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A GaN HEMT Amplifier Design for Phased Array Radars and 5G New Radios
Power amplifiers applied in modern active electronically scanned array (AESA) radars and 5G radios should have similar features, especially in terms of phase distortion, which dramatically affects the spectral regrowth and, moreover, they are difficult to be compensated by predistortion algorithms....
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7231363/ https://www.ncbi.nlm.nih.gov/pubmed/32290236 http://dx.doi.org/10.3390/mi11040398 |
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author | Kuchta, Dawid Gryglewski, Daniel Wojtasiak, Wojciech |
author_facet | Kuchta, Dawid Gryglewski, Daniel Wojtasiak, Wojciech |
author_sort | Kuchta, Dawid |
collection | PubMed |
description | Power amplifiers applied in modern active electronically scanned array (AESA) radars and 5G radios should have similar features, especially in terms of phase distortion, which dramatically affects the spectral regrowth and, moreover, they are difficult to be compensated by predistortion algorithms. This paper presents a GaN-based power amplifier design with a reduced level of transmittance distortions, varying in time, without significantly worsening other key features such as output power, efficiency and gain. The test amplifier with GaN-on-Si high electron mobility transistors (HEMT) NPT2018 from MACOM provides more than 17 W of output power at the 62% PAE over a 1.0 GHz to 1.1 GHz frequency range. By applying a proposed design approach, it was possible to decrease phase changes on test pulses from 0.5° to 0.2° and amplitude variation from 0.8 dB to 0.2 dB during the pulse width of 40 µs and 40% duty cycle. |
format | Online Article Text |
id | pubmed-7231363 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-72313632020-05-22 A GaN HEMT Amplifier Design for Phased Array Radars and 5G New Radios Kuchta, Dawid Gryglewski, Daniel Wojtasiak, Wojciech Micromachines (Basel) Article Power amplifiers applied in modern active electronically scanned array (AESA) radars and 5G radios should have similar features, especially in terms of phase distortion, which dramatically affects the spectral regrowth and, moreover, they are difficult to be compensated by predistortion algorithms. This paper presents a GaN-based power amplifier design with a reduced level of transmittance distortions, varying in time, without significantly worsening other key features such as output power, efficiency and gain. The test amplifier with GaN-on-Si high electron mobility transistors (HEMT) NPT2018 from MACOM provides more than 17 W of output power at the 62% PAE over a 1.0 GHz to 1.1 GHz frequency range. By applying a proposed design approach, it was possible to decrease phase changes on test pulses from 0.5° to 0.2° and amplitude variation from 0.8 dB to 0.2 dB during the pulse width of 40 µs and 40% duty cycle. MDPI 2020-04-10 /pmc/articles/PMC7231363/ /pubmed/32290236 http://dx.doi.org/10.3390/mi11040398 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Kuchta, Dawid Gryglewski, Daniel Wojtasiak, Wojciech A GaN HEMT Amplifier Design for Phased Array Radars and 5G New Radios |
title | A GaN HEMT Amplifier Design for Phased Array Radars and 5G New Radios |
title_full | A GaN HEMT Amplifier Design for Phased Array Radars and 5G New Radios |
title_fullStr | A GaN HEMT Amplifier Design for Phased Array Radars and 5G New Radios |
title_full_unstemmed | A GaN HEMT Amplifier Design for Phased Array Radars and 5G New Radios |
title_short | A GaN HEMT Amplifier Design for Phased Array Radars and 5G New Radios |
title_sort | gan hemt amplifier design for phased array radars and 5g new radios |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7231363/ https://www.ncbi.nlm.nih.gov/pubmed/32290236 http://dx.doi.org/10.3390/mi11040398 |
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