空腔型薄膜体声波滤波器的关键技术进展
陶桂龙, 支国伟, 罗添友, 欧阳佩东, 衣新燕, 李国强

Progress on Key Technologies of Cavity-structured Thin Film Bulk Acoustic Wave Filter
TAO Guilong, ZHI Guowei, LUO Tianyou, OUYANG Peidong, YI Xinyan, LI Guoqiang
图4 基于AlN薄膜的BAW谐振器[25]
Fig. 4 BAW resonator based on AlN thin film[25]
(a) Nonlinear circuit model; (b) Second harmonic response; (c) Third harmonic response