Dual-Mode On-Chip Patch Antenna With High-Efficiency On-Antenna Power Combining

IF 5.8 1区计算机科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Antennas and Propagation Pub Date : 2025-04-28 DOI:10.1109/TAP.2025.3562914

Si-Yuan Tang;Jixin Chen;Pinpin Yan;Qihao Xu;Zekun Li;Peigen Zhou;Xiaoyue Xia;Sidou Zheng;Zhe Chen;Jun Xu;Wei Hong

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引用次数: 0

Abstract

In this article, a dual-mode on-chip patch antenna with on-antenna power combining implemented in 130-nm SiGe BiCMOS technology is proposed for terahertz communications. Area-efficient characteristic is obtained by the proposed power combining method compared to the conventional combiner-based or spatial power combining approach. To illustrate the working principle, the radiation efficiency of the patch antenna is analyzed and calculated based on the quality factor of the cavity model. As such, three approaches are introduced for radiation efficiency improvement of the ultralow-profile on-chip patch antenna, i.e., properly selecting the ground plane layer, enlarging the width-to-length ratio, and introducing the mirrored patches. Then, by using the characteristic mode analysis (CMA), antiphase TM₂₀ mode and TM₁₂ mode are introduced for impedance bandwidth enhancement. Besides, via arrays are introduced beneath the radiator to reshape the nonbroadside pattern of TM₁₂ mode to the broadside beam. Then, a sketch is introduced to make a design guideline. Moreover, the proposed antenna is compared with three reference antennas with other bandwidth enhancement techniques to show its superiority. Finally, the proposed antenna is fabricated and measured, demonstrating advantageous performances of wide impedance bandwidth (284–322 GHz), 3-dB gain bandwidth (285–310 GHz), and high gain (5.3 dBi) without the usage of any off-chip director.

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具有高效率天线功率组合的双模片上贴片天线

本文提出了一种采用130纳米SiGe BiCMOS技术实现的具有天线功率组合的双模片上贴片天线，用于太赫兹通信。与传统的基于组合器或空间功率组合方法相比，本文提出的功率组合方法具有面积效率高的特点。为了说明贴片天线的工作原理，基于腔体模型的质量因子对贴片天线的辐射效率进行了分析和计算。为此，介绍了三种提高超低轮廓片上贴片天线辐射效率的方法，即合理选择接地面层、增大宽长比、引入镜像贴片。然后，利用特征模式分析（CMA），引入反相TM20模式和TM12模式来增强阻抗带宽。此外，在辐射体下方引入通孔阵列，将TM12模式的非舷侧方向图重构为舷侧波束。然后，介绍了一个草图来制定设计指南。并与三种具有其他带宽增强技术的参考天线进行了比较，证明了该天线的优越性。最后，制作并测量了该天线，在不使用任何片外控制器的情况下，展示了宽阻抗带宽（284-322 GHz）、3db增益带宽（285-310 GHz）和高增益（5.3 dBi）的优越性能。

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 Transactions on Antennas and Propagation 工程技术-电信学

CiteScore

10.40

自引率

28.10%

发文量

968

审稿时长

4.7 months

期刊介绍： IEEE Transactions on Antennas and Propagation includes theoretical and experimental advances in antennas, including design and development, and in the propagation of electromagnetic waves, including scattering, diffraction, and interaction with continuous media; and applications pertaining to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques