US 11,721,901 B2
Radio frequency communication device and its use for a transportation system
Leung Chiu, Pok Fu Lam (HK); and Jing Jung Tang, Pok Fu Lam (HK)
Assigned to Logistics and Supply Chain MultiTech R&D Centre Limited, Pok Fu Lam (HK)
Filed by Logistics and Supply Chain MultiTech R&D Centre Limited, Pok Fu Lam (HK)
Filed on Dec. 31, 2020, as Appl. No. 17/139,046.
Prior Publication US 2022/0209409 A1, Jun. 30, 2022
Int. Cl. H01Q 1/22 (2006.01); H01Q 7/00 (2006.01); H01Q 9/28 (2006.01)
CPC H01Q 7/00 (2013.01) [H01Q 1/2208 (2013.01); H01Q 9/285 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A radio frequency communication device, comprising:
a supporting member, through which the device is arranged to attach to a cylindrical structure; and
a conductive planar portion arranged to removably secure on the supporting member, the conductive planar portion includes a conductive loop being electrically connected in between the conductive planar portion and the supporting member, the conductive planar portion arranged to generate a radio frequency radiation;
wherein the supporting member includes multiple flat portions arranged to fit the radio frequency device onto the cylindrical structure, the feeder includes a pair of vertical feeding plates extending, in parallel, from the conductive planar portion, and a transformer is provided on the supporting member, such that when the conductive planar portion is secured to the supporting member by fasteners, the pair of vertical feeding plates are forced to electrically contact with the transformer by mechanical force provided by the fasteners.