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Antennas (Electronics)Edition | Availability |
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Book Details
Table of Contents
1. Introduction
A short history of antennas
Radio systems and antennas
Necessary mathematics
Complex numbers
Vectors and vector operation
Coordinates
Basics of electromagnetics
Electric field
Magnetic field
Maxwell's equations
Boundary conditions
Summary
References
Problems
2. Circuit Concepts and Transmission Lines
Circuit concepts
Lumped and distributed element systems
Transmission line theory
Transmission line model
Solutions and analysis
Terminated transmission line
The Smith chart and impedance matching
The Smith chart
Impedance matching
Quality factor and bandwidth
Various transmission lines
Two-wire transmission line
Coaxial cable
Microstrip line
Stripline
Co-planar waveguide (CPW)
Waveguide
Connectors
Summary
References
Problems
3. Field Concepts and Radiowaves
Wave equation and solutions
Discussion on wave solutions
Plane wave, intrinsic impedance and polarisation
Plane wave and intrinsic impedance
Polarisation
Radio wave propagation mechanisms
Reflection and transmission
Diffraction and Huygens's principle
Scattering
Radio wave propagation characteristics in media
Media classification and attenuation
Radio wave propagation models
Free space model
Two-ray model/plane earth model
Multipath models
Comparison of circuit concepts and field concepts
Skin Depth
Summary
References
Problems
4. Antenna Basics
Antennas to radio waves
Near field and far field
Antenna parameters from the field point of view
Antennas to transmission lines
Antenna parameters from the circuit point of view
Summary
References
Problems
5. Popular Antennas
Wire-type antennas
Dipoles
Monopoles and image theory
Loops and duality principle
Helical antennas
Yagi-Uda antennas
Log-periodic antennas and frequency independent antennas
Aperture-type antennas
Fourier transforms and the radiated field
Horn antennas
Reflector and lens antennas
Slot antennas and Babinet's principle
Microstrip antennas
Antenna arrays
Basic concept
Isotropic linear arrays
Pattern multiplication principle
Element mutual coupling
Some practical considerations
Transmitting and receiving antennas: reciprocity
Balun and impedance matching
Antenna polarisation
Radomes, housings and supporting structures
Summary
References
Problems
6. Computer- Aided Antenna Design and Analysis
Introduction
Computational electromagnetics for antennas
Method of moments (MoM)
Finite element method (FEM)
Finite difference time domain (FDTD) method
Transmission line modelling (TLM) method
Comparison of numerical methods
High frequency methods
Examples of computer-aided design and analysis
Wire-type antenna design and analysis
General antenna design and analysis
Summary
References
Problems
7. Antenna Manufacturing and Measurements
Antenna manufacturing
Conducting materials
Dielectric materials
New materials for antennas
Antenna measurement basics
Scattering parameters
Network analysers
Impedance, S11, VSWR, and return loss measurement
Can I measure these parameters in my office?
Effects of a small section of a transmission line or a connector
Effects of packages on antennas
Radiation pattern measurements
Far-field condition
Open-area test sites (OATS)
Anechoic chambers
Compact antenna test ranges (CATR)
Planar and cylindrical near-field chambers
Spherical near-field chambers
Gain measurements
Comparison with a standard-gain horn
Two-antenna measurement
Three-antenna measurement
Miscellaneous topics
Efficiency measurements
Reverberation chambers
Impedance de-embedding techniques
Probe array in near-field systems
Summary
References
Problems
8. Special Topics
Electrically small antennas
The Basics and impedance bandwidth
Antenna size-reduction techniques
Mobile Antennas, Antenna Diversity and Human Body Effects
Introduction
Mobile antennas
Antenna diversity
User interaction
Multiband and ultra-wideband antennas
Introduction
Multiband antennas
Wideband antennas
RFID antennas
Introduction
Near-field systems
Far-field systems
Reconfigurable antennas
Introduction
Switching and variable-component technologies
Reasonant mode switching/tuning
Feed network switching/tuning
Mechanical reconfiguration
Summary
References.
Edition Notes
Includes bibliographical references and index.
Classifications
The Physical Object
ID Numbers
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