A 0.2-3 GHz Inductor-Less LNA Using Noise-Canceling and Dual-Resistor Feedback Technique

IF 4 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Circuits and Systems II: Express Briefs Pub Date : 2025-01-20 DOI:10.1109/TCSII.2025.3531994

Junfan Yan;Wenjie Feng;Pei Qin;Haoshen Zhu;Yunfei Cao;Wenquan Che;Quan Xue

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Abstract

In this brief, an inductor-less low-noise amplifier (LNA) that utilizes a noise-canceling technique along with dual-resistor feedback is proposed. The conventional single-resistor feedback structure exhibits a performance constraint that limits the relationship between power gain and input matching. In contrast, the dual-resistor feedback structure proposed in this brief overcomes this limitation, enabling both high gain and low noise while maintaining good input matching. The dual-resistor feedback configuration includes a local feedback resistor which enhances the gain. Additionally, the global feedback resistor directly connect the inputs and outputs of the circuit, thereby breaking the constraints between the properties through feedback. The proposed LNA fabricated in 65-nm CMOS technology exhibiting a minimal NF of 2.08 dB within a 3-dB bandwidth that spans from 0.25 to 2.83 GHz, along with a peak power gain of 16.53 dB. The circuit operates with a power consumption of 10.6 mW under a supply voltage of 1.1 V, while occupying a core area of only 0.012 mm2.

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来源期刊

IEEE Transactions on Circuits and Systems II: Express Briefs 工程技术-工程：电子与电气

CiteScore

7.90

自引率

20.50%

发文量

883

审稿时长

3.0 months

期刊介绍： TCAS II publishes brief papers in the field specified by the theory, analysis, design, and practical implementations of circuits, and the application of circuit techniques to systems and to signal processing. Included is the whole spectrum from basic scientific theory to industrial applications. The field of interest covered includes: Circuits: Analog, Digital and Mixed Signal Circuits and Systems Nonlinear Circuits and Systems, Integrated Sensors, MEMS and Systems on Chip, Nanoscale Circuits and Systems, Optoelectronic Circuits and Systems, Power Electronics and Systems Software for Analog-and-Logic Circuits and Systems Control aspects of Circuits and Systems.