Lamb-wave resonator
WebbLamb wave resonators employing suspended edges [4]. For simplicity, Lamb wave resonators will be referred to in this work as grating-type and edge-type LWR, … http://lambwave.com/
Lamb-wave resonator
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Webb1 juli 2024 · This work reports on surface acoustic wave (SAW) and the super high frequency (SHF) Lamb wave resonators (LWR) with reflective gratings based on 400 nm-thick epitaxial Aluminum Scandium Nitride (AlScN) piezoelectric films. The films are grown on silicon substrates by molecular beam epitaxy (MBE), with … Webb19 apr. 2024 · AlN Lamb wave resonators enjoy advanced and attractive properties for enabling the next-generation single-chip radio frequency front-end, but their moderate …
Webb17 juni 2024 · A new one-port Lamb wave resonator showed a high frequency in the 5 GHz range, a wide bandwidth of 12%, and a high impedance ratio of 62 dB at resonant and antiresonant frequencies. WebbThe dispersion properties of Lamb waves and the influence of different electrode metals on the coupling coefficient in Al 0.7 Sc 0.3 N thin films were simulated. Al 0.7 Sc 0.3 N …
WebbAbstract: In the present work, a Lamb wave resonator based UV photodetector is fabricated using ZnO thin film grown on SiO 2 /Si membrane. Electrical studies of the fabricated ZnO/SiO 2 /Si Lamb wave resonator device reveals a change in current (I ON /I OFF ~ 10 4) upon UV illumination (λ = 365 nm, Intensity = 0.2 mW/cm 2) with a … Webb1 juni 2024 · The electromechanical coupling coefficient of the 285.3 MHz resonator presented in this paper is 5.33%, which is the highest among AlN based Lamb-wave resonators reported in literature.
WebbThis work reports the Lamb wave resonator based on 15% Sc-doped (Al 0.85 Sc 0.15 N) thin films using magnetron co-sputtering. The dispersion characteristics of Design and …
Webb6 aug. 2024 · Compared to surface acoustic waves, Lamb waves exhibit much higher phase velocity which support higher frequency operation with fabrication tolerance. To … omaha arts and therapy collaborativeWebb兰姆波是由英国理学家Lamb于1917年研究无限大板中的正弦波得到的发现的，因此又名板波。 兰姆波是当激励波波长与波导厚度处于同一数量级时，由横波和纵波耦合成的一种特殊形式的应力波。 兰姆波主要具备四 … is anyway a wordWebb1 jan. 2024 · Resonator Q values ∼4000 at 2 GHz and 2000 at 3.5 GHz have been estimated, approximately four times higher than for typical ‘leaky-wave’ SAW. However, … is any view or judgment drawn from factsWebb19 maj 2008 · In this paper, aluminum nitride (AlN) Lamb wave resonators (LWR) operating in air from room temperature up to 600°C are demonstrated for the first time. To date, no AlN RF devices have been tested… Expand 25 View 2 excerpts, cites background Fine frequency selection techniques for aluminum nitride Lamb wave resonators is anyway formalWebbLamb wave resonator-based torque sensor . Document Type and Number: United States Patent 11621694 . Abstract: A torque sensor chip including a semiconductor substrate, an acoustic reflector formed on the semiconductor substrate, and first and second Lamb wave resonators (LWRs). The first LWR is formed on a side of the acoustic ... omaha arts and entertainment awardsLamb waves propagate in solid plates or spheres. They are elastic waves whose particle motion lies in the plane that contains the direction of wave propagation and the direction perpendicular to the plate. In 1917, the English mathematician Horace Lamb published his classic analysis and description of acoustic … Visa mer In general, elastic waves in solid materials are guided by the boundaries of the media in which they propagate. An approach to guided wave propagation, widely used in physical acoustics, is to seek sinusoidal solutions to the Visa mer The symmetrical and antisymmetric zero-order modes deserve special attention. These modes have "nascent frequencies" of zero. Thus they are the only modes that exist over the entire … Visa mer While Lamb's analysis assumed a straight wavefront, it has been shown that the same characteristic equations apply to cylindrical plate waves (i.e. waves propagating outwards from a line source, the line lying perpendicular to the plate). The difference is … Visa mer The purpose of ultrasonic testing is usually to find and characterize individual flaws in the object being tested. Such flaws are detected when they reflect or scatter the impinging wave and … Visa mer Lamb waves exhibit velocity dispersion; that is, their velocity of propagation c depends on the frequency (or wavelength), as well … Visa mer As the frequency is raised, the higher-order wave modes make their appearance in addition to the zero-order modes. Each higher-order mode is “born” at a resonant frequency of the … Visa mer This phrase is quite often encountered in non-destructive testing. "Guided Lamb Waves" can be defined as Lamb-like waves that are … Visa mer omaha ar weather forecastWebbAbstract: This work reports the Lamb wave resonator based on Al 0.7 Sc 0.3 N thin films using magnetron sputtering with a single alloy target. The resonator fabrication process based on high Sc doping concentration is discussed. Al 0.7 Sc 0.3 N thin films with a 1.2° (0002) rocking curve were obtained with improved crystalline quality and reduced … is anyways a transition word