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一种具有去相关场的基于法布里-珀罗腔的高度紧凑的多输入多输出天线。

A highly compact Fabry Perot cavity-based MIMO antenna with decorrelated fields.

作者信息

Illahi M Umair, Khan Muhammad U, Hussain Rifaqat, Tahir Farooq A

机构信息

School of Electrical Engineering and Computer Science, National University of Sciences and Technology (NUST), Islamabad, Pakistan.

Department of Electrical Engineering, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, Saudi Arabia.

出版信息

Sci Rep. 2022 Aug 18;12(1):14021. doi: 10.1038/s41598-022-18050-w.

DOI:10.1038/s41598-022-18050-w
PMID:35982089
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9388507/
Abstract

This work presents the design of a low profile Fabry-Perot cavity-based multiple-input-multiple-output antenna with low correlation coefficient. The fields of closely placed antenna elements are tilted by using a phase-gradient partially reflective surface (PRS), thereby decreasing the correlation coefficient. The PRS is designed in such a way that its reflection phase is complementary to that of the ground plane. The PRS decorrelates the fields of the two radiating elements when placed at a height of λ/10 above them resulting in a reduction of the correlation coefficient by almost 95% for an isotropic environment. This height is considerably less than λ/4, which has been reported previously.

摘要

这项工作展示了一种基于低剖面法布里-珀罗腔的低相关系数多输入多输出天线的设计。通过使用相位梯度部分反射面（PRS）使紧密放置的天线单元的场倾斜，从而降低相关系数。PRS的设计方式使其反射相位与接地平面的反射相位互补。当PRS放置在两个辐射单元上方λ/10的高度时，它会使这两个辐射单元的场去相关，在各向同性环境中，相关系数降低了近95%。这个高度远小于先前报道的λ/4。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0a7/9388507/09b661b244d4/41598_2022_18050_Fig11_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0a7/9388507/170ac0bcab61/41598_2022_18050_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0a7/9388507/d3501f951cb4/41598_2022_18050_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0a7/9388507/66927283ef70/41598_2022_18050_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0a7/9388507/3d4b9bcfe469/41598_2022_18050_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0a7/9388507/1abe5beb8079/41598_2022_18050_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0a7/9388507/06be49cde734/41598_2022_18050_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0a7/9388507/1605ace777a4/41598_2022_18050_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0a7/9388507/5e27854f625f/41598_2022_18050_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0a7/9388507/fc30a8b3d93d/41598_2022_18050_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0a7/9388507/8e1d742fc1fc/41598_2022_18050_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0a7/9388507/09b661b244d4/41598_2022_18050_Fig11_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0a7/9388507/170ac0bcab61/41598_2022_18050_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0a7/9388507/d3501f951cb4/41598_2022_18050_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0a7/9388507/66927283ef70/41598_2022_18050_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0a7/9388507/3d4b9bcfe469/41598_2022_18050_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0a7/9388507/1abe5beb8079/41598_2022_18050_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0a7/9388507/06be49cde734/41598_2022_18050_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0a7/9388507/1605ace777a4/41598_2022_18050_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0a7/9388507/5e27854f625f/41598_2022_18050_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0a7/9388507/fc30a8b3d93d/41598_2022_18050_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0a7/9388507/8e1d742fc1fc/41598_2022_18050_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0a7/9388507/09b661b244d4/41598_2022_18050_Fig11_HTML.jpg

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