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Title: A fully integrated dual-band LNA with switched loads
Authors: García-Vázquez, Hugo 
Khemchandani, Sunil L. 
Ramos-Valido, Dailos 
Del Pino, Javier 
UNESCO Clasification: 3307 Tecnología electrónica
Keywords: Optical amplifiers
Electric impedance
Circuit resonance
Microwave optics
Integrated circuits
Frequency tuning
Parts and Equipment Merchant Wholesalers
Issue Date: 2014
Publisher: 0895-2477
Journal: Microwave and Optical Technology Letters 
Abstract: A fully integrated dual‐band low noise amplifier (LNA) is presented. The proposed circuit combines a wideband input impedance matching with switched resonant circuits' loads at the output. As the tuning mechanism is placed at the output of the LNA and no input reconfiguration is needed, the noise contribution is minimized. Experimental results from a test chip prototype in BiCMOS 0.35‐µm technology are shown that validate the proposed circuit. The designed two‐band amplifier provides a gain of 13 and 11 dB at 1.8 and 2.4 GHz, respectively, with a noise figure of 3.8 and 4.1 dB while drawing 16 mW from a 3.3‐V supply.
ISSN: 0895-2477
DOI: 10.1002/mop.28524
Source: Microwave and Optical Technology Letters[ISSN 0895-2477],v. 56, p. 2107-2110
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