用于无线应用的CMOS RF带通滤波器的宽调谐范围

Zhiqiang Gao, Mingyan Yu, Y. Ye, Jianguo Ma
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引用次数: 11

摘要

提出了一种低压高q有源电感的二阶射频带通滤波器。在滤波器中,描述了一种可调谐高q CMOS有源电感器的设计技术,该电感器工作在宽射频波段。仿真结果表明,在1.8V电源下,采用0.25 um CMOS工艺的滤波器的中心频率可工作在1.60G ~ 2.45GHz频段,当fc≈2.45GHz时,质量因子可从30 ~ 200调整。
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Wide Tuning Range of A CMOS RF Bandpass Filter For Wireless Applications
A 2ndorder RF bandpass filter with high-Q active inductor using low-voltage is presented. In the filter, a design technique for a tunable high-Q CMOS active inductor operating in the wide RF-band is described. Simulated performance is presented showing that the center frequency of filter using a 0.25-um CMOS process can be operated at the 1.60G∼2.45GHz frequency band under a 1.8V power supply and quality factor is adjusted from 30∼200 when fc≈2.45GHz.
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