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

G Giribaldi, L Colombo, P Simeoni, M Rinaldi - nature communications, 2024 - nature.com
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 …

6-20 GHz 30% ScAlN Lateral Field-Excited Cross-sectional Lame'Mode Resonators for future mobile RF Front-Ends

G Giribaldi, L Colombo, M Rinaldi - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
This article reports on 30% scandium-doped AlN (ScAlN) lateral field-excited (LFE) cross-
sectional Lame'mode resonators (CLMRs) with unprecedented performance in the 6–20 …

Aluminum nitride combined overtone resonators for the 5G high frequency bands

G Chen, M Rinaldi - Journal of Microelectromechanical …, 2020 - ieeexplore.ieee.org
This work presents a new acoustic MEMS resonator technology, dubbed Aluminum Nitride
(AlN) Combined Overtone Resonator (COR), capable of addressing the filter requirements …

Characterization analysis of quality factor, electro-mechanical coupling and spurious modes for AlN Lamb-wave resonators with fs> 2 GHz

S Lv, Z Zhu, F Long, H Sun, C Song, A Zhang… - Microelectronics …, 2022 - Elsevier
In this paper, a systematical study is performed to analyze the quality factor,
electromechanical coupling (k 2 eff) and spurious modes of Lamb-wave resonators for the …

High quality-factor and spectrum-clean AlN lamb-wave resonators with optimized lateral reflection boundary conditions and transducer design

H Sun, S Lv, A Zhang, C Song, X Sun, F Tan, L Liang… - Micromachines, 2022 - mdpi.com
This paper presents a high quality-factor (Q) and spectrum-clean AlN Lamb-wave resonator
(LWR). The width of its lateral reflection boundary was optimized to weaken the transverse …

A quasi-LTI frequency-selective SAW circulator

G Michetti, C Cassella, F Pop, M Pirro… - 2018 IEEE …, 2018 - ieeexplore.ieee.org
A novel topology to obtain 3 port nonreciprocal propagation in a magnetless medium is here
presented. A modulation frequency of 15 MHz guarantees 10 dB of nonreciprocal contrast at …

A Comprehensive Approach for Total Suppression of In-Band Spurious Modes in UHF AlScN Lamb Wave Resonators and Filters

Z Tang, G Esteves, S Yen, TR Young… - Journal of …, 2024 - ieeexplore.ieee.org
In this paper, spurious mode suppression methods for Al Sc N Lamb wave resonators and
filters using the lowest order symmetric (S Lamb wave were meticulously studied and …

Analysis of high electromechanical coupling coefficient zinc oxide Lame'mode resonators and a design technique for spurious mode mitigation

TB Workie, P Tang, J Bao, K Hashimoto - Chinese Journal of Physics, 2022 - Elsevier
This paper presents an exhaustive analysis on Zinc Oxide based modified Lame'mode
resonators. Extensive analytical study describing the operating principles of the resonator is …

Spurious-Free Shear Horizontal Wave Resonators Based on 36Y-Cut LiNbO3 Thin Film

Y Liu, K Liu, J Li, Y Li, T Wu - Micromachines, 2024 - mdpi.com
This article presents lithium niobate (LiNbO3) based on shear horizontal (SH0) resonators,
utilizing a suspended structure, for radio frequency (RF) applications. It demonstrates the …

A near spurious-free 6 GHz laterally-excited bulk acoustic resonator with single-sided wavy electrodes

S Yang, W Liu, Z Wen, Y Xie, X Tong… - Journal of Physics D …, 2024 - iopscience.iop.org
Laterally excited bulk wave resonators demonstrate outstanding electromechanical coupling
coefficient (K eff 2) suitable for the design of wideband filters. However, it has not been …