Journal
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
Volume 27, Issue 2, Pages 105-107Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LMWC.2016.2646924
Keywords
AlN; resonators; MEMS; Two-Dimensional; modes; filters; electromechanical coupling coefficient
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In this work we demonstrate high values of electromechanical coupling coefficient (k(t)(2)) exceeding 4.9% in 1-mu m thick Aluminum Nitride (AlN) two-dimensional-mode resonators (2DMRs) operating around 3.2 GHz. Such a high k(t)(2)-value, which is attained thanks to the transduction of the resonators through both the d(33) and d(31) piezoelectric coefficients of AlN, enables low-power oscillators and low insertion-loss filters, operating in the Super-High-Frequency (SHF) range.
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