Practical Filters and Couplers: A Collection from Applied Microwave & Wireless

Appendix

Tables of capacitor values

Table 5: Capacitor values for a Chebychev 0.5 dB ripple low-pass filter.

Linear Gain K 0

C1

C2

C3

R5 (R4=1 ?)

1.5

2.53854

0.534582

1.63847

0.5

2

2.67760

0.715644

1.16036

1

4

3.02621

1.12828

0.651206

3

6

3.26261

1.38604

0.491692

5

8

3.45099

1.58331

0.406936

7

10

3.61077

1.74652

0.352584

9

12

3.75102

1.88741

0.314065

11

14

3.87688

2.01234

0.285004

13

16

3.99160

2.12520

0.262113

15

18

4.09736

2.22855

0.243506

17

20

4.19575

2.23417

0.228012

19

Table 6: Capacitor values for a Chebyshev 0.01 dB low-pass filter.

Linear Gain K 0

C1

C2

C3

R5 (R4=1 ?)

1.5

2.89934

0.531556

1.73385

0.5

2

3.04666

0.718418

1.22086

1

4

3.41200

1.147610

0.682439

3

6

3.65808

1.41795

0.515173

5

8

3.85381

1.62577

0.426496

7

10

4.01974

1.79822

0.369679

9

12

4.16542

1.94738

0.329426

11

14

4.29619

2.07983

0.299057

13

16

4.41544

2.19961

0.275136

15

18

4.52544

2.30938

0.255688

17

20

4.62782

2.41102

0.239491

19

Table 7: Capacitor values for a Butterworth low-pass filter.

Linear Gain K 0

C1

C2

C3

R5 (R4=1 ?)

1.5

1.14072

0.440221

0.711409

0.5

2

1.23614

0.532855

0.542366

1

4

1.48709

0.738354

0.325363

3

6

1.65555

0.863996

0.249756

5

8

1.78637

0.960011

0.208316

7

10

1.89479

1.03974

0.181336

9

12

1.98817

1.10890

0.162041

11

14

2.07065

1.17053

0.147395

13

16

2.14485

1.22645

0.135808

15

18

2.21249

1.27788

0.126357

17

20

2.27481

1.32564

0.118467

19

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