Page 11 - Analog and Digital Filter Design

8 Analog and Digital Filter Design

Denormalization of State Variable Design 193
Cauer and Inverse Chebyshev Active Filters 194
Denormalizing Biquad Designs 196
Reference 197
Exercises 197

CHAPTER Bandstop Filters 199
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Passive Filters 200
Formula for Passive Bandstop Filter Denormalization 204
Passive Cauer and Inverse Chebyshev Bandstop Filters 205
Active Bandstop Filters 209
Bandstop Poles and Zeroes 209
The Twin Tee Bandstop Filter 213
Denormalization of Twin Tee Notch Filter 21 4
Bandstop Using Multiple Feedback Bandpass Section 21 4
Denormalization of Bandstop Design Using MFBP Section 216
Bandstop Using Dual Amplifier Bandpass (DABP) Section 216
Denormalization of Bandstop Design Using DABP Section 21 7
State Variable Bandstop Filters 218
Denormalization of Bandstop State Variable Filter Section 219
Cauer and Inverse Chebyshev Active Filters 21 9
Denormalization of Bandstop Biquad Filter Section 22 1
References 22 1
Exercises 22 1

CHAPTER impedance Matching Networks
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Power Splitters and Diplexer Filters 223
Power Splitters and Combiners 226
Designing a Diplexer 228
Impedance Matching Networks 23 1
Series and Parallel Circuit Relationships 232
Matching Using L, T, and PI Networks 233
Component Values for L Networks 234
Component Values for PI and T Networks 236
Bandpass Matching into a Single Reactance Load 237
Simple Networks and VSWR 238
VSWR of L Matching Network (Type A) 238
VSWR of L Matching Network (Type B) 239
VSWR of T Matching Networks 240
VSWR of PI Matching Networks 240
Exercises 24 1