Hybrid radio frequency/inductive loop charger
First Claim
1. An apparatus comprising:
- a ground plane;
a radio-frequency radiator;
a feed post conductively connected to the radio-frequency radiator; and
an inductive charging system including a multi-turn inductive charging loop configured to couple electrically with the radio-frequency radiator, wherein the multi-turn inductive charging loop is configured to inductively couple with an electromagnetic field to provide power to the inductive charging system, wherein the multi-turn inductive charging loop is separated from the radio-frequency radiator by a first gap and the multi-turn inductive charging loop is electrically coupled with the radio-frequency radiator and not in conductive contact with the radio-frequency radiator, and wherein the multi-turn inductive charging loop, the radio-frequency radiator, the ground plane, and the feed post together form at least in part an antenna configured to produce and receive electromagnetic radio-frequency signals, wherein the antenna is a mono-pole, inverted-F antenna, or planar inverted-F antenna.
1 Assignment
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Accused Products
Abstract
Biometric monitoring devices, including various technologies that may be implemented in such devices, are discussed herein. Additionally, techniques, systems, and apparatuses are discussed herein for providing a hybrid antenna including an RF radiator and an electrically coupled inductive loop. The hybrid antenna is capable of providing both RF and induction functionality, e.g., radio frequency transmission/reception capabilities for Bluetooth as well as near-field-communications (NFC) functionality via the inductive loop. The inductive loop may be in conductive contact with the RF radiator or may be inductively coupled with the RF radiator and not in conductive contact with the RF radiator. The inductive loop may act as a planar element of a planar inverted-F antenna (PIFA).
64 Citations
25 Claims
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1. An apparatus comprising:
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a ground plane; a radio-frequency radiator; a feed post conductively connected to the radio-frequency radiator; and an inductive charging system including a multi-turn inductive charging loop configured to couple electrically with the radio-frequency radiator, wherein the multi-turn inductive charging loop is configured to inductively couple with an electromagnetic field to provide power to the inductive charging system, wherein the multi-turn inductive charging loop is separated from the radio-frequency radiator by a first gap and the multi-turn inductive charging loop is electrically coupled with the radio-frequency radiator and not in conductive contact with the radio-frequency radiator, and wherein the multi-turn inductive charging loop, the radio-frequency radiator, the ground plane, and the feed post together form at least in part an antenna configured to produce and receive electromagnetic radio-frequency signals, wherein the antenna is a mono-pole, inverted-F antenna, or planar inverted-F antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 22, 23, 24, 25)
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21. The apparatus of dam 1, wherein the radio-frequency radiator and the multi-turn inductive charging loop are formed from the same electrically conductive trace.
Specification