Course record
High-Frequency Engineering
I revisit transmission lines through Wilkinson and branch-line networks using my assignments, Cadence circuits, and S-parameter figures.
Unit numbers arrange the saved assignments and circuits by concept flow rather than attendance weeks.
12 Units
Weekly study sequence
- W01Distributed-Circuit ViewElectrical length · Wavelength · Lumped and distributed models
- W02Transmission-Line EquationsCharacteristic impedance · Propagation constant · Forward and reflected waves
- W03Reflection Coefficient and VSWRLoad mismatch · Reflection coefficient · Return loss
- W04Reading the Smith ChartNormalized impedance · Admittance conversion · Constant-resistance circles
- W05Impedance MatchingL-networks · Quarter-wave transformers · Single-stub matching
- W06Microstrip LinesEffective permittivity · Line width · Substrate height
- W07S-Parameter AnalysisS11 and return loss · S21 and insertion loss · Reference impedance
- W08Cadence Circuit and Simulation WorkflowSchematic construction · Port setup · Frequency sweeps
- W09L-Matching and Stub ResultsSeries reactance · Shunt susceptance · Open stubs
- W10Wilkinson Power DividersQuarter-wave arms · Equal split · Isolation resistor
- W11Branch-Line HybridsNinety-degree phase difference · Four-port network · Coupled and isolated ports
- W12Re-reading S-Parameter FiguresMarker frequency · Target-result comparison · Resonance shift
How I use this hub
I open one unit at a time, restate the core terms, and compare equations, circuits, code, and saved results.