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Low-profile natural and metamaterial antennas
1 online resource (xv, 285 pages) : illustrations
Presents recent progress in low-profile natural and metamaterial antennas This book presents the full range of low-profile antennas that use novel elements and take advantage of new concepts in antenna implementation, including metamaterials. Typically formed by constructing lattices of simple elements, metamaterials possess electromagnetic properties not found in naturally occurring materials, and show great promise in a number of low-profile antenna implementations. Introductory chapters define various natural and metamaterial-based antennas and provide the fundamentals of writing computer programs based on the method of moments (MoM) and the finite-difference time-domain method (FDTDM). Chapters then discuss low-profile natural antennas classified into base station antennas, mobile card antennas, beam-forming antennas, and satellite-satellite and earth-satellite communications antennas. Final chapters look at various properties of low-profile metamaterial-based antennas, revealing the strengths and limitations of the metamaterial-based straight line antenna (metaline antenna), metamaterial-based loop antenna (metaloop), open metaloop antenna, the effects of counter dual-band CP radiation, and more. . Offers comprehensive coverage of both metamaterials and natural materials for low-profile antennas. Written by an internationally-recognized expert in the field of low-profile antennas. Depicts actual high-performance low-profile antennas for the antenna engineer. Draws on classroom-tested material in graduate courses and short courses over the past 20 years Low-Profile Natural and Metamaterial Antennas is a must-have reference book for advanced undergraduate and graduate level students as well as antenna engineers interested in low-profile antenna design theory.
Low-Profile Natural and Metamaterial Antennas: Analysis Methods and Applications; Contents; Preface; Acknowledgments; Part I: Introduction; Chapter 1: Categorization of Natural Materials and Metamaterials; 1.1 Natural and Metamaterial Antennas Discussed in This Book; 1.2 Some Antenna Examples; References; Chapter 2: Integral Equations and Method of Moments; 2.1 Basic Antenna Characteristics; 2.2 Integral Equation on a Straight-Wire Antenna; 2.3 Method of Moments; 2.4 Integral Equation for an Arbitrarily Shaped Wire Antenna in Free Space; 2.5 Point-Matching Technique.
2.6 Integral Equation N1 for an Arbitrarily Shaped Wire Antenna: Closed Kernel Expression2.7 Integral Equations N2 and N3 for an Antenna System Composed of an Arbitrarily Shaped Wire and an Arbitrarily Shaped Aperture and Their MoM Transformation; 2.8 Integral Equation N4 for an Arbitrarily Shaped Wire Antenna on a Dielectric Substrate Backed By a Conducting Plane and its MoM Transformation; 2.8.1 Step I; 2.8.2 Step II; 2.9 Integral Equation N5 for an Arbitrarily Shaped Wire Antenna on a Dielectric Half-Space and its Transformation Using a Finite-Difference Technique; References.
Chapter 3: Finite-Difference Time-Domain Methods (FDTDMs)3.1 Basis; 3.2 LOD-FDTD Method; References; Part II: Low-Profile Natural Antennas; Part II-1: Base Station Antennas; Chapter 4: Inverted-F Antennas; 4.1 Inverted-F Antenna With a Single Parasitic Inverted-L Element; 4.2 Inverted-F Antenna With a Pair of Parasitic Inverted-L Elements; References; Chapter 5: Multiloop Antennas; 5.1 Discrete Multiloop (ML) Antennas; 5.1.1 Antenna Composed of Three Discrete Loops (N = 3); 5.1.2 Antennas Composed of Five and Seven Discrete Loops (N = 5 and 7); 5.2 Modified Multiloop Antennas.
5.3 Plate-Loop (PL) AntennaReferences; Chapter 6: Fan-Shaped Antenna; 6.1 Wideband Input Impedance; 6.2 Characteristics of the Fan-Shaped Antenna; 6.3 Cross Fan-Shaped Antenna (X-Fan Antenna); 6.4 Cross Fan-Shaped Antenna Surrounded By a Wire (X-Fan-W); 6.5 Cross Fan-Shaped Antenna With Slots (X-Fan-S); References; Chapter 7: BOR-SPR Antenna; 7.1 Configuration; 7.2 Antenna Input Characteristics of Initial Patch, Patch-Slot, and PSP Antennas; 7.3 Replacement of the Patch Island With a Conducting Body of Revolution (BOR); References; Part II-2: Card Antennas for Mobile Equipment.
Chapter 8: Inverted LFL Antenna for Dual-Band Operation8.1 Configuration; 8.2 Design; References; Chapter 9: Fan-Shaped Card Antenna; 9.1 Configuration; 9.2 Antenna Characteristics; References; Chapter 10: Planar Monopole Card Antenna; 10.1 Ant-1 and Ant-2; 10.2 Ant-3 and Ant-4; References; Part II-3: Beam forming Antennas; Chapter 11: Inverted-F Antenna Above an Electromagnetic Band-Gap Reflector; 11.1 Inverted-F Array With an EBG Reflector (EBG-InvF Array); 11.2 Antenna Characteristics; References; Chapter 12: Reconfigurable Bent Two-Leaf and Four-Leaf Antennas; 12.1 BeToL Antenna.
Includes bibliographical references and index.
Low-profile Natural and Metamaterial Antennas : Analysis Methods and Applications
IEEE Press series on electromagnetic wave theory