Spectrum Modeling of Out-of-Band Intermodulation for Dual-Band RF Amplifiers in OFDM Modulation

Dual-band RF amplifiers play increasingly important roles in next-generation mobile communication systems including 5G, and the out-of-band intermodulation products are often not negligible since they generate interference to adjacent channels. In this article, following our previous modeling of cro...

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Main Authors: Xianzhen Yang, Siyuan Yan, Xiao Li, Qiang Wu, Fu Li
Format: Article
Language:English
Published: MDPI AG 2020-04-01
Series:Electronics
Subjects:
Online Access:https://www.mdpi.com/2079-9292/9/4/691
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author Xianzhen Yang
Siyuan Yan
Xiao Li
Qiang Wu
Fu Li
author_facet Xianzhen Yang
Siyuan Yan
Xiao Li
Qiang Wu
Fu Li
author_sort Xianzhen Yang
collection DOAJ
description Dual-band RF amplifiers play increasingly important roles in next-generation mobile communication systems including 5G, and the out-of-band intermodulation products are often not negligible since they generate interference to adjacent channels. In this article, following our previous modeling of cross-modulation for amplified dual-band signals, an analytical expression of out-of-band intermodulation for dual-band orthogonal frequency-division multiplexing signals is derived using the third-order intercept points <inline-formula> <math display="inline"> <semantics> <mrow> <mi>I</mi> <msub> <mi>P</mi> <mn>3</mn> </msub> </mrow> </semantics> </math> </inline-formula>. The experimental measurement results validate the proposed analytical expression.
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spelling doaj.art-bb0c90fe8c4a46a688278f4e289d1aba2023-11-19T22:37:17ZengMDPI AGElectronics2079-92922020-04-019469110.3390/electronics9040691Spectrum Modeling of Out-of-Band Intermodulation for Dual-Band RF Amplifiers in OFDM ModulationXianzhen Yang0Siyuan Yan1Xiao Li2Qiang Wu3Fu Li4Department of Electrical and Computing Engineering, Portland State University, Portland, OR 97207-0751, USADepartment of Electrical and Computing Engineering, Portland State University, Portland, OR 97207-0751, USADepartment of Electrical and Computing Engineering, Portland State University, Portland, OR 97207-0751, USAAnalog Devices, 125 Summer Street, Suite 2100, Boston, MA 02110, USADepartment of Electrical and Computing Engineering, Portland State University, Portland, OR 97207-0751, USADual-band RF amplifiers play increasingly important roles in next-generation mobile communication systems including 5G, and the out-of-band intermodulation products are often not negligible since they generate interference to adjacent channels. In this article, following our previous modeling of cross-modulation for amplified dual-band signals, an analytical expression of out-of-band intermodulation for dual-band orthogonal frequency-division multiplexing signals is derived using the third-order intercept points <inline-formula> <math display="inline"> <semantics> <mrow> <mi>I</mi> <msub> <mi>P</mi> <mn>3</mn> </msub> </mrow> </semantics> </math> </inline-formula>. The experimental measurement results validate the proposed analytical expression.https://www.mdpi.com/2079-9292/9/4/691out-of-band intermodulationdual-band RF amplifiersorthogonal frequency-division multiplexingcognitive radio5G
spellingShingle Xianzhen Yang
Siyuan Yan
Xiao Li
Qiang Wu
Fu Li
Spectrum Modeling of Out-of-Band Intermodulation for Dual-Band RF Amplifiers in OFDM Modulation
Electronics
out-of-band intermodulation
dual-band RF amplifiers
orthogonal frequency-division multiplexing
cognitive radio
5G
title Spectrum Modeling of Out-of-Band Intermodulation for Dual-Band RF Amplifiers in OFDM Modulation
title_full Spectrum Modeling of Out-of-Band Intermodulation for Dual-Band RF Amplifiers in OFDM Modulation
title_fullStr Spectrum Modeling of Out-of-Band Intermodulation for Dual-Band RF Amplifiers in OFDM Modulation
title_full_unstemmed Spectrum Modeling of Out-of-Band Intermodulation for Dual-Band RF Amplifiers in OFDM Modulation
title_short Spectrum Modeling of Out-of-Band Intermodulation for Dual-Band RF Amplifiers in OFDM Modulation
title_sort spectrum modeling of out of band intermodulation for dual band rf amplifiers in ofdm modulation
topic out-of-band intermodulation
dual-band RF amplifiers
orthogonal frequency-division multiplexing
cognitive radio
5G
url https://www.mdpi.com/2079-9292/9/4/691
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