双模共振下的存根不对称自相移圆极化天线

IF 0.9 4区 工程技术 Q4 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS International Journal of RF and Microwave Computer-Aided Engineering Pub Date : 2024-05-24 DOI:10.1155/2024/3884672
Shan-Shan Gu, Wen-Jun Lu, Fei-Yan Ji, Lei Zhu
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引用次数: 0

摘要

本文提出了一种新颖的宽带双模谐振圆极化(CP)天线设计方法。文章提出了一种由一组闭式公式支持的低复杂度分析设计方法。因此,宽带双模 CP 特性可以通过存根不对称自移相偶极子和不相等馈电分支进行正向预测和简单实现。首先,利用存根同时激励双谐振模式来拓宽阻抗带宽。然后,通过加入不相等的 Y 形微带分支和不对称槽线存根,自动实现了宽带 CP 的相位正交和等幅条件。最后,制作的原型天线的模拟和测量结果的吻合进一步证实了设计方法的可行性。研究表明,所提出的天线在孔径方向的阻抗带宽为 20.1%,3 dB 轴向比带宽为 16.3%。
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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Stub Asymmetry-Enabled Self-Phase-Shift Circularly Polarized Antenna under Dual-Mode Resonance

In this article, a novel design approach to wideband dual-mode resonant circularly polarized (CP) antenna is advanced. An analytical design approach with low complexity as supported by a set of closed-form formulas is presented. Thus, the wideband dual-mode CP characteristics can be forward predicted and simply realized by incorporating stub asymmetry-enabled self-phase-shift dipoles and unequal feeding branches. At first, stubs are employed to broaden the impedance bandwidth by simultaneously exciting dual resonant modes. Then, the phase quadrature and equal magnitude conditions for wideband CP can be automatically realized by incorporating unequal Y-shaped microstrip branches and asymmetric slotline stubs. Finally, the coincidence between the simulated and measured results of the fabricated prototype antenna further confirms the feasibility of the design approach. It is shown that the presented antenna can exhibit an impedance bandwidth of 20.1% and a 3 dB axial ratio bandwidth of 16.3% in the boresight direction.

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来源期刊
CiteScore
4.00
自引率
23.50%
发文量
489
审稿时长
3 months
期刊介绍: International Journal of RF and Microwave Computer-Aided Engineering provides a common forum for the dissemination of research and development results in the areas of computer-aided design and engineering of RF, microwave, and millimeter-wave components, circuits, subsystems, and antennas. The journal is intended to be a single source of valuable information for all engineers and technicians, RF/microwave/mm-wave CAD tool vendors, researchers in industry, government and academia, professors and students, and systems engineers involved in RF/microwave/mm-wave technology. Multidisciplinary in scope, the journal publishes peer-reviewed articles and short papers on topics that include, but are not limited to. . . -Computer-Aided Modeling -Computer-Aided Analysis -Computer-Aided Optimization -Software and Manufacturing Techniques -Computer-Aided Measurements -Measurements Interfaced with CAD Systems In addition, the scope of the journal includes features such as software reviews, RF/microwave/mm-wave CAD related news, including brief reviews of CAD papers published elsewhere and a "Letters to the Editor" section.
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