GHz Broadband SH0 Mode Lithium Niobate Acoustic Delay Lines.

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ID: 55965
2019
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Ranked #8 of 12 articles by views in IEEE transactions on ultrasonics, ferroelectrics, and frequency control

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Abstract
We present the first group of GHz broadband SH0 mode acoustic delay lines. The implemented acoustic delay lines adopt unidirectional transducer designs in a suspended X-cut lithium niobate thin film. The design space of the SH0 mode acoustic delay lines at GHz is first theoretically investigated, showing that the large coupling and sufficient spectral clearance to adjacent modes collectively enable the broadband performance of SH0 delay lines. The fabricated devices show 3-dB fractional bandwidth ranging from 4% to 34.3%, insertion loss between 3.4 dB and 11.3 dB. Multiple delay lines have been demonstrated with center frequencies from 0.7 GHz to 1.2 GHz, showing great frequency scalability. The propagation characteristics of SH0 in lithium niobate thin film are experimentally extracted. The demonstrated acoustic delay lines can potentially facilitate broadband signal processing applications.
Reference Key
lu2019ghzieee Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Lu, Ruochen;Yang, Yansong;Li, Ming-Huang;Manzaneque, Tomas;Gong, Songbin;
Journal IEEE transactions on ultrasonics, ferroelectrics, and frequency control
Year 2019
DOI
10.1109/TUFFC.2019.2943355
URL
Keywords
Functional connectivity auditory search asymmetry dorsal attention network p3a p3b ventral attention network

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