# Knowledge Base

 transmission_avg We've made some changes. Use 'Ctrl-F5' to clear your browser cache.

Returns the total spectral average power through a monitor surface, normalized to the total spectral average of the source. See the Units and normalization - Spectral averaging section for more information.

where

Tavg is the normalized total spectral average transmission

<P> is the total spectral average Poynting vector

dS is the surface normal

The normalization state (cwnorm or nonorm) does not affect the result because of the source power normalization.

 Supported Product: FDTD, MODE

 Syntax Description out = transmission_avg ("monitorname"); Returns the total spectral average transmission through monitorname. It must be obvious from the shape of the monitor which axis is normal to the monitor surface. out = transmission_avg ("monitorname", option); The additional argument, option, can have a value of 1 or 2. If it is 2, the data is unfolded where possible according to the symmetry or anti-symmetric boundaries if it comes from a monitor that intersect such a boundary at x min, y min or z min. The default value of option is 2.

Example

Please refer to transmission and Spectral averaging - Usage