Finding Optimal Total Active Reflection Coefficient and Realized Gain for Multiport Lossy Antennas

被引：19

作者：

Capek, Miloslav ^{[1
]}

Jelinek, Lukas ^{[1
]}

Masek, Michal ^{[1
]}

机构：

[1] Czech Tech Univ, Fac Elect Engn, Dept Electromagnet Field, Prague 16627, Czech Republic

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2021年 / 69卷 / 05期

关键词：

Antenna theory; eigenvalues and eigenfunctions; electromagnetic modeling; method of moments; MIMO; optimization; HANDSET ANTENNA; EFFICIENCY; RADIATION; ARRAYS;

D O I：

10.1109/TAP.2020.3030941

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：

A numerically effective description of the total active reflection coefficient and realized gain is studied for multiport antennas. Material losses are fully considered. The description is based on operators represented in an entire-domain port-mode basis, i.e., on matrices with favorably small dimensions. Optimal performance is investigated, and the conditions on optimal excitation and matching are derived. The solution to the combinatorial problem of optimal ports' placement and optimal feeding synthesis is also accomplished. Four examples of various complexities are numerically studied, demonstrating the advantages of the proposed method. The final formulas can easily be implemented in existing electromagnetic simulators using an integral equation solver.

引用

页码：2481 / 2493

页数：13

共 9 条

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[4] The Effects of a Generator's Active Input Reflection Coefficient in Antenna Gain Measurements
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[9] The correct application of total active reflection coefficient to evaluate MIMO antenna systems and its generalization to N ports
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