Band-Pass

4-Pole Pair

Appendix A

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e-mail: sales@freqdev.com Web Address: http://www.freqdev.com

Phase Response Curves

Normalized Frequency (f/fo)

1.0

0.9

0.8

0.7

0.6

-360

-270

-180

-90

0

90

180

270

360

1.1 1.2

1.4

1.3

1.5 1.6

0.1

1.0

10.0

2

3 4 5 6 78

2

3 4 5 6 78

Normalized Frequency (f/fo)

-360

-270

-180

-90

0

90

180

270

360

Normalized Theoretical Phase Data

Q = 1

Q = 2

Q = 5

Q = 10

(+)

(-)

(+)

(-)

(+)

(-)

(+)

(-)

Phase

Mag

(deg)

f/fo f/fo

f/fo f/fo

f/fo f/fo

f/fo f/fo

1.0 0.997 1.003 0.998 1.002 0.999 1.001 1.000 1.000

2.5 0.992 1.008 0.996 1.004 0.998 1.002 0.999 1.001

5.0 0.983 1.017 0.992 1.008 0.997 1.003 0.998 1.002

10.0 0.967 1.034 0.983 1.017 0.993 1.007 0.997 1.003

15.0 0.951 1.051 0.975 1.025 0.990 1.010 0.995 1.005

20.0 0.936 1.069 0.967 1.034 0.987 1.013 0.993 1.007

25.0 0.920 1.087 0.959 1.042 0.984 1.017 0.992 1.008

30.0 0.905 1.105 0.951 1.051 0.980 1.020 0.990 1.010

35.0 0.891 1.123 0.944 1.060 0.977 1.023 0.988 1.012

40.0 0.876 1.141 0.936 1.068 0.974 1.027 0.987 1.013

45.0 0.863 1.159 0.929 1.077 0.971 1.030 0.985 1.015

50.0 0.849 1.178 0.921 1.086 0.968 1.033 0.984 1.017

60.0 0.823 1.215 0.907 1.103 0.962 1.040 0.981 1.020

70.0 0.799 1.252 0.893 1.120 0.956 1.046 0.978 1.023

80.0 0.776 1.288 0.880 1.136 0.950 1.052 0.975 1.026

90.0 0.755 1.324 0.868 1.152 0.945 1.058 0.972 1.029

120.0 0.701 1.426 0.835 1.198 0.930 1.075 0.964 1.037

150.0 0.657 1.521 0.807 1.239 0.917 1.090 0.958 1.044

180.0 0.618 1.618 0.781 1.281 0.905 1.105 0.951 1.051

210.0 0.577 1.734 0.752 1.330 0.891 1.122 0.944 1.060

240.0 0.525 1.904 0.713 1.403 0.872 1.147 0.933 1.071

270.0 0.452 2.210 0.653 1.532 0.840 1.191 0.916 1.092

300.0 0.345 2.899 0.548 1.825 0.777 1.288 0.880 1.136

330.0 0.192 5.211 0.350 2.859 0.617 1.621 0.780 1.282

Q1

Q2

Q5

Q10

Q1

Q2

Q5

Q10

7