Improvement for MIMO Systems by Increasing Antenna Isolation and Shaping Radiation Pattern Using Hybrid Network
| العنوان: | Improvement for MIMO Systems by Increasing Antenna Isolation and Shaping Radiation Pattern Using Hybrid Network |
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| المؤلفون: | Li Jun Jiang, Yujie Zhang, Di Wu, Ross D. Murch, Min Li, Fan Jiang, Lawrence Yeung |
| المصدر: | IEEE Transactions on Industrial Electronics. 69:13891-13901 |
| بيانات النشر: | Institute of Electrical and Electronics Engineers (IEEE), 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | Control and Systems Engineering, Computer science, MIMO, Impedance matching, Isolation (database systems), Electrical and Electronic Engineering, Antenna (radio), Topology, Omnidirectional antenna, Throughput (business), Decoupling (electronics), Radiation pattern |
| الوصف: | In this paper, a novel method is proposed to design a hybrid network (HN) to increase isolation and shape radiation patterns for multiple-input multiple-output (MIMO) antenna systems. The HN is a combination of a decoupling feeding network (DFN) and a defected ground network (DGN), which are populated by several surface-mounted reactive components whose reactances are determined by the N-ary optimization algorithm. Two decoupling examples are presented to validate the design methodology and elaborate on the design procedure. Measurement results show that the HN helps to realize impedance matching with reflection coefficients below -10 dB, isolation improvement from -5.4 dB/-8.9 dB to below -20 dB, and low envelope correlation coefficient below 0.06 for MIMO antennas with the element separation of 0.160/0.240. Moreover, in both examples, the decoupling case with omnidirectional radiation patterns achieves a better throughput performance, compared with another decoupling case with directional radiation. In comparison to prior decoupling networks only focusing on isolation enhancement, the proposed HN achieves high isolation and desired radiation patterns simultaneously with a very accurate design methodology. |
| تدمد: | 1557-9948 0278-0046 |
| DOI: | 10.1109/tie.2021.3128914 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::183c14d8102799c68149b990250ec979 https://doi.org/10.1109/tie.2021.3128914 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........183c14d8102799c68149b990250ec979 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15579948 02780046 |
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| DOI: | 10.1109/tie.2021.3128914 |