Book description
Uniquely explains in detail how small antennas work and ways to improve their performance
This book addresses the recent significant theoretical and practical developments in the electrically small antenna (ESA) area.??Examining antenna designs that work as well as those that have limitations, it offers the latest information on electromagnetically coupled structures and improving bandwidth using spherical helix dipoles, the exact derivation of Q for electrically small antennas for both TE and TM modes,??a new simplified Q formula developed by the authors, and discussions of metamaterials??and computer model accuracy for ESA.
The book begins with detailed electromagnetic derivations of Chu and Thal Q formulations, formulas for Q when ?? or ?? cores are used, and effects of loss on Q. It also includes a treatise on bandwidth and matching, and Foster's reactance theorem, as well as up-to-date coverage of canonical antennas: dipoles, loops, self-resonant ESA, PIFA, and dielectric resonator antennas.
Just as this book offers the concrete facts on relevant developments in the field, it also clears up confusion regarding findings that have not turned out to be useful. Presented here are antenna ideas that are clever but with performance numbers that are poor, as well as eighteen more antenna ideas that are simply not to be believed. The book concludes with recent data on the use of self-resonant elements in superdirective antennas and new delay line data on superconducting antennas.
Each chapter features extensive references and an author list. In addition, helpful appendices cover a world history of ESA, antenna terms important to ESA, a paper on NIM shells enclosing an ESA dipole, and analytical errors associated with perfect lenses and sub-wavelength focusing. Small Antenna Handbook is ideal for practicing engineers in the telecommunications and national defense areas, as well as for upper-level undergraduate and graduate students.
Table of contents
- Cover
- Title Page
- Copyright
- Dedication
- Preface
- Chapter 1: Quality Factors of Esa
- Chapter 2: Bandwidth and Matching
- Chapter 3: Electrically Small Antennas: Canonical Types
- Chapter 4: Clever Physics, but Bad Numbers
-
Chapter 5: Pathological Antennas
- 5.1 Crossed-Field Antenna
- 5.2 Infinite Efficiency Antenna
- 5.3 E–h Antenna
- 5.4 TE–TM Antenna
- 5.5 Crossed Dipoles
- 5.6 Snyder Dipole
- 5.7 Loop-Coupled Loop
- 5.8 Multiarm Dipole
- 5.9 Complementary Pair Antenna
- 5.10 Integrated Antenna
- 5.11 Q = 0 Antenna
- 5.12 Antenna in a NIM Shell
- 5.13 Fractal Antennas
- 5.14 Antenna on A Chip
- 5.15 Random Segment Antennas
- 5.16 Multiple Multipoles
- 5.17 Switched Loop Antennas
- 5.18 Electrically Small Focal Spots
- 5.19 ESA Summary
- References
- Chapter 6: Superdirective Antennas
- Chapter 7: Superconducting Antennas
-
Appendix A: A World History of Electrically Small Antennas
- A.1 Electrically Small Antenna Chronology
- A.2 Loops
- A.3 Monopoles with Inductive Loading
- A.4 Ferrite Loopstick
- A.5 Fundamental Limitations
- A.6 Dielectric Loading
- A.7 PIFA, Transmission Line, and Patch ESA
- A.8 Electrically Small Cavity Antennas
- A.9 Active Antennas
- A.10 Resonant ESA
- A.11 Non-Foster Antennas
- A.12 Goubau Antenna
- A.13 Nut-House ESA
- A.14 Fractal Monopoles and Loops
- A.15 Double Resonance ESA
- A.16 Magnetic Loading of Loops
- A.17 Metamaterials and Antennas
- References
- Appendix B: Definitions of Terms Useful to Esa
-
Appendix C: Spherical Shell of Eng Metamaterial Surrounding a Dipole Antenna
- C.1 Introduction
- C.2 Impedance Transformation Along a Spherical Transmission Line
- C.3 Wave Solution within a Spherical Shell of ENG Material
- C.4 Dipole Antenna Source
- C.5 Antenna Radiation Resistance and Reactance
- C.6 Voltage-Driven Dipole Antenna
- C.7 Numerical Results
- C.8 Equivalent Circuit for the ENG Spherical Shell Resonator
- C.9 Conclusions
- C.10 Addendum
- References
- Appendix D: Frequency Dispersion Limits Resolution in Veselago Lens
- Author Index
- Subject Index
Product information
- Title: Small Antenna Handbook
- Author(s):
- Release date: October 2011
- Publisher(s): Wiley
- ISBN: 9780470890837
You might also like
book
Space Antenna Handbook
This book addresses a broad range of topics on antennas for space applications. First, it introduces …
book
Small Antenna Design
As wireless devices and systems get both smaller and more ubiquitous, the demand for effective but …
book
Practical Antenna Handbook 5/e, 5th Edition
THE DEFINITIVE ANTENNA REFERENCE--FULLY REVISED AND EXPANDED! Design and build your own antennas with the help …
book
Printed Antennas
Printed antennas have become integral part of next generation wireless communication and found to be commonly …