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

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

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

5 Citations (Scopus)
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Abstract

Abstract A wideband modulator for a 20MHz bandwidth polar modulated PA is presented which achieves a maximum efficiency of 87.5% and a small signal -3dB bandwidth of 285MHz. Realized in 65nm CMOS, it consists of a cascoded nested Miller compensated linear amplifier and a class D switching amplifier. It can deliver 22.7dBm output power to a 5.3Ω load. With a switching frequency of 118MHz, the output switching ripple is 4.3mVrms. Keywords: supply modulator, power amplifier, CMOS and cascoded nested Miller.
Original languageEnglish
Title of host publication2008 IEEE Symposium on VLSI Circuits
Place of PublicationPiscataway
PublisherIEEE
Pages92-93
Number of pages2
ISBN (Print)978-1-4244-1804-6
DOIs
Publication statusPublished - 19 Jun 2008
Event2008 IEEE Symposium on VLSI Circuits, VLSIC 2008 - Honolulu, United States
Duration: 19 Jun 200819 Jun 2008

Conference

Conference2008 IEEE Symposium on VLSI Circuits, VLSIC 2008
Abbreviated titleVLSIC
CountryUnited States
CityHonolulu
Period19/06/0819/06/08

Fingerprint

Modulators
Bandwidth
Switching frequency
Power amplifiers

Keywords

  • EWI-13053
  • METIS-254879
  • IR-64871

Cite this

Shrestha, R., van der Zee, R. A. R., de Graauw, A. J. M., & Nauta, B. (2008). A wideband supply modulator for 20MHz RF bandwidth polar PAs in 65nm CMOS. In 2008 IEEE Symposium on VLSI Circuits (pp. 92-93). Piscataway: IEEE. https://doi.org/10.1109/VLSIC.2008.4585964
Shrestha, R. ; van der Zee, Ronan A.R. ; de Graauw, A.J.M. ; Nauta, Bram. / A wideband supply modulator for 20MHz RF bandwidth polar PAs in 65nm CMOS. 2008 IEEE Symposium on VLSI Circuits. Piscataway : IEEE, 2008. pp. 92-93
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abstract = "Abstract A wideband modulator for a 20MHz bandwidth polar modulated PA is presented which achieves a maximum efficiency of 87.5{\%} and a small signal -3dB bandwidth of 285MHz. Realized in 65nm CMOS, it consists of a cascoded nested Miller compensated linear amplifier and a class D switching amplifier. It can deliver 22.7dBm output power to a 5.3Ω load. With a switching frequency of 118MHz, the output switching ripple is 4.3mVrms. Keywords: supply modulator, power amplifier, CMOS and cascoded nested Miller.",
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Shrestha, R, van der Zee, RAR, de Graauw, AJM & Nauta, B 2008, A wideband supply modulator for 20MHz RF bandwidth polar PAs in 65nm CMOS. in 2008 IEEE Symposium on VLSI Circuits. IEEE, Piscataway, pp. 92-93, 2008 IEEE Symposium on VLSI Circuits, VLSIC 2008, Honolulu, United States, 19/06/08. https://doi.org/10.1109/VLSIC.2008.4585964

A wideband supply modulator for 20MHz RF bandwidth polar PAs in 65nm CMOS. / Shrestha, R.; van der Zee, Ronan A.R.; de Graauw, A.J.M.; Nauta, Bram.

2008 IEEE Symposium on VLSI Circuits. Piscataway : IEEE, 2008. p. 92-93.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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N2 - Abstract A wideband modulator for a 20MHz bandwidth polar modulated PA is presented which achieves a maximum efficiency of 87.5% and a small signal -3dB bandwidth of 285MHz. Realized in 65nm CMOS, it consists of a cascoded nested Miller compensated linear amplifier and a class D switching amplifier. It can deliver 22.7dBm output power to a 5.3Ω load. With a switching frequency of 118MHz, the output switching ripple is 4.3mVrms. Keywords: supply modulator, power amplifier, CMOS and cascoded nested Miller.

AB - Abstract A wideband modulator for a 20MHz bandwidth polar modulated PA is presented which achieves a maximum efficiency of 87.5% and a small signal -3dB bandwidth of 285MHz. Realized in 65nm CMOS, it consists of a cascoded nested Miller compensated linear amplifier and a class D switching amplifier. It can deliver 22.7dBm output power to a 5.3Ω load. With a switching frequency of 118MHz, the output switching ripple is 4.3mVrms. Keywords: supply modulator, power amplifier, CMOS and cascoded nested Miller.

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Shrestha R, van der Zee RAR, de Graauw AJM, Nauta B. A wideband supply modulator for 20MHz RF bandwidth polar PAs in 65nm CMOS. In 2008 IEEE Symposium on VLSI Circuits. Piscataway: IEEE. 2008. p. 92-93 https://doi.org/10.1109/VLSIC.2008.4585964