
Department/Centre:	Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering
Date Deposited:	18 Jan 2021 10:52
Last Modified:	18 Jan 2021 11:55
URI:	http://eprints.iisc.ac.in/id/eprint/67689

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