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基于WDM的多束光子光束制造器,带有频谱再利用

Rui Oliveira, Rogério N Nogueira, Miguel V Drummond

|December 22, 2023

概括

本研究介绍了一种使用波长分割多重复合 (WDM) 来同时创建多个射频束的新型光子束变频器. 这种WDM光束变频器可以为先进的分相阵列天线系统高效地重复使用光谱.

科学领域:

光子学是指光子学的使用方法.
电气工程电气工程
天线系统天线系统

背景情况:

阶段阵列天线需要复杂的光束成形.
传统的方法可能在光谱上是低效的.
光子解决方案提供高带宽和并行性.

研究的目的:

介绍一款基于波长分割多重复合 (WDM) 的新型光子束制造器.
为了使同一个光学频谱内的多个射频束同时产生.
为了证明RF相位阵列发射器的光谱效率.

主要方法:

使用WDM信号用于调制的RF侧带和光学载体.
实现RF侧带的复杂值过.
采用光学载体的光学频率转移.
集成光电探测器用于信号生成和权重.

主要成果:

分析导出,数值模拟和实验证明拟议的架构.
成功生成和传输两个独立的RF光束在不同的方向.
使用共享WDM通道同时生成多束光的验证.

结论:

拟议的WDM光子束造型器有效地产生多个射频束.
这种架构通过重复使用WDM通道来提高光谱效率.
该技术适用于先进的射频相位阵列天线发射器.

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Bandpass Sampling

Bandpass Sampling

In signal processing, bandpass sampling is an effective technique for sampling signals that have most of their energy concentrated within a narrow frequency band. This type of signal is known as a bandpass signal. The key principle of bandpass sampling involves sampling the signal at a rate that is greater than twice the signal's bandwidth to prevent aliasing.
A bandpass signal has a spectrum with a lower frequency limit, denoted as ω1, and an upper frequency limit, denoted as ω2....