Title :
A 0.8GHz–10.6GHz SDR low-noise amplifier in 0.13-μm CMOS
Author :
Lou, Shuzuo ; Luong, Howard C.
Author_Institution :
Dept. of Electron. & Comput. Eng., Hong Kong Univ. of Sci. & Technol., Hong Kong
Abstract :
An ultra-wideband low-noise amplifier (LNA) is designed for software-defined radios (SDR). Noise-cancellation common-gate stage is combined with capacitive cross coupling for wideband input impedance matching and small noise figure (NF). T-coils and inductive peaking are employed to extend the output bandwidth and to reject the noise from the loading resistors. Linearization using second-order intermodulation injection is adopted to improve the IIP3. Operated at 1.5 V from 0.8 GHz to 10.6 GHz, the 0.13-mum CMOS LNA measures 16-dB gain, -12 dB S11, 3.4-5.6 dB NF, and 1.6-dBm IIP3.
Keywords :
CMOS analogue integrated circuits; impedance matching; low noise amplifiers; software radio; ultra wideband technology; wideband amplifiers; CMOS; T-coil; capacitive cross coupling; frequency 0.8 GHz to 10.6 GHz; gain 16 dB; inductive peaking; noise-cancellation common-gate stage; second-order intermodulation injection; size 0.13 micron; software-defined radio; ultra-wideband low-noise amplifier; voltage 1.5 V; wideband input impedance matching; Bandwidth; Circuit noise; Frequency; Impedance matching; Low-noise amplifiers; Noise cancellation; Noise figure; Noise measurement; Resistors; Ultra wideband technology;
Conference_Titel :
Custom Integrated Circuits Conference, 2008. CICC 2008. IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4244-2018-6
Electronic_ISBN :
978-1-4244-2019-3
DOI :
10.1109/CICC.2008.4672021
