Orbital Angular Momentum in Radio-A System Study
Orbital Angular Momentum in Radio-A System Study
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DOI：
10.1109/tap.2009.2037701
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发表时间：
2010-02-01
影响因子：
5.7
通讯作者：
Isham, Brett
中科院分区：
文献类型：
--
作者：
Mohammadi, Siavoush Mohaghegh;Daldorff, Lars K. S.;Isham, Brett
关于激光束的旋转（螺旋）相位前部和轨道角动量（OAM）的最新发现应用于无线电频率，并对无线电OAM系统进行了全面的模拟。我们发现，通过使用矢量电场感应电和磁性三轴天线，可以通过单个点的局部测量值明确地估计无线光束中的OAM，假设是理想的（无噪声）条件，并且梁轴已知。此外，我们表明，常规的天线模式优化方法可以应用于生成圆形圆形阵列以增强其方向性。
Recent discoveries concerning rotating (helical) phase fronts and orbital angular momentum (OAM) of laser beams are applied to radio frequencies and comprehensive simulations of a radio OAM system are performed. We find that with the use of vector field-sensing electric and magnetic triaxial antennas, it is possible to unambiguously estimate the OAM in radio beams by local measurements at a single point, assuming ideal (noiseless) conditions and that the beam axis is known. Furthermore, we show that conventional antenna pattern optimization methods can be applied to OAM-generating circular arrays to enhance their directivity.