Module faraday 

Faraday cage and electromagnetic shielding simulation. Computes shielded fields, induced surface charges, and skin depth.

Structs

CageRenderer

Renderer for Faraday cage visualization.

ConductingSphere

Analytical solution for EM shielding by a conducting sphere.

FaradayCage

A Faraday cage defined by boundary points forming a closed polygon.

Functions

compute_shielded_field

Compute the shielded electric field inside and around a Faraday cage. The field inside a perfect conductor is zero; outside it is distorted. Returns field vectors on a grid.

induced_surface_charge

Compute induced surface charge density on the cage boundary due to an external E field. The surface charge is proportional to the normal component of the external field.

shielding_effectiveness

Shielding effectiveness in dB. SE = 20 * log10(E_incident / E_transmitted) For a good conductor: SE depends on frequency and thickness.

skin_depth

Skin depth: delta = sqrt(2 / (omega * mu * sigma))