Rfid tag for an object having metallic portions, tag coupler and method thereof
First Claim
1. A radio frequency identification (RFID) tag comprising:
- a substantially planar and electrically non-conductive substrate having a mounting surface;
a substantially planar and electrically conductive member mounted to said mounting surface, said conductive member having;
an inner section comprising;
one or more windings;
an inner section free end extending from one of said windings;
an outer section, substantially surrounding said inner section, said outer section comprising;
one or more windings;
an outer section free end extending from one of said windings;
and a connecting section connecting said inner section to said outer section;
a conductive bridge spanning from said inner section free end to said outer section free end;
and at least one dielectric strip disposed between said conductive bridge and said conductive member to thereby form one or more capacitive sections along said at least one dielectric strip.
7 Assignments
0 Petitions
Accused Products
Abstract
An RFID tag (20) has an electrically non-conductive substrate (22) with a mounting surface (24), an electrically conductive member (26), a conductive bridge (28), a dielectric strip (30), and a semiconductor device (32). The member (26) is mounted to the surface (24) and has an inner section (38), an outer section (40) and a connecting section (42). The section (38) has windings (44) and a free end (46) extending from one of the windings. The section (40) substantially surrounds the section (38) and has a winding (50) and a free end (52) that extends from a portion (54) of the winding (50) towards the section (38). A segment (56) of the section (42) is disposed between the ends (46, 52). The bridge (28) spans from the end (46) to the end (52). With the strip (30) disposed between the bridge (28) and the member (26), capacitive sections are thereby formed along the strip (30).
17 Citations
38 Claims
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1. A radio frequency identification (RFID) tag comprising:
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a substantially planar and electrically non-conductive substrate having a mounting surface;
a substantially planar and electrically conductive member mounted to said mounting surface, said conductive member having;
an inner section comprising;
one or more windings;
an inner section free end extending from one of said windings;
an outer section, substantially surrounding said inner section, said outer section comprising;
one or more windings;
an outer section free end extending from one of said windings;
and a connecting section connecting said inner section to said outer section;
a conductive bridge spanning from said inner section free end to said outer section free end;
and at least one dielectric strip disposed between said conductive bridge and said conductive member to thereby form one or more capacitive sections along said at least one dielectric strip. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A tag coupler for a radio frequency identification (REID) tag housed within a product carrier, said tag coupler comprising:
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an electrically conductive member having;
an inner section comprising;
one or more windings;
an inner section free end extending from one of said windings;
an outer section, substantially surrounding said inner section, said outer section comprising;
one or more windings;
an outer section free end extending from one of said windings;
and a connecting section connecting said inner section to said outer section;
a conductive bridge spanning from said inner section free end to said outer section free end;
and at least one dielectric strip disposed between said conductive bridge and said conductive member to thereby form one or more capacitive sections along said at least one dielectric strip. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24)
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25. A method of forming a radio frequency identification (RFID) tag, said method comprising:
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providing a substantially planar and electrically non-conductive substrate having a mounting surface;
forming a substantially planar and electrically conductive member on said mounting surface, said conductive member having;
an inner section comprising;
one or more windings;
an inner section free end extending from one of said windings;
an outer section, substantially surrounding said inner section, said outer section comprising;
one or more windings;
an outer section free end extending from one of said windings;
said inner section being connected via a connecting section to said outer section, said connecting section being disposed between said inner section free end and said outer section free end;
attaching at least one dielectric strip onto one or more portions of said conducive member; and
printing a conductive bridge spanning from said inner section free end to said outer section free end onto said at least one dielectric strip;
wherein said at least one dielectric strip disposed between said conductive bridge and said conductive member to thereby form one or more capacitive sections along said at least one dielectric strip. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification