Yang Jiashi, Xue Huan, Fang Huiyu, Hu Yuantai, Wang Ji, Shen Lijun
IEEE Trans Ultrason Ferroelectr Freq Control. 2007 Apr;54(4):892-5. doi: 10.1109/tuffc.2007.325.
We study the possibility of using electrodes of varying thickness for strong energy trapping in quartz thickness-shear resonators as an alternative for contoured resonators. A theoretical analysis is performed. Results show that nonuniform electrodes can produce strong trapping of thickness-shear modes.