5 GHz Acoustic Delay Lines using Antisymmetric Mode in Lithium Niobate Thin Film

Ruochen Lu; Yansong Yang; Michael Breen; Ming Huang Li; Songbin Gong

doi:10.1109/ULTSYM.2019.8926305

5 GHz Acoustic Delay Lines using Antisymmetric Mode in Lithium Niobate Thin Film

Ruochen Lu, Yansong Yang, Michael Breen, Ming Huang Li, Songbin Gong

Research output: Chapter in Book/Conference Proceeding/Report › Conference Paper published in a book › peer-review

3 Citations (Scopus)

Abstract

This paper demonstrates the first group of acoustic delay lines (ADLs) at 5 GHz, using the first-order antisymmetric (A1) mode in Z-cut lithium niobate thin films. Thanks to the fast phase velocity, large coupling coefficient, and low-loss of A1 waves, the implemented ADLs significantly surpass the operation frequency of precious works with similar feature sizes. The impact of the key design parameters on the device performance is first discussed. The implemented ADLs at 5 GHz show a minimum insertion loss of 7.9 dB, and delays ranging between 15 ns and 109 ns over a fractional bandwidth around 4%. The propagation characteristics of A1 mode acoustic waves have also been extracted for the first time. The A1 ADLs can potentially enable wideband high-frequency passive signal processing functions for future 5G applications in the sub-6 GHz spectrum bands.

Original language	English
Title of host publication	2019 IEEE International Ultrasonics Symposium, IUS 2019
Publisher	IEEE Computer Society
Pages	265-268
Number of pages	4
ISBN (Electronic)	9781728145969
DOIs	https://doi.org/10.1109/ULTSYM.2019.8926305
Publication status	Published - Oct 2019
Externally published	Yes
Event	2019 IEEE International Ultrasonics Symposium, IUS 2019 - Glasgow, United Kingdom Duration: 6 Oct 2019 → 9 Oct 2019

Publication series

Name	IEEE International Ultrasonics Symposium, IUS
Volume	2019-October
ISSN (Print)	1948-5719
ISSN (Electronic)	1948-5727

Conference

Conference	2019 IEEE International Ultrasonics Symposium, IUS 2019
Country/Territory	United Kingdom
City	Glasgow
Period	6/10/19 → 9/10/19

Bibliographical note

Publisher Copyright:
© 2019 IEEE.

Keywords

A1 mode
Acoustic delay line
lithium niobate
microelectro-mechanical systems
piezoelectricity

Access to Document

10.1109/ULTSYM.2019.8926305

Cite this

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title = "5 GHz Acoustic Delay Lines using Antisymmetric Mode in Lithium Niobate Thin Film",

abstract = "This paper demonstrates the first group of acoustic delay lines (ADLs) at 5 GHz, using the first-order antisymmetric (A1) mode in Z-cut lithium niobate thin films. Thanks to the fast phase velocity, large coupling coefficient, and low-loss of A1 waves, the implemented ADLs significantly surpass the operation frequency of precious works with similar feature sizes. The impact of the key design parameters on the device performance is first discussed. The implemented ADLs at 5 GHz show a minimum insertion loss of 7.9 dB, and delays ranging between 15 ns and 109 ns over a fractional bandwidth around 4\%. The propagation characteristics of A1 mode acoustic waves have also been extracted for the first time. The A1 ADLs can potentially enable wideband high-frequency passive signal processing functions for future 5G applications in the sub-6 GHz spectrum bands.",

keywords = "A1 mode, Acoustic delay line, lithium niobate, microelectro-mechanical systems, piezoelectricity",

author = "Ruochen Lu and Yansong Yang and Michael Breen and Li, \{Ming Huang\} and Songbin Gong",

note = "Publisher Copyright: {\textcopyright} 2019 IEEE.; 2019 IEEE International Ultrasonics Symposium, IUS 2019 ; Conference date: 06-10-2019 Through 09-10-2019",

year = "2019",

month = oct,

doi = "10.1109/ULTSYM.2019.8926305",

language = "English",

series = "IEEE International Ultrasonics Symposium, IUS",

publisher = "IEEE Computer Society",

pages = "265--268",

booktitle = "2019 IEEE International Ultrasonics Symposium, IUS 2019",

}

Lu, R, Yang, Y, Breen, M, Li, MH & Gong, S 2019, 5 GHz Acoustic Delay Lines using Antisymmetric Mode in Lithium Niobate Thin Film. in 2019 IEEE International Ultrasonics Symposium, IUS 2019., 8926305, IEEE International Ultrasonics Symposium, IUS, vol. 2019-October, IEEE Computer Society, pp. 265-268, 2019 IEEE International Ultrasonics Symposium, IUS 2019, Glasgow, United Kingdom, 6/10/19. https://doi.org/10.1109/ULTSYM.2019.8926305

5 GHz Acoustic Delay Lines using Antisymmetric Mode in Lithium Niobate Thin Film. / Lu, Ruochen; Yang, Yansong; Breen, Michael et al.
2019 IEEE International Ultrasonics Symposium, IUS 2019. IEEE Computer Society, 2019. p. 265-268 8926305 (IEEE International Ultrasonics Symposium, IUS; Vol. 2019-October).

Research output: Chapter in Book/Conference Proceeding/Report › Conference Paper published in a book › peer-review

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N2 - This paper demonstrates the first group of acoustic delay lines (ADLs) at 5 GHz, using the first-order antisymmetric (A1) mode in Z-cut lithium niobate thin films. Thanks to the fast phase velocity, large coupling coefficient, and low-loss of A1 waves, the implemented ADLs significantly surpass the operation frequency of precious works with similar feature sizes. The impact of the key design parameters on the device performance is first discussed. The implemented ADLs at 5 GHz show a minimum insertion loss of 7.9 dB, and delays ranging between 15 ns and 109 ns over a fractional bandwidth around 4%. The propagation characteristics of A1 mode acoustic waves have also been extracted for the first time. The A1 ADLs can potentially enable wideband high-frequency passive signal processing functions for future 5G applications in the sub-6 GHz spectrum bands.

AB - This paper demonstrates the first group of acoustic delay lines (ADLs) at 5 GHz, using the first-order antisymmetric (A1) mode in Z-cut lithium niobate thin films. Thanks to the fast phase velocity, large coupling coefficient, and low-loss of A1 waves, the implemented ADLs significantly surpass the operation frequency of precious works with similar feature sizes. The impact of the key design parameters on the device performance is first discussed. The implemented ADLs at 5 GHz show a minimum insertion loss of 7.9 dB, and delays ranging between 15 ns and 109 ns over a fractional bandwidth around 4%. The propagation characteristics of A1 mode acoustic waves have also been extracted for the first time. The A1 ADLs can potentially enable wideband high-frequency passive signal processing functions for future 5G applications in the sub-6 GHz spectrum bands.

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KW - microelectro-mechanical systems

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5 GHz Acoustic Delay Lines using Antisymmetric Mode in Lithium Niobate Thin Film

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