Fully Integrated Radio over Fiber Downlink for Distributed Multi-antenna Systems in 65nm CMOS

Waqas Ahmad; Anders Nejdel; Markus Törmänen; Henrik Sjöland

doi:10.1109/NEWCAS.2014.6934055

Fully Integrated Radio over Fiber Downlink for Distributed Multi-antenna Systems in 65nm CMOS

Waqas Ahmad, Anders Nejdel, Markus Törmänen, Henrik Sjöland

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

Abstract

This paper presents a fully integrated downlink for low-cost remote antenna units in fiber-fed distributed multi-antenna systems. To reduce the cost of optical parts, an intermediate frequency(IF) signal is distributed over the fiber, and the circuit consists of an optical receiver, a single side-band frequency up-converting radio transmitter, and LO generation circuitry. The optical to electrical conversion gain(V/W) of the system is 59dB, and an output referred 1dB compression point of +6dBm and an OIP3 of +17dBm are measured. The SFDR of the circuit is 96.5 dBHz^2/3. The phase noise of the PLL measured at 4.2GHz is -145dBc/Hz at 20MHz offset, where as the reference spur level is -58dBc. The circuit is fabricated in a standard 65nm CMOS process and occupies just 0.8mm^2 of chip area including bond pads.

Original language	English
Title of host publication	2014 IEEE 12th International New Circuits and Systems Conference (NEWCAS)
Publisher	IEEE - Institute of Electrical and Electronics Engineers Inc.
Pages	353-356
ISBN (Print)	9781479978694
DOIs	https://doi.org/10.1109/NEWCAS.2014.6934055
Publication status	Published - 2014
Event	12th IEEE International New Circuits and Systems Conference (IEEE NEWCAS) - Trois-Rivières, Canada Duration: 2014 Jun 22 → 2014 Jun 25

Conference

Conference	12th IEEE International New Circuits and Systems Conference (IEEE NEWCAS)
Country/Territory	Canada
City	Trois-Rivières
Period	2014/06/22 → 2014/06/25

Subject classification (UKÄ)

Electrical Engineering, Electronic Engineering, Information Engineering

Access to Document

10.1109/NEWCAS.2014.6934055

Distrant: Distributed antenna systems for efficient wireless systems
Nejdel, A. (Researcher), Dahman, G. (Researcher), Prabhu, H. (Researcher), Flordelis i Minguez, J. (Researcher), Liu, L. (Researcher), Abdulaziz, M. (Researcher), Ahmad, W. (Researcher), Tufvesson, F. (Researcher), Törmänen, M. (Researcher), Rusek, F. (Researcher), Sjöland, H. (Researcher), Rodrigues, J. (Researcher) & Edfors, O. (Researcher)
2011/01/01 → 2016/12/31
Project: Research

Cite this

@inproceedings{0cbc2975b3084768bea1834a0d3c993b,

title = "Fully Integrated Radio over Fiber Downlink for Distributed Multi-antenna Systems in 65nm CMOS",

abstract = "This paper presents a fully integrated downlink for low-cost remote antenna units in fiber-fed distributed multi-antenna systems. To reduce the cost of optical parts, an intermediate frequency(IF) signal is distributed over the fiber, and the circuit consists of an optical receiver, a single side-band frequency up-converting radio transmitter, and LO generation circuitry. The optical to electrical conversion gain(V/W) of the system is 59dB, and an output referred 1dB compression point of +6dBm and an OIP3 of +17dBm are measured. The SFDR of the circuit is 96.5 dBHz^2/3. The phase noise of the PLL measured at 4.2GHz is -145dBc/Hz at 20MHz offset, where as the reference spur level is -58dBc. The circuit is fabricated in a standard 65nm CMOS process and occupies just 0.8mm^2 of chip area including bond pads.",

author = "Waqas Ahmad and Anders Nejdel and Markus T{\"o}rm{\"a}nen and Henrik Sj{\"o}land",

year = "2014",

doi = "10.1109/NEWCAS.2014.6934055",

language = "English",

isbn = "9781479978694",

pages = "353--356",

booktitle = "2014 IEEE 12th International New Circuits and Systems Conference (NEWCAS)",

publisher = "IEEE - Institute of Electrical and Electronics Engineers Inc.",

address = "United States",

note = "12th IEEE International New Circuits and Systems Conference (IEEE NEWCAS) ; Conference date: 22-06-2014 Through 25-06-2014",

