A V-Band Doherty Power Amplifier Based on Voltage Combination and Balance Compensation Marchand Balun

Dong CHEN; Chenxi ZHAO; Zhengdong JIANG; Kam Man SHUM; Quan XUE; Kai KANG

doi:10.1109/ACCESS.2018.2795379

A V-Band Doherty Power Amplifier Based on Voltage Combination and Balance Compensation Marchand Balun

Dong CHEN
, Chenxi ZHAO
, Zhengdong JIANG
, Kam Man SHUM
, Quan XUE
, Kai KANG^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

24 Citations (Scopus)

274 Downloads (CityUHK Scholars)

Abstract

This paper presents a V -band Doherty power amplifier (PA) which is implemented in a standard 65-nm CMOS technology. The voltage combination technique is used to realize the millimeter-wave Doherty PA without the λ /4 transmission lines. A Marchand balun with balance compensation is designed to combine the output power with reduced power loss. Moreover, a nonlinear driver is used to drive the peaking amplifier to enhance the output power and the turn-on speed of it. The power-added efficiency (PAE) of this PA at the 6-dB power back-off point is 8.7% and the peak PAE reaches 16.8%. The small signal power gain is 18 dB, and the maximum output power is 14.9 dBm. The core circuit only costs 0.195 mm² chip area as no λ /4 transmission lines.

Original language	English
Pages (from-to)	10131-10138
Journal	IEEE Access
Volume	6
Online published	18 Jan 2018
DOIs	https://doi.org/10.1109/ACCESS.2018.2795379
Publication status	Published - 2018

Research Keywords

CMOS
Doherty power amplifiers
Marchand balun
millimeter-wave
voltage combination

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@article{cdbce9cb25ff4beea0ce438eebc85a83,

title = "A V-Band Doherty Power Amplifier Based on Voltage Combination and Balance Compensation Marchand Balun",

abstract = "This paper presents a V -band Doherty power amplifier (PA) which is implemented in a standard 65-nm CMOS technology. The voltage combination technique is used to realize the millimeter-wave Doherty PA without the λ /4 transmission lines. A Marchand balun with balance compensation is designed to combine the output power with reduced power loss. Moreover, a nonlinear driver is used to drive the peaking amplifier to enhance the output power and the turn-on speed of it. The power-added efficiency (PAE) of this PA at the 6-dB power back-off point is 8.7\% and the peak PAE reaches 16.8\%. The small signal power gain is 18 dB, and the maximum output power is 14.9 dBm. The core circuit only costs 0.195 mm2 chip area as no λ /4 transmission lines.",

keywords = "CMOS, Doherty power amplifiers, Marchand balun, millimeter-wave, voltage combination",

author = "Dong CHEN and Chenxi ZHAO and Zhengdong JIANG and SHUM, \{Kam Man\} and Quan XUE and Kai KANG",

year = "2018",

doi = "10.1109/ACCESS.2018.2795379",

language = "English",

volume = "6",

pages = "10131--10138",

journal = "IEEE Access",

issn = "2169-3536",

publisher = "IEEE",

}

TY - JOUR

T1 - A V-Band Doherty Power Amplifier Based on Voltage Combination and Balance Compensation Marchand Balun

AU - CHEN, Dong

AU - ZHAO, Chenxi

AU - JIANG, Zhengdong

AU - SHUM, Kam Man

AU - XUE, Quan

AU - KANG, Kai

PY - 2018

Y1 - 2018

N2 - This paper presents a V -band Doherty power amplifier (PA) which is implemented in a standard 65-nm CMOS technology. The voltage combination technique is used to realize the millimeter-wave Doherty PA without the λ /4 transmission lines. A Marchand balun with balance compensation is designed to combine the output power with reduced power loss. Moreover, a nonlinear driver is used to drive the peaking amplifier to enhance the output power and the turn-on speed of it. The power-added efficiency (PAE) of this PA at the 6-dB power back-off point is 8.7% and the peak PAE reaches 16.8%. The small signal power gain is 18 dB, and the maximum output power is 14.9 dBm. The core circuit only costs 0.195 mm2 chip area as no λ /4 transmission lines.

AB - This paper presents a V -band Doherty power amplifier (PA) which is implemented in a standard 65-nm CMOS technology. The voltage combination technique is used to realize the millimeter-wave Doherty PA without the λ /4 transmission lines. A Marchand balun with balance compensation is designed to combine the output power with reduced power loss. Moreover, a nonlinear driver is used to drive the peaking amplifier to enhance the output power and the turn-on speed of it. The power-added efficiency (PAE) of this PA at the 6-dB power back-off point is 8.7% and the peak PAE reaches 16.8%. The small signal power gain is 18 dB, and the maximum output power is 14.9 dBm. The core circuit only costs 0.195 mm2 chip area as no λ /4 transmission lines.

KW - CMOS

KW - Doherty power amplifiers

KW - Marchand balun

KW - millimeter-wave

KW - voltage combination

UR - https://www.scopus.com/pages/publications/85040926369

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85040926369&origin=recordpage

U2 - 10.1109/ACCESS.2018.2795379

DO - 10.1109/ACCESS.2018.2795379

M3 - RGC 21 - Publication in refereed journal

SN - 2169-3536

VL - 6

SP - 10131

EP - 10138

JO - IEEE Access

JF - IEEE Access

ER -

A V-Band Doherty Power Amplifier Based on Voltage Combination and Balance Compensation Marchand Balun

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Research Keywords

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