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

Ahmad, Waqas LU ; Nejdel, Anders LU ; Törmänen, Markus LU and Sjöland, Henrik LU (2014) 12th IEEE International New Circuits and Systems Conference (IEEE NEWCAS) In 2014 IEEE 12th International New Circuits and Systems Conference (NEWCAS) p.353-356
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... (More)
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. (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
2014 IEEE 12th International New Circuits and Systems Conference (NEWCAS)
pages
353 - 356
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
12th IEEE International New Circuits and Systems Conference (IEEE NEWCAS)
external identifiers
  • wos:000363906700086
  • scopus:84914708311
ISBN
9781479978694
DOI
10.1109/NEWCAS.2014.6934055
project
EIT_DISTRANT Distributed antenna systems for efficient wireless systems
language
English
LU publication?
yes
id
0cbc2975-b308-4768-bea1-834a0d3c993b (old id 4394310)
date added to LUP
2014-04-22 10:19:30
date last changed
2017-01-01 08:01:14
@inproceedings{0cbc2975-b308-4768-bea1-834a0d3c993b,
  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       = {Ahmad, Waqas and Nejdel, Anders and Törmänen, Markus and Sjöland, Henrik},
  booktitle    = {2014 IEEE 12th International New Circuits and Systems Conference (NEWCAS)},
  isbn         = {9781479978694},
  language     = {eng},
  pages        = {353--356},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  title        = {Fully Integrated Radio over Fiber Downlink for Distributed Multi-antenna Systems in 65nm CMOS},
  url          = {http://dx.doi.org/10.1109/NEWCAS.2014.6934055},
  year         = {2014},
}