Results 1 to 10 of about 3,838,312 (316)
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
doaj +3 more sources
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
semanticscholar +6 more sources
Fixed-Frequency Control of Piezoelectric Resonator DC-DC Converters for Spurious Mode Avoidance
IEEE Open Journal of Power Electronics, 2021 Piezoelectric resonators have shown promise as efficient, power-dense energy storage element alternatives to continue the miniaturization of DC-DC converters.
Eric Stolt +6 more
doaj +2 more sources
Spurious modes in extended RPA theories [PDF]
The European Physical Journal A, 2003 Necessary conditions that the spurious state associated with the translational motion and its double-phonon state have zero excitation energy in extended RPA (ERPA) theories which include both one-body and two-body amplitudes are investigated using the ...
Adachi +34 more
core +3 more sources
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
doaj +2 more sources
IEEE Access, 2020 This article presents a Ka-band fourth-order slotted spherical resonator waveguide bandpass filter (BPF) with a wide spurious suppression stopband.
Fan Zhang +9 more
doaj +2 more sources
Transverse Spurious Mode Compensation for AlN Lamb Wave Resonators
IEEE Access, 2019 Lamb wave modes with type I dispersion characteristics exhibit strong affinity toward multi transverse modes behavior above resonance frequency (fr) in the AlN Lamb wave resonators (LWRs), especially the high-transduction-efficiency modes: S0 and S1 mode.
Jie Zou, Jiansong Liu, Gongbin Tang
doaj +2 more sources
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
doaj +2 more sources
Spurious mode reduction in dual injection-locked optoelectronic oscillators
Optics Express, 2011 Optoelectronic oscillators (OEOs) are promising sources of low phase noise radio frequency (RF) signals. However, at X-band frequencies, the long optical fiber delay line required for a high oscillator Q also leads to spurious modes (spurs) spaced too narrowly to be filtered by RF filters.
O, Okusaga +6 more
openaire +3 more sources
Free-form catenary-inspired meta-couplers for ultra-high or broadband vertical coupling [PDF]
NanophotonicsMetasurface-assisted waveguide couplers, or meta-couplers, innovatively link free-space optics with on-chip devices, offering flexibility for polarization and wavelength (de)multiplexing, mode-selective coupling, and guided mode manipulation.
Chen Tianqu +11 more
doaj +2 more sources