Title :
Low power reconfigurable multi-mode LNA utilizing subthreshold bias and low-Q inductors
Author :
Aravinth Kumar, A.R. ; Singh, Shiv Govind ; Dutta, Ashudeb
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol. Hyderabad, Hyderabad, India
Abstract :
This paper presents a low power reconfigurable narrowband, concurrent multiband, wideband multimode LNA for multi-standard applications. Subthreshold region biasing, quality factor aware impedance matching, component sharing between different modes are employed. Input matching is unbounded from other performance parameter. Proposed LNA works in narrowband mode at 1.8GHz, 2.1GHz and 2.4GHz, dualband mode at 1.9GHz and 5.4GHz and in wideband mode 2-5GHz. The voltage gain varies from 11dB to 18dB, noise figure from 5.5dB to 8.5dB and CP1dB -9.2dBm to -17.4dBm over different modes, while consuming 1.8mW in narrowband and 3.84mW in other modes from 1.8V supply in UMC180nm CMOS process.
Keywords :
CMOS integrated circuits; MMIC amplifiers; UHF amplifiers; field effect MMIC; low noise amplifiers; low-power electronics; UMC CMOS process; concurrent multiband LNA; frequency 1.8 GHz; frequency 2 GHz to 5 GHz; frequency 5.4 GHz; low noise amplifier; low power LNA; low-Q inductors; multimode LNA; multistandard applications; narrowband LNA; power 1.8 mW; power 3.84 mW; reconfigurable LNA; size 180 nm; subthreshold bias; voltage 1.8 V; Capacitors; Dual band; Impedance; Impedance matching; Inductors; Narrowband; Wideband;
Conference_Titel :
Circuits and Systems (ISCAS), 2015 IEEE International Symposium on
Conference_Location :
Lisbon
DOI :
10.1109/ISCAS.2015.7168717
