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Patexia Research
Patent No. US 10522905
Issue Date Dec 31, 2019
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Patent 10522905 - Antenna for low frequency communication within a vehicle environment and low frequency communication system > Claims

  • 1. Antenna for low frequency communication within a vehicle environment, wherein said antenna comprises a flexible or semi-flexible magnetic core of at least 500 mm, wherein: said magnetic core includes a dual coil configuration comprising a multifilar coil, with several turns around the magnetic core, providing a first coil configuration for transmission capabilities and a second coil configuration for reception capabilities;the magnetic core further includes a switching element for switching between said first coil configuration and said second coil configuration, said switching element being configured to implement a time domain multiplexing over the filaments of said multifilar coil by connecting all the filaments of the coil in parallel to operate as a transmitter or all the filaments in series to operate as a receptor; andsaid antenna is configured to work at a low frequency ranging between 20 kHz to 150 kHz and configured to transmit or receive data within a communication range comprised between 1 to 40 meters.
    • 2. The antenna of claim 1, wherein said communication range is comprised between 1 and 30 meters.
    • 3. The antenna of claim 1, wherein the activation in the time domain of the multifilar coil is performed in bursts of 10-20 ms under the management of a control unit.
    • 4. The antenna of claim 1, wherein the flexible or semi-flexible magnetic core comprises a length ranging between 500 mm to 1.2 meters.
    • 5. The antenna of claim 1, wherein said flexible or semi-flexible magnetic core and multifilar coil are encapsulated in a water-resistant material.
  • 6. A low frequency communication system, comprising: an antenna with a magnetic core including a dual coil configuration comprising a multifilar coil, with several turns around the magnetic core, providing a first coil configuration for transmission capabilities and a second coil configuration for reception capabilities, and further including a switching element for switching between both of said coil configurations, wherein said switching element is configured to implement a time domain multiplexing over the filaments of said multifilar coil by connecting all the filaments of the coil in parallel to operate as a transmitter or all the filaments in series to operate as a receptor, and wherein said antenna is configured to work at a low frequency ranging between 20 kHz to 150 kHz and configured to transmit or receive data within a communication range comprised between 1 to 40 meters; anda movable support for said antenna,wherein said movable support is a vehicle and said antenna is arranged at a frontend and/or backend of the vehicle.
    • 7. The system of claim 6, wherein the antenna is configured to be arranged at the bumpers of the vehicle.
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