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Paper Title
LNA Design For X-Band Application

The low noise amplifier is an electronic amplifier used to amplify possibly very weak signals. It is usually located very close to the detection device to reduce losses in the feed line of any amplifier. An LNA is a key component which is placed at the front-end of radio receiver circuit. LNAs are one of the basic building blocks of any communication system. The purpose of LNA is to amplify the received signal to acceptable levels with minimum self-generated additional noise. This project presents LNA design at X band frequency of 10 GHZ. The gain of 15.121dB and noise figure minimum of 0.593, has been obtained for single stage design. The gain of the LNA is kept at certain value such that it doesn’t degrade noise figure. The s- parameter analysis and noise figure analysis has been made keeping the impedance of the circuit matched to 50 ohms. The input port reflection coefficient is -43.487dB and the output side reflection coefficient is 1.210dB. The X band LNA at 10GHZ are present in receiver circuits of amateur radio, amateur satellite, motion detectors, radars and missile guiding systems. Best example of X-band application is DRDO’s Battle field Search Radar (BFSR) which works at 10GHZ to 20 GHZ

Keywords- X-band, LNA, S parameters, Noise figure
Publication Details
Unique Identification Number - IJEDR1901067
Page Number(s) - 373-378
Pubished in - Volume 7 | Issue 1 | February 2019
DOI (Digital Object Identifier) -    http://doi.one/10.1729/Journal.19931
Publisher - IJEDR (ISSN - 2321-9939)
Cite this Article
  Bharathi.S,   "LNA Design For X-Band Application", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.7, Issue 1, pp.373-378, February 2019, Available at :http://www.ijedr.org/papers/IJEDR1901067.pdf
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