Polarization Ratio

The IEEE defines the (complex) polarization ratio as, "For a given field vector at a point in space, the (magnitude of the) ratio of the complex amplitudes of two specified orthogonally polarized field vectors into which the given field vector has been resolved." [Ref. 2] HFSS computes the following six polarization ratios at each selected aspect angle:

 

 Circular/LHCP equals the absolute value of E sub L over E sub R.

(1)

 

 Circular/RHCP equals the absolute value of E sub R over E sub L.

(2)

 

 Spherical over Phi equals the absolute value of E sub phi over E sub theta.

(3)

 

(4)

 

 Ludwig, 3 over X equals E sub x over E sub y.

(5)

 

 Ludwig, 3 over Y equals the absolute value of E sub Y over E sub x.

(6)

[2] IEEE Standard Definitions of Terms for Antennas, IEEE Transactions on Antennas and Propagation, vol. AP-31 num. 6, Nov. 1983.