Next-Generation RF Front-End Design Methods for Direct ΔΣ Receivers

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Next-Generation RF Front-End Design Methods for Direct ΔΣ Receivers. / Oestman, Kim B.; Englund, Mikko; Viitala, Olli; Stadius, Kari; Koli, Kimmo; Ryynänen, Jussi.

In: IEEE JOURNAL ON EMERGING AND SELECTED TOPICS IN CIRCUITS AND SYSTEMS, Vol. 5, No. 4, 7343738, 01.12.2015, p. 514-524.

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@article{befa8c3492b449d8ab1e2dce58979f4b,
title = "Next-Generation RF Front-End Design Methods for Direct ΔΣ Receivers",
abstract = "RF-to-digital conversion is a recent approach to digital-intensive wireless receiver operation. Such converters often employ delta-sigma ΔΣ) modulation to transcend the traditional divide between receiver RF front-ends and baseband analog-to-digital converters (ADC). Research on the direct delta-sigma receiver (DDSR) architecture is one example of the emergence of next-generation ΔΣ modulators. It embeds a direct conversion receiver front-end as part of a feedback-type ΔΣ modulator structure with an active loop filter, which extends ADC operation to RF and changes the role of the low-noise amplifier (LNA) and mixing stages. RF-to-digital converters thus merge the two formerly separate design domains, requiring a paradigm shift in both RF and ADC design methods. Accordingly, this paper uses the DDSR as an example to bridge the gap between RF and ADC design, by providing a systematic understanding of the role, modeling, and design strategy of the related complete RF front-end. Most importantly, the analysis produces new design equations that link analog RF stage properties to their continuous-time (CT) ΔΣ modulator coefficients, thus providing a useful circuit design tool.",
keywords = "Circuit optimization, delta-sigma modulators, direct delta-sigma receiver, low noise amplifier, N-path filtering, noise shaping, radio-frequency circuits, CMOS, TRANSCEIVERS, MODULATORS, CONVERSION, ADC",
author = "Oestman, {Kim B.} and Mikko Englund and Olli Viitala and Kari Stadius and Kimmo Koli and Jussi Ryyn{\"a}nen",
year = "2015",
month = "12",
day = "1",
doi = "10.1109/JETCAS.2015.2502165",
language = "English",
volume = "5",
pages = "514--524",
journal = "IEEE JOURNAL ON EMERGING AND SELECTED TOPICS IN CIRCUITS AND SYSTEMS",
issn = "2156-3357",
number = "4",

}

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TY - JOUR

T1 - Next-Generation RF Front-End Design Methods for Direct ΔΣ Receivers

AU - Oestman, Kim B.

AU - Englund, Mikko

AU - Viitala, Olli

AU - Stadius, Kari

AU - Koli, Kimmo

AU - Ryynänen, Jussi

PY - 2015/12/1

Y1 - 2015/12/1

N2 - RF-to-digital conversion is a recent approach to digital-intensive wireless receiver operation. Such converters often employ delta-sigma ΔΣ) modulation to transcend the traditional divide between receiver RF front-ends and baseband analog-to-digital converters (ADC). Research on the direct delta-sigma receiver (DDSR) architecture is one example of the emergence of next-generation ΔΣ modulators. It embeds a direct conversion receiver front-end as part of a feedback-type ΔΣ modulator structure with an active loop filter, which extends ADC operation to RF and changes the role of the low-noise amplifier (LNA) and mixing stages. RF-to-digital converters thus merge the two formerly separate design domains, requiring a paradigm shift in both RF and ADC design methods. Accordingly, this paper uses the DDSR as an example to bridge the gap between RF and ADC design, by providing a systematic understanding of the role, modeling, and design strategy of the related complete RF front-end. Most importantly, the analysis produces new design equations that link analog RF stage properties to their continuous-time (CT) ΔΣ modulator coefficients, thus providing a useful circuit design tool.

AB - RF-to-digital conversion is a recent approach to digital-intensive wireless receiver operation. Such converters often employ delta-sigma ΔΣ) modulation to transcend the traditional divide between receiver RF front-ends and baseband analog-to-digital converters (ADC). Research on the direct delta-sigma receiver (DDSR) architecture is one example of the emergence of next-generation ΔΣ modulators. It embeds a direct conversion receiver front-end as part of a feedback-type ΔΣ modulator structure with an active loop filter, which extends ADC operation to RF and changes the role of the low-noise amplifier (LNA) and mixing stages. RF-to-digital converters thus merge the two formerly separate design domains, requiring a paradigm shift in both RF and ADC design methods. Accordingly, this paper uses the DDSR as an example to bridge the gap between RF and ADC design, by providing a systematic understanding of the role, modeling, and design strategy of the related complete RF front-end. Most importantly, the analysis produces new design equations that link analog RF stage properties to their continuous-time (CT) ΔΣ modulator coefficients, thus providing a useful circuit design tool.

KW - Circuit optimization

KW - delta-sigma modulators

KW - direct delta-sigma receiver

KW - low noise amplifier

KW - N-path filtering

KW - noise shaping

KW - radio-frequency circuits

KW - CMOS

KW - TRANSCEIVERS

KW - MODULATORS

KW - CONVERSION

KW - ADC

UR - http://www.scopus.com/inward/record.url?scp=84949870382&partnerID=8YFLogxK

U2 - 10.1109/JETCAS.2015.2502165

DO - 10.1109/JETCAS.2015.2502165

M3 - Article

AN - SCOPUS:84949870382

VL - 5

SP - 514

EP - 524

JO - IEEE JOURNAL ON EMERGING AND SELECTED TOPICS IN CIRCUITS AND SYSTEMS

JF - IEEE JOURNAL ON EMERGING AND SELECTED TOPICS IN CIRCUITS AND SYSTEMS

SN - 2156-3357

IS - 4

M1 - 7343738

ER -

ID: 3245137