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Compact Dual-Band Dual-Sense Circularly Polarized Fragmental Patch Antenna Optimized by Improved Simulated-Annealing-Based Algorithm

Authors :
Tianyu Shu
Bowen Feng
Long Zhang
Chuyue Chen
Hui Chen
Yaling Chen
Qinyu Zhang
Source :
IEEE Open Journal of Antennas and Propagation, Vol 5, Iss 6, Pp 1847-1853 (2024)
Publication Year :
2024
Publisher :
IEEE, 2024.

Abstract

This study presents a compact dual-band dual-sense circularly polarized (CP) fragmental patch antenna that advanced by an improved simulated-annealing-based optimization algorithm. This design replaces truncated corners of traditional truncated patch antennas with fragmental structures, generating dual-band dual-CP radiation with a small frequency ratio and a high front-to-back ratio. The proposed optimized framework tackles the multi-objective optimization problem through hierarchical optimization to achieve an optimal balance among various performance metrics. Furthermore, the simulated annealing is improved using a matrix-based dynamic step-size perturbation mechanism and a nested cyclic process, averting premature convergence and ensuring multifaceted objective enhancement. The measurement results reveal that the proposed antenna can operate with a small frequency ratio of 1.07, providing left-hand CP radiation from 4.99 to 5.02 GHz and right-hand CP radiation 5.34 to 5.41 GHz, respectively. This compact cost-efficient design demonstrates potential for diverse antenna applications.

Details

Language :
English
ISSN :
26376431
Volume :
5
Issue :
6
Database :
Directory of Open Access Journals
Journal :
IEEE Open Journal of Antennas and Propagation
Publication Type :
Academic Journal
Accession number :
edsdoj.fbd2f6ad570b416993b30cb6f948490d
Document Type :
article
Full Text :
https://doi.org/10.1109/OJAP.2024.3463794