Supported by the National High-Technology Development Program of China(No.G1999033105);the National Natural Science Foundation of China (No.69806007)
The most common typical bulk acoustic wave (BAW) filters are fabricated using bulk micromachining technology, but they have several disadvantages. This paper describes a structure for front end passband BAW filters ma...
Supported by the National"973"Project(No.G1999033105);the National Natural Science Foundation of China(No.69806007)
Analytical solutions are presented for the wave equation for the electrode-piezoelectric-electrode sandwich structure in film bulk acoustic resonators (FBAR). The impedance for lead-zirconate-titanate (PZT)-based FBAR...