RF Microwave & Transmission Line Theory - RAHRF200

Define and analyze the characteristic impedance of a transmission line by relating voltage and current through phasors, gamma, and beta, and explain how wavelength and phase velocity arise.

Derive time domain equations from phasors to show how voltage and current on a transmission line propagate in time and space, including reflections and standing waves.

Learn how reflections create standing waves on a transmission line, derive Vmax and Vmin from the incident and reflected waves, and relate them to the standing wave ratio.

Find impedances on the smith chart by normalizing 100 + 100 j to 50 ohms, then read real and imaginary parts; practice with a parallel capacitor-resistor network and reflection coefficient.

Design a 50-ohm matching circuit for a 60 − j80 ohm load using single-stub tuning on the Smith chart to cancel imaginary admittance.

Design wideband impedance matching with a tool to connect a 100 Ω load to a 50 Ω source from 3–5 GHz, using a bandpass lumped network and series RC.

learn how microstrip lines act as planar transmission lines for designing matching circuits, and practice defining substrate parameters, drawing layouts in ads, and performing em simulations.

Explore an alternative copper substrate definition with a two-metal layer, align conductors to ground reference conductor two, and compare simulations to the previous method for validation in ADS.