摘要
提出一种基于CMOS宽调谐有源电感的微型化带通滤波器。该滤波器由新型有源电感、输入级、输出级以及双重负阻电路等部分构成,利用可调谐有源电感和双重负阻电路技术,实现了滤波器中心频率的宽调谐范围。该带通滤波器采用65 nm CMOS工艺设计,版图面积仅为409μm×570μm。仿真结果表明,滤波器的中心频率可调范围为1.50~8.44 GHz,品质因子Q介于6.2到17.4之间,中心工作频率处的回波损耗(S11)保持在-20 dB以下,噪声系数为15.38~20.85 dB;在中心频率为7 GHz时,输入1 dB压缩点为-1.72 dBm。在1.2 V电源电压下,整个带通滤波器的最大功耗仅为3.2 mW。提出的带通滤波器满足了微型化、宽调谐范围与低功耗的设计要求。
In this study,we proposed a miniaturized bandpass filter using a CMOS widely tunable active inductor.The proposed bandpass filter comprised a novel active inductor,an input stage,an output stage,and a double-negative resistance circuit.It employs a tunable active inductor and a double negative resistance circuit technology to achieve a wide tuning range of the filter center frequency.The bandpass filter is designed using a 65 nm CMOS process,with a layout area of only 409μm×570μm.The post-layout simulation results demonstrate that the center frequency of the filter can be adjusted within the range of 1.50–8.44 GHz,with a quality factor,Q,between 6.2 and 17.4.The return loss(S11)at the center operating frequency always remains below−20 dB,and the noise figure ranges from 15.38–20.85 dB.The input 1 dB compression point is−1.72 dBm at a center frequency of 7 GHz.The entire bandpass filter consumes a maximum power of only 3.2 mW at a supply voltage of 1.2 V.The proposed bandpass filter can satisfy the design requirements of the miniaturization,wide tuning range,and low power consumption.
作者
徐丹丹
刘成尧
万求真
XU Dandan;LIU Chengyao;WAN Qiuzhen(Zhejiang Industry Polytechnic College,Shaoxing,Zhejiang 312000,P.R.China;College of Information Science and Engineering,Hunan Normal University,Changsha 410081,P.R.China)
出处
《微电子学》
北大核心
2025年第2期205-212,共8页
Microelectronics
基金
浙江工业职业技术学院“专业学科一体化建设”科研项目(XKC202412018)
国家自然科学基金资助项目(61901169)。
关键词
有源电感
CMOS
带通滤波器
微型化
宽调谐范围
低功耗
tunable active inductor
CMOS
bandpass filter
miniaturization
wide tuning range
low power consumption
