Invention Grant
- Patent Title: Doppler-nulling traveling-wave antenna relays for high-speed vehicular communications
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Application No.: US14572733Application Date: 2014-12-16
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Publication No.: US09294159B2Publication Date: 2016-03-22
- Inventor: Gary L. Duerksen
- Applicant: Empire Technology Development LLC
- Applicant Address: US DE Wilmington
- Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
- Current Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
- Current Assignee Address: US DE Wilmington
- Agency: Turk IP Law, LLC
- Main IPC: H04B7/14
- IPC: H04B7/14 ; H04B7/01 ; H01Q1/32 ; H01Q13/20 ; H04W84/00

Abstract:
An antenna relay system for facilitating wireless communication between mobile terminals on a high-speed rail vehicle and stationary base stations with substantially reduced Doppler shift effects comprises matched traveling wave directional antennas mounted to a high-speed rail vehicle and positioned collinearly alongside the railway. Both antennas continually transmit and receive at a fixed angle relative to the motion of the train so as to circumvent the Doppler shift. The signal transmitted or received by the stationary antenna is conducted to a nearest node for communication with an access network.
Public/Granted literature
- US20150099459A1 DOPPLER-NULLING TRAVELING-WAVE ANTENNA RELAYS FOR HIGH-SPEED VEHICULAR COMMUNICATIONS Public/Granted day:2015-04-09
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