X-Band High-Efficiency Continuous Class B Power Amplifier GaN MMIC Assisted by Input Second-Harmonic Tuning
This paper presents a high-efficiency continuous class B power amplifier MMIC (Monolithic Microwave Integrated Circuit) from 8 GHz to 10.5 GHz, fabricated with 0.25 μm GaN-on-SiC technology. The Pedro load-line method was performed to calculate the optimum load of the GaN field-effect trans...
Main Authors: | , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2019-11-01
|
Series: | Electronics |
Subjects: | |
Online Access: | https://www.mdpi.com/2079-9292/8/11/1312 |
id |
doaj-2e46763966994426adb6e11a0d6f2ae9 |
---|---|
record_format |
Article |
spelling |
doaj-2e46763966994426adb6e11a0d6f2ae92020-11-25T01:23:20ZengMDPI AGElectronics2079-92922019-11-01811131210.3390/electronics8111312electronics8111312X-Band High-Efficiency Continuous Class B Power Amplifier GaN MMIC Assisted by Input Second-Harmonic TuningChen Jin0Yuan Gao1Wei Chen2Jianhua Huang3Zhiyu Wang4Jiongjiong Mo5Faxin Yu6School of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310027, ChinaThe Project Management Center, Equipment Development Department, Beijing 100000, ChinaSchool of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310027, ChinaSchool of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310027, ChinaSchool of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310027, ChinaSchool of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310027, ChinaSchool of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310027, ChinaThis paper presents a high-efficiency continuous class B power amplifier MMIC (Monolithic Microwave Integrated Circuit) from 8 GHz to 10.5 GHz, fabricated with 0.25 μm GaN-on-SiC technology. The Pedro load-line method was performed to calculate the optimum load of the GaN field-effect transistor (FET) for efficiency enhancement. Optimized by an output second-harmonic tuned network, fundamental to second-harmonic impedance, mapping was established point-to-point within a broad frequency band, which approached the classic continuous class B mode with an expanded high-efficiency bandwidth. Moreover, the contribution to the output capacitance of the FET was introduced into the output second-harmonic tuned network, which simplified the structure of the output matching network. Assisted by the second-harmonic source-pull technique, the input second-harmonic tuned network was optimized to improve the efficiency of the power amplifier over the operation band. The measurement results showed 51−59% PAE (Power Added Efficiency) and 19.8−21.2 dB power gain with a saturated power of 40.8−42.2 dBm from 8 GHz to 10.5 GHz. The size of the chip was 3.2 × 2.4 mm<sup>2</sup>.https://www.mdpi.com/2079-9292/8/11/1312ganpower amplifierhigh efficiency |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Chen Jin Yuan Gao Wei Chen Jianhua Huang Zhiyu Wang Jiongjiong Mo Faxin Yu |
spellingShingle |
Chen Jin Yuan Gao Wei Chen Jianhua Huang Zhiyu Wang Jiongjiong Mo Faxin Yu X-Band High-Efficiency Continuous Class B Power Amplifier GaN MMIC Assisted by Input Second-Harmonic Tuning Electronics gan power amplifier high efficiency |
author_facet |
Chen Jin Yuan Gao Wei Chen Jianhua Huang Zhiyu Wang Jiongjiong Mo Faxin Yu |
author_sort |
Chen Jin |
title |
X-Band High-Efficiency Continuous Class B Power Amplifier GaN MMIC Assisted by Input Second-Harmonic Tuning |
title_short |
X-Band High-Efficiency Continuous Class B Power Amplifier GaN MMIC Assisted by Input Second-Harmonic Tuning |
title_full |
X-Band High-Efficiency Continuous Class B Power Amplifier GaN MMIC Assisted by Input Second-Harmonic Tuning |
title_fullStr |
X-Band High-Efficiency Continuous Class B Power Amplifier GaN MMIC Assisted by Input Second-Harmonic Tuning |
title_full_unstemmed |
X-Band High-Efficiency Continuous Class B Power Amplifier GaN MMIC Assisted by Input Second-Harmonic Tuning |
title_sort |
x-band high-efficiency continuous class b power amplifier gan mmic assisted by input second-harmonic tuning |
publisher |
MDPI AG |
series |
Electronics |
issn |
2079-9292 |
publishDate |
2019-11-01 |
description |
This paper presents a high-efficiency continuous class B power amplifier MMIC (Monolithic Microwave Integrated Circuit) from 8 GHz to 10.5 GHz, fabricated with 0.25 μm GaN-on-SiC technology. The Pedro load-line method was performed to calculate the optimum load of the GaN field-effect transistor (FET) for efficiency enhancement. Optimized by an output second-harmonic tuned network, fundamental to second-harmonic impedance, mapping was established point-to-point within a broad frequency band, which approached the classic continuous class B mode with an expanded high-efficiency bandwidth. Moreover, the contribution to the output capacitance of the FET was introduced into the output second-harmonic tuned network, which simplified the structure of the output matching network. Assisted by the second-harmonic source-pull technique, the input second-harmonic tuned network was optimized to improve the efficiency of the power amplifier over the operation band. The measurement results showed 51−59% PAE (Power Added Efficiency) and 19.8−21.2 dB power gain with a saturated power of 40.8−42.2 dBm from 8 GHz to 10.5 GHz. The size of the chip was 3.2 × 2.4 mm<sup>2</sup>. |
topic |
gan power amplifier high efficiency |
url |
https://www.mdpi.com/2079-9292/8/11/1312 |
work_keys_str_mv |
AT chenjin xbandhighefficiencycontinuousclassbpoweramplifierganmmicassistedbyinputsecondharmonictuning AT yuangao xbandhighefficiencycontinuousclassbpoweramplifierganmmicassistedbyinputsecondharmonictuning AT weichen xbandhighefficiencycontinuousclassbpoweramplifierganmmicassistedbyinputsecondharmonictuning AT jianhuahuang xbandhighefficiencycontinuousclassbpoweramplifierganmmicassistedbyinputsecondharmonictuning AT zhiyuwang xbandhighefficiencycontinuousclassbpoweramplifierganmmicassistedbyinputsecondharmonictuning AT jiongjiongmo xbandhighefficiencycontinuousclassbpoweramplifierganmmicassistedbyinputsecondharmonictuning AT faxinyu xbandhighefficiencycontinuousclassbpoweramplifierganmmicassistedbyinputsecondharmonictuning |
_version_ |
1725122840586354688 |