基于宽调谐的低功耗有源集成带通滤波器设计

Design of Low-power Active Integrated Bandpass Filter Based on Wide Tuning

阐述一种具有宽调谐范围、低功耗和小尺寸特点的有源集成带通滤波器设计方案。该方案采用新型有源电感代替传统的无源电感,有效减小滤波器的尺寸和重量。通过改进有源电感电路,提高滤波器的调谐范围,能够满足不同应用场景的需求。该带通滤波器采用65nm CMOS工艺设计。仿真结果表明,滤波器的中心频率可以在2~6GHz范围内调谐,且在此范围内中心频率处的回波损耗S11均小于-20d B。在1.2V电源电压下电路功耗介于1.7~3.1m W之间,版图尺寸为368μm×319μm。

This paper describes an active integrated bandpass filter design with a wide tuning range,low power consumption,and compact size.This approach utilized novel active inductors to replace traditional passive inductors,significantly reducing the filter's size and weight.Moreover,by improving the active inductor circuit,the filter's tuning range was enhanced,enabling it to meet the requirements of different application scenarios.The filter was designed using a 65nm CMOS process,and simulation results showed that its center frequency could be tuned within the 2~6GHz range,with the return loss(S11)at the center frequency being less than-20dB throughout this range.The circuit's power consumption ranged from 1.7 to 3.1mW under a 1.2V supply,and the layout size was only 368μm×319μm.