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ISBN 13: 9788131701843
Author: G S N Raju
Chapter 1: Mathematical Preliminaries
1.1 Fundamentals of Scalars and Vectors
1.2.1 Cartesian Coordinate System
1.2.2 Cylindrical Coordinate System
1.2.3 Spherical Coordinate System
1.5 Divergence of a Vector A
1.6 Curl of a Vector A
1.6.1 Vector Identities
1.7 Laplacian Operator
1.9 Decibel and Neper Concepts
1.10.1 Properties of Complex Numbers
1.11 Logarithmic Series and Identities
1.13 Cubic Equations
1.14 Determinants
1.14.2 Properties of Determinants
1.15.2 Types of Matrices
1.15.3 Properties of Matrices
1.18 Combinations
1.20 Exponential Series
1.23 Hyperbolic Functions
1.24 Sine, Cosine, Tan and Cot Functions
1.25.4 Bessel Function
1.26 Partial Derivative
1.27 Some Differentiation Formulae
1.28 Some Useful Integration Formulae
1.29 Radian and Steradian
1.30.2 Divergence Theorem
Points to Remember
Solved Problems
Objective Questions
Exercise Problem
Chapter 2: Maxwell’s Equations and Electromagnetic Waves
2.1 Introduction
2.2 Equation of Continuity for Time-Varying Fields
2.3 Maxwell’s Equations for Time-Varying Fields
2.3.2 Conversion of Differential Form of Maxwell’s Equations to Integral Form
2.3.6 Maxwell’s Equations for Static Fields in Free Space
2.3.7 Proof of Maxwell’s Equations
2.5 Maxwell’s Equations in Phasor Form
2.6 Influence of Medium on the Fields
2.8 Conditions at a Boundary Surface
2.8.1 Proof of Boundary Conditions on E, D, H and B
2.8.2 Boundary Conditions at a Glance
2.8.4 Boundary Conditions in Vector Form
2.9.1 Heuristic Approach
2.9.2 Maxwell’s Equations Approach
2.10 Electromagnetic Waves
2.12 Wave Equations in Free Space
2.13 Wave Equations for a Conducting Medium
2.14 Uniform Plane Wave Equation
2.15 General Solution of Uniform Plane Wave Equation
2.16 Relation Between E and H in a Uniform Plane Wave
2.17 Wave Equations in Phasor Form
2.18 Wave Propagation in a Lossless Medium
2.19 Propagation Characteristics of EM Waves in Free Space
2.20 Propagation Characteristics of EM Wave in a Conducting Medium
2.20.1 Expressions for α and β in a Conducting Medium
2.21 Conductors and Dielectrics
2.22 Wave Propagation Characteristics in Good Dielectrics
2.22.1 Intrinsic or Characteristic Impedance of a General Medium, η
2.23 Wave Propagation Characteristics in Good Conductors
2.25 Polarisation of a Wave
2.25.1 Types of Polarisations
2.26 Direction Cosines of a Vector Field
2.27.1 Total Fields After Reflection With Normal Incidence on a Perfect Conductor
2.28 Waves on Dielectric — Normal Incidence
2.30 Reflection of a Wave from a Dielectric with Oblique Incidence
2.31 Brewster Angle
2.32.1 Poynting Theorem
2.33 Complex Poynting Vector
Points to Remember
Solved Problems
Objective Questions
Exercise Problems
Chapter 3: Radiation and Antennas
3.2 Definition of Antenna
3.4 Network Theorems
3.6 Antenna Parameters
3.7 Basic Antenna Elements
3.9 Radiation Fields of Alternating Current Element (Oscillating Electric Dipole)
3.10 Radiated Power and Radiation Resistance of Current Element
3.11 Radiation, Induction and Electrostatic Fields
3.12 Herizian Dipole
3.14 Radiation from Half-wave Dipole
3.15 Radiation from Quarter-wave Monopole
3.16 Radiation Characteristics of Dipoles
Points to Remember
Solved Problems
Objective Questions
Exercise Problems
Chapter 4: Analysis of Linear Arrays
4.2 Directional Characteristics of Dipole Antennas
4.3 Radiation Pattern of Alternating Current Element
4.4 Radiation Pattern Expressions of Centre-fed Vertical Dipoles of Finite Length
4.5 Radiation Patterns of Centre-fed Vertical Dipoles
4.6 Radiation Patterns of Centre-fed Horizontal Dipoles of Finite Length
4.8 Two-Element Uniform Array
4.9 Uniform Linear Arrays
4.10 Field Strength of a Uniform Linear Array
4.11 First Side Lobe Ratio (SLR)
4.12 Broadside and End-fire Arrays
4.13 Patterns of Array of Non-isotropic Radiators
