A Novel Structure to Suppress Transverse Modes in Radio Frequency TC-SAW Resonators and Filters

• Published in: IEEE microwave and wireless components letters Vol. 29; no. 4; pp. 249 - 251
• Main Authors: Liu, Yuhao, Liu, Jiansong, Wang, Yiliu, Lam, C. S.
• Format: Journal Article
• Language: English
• Published: IEEE 01.04.2019
• Subjects: Bulk acoustic wave (BAW); filter; Frequency measurement; interdigital transducer (IDT); lithium tantalate (LT); Radio frequency; Resonant frequency; resonator; Resonators; solidly mounted resonator; surface acoustic wave (SAW); Surface acoustic waves; temperature coefficient of frequency (TCF); temperature-compensated SAW (TC-SAW); thin-film bulk acoustic resonator; transverse modes

In this letter, we present simulation and measurement results of a novel structure to suppress transverse modes in radio frequency temperature-compensated surface acoustic wave (TC-SAW) resonators and filters. We propose a bent TC-SAW resonator structure to suppress such transverse modes which in ge...