Orthogonal Methods for Array Synthesis Theory and the ORAMA Computer Tool

by Sahalos, John

• ISBN13: 9780470017418
• ISBN10: 0470017414
• Edition: 1st
• Format: Hardcover
• Copyright: 2006-04-14
• Publisher: WILEY

Summary

With the explosion of the wireless world, greater emphasis than ever before is placed on the effective design of antennas. Orthogonal Methods for Array Synthesis outlines several procedures of orthogonal methods suitable for antenna array synthesis. The book provides the systematic analysis of mathematical and numerical techniques related to orthogonal methods through the exploitation of the ORAMA MS Windows-compatible computer tool patented by Professor Sahalos and his team. This resource has already been warmly received by industry and academia alike for its role in the synthesis of linear antenna arrays. The theory-based book, which includes rapid effective solutions to design problems for communications applications and broadcasting, is amply illustrated with real-world examples and case studies.

Author Biography

<b>Professor John N. Sahalos</b> is a professional engineer and consultant to industry and Head of the Radio Communications&#160; Laboratory, Department of Physics, University of Thessaloniki, Greece. He is a member of the New York Academy of Science and the Technical Chamber of Greece. In 2002, he was appointed to serve a five-year term on the Board of Directors of the Hellenic Telecommunications Organization S.A. His research interests are in the areas of applied electromagnetics, antennas, high frequency methods, communications, microwaves and biomedical engineering.

Table of Contents

Preface.

1 Antennas and Antenna Arrays.

1.1 Introduction.

1.2 Antenna Array Factor.

1.3 Elements and Array Types.

1.4 Antenna Parameters and Indices.

1.5 Antenna Input Impedance.

1.6 Antenna Arrays Classification.

1.7 Array Factor Classification.

References.

2 Arrays: Linear, Planar, 3D and Conformal.

2.1 Introduction.

2.2 Linear Arrays.

2.3 Uniform Linear Arrays.

2.4 Chebyshev Linear Arrays.

2.5 Linear Arrays from Sampling or Root Matching of Line Sources.

2.6 Planar Arrays.

2.7 3-D Arrays.

2.8 Conformal Arrays.

References.

3 Pattern Synthesis for Arrays.

3.1 Introduction.

3.2 Uniform Linear Array Synthesis.

3.3 Chebyshev Array Synthesis.

3.4 Synthesis by Sampling or by Root Matching.

3.5 Synthesis by Fourier Transform.

3.6 The Woodward - Lawson (WL) Method.

3.7 Array Synthesis as an Optimization Problem.

3.8 Synthesis by Convolution of Linear, Planar and 3-D Arrays.

References.

4 The Orthogonal Methods.

4.1 Introduction.

4.2 Synthesis of Non-uniformly Spaced Linear Arrays: The Matrix Inversion Method.

4.3 Synthesis of Non-uniformly Spaced Linear Arrays: The Orthogonal Method.

4.5 Quantized Excitation and Geometry Synthesis of a Linear Array: The Orthogonal Perturbation Method.

4.6 Synthesis of Non-uniformly Spaced Planar Arrays: The Orthogonal Method.

4.7 Synthesis of Non-uniformly Spaced 3-D Arrays: The Orthogonal Method.

4.8 Synthesis of Non-uniformly Spaced 3-D Arrays with Arbitrarily Oriented Dipoles: The Non-parallel Orthogonal Method.

4.9 Synthesis of Arrays of Wire Antennas: The MoM Orthogonal Method.

4.10 Synthesis of General Antenna Arrays: The Orthogonal Compensation Method.

4.11 Synthesis of Conformal Arrays: The Conformal Orthogonal Method.

References.

5 The Orama Computer Tool (George S. Miaris and John N. Sahalos).

5.1 Introduction.

5.2 Description of the ORAMA Program.

5.3 Element Types.

5.4 Design Examples.

5.5 Conclusion.

References.

Index.