Thermal noise in the linear graded channel junction FET |
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Authors: | Thomas A DeMassa Srinivasan R Iyer |
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Institution: | College of Engineering Sciences, Arizona State University, Tempe, AZ 85281, USA |
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Abstract: | The limiting noise mechanism in field effect transistors is thermal noise of the conducting channel. An analysis of the thermal noise in a linearly tapered inhomogeneous channel FET is presented leading to a solution for the open circuit noise voltage and the short circuit noise current. Improvement in the open circuit noise voltage for the inhomogeneous FET is shown directly from a comparison with the solution for a homogeneous channel FET. |
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