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:: Cuprins

Alina-Mihaela Badescu

Antenna engineering

ISBN:978-606-25-0307-9


Preface
Chapter 1. Introduction
1.1. Types of antennas
1.2. Radiation mechanisms
1.3. Current distribution on a thin wire antenna

Chapter 2. Fundamental parameters of antennas
2.1. Radiation pattern
2.2. Radiation power density
2.3. Radiation intensity
2.4. Directivity
2.5. Antenna efficiency
2.6. Gain
2.7. Bandwidth
2.8. Polarization
2.9. Input impedance
2.10. Antenna radiation efficiency
2.11. Antenna effective area
2.12. Antenna Temperature

Chapter 3. Radiation integrals and auxiliary potential functions
3.1 The vector potential A for an electric current source J
3.2 The vector potential F for a magnetic current source M
3.3. Solution of the inhomogeneous vector potential wave equation

Chapter 4. Linear wire antennas
4.1.The infinitesimal dipole
4.2. Small dipole
4.3. Finite length dipole
4.4. Half-wavelength dipole
4.5. Linear elements near or on infinite perfect conductors
4.6. Inverted-L and Inverted-F Antennas

Chapter 5. Loop antennas
5.1. Small circular loop
5.2. Circular loop of constant current
5.3. Circular Loop of Non-uniform Current
5.4. Polygonal loop antennas

Chapter 6. Impedance matching for wire antennas
6.1. The impedance match
6.2. Balun (balanced tine to unbalanced line transformer)
6.3. Dipoles with Traps

Chapter 7. Array antennas
7.1. Two element array
7.2. N-element array
7.3. Broadside Array
7.4. Ordinary End-fire Array
7.5. Phased (scanning ) Arrays
7.6. Directivity
7.7. 3-D Characteristics of a Linear Array
7.8. Planar array
7.9. Circular array

Chapter 8. Microstrip antennas
8.1. Rectangular patch
8.2. Cavity Model for the Radiated Field of a Rectangular Patch
8.4. Circular polarization with patch antennas

Chapter 9. Aperture Antennas
9.1. Uniqueness Theorem
9.2. Field Equivalence Principle
9.3. Rectangular aperture
9.4. The Uniform Rectangular Aperture in Open Space
9.5. Circular apertures

Chapter 10. Horn antennas
10.1. The H-plane sectoral horn
10.2. The E-plane sectoral horn

Chapter 11. Reflector antennas
11.1. Principles of parabolic reflectors
11.2. Parabolic reflector

Chapter 12. Frequency independent antennas
12.1 Frequency-Independent Antennas
12.2. Equiangular spiral antenna
12.3. Log-periodic antennas

Annex I. Gradient, divergence and curl in rectangular, cylindrical and spherical coordinates