Signal Transmission Potentially Enabling Secret Communications

Xiaoran Fan (Inventor), Yanyong Zhang (Inventor), Wade Trappe (Inventor), Richard Howard (Inventor)

Research output: Innovation


Simple illustration of secret communication which first aligns phases at Bob and then perturb phases elsewhere. Invention Summary: Directional signal transmission and/or reception is critical to the advancement of developing confidential communication systems. In secret communication, beamforming has been used to increase the signal-to-noise ratio (SNR) at the intended receiver while decreasing the SNR for a potential eavesdropper. This system assumes that the eavesdropper’s location is known, as well as possessing shadow areas where ani-eavesdropping capabilities are ineffective. Researchers at Rutgers University have developed a wireless power transfer system that aligns the transmitters’ phases at the target; thus, the energy is precisely focused at the target. The system then shows phase dithering at the transmitters can further make the RSS at eavesdroppers become undecodable. When coupled with active feedback, the system allows formation of an energy ball in any desired location, guaranteeing that there is only a small amount of RF everywhere else. This system allows transfer of information to a device without exposing user information to an eavesdropper. Market Applications: Secret/confidential communication Secure wireless communication Advantages: More precise control of the phase of transmitters Does not expose information to eavesdropper Intellectual Property & Development Status: Patent pending. Available for licensing and/or research collaboration.
Original languageEnglish (US)
StatePublished - Apr 2019


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