Microstrip Filters for RF/Microwave Applications -- Contents -- Preface to the Second Edition -- Preface to the First Edition -- 1 Introduction -- 2 Network Analysis -- 2.1 Network Variables -- 2.2 Scattering Parameters -- 2.3 Short-Circuit Admittance Parameters -- 2.4 Open-Circuit Impedance Parameters -- 2.5 ABCD Parameters -- 2.6 Transmission-Line Networks -- 2.7 Network Connections -- 2.8 Network Parameter Conversions -- 2.9 Symmetrical Network Analysis -- 2.10 Multiport Networks -- 2.11 Equivalent and Dual Network -- 2.12 Multimode Networks -- References -- 3 Basic Concepts and Theories of Filters -- 3.1 Transfer Functions -- 3.1.1 General Definitions -- 3.1.2 Poles and Zeros on the Complex Plane -- 3.1.3 Butterworth (Maximally Flat) Response -- 3.1.4 Chebyshev Response -- 3.1.5 Elliptic Function Response -- 3.1.6 Gaussian (Maximally Flat Group-Delay) Response -- 3.1.7 All-Pass Response -- 3.2 Lowpass Prototype Filters and Elements -- 3.2.1 Butterworth Lowpass Prototype Filters -- 3.2.2 Chebyshev Lowpass Prototype Filters -- 3.2.3 Elliptic-Function Lowpass Prototype Filters -- 3.2.4 Gaussian Lowpass Prototype Filters -- 3.2.5 All-Pass Lowpass Prototype Filters -- 3.3 Frequency and Element Transformations -- 3.3.1 Lowpass Transformation -- 3.3.2 Highpass Transformation -- 3.3.3 Bandpass Transformation -- 3.3.4 Bandstop Transformation -- 3.4 Immittance Inverters -- 3.4.1 Definition of Immittance, Impedance, and Admittance Inverters -- 3.4.2 Filters with Immittance Inverters -- 3.4.3 Practical Realization of Immittance Inverters -- 3.5 Richards' Transformation and Kuroda Identities -- 3.5.1 Richards' Transformation -- 3.5.2 Kuroda Identities -- 3.5.3 Coupled-Line Equivalent Circuits -- 3.6 Dissipation and Unloaded Quality Factor -- 3.6.1 Unloaded Quality Factors of Lossy Reactive Elements.

3.6.2 Dissipation Effects on Lowpass and Highpass Filters -- 3.6.3 Dissipation Effects on Bandpass and Bandstop Filters -- References -- 4 Transmission Lines and Components -- 4.1 Microstrip Lines -- 4.1.1 Microstrip Structure -- 4.1.2 Waves In Microstrip -- 4.1.3 Quasi-TEM Approximation -- 4.1.4 Effective Dielectric Constant and Characteristic Impedance -- 4.1.5 Guided Wavelength, Propagation Constant, Phase Velocity, and Electrical Length -- 4.1.6 Synthesis of W/h -- 4.1.7 Effect of Strip Thickness -- 4.1.8 Dispersion in Microstrip -- 4.1.9 Microstrip Losses -- 4.1.10 Effect of Enclosure -- 4.1.11 Surface Waves and Higher-Order Modes -- 4.2 Coupled Lines -- 4.2.1 Even- and Odd-Mode Capacitances -- 4.2.2 Even- and Odd-Mode Characteristic Impedances and Effective Dielectric Constants -- 4.2.3 More Accurate Design Equations -- 4.3 Discontinuities and Components -- 4.3.1 Microstrip Discontinuities -- 4.3.2 Microstrip Components -- 4.3.3 Loss Considerations for Microstrip Resonators -- 4.4 Other Types of Microstrip Lines -- 4.5 Coplanar Waveguide (CPW) -- 4.6 Slotlines -- References -- 5 Lowpass and Bandpass Filters -- 5.1 Lowpass Filters -- 5.1.1 Stepped-Impedance L-C Ladder-Type Lowpass Filters -- 5.1.2 L-C Ladder-Type of Lowpass Filters Using Open-Circuited Stubs -- 5.1.3 Semilumped Lowpass Filters Having Finite-Frequency Attenuation Poles -- 5.2 Bandpass Filters -- 5.2.1 End-Coupled Half-Wavelength Resonator Filters -- 5.2.2 Parallel-Coupled Half-Wavelength Resonator Filters -- 5.2.3 Hairpin-Line Bandpass Filters -- 5.2.4 Interdigital Bandpass Filters -- 5.2.5 Combline Filters -- 5.2.6 Pseudocombline Filters -- 5.2.7 Stub Bandpass Filters -- References -- 6 Highpass and Bandstop Filters -- 6.1 Highpass Filters -- 6.1.1 Quasilumped Highpass Filters -- 6.1.2 Optimum Distributed Highpass Filters -- 6.2 Bandstop Filters.

