Screen LibraryBroadband metamaterials in electromagnetics : technology and applications /
"The rapid development of technology based on metamaterials coupled with the recent introduction of the transformation optics technique provides an unprecedented ability for device designers to manipulate and control the behavior of electromagnetic wave phenomena. Many of the early metamaterial...
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| Group Author: | |
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| Published: |
Pan Stanford Publishing,
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| Publisher Address: | Singapore : |
| Publication Dates: | [2017] |
| Literature type: | Book |
| Language: | English |
| Subjects: | |
| Summary: |
"The rapid development of technology based on metamaterials coupled with the recent introduction of the transformation optics technique provides an unprecedented ability for device designers to manipulate and control the behavior of electromagnetic wave phenomena. Many of the early metamaterial designs, such as negative index materials and electromagnetic bandgap surfaces, were limited to operation only over a very narrow bandwidth. However, recent groundbreaking work reported by several international research groups on the development of broadband metamaterials has opened up the doors to an |
| Carrier Form: | xv, 381 pages : illustrations ; 24 cm |
| Bibliography: | Includes bibliographical references and index. |
| ISBN: |
9789814745680 9814745685 |
| Index Number: | TK145 |
| CLC: | TM3 |
| Call Number: | TM3/B863 |
| Contents: |
Halftitle; Title; Copyright; Table of Contents; Preface; 1. Broadband Anisotropic Metamaterials for Antenna Applications; 1.1 Introduction; 1.2 MM Coatings for Monopole Bandwidth Extension; 1.2.1 Monopole with Anisotropic Material Coating; 1.2.2 Unit Cell Design and Full-wave Simulations; 1.2.3 Experimental Results; 1.2.4 C-Band Design; 1.3 Anisotropic MM Lenses for Directive Radiation; 1.3.1 Low-Profile AZIM Coating for Slot Antenna; 1.3.1.1 Dispersion of grounded AZIM slab; 1.3.1.2 Infinite TMz radiating source with realistic AZIM coating. 1.3.1.3 High-gain SIW-fed slot antenna with realistic AZIM coating1.3.2 Anisotropic MM Lens for Crossed-Dipole Antenna; 1.3.2.1 Configuration and unit cell design; 1.3.2.2 Numerical and experimental results; 1.3.3 Anisotropic MM Multibeam Antenna Lens; 1.3.3.1 Two-dimensional/three-dimensional AZIM lens concept and numerical results; 1.3.3.2 Realistic AZIM lens for monopole antenna; 1.4 AZIM Lens for Reconfigurable Beam Steering; 1.5 Conclusion; 2. Broadband Low-loss Metamaterial-Enabled Horn Antennas; 2.1 Introduction; 2.1.1 Horn Antennas as Reflector Feeds; 2.1.2 Soft and Hard Horn Antenna 2.1.3 Metamaterial Horn Antennas2.2 Design and Modeling of Metamaterial Implementations for Soft and Hard Surfaces; 2.2.1 Plane Wave Model of Metasurfaces; 2.2.2 Equivalent Homogeneous Metamaterial Model; 2.2.3 Design Goals and Optimization Methods; 2.3 Metasurface Design Examples; 2.3.1 Canonical Examples; 2.3.2 Printed-Patch Balanced Hybrid Metasurface; 2.3.3 Wire-Grid Metasurface; 2.4 Octave-Bandwidth Single-Polarization Horn Antenna with Negligible Loss; 2.4.1 Application Background; 2.4.2 Modeling and Simulation; 2.4.3 Prototype and Measurements. 2.5 Dual-Polarization Ku-Band Metamaterial Horn2.5.1 Application Background; 2.5.2 Modeling and Simulation; 2.5.3 Prototype and Measurements; 2.6 Improved-Performance Horn Enabled by Inhomogeneous Metasurfaces; 2.6.1 Motivation and Rationale; 2.6.2 Effects of Parameter Variations on Metasurface Characteristics; 2.6.3 Metasurfaces in Cylindrical Waveguides; 2.6.4 Comparison of Metahorns with Homogeneous and Inhomogeneous Metasurfaces; 2.7 Summary and Conclusions; 3. Realization of Slow Wave Phenomena Using Coupled Transmission Lines and Their Application to Antennas and Vacuum Electronics. 3.1 Introduction3.2 Slow Wave Theory; 3.2.1 Periodic Structures; 3.2.2 Second-Order Dispersion; 3.2.3 Coupled Transmission Line Analysis; 3.2.3.1 Derivation; 3.2.3.2 Coupling of modes; 3.2.4 Higher-Order Dispersion Engineering; 3.2.4.1 Graphical analysis; 3.2.4.2 Realizations of higher-order dispersion; 3.3 Applications of Slow Waves; 3.3.1 Traveling Wave Tubes; 3.3.2 Antenna Miniaturization, Directivity, and Bandwidth Improvement; 3.3.3 Leaky-Wave Antenna; 4. Design Synthesis of Multiband and Broadband Gap Electromagnetic Metasurfaces; 4.1 Introduction. |