Topology Optimization of Sub-Wavelength Antennas

被引：65
|
作者：
Erentok, Aycan [1 ]
Sigmund, Ole [1 ]
机构：
[1] Tech Univ Denmark, Dept Mech Engn, Sect Solid Mech, DK-2800 Lyngby, Denmark
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2011年 / 59卷 / 01期
关键词：
Antenna design; electrically small antennas; Q factor; topology optimization; PHOTONIC CRYSTAL-STRUCTURES; FRACTAL ANTENNA; PATCH ANTENNAS; DESIGN; BANDWIDTH; LIMITATIONS; COMPACT; ARRAYS;
D O I：
10.1109/TAP.2010.2090451
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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)(omega(0)) approximate to 7.74 for omega(0) = 2 pi x 350.8 MHz and it is 1.64 times larger than the theoretical lower bound value.
引用
收藏
页码：58 / 69
页数：12
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