Protection for wireless links at train carriage rooftops against jamming and interference
AssigneeAlstom Transport Technologies
InventorJUHA PETAJAJARVI
Life of this patent
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Abstract
Systems and methods provide harden wireless intra-vehicular communication against jamming and/or interference. A vehicle comprises a carriage top, an antenna mounted on an outer-vehicle side of the carriage top, and radio frequency absorbing material positioned proximate to the antenna and at least a portion of the carriage top near the antenna.
Claims20
A vehicle, comprising:
- a carriage top;
- an antenna mounted on an outer-vehicle side of the carriage top;
- and
- radio frequency absorbing material positioned proximate to the antenna and at least a portion of the carriage top.
A vehicle consist comprising:
- a first vehicle having a first carriage top, a first antenna mounted on an outer-vehicle side of the first carriage top, and first radio frequency absorbing material positioned proximate to the first antenna and at least a portion of the first carriage top;
- and
- a second vehicle having a second carriage top, a second antenna mounted on an outer-vehicle side of the second carriage top, and second radio frequency absorbing material positioned proximate to the second antenna and at least a portion of the second carriage top.
A method of hardening a wireless radio frequency communication system, on a first vehicle of a consist of vehicles, against a source of jamming or interference located within an interior region of any vehicle of the consist of vehicles, the method comprising:
- installing radio frequency absorbing material proximate to an antenna of the wireless radio frequency communication system that is mounted on an outer-vehicle side of a carriage top of the first vehicle,
- wherein the radio frequency absorbing material is configured to absorb electromagnetic energy over a responsive radio frequency bandwidth of the antenna.
Dependencies are inferred from the claim text.