Title :
Low-loss materials for high-frequency acoustic devices
Author :
Ivanov, Sergey N.
Author_Institution :
Inst. of Radio Eng. & Electron., Acad. of Sci., Moscow, Russia
Abstract :
The positive experience of fabrication of low-loss high frequency acoustic materials on the basis of yttrium-rare earth garnet solid solutions allowed us to extend the range of non-traditional materials for these purposes. One of the most interesting materials is the yttrium-aluminum borate (YAB) monocrystal YAl3(BO3)4. This material has a low attenuation level for longitudinal waves (about 0.7 dB/(μS·GHz)) and there is a possibility to synthesize solid solutions. The replacement of Y ions by rare earth R ions leads to decrease of acoustic wave (AW) absorption
Keywords :
acoustic wave absorption; aluminium compounds; bulk acoustic wave devices; dielectric losses; solid solutions; yttrium compounds; BAW; YAl3(BO3)4; acoustic wave absorption; attenuation level; bulk acoustic wave devices; high-frequency acoustic devices; longitudinal waves; low-loss materials; solid solutions; Acoustic devices; Acoustic materials; Acoustic waves; Attenuation; Earth; Fabrication; Frequency; Garnets; Solids; Yttrium;
Conference_Titel :
Ultrasonics Symposium, 2001 IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-7177-1
DOI :
10.1109/ULTSYM.2001.991660
