Enhanced-Selectivity high-linearity low-noise mixer-first receiver with complex pole pair due to capacitive positive feedback

Yuan-Ching  Lien; Eric A.M. Klumperink; Bernard Tenbroek; Jon Strange; Bram  Nauta

doi:10.1109/JSSC.2018.2791490

Enhanced-Selectivity high-linearity low-noise mixer-first receiver with complex pole pair due to capacitive positive feedback

Yuan-Ching Lien, Eric A.M. Klumperink, Bernard Tenbroek, Jon Strange, Bram Nauta

Research output: Contribution to journal › Article › Academic › peer-review

104 Citations (Scopus)

1039 Downloads (Pure)

Abstract

A mixer-first receiver with enhanced selectivity and high dynamic range is proposed, targeting to remove SAW-filters in mobile phones and cover all frequency bands up to 6 GHz. Capacitive negative feedback across the baseband amplifier serves as a blocker bypassing path, while an extra capacitive positive feedback path offers further blocker rejection. This combination of feedback paths synthesizes a complex pole pair at the input of the baseband amplifier, which is up-converted to the RF port to obtain steeper RF-bandpass filter roll-off and reduced distortion. This paper explains the circuit principle and analyzes receiver performance. A prototype chip fabricated in 45nm Partially Depleted SOI technology achieves high out-of-band linearity (IIP3=39 dBm, IIP2=88 dB) combined with sub-3 dB noise figure. Desensitization due to a 0-dBm blocker is only 2.2 dB at 1.4 GHz.

Original language	English
Pages (from-to)	1348-1360
Number of pages	13
Journal	IEEE journal of solid-state circuits
Volume	53
Issue number	5
Early online date	5 Feb 2018
DOIs	https://doi.org/10.1109/JSSC.2018.2791490
Publication status	Published - 1 May 2018

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10.1109/JSSC.2018.2791490

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104 Citations
1 PhD Thesis - Research UT, graduation UT

Saw-Less radio receivers in CMOS
Lien, Y.-C., 3 Oct 2018, Enschede: University of Twente. 157 p.
Research output: Thesis › PhD Thesis - Research UT, graduation UT

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Cite this

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title = "Enhanced-Selectivity high-linearity low-noise mixer-first receiver with complex pole pair due to capacitive positive feedback",

abstract = "A mixer-first receiver with enhanced selectivity and high dynamic range is proposed, targeting to remove SAW-filters in mobile phones and cover all frequency bands up to 6 GHz. Capacitive negative feedback across the baseband amplifier serves as a blocker bypassing path, while an extra capacitive positive feedback path offers further blocker rejection. This combination of feedback paths synthesizes a complex pole pair at the input of the baseband amplifier, which is up-converted to the RF port to obtain steeper RF-bandpass filter roll-off and reduced distortion. This paper explains the circuit principle and analyzes receiver performance. A prototype chip fabricated in 45nm Partially Depleted SOI technology achieves high out-of-band linearity (IIP3=39 dBm, IIP2=88 dB) combined with sub-3 dB noise figure. Desensitization due to a 0-dBm blocker is only 2.2 dB at 1.4 GHz. ",

author = "Yuan-Ching Lien and Klumperink, {Eric A.M.} and Bernard Tenbroek and Jon Strange and Bram Nauta",

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AU - Strange, Jon

AU - Nauta, Bram

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Enhanced-Selectivity high-linearity low-noise mixer-first receiver with complex pole pair due to capacitive positive feedback

Abstract

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Research output

Saw-Less radio receivers in CMOS

Cite this