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Low-loss polynomial White cell optical true-time delay engine for wideband radio frequency array beam steering

机译:用于宽带射频阵列波束控制的低损耗多项式白细胞光学实时延迟引擎

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摘要

An optical true-time delay (OTTD) engine based on a polynomial White cell (quadratic) is designed and simulated with commercially available components with a time delay increment of at least 25 ps for wideband beam steering in the frequency range of 2-18 GHz. The simulated quantification of aberration losses show for the first time that aberration losses in the null cell are about 5.0dB. However, for the longer delay arms, there is an additional loss of about 3.2 dB/delay each time a beam travels an arm with a lens train used as a delay element compared with the same delay generated without a lens train. We present a design and simulation of a low-loss delay arms quartic cell without a lens train by using a separate field lens for each delay arm for efficient wideband beam steering.
机译:使用市售组件设计和仿真基于多项式白盒(二次)的光学实时延迟(OTTD)引擎,其时延增量至少为25 ps,以便在2-18 GHz频率范围内进行宽带波束转向。像差损耗的模拟量化首次表明,空单元中的像差损耗约为5.0dB。但是,对于较长的延迟臂,与不使用透镜列而产生的相同延迟相比,每次光束通过使用透镜列作为延迟元件的臂行进时,都会有大约3.2 dB /延迟的额外损失。我们通过对每个延迟臂使用单独的物镜来进行有效的宽带束转向,提出了一种不带透镜列的低损耗延迟臂四元盒的设计和仿真。

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