Acoustic surface wave filters 2 FBAR Acetone 1 Acoustic waves 1 Adaptive biasing circuits 1 Aluminum nitride 1 Breath analysis 1 Butterworth 1 C (programming language) 1 Chemical detection 1 Class-C oscillator 1 Cross-coupled 1 Cross-coupled topology 1 Current source transistors 1 Film bulk acoustic resonators 1 Finite element method 1 Finite element simulations 1 Gas detectors 1 Gas sensing 1 Gas sensing electrodes 1 Gases 1 II-VI semiconductors 1 III-V semiconductors 1 Nanoelectronics 1 Natural frequencies 1 Optical resonators 1 Oscillators (electronic) 1 Phase noise 1 Piezoelectricity 1 Post layout simulation 1