Design of low phase noise FBAR oscillator based on Pierce structure

Chao Shu; Tingting Liu; Huihui Guo

doi:10.1117/12.2654524

2 November 2022 Design of low phase noise FBAR oscillator based on Pierce structure

Chao Shu, Tingting Liu, Huihui Guo

Proceedings Volume 12351, International Conference on Advanced Sensing and Smart Manufacturing (ASSM 2022); 123510H (2022) https://doi.org/10.1117/12.2654524
Event: International Conference on Advanced Sensing and Smart Manufacturing (ASSM 2022), 2022, Nanjing, China

Abstract

In order to achieve higher quality communication between modern communication systems and wireless sensor networks, a pierce based thin film bulk acoustic resonator (FBAR) oscillator with a fundamental frequency of 1.65 GHz was designed. A bias circuit with negative feedback structure is designed under the lowest noise figure of RF Transistor electrical characteristics, and the on-load quality factor (Q_L) of the oscillator is improved. The excellent performance of low phase noise of FBAR oscillator is realized. The simulation results show that the phase noise of FBAR oscillator of - 94.780 dBc/Hz at 1 kHz offset, -115.038 dBc/Hz at 10 kHz offset, -135.087 dBc/Hz at 100 kHz offset, and -155.123 dBc/Hz at 1 MHz offset, the DC power consumption is 10 mW, the output power is -8.150 dBm, and the quality factor (FOM) of the oscillator is -210 dB. The designed FBAR oscillator has low phase noise and provides higher quality communication for BAW sensor.

Citation Download Citation

Chao Shu, Tingting Liu, and Huihui Guo "Design of low phase noise FBAR oscillator based on Pierce structure", Proc. SPIE 12351, International Conference on Advanced Sensing and Smart Manufacturing (ASSM 2022), 123510H (2 November 2022); https://doi.org/10.1117/12.2654524

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