A 2-20-GHz 10-W High-Efficiency GaN Power Amplifier Using Reactive Matching Technique

In this article, we present the analysis, design, and implementation of a wideband 10-W monolithic microwave integrated circuit power amplifier (PA), fabricated in a low-cost 0.1- \mu \text{m} gallium nitride (GaN) on Si technology. The design is focused on the realization of a low-loss and wideban...

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Veröffentlicht in:IEEE transactions on microwave theory and techniques 2020-07, Vol.68 (7), p.3148-3158
Hauptverfasser: Lin, Qian, Wu, Hai-Feng, Hua, Yu-Nan, Chen, Yi-Jun, Hu, Liu-Lin, Liu, Lin-Sheng, Chen, Shan-Ji
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container_issue 7
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container_title IEEE transactions on microwave theory and techniques
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creator Lin, Qian
Wu, Hai-Feng
Hua, Yu-Nan
Chen, Yi-Jun
Hu, Liu-Lin
Liu, Lin-Sheng
Chen, Shan-Ji
description In this article, we present the analysis, design, and implementation of a wideband 10-W monolithic microwave integrated circuit power amplifier (PA), fabricated in a low-cost 0.1- \mu \text{m} gallium nitride (GaN) on Si technology. The design is focused on the realization of a low-loss and wideband impedance transformation networks across 2-20 GHz using a reactive matching (RM) technique. The two-stage GaN PA achieves an average output power of 40.1 dBm and a peak output power of 41.6 dBm at 13 GHz, in the CW-mode operation, with a small-signal gain of S_{21} > 25.5 dB over the entire bandwidth. The average power-added efficiency (PAE) is 21%, with a peak PAE of 29% at 6 GHz. The PA chip occupies an area of 2.9\times 2.6 mm 2 . To the best of our knowledge, the PA presented in this work demonstrates the highest broadband gain among the reported GaN-based RMPAs with a corresponding output power of about 10 W.
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The design is focused on the realization of a low-loss and wideband impedance transformation networks across 2-20 GHz using a reactive matching (RM) technique. The two-stage GaN PA achieves an average output power of 40.1 dBm and a peak output power of 41.6 dBm at 13 GHz, in the CW-mode operation, with a small-signal gain of <inline-formula> <tex-math notation="LaTeX">S_{21} > 25.5 </tex-math></inline-formula> dB over the entire bandwidth. The average power-added efficiency (PAE) is 21%, with a peak PAE of 29% at 6 GHz. The PA chip occupies an area of <inline-formula> <tex-math notation="LaTeX">2.9\times 2.6 </tex-math></inline-formula> mm 2 . 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subjects Bandwidths
Broadband
Broadband communication
Circuit design
Gain
Gallium nitride
Gallium nitride (GaN) monolithic microwave integrated circuit (MMIC) power amplifier (PA)
Gallium nitrides
high-efficiency amplifier
Impedance
Ink
Integrated circuits
Load modeling
Matching
MMIC (circuits)
Power amplifiers
reactive matching (RM)
Transistors
title A 2-20-GHz 10-W High-Efficiency GaN Power Amplifier Using Reactive Matching Technique
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