Polarization of incident plane wave in HFSS-IE

- March 28, 2019 at 2:29 am
  
  samihawasli
  Subscriber
  
  Hello,
  
  I am trying to understand what's the direction of propagation and polarization for a incident plane wave, defined using spherical coordinates and swept about an axis. There is an example Ansys provides, and in the documentation it shows how to define a plane wave. I do not fully understand what is meant by "the polarization is phi directed".
  
  When defining a plane wave in Cartesian coordinates, the k and Eo vector are quite obvious. But in the example above, where are k and Eo pointed?
  
  Thanks in advance,
  
  Sami
- May 3, 2019 at 6:44 pm
  
  rtk
  Ansys Employee
  
  The Eo & k entity of Plane wave excitation in Cartesian coordinates denotes the resultant of E field & direction of wave propagation, respectively.
  
  Whereas, in Spherical coordinates IWavePhi & IWaveTheta decides the incident angle or direction of propagation, and values of Eo vector (phi & theta) determines the E vector components, thereby defines the resultant E.
  
  So 'the polarization is phi directed' means the E vector (resultant) has only Ephi component.
- December 30, 2019 at 2:01 am
  
  bamoghol
  Subscriber
  
  Hi roshnatk,
  
  Please, do you know how set the floquet port excitation in order to get the polarization 45deg out of the principale axis x and y?
  
  Thanks for your help.