CHAPTER 4 - Impedance Matching
198
4.7 Video Tutorials
A brief summary of the content of the training videos which are relevant to this chapter is shown
below.
VIDEO
REFERENCE
CONTENT
4.1
Resistors, capacitors and inductors at RF. Time domain Voltage and current
waveforms at high frequency and their relationship to components impedance.
Comparison of mathematical impedance calculation and impedance values
obtained from voltage and current phase and amplitude relationships.
RC circuits and RL circuits.
4.2
L-section matching. Physical mechanisms which explain how capacitors and
inductors achieve impedance transformation.
Vector representation of current and voltage which illustrates their relative
phases by means of phasors.
Physical effect of shunt and series reactive elements. Representation of real and
imaginary parts of impedance on rectangular graphs and how their adjustment
allows us to achieve the desired V/I ratio and Vphase-Iphase relationship.
4.3
L-section matching
using different simulation techniques. Further insight into
measurement ports and relationship between impedance and reflection
coefficient. Representation of real and imaginary impedance by using
measurement ports.
4.4
Representation of complex impedances on a Smith chart. Analysing series RLC
circuits using Smith Charts. Constant resistance circles. Frequency response of
RLC networks and resonance.
4.5
Relationship between admittance and reflection coefficient. Normalising
conductance Y
0
and its relationship to measurement ports. Admittance Smith
chart. Constant Conductance Circles. Analysis of parallel RLC using Admittance
Chart. Resonance.
4.6
Impedance matching. Impedance Smith chart. Resistance and reactance. Series
capacitors and series inductors.
4.7
Impedance Matching. Admittance Smith chart. Shunt Capacitors and shunt
inductors. Conductance and Susceptance.
4.8
Impedance matching on Smith chart with series and parallel elements.
Impedance and admittance coordinates. L-section matching on Smith chart as
applied to two resistive terminations RL>RS.
4.9
L-section matching on Smith chart as applied to two resistive terminations RL
