Noise-Cancelling CMOS Active Inductor and Its Application in RF Band-Pass Filter Design. (22nd February 2010)

• Record Type: Journal Article
• Authors: Vema Krishnamurthy, Santosh; El-Sankary, Kamal; El-Masry, Ezz
• Other Names: Lu Liang-Hung Academic Editor.
• Is Part Of: International journal of microwave science and technology. Volume 2010(2010)
• Publication Date: 2010-02-22
• Subjects: Radio frequency -- Periodicals; Microwave circuits -- Periodicals; Radiofréquences; Circuits pour micro-ondes; Microwave circuits; Radio frequency; Periodicals; Electronic journals; 621.3813
• DOI: 10.1155/2010/980957
• Languages: English
• ISSNs: 1687-5826

Abstract

Abstract : A CMOS active inductor with thermal noise cancelling is proposed. The noise of the transistor in the feed-forward stage of the proposed architecture is cancelled by using a feedback stage with a degeneration resistor to reduce the noise contribution to the input. Simulation results using 90 nm CMOS process show that noise reduction by 80% has been achieved. The maximum resonant frequency and the quality factor obtained are 3.8 GHz and 405, respectively. An RF band-pass filter has been designed based on the proposed noise cancelling active inductor. Tuned at 3.46 GHz, the filter features total power consumption of 1.4 mW, low noise figure of 5 dB, and IIP3 of −10.29 dBm.