A 600MHz CMOS OFDM LINC transmitter with a 7 bit digital phase modulator

Kwan Woo Kim; Sangjin Byun; Kyutae Lim; Chang Ho Lee; Joy Laskar

doi:10.1109/RFIC.2008.4561528

A 600MHz CMOS OFDM LINC transmitter with a 7 bit digital phase modulator

Kwan Woo Kim, Sangjin Byun, Kyutae Lim, Chang Ho Lee, Joy Laskar

Department of Electronics & Electrical Engineering

Georgia Institute of Technology

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

14 Scopus citations

Abstract

This paper presents a new architecture for a LINC transmitter adopting a digital phase modulator (DPM). The DPM uses a 7 bit digital input to directly modulate the RF phase of each path, thus simplifying gain/phase mismatch compensation. Furthermore, this feature needs only one set of test signals for gain and phase mismatch detection. The implemented LINC transmitter IC consumes 140mA from a 1.9V supply including an LC quadrature VCO, two DPMs, and two PA driver amplifiers, and it transmits a 6MHz bandwidth 64-QAM OFDM signal in the UHF TV band with external switching PAs and a power combiner.

Original language	English
Title of host publication	Proceedings of the 2008 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2008
Pages	677-680
Number of pages	4
DOIs	https://doi.org/10.1109/RFIC.2008.4561528
State	Published - 2008
Event	2008 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2008 - Atlanta, GA, United States Duration: 15 Jun 2008 → 17 Jun 2008

Publication series

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

Conference

Conference	2008 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2008
Country/Territory	United States
City	Atlanta, GA
Period	15/06/08 → 17/06/08

Keywords

Digital phase modulator (DPM)
LINC
Mismatch compensation
OFDM
Out-phase
Phase interpolator (PI)

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10.1109/RFIC.2008.4561528

Cite this

Kim, K. W., Byun, S., Lim, K., Lee, C. H., & Laskar, J. (2008). A 600MHz CMOS OFDM LINC transmitter with a 7 bit digital phase modulator. In Proceedings of the 2008 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2008 (pp. 677-680). Article 4561528 (Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium). https://doi.org/10.1109/RFIC.2008.4561528

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title = "A 600MHz CMOS OFDM LINC transmitter with a 7 bit digital phase modulator",

abstract = "This paper presents a new architecture for a LINC transmitter adopting a digital phase modulator (DPM). The DPM uses a 7 bit digital input to directly modulate the RF phase of each path, thus simplifying gain/phase mismatch compensation. Furthermore, this feature needs only one set of test signals for gain and phase mismatch detection. The implemented LINC transmitter IC consumes 140mA from a 1.9V supply including an LC quadrature VCO, two DPMs, and two PA driver amplifiers, and it transmits a 6MHz bandwidth 64-QAM OFDM signal in the UHF TV band with external switching PAs and a power combiner.",

keywords = "Digital phase modulator (DPM), LINC, Mismatch compensation, OFDM, Out-phase, Phase interpolator (PI)",

author = "Kim, {Kwan Woo} and Sangjin Byun and Kyutae Lim and Lee, {Chang Ho} and Joy Laskar",

year = "2008",

doi = "10.1109/RFIC.2008.4561528",

language = "English",

isbn = "9781424418091",

series = "Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium",

pages = "677--680",

booktitle = "Proceedings of the 2008 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2008",

note = "2008 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2008 ; Conference date: 15-06-2008 Through 17-06-2008",

}

Kim, KW, Byun, S, Lim, K, Lee, CH & Laskar, J 2008, A 600MHz CMOS OFDM LINC transmitter with a 7 bit digital phase modulator. in Proceedings of the 2008 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2008., 4561528, Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium, pp. 677-680, 2008 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2008, Atlanta, GA, United States, 15/06/08. https://doi.org/10.1109/RFIC.2008.4561528

A 600MHz CMOS OFDM LINC transmitter with a 7 bit digital phase modulator. / Kim, Kwan Woo; Byun, Sangjin; Lim, Kyutae et al.
Proceedings of the 2008 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2008. 2008. p. 677-680 4561528 (Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium).

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

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AB - This paper presents a new architecture for a LINC transmitter adopting a digital phase modulator (DPM). The DPM uses a 7 bit digital input to directly modulate the RF phase of each path, thus simplifying gain/phase mismatch compensation. Furthermore, this feature needs only one set of test signals for gain and phase mismatch detection. The implemented LINC transmitter IC consumes 140mA from a 1.9V supply including an LC quadrature VCO, two DPMs, and two PA driver amplifiers, and it transmits a 6MHz bandwidth 64-QAM OFDM signal in the UHF TV band with external switching PAs and a power combiner.

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KW - Out-phase

KW - Phase interpolator (PI)

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A 600MHz CMOS OFDM LINC transmitter with a 7 bit digital phase modulator

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