Librería Portfolio Librería Portfolio

Búsqueda avanzada


0 productos

en total 0,00 €

Año de edición:
129,00 €



An in-depth look at the state-of-the-art in microwave filter design, implementation, and optimization

Thoroughly revised and expanded, this second edition of the popular reference addresses the many important advances that have taken place in the field since the publication of the first edition and includes new chapters on Multiband Filters, Tunable Filters and a chapter devoted to Practical Considerations and Examples.

One of the chief constraints in the evolution of wireless communication systems is the scarcity of the available frequency spectrum, thus making frequency spectrum a primary resource to be judiciously shared and optimally utilized. This fundamental limitation, along with atmospheric conditions and interference have long been drivers of intense research and development in the fields of signal processing and filter networks, the two technologies that govern the information capacity of a given frequency spectrum. Written by distinguished experts with a combined century of industrial and academic experience in the field, Microwave Filters for Communication Systems:

Provides a coherent, accessible description of system requirements and constraints for microwave filters
Covers fundamental considerations in the theory and design of microwave filters and the use of EM techniques to analyze and optimize filter structures
Chapters on Multiband Filters and Tunable Filters address the new markets emerging for wireless communication systems and flexible satellite payloads and
A chapter devoted to real-world examples and exercises that allow readers to test and fine-tune their grasp of the material covered in various chapters, in effect it provides the roadmap to develop a software laboratory, to analyze, design, and perform system level tradeoffs including EM based tolerance and sensitivity analysis for microwave filters and multiplexers for practical applications.
Microwave Filters for Communication Systems provides students and practitioners alike with a solid grounding in the theoretical underpinnings of practical microwave filter and its physical realization using state-of-the-art EM-based techniques.

Preface xxiii

1 Radio Frequency (RF) Filter Networks forWireless Communications-The SystemPerspective 1

Part I Introduction to a Communication System, Radio Spectrum, and Information 1

1.1 Model of a Communication System 1

1.2 Radio Spectrum and its Utilization 6

1.3 Concept of Information 8

1.4 Communication Channel and Link Budgets 10

Part II Noise in a Communication Channel 15

1.5 Noise in Communication Systems 15

1.6 Modulation-Demodulation Schemes in a Communication System 32

1.7 Digital Transmission 39

Part III Impact of SystemDesign on the Requirements of Filter Networks 50

1.8 Communication Channels in a Satellite System 50

1.9 RF Filters in Cellular Systems 62

1.10 UltraWideband (UWB)Wireless Communication 66

1.11 Impact of System Requirements on RF Filter Specifications 68

1.12 Impact of Satellite and Cellular Communications on Filter Technology 72

Summary 72

References 72

Appendix 1A 74

Intermodulation Distortion Summary 74

2 Fundamentals of Circuit Theory Approximation 75

2.1 Linear Systems 75

2.2 Classification of Systems 76

2.3 Evolution of Electrical Circuits: A Historical Perspective 77

2.4 Network Equation of Linear Systems in the Time Domain 78

2.5 Network Equation of Linear Systems in the Frequency-Domain Exponential Driving Function 80

2.6 Steady-State Response of Linear Systems to Sinusoidal Excitations 83

2.7 Circuit Theory Approximation 84

Summary 85

References 86

3 Characterization of Lossless Lowpass Prototype Filter Functions 87

3.1 The Ideal Filter 87

3.2 Characterization of Polynomial Functions for Doubly Terminated Lossless Lowpass Prototype Filter Networks 88

3.3 Characteristic Polynomials for Idealized Lowpass Prototype Networks 93

3.4 Lowpass Prototype Characteristics 95

3.5 Characteristic Polynomials versus Response Shapes 96

3.6 Classical Prototype Filters 98

3.7 Unified Design Chart (UDC) Relationships 108

3.8 Lowpass Prototype Circuit Configurations 109

3.9 Effect of Dissipation 113

3.10 Asymmetric Response Filters 115

Summary 118

References 119

Appendix 3A 121

Unified Design Charts 121

4 Computer-Aided Synthesis of Characteristic Polynomials 129

4.1 Objective Function and Constraints for Symmetric Lowpass Prototype Filter Networks 129

4.2 Analytic Gradients of the Objective Function 131

4.3 Optimization Criteria for Classical Filters 134

4.4 Generation of Novel Classes of Filter Functions 136

4.5 Asymmetric Class of Filters 138

4.6 Linear Phase Filters 142

4.7 Critical Frequencies for Selected Filter Functions 143

Summary 144

References 144

Appendix 4A 145

5 Analysis of Multiport Microwave Networks 147

5.1 Matrix Representation of Two-Port Networks 147

5.2 Cascade of Two Networks 160

5.3 Multiport Networks 167

5.4 Analysis of Multiport Networks 169

Summary 174

References 175

6 Synthesis of a General Class of the Chebyshev Filter Function 177

6.1 Polynomial Forms of the Transfer and Reflection Parameters S21(S) and S11(S) for a Two-port network 177

6.2 Alternating Pole Method for the Determination of the Denominator Polynomial E(S) 186

6.3 General Polynomial SynthesisMethods for Chebyshev Filter Functions 189

6.4 Predistorted Filter Characteristics 200

6.5 Transformation for Symmetric Dual-Passband Filters 208

Summary 211

References 211

Appendix 6A 212

Complex Terminating Impedances in Multiport Networks 212

6A.1 Change of Termination Impedance 213

References 213

7 Synthesis of Network-Circuit Approach 215

7.1 Circuit Synthesis Approach 216

7.2 Lowpass Prototype Circuits for Coupled-Resonator Microwave Bandpass Filters 221

7.3 Ladder Network Synthesis 229

7.4 Synthesis Example of an Asymmetric (4-2) Filter Network 235

Summary 244

References 245

8 Synthesis of Networks: Direct Coupling Matrix SynthesisMethods 247

8.1 The Coupling Matrix 247

8.2 Direct Synthesis of the Coupling Matrix 258

8.3 Coupling Matrix Reduction 261

8.4 Synthesis of the N + 2 Coupling Matrix 268

8.5 Even- and Odd-Mode Coupling Matrix Synthesis Technique: the Folded Lattice Array 282

Summary 292

References 293

9 Reconfiguration of the Folded Coupling Matrix 295

9.1 Symmetric Realizations for Dual-Mode Filters 295

9.2 Asymmetric Realizations for Symmetric Characteristics 300

9.3 ´Pfitzenmaier´ Configurations 301

9.4 Cascaded Quartets (CQs): Two Quartets in Cascade for Degrees Eight and Above 304

9.5 Parallel-Connected Two-Port Networks 306

9.6 Cul-de-Sac Configuration 311

Summary 321

References 321

10 Synthesis and Application of Extracted Pole and Trisection Elements 323

10.1 Extracted Pole Filter Synthesis 323

10.2 Syn