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Volume : II, Issue : VII, August - 2012 Characterisation Of Low Noise Amplifier MAULIK B.PATEL, ABHISEK CHOBEY and SUNIL B.PATEL Published By : Laxmi Book Publication Abstract : Amplification is one of the most basic and prevalent microwave circuit functions in
modern RF and microwave systems. Early microwave amplifiers relied on tubes, such as
klystrons and traveling-wave tubes, or solid-state reflection amplifiers based on the
negative resistance characteristics of tunnel or varactor diodes. But due to the dramatic
improvements and innovations in solid-state technology that have occurred since the
1970s, most RF and microwave amplifiers today use transistor devices such as Si or SiGe
BJTs, GaAs HBTs, GaAs or InP FETs, or GaAs HEMTs. Microwave transistor amplifiers
are rugged, low-cost, reliable, and can be easily integrated in both hybrid and
monolithic integrated circuitry. Transistor amplifiers can be used at frequencies in
excess of 100 GHz in a wide range of applications requiring small size, low-noise figure,
broad bandwidth, and low to medium power capacity. Although microwave tubes are still
required for very high power and/or very high frequency applications, continuing
improvement in the performance of microwave transistors is steadily reducing the need
for microwave tubes Keywords : Article : Cite This Article : MAULIK B.PATEL, ABHISEK CHOBEY and SUNIL B.PATEL, (2012). Characterisation Of Low Noise Amplifier. Indian Streams Research Journal, Vol. II, Issue. VII, http://oldisrj.lbp.world/UploadedData/1228.pdf References : - Norm Dye, Helge Granberg,”.Radio Frequency Transistors: Principles and Practical applications”.Boston; London: Butterworth-Heinman, 1993.
- E.A. Wolf, roger Kaul,”Microwave Engineering Systems and Applications”., John Wiley and Sons, 1988, ISBN 0- 471-63296-4
- David M.Pozar,”Microwave engineering” Third addition,willey india pvt.ltd.Prentice Hall, 1984.
- Gonzalez,Guillermo,”.MicrowaveTransistorsAmplifiers:AnalysisandDesign.”,Englewood cliffs London: Prentice Hall, 1984.
- Chris Bowik, .”RF circuits design”Oxford, Newnes 1997
- Allan w.Scott,Rex frobenius “ RF Measurments for cellular phones and wireless data”
- www.agilent.com
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