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## Low Noise Amplifier Design

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Small Signal Microwave Amplifier Design — Recommend this title to your library

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In Chapter 8, we introduced noise and noise figure in mathematical terms. In this chapter, we will show how this information applies to transistor amplifiers. Two-port S-parameters and noise characteristics are published by microwave manufacturers to ensure that the transistor can be easily utilized in an amplifier design. We have introduced a mathematical representation of noise created by a two-port. The noise added by the two-port is characterized by a few quantities that are essential to the two-port and the input reflection coefficient. Some transistor data sheets show noise parameters for a particular transistor at several frequencies.

Chapter Contents:

• 9.1 Introduction
• 9.2 Constant Noise Figure Circles
• 9.4 Low Noise Bias and Dynamic Range
• 9.5 Summary
• 9.6 Problems
• 9.7 Appendix

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