Band-Pass

2-Pole Pair

Appendix A

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e-mail: sales@freqdev.com

Web Address: http://www.freqdev.com

Q = 1

Q = 2

Q = 5

Q = 10

(+)

(-)

(+)

(-)

(+)

(-)

(+)

(-)

Phase

Mag

f /fO

f /fO

f /fO

f /fO

f /fO

f /fO

f /fO

f /fO

1.0

0.994 1.006

0.997 1.003

0.999 1.001 0.999 1.001

2.5

0.985 1.016

0.992 1.008

0.997 1.003 0.998 1.002

5.0

0.970 1.031

0.985 1.016

0.994 1.006 0.997 1.003

10.0

0.940 1.063

0.970 1.031

0.988 1.012 0.994 1.006

15.0

0.913 1.096

0.955 1.047

0.982 1.018 0.991 1.009

20.0

0.886 1.128

0.941 1.062

0.976 1.025 0.988 1.012

25.0

0.861 1.161

0.928 1.078

0.970 1.030 0.985 1.015

30.0

0.838 1.194

0.915 1.093

0.965 1.036 0.982 1.018

35.0

0.815 1.227

0.902 1.108

0.960 1.042 0.980 1.021

40.0

0.794 1.259

0.891 1.123

0.955 1.048 0.977 1.024

45.0

0.774 1.292

0.879 1.138

0.950 1.053 0.974 1.026

50.0

0.755 1.324

0.868 1.152

0.945 1.059 0.972 1.029

60.0

0.719 1.391

0.846 1.182

0.935 1.069 0.967 1.034

70.0

0.685 1.460

0.825 1.212

0.925 1.081 0.962 1.040

80.0

0.652 1.535

0.803 1.245

0.916 1.092 0.957 1.045

90.0

0.618 1.618

0.781 1.281

0.905 1.105 0.951 1.051

105.0

0.564 1.772

0.743 1.346

0.887 1.128 0.941 1.062

120.0

0.502 1.991

0.695 1.439

0.862 1.160 0.928 1.077

135.0

0.424 2.356

0.628 1.594

0.825 1.212 0.908 1.101

150.0

0.320 3.126

0.520 1.923

0.758 1.319 0.869 1.150

165.0

0.177 5.639

0.327 3.058

0.593 1.686 0.764 1.310

180.0

0

inf

0

inf

0

inf

0

inf

Phase Response Curves

Normalized Frequency (f/fo)

1.0

0.9

0.8

0.7

0.6

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)

-180

-90

0

90

180

Q1

Q2

Q5

Q10

Q1

Q2

Q5

Q10

Normalized Theoretical Phase Data

-180

-90

0

90

180

40