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首页> 外文期刊>IEE Proceedings. Part J >Optical switch design for true time delay array antenna
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Optical switch design for true time delay array antenna

机译:真延时阵列天线的光开关设计

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摘要

A new architecture for an optical system to achieve true time delay phased array antenna beam steering is proposed. This system is based on the association of switching matrixes and optical fibres of different lengths. A comparative study of the different available switch types has been carried out and concludes that total internal reflection (TIR) switches fit the specific requirements. The switch and entire matrix are designed using 2D and 3D finite difference beam propagation methods (FD-BPM). Then, the electrical behaviour of the device is investigated using a drift diffusion model. Results show the following performance: fibre to fibre loss equal to 10 dB, crosstalk around -2.0 dB and bandwidth close to 160 MHz.
机译:提出了一种实现实时延时相控阵天线波束控制的光学系统新架构。该系统基于交换矩阵和不同长度的光纤的关联。对不同的可用开关类型进行了比较研究,得出的结论是,全内反射(TIR)开关符合特定要求。使用2D和3D有限差分光束传播方法(FD-BPM)设计开关和整个矩阵。然后,使用漂移扩散模型研究器件的电性能。结果显示出以下性能:光纤到光纤的损耗等于10 dB,串扰约为-2.0 dB,带宽接近160 MHz。

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