Results 11 to 20 of about 3,838,312 (316)
High $Q$ Antisymmetric Mode Lithium Niobate MEMS Resonators With Spurious Mitigation
Journal of Microelectromechanical Systems, 2020 This paper reports on the demonstrations of first-order antisymmetric Lamb wave (A1) mode resonator as a new platform for front-end filtering of the fifth-generation (5G) wireless communication.
Yansong Yang, Ruochen Lu, S. Gong
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A Laterally Excited Bulk Acoustic Wave Resonator Based on LiNbO3 with Arc-Shaped Electrodes [PDF]
MicromachinesHigh frequency and large bandwidth are growing trends in communication radio-frequency devices. The LiNbO3 thin film material is expected to become the preferred piezoelectric material for high coupling resonators in the 5G frequency band due to its ...
Jieyu Liu +4 more
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Frequency Response and Material Property Sensitivity Analysis of Moving-Coil Geophone Using Finite Element Simulation [PDF]
SensorsIn the process of unconventional oil and gas production, a large number of microseismic signals are generated. These signals are received by geophones deployed on the ground or in wells and used for safety monitoring.
Zesheng Yang +3 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
doaj +1 more source
IEEE Access, 2022 This article presents a mixed finite element method to find the resonant frequencies of 3-D closed cavity resonators filled with both electric and magnetic lossy, anisotropic media. By introducing a dummy variable with zero value in the 3-D linear vector
Wei Jiang, Shiling Zheng
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Steady low Mach number flows: Identification of the spurious mode and filtering method
Journal of Computational Physics, 2022 The aim of this article is to thoroughly identify the spurious mode that jeopardizes the convergence of usual upwind numerical schemes for compressible flows when the Mach number goes to 0 . We show that this spurious mode is the long time limit of a wave
Jonathan Jung, V. Perrier
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Photonics, 2022 In this study, the oscillation signal stabilization and spurious tone suppression of a directly modulated optoelectronic oscillator (DM-OEO) are simultaneously achieved by modulating a laser with a low-frequency radio frequency (RF) signal.
Jun-Hyung Cho +2 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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A Spurious-Free Characteristic Mode Formulation Based on Surface Integral Equation for Patch Antenna Structures [PDF]
IEEE Antennas and Wireless Propagation Letters, 2021 Conventional surface integral equation (SIE)-based characteristic mode formulation for the patch antenna structure with a finite substrate is susceptible to the spurious (nonphysical) modes due to the dielectric part.
Kun Fan +4 more
semanticscholar +1 more source
Materials, Design, and Characteristics of Bulk Acoustic Wave Resonator: A Review
Micromachines, 2020 With the rapid commercialization of fifth generation (5G) technology in the world, the market demand for radio frequency (RF) filters continues to grow.
Yan Liu +5 more
doaj +1 more source