Topics

Simulation of Nonlinear Resonance, Amplitude-Frequency, and Harmonic Generation Effects in SAW and BAW Devices.

08:00 EDT 4th October 2019 | BioPortfolio

Summary of "Simulation of Nonlinear Resonance, Amplitude-Frequency, and Harmonic Generation Effects in SAW and BAW Devices."

Nonlinearly coupled sets of piezoelectric field equations in the frequency domain were derived for the nonlinear propagation of finite amplitude waves in piezoelectric bulk acoustic wave (BAW) and surface acoustic wave (SAW) devices. To verify their accuracy, we have embedded these sets of equations in the finite element method (FEM) of COMSOL Multiphysics software, and compared the FEM results with both analytical and experimental results found in the published literature. The nonlinear frequency responses for both plano-and contouredplate resonators of AT-cut quartz were investigated under various voltage drives, circuit resistances and quality factors. The proposed equations with FEM have also been employed to study 33.3 MHz very high frequency (VHF) quartz resonators showing that under different conditions of how well the third overtone mode (f3) matches third harmonic (3f), and how the fractional frequency shift of the third overtone mode (f3) occurs as a function of the fundamental mode current. Furthermore, we have studied the nonlinear harmonic generation of an 840 MHz 128° Y-cut Xpropagating (128° YX) LiNbO3 SAW resonator. Second harmonic (H2) and third harmonic (H3) modes were observed to occur respectively at two-times (2f) and three-times (3f) frequencies of fundamental frequency (f) when such resonators were driven with high power. The effects of substrate thickness, bottom surface conditions of the substrate, and different circuit connections on the H2 and H3 generation were simulated and compared with available measurements. Current proposed sets of equations are general and could be used for the study of nonlinear resonance, amplitude-frequency effect and harmonic generation in any piezoelectric devices provided that the necessary nonlinear material constants are known.

Affiliation

Journal Details

This article was published in the following journal.

Name: IEEE transactions on ultrasonics, ferroelectrics, and frequency control
ISSN: 1525-8955
Pages:

Links

DeepDyve research library

PubMed Articles [24771 Associated PubMed Articles listed on BioPortfolio]

Photonic microwave harmonic down-converter based on stabilized period-one nonlinear dynamics of semiconductor lasers.

Photonic microwave harmonic down-conversion is demonstrated using an optically injected semiconductor laser operating at period-one (P1) nonlinear dynamics. In this method, the P1 oscillation is stabi...

High-efficiency second-harmonic generation of low-temporal-coherent light pulse.

The nonlinear frequency conversion of low-temporal-coherent light holds a variety of applications and has attracted considerable interest. However, its physical mechanism remains relatively unexplored...

The effect of large amplitude vibration on the pressure-dependent absorption of a structure multiple cavity system.

This study addresses the effects of large-amplitude vibration on the pressure-dependent absorption of a structure multiple-cavity system. It is the first study to consider the effects of large-amplitu...

Second-harmonic generation and self-phase modulation of few-cycle mid-infrared pulses.

Near-single-cycle mid-infrared pulses with a spectrum covering 5.4-11 μm are efficiently frequency-doubled in different GaSe crystals. The second-harmonic spectrum spans 3-4.3 μm at a power conver...

Evidence of cascaded third harmonic generation in non centrosymmetric gold nanoantennas.

The optimization of nonlinear optical processes at the nanoscale is a crucial step for the integration of complex functionalities into compact photonic devices and metasurfaces. In such systems, photo...

Clinical Trials [7123 Associated Clinical Trials listed on BioPortfolio]

Investigation of Hemoglobin Oxygenation With Third Harmonic Generation Microscopy

The specific aims of the project are performing a pre-clinical study on a human model and evaluating the oxygenation status of human erythrocytes by spectrally-resolved third harmonic gene...

Thyroid Surgery With the New Harmonic Scalpel: a Prospective Randomized Study

The objective of this study is to compare the results of total thyroidectomy using the new harmonic scalpel device (FOCUS) to that with the previously available harmonic scalpel device (HA...

Real-Time Assessment Of Breast Cancer Lumpectomy Specimen Margins With Nonlinear Microscopy

This research is studying a new investigative imaging instrument called a nonlinear microscope (NLM). A nonlinear microscope can produce images similar to an ordinary pathologist's microsc...

Single Centre Study to Compare Harmonic Scalpel to Conventional Diathermy in Free Tissue Transfer Breast Reconstruction

The purpose of this single centre study is to evaluate whether the use of Harmonic Synergy Dissecting Hook (Harmonic Scalpel) in breast reconstruction surgery is superior to conventional d...

Use of Harmonic Scalpel to Decrease Lymphatic and Chest Tube Drainage After Lymph Node Dissection With Lobectomy.

In an effort to elucidate whether the Harmonic Scalpel will improve sealing lymphatics and decrease lymphatic drainage thereby decreasing the length of time that chest tubes are required a...

Medical and Biotech [MESH] Definitions

A microscopic imaging technique that takes advantage of the process of harmonic generation that occurs when photons interact to generate new photons of a different wavelength. In second harmonic generation, two photons of the same wavelength and frequency, such as from a LASER, interact inside a medium and are converted to a photon of twice the frequency and half of the wavelength of the two incident photons. The light signals captured are used to produce images that are dependent on the unique optical properties of the material.

A computer simulation technique that is used to model the interaction between two molecules. Typically the docking simulation measures the interactions of a small molecule or ligand with a part of a larger molecule such as a protein.

A computer simulation developed to study the motion of molecules over a period of time.

The fluctuation of the ALLELE FREQUENCY from one generation to the next.

A non-invasive assessment of the stability of tissue-embedded prosthetic devices such as dental implants.

Quick Search


DeepDyve research library

Searches Linking to this Article