MOS Transistor parasitic capacitances are formed due to the separation of mobile charges at various regions within the structure. Parasitic Capacitances are the unwanted component in the circuit which are neglected while working in low-frequency. But cannot be avoided when …
In this circuit, the Vgs is the input signal applied between gate and source terminal, and we know that the change in drain current is linearly proportional to Vgs. In this model, if you consider the effect of channel and …
The operation point of the transistor is called biasing. Biasing is done before performing the small-signal analysis. To bias, the transistor, positive gate voltage is applied to the transistor. In this given circuit, VS is the small signal where the …
MOS refers to Metal-Oxide-Semiconductor, and MOSFET refers to Metal-Oxide-Semiconductor Field Effect Transistor. MOSFET has four terminals: drain, source, bulk, and gate. There are two types of MOSFET: NMOS type transistor and PMOS type transistor. The below figure shows the cross-section …
We know that the unit of power is watts; however, in RF systems, we measure power in decibels. A decibel is a logarithmic unit that indicates ratio or gain. When converting the power to decibels, it is compared to a …
Maximum power delivery is the main objective while designing a circuit in RF systems and the purpose of creating matching networks is to maximise the power transfer with very minimum loss.The diagram shows the antenna and Low Noise Amplifier (LNA) …
Maximum power is an important feature in RF systems. The main objective while designing a RF circuit is to have maximum power transfer with minimum loss to avoid wasted power. For example, while designing an antenna the aim is to …
The combination of real and imaginary values makes up a complex number. It is represented in the form of “R+jX,” where R is the real part and jX is the imaginary part. In a two-dimensional cartesian plane, the real components …
The RF circuits and blocks are analyzed in terms of power quantity; hence, in RF systems, we are more concerned about the power quantity rather than the voltage and current, for example, the power gain, which is the ratio of …
Power in circuits Power by definition is the product of current and voltage in a circuit. Power is an essential aspect to be considered while designing radio frequency and microwave circuits. The main aim while designing a circuit is to …