[1] Yuan Cheng, Li Zhiqun, Liu Jihua, Wang Zhigong, et al. Design of CMOS class-E power amplifier for low power applications [J]. Journal of Southeast University (English Edition), 2009, 25 (2): 180-184. [doi:10.3969/j.issn.1003-7985.2009.02.008]

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Design of CMOS class-E power amplifier for low power applications()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

25

Issue:

2009 2

Page:

180-184

Research Field:

Circuit and System

Publishing date:

2009-06-30

Info

Title:

Design of CMOS class-E power amplifier for low power applications

Author(s):

Yuan Cheng;  Li Zhiqun;  Liu Jihua;  Wang Zhigong

Institute of RF- & OE-ICs, Southeast University, Nanjing 210096, China

Keywords:

class-E power amplifier;  complementary metal-oxide-semiconductor transistor(CMOS)technology;  low power application

PACS:

TN402

DOI:

10.3969/j.issn.1003-7985.2009.02.008

Abstract:

A fully integrated class-E power amplifier(PA)at 2.4 GHz implemented in a 0.18 μm 6-metal-layer mixed/RF CMOS(complementary metal-oxide-semiconductor transistor)technology is presented.A two-stage amplification structure is chosen for this PA.The driving stage produces a high swing switch signal by using resonation technology.The output stage is designed as a class-E topology to realize the power amplification.Under a 1.2 V power supply, the PA delivers a maximum output power of 8.8 dBm with a power-added efficiency(PAE)of 44%.A new power control method for the class-E power amplifier is described.By changing the amplitude and duty cycle of the signal which enters the class-E switch transistor, the output power can be covered from -3 to 8.8 dBm through a three-bit control word.The proposed PA can be used in low power applications, such as wireless sensor networks and biotelemetry systems.

References:

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Memo

Memo:

Biographies: Yuan Cheng(1984—), male, graduate;Li Zhiqun(corresponding author), male, doctor, professor, zhiqunli@seu.edu.cn.
Foundation item: The National High Technology Research and Development Program of China(863 Program)(No.2007AA01Z2A7).
Citation: Yuan Cheng, Li Zhiqun, Liu Jihua, et al.Design of CMOS class-E power amplifier for low power applications[J].Journal of Southeast University(English Edition), 2009, 25(2):180-184.

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