Title :
A prototype of tunable surface acoustic wave filter
Author :
Jiahua Zhu ; Emanetoglu, Nuri W. ; Yicheng Lu ; Kosinski, J.A. ; Pastore, R. ; Lepore, A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Rutgers Univ., Piscataway, NJ, USA
Abstract :
A prototype of tunable surface acoustic wave filter has been developed. The device consists of 11 interdigital transducers paralleled in the SAW propagation path. Different SAW filter configurations are realized by selecting or combining various IDTs, resulting in the tunability of both center frequency and 3 dB bandwidth. The center frequencies of the SAW filter ranges from 126.8 MHz to 199.1 MHz while the 3 dB bandwidth range from 18.8 MHz to 58.9 MHz. Changes between different SAW filter configurations is implemented by RF switches.
Keywords :
interdigital transducers; surface acoustic wave filters; surface acoustic wave transducers; 126.8 to 199.1 MHz; 18.8 to 58.9 MHz; RF switch; interdigital transducer; surface acoustic wave filter; tunability; Acoustic waves; Bandwidth; Electrodes; Frequency measurement; Prototypes; Radio frequency; SAW filters; Surface acoustic waves; Switches; Tunable circuits and devices;
Conference_Titel :
Ultrasonics Symposium, 1999. Proceedings. 1999 IEEE
Conference_Location :
Caesars Tahoe, NV
Print_ISBN :
0-7803-5722-1
DOI :
10.1109/ULTSYM.1999.849353
