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首页> 外文会议>2019 ESA Workshop on Aerospace EMC >Effect of RF spurious radiation from units on a satellite VHF receiver
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Effect of RF spurious radiation from units on a satellite VHF receiver

机译：来自单元的RF杂散辐射对卫星VHF接收机的影响

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摘要

Use of the VHF frequency band is becoming more common on modern telecommunication and earth observation satellites due to the relatively simple and low cost antennas, wide coverage and highly reliable communication links. Utilising the VHF band requires a significant effort in terms of electric field analysis to predict electromagnetic compatibility issues. EMC issues become critical for these applications due to the very high sensitivity of VHF receivers installed on the satellite. In this frame, Electromagnetic modeling is fundamental to identify potential risks and to reduce and optimize the number of tests at satellite level. This is a challenging task due the large number of equipments emitting in this range. The scope of this paper is to describe the approach followed on Copernicus Sentinel-1 C&D satellites to predict, by EM modeling tools: 1) the electric field levels generated by, and, on-board equipment inside the satellite cavity and, 2) the associated interfering power coupled to the victim antenna. The proposed approach has been implemented by the GALILEO-EMT[1] and can be also effectively extended to other frequency ranges using the proper electromagnetic solver suitable for each frequency band.
机译：由于相对简单和低成本的天线，广泛的覆盖范围和高度可靠的通信链路，在现代电信和对地观测卫星上VHF频段的使用正变得越来越普遍。利用VHF频段需要在电场分析方面做出巨大努力，以预测电磁兼容性问题。由于卫星上安装的VHF接收器具有很高的灵敏度，因此EMC问题对于这些应用变得至关重要。在此框架中，电磁建模对于识别潜在风险以及减少和优化卫星级别的测试数量至关重要。由于在此范围内发射大量设备，因此这是一项艰巨的任务。本文的范围是描述通过电磁建模工具对Copernicus Sentinel-1 C＆D卫星进行预测的方法：1）卫星腔内部以及机载设备产生的电场水平，以及2）耦合到受害天线的相关干扰功率。提议的方法已经由GALILEO-EMT [1]实现，并且可以使用适用于每个频带的适当电磁解算器有效地扩展到其他频率范围。

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