1 Antenna Wave Electromagnetics
1.1 Introduction
1.2 Maxwell’s Equations
1.3 Boundary Conditions
1.4 The Wave Equation
1.5 Plane Waves in a Lossless Medium
1.6 Plane Waves in a General Lossy Medium
2 Basic Antenna Parameters
2.1 Introduction
2.2 Antenna Parameters
2.3 Basic Antenna Types
Selected Bibliography
3 Short Current Filament: Fundamental Building Block of Antennas
3.1 Introduction
3.2 Radiation from the Short Current Filament
3.3 Directivity and Gain Derivations
3.4 Radiation Resistance Derivation
3.5 Effective Aperture of a Short Current Filament
3.6 The Radar Equation
4 Half-Wave Dipole Antenna
4.1 Introduction
4.2 Monopole Antenna
4.3 Analysis of Half-Wave Dipole
4.4 Mutual Impedance of Coupled Parallel Dipoles
5 Radiation from Multiple Elements
5.1 Introduction
5.2 Radiation from an Array of Two Driven Elements
5.3 Theory of Linear Arrays
5.4 Pattern Multiplication
5.5 Gain Calculation by Radiation Pattern Approximation
5.6 Suppression of Back Radiation
5.7 Other Types of Antenna Arrays
5.8 Proposed Novel Antenna Arrays and Their Future Applications
6 Frequency-Independent Antennas: Log-Periodic Dipole Array
6.1 Introduction
6.2 Description of LPDA
6.3 Design Equations of LPDA
6.4 Design Procedure
7 Rectangular and Circular Aperture Antennas
7.1 Introduction
7.2 The H-Plane Sectoral Horn
7.3 The E-Plane Sectoral Horn
7.4 The Pyramidal Horn
7.5 The Circular Aperture
8 Reflector Antennas
8.1 Single Parabolic Reflector
8.2 Aperture Distribution Method
8.3 Gain of Reflector Antennas
8.4 Comparative Analysis of Reflector Antennas
8.5 Real-World Challenges in Reflector Antennas
8.6 Applications of Reflector Antennas
9 Sidelobe Suppression in E-Sectoral Horn Antennas
9.1 Modification of Aperture Field Distribution
9.2 Computational Approaches for Horn Antenna Design
9.3 Finite-Difference Formulation of the Wave Equation
9.4 Aperture Field Calculation of the Channel-Fitted Sectoral Horn
9.5 Radiation Pattern Calculation of the Channel-Fitted Sectoral Horn
10 Application of Ray Theory into the Design of a Short-Length, Phase- Corrected Horn Antenna
10.1 Theory and Design Refractive Medium
10.2 The Horn Construction and Design Considerations
10.3 Prediction of the Far-Field Radiation Pattern
11 Experimental Evaluation of the Antenna Far Field and Aperture Field
11.1 The Network Analyzer Facility
11.2 Measurement of the E-Plane Radiation Pattern
11.3 Experimental Verification of the Design
11.4 Optical Ray Technique Versus Finite-Difference Method
12 Novel Phase-Corrected Compact Antenna
12.1 Shortened Length Horn Design
12.2 Proposed Construction of a Compact Antenna
13 Radio Wave Propagation Through the Atmosphere
13.1 The Earth’s Atmosphere
13.2 Radio Wave Propagation: Frequency Bands and Their Suitability
13.3 Refraction of Radio Waves in the Troposphere
13.4 Radio Wave Curved Path and Surface Range Expression
13.5 4/3rd Earth Radius Diagram
13.6 Ionospheric Propagation and Dielectric Behavior
13.7 Ionospheric Wave Incidence and Skip Distance Calculations
13.8 Effect of the Earth’s Magnetic Field on Radio Wave Propagation in the Ionosphere
13.9 Derivation of the Faraday Rotation Angle
14 Advances in Antenna Technology for 5G and Satellite Communication
14.1 Introduction to 5G Technology and Its Impact on Antenna Design
14.2 Antenna Design for 5G Networks
14.3 Deployable Satellite Antennas: An Emerging Frontier
14.4 Applications of Deployable Satellite Antennas
14.5 Conclusion and Future Directions
APPENDIX 14A: MATLAB Codes for Satellite Link Budget Calculation, Beam Coverage Simulation, and Ionospheric Absorption Modeling
15 Advanced Antenna Applications and Simulations Using MATLAB
15.1 RIS for 6G Networks
15.2 Reflect Arrays and Their Simulation
15.3 Antennas for Biomedical Applications
15.4 Wave Propagation in Lossy Media
15.5 Solved Problems with MATLAB
Appendix
Derivation of the Power Transmission Coefficient at the Plane Boundary of Different Refractive Index Media
About the Author
Index