Electromagnetics and Antenna Optimization using Taguchi's Method: s Method.part1.rar

Electromagnetics and Antenna Optimization Using Taguchi’s MethodSynthesis Lectures on Computational Electromagnetics2007, 94 pages, (doi:10.2200/S00083ED1V01Y200710CEM018)
Wei-Chung Weng‌ Kaohsiung Technical School, Kaohsiung City, Taiwan
Fan Yang‌ University of Mississippi
Atef Elsherbeni‌ University of Mississippi


Abstract
This book presents a new global optimization technique using Taguchi’s method and its applications in electromagnetics and antenna engineering. Compared with traditional optimization techniques, Taguchi’s optimization method is easy to implement and very efficient in reaching optimum solutions.
Taguchi’s optimization method is developed based on the orthogonal array (OA) concept, which offers a systematic and efficient way to select design parameters. The book illustrates the basic implementation procedure of Taguchi’s optimization method and discusses various advanced techniques for performance improvement. In addition, the integration of Taguchi’s optimization method with commercial electromagnetics software is introduced in the book.
The proposed optimization method is used in various linear antenna arrays, microstrip filters, and ultra-wideband antenna designs. Successful examples include linear antenna array with a null controlled pattern, linear antenna array with a sector beam, linear antenna array with reduced side lobe levels, microstrip band stop filter, microstrip band pass filter, coplanar waveguide band stop filter, coplanar ultra-wide band antenna, and ultra-wide band antenna with band notch feature.
Satisfactory results obtained from the design process demonstrate the validity and efficiency of the proposed Taguchi’s optimization method.
Contents: Introduction / Orthagonal Arrays / Taguchi's Optimization Method / Linear Antenna Array Designs / Planar Filter Designs / Ultra-wide Band (UWB) Antenna Designs / OA-PSO Method / Conclusions

Contents

1. Introduction ........................................................................................................1
1.1 Background ......................................................................................................... 1
1.2 Taguchi’s Method ................................................................................................ 3
1.2.1 Objective ................................................................................................. 3
1.2.2 Research Work ........................................................................................ 3
2. Orthogonal Arrays ..............................................................................................7
2.1 Definition of Orthogonal Array .......................................................................... 7
2.2 Important Properties ........................................................................................... 9
2.3 Existence and Construction of Orthogonal Arrays ........................................... 10
3. Taguchi’s Optimization Method ........................................................................ 15
3.1 Implementation Procedure ................................................................................ 15
3.1.1 Problem Initialization ............................................................................ 15
3.1.2 Design Input Parameters Using OA ...................................................... 17
3.1.3 Conduct Experiments and Build a Response Table ............................... 17
3.1.4 Identify Optimal Level Values and Conduct
Confirmation Experiment ..................................................................... 20
3.1.5 Reduce the Optimization Range ........................................................... 20
3.1.6 Check the Termination Criteria............................................................. 21
3.2 Optimization Examples ..................................................................................... 22
3.2.1 Example 1 .............................................................................................. 22
3.2.2 Example 2............................................................................................... 22
3.3 Improved Taguchi’s Method............................................................................... 25
3.3.1 Increase Initial Level Difference............................................................. 25
3.3.2 Boundary Treatments............................................................................. 26
3.3.3 Using a Gaussian Reduce Function........................................................ 27
3.4 Taguchi’s Method With Five-Level OA............................................................ 29
3.5 Random Taguchi’s Method................................................................................ 30
vi e lectroma gnetics an d antenna optimi zation
4. L inear Antenna Array Designs............................................................................ 33
4.1 Introduction of Linear Antenna Arrays.............................................................. 33
4.2 Array With Null Controlled Pattern.................................................................. 33
4.3 Array With Sector Beam Pattern....................................................................... 37
4.4 Array With Suppressed Side Lobe Levels.......................................................... 40
5. P lanar Filter Designs......................................................................................... 45
5.1 Introduction of Planar Filters............................................................................. 45
5.2 Integration of Taguchi’s Method With IE3D.................................................... 45
5.3 Microstrip Band Stop Filter............................................................................... 48
5.4 Coplanar Waveguide Band Stop Filter............................................................... 51
5.5 Microstrip Band Pass Filter................................................................................ 55
6. Ultra-Wide Band (UWB) Antenna Designs........................................................ 61
6.1 Introduction of UWB Antenna.......................................................................... 61
6.2 A UWB Antenna Design................................................................................... 62
6.3 A UWB Antenna With Band-Notch Property.................................................. 67
7. OA-PSO Method.............................................................................................. 75
7.1 Classical PSO Method....................................................................................... 75
7.2 OA-PSO Method and Performance Comparison.............................................. 77
8. Conclusions....................................................................................................... 81
8.1 Summary............................................................................................................ 81
8.1.1 Linear Antenna Arrays........................................................................... 81
8.1.2 Planar Filter Design............................................................................... 82
8.1.3 UWB Antenna Design........................................................................... 82
8.2 Future Work....................................................................................................... 83
8.2.1 Algorithm............................................................................................... 83
8.2.2 Applications............................................................................................ 83
Bibliography .............................................................................................................. 85
Author Biography....................................................................................................... 91

Electromagnetics and Antenna Optimization using Taguchi's Method.part4
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Electromagnetics and Antenna Optimization using Taguchi's Method.part2
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Electromagnetics and Antenna Optimization using Taguchi's Method.part1
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回复 2# drjiachen


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