Band-Reject
4-Pole Pair
Appendix A
Amplitude Response Curves
Q10
Phase Response Curves
360
270
180
90
0
Q3
-10
-20
-30
-40
-50
-60
-70
Q3
0
Q10
-90
-180
-270
-360
1
2
3
2
3
.8
0.1
4 5 6 7 8 1.0
4 5 6 7 810.0
.9
1.1
1.2
Normalized Frequency (f/fo)
Normalized Frequency (f/fo)
Normalized Theoretical Amplitude Data
Normalized Theoretical Phase Data
Q = 3
Q = 10
Phase
Mag
(deg)
Q = 3
(-) (+)
f /f f /f
Q = 10
(-) (+)
f /f f /f
o
Amp
(dB)
f <f <f
f <f <f
L O H
f /f f /f
L O H
f /f f /f
O
O
O
O
o
o
o
-0.10 0.799 1.251 0.935 1.069
-0.25 0.809 1.236 0.938 1.066
-0.50 0.818 1.223 0.941 1.062
-1.00 0.828 1.208 0.945 1.059
-1.50 0.835 1.198 0.947 1.056
-2.00 0.839 1.191 0.949 1.054
-2.50 0.844 1.185 0.95 1.053
-3.00 0.847 1.180 0.951 1.051
-5.00 0.858 1.165 0.955 1.047
-10.00 0.877 1.140 0.961 1.040
-15.00 0.892 1.121 0.966 1.035
-20.00 0.905 1.105 0.97 1.030
-25.00 0.916 1.092 0.974 1.027
-30.00 0.925 1.081 0.977 1.024
-35.00 0.933 1.072 0.979 1.021
-40.00 0.939 1.065 0.982 1.019
-45.00 0.945 1.059 0.983 1.017
-50.00 0.949 1.054 0.984 1.016
-55.00 0.952 1.050 0.985 1.015
-60.00 0.954 1.048 0.986 1.014
1.0 0.020 49.66 0.067 14.88
2.5 0.050 19.91 0.164 6.087
5.0 0.100 10.03 0.306 3.268
10.0 0.194 5.160 0.504 1.985
15.0 0.279 3.590 0.621 1.609
20.0 0.352 2.838 0.696 1.437
25.0 0.416 2.405 0.746 1.340
30.0 0.470 2.129 0.783 1.278
35.0 0.515 1.940 0.810 1.235
40.0 0.555 1.803 0.831 1.204
45.0 0.588 1.700 0.848 1.180
50.0 0.617 1.620 0.861 1.161
60.0 0.664 1.505 0.882 1.133
70.0 0.701 1.427 0.897 1.115
80.0 0.729 1.372 0.909 1.101
90.0 0.752 1.330 0.917 1.090
120.0 0.797 1.255 0.934 1.071
150.0 0.824 1.214 0.943 1.060
180.0 0.844 1.185 0.950 1.052
210.0 0.862 1.160 0.957 1.045
8
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