Abstract
The two major applications of microwave remote sensors are radiometer and radar. Lots of researches have been conducted on the various aspects of radiometer and radar but internal logical design is mostly ignored by researchers because of its digital logic and complex nature. This paper focus on radiometer from a design point of view and a low noise amplifier is designed and proved mathematically to ensure the high performance and working. The paper is based on a study of radio frequency communications and engineering, as well as an understanding of the radio frequency (RF) circuits. Moreover, practical implementation and performance analysis of low noise amplifier for radiometer is also discussed in this paper. Scientifically, the paper is divided into two parts. In the first part, some background study about the radiometer and its types was carried out so that a basic understanding can be developed by the reader. And in the second part low noise amplifier (LNA) for the radiometer was designed. Key words: Radiometer, sensors low noise amplifier, advanced design system (ADS), radar, bandwidth.
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