一种新型单层超表面宽带CP天线

IF 0.6 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Electromagnetics Pub Date : 2022-11-17 DOI:10.1080/02726343.2022.2161708

Yuan Chi

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引用次数: 0

摘要

摘要本文提出了一种新型的单层超表面宽带圆极化天线。单层MT由4个 × 4个具有切角方形槽的截角方形贴片单元。与单截角方形贴片相比，引入角切方形插槽可以通过改变插槽大小来增加设计灵活性，以获得更宽的CP操作带宽。狭缝形孔径耦合结构和微带馈电结构被放置在一起，以向MT提供耦合能量。注意，这种MT和缝隙天线共享相同的参考接地平面，并且在整个CP天线结构之间没有气隙。这种设计可以容易地使轮廓低并且结构紧凑。测试结果表明，该天线具有较宽的3dB轴比带宽（18.2%，5.25 ~ 6.3 GHz）和−10 dB的宽阻抗带宽（19%，5.25 ~ 6.35 GHz），这非常适合于具有低轮廓和宽带要求的无线通信系统。

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A new wideband CP antenna with a single-layer metasurface

ABSTRACT In this paper, a new wideband circularly polarized (CP) antenna with a single-layer metasurface (MT) is developed. The single-layer MT consists of 4 × 4 truncated corner square patch cells with corner-cut square slots. Compared to the single truncated corner square patch, introducing corner-cut square slot can increase the design flexibility by changing the slot size for a wider CP operating bandwidth. A slit-shaped aperture coupling structure and a microstrip fed structure are placed together to provide coupling energy to the MT. Note that such MT and slot antenna share the same reference ground plane, and there is no air gap among the overall CP antenna structure. This design could easily make the profile low and the structure compact. The tested results reveal that the presented antenna features a broad 3-dB axial ratio bandwidth (18.2%, 5.25 ~ 6.3 GHz) and a wide −10-dB impedance bandwidth (19%, 5.25 ~ 6.35 GHz), which is very suitable for wireless communication systems with low-profile and wideband requirements.

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来源期刊

Electromagnetics 工程技术-工程：电子与电气

CiteScore

1.60

自引率

12.50%

发文量

审稿时长

6 months

期刊介绍： Publishing eight times per year, Electromagnetics offers refereed papers that span the entire broad field of electromagnetics and serves as an exceptional reference source of permanent archival value. Included in this wide ranging scope of materials are developments in electromagnetic theory, high frequency techniques, antennas and randomes, arrays, numerical techniques, scattering and diffraction, materials, and printed circuits. The journal also serves as a forum for deliberations on innovations in the field. Additionally, special issues give more in-depth coverage to topics of immediate importance. All submitted manuscripts are subject to initial appraisal by the Editor, and, if found suitable for further consideration, to peer review by independent, anonymous expert referees. Submissions can be made via email or postal mail.