Improved quality-factor of cascode-grounded active inductor

To solve the existing problems such as lower quality factor and inductance value in common active inductor, a novel cascode-grounded active inductor circuit topology was proposed. The R f is added and the RC feedback cascode positive feedback is formed used to substantially improve equivalent induct...

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Bibliographic Details
Main Authors: Zhenjie Guo, Wanrong Zhang, Hongyun Xie, Chunbao Ding, Zhiyi Lu, Guanghui Xing, Yujie Zhang
Format: Conference Proceeding
Language:English
Subjects:
Active inductors
Gyrators
Impedance
Inductance
Q factor
Radio frequency
Transistors
Online Access:Request full text
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Description
Summary:To solve the existing problems such as lower quality factor and inductance value in common active inductor, a novel cascode-grounded active inductor circuit topology was proposed. The R f is added and the RC feedback cascode positive feedback is formed used to substantially improve equivalent inductance and quality-factor. This novel active inductor was implemented by using a TSMC 0.35-μm 3P4M SiGe BiCMOS technology, which demonstrates a maximum quality factor of 2563 with an inductance of 3.165nH at 4.3GHz.
DOI:10.1109/ICMMT.2012.6230446