}

Ahmad, W, Nejdel, A, Törmänen, M & Sjöland, H 2014, Fully Integrated Radio over Fiber Downlink for Distributed Multi-antenna Systems in 65nm CMOS. in 2014 IEEE 12th International New Circuits and Systems Conference (NEWCAS). IEEE - Institute of Electrical and Electronics Engineers Inc., pp. 353-356, 12th IEEE International New Circuits and Systems Conference (IEEE NEWCAS), Trois-Rivières, Canada, 2014/06/22. https://doi.org/10.1109/NEWCAS.2014.6934055

Fully Integrated Radio over Fiber Downlink for Distributed Multi-antenna Systems in 65nm CMOS. / Ahmad, Waqas; Nejdel, Anders; Törmänen, Markus et al.
2014 IEEE 12th International New Circuits and Systems Conference (NEWCAS). IEEE - Institute of Electrical and Electronics Engineers Inc., 2014. p. 353-356.

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

TY - GEN

T1 - Fully Integrated Radio over Fiber Downlink for Distributed Multi-antenna Systems in 65nm CMOS

AU - Ahmad, Waqas

AU - Nejdel, Anders

AU - Törmänen, Markus

AU - Sjöland, Henrik

PY - 2014

Y1 - 2014

N2 - This paper presents a fully integrated downlink for low-cost remote antenna units in fiber-fed distributed multi-antenna systems. To reduce the cost of optical parts, an intermediate frequency(IF) signal is distributed over the fiber, and the circuit consists of an optical receiver, a single side-band frequency up-converting radio transmitter, and LO generation circuitry. The optical to electrical conversion gain(V/W) of the system is 59dB, and an output referred 1dB compression point of +6dBm and an OIP3 of +17dBm are measured. The SFDR of the circuit is 96.5 dBHz^2/3. The phase noise of the PLL measured at 4.2GHz is -145dBc/Hz at 20MHz offset, where as the reference spur level is -58dBc. The circuit is fabricated in a standard 65nm CMOS process and occupies just 0.8mm^2 of chip area including bond pads.

AB - This paper presents a fully integrated downlink for low-cost remote antenna units in fiber-fed distributed multi-antenna systems. To reduce the cost of optical parts, an intermediate frequency(IF) signal is distributed over the fiber, and the circuit consists of an optical receiver, a single side-band frequency up-converting radio transmitter, and LO generation circuitry. The optical to electrical conversion gain(V/W) of the system is 59dB, and an output referred 1dB compression point of +6dBm and an OIP3 of +17dBm are measured. The SFDR of the circuit is 96.5 dBHz^2/3. The phase noise of the PLL measured at 4.2GHz is -145dBc/Hz at 20MHz offset, where as the reference spur level is -58dBc. The circuit is fabricated in a standard 65nm CMOS process and occupies just 0.8mm^2 of chip area including bond pads.

U2 - 10.1109/NEWCAS.2014.6934055

DO - 10.1109/NEWCAS.2014.6934055

M3 - Paper in conference proceeding

SN - 9781479978694

SP - 353

EP - 356

BT - 2014 IEEE 12th International New Circuits and Systems Conference (NEWCAS)

PB - IEEE - Institute of Electrical and Electronics Engineers Inc.

T2 - 12th IEEE International New Circuits and Systems Conference (IEEE NEWCAS)

Y2 - 22 June 2014 through 25 June 2014

ER -

Fully Integrated Radio over Fiber Downlink for Distributed Multi-antenna Systems in 65nm CMOS

Abstract

Conference

Subject classification (UKÄ)

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Projects

Distrant: Distributed antenna systems for efficient wireless systems

Cite this