A 4-antenna transmitter in 0.18μm CMOS using space-time block codes

Nathan M. Neihart, Kuang-Wei Cheng, Jeffrey S. Walling, Yoo Sangmin, David J. Allstot

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Efficient power delivery is a challenge in many RF systems. The use of space-time block codes as a means for reducing the required output power of the power amplifier and thereby improving the system efficiency is described. The first implementation of a fully-integrated 4-antenna transmitter based on space-time block codes is described. It is fully configurable as a 1-, 2-, 3-, and 4-antenna system to investigate the tradeoffs between space-time block code length and overall system efficiency. It is shown that the measured optimum is a 3-antenna system capable of delivering +27.7 dBm into a 50 Ω load using three class-AB power amplifier cells each delivering +20 dBm into 50 Ω with a PAE of 23%. Owing to the space-time block coding gain, the overall PAE of the 3-channel transmitter delivering +27.7 dBm is 39%. The system is intenerated in 0.18μm CMOS and measures 4mm x 6mm.

Original languageEnglish
Title of host publicationProceedings of the 2009 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2009
Pages361-364
Number of pages4
DOIs
Publication statusPublished - 2009 Oct 27
Event2009 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2009 - Boston, MA, United States
Duration: 2009 Jun 72009 Jun 9

Publication series

NameDigest of Papers - IEEE Radio Frequency Integrated Circuits Symposium
ISSN (Print)1529-2517

Other

Other2009 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2009
CountryUnited States
CityBoston, MA
Period09-06-0709-06-09

Fingerprint

Block codes
Transmitters
Antennas
Power amplifiers
Space-time block coding (STBC)

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Neihart, N. M., Cheng, K-W., Walling, J. S., Sangmin, Y., & Allstot, D. J. (2009). A 4-antenna transmitter in 0.18μm CMOS using space-time block codes. In Proceedings of the 2009 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2009 (pp. 361-364). [5135558] (Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium). https://doi.org/10.1109/RFIC.2009.5135558
Neihart, Nathan M. ; Cheng, Kuang-Wei ; Walling, Jeffrey S. ; Sangmin, Yoo ; Allstot, David J. / A 4-antenna transmitter in 0.18μm CMOS using space-time block codes. Proceedings of the 2009 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2009. 2009. pp. 361-364 (Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium).
@inproceedings{841738e2ccaa451c80f9d6844ef21cdd,
title = "A 4-antenna transmitter in 0.18μm CMOS using space-time block codes",
abstract = "Efficient power delivery is a challenge in many RF systems. The use of space-time block codes as a means for reducing the required output power of the power amplifier and thereby improving the system efficiency is described. The first implementation of a fully-integrated 4-antenna transmitter based on space-time block codes is described. It is fully configurable as a 1-, 2-, 3-, and 4-antenna system to investigate the tradeoffs between space-time block code length and overall system efficiency. It is shown that the measured optimum is a 3-antenna system capable of delivering +27.7 dBm into a 50 Ω load using three class-AB power amplifier cells each delivering +20 dBm into 50 Ω with a PAE of 23{\%}. Owing to the space-time block coding gain, the overall PAE of the 3-channel transmitter delivering +27.7 dBm is 39{\%}. The system is intenerated in 0.18μm CMOS and measures 4mm x 6mm.",
author = "Neihart, {Nathan M.} and Kuang-Wei Cheng and Walling, {Jeffrey S.} and Yoo Sangmin and Allstot, {David J.}",
year = "2009",
month = "10",
day = "27",
doi = "10.1109/RFIC.2009.5135558",
language = "English",
isbn = "9781424433780",
series = "Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium",
pages = "361--364",
booktitle = "Proceedings of the 2009 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2009",

}

Neihart, NM, Cheng, K-W, Walling, JS, Sangmin, Y & Allstot, DJ 2009, A 4-antenna transmitter in 0.18μm CMOS using space-time block codes. in Proceedings of the 2009 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2009., 5135558, Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium, pp. 361-364, 2009 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2009, Boston, MA, United States, 09-06-07. https://doi.org/10.1109/RFIC.2009.5135558

A 4-antenna transmitter in 0.18μm CMOS using space-time block codes. / Neihart, Nathan M.; Cheng, Kuang-Wei; Walling, Jeffrey S.; Sangmin, Yoo; Allstot, David J.

Proceedings of the 2009 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2009. 2009. p. 361-364 5135558 (Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - A 4-antenna transmitter in 0.18μm CMOS using space-time block codes

AU - Neihart, Nathan M.

AU - Cheng, Kuang-Wei

AU - Walling, Jeffrey S.

AU - Sangmin, Yoo

AU - Allstot, David J.

PY - 2009/10/27

Y1 - 2009/10/27

N2 - Efficient power delivery is a challenge in many RF systems. The use of space-time block codes as a means for reducing the required output power of the power amplifier and thereby improving the system efficiency is described. The first implementation of a fully-integrated 4-antenna transmitter based on space-time block codes is described. It is fully configurable as a 1-, 2-, 3-, and 4-antenna system to investigate the tradeoffs between space-time block code length and overall system efficiency. It is shown that the measured optimum is a 3-antenna system capable of delivering +27.7 dBm into a 50 Ω load using three class-AB power amplifier cells each delivering +20 dBm into 50 Ω with a PAE of 23%. Owing to the space-time block coding gain, the overall PAE of the 3-channel transmitter delivering +27.7 dBm is 39%. The system is intenerated in 0.18μm CMOS and measures 4mm x 6mm.

AB - Efficient power delivery is a challenge in many RF systems. The use of space-time block codes as a means for reducing the required output power of the power amplifier and thereby improving the system efficiency is described. The first implementation of a fully-integrated 4-antenna transmitter based on space-time block codes is described. It is fully configurable as a 1-, 2-, 3-, and 4-antenna system to investigate the tradeoffs between space-time block code length and overall system efficiency. It is shown that the measured optimum is a 3-antenna system capable of delivering +27.7 dBm into a 50 Ω load using three class-AB power amplifier cells each delivering +20 dBm into 50 Ω with a PAE of 23%. Owing to the space-time block coding gain, the overall PAE of the 3-channel transmitter delivering +27.7 dBm is 39%. The system is intenerated in 0.18μm CMOS and measures 4mm x 6mm.

UR - http://www.scopus.com/inward/record.url?scp=70350223676&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=70350223676&partnerID=8YFLogxK

U2 - 10.1109/RFIC.2009.5135558

DO - 10.1109/RFIC.2009.5135558

M3 - Conference contribution

AN - SCOPUS:70350223676

SN - 9781424433780

T3 - Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium

SP - 361

EP - 364

BT - Proceedings of the 2009 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2009

ER -

Neihart NM, Cheng K-W, Walling JS, Sangmin Y, Allstot DJ. A 4-antenna transmitter in 0.18μm CMOS using space-time block codes. In Proceedings of the 2009 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2009. 2009. p. 361-364. 5135558. (Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium). https://doi.org/10.1109/RFIC.2009.5135558