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film bulk acoustic resonator simulation model

Posted Mar 18, 2012, 2:28 a.m. EDT MEMS & Nanotechnology, MEMS & Piezoelectric Devices Version 3.5a 0 Replies

Jianan Wang
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Hi, there.

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!!
0 Replies Last Post Mar 18, 2012, 2:28 a.m. EDT
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Hello Jianan Wang

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