Modulated Frequency-Selective Doubly Curved Sub-Reflector for a Dual-Band Multiple Spot Beam Communication Satellite Antenna System

IF 4.6 1区计算机科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Antennas and Propagation Pub Date : 2024-10-15 DOI:10.1109/TAP.2024.3476944

Andreas Ericsson;Min Zhou;Stig B. Sørensen;Tonny Rubæk;Mathieu Riel;Nelson J. G. Fonseca

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引用次数: 0

Abstract

An antenna solution for broadband communication satellite applications is presented. The proposed antenna design provides a full dual-band (Tx/Rx) four-color multibeam coverage of Europe in K/Ka-band while utilizing only a single main reflector aperture. This solution is especially relevant for smaller platforms and secondary payloads. The antenna system consists of an offset Cassegrain antenna combining two multiple-feed-per-beam (MFB) feed clusters and a doubly curved modulated modulated frequency surface (FSS) sub-reflector, which is the key enabling technology validated in this work. By utilizing a modulated FSS design, the antenna system fulfills all radio frequency (RF) requirements that were specified on the antenna coverage parameters. An engineering model (EM) of the doubly curved FSS sub-reflector has been designed and fabricated. Its RF performance was characterized experimentally, and good agreement has been observed between simulations and measurements, thus validating the proposed concept.

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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