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film bulk acoustic resonator simulation model
Posted 18 mar 2012, 02:28 GMT-4 MEMS & Nanotechnology, MEMS & Piezoelectric Devices Version 3.5a 0 Replies
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Recently, I'm engaged in the FBAR simulation from the model. and what really bothers me is that if I enlarge the frequency simulation range, like, for instance, 200MHz to 250MHz, there would be a negative value for admittance Y and Quality factor, and I wonder why this kind of thing happens.
Since this negative admittance is not proved theoretically, i doubt if denser meshing should be employed to solve this problem.
Thanks a lot!!
Hello Jianan Wang
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