Radio frequency identification (RFID) tag antenna design
First Claim
1. A hybrid radio frequency identification (RFID) tag, comprising:
- circuitry comprising one or more passive RFID elements and one or more semi-active RFID elements operable to transmit and receive communications to and from one or more RFID tag tracking systems;
a battery coupled to the one or more semi-active elements;
a first antenna coupled to the passive RFID elements and to the semi-active RFID elements, the first antenna comprising a shape that defines a first open area and a second open area; and
wherein the circuitry is positioned within one of the first and second open areas defined by the shape of the first antenna and the battery is positioned within the other of the first and second open areas defined by the shape of the first antenna.
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Accused Products
Abstract
In certain embodiments, a hybrid radio frequency identification (RFID) tag includes circuitry, a battery, and a first antenna. The circuitry includes one or more passive RFID elements and one or more semi-active RFID elements operable to transmit and receive communications to and from one or more RFID tag tracking systems. The battery is coupled to the one or more semi-active elements. The first antenna is coupled to the passive RFID elements and to the semi-active RFID elements, the first antenna comprising a shape that defines a first open area and a second open area. The circuitry is positioned within one of the first and second open areas defined by the shape of the first antenna, and the battery is positioned within the other of the first and second open areas defined by the shape of the first antenna.
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Citations
36 Claims
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1. A hybrid radio frequency identification (RFID) tag, comprising:
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circuitry comprising one or more passive RFID elements and one or more semi-active RFID elements operable to transmit and receive communications to and from one or more RFID tag tracking systems; a battery coupled to the one or more semi-active elements; a first antenna coupled to the passive RFID elements and to the semi-active RFID elements, the first antenna comprising a shape that defines a first open area and a second open area; and wherein the circuitry is positioned within one of the first and second open areas defined by the shape of the first antenna and the battery is positioned within the other of the first and second open areas defined by the shape of the first antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for forming a radio frequency identification (RFID) tag, comprising:
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providing circuitry comprising one or more passive RFID elements and one or more semi-active RFID elements operable to transmit and receive communications to and from one or more RFID tag tracking systems; providing a battery coupled to the one or more semi-active elements; providing a first antenna coupled to the passive RFID elements and to the semi-active RFID elements, the first antenna comprising a shape that defines a first open area and a second open area; and wherein the circuitry is positioned within one of the first and second open areas defined by the shape of the first antenna and the battery is positioned within the other of the first and second open areas defined by the shape of the first antenna. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A hybrid radio frequency identification (RFID) tag, comprising:
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circuitry comprising one or more passive RFID elements and one or more semi-active RFID elements operable to transmit and receive communications to and from one or more RFID tag tracking systems; a battery coupled to the one or more semi-active elements; a first antenna coupled to the passive RFID elements and to the semi-active RFID elements, the first antenna comprising one of the following shapes; a substantially S-shape;
ora substantially W-shape or M-shape; wherein; the shape of the first antenna defines a first open area and a second open area; and wherein the circuitry is positioned within one of the first and second open areas defined by the shape of the first antenna and the battery is positioned within the other of the first and second open areas defined by the shape of the first antenna, a portion of the first antenna substantially separating on a common plane the first and second open areas defined by the shape of the first antenna; the RFID tag further comprises a second antenna in one of the first and second open areas defined by the first antenna, the second antenna comprising an LF antenna. - View Dependent Claims (31, 32, 33, 34, 35, 36)
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Specification