Results 31 to 40 of about 316 (158)

Multifunctional and Wearable Patches Based on Flexible Piezoelectric Acoustics for Integrated Sensing, Localization, and Underwater Communication

open access: yesAdvanced Functional Materials, Volume 33, Issue 2, January 10, 2023., 2023
Flexible acoustic wave devices based on piezoelectric thin films deposited onto flexible substrates are designed as integrated multifunctional platform, which can realize multi‐functions of sensing, communication, ranging, and positioning. Unlike the commonly reported systems that require two or more sensing/ communication modules, the proposed system ...
Qian Zhang   +8 more
wiley   +1 more source

Fabrication of a New Air-Gap FBAR on an Organic Sacrificial Layer through an Innovative Design Algorithm

open access: yesApplied Sciences, 2023
Realizing thin-film acoustic wave resonators presents many design and fabrication challenges. Actual material specifications always differ from nominal material properties employed in simulations, as they depend on the deposition technique and parameters
Giovanni Niro   +5 more
doaj   +1 more source

Design and Analysis of Wideband Ladder-Type Film Bulk Acoustic Wave Resonator Filters in Ku-Band

open access: yesActive and Passive Electronic Components, 2013
This paper presents the design of ladder-type filters based on film bulk acoustic wave resonator (FBAR) in Ku-band. The proposed FBAR filter has an insertion loss of −3 dB, out-of-band rejection of −12 dB and 3 dB bandwidth of 1.0 GHz from 15 GHz to 16 ...
N. Izza M. Nor   +3 more
doaj   +1 more source

The Design of a Frame-Like ZnO FBAR Sensor for Achieving Uniform Mass Sensitivity Distributions

open access: yesSensors, 2020
In this paper, an infinite circular ZnO thin film bulk acoustic resonator (FBAR) with a frame-like electrode operating at the thickness-extensional (TE) mode is studied.
Xueli Zhao   +4 more
doaj   +1 more source

A prototype portable instrument employing micro-preconcentrator and FBAR sensor for the detection of chemical warfare agents

open access: yesNanotechnology and Precision Engineering, 2022
The presence of chemical warfare agents (CWAs) in the environment is a serious threat to human safety, but there are many problems with the currently available detection methods for CWAs.
Xu Yan   +4 more
doaj   +1 more source

A Novel Bulk Acoustic Wave Resonator for Filters and Sensors Applications

open access: yesMicromachines, 2015
Bulk acoustic wave (BAW) resonators are widely applied in filters and gravimetric sensors for physical or biochemical sensing. In this work, a new architecture of BAW resonator is demonstrated, which introduces a pair of reflection layers onto the top of
Zhixin Zhang   +4 more
doaj   +1 more source

Design and Optimization of a BAW Microphone Sensor

open access: yesMicromachines, 2022
A wind tunnel experiment is an important way and effective method to research the generation mechanism of aerodynamic noise and verify aerodynamic noise reduction technology.
Huihui Guo   +4 more
doaj   +1 more source

Processing Chip for Thin Film Bulk Acoustic Resonator Mass Sensor

open access: yesJournal of Control Science and Engineering, 2012
Aimed at portable application, a new integrated process chip for thin film bulk acoustic resonator (FBAR) mass sensor is proposed and verified with 0.18 um CMOS processing in this paper. The longitudinal mode FBAR with back-etched structure is fabricated,
Pengcheng Jin   +3 more
doaj   +1 more source

A Highly Sensitive Humidity Sensor Based on Ultrahigh-Frequency Microelectromechanical Resonator Coated with Nano-Assembled Polyelectrolyte Thin Films

open access: yesMicromachines, 2017
We developed a highly sensitive humidity sensor based on the combination of ultrahigh-frequency film bulk acoustic resonator (FBAR) and nano-assembled polyelectrolyte (PET) thin films.
Wenpeng Liu   +5 more
doaj   +1 more source

Laser Acoustic Imaging of Film Bulk Acoustic Resonator (FBAR) Lateral Mode Dispersion [PDF]

open access: yesAIP Conference Proceedings, 2005
A laser acoustic imaging microscope has been developed that measures acoustic motion with high spatial resolution without scanning. Images are recorded at normal video frame rates and heterodyne principles are used to allow operation at any frequency from Hz to GHz. Fourier transformation of the acoustic amplitude and phase displacement images provides
openaire   +1 more source

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