Reply To: How to change the size a Plane Wave Source

[Amrita Pati]

Hi Chuan,

The "Bloch/periodic" type of plane wave is used to represent a pure plane wave, as a result the solver has been designed to extend it through the entire simulation span. 

If you want to use a plane-wave of finite-size, you can use the "Diffracting" Type plane wave. The diffracting type plane wave is equivalent to plane waves passing through a rectangular aperture with the same size as the source span. It can also be used with PML boundaries but it will diffract.

Regards,
Amrita