Results 81 to 90 of about 2,512,751 (208)

Thin film bulk acoustic wave devices : performance optimization and modeling [PDF]

, 2011
Thin film bulk acoustic wave (BAW) resonators and filters operating in the GHz range are used in mobile phones for the most demanding filtering applications and complement the surface acoustic wave (SAW) based filters.
Pensala, Tuomas
core   +1 more source

Shear Mode Bulk Acoustic Resonator Based on Inclined c-Axis AlN Film for Monitoring of Human Hemostatic Parameters

Micromachines, 2018
Measurement of hemostatic parameters is essential for patients receiving long-term oral anticoagulant agents. In this paper, we present a shear mode bulk acoustic resonator based on an inclined c-axis aluminum nitride (AlN) film for monitoring the human ...
Shuren Song, Da Chen, Hongfei Wang, Chaohui Li, Wei Wang, Wangli Yu, Yanyan Wang, Qiuquan Guo   +7 more
doaj   +1 more source

Self‐Sustaining Sensing Systems: Integration Strategies and Signal–Power Matching in Energy‐Harvesting Electronics

Advanced Science, EarlyView.
Energy‐harvesting‐integrated sensors couple ambient energy conversion with sensing, processing, and wireless communication. This review organizes recent progress through integration architectures and operating principles, revisiting co‐packaged, monolithic, and co‐functional designs together with always‐on, event‐driven, and multi‐modal sensing modes ...
Taehyun Park, Ki‐Yoon Park, Yeonho Choi, Dong‐Myeong Shin, Hong‐Joon Yoon, Hocheon Yoo   +5 more
wiley   +1 more source

Towards the Optimization of Apodized Resonators

Micromachines
Bulk Acoustic Wave (BAW) resonators are essential components in modern RF communication systems due to their high selectivity and quality factor. However, spurious resonances caused by Lamb wave mode propagation along the in-plane directions degrade the ...
Ana Valenzuela-Pérez, Carlos Collado, Jordi Mateu   +2 more
doaj   +1 more source

Unveiling Anisotropic in‐Plane Thermal Conductivity and Thermal Expansion Coefficient in Low‐Symmetry Few‐Layer ReS2

Advanced Science, EarlyView.
Simultaneous two‐mode Raman thermometry reveals strong in‐plane anisotropic thermal conductivity and thermal expansion coefficients in low‐symmetry few‐layer ReS2. By decoupling thermal transport along the crystallographic a‐ and b‐axes within a single optical configuration, this study provides robust experimental evidence and ab initio theoretical ...
Manab Mandal, Prahalad Kanti Barman, Susmita Jana, Saroj Poudyal, Kaushalya Kumari, Sourav Mondal, Abhishek Misra, Birabar Ranjit Kumar Nanda, Pramoda Kumar Nayak, Kanikrishnan Sethupathi   +9 more
wiley   +1 more source

Polyimide-Based High-Performance Film Bulk Acoustic Resonator Humidity Sensor and Its Application in Real-Time Human Respiration Monitoring. [PDF]

Micromachines (Basel), 2022
Zhu Y, Xia P, Liu J, Fang Z, Du L, Zhao Z.   +5 more
europepmc   +1 more source

Acoustic spin pumping in magnetoelectric bulk acoustic wave resonator

AIP Advances, 2016
We present the generation and detection of spin currents by using magnetoelastic resonance excitation in a magnetoelectric composite high overtone bulk acoustic wave (BAW) resonator (HBAR) formed by a Al-ZnO-Al-GGG-YIG-Pt structure.
N. I. Polzikova, S. G. Alekseev, I. I. Pyataikin, I. M. Kotelyanskii, V. A. Luzanov, A. P. Orlov   +5 more
doaj   +1 more source

A Recyclable and Biodegradable High‐Performance Piezoelectric Nanogenerator for Self‐Powered Biosensing and Assistive Human‐Machine Interaction

Advanced Science, EarlyView.
By exploiting multiscale hydrogen‐bonding interactions between HFPD and TOCNF, the composite simultaneously achieves a high piezoelectric coefficient (14.0 pC·N−1), outstanding flexibility (100 000 bending cycles), water‐assisted recyclability, excellent biodegradability, and sensitive wearable/implantable sensing for motion, speech, and Morse code ...
Tingshuai Luo, Tian Xiao, Luyu Zhang, Bailang Zhang, Shengchang Lu, He Xiao, Jianguo Li, Kai Liu, Chaoji Chen, Hui Wu   +9 more
wiley   +1 more source

Lateral Field Excitation Film Bulk Acoustic Resonator as infrared sensor

, 2010
This paper investigated an infrared (IR) sensitive Lateral Field Excitation (LFE) Film Bulk Acoustic Resonator (FBAR). The resonant frequency of the LFE FBAR decreased when there was IR (peak wavelength at 750nm) illumination on the device.
Rui Tang, Hongyu Yu, Jie Zhu, Jon Oiler, Qiu, Xiaotun, Oiler, Jon, Ziyu Wang, Yu, Hongyu, Wang, Ziyu, Xiaotun Qiu, Tang, Rui, Zhu, Jie   +11 more
core   +1 more source

Customized Itinerant Frequency Combs by Cascaded Nonlinear Effects

Advanced Science, EarlyView.
A cascaded third‐order nonlinear system generates an itinerant frequency comb with the comb center frequency decoupled from the cavity resonance. This enables arbitrary spectral scaling, flexible spacing adjustments, and real‐time central‐frequency engineering, allowing comb splicing and subdivision. The resulting versatility and reconfigurability open
Yi Wang, Yulong Liu, Zeji Li, Wenyan Wang, Sihan Wang, Cheng Wang, Jingwei Zhou, Jie‐Qiao Liao, Tiefu Li   +8 more
wiley   +1 more source