TR Card

This card is used to calculate the transmission and reflection coefficients for a plane wave interacting with a planar structure.

On the Request tab, in the Solution requests group, click the  Transmission / reflection (TR) icon.

Figure 1. The TR - Calculate transmission and reflection coefficients for incident plane wave dialog.


Parameters:

Request name
The name of the request.
X, Y, Z coordinate
Cartesian coordinates of the position of the plane wave in metres. (is scaled by the SF card).
The transmission coefficient is defined as
τ= E t E i
The reflection coefficient is defined as
ρ= E r E i
The figure below shows the incident, transmitted and reflected electric fields on a planar structure.
Figure 2. A plane wave interacting with a planar structure.


Note that for a transmission and reflection request, only a single plane wave source is allowed (that is no other sources are allowed in the model). The model should contain either of the following:
  • A planar multilayer substrate without any other geometry/mesh in the model
  • A 2D periodic boundary condition (PBC).