RFID device with combined reactive coupler
First Claim
Patent Images
1. An RFID device comprising:
- a pair of components; and
a combined reactive coupler electrically coupling together the components, wherein the combined reactive coupler includes;
a magnetic coupler; and
a capacitive coupler.
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Abstract
An RFID device, such as an RFID tag or label, includes a combined reactive coupler electrically coupling a transponder chip to an antenna. The combined reactive coupler includes a magnetic coupler and a capacitive coupler. The magnetic coupler and the reactive coupler may have respective coupling elements on both the interposer and on an antenna substrate.
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Citations
36 Claims
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1. An RFID device comprising:
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a pair of components; and
a combined reactive coupler electrically coupling together the components, wherein the combined reactive coupler includes;
a magnetic coupler; and
a capacitive coupler. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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13. The device of claim 5, wherein the antenna portion conductive loop is directly electrically coupled to the antenna.
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13-1. The device of claim 12, wherein the antenna and the antenna portion conductive loop are a single structure made in a single process operation.
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36. An RFID device comprising:
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an antenna portion that includes an antenna substrate, and an antenna on the antenna substrate;
an interposer mechanically coupled to the antenna portion, wherein the interposer includes a transponder chip; and
a combined reactive coupler electrically coupling together the antenna and the transponder chip, wherein the combined reactive coupler includes;
a magnetic coupler; and
a capacitive coupler;
wherein the magnetic coupler includes;
an antenna portion magnetic coupling element electrically coupled to the antenna; and
an interposer magnetic coupling element electrically coupled to the chip; and
wherein the capacitive coupler includes;
an antenna portion pair of capacitive coupling elements that are electrically coupled to the antenna;
an interposer pair of capacitive coupling elements that are electrically coupled to the transponder chip; and
a dielectric material between the pairs of capacitive coupling elements.
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Specification