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 past decade. The ever-growing demand for more sophisticated passive signal processing functions on-chip has fueled these developments. As result, acoustic devices maintained leadership mobile applications. By evaluating three fundamental parameters, namely electromechanical coupling (k 2 ), quality factors, frequency scalability, acoustics, this aims to, extensively but not exhaustively, capture rationales behind approaches achieving higher microsystems. Outlooks different systems addressing their underlying challenges are also offered hopes establishing balanced roadmap future development.