Intermediate frequency lamb wave coupled resonator filters for RF receiver architectures
- Resource Type
- Conference
- Authors
- Desvergne, M.; Defay, E.; Wolozan, D.; Aid, M.; Vincent, P.; Volatier, A.; Deval, Y.; Begueret, J.-B.
- Source
- ESSDERC 2007 - 37th European Solid State Device Research Conference Solid State Device Research Conference, 2007. ESSDERC 2007. 37th European. :358-361 Sep, 2007
- Subject
- Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Resonator filters
Radio frequency
Band pass filters
Acoustic waves
Q factor
Bandwidth
Film bulk acoustic resonators
Insertion loss
Impedance measurement
Loss measurement
- Language
- ISSN
- 1930-8876
2378-6558
This article presents a novel IF channel filter for ultralow power RF receiver architectures. These filters are based on the acoustic coupling of two high quality factor (Q above 1000) Lamb Wave resonators. Acoustical coupling is introduced to controlled filter bandwidth through a periodic guide. These small form-factor filters are above-IC compatible and potentially suitable for co-integration with FBAR BAW technology. A 233MHz high impedance (1kΩ) 650kHz band pass filter with low insertion loss (−5.7dB) and high out-of-band rejection (−35 dB) has been developed and measured.