EE122 - Impedance and Admittance Concepts
This course assumes some knowledge of electrical engineering concepts. That being said, the majority of the material is accessible to a general audience who has gone through the prerequisites for this course.
In this course the concepts of impedance and admittance are explored. For one-port devices impedances and admittances are complex numbers, but for devices with two or more ports, impedance and admittance are matrices that relate currents and voltages at the device's ports. Related to these matrices are the ABCD matrix for two-ports, and the scattering matrix or S-parameters. These concepts are all introduced in this course.
The course outline is as follows:
- Introduction
- Linear Time Invariant (LTI) Systems
- Voltages and Currents
- Terminals and Ports
- One Port Devices
- Impedance (Z)
- Definition and Units
- Resistance (R)
- Reactance (X)
- Magnitude and Phase
- Combination of Impedances
- Series Combination
- Parallel Combination
- General Combination
- Examples/Exercises
- Impedance and Circuit Elements
- Capacitive Reactance (XC)
- Combination Formulas for Capacitance
- Series Combination
- Parallel Combination
- Examples/Exercises
- Inductive Reactance (XL)
- Combination Formulas for Inductance
- Series Combination
- Parallel Combination
- Examples/Exercises
- Resonance and Q
- Admittance (Y)
- Definition and Units
- Series Combination
- Parallel Combination
- Examples/Exercises
- Reflections from One-Port Devices
- Reflection Coefficient (Γ, ρ )
- Characteristic Impedance (Z0 )
- Return Loss
- VSWR
- Examples/Exercises
- Multiple Port Devices
- The Impedance Matrix
- The Admittance Matrix
- The ABCD Matrix
- Scattering parameters
- Summary
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