Abstract: In this paper, a planar double-layer PCB uniform circular array (UCA) system is designed to generate orbital angular momentum (OAM) beams. The UCA system consists of planar directional ...

Abstract: A calibration method based on orbital angular momentum (OAM) is proposed for gain-phase errors in uniform circular array (UCA). The idea of the method is to construct an objective function ...

The drive was quiet. I put on the electronic music I liked but, feeling anxious, soon turned it off. I drove through to morning, along endless chain-link fences, escaping the Arctic Circle to find the ...

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Alex Foster’s first novel is about a futuristic high-speed travel system with troubling global consequences. Alex Foster’s debut novel, “Circular Motion,” is precisely 360 pages long, an appropriately ...

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