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A chip-scale frequency down-conversion realized by MEMS-based filter and local oscillator
Sensors and Actuators A: Physical ( IF 4.1 ) Pub Date : 2019-12-27 , DOI: 10.1016/j.sna.2019.111787
Jyoti Satija , Sukomal Dey , Shashwat Bhattacharya , Gayathri Pillai , Sheng-Shian Li

A wide-width clamped-clamped beam (CC-beam) resonator and a filter realized using mechanically-coupled resonator tanks have been extensively characterized to attain mixler (i.e., mixer-filter) functionality for a chip-scale frequency translation. Such a resonator has been driven into the nonlinear regime to explore its effect on the mixler operation as well as to obtain the best phase noise performance using the phase-feedback method. The proposed electrostatically transduced mixler operates by utilizing the local oscillator (LO) signal generated from the resonator itself, thus eliminating the need of a function generator or an external quartz crystal oscillator. This technique implemented with all the components on the same silicon substrate shows great potential for miniaturization in wireless communication while achieving 14.4 dB overall mixler loss.



中文翻译:

通过基于MEMS的滤波器和本地振荡器实现芯片级频率下变频

宽钳位夹束(CC束)谐振器和使用机械耦合谐振器槽实现的滤波器已得到广泛表征,以实现用于芯片级频率转换的混频器(即,混频滤波器)功能。这种谐振器已被驱动进入非线性状态,以探索其对混频器操作的影响以及使用相位反馈方法获得最佳相位噪声性能。所提出的静电换能混频器通过利用从谐振器本身生成的本地振荡器(LO)信号进行操作,从而消除了对函数发生器或外部石英晶体振荡器的需求。在同一硅基板上用所有组件实施的这项技术在实现14的同时,显示出在无线通信中实现小型化的巨大潜力。

更新日期:2019-12-27
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