Page 122 - Analog and Digital Filter Design
P. 122

119
                                                                  Poles and Zeroes




                                                                                  Pole
                        Stopband   Filter   Attenuation             Pole Real   Imaginary
                       Frequency   Order       (dB)        Zero       Part        Part

                          1.1        9          58       2.302010   0.341 7308   0.5448127
                                                         1.392020   0.1731486   0.8472668
                                                         1.170604   0.0695 I29   0,9697934
                                                         1.106502   0.0178438   1.0105670
                                                                    0.4482750
                          1.2        7          50       2.228609   0.371 1950   0.627191  I
                                                         1.393320   0.1614481   0.928552 1
                                                         1.2 I6500   0.0410804   1.0244980
                                                                    0.5197208
                          1.3        7          59       2.533631   0.3667336   0.5862 I46
                                                         1.540439   0.1790991   0.91001  19
                                                         1.320986   0.0493328   1.0282 150
                                                                    0.48 18349
                          1.4                   52       4.6 18428   0.5006298   0.3655174
                                                         1.825298   0.2688599   0.8608322
                                                         1.434274   0.0742502   1.0425360
                          1.5                   57       2.33 1876   0.4170394   0.7757674
                                                         1.557406   0.1 I41299   1.066 1520
                                                                    0.6497566
                          2.0        5          58       3.250805   0.42909 17   0.72 13293
                                                         2.089247   0. I389126   1.0735670
                                                                    0.5909335

                      Table 3.27
                      Cauer Pole and Zero Locations (0.ldB Ripple and 50dB Stopband Attenuation)
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