Semiconductor and circuit modelling methods for next generation RF protection devices

微波通信系统在全球生活的各个方面都有各种各样的用途。以雷达接收机为例。接收器必须能够探测到微弱的电磁辐射，但如果有一个非常大的输入信号，接收器必须能够免受损坏。为了满足这些相互矛盾的要求，在接收器前面安装了接收器保护器。它们被设计成允许小信号通过，但反射大信号。微波通信系统包含非常敏感的组件，可能被入射电磁场（EM）损坏，因此安装接收器保护器等设备对其需求至关重要。目前这些接收机保护装置的建模技术无法在所有感兴趣的频率上提供足够准确的数据，以确保令人满意的保护水平，因此需要取得进展。该项目的总体目标是改进用于GHz系统设计的仿真技术。该项目的一部分将测量现有的接收器保护器，并对其机械结构和射频性能进行表征。然后将这些测量结果与使用现有模拟技术的接收器保护器的模拟结果进行比较——模拟和实验之间的任何差异都将被量化。然后，该项目将寻求使用诺丁汉大学工程学院开发的尖端电磁和设备模拟技术来改进这些设备的模拟。

Microwave communication systems have a variety of uses in all aspects of global life. Consider, as an example, a radar receiver. The receiver must be able to detect weak electromagnetic radiation and yet be protected from damage if there is a very large incoming signal. To meet these contradictory requirements, devices known as receiver protectors are installed in front of the receiver. These are designed to allow small signals through but to reflect large signals.Microwave communication systems contain very sensitive components that can be damaged by incident electromagnetic (EM) fields, so installing devices such as receiver protectors is paramount to their needs. Current modelling techniques for these receiver protection devices are incapable of providing sufficiently accurate data at all frequencies of interest to ensure satisfactory protection levels, thus advancements need to be made. The overall aim of the project is to improve the simulation technologies available for the design of GHz systems. One part of the project will measure existing receiver protectors and characterize both their mechanical construction and their RF performance. These measurements will then be compared to simulations of the receiver protectors using existing simulation technologies - any differences between the simulations and experiment will be quantified. The project will then seek to improve the simulation of such devices using cutting edge electromagnetic and device simulation techniques being developed by the Faculty of Engineering, University of Nottingham.