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ISSN: 2321-9939 | ESTD Year: 2013

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Paper Title
Realization and Measurement of High Frequency Low Noise Amplifier for Satellite Applications
  Bhavuk Sharma

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 This active antenna arrangement is frequently used in microwave systems like GPS, because coaxial cable feedline is very lossy at microwave frequencies. An LNA is a key component which is placed at the front – end of the radio receiver circuit. Using an LNA, the effect of noise from subsequent stages of the receive chain is reduced by the gain of the LNA, while the noise of the LNA itself is injected directly into the received signal. Thus, it is necessary for an LNA to boost the desired signal power while adding as little noise and distortion as possible, so that the retrieval of this signal is possible in the later stages in the system. For low noise, the amplifier needs to have a high amplification in its first stage. The four most important parameters in LNA design are: gain, noise figure and impedance matching. The design for LNA is based mainly upon the S-parameters of a transistor.

Keywords- Amplifier, GPS, Coaxial Cable, lossy
Publication Details
Unique Identification Number - IJEDR1402081
Page Number(s) - 1783-1795
Pubished in - Volume 2 | Issue 2 | June 2014
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)
Cite this Article
  Bhavuk Sharma,   "Realization and Measurement of High Frequency Low Noise Amplifier for Satellite Applications", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.2, Issue 2, pp.1783-1795, June 2014, Available at :http://www.ijedr.org/papers/IJEDR1402081.pdf
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