A Constrained Lens Antenna Generating One Thousand Dual-Polarized Beams for High-Throughput Satellite Systems

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

IEEE Transactions on Antennas and Propagation Pub Date : 2025-02-19 DOI:10.1109/TAP.2025.3540285

Gianfranco Ruggerini;Lino Russo;Jaione Galdeano;Piero Angeletti;Giovanni Toso

引用次数: 0

Abstract

A true time delay analog beamforming network (BFN) suitable for Ka-band active antennas with more than 1500 radiating elements and able to generate 1001 beams in dual polarization is presented. The BFN, based on an air-filled 3-D discrete lens, is characterized by a minimized number of components and limited volume. Its complexity is only marginally dependent on the number of desired beams and the number of radiating elements. It is compatible with a large frequency bandwidth, large 3-D field of view, and dual polarizations. A design procedure based on the geometrical optics (GOs) is validated adopting a full-wave analysis. A breadboard fully representative of the entire antenna has been manufactured and tested. The excellent agreement between experimental and simulated results validates the antenna design and performance.

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高通量卫星系统中产生1000双极化波束的约束透镜天线

提出了一种适用于具有1500个以上辐射单元的ka波段有源天线的真时延模拟波束形成网络（BFN），该网络能在双极化条件下产生1001束。BFN基于充气三维离散透镜，其特点是组件数量最少，体积有限。它的复杂性只与所需光束的数量和辐射单元的数量有轻微的关系。它兼容大频率带宽、大3d视场和双偏振。采用全波分析验证了基于几何光学的设计方法。已经制造并测试了一个完全代表整个天线的面包板。实验结果与仿真结果吻合良好，验证了天线的设计和性能。

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