@misc{0004c98137df4f3eb59bce182a6da63c,
title = "L-band Lithium Niobate-On-Insulator SH0 Resonators Avoiding Transverse Spurious Modes through Electrode Apodization",
abstract = "This work discusses how apodization of the interdigital transducers (IDT) of shear horizontal (SH0) acoustic wave resonators allows to avoid the presence of spurious modes between resonances and enhance the achieved electromechanical coupling and quality factor. Achieving spurious-free resonators is fundamental to face the design of ladder filters with flat passbands. The proposal is demonstrated with manufactured resonators on a 30°YX-cut lithium niobate-on-insulator (LNOI) structure comparing the performance of apodized and non-apodized devices. Clean resonators without transverse spurious modes have been obtained showing an improvement in quality factor and electromechanical coupling coefficient, attaining k_t2=17 %, Q_max ∼ 800 and impedance ratios of 69 dB.",
keywords = "Acoustic resonator, apodization, IDT, lithium niobate on insulator, shear-horizontal mode",
author = "Lluis Acosta and Eloi Guerrero and Carlos Caballero and Jordi Verdu and Albert Guerrero and Xavier Borrise and Jaume Esteve and Paco, {Pedro De}",
note = "Publisher Copyright: {\textcopyright} 2023 European Microwave Association (EuMA).",
year = "2023",
doi = "10.23919/EuMC58039.2023.10290237",
language = "English",
series = "2023 53rd European Microwave Conference, EuMC 2023",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
address = "United States",
type = "Other",
}