增强汽车应用中透明圆极化天线的性能

IF 3.5 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Open Journal of Antennas and Propagation Pub Date : 2024-09-17 DOI:10.1109/OJAP.2024.3462697
Maryam Faizi Khajeim;Rashid Mirzavand
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引用次数: 0

摘要

本文研究了安装在汽车挡风玻璃上的透明圆极化(CP)天线的性能对车身的影响。本文提出了在车辆地板上加入吸收层以提高天线性能的建议。研究还评估了天线在挡风玻璃上的位置对其性能的影响。利用工作频率为 1.227 GHz 和 1.575 GHz 的透明 CP 螺旋槽天线,研究结果表明,挡风玻璃上 CP 天线的辐射性能很大程度上取决于其位置。此外,车身也会影响 CP 天线的辐射模式和轴向比 (AR)。我们建议调整天线的位置,并在车辆地板上加入一个吸收层来解决这些影响。值得注意的是,这种吸收层有可能同时提高安装在挡风玻璃上的多个天线的性能。通过全波模拟和测量,验证了该层的增强效果。此外,还研究了在有吸收层的情况下,车内座椅和四名乘员对天线性能的影响。在有吸收层和乘员存在的情况下,天线在 1.227 GHz 和 1.575 GHz 的$y^{prime}z^{\prime}$平面上分别实现了 36° 和 31° 的 AR 波束宽度。
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Enhancing Transparent Circularly Polarized Antenna Performance for Automotive Applications
In this paper, the impact of the vehicle body on the transparent circularly polarized (CP) antenna’s performance when installed on the vehicle windshield has been investigated. The incorporation of an absorber layer on the vehicle floor to improve the antenna’s performance has been proposed. The study also evaluates how the placement of the antenna on the windshield affects its performance. Utilizing a transparent CP spiral slot antenna operating at 1.227 GHz and 1.575 GHz, the results reveal that the radiation performance of CP antennas on windshields significantly depends on their positioning. Additionally, the vehicle body affects the CP antenna’s radiation pattern and axial ratio (AR). We propose adjusting the antenna’s position and incorporating an absorber layer on the vehicle floor to address these effects. Notably, this absorber layer has the potential to simultaneously improve the performance of multiple antennas mounted on the windshield. The enhancement caused by this layer is verified through full-wave simulations and measurements. The impact of seats and four occupants inside the vehicle on the antenna’s performance in the presence of the absorber layer is also investigated. With the absorber layer and occupants present, the antenna achieves an AR beamwidth of 36° and 31° at 1.227 GHz and 1.575 GHz, respectively, in the $y^{\prime}z^{\prime}$ -plane.
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来源期刊
CiteScore
6.50
自引率
12.50%
发文量
90
审稿时长
8 weeks
期刊最新文献
Front Cover Table of Contents Guest Editorial Introduction to the Special Section on Women’s Research in Antennas and Propagation Section (WRAPS) IEEE ANTENNAS AND PROPAGATION SOCIETY Electromagnetic and Thermal Co-Analysis of an Implanted Dipole Antenna
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