Example 2: Calculate the total NF for the below-given diagram: To calculate the total noise figure for this cascaded stage, we’re going to calculate the total noise factor. The linear expression for total noise factor is equal to the noise …
The concept of noise in cascaded stages is similar to that of linearity, where the aim was to find the total IIP3. Read about Non-linearity in Cascaded stages. Here we need to find the total Noise Figure, NF. If we …
The design of an RF system consists of many different blocks, and sometimes it might include two amplifiers to amplify the weak signal. For example, the below figure shows the design with LNA and an additional amplifier for amplifying the …