Compact and wideband nanoacoustic pass-band filters for future 5G and 6G cellular radios

Abstract Over recent years, the surge in mobile communication has deepened global connectivity. With escalating demands for faster data rates, the push for higher carrier frequencies intensifies. The 7–20 GHz range, located between the 5G sub-6 GHz and the mm-wave spectra, provides an excellent trad...

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Main Authors: Gabriel Giribaldi, Luca Colombo, Pietro Simeoni, Matteo Rinaldi
Format: Article
Language:English
Published: Nature Portfolio 2024-01-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-023-44038-9
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author Gabriel Giribaldi
Luca Colombo
Pietro Simeoni
Matteo Rinaldi
author_facet Gabriel Giribaldi
Luca Colombo
Pietro Simeoni
Matteo Rinaldi
author_sort Gabriel Giribaldi
collection DOAJ
description Abstract Over recent years, the surge in mobile communication has deepened global connectivity. With escalating demands for faster data rates, the push for higher carrier frequencies intensifies. The 7–20 GHz range, located between the 5G sub-6 GHz and the mm-wave spectra, provides an excellent trade-off between network capacity and coverage, and constitutes a yet-to-be-explored range for 5G and 6G applications. This work proposes a technological platform able to deliver CMOS-compatible, on-chip multi-frequency, low-loss, wide-band, and compact filters for cellular radios operating in this range by leveraging the micro-to-nano scaling of acoustic electromechanical resonators. The results showcase the first-ever demonstrated low insertion loss bank of 7 nanoacoustic passband filters in the X-band. Most of the filters showcase fractional bandwidths above 3% and sub-dB loss per stage in an extremely compact form factor, enabling the manufacturing of filters and duplexers for the next generation of mobile handsets operating in the X-band and beyond.
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spelling doaj.art-32a9b3b828be436e88f86deeca2f2a932024-03-05T19:34:29ZengNature PortfolioNature Communications2041-17232024-01-0115111310.1038/s41467-023-44038-9Compact and wideband nanoacoustic pass-band filters for future 5G and 6G cellular radiosGabriel Giribaldi0Luca Colombo1Pietro Simeoni2Matteo Rinaldi3NanoSI Institute, Northeastern UniversityNanoSI Institute, Northeastern UniversityNanoSI Institute, Northeastern UniversityNanoSI Institute, Northeastern UniversityAbstract Over recent years, the surge in mobile communication has deepened global connectivity. With escalating demands for faster data rates, the push for higher carrier frequencies intensifies. The 7–20 GHz range, located between the 5G sub-6 GHz and the mm-wave spectra, provides an excellent trade-off between network capacity and coverage, and constitutes a yet-to-be-explored range for 5G and 6G applications. This work proposes a technological platform able to deliver CMOS-compatible, on-chip multi-frequency, low-loss, wide-band, and compact filters for cellular radios operating in this range by leveraging the micro-to-nano scaling of acoustic electromechanical resonators. The results showcase the first-ever demonstrated low insertion loss bank of 7 nanoacoustic passband filters in the X-band. Most of the filters showcase fractional bandwidths above 3% and sub-dB loss per stage in an extremely compact form factor, enabling the manufacturing of filters and duplexers for the next generation of mobile handsets operating in the X-band and beyond.https://doi.org/10.1038/s41467-023-44038-9
spellingShingle Gabriel Giribaldi
Luca Colombo
Pietro Simeoni
Matteo Rinaldi
Compact and wideband nanoacoustic pass-band filters for future 5G and 6G cellular radios
Nature Communications
title Compact and wideband nanoacoustic pass-band filters for future 5G and 6G cellular radios
title_full Compact and wideband nanoacoustic pass-band filters for future 5G and 6G cellular radios
title_fullStr Compact and wideband nanoacoustic pass-band filters for future 5G and 6G cellular radios
title_full_unstemmed Compact and wideband nanoacoustic pass-band filters for future 5G and 6G cellular radios
title_short Compact and wideband nanoacoustic pass-band filters for future 5G and 6G cellular radios
title_sort compact and wideband nanoacoustic pass band filters for future 5g and 6g cellular radios
url https://doi.org/10.1038/s41467-023-44038-9
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