Topology Optimization of Sub-Wavelength Antennas

Aycan Erentok; Ole Sigmund

doi:10.1109/TAP.2010.2090451

Topology Optimization of Sub-Wavelength Antennas

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Abstract

We propose a topology optimization strategy for the systematic design of a three-dimensional (3D), conductor-based sub-wavelength antenna. The post-processed finite-element (FE) models of the optimized structure are shown to be self-resonant, efficient and exhibit distorted omnidirectional, elliptically polarized far-field radiation patterns. The computed approximate Q value for this antenna is Q_Z(ω₀)≈ 7.74 for ω₀=2π × 350.8 MHz and it is 1.64 times larger than the theoretical lower bound value.

Original language	English
Journal	I E E E Transactions on Antennas and Propagation
Volume	59
Issue number	1
Pages (from-to)	58-69
ISSN	0018-926X
DOIs	https://doi.org/10.1109/TAP.2010.2090451
Publication status	Published - 2011

Bibliographical note

This work was supported in part by the Danish Agency for Science, Technology and Innovation through the grant “Topology Optimization of Electromagnetic Metamaterials for Miniaturization of Wireless Communication Antennas (TopAnt)” and in part by an Eurohorcs/ESF European Young Investigator Award (EURYI, www.esf.org/euryi).

Keywords

Antenna design
Tpology optimization
Q factor
Eectrically small antennas

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10.1109/TAP.2010.2090451

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title = "Topology Optimization of Sub-Wavelength Antennas",

abstract = "We propose a topology optimization strategy for the systematic design of a three-dimensional (3D), conductor-based sub-wavelength antenna. The post-processed finite-element (FE) models of the optimized structure are shown to be self-resonant, efficient and exhibit distorted omnidirectional, elliptically polarized far-field radiation patterns. The computed approximate Q value for this antenna is QZ(ω0)≈ 7.74 for ω0=2π × 350.8 MHz and it is 1.64 times larger than the theoretical lower bound value.",

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N2 - We propose a topology optimization strategy for the systematic design of a three-dimensional (3D), conductor-based sub-wavelength antenna. The post-processed finite-element (FE) models of the optimized structure are shown to be self-resonant, efficient and exhibit distorted omnidirectional, elliptically polarized far-field radiation patterns. The computed approximate Q value for this antenna is QZ(ω0)≈ 7.74 for ω0=2π × 350.8 MHz and it is 1.64 times larger than the theoretical lower bound value.

AB - We propose a topology optimization strategy for the systematic design of a three-dimensional (3D), conductor-based sub-wavelength antenna. The post-processed finite-element (FE) models of the optimized structure are shown to be self-resonant, efficient and exhibit distorted omnidirectional, elliptically polarized far-field radiation patterns. The computed approximate Q value for this antenna is QZ(ω0)≈ 7.74 for ω0=2π × 350.8 MHz and it is 1.64 times larger than the theoretical lower bound value.

KW - Antenna design

KW - Tpology optimization

KW - Q factor

KW - Eectrically small antennas

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DO - 10.1109/TAP.2010.2090451

M3 - Journal article

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JO - I E E E Transactions on Antennas and Propagation

JF - I E E E Transactions on Antennas and Propagation

IS - 1

ER -

Topology Optimization of Sub-Wavelength Antennas

Abstract

Bibliographical note

Keywords

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