4.14 Multiplication of Patterns
4.16 Radiation Pattern Characteristics
4.17 Binomial Arrays
4.18 Effect of Earth on Vertical Patterns
4.21 Impedance Matching Techniques
4.22 Transmission Loss between Transmitting and Receiving Antennas (Friis Formula)
4.23 Antenna Temperature and Signal-to-noise Ratio
Points to Remember
Solved Problems
Objective Questions
Exercise Problems
Chapter 5: Array Synthesis
5.1 Introduction
5.3 Schelkunoff Polynomial Method
5.4 Fourier Transform Method
5.5 Line Source Design by Fourier Transform Method
5.6 Design of Linear Array by Fourier Transform Method
5.7 Linear Array Design by Woodward-Lawson Method
5.8 Dolph-Chebychev Method (Tschebyscheff Distribution)
5.9 Determination of Dolph-Chebychev Amplitude Distribution
5.11 Taylor’s Method
5.12 Laplace Transform Method
5.13 Standard Amplitude Distributions
Points to Remember
Solved Problems
Objective Questions
Exercise Problems
Chapter 6: HF, VHF and UHF Antennas
6.2 Isotropic Radiators
6.5 Resonant Antennas
6.6 Non-resonant Antennas (Travelling Wave Antennas)
6.7 LF Antennas
6.8 Antennas for HF, VHF, UHF
6.10 Broadside Array
6.11 End-fire Array
6.12 Folded Dipole
6.13 V-Antenna
6.14 Inverted V-Antenna
6.15 Rhombic Antenna
6.16 Yagi-Uda Antenna
6.17 Log-periodic Antennas
6.18 Loop Antenna
6.18.1 Radiation Resistance of Loop Antenna
6.19 Helical Antenna
6.21 Ferrite Rod Antenna
6.22 Turnstile Antenna
6.23 Discone Antenna
6.24 Notch Antenna
Points to Remember
Solved Problems
Objective Questions
Exercise Problems
Chapter 7: Microwave Antennas
7.3 Plane Reflector
7.4 Corner Reflector
7.5 Parabolic Reflector
7.6.2 Parabolic Cylinder
7.6.4 Offset Paraboloid
7.7.4 Centre-fed with Spherical Reflector
7.7.6 Cassegrain Feed
7.8.1 Fanned Beams
7.8.2 Sector Beam
7.8.3 Cosecant Beams
7.9 Horn Antenna
7.10 Corrugated Horns
7.11 Slot Antenna
7.12 Impedance of Slot Antenna
7.14 Slots in the Walls of Rectangular Waveguide
7.15 Babinet’s Principle
7.16 The Method of Moment (MOM)
7.17 Lens Antenna
7.17.1 Types of Lens Antennas
7.18 Equation of the Shape of Lens
7.19 Microstrip or Patch Antennas
Points to Remember
Solved Problems
Objective Questions
Exercise Problems
Chapter 8: Antenna Measurements
8.4 Some Methods for Accurate Measurements
8.5 Measurement Ranges
8.7 Antenna Impedance Measurement
8.8 Measurement of Antenna Pattern
8.9 Measurement of Radiation Resistance of an Antenna
8.10 Gain Measurement by Two Antenna Method
8.11 Gain Measurement by Three Antenna Method
8.12 Gain Measurement by Reflection from Ground
8.13 Directivity Measurement
8.14 Measurement of Antenna Beam Width
8.16 Measurement of Radiation Efficiency
8.17 Measurement of Antenna Aperture Efficiency
8.18 Measurement of Polarisation of Antenna
8.19 Phase Measurement
Objective Questions
Chapter 9: Wave Propagation
9.2 Factors Involved in the Propagation of Radio Waves
9.3 Ground Wave
9.4 Ground Wave Field Strength
9.6 Reflection of Radio Waves by the Surface of the Earth
9.8 Reflection Factors of Earth
9.9 Wave Tilt of the Ground Wave
9.10 Space Wave or Tropospheric Wave Propagation
9.11 Field Strength due to Space Wave
9.12.1 Effect of the Curvature of the Earth
9.12.2 Effect of Earth’s Imperfections and Roughness
9.12.4 Effect of the Height above the Earth
9.13 Atmospheric Effects in Space Wave Propagation
9.14 Duct Propagation
9.15 Radio Horizon
9.17 Fading of EM Waves in Troposphere
9.20 Characteristics of Ionosphere
9.21 Refractive Index of Ionosphere
9.22 Phase and Group Velocities
9.23 Mechanism of Ionospheric Propagation — Reflection and Refraction
9.24 Characteristic Parameters of Ionospheric Propagation
9.25 Sky Wave Field Strength
9.26 Fading and Diversity Techniques
9.27 Faraday Rotation
9.28 Ionospheric Abnormalities
9.32 Whistlers
9.34 Effect of Earth’s Magnetic Field
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Tags: G S N Raju, Antennas, Propagation
