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Saltenna LLC surface wave antenna technology: Transmission through ultimate obscuration – a Faraday cageBattery-operated 2.45-GHz transmitting antenna (l=12 cm) capable of sending video signals from inside a locked 90-dB isolation Faraday cage May be used in 5G applications and for broadband radio transmission through:
Communication underwater using surface wavesWhat Are We Trying To Do? Communicate/image underwater and through sea surface How Is It Done Today? Ultrasound and visible frequencies are used What is New in Your Approach? Use surface electromagnetic waves for communication and imaging underwater. Using surface wave antennas, we achieve broadband RF communications between underwater assets over distances. We propose to breach the seawater barrier for UAV to UUV communication, since the surface wave is present both above and below the seawater surface. If you can communicate, you can image underwater
Laboratory testing: 2.45 GHz transmission through seawaterskin depth at 2.45 GHz is 3 mm Surface wave RF technology works when laser communication fails!Field testing at NSWC Panama CityTesting of Saltenna LLC underwater antennas at the NSWC Panama City facilities (water salinity 2.8-3.2%) Testing results confirm our modelCompact design of a 2MHz SEW antennaMeasured/Projected PerformanceBased on estimates for a flat seawater surface from K. A. Michalski and J. R. Mosig, “The Sommerfeld half-space problem revisited: From radio frequencies and Zenneck waves to visible light and Fano modes,” J. Electromagn. Waves Appl., vol. 30, pp. 1–42, 2016.
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