Disadvantages of Noise Figure
let us see the disadvantages of Noise Figure
- An increased Noise figure is undesirable but for achieving a low noise figure, complex components are required that can increase the overall complexity of the circuit.
- Devices with low noise Figures are quite expensive due to their ability to prevent signal deterioration therefore involving components with low noise figures can increase the overall cost of the circuit.
- The Noise Figure method becomes unreliable because the Noise Figure is dependent on certain environmental factors like temperature, humidity, and other fields. Any variation in the environment will lead to fluctuations in the noise figure of the device giving inconsistent results.
- Noise Figure calculation is a tedious task. It involves certain special tests which are complex and method-specific. The verification can also be a difficult task which makes scientists choose other methods for performance analysis.
- Noise Figure is suitable only for new components. Over some time, devices begin to age leading to their wear and tear. Therefore, we can’t use noise figures in the long run.
Noise Figure
Often while dealing with signals in electronics and communication systems, we encounter distortion in signals due to noise. Noise is an unwanted disturbance that can attenuate our signal which disrupts making it difficult to study the signals. In this article, we will study the noise figure which is an important instrument used for measuring the quality of signals.
Later, we will understand the work behind calculating the noise figure. Through a diagram, we will also see the formula used for calculating noise figures with a physical understanding of the formula. Some solved examples have been provided to enhance the understanding of readers about the topic. We will look at the advantages, disadvantages, and applications of noise figures in the real world. In the end, we will conclude the article with some frequently asked questions that readers can refer to
Table of Content
- Noise Figure
- Working Principle
- Mathematical Expression
- Construction
- Solved Examples
- Applications
- Advantages
- Disadvantages