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