{"title":"一种圆极化多输入多输出天线，单感测，适用于6 GHz以下的5G应用","authors":"Zin Mar Phyo, Takafumi Fujimoto, Chai-Eu Gaun","doi":"10.1049/mia2.12426","DOIUrl":null,"url":null,"abstract":"<p>In this study, a compact wideband circularly polarised Multiple Input Multiple Output (MIMO) antenna with the two parasitic elements is proposed. The printed monopole antenna for wideband circular polarisation proposed in authors' previous study is used as an antenna element. One-sided substrate reflector is installed at the back side of the antenna, positioned 0.2λ<sub>0</sub> away, to improve the gain. The circularly polarised radiation, deteriorated by the influence of mutual coupling of two antenna elements and reflector, is improved by deploying two parasitic elements on the bottom layer of the antenna's substrate. The antenna's size is 0.99λ<sub>0</sub> × 0.32λ<sub>0</sub> and the reflector's size is 1.41λ<sub>0</sub> × 0.82λ<sub>0</sub> (λ<sub>0</sub> is the free-space wavelength at lowest operating frequency). The measured bandwidth of 10 dB impedance with a 3 dB axial ratio is 33.49% from 3.53 to 4.95 GHz, which can be utilised for sub-6 GHz 5G applications. The simulated and experimental results are compared to validate the antenna characteristics.</p>","PeriodicalId":13374,"journal":{"name":"Iet Microwaves Antennas & Propagation","volume":"17 14","pages":"1082-1092"},"PeriodicalIF":1.1000,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/mia2.12426","citationCount":"0","resultStr":"{\"title\":\"A circularly polarised multiple input multiple output antenna with single-sense for sub-6 GHz 5G applications\",\"authors\":\"Zin Mar Phyo, Takafumi Fujimoto, Chai-Eu Gaun\",\"doi\":\"10.1049/mia2.12426\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>In this study, a compact wideband circularly polarised Multiple Input Multiple Output (MIMO) antenna with the two parasitic elements is proposed. The printed monopole antenna for wideband circular polarisation proposed in authors' previous study is used as an antenna element. One-sided substrate reflector is installed at the back side of the antenna, positioned 0.2λ<sub>0</sub> away, to improve the gain. The circularly polarised radiation, deteriorated by the influence of mutual coupling of two antenna elements and reflector, is improved by deploying two parasitic elements on the bottom layer of the antenna's substrate. The antenna's size is 0.99λ<sub>0</sub> × 0.32λ<sub>0</sub> and the reflector's size is 1.41λ<sub>0</sub> × 0.82λ<sub>0</sub> (λ<sub>0</sub> is the free-space wavelength at lowest operating frequency). The measured bandwidth of 10 dB impedance with a 3 dB axial ratio is 33.49% from 3.53 to 4.95 GHz, which can be utilised for sub-6 GHz 5G applications. The simulated and experimental results are compared to validate the antenna characteristics.</p>\",\"PeriodicalId\":13374,\"journal\":{\"name\":\"Iet Microwaves Antennas & Propagation\",\"volume\":\"17 14\",\"pages\":\"1082-1092\"},\"PeriodicalIF\":1.1000,\"publicationDate\":\"2023-10-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/mia2.12426\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Iet Microwaves Antennas & Propagation\",\"FirstCategoryId\":\"94\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1049/mia2.12426\",\"RegionNum\":4,\"RegionCategory\":\"计算机科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Iet Microwaves Antennas & Propagation","FirstCategoryId":"94","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1049/mia2.12426","RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
A circularly polarised multiple input multiple output antenna with single-sense for sub-6 GHz 5G applications
In this study, a compact wideband circularly polarised Multiple Input Multiple Output (MIMO) antenna with the two parasitic elements is proposed. The printed monopole antenna for wideband circular polarisation proposed in authors' previous study is used as an antenna element. One-sided substrate reflector is installed at the back side of the antenna, positioned 0.2λ0 away, to improve the gain. The circularly polarised radiation, deteriorated by the influence of mutual coupling of two antenna elements and reflector, is improved by deploying two parasitic elements on the bottom layer of the antenna's substrate. The antenna's size is 0.99λ0 × 0.32λ0 and the reflector's size is 1.41λ0 × 0.82λ0 (λ0 is the free-space wavelength at lowest operating frequency). The measured bandwidth of 10 dB impedance with a 3 dB axial ratio is 33.49% from 3.53 to 4.95 GHz, which can be utilised for sub-6 GHz 5G applications. The simulated and experimental results are compared to validate the antenna characteristics.
期刊介绍：
Topics include, but are not limited to:
Microwave circuits including RF, microwave and millimetre-wave amplifiers, oscillators, switches, mixers and other components implemented in monolithic, hybrid, multi-chip module and other technologies. Papers on passive components may describe transmission-line and waveguide components, including filters, multiplexers, resonators, ferrite and garnet devices. For applications, papers can describe microwave sub-systems for use in communications, radar, aerospace, instrumentation, industrial and medical applications. Microwave linear and non-linear measurement techniques.
Antenna topics including designed and prototyped antennas for operation at all frequencies; multiband antennas, antenna measurement techniques and systems, antenna analysis and design, aperture antenna arrays, adaptive antennas, printed and wire antennas, microstrip, reconfigurable, conformal and integrated antennas.
Computational electromagnetics and synthesis of antenna structures including phased arrays and antenna design algorithms.
Radiowave propagation at all frequencies and environments.
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