After four years of incredulity and not-so-gentle mocking, researchers have finally proven that it's possible to simultaneously transmit multiple radio channels over exactly the same wireless frequency.
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A Novel Multi-Modal OAM Vortex Electromagnetic Wave Microstrip Array Antenna
Ultrasound-Responsive Systems as Components for Smart Materials
Are we Running out of Radio Frequency Space? - Ebuyer Blog
June, 2012
Vortex radio waves could boost wireless capacity infinitely
Are we Running out of Radio Frequency Space? - Ebuyer Blog
1107.2348 first pagliacciata_report
Real-time communication of four 50-bit data streams in parallel The
Infinite-capacity wireless vortex beams carry 2.5 terabits per second
Brandt - Superconductors and Vortices at Radio Frequency Magnetic Fields
The multiple-OAMmode Bessel vortex beam generated by the reflective
Vortex waves: possible applications for radio communications?
Generation of vector vortex wave modes in cylindrical waveguides
Vortex radio waves could boost wireless capacity infinitely
Metamaterial-based real-time communication with high information density by multipath twisting of acoustic wave