1. Central-Symmetry Decoupling Technique for Circularly-Polarized MIMO System of Tightly Packed Chinese-character Shaped Patch Antennas
- Author
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F. Li, Botao Feng, K. Chen, Z. Jin, W. Fan, A. Cui, Z. Du, W. Xia, N. Yuan, Q. Xu, X. Liu, J. Luo, F. Peng, E. A. Miran, F. Fang, K.-D. Xu, S. B. Liu, Yanping Huang, L. F. Chernjgor, Y. Jiang, Y.-Z. Sui, Y. Ye, G. Zhi, W.-H. Zong, Z.-Q. Yang, X. Y. Shen, Z. Huang, X.-Y. Qu, L. Xing, Z. Sun, C. Ren, C-Q. Li, J. Ashish, Li Yu, M. Ma, H. Pei, Z. Chen, B. J. Liu, A. P. Rao, Y. Ren, K. L. Chung, X. Zheng, Y. Ji, Y.-L. Chen, O. K. Jensen, J. C. Chen, J. Tang, W. Qi, L. S. Wang, S. Gao, A. Zhang, Q. Yang, M. Zhang, L. Huang, W. Xue, Jianping Zheng, Zujian Wang, Yangheng Zheng, Y. Xia, X. An, F. Zhang, W. Yuan, S. Zhu, X. T. Huang, Xurong Chen, J. Y. Zhang, H. Tang, J. Xing, M. Ciydem, B. Huang, Q. He, Y. Li, Y. Zhao, Tao Liu, M. Qu, W. Lin, T. Jiang, and K. Rong
- Subjects
Physics ,Ideal (set theory) ,Correlation coefficient ,business.industry ,MIMO ,Astronomy and Astrophysics ,Function (mathematics) ,Optics ,Diversity gain ,Electrical and Electronic Engineering ,Antenna (radio) ,business ,Envelope (mathematics) ,Decoupling (electronics) ,Computer Science::Information Theory - Abstract
This article presents a novel decoupling technique for the circularly polarized multiple-inputmultiple- output (CP-MIMO) system composed of Guoshaped patch antennas. A comparative study has been conducted on antenna performance as a function of packing distance before and after applying the technique. A prototype of two-element Guo-shaped patch MIMO at a small inter-element spacing of 12.5 mm has devised aiming for the 5G new radio n38 (2.57-2.62 GHz) applications. Simulation reinforced with experimental results confirmed the effectiveness of the proposed technique, whereas the two Guo-shaped patch elements packed in such small spacing can be operated independently. Both the envelope correlation coefficient and diversity gain are approaching their ideal values.
- Published
- 2021