6.2.1 Narrow-Band Bandstop Filters -- 6.2.2 Bandstop Filters with Open-Circuited Stubs -- 6.2.3 Optimum Bandstop Filters -- 6.2.4 Bandstop Filters for RF Chokes -- References -- 7 Coupled-Resonator Circuits -- 7.1 General Coupling Matrix for Coupled-Resonator Filters -- 7.1.1 Loop Equation Formulation -- 7.1.2 Node Equation Formulation -- 7.1.3 General Coupling Matrix -- 7.2 General Theory of Couplings -- 7.2.1 Synchronously Tuned Coupled-Resonator Circuits -- 7.2.2 Asynchronously Tuned Coupled-Resonator Circuits -- 7.3 General Formulation for Extracting Coupling Coefficient k -- 7.4 Formulation for Extracting External Quality Factor Qe -- 7.4.1 Singly Loaded Resonator -- 7.4.2 Doubly Loaded Resonator -- 7.5 Numerical Examples -- 7.5.1 Extracting k (Synchronous Tuning) -- 7.5.2 Extracting k (Asynchronous Tuning) -- 7.5.3 Extracting Qe -- 7.6 General Coupling Matrix Including Source and Load -- References -- 8 CAD for Low-Cost and High-Volume Production -- 8.1 Computer-Aided Design (CAD) Tools -- 8.2 Computer-Aided Analysis (CAA) -- 8.2.1 Circuit Analysis -- 8.2.2 Electromagnetic Simulation -- 8.3 Filter Synthesis by Optimization -- 8.3.1 General Description -- 8.3.2 Synthesis of a Quasielliptic-Function Filter by Optimization -- 8.3.3 Synthesis of an Asynchronously Tuned Filter by Optimization -- 8.3.4 Synthesis of a UMTS Filter by Optimization -- 8.4 CAD Examples -- 8.4.1 Example One (Chebyshev Filter) -- 8.4.2 Example Two (Cross-Coupled Filter) -- References -- 9 Advanced RF/Microwave Filters -- 9.1 Selective Filters with a Single Pair of Transmission Zeros -- 9.1.1 Filter Characteristics -- 9.1.2 Filter Synthesis -- 9.1.3 Filter Analysis -- 9.1.4 Microstrip Filter Realization -- 9.2 Cascaded Quadruplet (CQ) Filters -- 9.2.1 Microstrip CQ Filters -- 9.2.2 Design Example -- 9.3 Trisection and Cascaded Trisection (CT) Filters.

