Encoding many channels on the same frequency through radio vorticity: first experimental test
Encoding many channels on the same frequency through radio vorticity: first experimental test
复制标题
DOI：
10.1088/1367-2630/14/3/033001
复制
发表时间：
2012-03-01
影响因子：
3.3
通讯作者：
Romanato, Filippo
中科院分区：
文献类型：
--
作者：
Tamburini, Fabrizio;Mari, Elettra;Romanato, Filippo
我们通过实验证明，在现实世界中，可以使用两束不相干无线电波（以相同频率传输但以两种不同轨道角动量状态编码）来同时传输两个独立的无线电信道。原则上，这种新颖的无线电技术允许在给定的固定带宽内实现无限数量的信道，甚至无需使用极化、多端口或密集编码技术。这为无线电科学的创新技术和无线电通信协议的全新范式铺平了道路，可能为无线电频段拥塞问题提供解决方案。
We have shown experimentally, in a real-world setting, that it is possible to use two beams of incoherent radio waves, transmitted on the same frequency but encoded in two different orbital angular momentum states, to simultaneously transmit two independent radio channels. This novel radio technique allows the implementation of, in principle, an infinite number of channels in a given, fixed bandwidth, even without using polarization, multiport or dense coding techniques. This paves the way for innovative techniques in radio science and entirely new paradigms in radio communication protocols that might offer a solution to the problem of radio-band congestion.