Low power reconfigurable multi-mode LNA utilizing subthreshold bias and low-Q inductors

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 othe...

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Bibliographic Details
Main Authors: Aravinth Kumar, A. R., Singh, Shiv Govind, Dutta, Ashudeb
Format: Conference Proceeding
Language:English
Subjects:
Capacitors
Dual band
Impedance
Impedance matching
Inductors
Narrowband
Wideband
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Summary: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.
ISSN:0271-4302
2158-1525
DOI:10.1109/ISCAS.2015.7168717