High quality factor lamb wave resonators

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August undefined, 2024

WebA high Figure-of-Merit (FOM) of 86.6 has been achieved for AlScN film based Lamb wave resonators below 1 GHz. The application potential of high scandium concentration … WebMay 22, 2012 · A Lamb wave resonator utilizing the QS(3) mode exhibits a low motional impedance of 91 Ω and a high Q of 551 … An AlN/3C-SiC composite layer enables the third-order quasi-symmetric (QS(3)) Lamb wave mode with a high quality factor (Q) characteristic and an ultra-high phase velocity up to 32395 ms(-1).

High Quality Factor Lamb Wave Resonators

WebSep 7, 2024 · The demonstrated resonator has a typical resonant frequency fs and an antiresonant frequency fp. The quality factor and the piezoelectric coupling factor are two … WebThe Lamb wave resonator (LWR) is considered by most researchers to be the preferred choice for miniaturized, high-performance, and low-power integrated resonators due to its high operating frequency, high electromechanical coupling coefficient, and low power consumption [3,4]. LWRs are considered to be highly desirable in the 300–800 MHz range fishermans mission mallaig

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WebCharlotte, N.C., April 11, 2024 (GLOBE NEWSWIRE) — Akoustis Technologies, Inc. ( NASDAQ: AKTS) (“Akoustis” or the “Company”), an integrated device manufacturer (IDM) of … WebSiddiqi, M.W.U.; Lee, J.E.-Y. Quality Factor Enhancement of AlN-on-Si Lamb Wave Resonators Using a Hybrid of Phononic Crystal Shapes in Anchoring Boundaries. In … WebDec 15, 2014 · In this report, basic analysis of the Lamb waves propagating in AlN and the device design techniques are presented in detail. Then, a novel technique to enhance the quality factor (Q) of Lamb wave resonator by utilizing an AlN plate formed in a butterfly … fishermans mission scrabster

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WebFeb 24, 2024 · : In this paper, a novel H-shaped radial phononic crystal (H-RPC) structure is proposed to suppress the anchor loss of a Lamb wave resonator (LWR), which has an … WebAs disclosed herein, methods of forming piezoelectric layers having alternating polarizations and related bulk acoustic wave filter devices. Pursuant to these embodiments, a method of forming a piezoelectric resonator device can include forming a first material, including metal and nitrogen atoms, using a first process to provide a first piezoelectric layer having the … fishermans mission suffolkWebMay 15, 2024 · 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 … canadian wood burning fireplaces

"WebApr 8, 2024 · The simulation results show that the structure can improve the instinct quality factor of the THz resonator to the order of 1 0 4 $1{0}^{4}$ when the bending radius is as small as 2mm. At the same time, sensitivity is increased by more than six times and uniform resonance curves are achieved from 0.45 ~ 0.55 $0.45\unicode{x0007E}0.55$ THz. " - High quality factor lamb wave resonators

High quality factor lamb wave resonators

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WebHigh Quality Factor Lamb Wave Resonators by Jie Zou Research Project Submitted to the Department of Electrical Engineering and Computer Sciences, University of California at … WebJan 6, 2015 · Jie Zou EECS Department University of California, Berkeley Technical Report No. UCB/EECS-2015-1 January 6, 2015 …

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WebJun 1, 2024 · This study reports a novel AlN Lamb wave resonator (LWR) with anti-resonance quality factor (Qa) as high as 4,021 for the first time, indicating an ultra-low acoustic loss. Conventionally, resonance quality factor (Qr) is widely studied and used for various comparisons. WebThis dissertation addresses a number of issues and demonstrated the high-performance (high-fs., large-k2, high-Q, low-TCF, and low-resonance impedance (Zmin)) piezoelectric AlN LWRs to fulfill the technical requests for the RF front-end. The k2 and fs optimization of the AlN LWR using the S0 Lamb wave mode is achieved by choosing electrode ...

WebJan 1, 2024 · The resonator had a high-resonance frequency (fr) of 5.44 GHz, a wide relative bandwidth of 12%, and a high-impedance ratio of 62 dB at fr and fa. This demonstrated a 5 GHz acoustic device that did not push the limits of optical lithography. However, the measured Q -factor at fr was only 70, unacceptably low for low-loss filter applications. WebRF channel-selection, where GHz quality factors above 20,000 are generally required. Capacitive-Piezoelectric Lamb Wave Resonator . Pursuant to improving upon this, Figure 1 presents a perspective-view illustration and cross-section of the ca-pacitive-piezoelectric AlN Lamb wave resonator demon-strated via this work.

WebJan 5, 2024 · In this paper, we propose the design of a dual-mode Lamb wave resonator (DLWR) and a RF dual-passband filter based on DLWRs. The DLWR consists of a piezoelectric film and two IDT arrays with different thicknesses. Moreover, DLWRs with four different electrode configurations are analyzed. WebMar 15, 2024 · Owning a superior quality factor ( Q) helps contribute to the advantages of microelectromechanical systems (MEMS) resonators due to its impact on the performance of MEMS technology-based oscillators and filters in IoTs and radio frequency applications.

WebMay 15, 2024 · High Quality-Factor and Spectrum-Clean AlN Lamb-Wave Resonators with Optimized Lateral Reflection Boundary Conditions and Transducer Design High Quality …

WebJul 14, 2024 · The fabricated resonator shows a 2nd-order symmetric (S2) resonance at 3.05 GHz with a high quality factor (Q) of 657, and a large k2 of 21.5% and a 6th-order symmetric (S6) resonance at 9.05 GHz with a high Q of 636 and a k2 of 3.71%, both among the highest demonstrated for higher-order Lamb wave devices. canadian women win soccer goldWebJan 31, 2024 · This work presents a novel ultra-high frequency Lamb mode Aluminum nitride piezoelectric resonator with enhanced quality factors ( Q ). With slots introduced in the … canadian wood design manualWebHome EECS at UC Berkeley fishermans mittensWebIn this paper, the design of a RF MEMS oscillator on a silicon-ceramic composite substrate using a high-Q Lamb-wave resonator as frequency-selective device is described. The MEMS resonator is designed on a 1.8 μm thick piezoelectric AlN layer, deposited on silicon using thin-film processes. fishermans missionsWebK&D Farms is a family owned and operated small-scale farm in Monroe, North Carolina. The main focus of our farm is to produce high quality produce with limited use of organically … canadian wood design manual pdfWebSep 1, 2024 · In general, high quality factor (Q), large effective electromechanical coupling coefficient (k 2), high frequency ability, and spurious free response can be significant aspects for acoustic wave elements to enable low-loss filters, ... such as Lamb wave resonators and/or boundary wave resonators. For example, any suitable combination of ... fisherman smockWebJun 5, 2011 · We report an AlN-on-Si Lamb wave resonator with a unique wide acoustic bandgap (ABG) phononic crystal (PnC) structure at its anchors that provides an almost 4 … canadian wooden flag dimensions