支杆直径和形状对欧洲航天局深空天线指向性和第一侧叶的影响

IF 1.4 4区计算机科学 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

International Journal of Microwave and Wireless Technologies Pub Date : 2024-05-30 DOI:10.1017/s1759078724000527

Davide Arenare, Fabio Pelorossi, Filippo Concaro, Marco Pasian

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引用次数: 0

摘要

大型反射天线，如欧洲航天局的深空天线（DSA），实际上总是需要支柱来支撑次反射器。虽然不可避免，但它们会降低天线的性能。为了尽量减少这种恶化，了解不同特征（包括支撑杆直径和形状）所起的作用至关重要。本文针对由 DSA3 和 DSA4 组成的测试案例，就这些特征对天线效率和边叶的影响进行了详细的数值研究。本文首次以全面和定量的方式（包括支柱设计的不同排列组合）证明了这两个特征对确定劣化的重要意义，从而为支柱设计提供了重要反馈。

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On the effects of struts diameter and shape on the European Space Agency deep space antenna directivity and first side lobe

Large reflector antennas, such as the European Space Agency deep space antennas (DSAs), practically always require struts to support the sub-reflector. While inevitable, they deteriorate the antenna performance. To minimize this deterioration, it is pivotal to understand the role played by different features, including struts diameter and shape. This paper proposes a detailed numerical investigation on the impact of these features on antenna efficiency and side lobes, for a test case comprising both DSA3 and DSA4. It is demonstrated, for the first time in a comprehensive and quantitative way that includes different permutations for the strut design, that both features are significant to define the deterioration, thus providing a significant feedback for struts design.

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来源期刊

International Journal of Microwave and Wireless Technologies ENGINEERING, ELECTRICAL & ELECTRONIC-TELECOMMUNICATIONS

CiteScore

3.50

自引率

7.10%

发文量

130

审稿时长

6-12 weeks

期刊介绍： The prime objective of the International Journal of Microwave and Wireless Technologies is to enhance the communication between microwave engineers throughout the world. It is therefore interdisciplinary and application oriented, providing a platform for the microwave industry. Coverage includes: applied electromagnetic field theory (antennas, transmission lines and waveguides), components (passive structures and semiconductor device technologies), analogue and mixed-signal circuits, systems, optical-microwave interactions, electromagnetic compatibility, industrial applications, biological effects and medical applications.