Book description
Tunable Materials with Applications in Antennas and Microwaves is a stimulating topic in these modern times.
With the explosion of the new generation of the wireless world, greater emphasis than ever before is being placed on the analysis and applications of modern materials. This book describes the characteristics of Ferrites and Ferroelectrics and introduces the reader to Multiferroics.
 Represents, in a simple manner, the solid state physics and explains the permittivity and permeability tensor characteristics for the tunable materials of infinite and finite dimensions.
 Gives the applications of tunable materials in resonators, filters, microstrips, striplines, antennas, phase shifters, capacitors, varactors, and frequency selective surfaces.
 Describes in detail the mathematical analysis for spin and magnetostatic waves for infinite medium, thin slab films, and finite circular discs. The analysis contains original work, which the reader may extend in the future.
 Provides multiferroics, which are ferrite and ferroelectric composites. Multiferroics are very promising tunable materials which are believed will offer many applications in the near future.
 Contains the planar transmission lines with analytic formulas for multilayer microstrips, transmission lines, and waveguides with isotropic as well as anisotropic dielectric and magnetic materials. Also, gives the formulas to analyze the layered category of transmission lines with multiferroics.
This book is intended for antenna and microwave engineers as well as for graduate students of Materials Science and Engineering, Electrical & Computer Engineering, and Physics Departments.
Table of contents
 List of Figures (1/2)
 List of Figures (2/2)
 List of Tables
 Preface
 Acknowledgments
 Ferrites and Ferroelectrics

Tunable Materials–Characteristics and Constitutive Parameters
 Introduction
 Microwave Ferrites
 Ferrimagnetics: Ferrite Materials and Magnetic Garnets
 Ferrite Films
 Ferrite Films and MMIC Combatibility
 Ferrite Constitutive Relations
 Dielectric Properties of Ferrites
 Ferroelctric Properties
 Ferroelectricity
 Hysteresis Loop
 Ferroelectric Materials—Perovskites
 The Perovskite Crystal Structure
 Ferroelectricity as a Result of Crystallic Asymmetry
 Paraelectric Phase
 Quantum or Incipient Ferroelectric
 Perovskite Superlattices
 Conventional Ferroelectrics—Temperature and DC Bias Dependence
 Superconductor Perovskites
 Ferroelectric Layers and Electrode Interfaces
 Hysteresis Loop of Ferroelectrics
 Theory of the Ferroelectric Dielectric Response
 Ferroelectric Tunability
 Ferroelectric Microwave Losses
 References

Finite Ferrite Samples
 Demagnitization Factors and Ferrite Samples
 Spin Waves and Magnetostatic Waves
 Low– vs. High–Order Spin Waves
 Magnetostatic Modes
 Spin–Wave Spectrum Manifold
 Exchange–Field Interaction
 Anisotropy Energy
 Magnetization Equation for Spin Waves
 Spin Waves as Magnons
 Spin Waves in an Infinite Medium
 Spin Waves Including Dipolar Interactions
 Spin–Waves Accounting for Dipole–Dipole Interaction
 Spin–Wave Manifold
 Preliminaries to Spin–Wave Excitation
 Spin Waves in a Finite Sample
 Magnetostatic Waves
 Susceptibility and Characteristic Equation–Uniform Mode
 The Magnetostatic Equation of a Uniformly Biased Specimen
 Magnetostatic Modes in an Infinite Medium
 Magnetostatic Manifold
 Magnetostatic Modes of an Infinitely Extending Thin Slab Film
 Longitudinally Magnetized Infinitely Extending Thin Slabs (1/2)
 Longitudinally Magnetized Infinitely Extending Thin Slabs (2/2)

Magnetostatic Surface Waves (1+X)> 0
 MSSW Propagating in the y–Direction (k_z=0)
 Non–Reciprocal Surface–Wave Modes
 Polarization of Magnetostatic Waves
 Polarization of MSSW Modes
 Graphic Representation of Magnetostatic Waves
 Magnetostatic Modes in an Infinite Circular DiskPerpendicular Magnetization
 Finite Ferrite Disks
 Finite Cylindrically Symmetric Samples–Rods
 Faraday Rotation–Circular Polarization (CP)

Magnetostatic Waves on Multilayer and Grounded Structures
 Grounded Ferrite Slab
 Magnetostatic Volume Modes: (1+X) < 0
 Surface Wave Modes: (1+X) > 0
 Surface Waves Propagating Only in the –Direction (k_z=0)
 Grounded Dielectric–Ferrite Layers
 Magnetostatic Volume Modes (1+X) < 0
 Volume Modes Propagating Only in the z–Direction (k_y=0)
 Magnetostatic Surface Modes (1+X)>0
 Surface Waves Propagating Only in the –Direction (k_z=0)
 Magnetostatic Modes of a Finite Width Slab
 Surface Modes of Finite Width Slab (w/2 z w/2)
 Volume Modes of a Slab Finite in the z–Dimension
 Volume Modes of a Slab Finite in y–Dimension
 Transversely Biased Grounded Dielectric–Ferrite Layers
 Shielded Dielectric–Ferrite Layers
 Longitudinally Magnetized Shielded Dielectric Ferrite Layers
 Magnetized and Spin Waves in Ferrite Slab with Losses
 Magnetostatic Wave Spectrum in the Presence of Losses
 References
 Multiferroics: Ferrite–Ferroelectric Composites

Planar Transmission Lines
 Introduction
 Multilayer Microstrip Lines
 Three–Layers Microstrip Line
 Multiple Dielectric Layer Microstrip Line
 Frequency Dispersion of Multilayer Microstrip Lines
 Equivalent Single–Layer Microstrip (SLR)
 Characteristic Impedance vs. Frequency, Z_0(f)
 Dielectric Losses
 Coplanar Transmission Lines
 Multilayer Coplanar Waveguide (CPW)
 Symmetric Multilayer Coplanar Waveguides (w_1 = w_2 = w)
 Multilayer CPW with Finite Ground Planes
 Multilayer Coplanar Strips
 Microstrip Line on a Single Magnetic Substrate
 Microstrip on a Single Anisotropic Dielectric Substrate
 Microstrip Printed on a Weakly Magnetized Ferrite–Dielectric Substrate
 Microstrip Lines on Gyrotropic Substrate
 TEM Duality Principle in Gyrotropic Media
 References
 Authors' Biographies
 Blank Page (1/3)
 Blank Page (2/3)
 Blank Page (3/3)
Product information
 Title: Tunable Materials with Applications in Antennas and Microwaves
 Author(s):
 Release date: September 2019
 Publisher(s): Morgan & Claypool Publishers
 ISBN: 9781681736327
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