Edge treatment for spurious mode suppression in thin-film lithium niobate resonators [PDF]
Scientific ReportsThin-film lithium niobate is an attractive material for RF acoustic devices because of its high electromechanical coupling. However, due to the large coupling and the high anisotropy, thin-film lithium niobate resonators are prone to accidental ...
Arjun Aryal +4 more
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High-Performance SAW Resonator with Spurious Mode Suppression Using Hexagonal Weighted Electrode Structure [PDF]
Sensors, 2023 Surface acoustic wave resonators are widely applied in electronics, communication, and other engineering fields. However, the spurious modes generally present in resonators can cause deterioration in device performance.
Yulong Liu +6 more
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Lateral Spurious Mode Suppression in Lithium Niobate A1 Resonators [PDF]
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2021 This work presents an improved design that exploits dispersion matching to suppress the spurious modes in the lithium niobate first-order antisymmetric (A1) Lamb wave mode resonators. The dispersion matching in this work is achieved by micro-machining the lithium niobate thin film to balance the electrical and mechanical loadings of electrodes. In this
Yansong Yang +3 more
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The Suppression of Spurious Modes in TC-SAW Resonators by the Application of Bent Metal Strips [PDF]
SensorsThis article investigates the use of bent metal strips on the top of a SiO2 layer for the suppression of spurious modes in temperature-compensated surface acoustic wave (TC-SAW) resonators employing a SiO2/Cu/128°YX-LiNbO3 structure.
Menghui Li +6 more
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Fabrication of Air Cavity Structures Using DRIE for Acoustic Signal Confinement in FBAR Devices [PDF]
MicromachinesAcoustic energy penetrates into the Si substrate at cavity boundaries. Due to this, the air cavity-based bulk acoustic resonators experience higher harmonic mode, parasitic resonance, and spurious mode.
Raju Patel +3 more
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Sub-6 GHz acoustic filters using laterally-excited bulk acoustic resonator with scattering vias in double-layer electrodes [PDF]
Microsystems & NanoengineeringThe suppression of in-band ripple and enhancement of power-handling capability (PHC) represent critical research imperatives for next-generation super-high-frequency (SHF) wideband filters.
Zhiwei Wen +8 more
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Micromachines, 2022 To cope with ubiquitous wireless connectivity and the increased and faster data delivery in 5G communication, surface acoustic wave (SAW) filters are progressively requiring wider bandwidths.
Zengtian Lu +6 more
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Wideband Bandpass TM Cavity Filters With Wide Spurious Free Band
IEEE Access, 2023 Recently, the spurious self-suppression method has been introduced and applied to the bandpass TM cavity filters to improve their stopband performance. However, this method has the limitation of being applicable only to TM narrow-band filters. This paper
Abdul Rehman, Cristiano Tomassoni
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Microwave Package Design for Superconducting Quantum Processors
PRX Quantum, 2021 Solid-state qubits with transition frequencies in the microwave regime, such as superconducting qubits, are at the forefront of quantum information processing.
Sihao Huang +12 more
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A Miniaturized Harmonic Reject Waveguide Filter for Ku-Band VSAT Transmitter
IEEE Access, 2023 In this paper, a novel miniaturized low-pass waveguide filter with wide stop-band is proposed for the harmonic rejection of Ku-band Very Small Aperture Terminal (VSAT) transmitters.
Xuejian Jiang +4 more
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