Designing Passive Components

When to Use

• Designing spiral inductors or interdigital capacitors for RF circuits
• Extracting inductance, capacitance, or self-resonant frequency from passive components
• Creating ring or split-ring resonators for filtering or metamaterial applications
• Designing coupled-line or Marchand baluns for balanced-to-unbalanced conversion
• Building Schiffman phase shifters or radial stubs

When NOT to Use

• Designing transmission lines (microstrip, stripline, CPW) — use matlab-design-pcb-txline
• Designing filters (bandpass, lowpass, bandstop) — use matlab-design-pcb-filter
• Designing couplers or splitters — use matlab-design-pcb-coupler
• Setting up substrate materials — use matlab-manage-pcb-material
• Running EM analysis after design — use matlab-analyze-em

Typical Workflow