Title :
A low-power noise-canceling LNA with downward impedance transformer and resistive feedback
Author :
Ran Zhang ; Zhijian Lu ; Dongpo Chen
Author_Institution :
Sch. of Microelectron., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
A 0.18μm CMOS LNA for low-power and wide-band applications is presented in this paper. Based on a common-gate-common-source (CG-CS) noise-canceling topology, a resistive feedback LNA and a downward impedance transformer are introduced to save more power while maintaining wide-band input matching. Post simulation shows that the NF is lower than 2.6dB with 2.4dB minimum; S11<;-13dB and S21=23dB from 1GHz to 1.8GHz. The LNA consumes only 3.2mA under 1.8V supply voltage within 0.04mm2 chip area.
Keywords :
CMOS analogue integrated circuits; UHF amplifiers; UHF integrated circuits; impedance convertors; integrated circuit noise; interference suppression; low noise amplifiers; low-power electronics; wideband amplifiers; CG-CS topology; CMOS LNA; common-gate-common-source; current 3.2 mA; downward impedance transformer; frequency 1 GHz to 1.8 GHz; low-power noise-canceling LNA; resistive feedback LNA; size 0.18 mum; voltage 1.8 V; wideband input matching; Abstracts; Computers; Noise measurement;
Conference_Titel :
Solid-State and Integrated Circuit Technology (ICSICT), 2014 12th IEEE International Conference on
Conference_Location :
Guilin
Print_ISBN :
978-1-4799-3296-2
DOI :
10.1109/ICSICT.2014.7021421
