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.

次级电子倍增是一种共振电子现象，其中由于初级电子撞击RF表面而发射次级电子。二次电子然后与RF场相互作用以返回到结构，从而产生更多的二次电子。电子的数量随着时间的推移而增长，直到RF信号失真或发生损坏。二次电子倍增器是卫星通信设备和粒子加速器的主要限制因素，因为这两种应用都需要高功率和真空。目前，在卫星工业中，通过在RF设计中提供巨大的安全裕度来处理微电子倍增器。更好地了解微电子倍增器可能会导致更小的利润，从而显着降低成本。卫星通信产业价值数十亿英镑。最近在加速器的背景下对二次电子倍增器的研究导致了用于估计和控制二次电子倍增器的精确计算工具。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，并以现有部件的实验测量为基准。这些工具将用于优化具有更高功率处理的卫星通信设备。

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