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Frequency Independent Antennas.
Frequency Independent Antennas provides a reasonably complete coverage of frequency independent antennas from its inception until the middle of 1965. Most of the contents have not previously been published, except in scattered journal articles, and some are original. The first six chapters are writt...
| Clasificación: | Libro Electrónico |
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| Autor principal: | |
| Otros Autores: | , |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Burlington :
Elsevier Science,
1966.
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Front Cover; Frequency Independent Antennas; Copyright Page; PREFACE; Table of Contents; CHAPTER 1. ELEMENTARY PRINCIPLES; 1.1 Dipole Antennas; 1.2 Characteristic Impedance; 1.3 Antenna Measurements; 1.4 Balanced and Unbalanced Modes; REFERENCES; CHAPTER 2. BASIC FEATURES OF FREQUENCY-INDEPENDENT ANTENNAS; 2.1 Basic Principles; 2.2 General Formulas for Shapes Determined by Angles1; 2.3 A Fundamental Characteristic of the Pattern; 2.4 General Effect of Curvature; REFERENCES; CHAPTER 3. PLANE-SHEET ANTENNAS; 3.1 Dual Solutions of Maxwell's Equations; 3.2 Complementary Antennas.
- 3.3 Plane-Sheet Antennas with Many Terminals3.4 Characteristic Impedance for Flat Cones; REFERENCES; CHAPTER 4. SPIRAL ANTENNAS; 4.1 Plane Spiral Antennas; 4.2 Conical Spiral Antennas; 4.3 Current Distribution and Near Field; 4.4 Multielement Spiral Antennas; REFERENCES; CHAPTER 5. LOG-PERIODIC ANTENNAS; 5.1 Some General Aspects; 5.2 Planar-Sheet Structures; 5.3 Inclined Plane-Sheet Structures; 5.4 Wire Structures; 5.5 Current-Distribution Measurements; 5.6 Dipole Arrays; 5.7 Antennas over a Ground Plane; 5.8 Directive Arrays; REFERENCES; CHAPTER 6. THE PERIODICSTRUCTURE APPROACH.
- 6.1 Log-Periodic Structures as Gradually Expanding Periodic Structures6.2 Circuit-Theory Approach to Periodically Loaded Transmission Lines; 6.3 Conditions for Attenuation of theCurrent Distribution; 6.4 Connection with Radiation from Dipole Arrays; 6.5 Dispersion Diagrams; 6.6 Bent Zigzag Antenna; REFERENCES; CHAPTER 7. SOLUTION OF MAXWELL'S EQUATIONS FOR IDEALIZED SPIRAL STRUCTURES; 7.1 Solution of Maxwell's Equations for a Sheet of Spiral Wires; 7.2 Circularly Polarized Solutions of Maxwell's Equations; 7.3 Solution for a Sheet of Spiral Wires.
- 7.4 Input Conditions for the Idealized Spiral Sheet7.5 Radiation Patterns; 7.6 Current Distribution; REFERENCES; CHAPTER 8. SOLUTION OF MAXWELL'S EQUATIONS FOR IDEALIZED SINUSOIDAL STRUCTURES; 8.1 Solution for a Sheet of Sinusoidal Wires; 8.2 Slightly Curved Wires; 8.3 Extremely Curved Wires; 8.4 Peculiarity of the Field in the Stop Band; 8.5 Effects of Oblique Excitation; 8.6 Extrapolation of the Solution to a Log-Periodic Case; REFERENCES; AUTHOR INDEX; SUBJECT INDEX.