Design of a CMOS Distributed Power Amplifier with Gradual Changed Gain Cells

ZHANG Ying; LI Zeyou; YANG Hua; GENG Xiao; ZHANG Yi

doi:10.1049/cje.2018.09.012

Volume 27 Issue 6

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ZHANG Ying, LI Zeyou, YANG Hua, et al., “Design of a CMOS Distributed Power Amplifier with Gradual Changed Gain Cells,” Chinese Journal of Electronics, vol. 27, no. 6, pp. 1158-1162, 2018, doi: 10.1049/cje.2018.09.012

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ZHANG Ying, LI Zeyou, YANG Hua, et al., “Design of a CMOS Distributed Power Amplifier with Gradual Changed Gain Cells,” Chinese Journal of Electronics, vol. 27, no. 6, pp. 1158-1162, 2018, doi: 10.1049/cje.2018.09.012

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Design of a CMOS Distributed Power Amplifier with Gradual Changed Gain Cells

doi: 10.1049/cje.2018.09.012

ZHANG Ying^1,2,
LI Zeyou^1,2,
YANG Hua^1,2,
GENG Xiao^1,2,
ZHANG Yi^1,2

1.
College of Electronic and Optical Engineering, College of Microelectronics, Nanjing University of Posts and Telecommunications, Nanjing 210046, China;
2.
National and Local Joint Engineering Laboratory of RF Integration and Micro-Assembly Technology, Nanjing University of Posts and Telecommunications, Nanjing 210046, China

Funds: This work is supported by the National Natural Science Foundation of China (No.61106021), the Natural Science Foundation of the Jiangsu Higher Education Institutions of China (No.15KJB510020), and the Research Fund of Nanjing University of Posts and Telecommunications (No.NY218051).

Received Date: 2017-06-24
Rev Recd Date: 2018-04-20
Publish Date: 2018-11-10

Abstract

Abstract

A non-uniform Distributed power amplifier (DPA) is designed and implemented in a 0.18μm CMOS technology. The gradual changed gain cells work with the tapered on-chip inductors to construct non-uniform artificial transmission lines, which improves the output power and efficiency in a wide frequency band while maintaining good input and output impedance matching. The proposed DPA achieves 9dB average associated gain from 1 to 17.2GHz, and the input return loss is less than -9dB while the output return loss is less than -8.5dB in the desired frequency band. The output power at 1dB Output compression point (OP_1dB) is more than 7.8dBm in the frequency band of 2 -16GHz, and the peak power-added efficiency is 6.2% with the OP1dB 12.6dBm at 4GHz.
- Distributed amplifier,
- Impedance matching,
- Power added efficiency,
- Artificial transmission line

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References(16)

References

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