ABSTRACT
Q factor characterizes the rate of dissipation of energy from an oscillating system. In practice, circuit elements are not perfect and the energy initially contained within this circuit would be lost by the circuit and the oscillations would decrease in amplitude as the energy is diminished. Energy loss in a circuit is represented by that in a resistor, which can be included in one of two ways. In the first way, the resistor is in series with the capacitor and inductor. A second representation is a parallel resistor. It is very important to understand the nature of the circuit resistance. This resistance represents all of the losses in the resonant circuit. To determine resonance and the bandwidth of the transmission line section, a signal generator is loosely coupled into the transmission line section with a loop, the radio frequency energy is sampled, and the signal generator is also loosely coupled with either a capacitive probe or another loop.
