[1] Zhang Ying, , Ma Kaixue, et al. Design of a distributed power amplifierbased on T-type matching networks [J]. Journal of Southeast University (English Edition), 2016, 32 (3): 278-284. [doi:10.3969/j.issn.1003-7985.2016.03.004]

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Design of a distributed power amplifierbased on T-type matching networks()

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

Volumn:

32

Issue:

2016 3

Page:

278-284

Research Field:

Circuit and System

Publishing date:

2016-09-20

Info

Title:

Design of a distributed power amplifierbased on T-type matching networks

Author(s):

Zhang Ying¹;  2;  3;  Ma Kaixue³;  Zhou Hongmin¹;  Guo Yufeng¹;  2

¹College of Electronics Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210046, China
²National and Local Joint Engineering Laboratory of Radio Frequency Integration and Micro Assembly Technology, Nanjing University of Posts and Telecommunications, Nanjing 210046, China
³School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 611731, China

Keywords:

distributed amplifier;  impedance matching;  power added efficiency;  T-type network

PACS:

TN43

DOI:

10.3969/j.issn.1003-7985.2016.03.004

Abstract:

The impedance characteristics of distributed amplifiers are analyzed based on T-type matching networks, and a distributed power amplifier consisting of three gain cells is proposed. Non-uniform T-type matching networks are adopted to make the impedance of artificial transmission lines connected to the gate and drain change stage by stage gradually, which provides good impedance matching and improves the output power and efficiency. The measurement results show that the amplifier gives an average forward gain of 6 dB from 3 to 16.5 GHz. In the desired band, the input return loss is typically less than -9.5 dB, and the output return loss is better than -8.5 dB. The output power at 1-dB gain compression point is from 3.6 to 10.6 dBm in the band of 2 to 16 GHz while the power added efficiency(PAE)is from 2% to 12.5%. The power consumption of the amplifier is 81 mW with a supply of 1.8 V, and the chip area is 0.91 mm×0.45 mm.

References:

[1] Nikandish G, Medi A. Unilateralization of MMIC distributed amplifiers [J]. IEEE Transactions on Microwave Theory and Techniques. 2014, 62(12): 3041-3052. DOI:10.1109/tmtt.2014.2361341.
[2] Kim J, Kim Y, Lee S, et al. A broadband power-reconfigurable distributed amplifier [C]//IEEE MTT-S International Microwave Symposium Digest. Montreal, Canada, 2012: 1-3.
[3] Zhang Y, Wang Z G, Xu J, et al. Design of a low noise distributed amplifier with adjustable gain control in 0.15 μm GaAs PHEMT [J]. Journal of Semiconductors, 2012, 33(3): 035003-1-035003-4. DOI:10.1088/1674-4926/33/3/035003. [4] Chen J S, Niknejad A M. Design and analysis of a stage-scaled distributed power amplifier [J]. IEEE Transactions on Microwave Theory and Techniques, 2011, 59(5): 1274-1283. DOI:10.1109/tmtt.2011.2125985.
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[8] Kao J-C, Chen P, Huang P-C, et al. A novel distributed amplifier with high gain, low noise, and high output power in 0.18-μm CMOS Technology [J]. IEEE Transactions on Microwave Theory and Techniques, 2013, 61(4): 1533-1542.
[9] Ersoy E, Chevtchenko S, Kurpas P, et al. A compact GaN-MMIC non-uniform distributed power amplifier for 2 to 12 GHz [C]//German Microwave Conference. Aachen, Germany, 2014: 1-3.
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Memo

Memo:

Biography: Zhang Ying(1980—), male, doctor, associate professor, zhangying@njupt.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.61106021), the Postdoctoral Science Foundation of China(No.2015M582541), the Natural Science Foundation of Higher Education Institutions of Jiangsu Province(No.15KJB510020), the Research Fund of Nanjing University of Posts and Telecommunications(No.NY215140, No.NY215167).
Citation: Zhang Ying, Ma Kaixue, Zhou Hongmin, et al. Design of a distributed power amplifier based on T-type matching networks[J].Journal of Southeast University(English Edition), 2016, 32(3):278-284.DOI:10.3969/j.issn.1003-7985.2016.03.004.

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