A Broadband Gain Amplifier Designed with the Models for Package and Diode Using 0.5 μm GaAs E-pHEMT Process

This paper presents a 50 MHz to 5 GHz broadband gain amplifier using a 0.5 μm gallium-arsenide pseudomorphic high-electron-mobility-transistor (GaAs pHEMT). For broadband design, a high gain cascode structure with a feedback network was used. To ensure the robustness of the design, the amplifier had...

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Autores principales: Min-Su Kim, Heesauk Jhon
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Lenguaje:EN
Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/56999d71b5c941d0b359bbdacbe2e97e
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spelling oai:doaj.org-article:56999d71b5c941d0b359bbdacbe2e97e2021-11-11T15:40:09ZA Broadband Gain Amplifier Designed with the Models for Package and Diode Using 0.5 μm GaAs E-pHEMT Process10.3390/electronics102126782079-9292https://doaj.org/article/56999d71b5c941d0b359bbdacbe2e97e2021-11-01T00:00:00Zhttps://www.mdpi.com/2079-9292/10/21/2678https://doaj.org/toc/2079-9292This paper presents a 50 MHz to 5 GHz broadband gain amplifier using a 0.5 μm gallium-arsenide pseudomorphic high-electron-mobility-transistor (GaAs pHEMT). For broadband design, a high gain cascode structure with a feedback network was used. To ensure the robustness of the design, the amplifier had to consider the effects of the Electrostatic Discharge (ESD)-protected diode and the package, which can degrade the broadband performance. Therefore, the equivalent circuit models of the package and the ESD-protected diode were analyzed and simulated in this paper. The designed broadband gain amplifier from 50 MHz to 5 GHz frequency band has a die size of 700 μm × 1000 μm and consumes 156 mW of dc power, and it was simulated with a gain of 18.7 dB to 20.6 dB, a P<sub>1</sub>dB of 15.3 to 16.9 dBm, and a OIP<sub>3</sub> of 26.5 to 31 dBm. Furthermore, the excellent gain flatness exhibited within 18.7 dB ± 1.92 dB at the interest of the frequency band.Min-Su KimHeesauk JhonMDPI AGarticlemedium power amplifierbroadband gain amplifierGaAs E-pHEMTfeedback networkDarlington amplifiercascode structureElectronicsTK7800-8360ENElectronics, Vol 10, Iss 2678, p 2678 (2021)
institution DOAJ
collection DOAJ
language EN
topic medium power amplifier
broadband gain amplifier
GaAs E-pHEMT
feedback network
Darlington amplifier
cascode structure
Electronics
TK7800-8360
spellingShingle medium power amplifier
broadband gain amplifier
GaAs E-pHEMT
feedback network
Darlington amplifier
cascode structure
Electronics
TK7800-8360
Min-Su Kim
Heesauk Jhon
A Broadband Gain Amplifier Designed with the Models for Package and Diode Using 0.5 μm GaAs E-pHEMT Process
description This paper presents a 50 MHz to 5 GHz broadband gain amplifier using a 0.5 μm gallium-arsenide pseudomorphic high-electron-mobility-transistor (GaAs pHEMT). For broadband design, a high gain cascode structure with a feedback network was used. To ensure the robustness of the design, the amplifier had to consider the effects of the Electrostatic Discharge (ESD)-protected diode and the package, which can degrade the broadband performance. Therefore, the equivalent circuit models of the package and the ESD-protected diode were analyzed and simulated in this paper. The designed broadband gain amplifier from 50 MHz to 5 GHz frequency band has a die size of 700 μm × 1000 μm and consumes 156 mW of dc power, and it was simulated with a gain of 18.7 dB to 20.6 dB, a P<sub>1</sub>dB of 15.3 to 16.9 dBm, and a OIP<sub>3</sub> of 26.5 to 31 dBm. Furthermore, the excellent gain flatness exhibited within 18.7 dB ± 1.92 dB at the interest of the frequency band.
format article
author Min-Su Kim
Heesauk Jhon
author_facet Min-Su Kim
Heesauk Jhon
author_sort Min-Su Kim
title A Broadband Gain Amplifier Designed with the Models for Package and Diode Using 0.5 μm GaAs E-pHEMT Process
title_short A Broadband Gain Amplifier Designed with the Models for Package and Diode Using 0.5 μm GaAs E-pHEMT Process
title_full A Broadband Gain Amplifier Designed with the Models for Package and Diode Using 0.5 μm GaAs E-pHEMT Process
title_fullStr A Broadband Gain Amplifier Designed with the Models for Package and Diode Using 0.5 μm GaAs E-pHEMT Process
title_full_unstemmed A Broadband Gain Amplifier Designed with the Models for Package and Diode Using 0.5 μm GaAs E-pHEMT Process
title_sort broadband gain amplifier designed with the models for package and diode using 0.5 μm gaas e-phemt process
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/56999d71b5c941d0b359bbdacbe2e97e
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