RFID tag, antenna, and printer system
First Claim
Patent Images
1. A printer system, comprising:
- a roll of labels, wherein each label comprises a radio frequency identification (RFID) tag;
an RFID reader system comprising;
an RFID reader; and
an RFID antenna module coupled to the RFID reader, wherein the RFID antenna module comprises;
two electrical conductors, each having a first end and a second end;
a resistive element coupled to the second ends of the two conductors; and
a phase splitter coupled between the first ends of the two conductors and the RFID reader; and
a print head, wherein the RFID antenna is between the roll of labels and the print head.
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Abstract
An RFID label with embedded tag is passed through an RFID antenna in a printer system, where the RFID antenna allows a roll of such labels to pass in close proximity to the antenna and still allow each individual RFID tag to be read and/or programmed. The RFID antenna module is formed with a transmission line coupled to an RF phase splitter, where in one embodiment, the transmission line is formed from two parallel conductive strips.
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Citations
23 Claims
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1. A printer system, comprising:
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a roll of labels, wherein each label comprises a radio frequency identification (RFID) tag; an RFID reader system comprising; an RFID reader; and an RFID antenna module coupled to the RFID reader, wherein the RFID antenna module comprises; two electrical conductors, each having a first end and a second end; a resistive element coupled to the second ends of the two conductors; and a phase splitter coupled between the first ends of the two conductors and the RFID reader; and a print head, wherein the RFID antenna is between the roll of labels and the print head. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An RFID antenna module for use in a printer system for printing RFID labels, the system including an RFID reader coupled to the RFID antenna module and RFID labels passing in close proximity to the RFID antenna module, the RFID antenna module comprising:
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a dielectric layer; a transmission line located above a top surface of the dielectric layer, wherein the transmission line has a first and a second end; a resistor coupled to the first end of the transmission line; and a phase splitter coupled to the second end of the transmission line. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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Specification