9.3.1 Characteristics of CT Filters -- 9.3.2 Trisection Filters -- 9.3.3 Microstrip Trisection Filters -- 9.3.4 Microstrip CT Filters -- 9.4 Advanced Filters with Transmission-Line Inserted Inverters -- 9.4.1 Characteristics of Transmission-Line Inserted Inverters -- 9.4.2 Filtering Characteristics with Transmission-Line Inserted -- 9.4.3 General Transmission-Line Filter -- 9.5 Linear-Phase Filters -- 9.5.1 Prototype of Linear-Phase Filter -- 9.5.2 Microstrip Linear-Phase Bandpass Filters -- 9.6 Extracted Pole Filters -- 9.6.1 Extracted Pole Synthesis Procedure -- 9.6.2 Synthesis Example -- 9.6.3 Microstrip-Extracted Pole Bandpass Filters -- 9.7 Canonical Filters -- 9.7.1 General Coupling Structure -- 9.7.2 Elliptic-Function/Selective Linear-Phase Canonical Filters -- 9.8 Multiband Filters -- 9.8.1 Filters Using Mixed Resonators -- 9.8.2 Filters Using Dual-Band Resonators -- 9.8.3 Filters Using Cross-Coupled Resonators -- References -- 10 Compact Filters and Filter Miniaturization -- 10.1 Miniature Open-Loop and Hairpin Resonator Filters -- 10.2 Slow-Wave Resonator Filters -- 10.2.1 Capacitively Loaded Transmission-Line Resonator -- 10.2.2 End-Coupled Slow-Wave Resonators Filters -- 10.2.3 Slow-Wave, Open-Loop Resonator Filters -- 10.3 Miniature Dual-Mode Resonator Filters -- 10.3.1 Microstrip Dual-Mode Resonators -- 10.3.2 Miniaturized Dual-Mode Resonator Filters -- 10.3.3 Dual-Mode Triangular-Patch Resonator Filters -- 10.3.4 Dual-Mode Open-Loop Filters -- 10.4 Lumped-Element Filters -- 10.5 Miniature Filters Using High Dielectric-Constant Substrates -- 10.6 Multilayer Filters -- 10.6.1 Aperture-Coupled Resonator Filters -- 10.6.2 Filters with Defected Ground Structures -- 10.6.3 Substrate-Integrated Waveguide Filters -- 10.6.4 LTCC and LCP Filters -- References -- 11 Superconducting Filters -- 11.1 High-Temperature Superconducting (HTS) Materials.

11.1.1 Typical HTS Materials -- 11.1.2 Complex Conductivity of Superconductors -- 11.1.3 Penetration Depth of Superconductors -- 11.1.4 Surface Impedance of Superconductors -- 11.1.5 Nonlinearity of Superconductors -- 11.1.6 Substrates for Superconductors -- 11.2 HTS Filters for Mobile Communications -- 11.2.1 HTS Filter with a Single Pair of Transmission Zeros -- 11.2.2 HTS Filter with Two Pairs of Transmission Zeros -- 11.2.3 HTS Filter with Group-Delay Equalization -- 11.3 HTS Filters for Satellite Communications -- 11.3.1 C-Band HTS Filter -- 11.3.2 X-Band HTS Filter -- 11.3.3 Ka-Band HTS Filter -- 11.4 HTS Filters for Radio Astronomy and Radar -- 11.4.1 Narrowband Miniature HTS Filter at UHF Band -- 11.4.2 Wideband HTS Filter with Strong Coupling Resonators -- 11.5 High-Power HTS Filters -- 11.6 Cryogenic Package -- References -- 12 Ultra-Wideband (UWB) Filters -- 12.1 UWB Filters with Short-Circuited Stubs -- 12.1.1 Design of Stub UWB Filters -- 12.1.2 Stub UWB Filters with Improved Upper Stopband -- 12.2 UWB-Coupled Resonator Filters -- 12.2.1 Interdigital UWB Filters with Microstrip/CPW-Coupled Resonators -- 12.2.2 Broadside-Coupled Slow-Wave Resonator UWB Filters -- 12.2.3 UWB Filters Using Coupled Stepped-Impedance Resonators -- 12.2.4 Multimode-Resonator UWB Filters -- 12.3 Quasilumped Element UWB Filters -- 12.3.1 Six-Pole Filter Design Example -- 12.3.2 Eight-Pole Filter Design Example -- 12.4 UWB Filters Using Cascaded Miniature High- And Lowpass Filters -- 12.4.1 Miniature Wideband Highpass Filter -- 12.4.2 Miniature Lowpass Filter -- 12.4.3 Implementation of UWB Bandpass Filter -- 12.5 UWB Filters with Notch Band(s) -- 12.5.1 UWB Filters with Embedded Band Notch Stubs -- 12.5.2 Notch Implementation Using Interdigital Coupled Lines -- 12.5.3 UWB Filters with Notched Bands Using Vertically Coupled Resonators -- References.

13 Tunable and Reconfigurable Filters.