Microwave filters with improved power handling capabilities for satellite applications

微波滤波器具有改进的卫星应用功率处理能力

• 批准号: ST/N00230X/1
• 负责人: Graeme Burt
• 金额: $ 14.02万
• 依托单位: Lancaster University
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FN00230X%2F1
• 关键词: Microwave; filters; improved; power; handling

Multipactor is a resonant electron phenomena where secondary electrons are emitted due to primary electrons hitting the RF surface. The secondary electrons then interact with the RF field to return to the structure creating more secondary electrons. The number of electrons growths with time until the RF signal is distorted or damage occurs. Multipactor is a major limiting factor in both satellite communications equipment and particle accelerators due to the high power and vacuum required in both applications. At present multipactor is dealt with in the satellite industry by providing huge safety margins in RF design. Better understanding of multipactor could result is smaller margins and hence a significantly reduced cost. The satellite communications industry is worth several billion pounds.Recent studies of multipactor in the context of accelerators has led to accurate computational tools for estimating and controlling multipactor. This project aims to apply these new computational tools and technique to the modelling of satellite communications equipment and to benchmark them against experimental measurements of existing components. These tools will them be used to optimise satellite communications equipment with a higher power handling.

多光子是一种共振电子现象，其中由于一次电子撞击射频表面而发射二次电子。然后，二次电子与射频场相互作用，返回结构，产生更多二次电子。电子数量随着时间的推移而增加，直到射频信号失真或发生损坏。由于卫星通信设备和粒子加速器的应用都需要高功率和真空，因此多重反应器是这两种应用中的主要限制因素。目前，卫星行业通过在射频设计中提供巨大的安全裕度来处理多处理器。更好地理解多处理器可能会导致利润更小，从而显着降低成本。卫星通信产业价值数十亿英镑。最近在加速器背景下对多重因素的研究已经产生了用于估计和控制多重因素的精确计算工具。该项目旨在将这些新的计算工具和技术应用于卫星通信设备的建模，并根据现有组件的实验测量对其进行基准测试。这些工具将用于优化具有更高功率处理能力的卫星通信设备。

项目成果

Analytical and numerical simulation of multipactor within a helical resonant filter

螺旋谐振滤波器内多重滤波器的分析和数值模拟

• DOI: http://dx.10.1109/ivec.2017.8289632
• 发表时间: 2017
• 作者: Constable D

Multipactor in 4 rod crab cavities

4 杆蟹腔中的多功能测量仪

• DOI: http://dx.10.1109/eumc.2016.7824320
• 发表时间: 2016
• 作者: Burt G