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matlab-analyze-em

Compute S-parameters for RF PCB electromagnetic models and visualize fields.

883|109|Updated Apr 3, 2026
Search Tags:#matlab#solver selection#rf#s-parameters#electromagnetic simulation#mesh control#fields and currents
One-click install
npx skills add https://github.com/matlab/matlab-agentic-toolkit --skill matlab-analyze-em
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: matlab-analyze-em
Source: https://github.com/matlab/matlab-agentic-toolkit/tree/main/skills-catalog/rf-and-mixed-signal/matlab-analyze-em
Command: npx skills add https://github.com/matlab/matlab-agentic-toolkit --skill matlab-analyze-em

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps you analyze the electromagnetic (EM) performance of RF PCB components by computing S-parameters and visualizing E/H fields and surface effects to validate designs and select appropriate solver settings.

Core Features & Use Cases

  • S-parameter extraction for RF PCB components: Compute insertion/return loss and multi-port S-parameters from MoM or FEM-backed models.
  • Solver selection and control: Choose between MoM (default) and FEM via pcbComponent.SolverType, including FEM boundary condition setup (e.g., absorbing vs PML).
  • Performance insight via visualization: Visualize E/H fields, surface currents, and charge distributions to diagnose why specs are met or missed.
  • Accuracy vs speed tooling: Use interpolating sweeps (interp / interpWithGrad), frequencySweep-driven controlled interpolation, and mesh control (MaxEdgeLength plus memoryEstimate guardrails).
  • Behavioral S-parameters for fast estimates: Use Behavioral=true for quick analytic S-parameter exploration where applicable (not for fields/currents/charge).
  • Typical workflow fit: After material setup and component/layout creation, run this Skill to validate EM performance before optimization, circuit integration, and layout export.

Quick Start

Ask the agent to compute and plot S-parameters (and optionally fields/currents) for your RF PCB component over your target frequency band, using interpolating sweep and mesh/memory checks as needed.

Frequently Asked Questions about matlab-analyze-em

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I compute S-parameters for an RF PCB electromagnetic model?▼

To compute S-parameters for an RF PCB model, use the sparameters function with a SweepOption like interp or frequencySweep to extract insertion and return loss across a target frequency band.

When should I use FEM vs MoM solver for RF PCB electromagnetic simulation?▼

Choose MoM for standard RF PCB simulations, or switch to FEM via pcbComponent.SolverType when you need specific boundary conditions like absorbing or PML for complex electromagnetic structures.

Can I speed up S-parameter sweeps without losing accuracy in RF PCB analysis?▼

You can accelerate S-parameter sweeps using interpolating sweep options such as interp or interpWithGrad, while using mesh control and memoryEstimate guardrails to maintain accuracy.

How do I visualize E/H fields and surface currents on an RF PCB component?▼

Visualizing E/H fields, surface currents, and charge distributions on RF PCB components helps diagnose why specifications are met or missed after computing S-parameters.

What is the Behavioral S-parameter option used for in RF PCB simulation?▼

Setting Behavioral=true provides quick analytic S-parameter exploration for fast estimates, but it does not compute fields, currents, or charge distributions.

How do I validate mesh density before solving an RF PCB electromagnetic model?▼

Use meshEstimate-driven pre-solve validation combined with MaxEdgeLength control to manage the accuracy-speed tradeoff and prevent memory issues in mesh-dense PCB structures.

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