Design Trade-Offs of Compact Circular Polarization Antennas by Means of Multi-Objective Optimization

Bekasiewicz，Adrian1; Koziel，Slawomir1; Cheng，Qingsha S.2; Fan，Xiaolin2,3

10.1109/COMPEM.2018.8496732

2018-10-17

978-1-5386-1242-2

2018 IEEE International Conference on Computational Electromagnetics, ICCEM 2018

1-3

26-28 March 2018

Chengdu, China

Institute of Electrical and Electronics Engineers Inc.

Design of circular polarization (CP) antennas requires accounting for several and normally conflicting objectives that include ensuring sufficient impedance bandwidth and low level of axial ratio (AR). For an increasing number of modern applications, reduction of the antenna size becomes of importance. Design closure of CP antennas is often carried out having in mind electrical and field properties, whereas miniaturization is a byproduct of introduced topological modifications. In this paper, we apply multi-objective optimization as a tool for generating the best possible design trade-offs for a compact CP antenna with respect to its reflection response, axial ratio and the size. A particular example of a planar microstrip structure with elliptical ground plane slots and dual feed line stubs is considered. Surrogate-assisted optimization framework allows for finding a set of Pareto optimal designs at a low computational cost, giving the designer an insight into the capabilities of the antenna, particularly in terms of relationships between achievable miniaturization ratio as well as the axial ratio and reflection bandwidths. For the considered example, it is possible to reduce the antenna size by over 11 percent while maintaining required AR bandwidth, or reduce maximum in-band AR to 1.3 dB while ensuring required impedance bandwidth.

axial ratio Circular polarization antennas compact antennas design optimization design trade-of Is EM-driven design multi-objective optimization

其他

英语

EI

Icelandic Centre for Research[174114051]

20184806159068

Antenna feeders ; Antenna grounds ; Bandwidth ; Circular polarization ; Commerce ; Computational electromagnetics ; Economic and social effects ; Electric impedance ; Miniature instruments ; Pareto principle

Electricity and Magnetism:701 ; Electricity: Basic Concepts and Phenomena:701.1 ; Information Theory and Signal Processing:716.1 ; Optimization Techniques:921.5 ; Social Sciences:971

2-s2.0-85057271614

Scopus

1.Reykjavik University, School of Science and Engineering, ,Reykjavik,Iceland
2.Southern University of Science and Technology, Department of Electrical and Electronic Engineering, ,Shenzhen,China
3.Faculty of Engineering and Applied Science, University of Regina, ,Regina,Canada

Bekasiewicz，Adrian,Koziel，Slawomir,Cheng，Qingsha S.,et al. Design Trade-Offs of Compact Circular Polarization Antennas by Means of Multi-Objective Optimization[C]:Institute of Electrical and Electronics Engineers Inc.,2018:1-3.