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- 1st Edition - March 22, 2006
- Author: Douglas B. Miron
- Language: English
- eBook ISBN:9 7 8 - 0 - 0 8 - 0 4 9 8 1 4 - 0

As wireless devices and systems get both smaller and more ubiquitous, the demand for effective but small antennas is rapidly increasing. Small Antenna Design describes the theory… Read more

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As wireless devices and systems get both smaller and more ubiquitous, the demand for effective but small antennas is rapidly increasing. *Small Antenna Design* describes the theory behind effective small antenna design and give design techniques and examples for small antennas for different operating frequencies. Design techniques are given for the entire radio spectrum, from a very hundred kilohertz to the gigahertz range.Unlike other antenna books which are heavily mathematical and theoretical, Douglas Miron keeps mathematics to the absolute minimum required to explain design techniques. Ground planes, essential for operation of many antenna designs, are extensively discussed.

- Author's extensive experience as a practicing antenna design engineer gives book a strong "hands-on" emphasis
- Covers antenna design techniques from very low frequency (below 300 kHz) to microwave (above 1 GHz) ranges
- Special attention is given to antenna design for mobile/portable applications such as cell phones, WiFi, etc

RF/wireless design engineers and engineering managers; Electronics engineering students

Preface**Chapter 1: Introduction**1.1 What is Small?1.2 What are the Problems?1.3 Some Historical Small Antenna Types and Applications1.4 Some Present and Future Small AntennasReferences**Chapter 2: Antenna Fundamentals I**2.1 Electromagnetic Waves2.1.1 Waves in Space2.1.2 Waves in Transmission Lines2.1.3 Power in Waves2.2 Polarization2.3 The Short Dipole2.3.1 Radiation Pattern2.3.2 Circuit Behavior2.4 The Small Loop2.4.1 Circuit Behavior2.5 Directionality, Efficiency, and GainReferencesProblems**Chapter 3: Antenna Fundamentals II**3.1 Bandwidth and Quality Factor, Q3.2 Impedance Matching and System Efficiency3.2.1 Narrow-Band Matching3.2.2 Wideband Matching3.2.3 System Efficiency3.3 Reception3.3.1 Effective Height3.3.2 Effective Area3.3.3 Reception Pattern3.4 Ground Effects3.4.1 Image Theory3.4.2 Vertical Dipole Above a Perfect Ground Plane3.4.3 Horizontal Dipole Above a PEC Plane3.4.4 Grounded-Source Antennas3.4.5 Counterpoise3.4.6 Summary of Ground Effects3.5 ImprovementsReferencesProblems**Chapter 4: Introduction to Numerical Modeling of Wire Antennas**4.1 General Concepts4.2 The Mathematical Basics of the Numerical Electromagnetic Code (NEC)4.2.1 Basis Functions4.2.2 Applied Field Models4.2.3 Solving the Integral Equation4.3 Using NEC in the Command Window4.4 Modeling Guidelines4.5 NEC in a Graphical User Interface (GUI)4.6 Examples from Chapters 2 and 34.6.1 The Short Dipole4.6.2 Small Loop in Free Space4.6.3 End-Loaded Short DipoleReferencesProblems**Chapter 5: Programmed Modeling**5.0 Introduction5.1 Using Wire-List Generators in NEC5.2 Using Code to Generate a Wire ListProblems**Chapter 6: Open-Ended Antennas**6.0 Introduction6.1 Thick Monopoles6.1.1 Modeling Thick Monopoles6.2 Top Loading6.2.1 The Inverted-L6.2.2 Top-Loading with Radials6.2.3 Volume Loading6.3 Coil Loading6.4 Using Resonance6.5 SummaryReferencesProblems**Chapter 7: Loops and Other Closed-Wire Antennas**7.0 Introduction7.1 Thick Loops7.1.1 The Doughnut7.1.2 The Barrel Loop7.2 Solenoid Antennas7.3 The Contrawound Toroidal Helix Antenna (CTHA)7.4 The Folded Spherical Helix Monopole7.5 Final CommentsReferencesProblems**Chapter 8: Receiving Antennas**8.0 Introduction8.1 External Noise8.2 The Ferrite Rod Antenna8.2.1 Antenna Parameters8.2.2 Circuit Applications8.3 Active Receiving AntennasReferencesProblems**Chapter 9: Measurements**9.1 What are You Measuring?9.2 Measurements Through a Transmission Line9.2.1 If I only have an SWR meter...9.2.2 Impedance Measured Through a Transmission Line9.3 Ranges and Test Enclosures9.4 The Wheeler Cap and Variations9.4.1 Series and Parallel EffectsReferencesProblems**Appendix A: The Mathematics of Antenna Orientation**A.1 Unit-Vector and Coordinate Variable Relations.A.2 The Horizontal DipoleA.3 The Vertical LoopProblems**Appendix B: The Parallel-Ray Approximation**Problems**Appendix C: The Small Loop**Problems**Appendix D: The Proximity Effect**D.1 Current DistributionD.1.1 Problem Formulation and Reduction to a System of Linear EquationsD.1.2 Solution for the Current CoefficientsD.2 Power and ResistanceReferences**Appendix E: What Every EE Student Should Know About Mathematics by the Senior Year**E.1 What is Mathematics to an Engineer?E.2 The Process is as Important as the ResultE.3 Facts and IdiomsE.3.1 Special NumbersE.3.2 Identities and FormulasE.3.3 ApproximationsE.4 Integrals and DerivativesE.5 Radians or Degrees?E.6 Matrix Notation and OperationsE.7 Answers for Section E.3**Index**

- No. of pages: 304
- Language: English
- Edition: 1
- Published: March 22, 2006
- Imprint: Newnes
- eBook ISBN: 9780080498140

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