Millimeter-Wave Differentially Fed Single-Layered Circularly Polarized Antenna

IF 3.7 2区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Antennas and Wireless Propagation Letters Pub Date : 2024-12-27 DOI:10.1109/LAWP.2024.3523510

Runcong Lv;Mingxuan Liang;Shi Feng Nie;Qing-Yi Guo

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Abstract

A millimeter-wave (mmw) circularly polarized (CP) antenna in single-layered laminate is proposed in this letter. For performances, it yields obvious advantages in terms of profile (single layer), gain and bandwidth when compared with recently reported high-gain CP antennas. For design method is the first attempt to introduce I-shaped differentially fed slots to achieve enhanced bandwidth over the traditional slot antenna. Then, we add complementary dipoles to the same plane of the I-shaped slots, contributing to CP radiation. Then, we build 1 × 8 antenna array to increase the gain of the proposed CP element. For demonstration, a single-layered CP antenna array operating at 77 GHz is designed, fabricated, and measured. Measured results show that the overlapped bandwidth for impedance matching, axial ratio and gain is 13% [(72 to 82) GHz]. It realizes a flat in-band gains with a peak gain of 13 dBic. It is a promising candidate for mmw vehicular communications systems such as unmanned aerial vehicles (UAV) and motor cars, which require low profile, CP radiation and fast data transmission speed.

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毫米波差分馈电单层圆极化天线

本文提出了一种毫米波圆极化（CP）单层层压天线。在性能方面，与最近报道的高增益CP天线相比，它在外形（单层）、增益和带宽方面具有明显的优势。对于设计方法是首次尝试引入i型差分馈电槽，以实现比传统槽天线带宽的增强。然后，我们在i型槽的同一平面上添加互补偶极子，从而促进CP辐射。然后，我们构建了1 × 8天线阵列，以提高所提出的CP元的增益。为了演示，设计、制作并测量了工作在77 GHz的单层CP天线阵列。测量结果表明，用于阻抗匹配、轴比和增益的重叠带宽为13% [(72 ~ 82)GHz]。它实现了平坦的带内增益，峰值增益为13 dBic。对于要求低姿态、CP辐射和快速数据传输速度的无人机和汽车等毫米波车载通信系统来说，它是一个很有前途的候选者。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Antennas and Wireless Propagation Letters 工程技术-电信学

CiteScore

8.00

自引率

9.50%

发文量

529

审稿时长

1.0 months

期刊介绍： IEEE Antennas and Wireless Propagation Letters (AWP Letters) is devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation. These are areas of competence for the IEEE Antennas and Propagation Society (AP-S). AWPL aims to be one of the "fastest" journals among IEEE publications. This means that for papers that are eventually accepted, it is intended that an author may expect his or her paper to appear in IEEE Xplore, on average, around two months after submission.