Design and analysis of a 55-71-GHz compact and broadband distributed active transformer power amplifier in 90-nm CMOS process

Yung Nien Jen, Jeng-Han Tsai, Tian Wei Huang, Huei Wang

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

A 5571-GHz fully integrated power amplifier (PA) using a distributed active transformer (DAT) is implemented in 90-nm RF/MS CMOS technology. The DAT combiner, featuring efficient power combination and direct impedance transformation, is suitable for millimeter-wave (MMW) PA design. Systematic design procedures including an impedance allocation plan, a compensation line, and a gain boosting technique are presented for the MMW DAT PA. The monolithic microwave integrated circuit (MMIC) performs a high and flat small-signal gain of 26 ± 1.5 dB from 55 to 71 GHz, which covers a full band for 60-GHz wireless personal area network applications. sing cascode devices and a DAT four-way power combination, the CMOS PA delivers 14.5- and 18-dBm saturated output power with 10.2% and 12.2% power-added efficiency under 1.8- and 3-V supply voltage, respectively, at 60 GHz. The maximum linear output power ( P1 dB) is 14.5 dBm. To the best of our knowledge, the MMIC is the first demonstration of a V -band CMOS PA using a DAT combining scheme with highest linear output power among the reported 60-GHz CMOS PAs to date.

Original languageEnglish
Article number4967867
Pages (from-to)1637-1646
Number of pages10
JournalIEEE Transactions on Microwave Theory and Techniques
Volume57
Issue number7
DOIs
Publication statusPublished - 2009 Jul 1

Fingerprint

power amplifiers
Power amplifiers
transformers
CMOS
broadband
microwave circuits
Monolithic microwave integrated circuits
Millimeter waves
cascode devices
millimeter waves
integrated circuits
output
impedance
amplifier design
Wave power
Personal communication systems
power efficiency
extremely high frequencies
Demonstrations
Electric potential

Keywords

  • CMOS
  • Distributed active transformer (DAT)
  • Gain boosting
  • Power amplifier (PA)
  • V -band

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Design and analysis of a 55-71-GHz compact and broadband distributed active transformer power amplifier in 90-nm CMOS process. / Jen, Yung Nien; Tsai, Jeng-Han; Huang, Tian Wei; Wang, Huei.

In: IEEE Transactions on Microwave Theory and Techniques, Vol. 57, No. 7, 4967867, 01.07.2009, p. 1637-1646.

Research output: Contribution to journalArticle

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