EBG structure
 
An EBG structure is consisted of 6 layers of dialectic cylinders in one direction and the periodic structure in another direction, and the cylinder is infinitely long. GEMS only needs to simulate one element (6 cylinders) and the domain is truncated by the PML and PBC (periodic boundary condition). The default options are used to generate the reflection and transmission coefficients.

EBG Structure
 

Time domain field distribution
 
 
 
 
Reflection and transmission
coefficients
 

Time domain reflected field
 

Reflection coefficient
 
Frequency domain field
distribution

 

Transmission coefficient