Title :
Improved rejection band in SAW ladder filters using high frequency shunt element
Author :
Caron, Joshua J. ; Shishkin, Serge L.
Author_Institution :
Adv. Technol. Dept., Sawtek. Inc., Apopka, FL, USA
Abstract :
A novel SAW ladder filter is presented which utilizes a high-frequency shunt resonator to achieve improved attenuation within a relatively wide band of frequencies above the passband. Conventional impedance element resonators provide electrical matching within the passband between the high-frequency shunt element and the input and output ports.
Keywords :
band-pass filters; ladder filters; surface acoustic wave resonator filters; SAW ladder filters; band-pass filters; electrical matching; high frequency shunt resonator; high-frequency shunt element; impedance element resonators; multiple synchronous SAW resonators; passband; rejection band; Attenuation; Band pass filters; Bonding; Impedance; Passband; Resonant frequency; Resonator filters; Road transportation; Signal design; Surface acoustic waves;
Conference_Titel :
Ultrasonics Symposium, 2004 IEEE
Print_ISBN :
0-7803-8412-1
DOI :
10.1109/ULTSYM.2004.1417919
