Determining the Effect of an Electromagnetic Window or Radome Wall Upon a Circularly Polarized Transmission

Based on the vector resolution of the orthogonal components of a circularly polarized signal, and the known perpendicular and parallel transmission coefficients of a dielectric radome panel or EM window, a method is presented using a standard computer spreadsheet to predict both the circularly polarized attenuation (CPA) and the cross-polarization-ratio (XPR) performance of the panel