Parallel planes or stripes is the most general example of transmission line. Schematically it is depicted below. The…
Equivalent currents and voltages in network analysis
RF and microwave circuits that operate on small frequencies can be treated like circuits with lumped parameter components.…
L-section impedance matching
The matching impedance process for RF circuits is very important. Impedance matching is also called the tuning process.…
Single-stub and double-stub matching
Stub tuning is an impedance matching technique, when an open-circuited or short-circuited transmission line is connected to the…
RLC circuit analysis and quality factor
Let's consider series and parallel RLC circuits with lumped parameters. They can be used for modelling resonators. RLC…
Series RLC resonant circuit
Series RLC resonant circuit is used to model a resonator at frequencies close to resonance. Resonator is a…
Parallel RLC resonant circuit
Parallel RLC resonant circuit is also used to model a resonator in the resonance mode. Resonator is a…
Short-circuited half wavelength line resonator
This post tells about short-circuited half wavelength line resonator. Half wavelength line resonator is depicted below, it is…
Short-circuited quarter wave transmission line
This post tells about short-circuited quarter wave transmission line. Quarter wave line resonator is depicted below, it is…
Single-phase circuits. Sine-wave signals.
Sine-wave signals In this post we will learn about AC circuits, magnetic circuits and transient processes in these…