空间应用全金属ka波段波导反射天线

2022 International Conference on Electrical and Computing Technologies and Applications (ICECTA) Pub Date : 2022-11-23 DOI:10.1109/ICECTA57148.2022.9990418

K. Ali, A. Mustapha, M. Abou-Khousa

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引用次数: 0

摘要

本文报道了一种具有20°波束转向能力的全金属反射天线的设计和分析。反射阵列由一个由矩形波导元件构成的5 × 5的均匀网格单元组成。波导的深度以这样一种方式变化，即获得渐进相移，以便将主光束转向所需的方向。采用数值电磁模拟方法，对单元胞体和设计的反射射线进行了全面分析。在33.25 GHz频率下，该波导反射光的实测增益为16.1 dBi, 3db增益带宽为22%。所提出的反射天线能够引导其主波束向18°偏离舷侧。

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All-metal Ka-Band Waveguide Reflectarray Antenna for Space Applications

This paper reports the design and analysis of an all-metal reflectarray antenna that has a beam steering capability of 20 ° from the broadside. The reflectarray consists of a $5 \times 5$ uniform grid of unit cells which are made from rectangular waveguide elements. The depths of the waveguides are varied in such a way that progressive phase shifts are obtained in order to steer the main beam toward the desired direction. The unit cell as well as the designed reflectarray were comprehensively analyzed using numerical electromagnetic simulations. The measured gain of the fabricated waveguide reflectarray is 16.1 dBi at 33.25 GHz and its 3-dB gain bandwidth is 22%. The proposed reflectarray antenna is capable to steer its main beam toward 18 ° off broadside.

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2022 International Conference on Electrical and Computing Technologies and Applications (ICECTA)

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