Journal
2020 IEEE ASIA-PACIFIC MICROWAVE CONFERENCE (APMC)
Volume -, Issue -, Pages 380-382Publisher
IEEE
DOI: 10.1109/APMC47863.2020.9331344
Keywords
acoustic-electromagnetic joint simulation; bulk acoustic wave (BAW) filter; film bulk acoustic resonator (FBAR); mason equivalent circuit model; N41 band
Funding
- Key Research and Development Project of Guangdong Province [2020B0101080001]
- National Special Support Program for High-Level Personnel Recruitment [2018RA2131]
- Beijing Natural Science Foundation [JQ19018]
- National Natural Science Foundation of China [61971052]
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A bulk acoustic wave (BAW) filter for the N41 band (2535 MHz-2655 MHz) is designed in this paper. This design is a ladder filter based on the one-dimensional Mason circuit model of the film bulk acoustic resonator (FBAR). In order to improve the accuracy of the simulation results, the acoustic-electromagnetic joint simulation is performed, and the results are compared with the circuit model. The filter designed in this paper has a low insertion loss (less than 2.0 dB), a high out-of-band rejection (greater than 42 dB), a high-power capacity (greater than 30 dBm), and a small size (1.1 x 0.9 mm(2)).
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