Patent ID: 9496605
Filing Date: 2016-11-15
CPC Classification: H01P,H01Q

Claim Text:
1. A transmission device for a near field communication device, comprising: a matching circuit; a connecting interface with a first width, for connecting an operating circuit of the near field communication device, wherein the connecting interface comprises a plurality of detachable pins to take the connecting interface off the operating circuit; a first transmission line, electrically connected between an antenna of the near field communication device and the matching circuit; and a second transmission line comprising a plurality of metal wires, electrically connected between the connecting interface and the matching circuit, comprising an increasing width portion and a constant width portion, wherein the first transmission line or the second transmission line is flexible, wherein one of the metal wires of the second transmission line is configured for grounding and has a width larger than widths of the other metal wires of the second transmission line, wherein a width of the second transmission line within the increasing width portion increases from the first width to a second width, a width of the second transmission line within the constant width portion substantially maintains the second width, and the second width is greater than and related to the first width.