Aiming at realising the frequency response with small group delay deviation and wide passband width, we propose miniaturised surface acoustic wave (SAW) filters having folded propagation path and employing a straight edge mirror reflector for SH-type SAWs. In a filter fabricated on a PZT substrate, the group delay deviation of less than ±15 ns and passband width of 5% were obtained at the centre frequency of 100 MHz. The experimental result and theoretical prediction were in good agreement with each other.
|Number of pages||5|
|Journal||Proceedings of the Annual IEEE International Frequency Control Symposium|
|Publication status||Published - 2000 Jan 1|
ASJC Scopus subject areas
- Control and Systems Engineering
- Electrical and Electronic Engineering