Trade-Off Between Optimal Efficiency and Envelope Correlation Coefficient of MIMO Antenna Clusters

被引:1
作者
Neuman, Vojtech [1 ]
Capek, Miloslav [1 ]
Jelinek, Lukas [1 ]
Lehtovuori, Anu [2 ]
Viikari, Ville [2 ]
机构
[1] Czech Tech Univ, Dept Electromagnet Field, Prague 16636, Czech Republic
[2] Aalto Univ, Dept Elect & Nanoengn, Espoo 02150, Finland
关键词
Manganese; MIMO communication; Antenna feeds; Antennas; Optimization; Correlation; Antenna arrays; convex optimization; electromagnetic theory; feeding optimization; multiple-input-multiple-output (MIMO); mutual coupling; MUTUAL COUPLING REDUCTION; COMPACT; DESIGN; SYSTEM; ARRAY; DIVERSITY; NETWORKS; IMPACT; GAIN; 6G;
D O I
10.1109/TAP.2023.3342939
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
The presented article proposes a theory for the optimization of multiple-input-multiple-output antenna performance by assessing feeding coefficients. Antenna clusters with multiple feeding ports are utilized, which brings additional degrees of freedom and improves the performance. This work considers fixed shape and matching networks. The method is based on quadratic programming and maximizes total efficiency constrained by channel correlation and channel power distribution. The formulation provided in the article enables establishing trade-offs between all mentioned metrics. Evaluating the performance in this manner provides comprehensive information about the chosen geometry and port placement. Selected examples demonstrate how efficiency and channel correlation can be both in agreement but also in significant conflict. The effect of frequency dispersion on feeding is also investigated.
引用
收藏
页码:4785 / 4795
页数:11
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