Thin film bulk acoustic wave filters with ring-dot electrodes

2018 ◽  
Vol 19 (10) ◽  
pp. 786-795 ◽  
Author(s):  
Jing Liu ◽  
Jian-ke Du ◽  
Ji Wang ◽  
Jia-shi Yang
Keyword(s):  
Thin Film ◽  
Acoustic Wave ◽  
Bulk Acoustic Wave ◽  
Film Bulk ◽  
Wave Filters

scholarly journals Energy trapping of thickness-extensional modes in thin film bulk acoustic wave filters

AIP Advances ◽  
2016 ◽  
Vol 6 (1) ◽  
pp. 015002 ◽  
Author(s):  
Zinan Zhao ◽  
Zhenghua Qian ◽  
Bin Wang
Keyword(s):  
Thin Film ◽  
Acoustic Wave ◽  
Bulk Acoustic Wave ◽  
Energy Trapping ◽  
Film Bulk ◽  
Wave Filters

Design of Bulk Acoustic Wave Filters for Beidou Receiver

2014 ◽  
Vol 24 (02) ◽  
pp. 1550018
Author(s):  
Tingting Lu ◽  
Shuai Wang ◽  
Hao Zhang ◽  
Lingwei Xu ◽  
T. Aaron Gulliver
Keyword(s):  
Thin Film ◽  
Acoustic Wave ◽  
Acoustic Resonator ◽  
Bulk Acoustic Wave ◽  
Design System ◽  
Physical Parameters ◽  
Pass Band ◽  
Film Bulk ◽  
Wave Filters ◽  
Baw Filter

Based on the thin-film bulk acoustic resonator (FBAR) technology, a new narrow-band bulk acoustic wave (BAW) filter for Beidou B1 band receiver is designed. The aluminum nitride thin film is used as a piezoelectric layer. The Mason model of air-gap TFBAR (AGR) resonators is established in advanced design system to investigate the relationship between electrical impedance and physical parameters. The simulation results illustrate the effect of the area of parallel unit and the number of resonators on the performance of the BAW filters. By changing the series-parallel unit series and area ratio, the pass band of the BAW filter can reach 1556–1566 MHz, and the out-of-band rejection and the insertion loss can reach 47.5 dB and 3.0 dB, respectively.

scholarly journals Selective normal mode excitation in multilayer thin film bulk acoustic wave resonators

2014 ◽  
Vol 105 (16) ◽  
pp. 162910 ◽  
Author(s):  
Andrey Kozyrev ◽  
Anatoly Mikhailov ◽  
Sergey Ptashnik ◽  
Peter K. Petrov ◽  
Neil Alford
Keyword(s):  
Thin Film ◽  
Acoustic Wave ◽  
Normal Mode ◽  
Bulk Acoustic Wave ◽  
Multilayer Thin Film ◽  
Mode Excitation ◽  
Film Bulk ◽  
Acoustic Wave Resonators ◽  
Bulk Acoustic Wave Resonators
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