# PECMedium

PECMedium represents a perfect electric conductor.

This object corresponds to tidy3d.PECMedium (opens new window).

# Field Behavior

At a PEC surface:

Et=0,En≠0,Ht≠0,Hn=0E_t = 0,\quad E_n \ne 0,\quad H_t \ne 0,\quad H_n = 0

The electric field is normal to the PEC surface, while the magnetic field is tangential to the surface.

NOTE

PEC is often described as an electric wall: near the surface, E\mathbf{E} is normal to the wall and H\mathbf{H} is tangential to the wall.

# Name

name: Optional unique name for the medium.

# Type

type: Medium model used by this material entry.

  • Options: PECMedium

# Color

color: Display color used for the medium in the GUI.

  • Type: color
  • Default: automatically assigned by the GUI

# Advanced

set_from_global_frequency: Toggle whether the frequency range is set from the Global Settings frequency range.

  • Options:
    • True: Use the global frequency range and disable manual frequency range inputs.
    • False: Manually set frequency_range.

frequency_range: Optional range of validity for the medium.

  • Type: two float numbers
  • Unit: Hz, kHz, MHz, GHz, THz, or other available frequency unit
  • Default: None

allow_gain: Toggle whether the medium is allowed to be active.

  • Options: True/False
  • Default: False

← PMCMedium →