Phase angle Polarization Error (degree) (%) (%) 15 5.3 5.0 20 8.2 5.0 25 8.1 5.0 30 11.2 5.0 40 15.5 5.0 50 16.4 5.0 60 22.8 5.0 70 23.5 5.0 80 27.3 5.0 90 31.1 5.0 100 27.4 5.0 110 26.9 5.0 120 20.5 5.0 130 13.0 5.0 140 5.8 5.0 150 4.7 5.0 160 2.2 4.3 165 1.6 4.0