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"This book addresses the recent significant theoretical and practical developments in the electrically small antenna area. It explains work on electromagnetically coupled structures, improving bandwidth using spherical helix dipoles, the exact derivation of the Q for electrically small antennas...

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Detalles Bibliográficos
Clasificación:Libro Electrónico
Autor principal: Hansen, Robert C.
Otros Autores: Collin, Robert E.
Formato: Electrónico eBook
Idioma:Inglés
Publicado: Hoboken, N.J. : John Wiley & Sons, ©2011.
Temas:
Antennas (Electronics)
Miniature electronic equipment.
Antennes (Électronique)
Équipement électronique miniaturisé.
TECHNOLOGY & ENGINEERING > Electronics > General.
TECHNOLOGY & ENGINEERING > Telecommunications.
Miniature electronic equipment
dissertations.
Academic theses
Academic theses.
Thèses et écrits académiques.
Acceso en línea:Texto completo
Texto completo
Tabla de Contenidos:
  • Preface
  • 1. Quality Factors of ESA
  • 1.1. Introduction
  • 1.2. Chu Antenna Q
  • 1.3. Collin and Rothschild Q Analysis
  • 1.4. Thal Antenna Q
  • 1.5. Radian Sphere with Mu and/or Epsilon: TE Modes
  • 1.6. Radian Sphere with Mu and/or Epsilon: TM Modes
  • 1.7. Effects of Core Losses
  • 1.8. Q for Spheroidal Enclosures
  • References
  • 2. Bandwidth and Matching
  • 2.1. Introduction
  • 2.2. Foster's Reactance Theorem and Smith Chart
  • 2.3. Fano's Matching Limitations
  • 2.4. Matching Circuit Loss Magnification
  • 2.5. Network and Z₀ Matching
  • 2.6. Non-Foster Matching Circuits
  • 2.7. Matched and High-Z Preamp Monopoles
  • 2.7.1. A Short Monopole Matched at One Frequency
  • 2.7.2. Short Monopole with High-Impedance Amplifier
  • References
  • 3. Electrically Small Antennas: Canonical Types
  • 3.1. Introduction
  • 3.2. Dipole Basic Characteristics
  • 3.2.1. Dipole Impedance and Bandwidth
  • 3.2.2. Resistive and Reactive Loading
  • 3.2.3. Other Loading Configurations
  • 3.2.4. Short Flat Resonant Dipoles
  • 3.2.5. Spherical Helix Antennas
  • 3.2.6. Multiple Resonance Antennas
  • 3.2.6.1. Spherical Dipole; Arc Antennas
  • 3.2.6.2. Multiple Mode Antennas
  • 3.2.6.3. Q Comparisons
  • 3.2.7. Evaluation of Moment Method Codes for Electrically Small Antennas
  • 3.3. Partial Sleeve, PIFA, and Patch
  • 3.3.1. Partial Sleeve
  • 3.3.2. PIFA Designs
  • 3.3.3. Patch with Permeable Substrate
  • 3.4. Loops
  • 3.4.1. Air Core Loops, Single and Multiple Turns
  • 3.4.2. Permeable Core Loops
  • 3.4.3. Receiving Loops
  • 3.4.4. Vector Sensor
  • 3.5. Dielectric Resonator Antennas
  • References
  • 4. Clever Physics, But Bad Numbers
  • 4.1. Contrawound Toroidal Helix Antenna
  • 4.2. Transmission Line Antennas
  • 4.3. Halo, Hula Hoop, and DDRR Antennas
  • 4.4. Dielectric-Loaded Antennas
  • 4.5. Meanderline Antennas
  • 4.6. Cage Monopole
  • References
  • 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
  • 6. Superdirective Antennas
  • 6.1. History and Motivation
  • 6.2. Maximum Directivity
  • 6.2.1. Apertures
  • 6.2.2. Arrays
  • 6.2.2.1. Broadside Arrays of Fixed Spacing
  • 6.2.2.2. Endfire Arrays
  • 6.2.2.3. Minimization Codes
  • 6.2.2.4. Resonant Endfire Arrays
  • 6.3. Constrained Superdirectivity
  • 6.3.1. Dolph-Chebyshev Superdirectivity
  • 6.3.2. Superdirective Ratio Constraint
  • 6.3.3. Bandwidth or Q Constraint
  • 6.3.4. Phase or Position Adjustment
  • 6.3.5. Tolerance Constraint
  • 6.4. Bandwidth, Efficiency, and Tolerances
  • 6.4.1. Bandwidth
  • 6.4.2. Efficiency
  • 6.4.3. Tolerances
  • 6.5. Miscellaneous Superdirectivity
  • 6.6. Superdirective Antenna Summary
  • References
  • 7. Superconducting Antennas
  • 7.1. Introduction
  • 7.2. Superconductivity Concepts for Antenna Engineers
  • 7.3. Dipole, Loop, and Patch Antennas
  • 7.3.1. Loop and Dipole Antennas
  • 7.3.2. Microstrip Antennas
  • 7.3.3. Array Antennas
  • 7.3.4. Millimeter-Wave Antennas
  • 7.3.4.1. Waveguide Flat Plane Array
  • 7.3.4.2. Microstrip Planar Array
  • 7.3.5. Submillimeter Antennas
  • 7.3.6. Low-Temperature Superconducting Antennas
  • 7.4. Phasers and Delay Lines
  • 7.5. Superconducting Antenna Summary
  • References
  • Appendix A. A World History of Electrically Small Antennas
  • Appendix B. Definitions of Terms Useful to ESA
  • Appendix C. Spherical Shell of Eng Metamaterial Surrounding A Dipole Antenna
  • Appendix D. Frequency Dispersion Limits Resolution in Veselago Lens
  • Author Index
  • Subject Index.

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