Page 280 - Analog and Digital Filter Design

Phase-Shift Networks (All-Pass Filters) 2 7 7

P Network N Network
Order Pole Pole Error (Rads) Rejection
4 9.933075 1.973738 0.096391 26.33 dB
0.506653 0.100674
6 15.50474 1.045227 0.014963 42.52dB
1.570845 0.6366
0.247205 0.064496
8 20.966152 6.067807 0.002323 58.7dB
2.8007 19 1 .-to2562
0.7 1298 1 0.35705 1
0.164804 0.047696

10 26.379762 8.024087 0.00036 1 74.88dB
4.045228 2.267 152
1.31061 0.763003
0.441082 0.247205
0.124625 0,037908
12 3 I .768673 9.933072 0.000055975 91.06dB
5.267617 3.15751
1.973739 1.252754
Table 9.16
0.798241 0.506653
Quadrature Pole 0.316705 0.189839
Locations 0.100674 0.031478
(WbIWa = 50)

Angle = 1.550795 rads-' or 88.85404 degrees
50
Q = 0.393999 K = 5.298747 K' = 1.570953 W~ICO~
=