Package bag with externally attached communication device

摘要

The present invention is to provide a package bag having a metal layer, wherein the metal layer is formed with a first groove and a second groove, and the second groove has a first side extending to one edge of the metal layer and a second side away from said edge and communicating vertically with a central section of a first side of the first groove. The second side of the second groove is shorter than the first side of the first groove, such that the portions of the metal layer adjacent to the first side of the first groove form two first impedance-matching portions respectively, and the two corresponding portions of the metal layer adjacent to the first groove form two second impedance-matching portions respectively. Thus, due to the impedance-matching portions, a slot antenna can be formed on the metal layer for coupling with a communication device attached thereto.

主权项

1. A package bag with an externally attached communication device, the package bag comprising:
a surface material which is a film made of plastic and is formed with an outer groove; a metal layer having a surface coated on a surface of the surface material, the metal layer being formed with a first groove and a second groove, wherein the first groove and the second groove correspond in position to the outer groove, the first groove being located adjacent to an edge of the metal layer, the second groove having a first side extending to the edge of the metal layer, the second groove further having a second side which is away from the edge of the metal layer and communicates vertically with a central section of a first side of the first groove, the second side of the second groove having a shorter length than the first side of the first groove, such that portions of the metal layer that are adjacent to the first side of the first groove forms two first impedance-matching portions respectively and two corresponding portions of the metal layer that are adjacent to the first groove form two second impedance-matching portions respectively, thus the first groove and the second groove of the metal layer jointly forming a slot antenna; a bottom material which is a film made of plastic, the bottom material having a surface coated on an opposite surface of the metal layer, the bottom material being formed with an inner groove corresponding in position to the slot antenna, wherein the surface material, the metal layer, and the bottom material are connected to form a packaging material for making the package bag; and the communication device comprising an attachment material, a conductive loop, and a communication chip, the attachment material having a larger configuration than the conductive loop, so as for the conductive loop to be arranged on the attachment material and be attached, via the attachment material, to the package bag at a position corresponding to the first groove, the conductive loop being of a hollow and symmetric shape, the conductive loop comprising two first conducting portions, two second conducting portions, two first connecting portions, and a second connecting portion, the first conducting portions corresponding in position to the first impedance-matching portions respectively, each said first conducting portion having a first end connected to a first end of a corresponding said second conducting portion, each said first conducting portion having a second end connected to a first end of a corresponding said first connecting portion, second ends of the first connecting portions being spaced apart by a first distance, the communication chip being provided at the second ends of the first connecting portions, the second conducting portions corresponding in position to the second impedance-matching portions respectively, second ends of the second conducting portions being in communication with each other via the second connecting portion, wherein, once the conductive loop is attached to the package bag, the first conducting portions do not overlap with the first impedance-matching portions, but the second conducting portions overlap, and can couple, with the second impedance-matching portions respectively, such that the communication device forms a radio frequency identification (RFID) tag on the package bag.