Microwave Acoustic Devices: Recent Advances and Outlook

This paper presents a short review of the microwave acoustics area, where exciting material innovations and performance advancements have been made in the past decade. The ever-growing demand for more sophisticated passive signal processing functions on-chip has fueled these developments. As a resul...

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Bibliographic Details
Published inIEEE journal of microwaves Vol. 1; no. 2; pp. 601 - 609
Main Authors Gong, Songbin, Lu, Ruochen, Yang, Yansong, Gao, Liuqing, Hassanien, Ahmed E.
Format Journal Article
LanguageEnglish
Published IEEE 01.04.2021
Subjects
Acoustic devices
aluminum nitride
Couplings
electromechanical
filters
lithium niobate
lithium tantalate
Micromechanical devices
microsystems
Microwave acoustics
Microwave devices
Performance evaluation
quality factors
resonators
Signal processing
Technological innovation
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Summary:This paper presents a short review of the microwave acoustics area, where exciting material innovations and performance advancements have been made in the past decade. The ever-growing demand for more sophisticated passive signal processing functions on-chip has fueled these developments. As a result, microwave acoustic devices have maintained performance leadership in mobile applications. By evaluating three fundamental parameters, namely electromechanical coupling (k 2 ), quality factors, and frequency scalability, of microwave acoustics, this paper aims to, extensively but not exhaustively, capture the rationales behind approaches achieving higher performance microsystems. Outlooks for different material systems and addressing their underlying challenges are also offered in hopes of establishing a balanced roadmap for future microwave acoustics development.
ISSN:2692-8388
2692-8388
DOI:10.1109/JMW.2021.3064825