Full text loading...
A comparison between the gap width (defined as the signal rejection point relative to the host matrix) and maximum gap depth for different ratios, where is the W-rod radius and is the lattice constant.
The effect of the release holes on the normalized transmission. The radius of the release holes was systematically changed from 0.00 to (not all shown here), where is the lattice constant. It is evident that the predominant effect of the release holes is to reduce the transmission in the low frequency region and redshift the low frequency edge of the gap.
(a) SEM image of a fabricated BAW phononic bandgap structure designed to operate at . Aluminum nitride piezoelectric transducers have been fabricated on both sides for signal insertion and detection. (b) A comparison between the theoretically predicted and measured normalized (with respect to the matrix) transmission data of a nine layer ABG crystal averaged over five samples.
Acoustic properties of the material set used.
Article metrics loading...