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High-Performance MEMS Sensors

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Electronic Sensors".

Deadline for manuscript submissions: closed (30 March 2023) | Viewed by 2073

Special Issue Editor


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Guest Editor
College of Information Science & Electronic Engineering, Zhejiang University, Hangzhou 310027, China
Interests: micro-/nanosensing; intelligent sensing microsystem; self-generated microenergy and on-chip multimode integration; MEMS; energy harvesting

Special Issue Information

Dear Colleagues,

The importance of MEMS technology is continuously increasing as they become more widespread in a broad variety of applications ranging from low-power devices for IoT and battery-powered applications to high-end devices for precise navigation and positioning, Industry 4.0, enhanced virtual reality components and smartphones.

MEMS technology is receiving substantial industrial attention. The concept of integrating sensors, actuators, electrical (and electronic) and mechanical devices into a single chip is considered as a basis for breakthrough technologies.

The aim of the Special Issue is to introduce the state-of-the-art technologies in the field of sensors, mechatronics, MEMS devices and microsystems in order to further summarize and improve on the methodologies concerning microsystems and MEMS devices. Topics of interest include but are not limited to the following:

  • MEMS and energy harvesters
  • MEMS low-power sensing techniques, circuits, and devices
  • Accelerometers
  • MEMS gyroscopes
  • Advanced packaging
  • Sensor characterization techniques
  • Sensor error modeling and online calibration

Prof. Dr. Lufeng Che
Guest Editor

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Published Papers (1 paper)

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Research

14 pages, 21652 KiB  
Article
H-Shaped Radial Phononic Crystal for High-Quality Factor on Lamb Wave Resonators
by Weitao He, Lixia Li, Zhixue Tong, Haixia Liu, Qian Yang and Tianhang Gao
Sensors 2023, 23(4), 2357; https://doi.org/10.3390/s23042357 - 20 Feb 2023
Cited by 3 | Viewed by 1699
Abstract
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 ultra-high frequency (UHF) and ultra-wideband gap characteristics. Compared to previous studies on phononic crystal (PC) structures [...] Read more.
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 ultra-high frequency (UHF) and ultra-wideband gap characteristics. Compared to previous studies on phononic crystal (PC) structures aimed at suppressing anchor loss, the radial phononic crystal (RPC) structure is more suitable for suppressing the anchor loss of the LWR. By using the finite element method, through the research and analysis of the complex energy band and frequency response, it is found that the elastic wave can generate an ultra-wideband gap with a relative bandwidth of up to 80.2% in the UHF range when propagating in the H-RPC structure. Furthermore, the influence of geometric parameters on the ultra-wideband gap is analyzed. Then, the H-RPC structure is introduced into the LWR. Through the analysis of the resonant frequency, it is found that the LWR formed by the H-RPC structure can effectively reduce the vibration energy radiated by the anchor point. The anchor quality factor was increased by 505,560.4% compared with the conventional LWR. In addition, the analysis of the LWR under load shows that the LWR with the H-RPC structure can increase the load quality factor by 249.9% and reduce the insertion loss by 93.1%, while the electromechanical coupling coefficient is less affected. Full article
(This article belongs to the Special Issue High-Performance MEMS Sensors)
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