A wideband supply modulator for 20MHz RF bandwidth polar PAs in 65nm CMOS

R. Shrestha; R.A.R. van der Zee; A.J.M. de Graauw; B. Nauta

doi:10.1109/VLSIC.2008.4585964

A wideband supply modulator for 20MHz RF bandwidth polar PAs in 65nm CMOS

R. Shrestha, R.A.R. van der Zee, A.J.M. de Graauw, B. Nauta

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

5 Citations (Scopus)

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Abstract

A wideband modulator for a 20MHz bandwidth polarmodulated PA is presented which achieves a maximumefficiency of 87.5% and a small signal -3dB bandwidth of285MHz. Realized in 65nm CMOS, it consists of a cascodednested Miller compensated linear amplifier and a class Dswitching amplifier. It can deliver 22.7dBm output power to a5.3Ω load. With a switching frequency of 118MHz, the outputswitching ripple is 4.3mVrms.Keywords: supply modulator, power amplifier, CMOS andcascoded nested Miller.

Original language	English
Title of host publication	2008 IEEE Symposium on VLSI Circuits
Place of Publication	Piscataway
Publisher	IEEE
Pages	92-93
Number of pages	2
ISBN (Electronic)	978-1-4244-1805-3
ISBN (Print)	978-1-4244-1804-6
DOIs	https://doi.org/10.1109/VLSIC.2008.4585964
Publication status	Published - 19 Jun 2008
Event	2008 IEEE Symposium on VLSI Circuits, VLSIC 2008 - Honolulu, United States Duration: 19 Jun 2008 → 19 Jun 2008

Conference

Conference	2008 IEEE Symposium on VLSI Circuits, VLSIC 2008
Abbreviated title	VLSIC
Country/Territory	United States
City	Honolulu
Period	19/06/08 → 19/06/08

Keywords

Supply modulator
Power amplifier
CMOS and cascoded nested Miller

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10.1109/VLSIC.2008.4585964

R._Shrestha_VLSI2008Accepted author version, 279 KB

Cite this

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title = "A wideband supply modulator for 20MHz RF bandwidth polar PAs in 65nm CMOS",

abstract = "A wideband modulator for a 20MHz bandwidth polarmodulated PA is presented which achieves a maximumefficiency of 87.5% and a small signal -3dB bandwidth of285MHz. Realized in 65nm CMOS, it consists of a cascodednested Miller compensated linear amplifier and a class Dswitching amplifier. It can deliver 22.7dBm output power to a5.3Ω load. With a switching frequency of 118MHz, the outputswitching ripple is 4.3mVrms.Keywords: supply modulator, power amplifier, CMOS andcascoded nested Miller.",

keywords = "Supply modulator, Power amplifier, CMOS and cascoded nested Miller",

author = "R. Shrestha and {van der Zee}, R.A.R. and {de Graauw}, A.J.M. and B. Nauta",

year = "2008",

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doi = "10.1109/VLSIC.2008.4585964",

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AU - Shrestha, R.

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AU - de Graauw, A.J.M.

AU - Nauta, B.

PY - 2008/6/19

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N2 - A wideband modulator for a 20MHz bandwidth polarmodulated PA is presented which achieves a maximumefficiency of 87.5% and a small signal -3dB bandwidth of285MHz. Realized in 65nm CMOS, it consists of a cascodednested Miller compensated linear amplifier and a class Dswitching amplifier. It can deliver 22.7dBm output power to a5.3Ω load. With a switching frequency of 118MHz, the outputswitching ripple is 4.3mVrms.Keywords: supply modulator, power amplifier, CMOS andcascoded nested Miller.

AB - A wideband modulator for a 20MHz bandwidth polarmodulated PA is presented which achieves a maximumefficiency of 87.5% and a small signal -3dB bandwidth of285MHz. Realized in 65nm CMOS, it consists of a cascodednested Miller compensated linear amplifier and a class Dswitching amplifier. It can deliver 22.7dBm output power to a5.3Ω load. With a switching frequency of 118MHz, the outputswitching ripple is 4.3mVrms.Keywords: supply modulator, power amplifier, CMOS andcascoded nested Miller.

KW - Supply modulator

KW - Power amplifier

KW - CMOS and cascoded nested Miller

U2 - 10.1109/VLSIC.2008.4585964

DO - 10.1109/VLSIC.2008.4585964

M3 - Conference contribution

SN - 978-1-4244-1804-6

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EP - 93

BT - 2008 IEEE Symposium on VLSI Circuits

PB - IEEE

CY - Piscataway

T2 - 2008 IEEE Symposium on VLSI Circuits, VLSIC 2008

Y2 - 19 June 2008 through 19 June 2008

ER -

A wideband supply modulator for 20MHz RF bandwidth polar PAs in 65nm CMOS

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