Includes bibliographical references and index.

Machine generated contents note: 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 Inverters -- 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

Note continued: 12.5.3. UWB Filters with Notched Bands Using Vertically Coupled Resonators -- References -- 13. Tunable and Reconfigurable Filters -- 13.1. Tunable Combline Filters -- 13.2. Tunable Open-Loop Filters without Via-Hole Grounding -- 13.3. Reconfigurable Dual-Mode Bandpass Filters -- 13.3.1. Reconfigurable Dual-Mode Filter with Two dc Biases -- 13.3.2. Tunable Dual-Mode Filters Using a Single dc Bias -- 13.3.3. Tunable Four-Pole Dual-Mode Filter -- 13.4. Wideband Filters with Reconfigurable Bandwidth -- 13.5. Reconfigurable UWB Filters -- 13.5.1. UWB Filter with Switchable Notch -- 13.5.2. UWB Filter with Tunable Notch -- 13.5.3. Miniature Reconfigurable UWB Filter -- 13.6. RF MEMS Reconfigurable Filters -- 13.6.1. MEMS and Micromachining -- 13.6.2. Reconfigurable Filters Using RF MEMS Switches -- 13.7. Piezoelectric Transducer Tunable Filters -- 13.8. Ferroelectric Tunable Filters -- 13.8.1. Ferroelectric Materials -- 13.8.2. Ferroelectric Varactors -- 13.8.3. Frequency Agile Filters Using Ferroelectrics -- References -- Appendix: Useful Constants and Data -- A.1. Physical Constants -- A.2. Conductivity of Metals at 25°C (298K) -- A.3. Electical Resistivity ρ in 10-8 Ωm of Metals -- A.4. Properties of Dielectric Substrates.

"The first edition of "Microstrip Filters for RF/Microwave Applications" was published in 2001. Over the years the book has been well received and is used extensively in both academia and industry by microwave researchers and engineers. From its inception as a manuscript the book is almost 8 years old. While the fundamentals of filter circuits have not changed, further innovations in filter realizations and other applications have occurred with changes in the technology and use of new fabrication processes, such as the recent advances in RF MEMS and ferroelectric films for tunable filters; the use of liquid crystal polymer (LCP) substrates for multilayer circuits, as well as the new filters for dual-band, multi-band and ultra wideband (UWB) applications. Although the microstrip filter remains as the main transmission line medium for these new developments, there has been a new trend of using combined planar transmission line structures such as co-planar waveguide (CPW) and slotted ground structures for novel physical implementations beyond the single layer in order to achieve filter miniaturization and better performance. Also, over the years, practitioners have suggested topics that should be added for completeness, or deleted in some cases, as they were not very useful in practice. In view of the above, the authors are proposing a revised version of the "Microstrip Filters for RF/Microwave Applications" text and a slightly changed book title of "Planar Filters for RF/Microwave Applications" to reflect the aforementioned trends in the revised book"-- Provided by publisher.

"The first edition of "Microstrip Filters for RF/Microwave Applications" was published in 2001. Over the years the book has been well received and is used extensively in both academia and industry by microwave researchers and engineers. From its inception as a manuscript the book is almost 8 years old. While the fundamentals of filter circuits have not changed, further innovations in filter realizations and other applications have occurred with changes in the technology and use of new fabrication processes, such as the recent advances in RF MEMS and ferroelectric films for tunable filters; the use of liquid crystal polymer (LCP) substrates for multilayer circuits, as well as the new filters for dual-band, multi-band and ultra wideband (UWB) applications"-- Provided by publisher.