HYBRID RADIO FREQUENCY / INDUCTIVE LOOP ANTENNA
First Claim
1. An apparatus comprising:
- a ground plane;
a radio-frequency radiator, the radiator offset from the ground plane by at least a first distance;
a feed post conductively connected to the radiator;
a multi-turn inductive loop offset from the ground plane and either in conductive contact with the radiator or electrically coupled with the radiator and not in conductive contact with the radiator, wherein;
the multi-turn inductive loop, the radiator, the ground plane, and the feed post together form a planar inverted-F antenna (PIFA) configured to produce and receive electro-magnetic radio-frequency signals, andthe inductive loop is configured to inductively couple with a near-field magnetic field.
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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).
163 Citations
32 Claims
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1. An apparatus comprising:
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a ground plane; a radio-frequency radiator, the radiator offset from the ground plane by at least a first distance; a feed post conductively connected to the radiator; a multi-turn inductive loop offset from the ground plane and either in conductive contact with the radiator or electrically coupled with the radiator and not in conductive contact with the radiator, wherein; the multi-turn inductive loop, the radiator, the ground plane, and the feed post together form a planar inverted-F antenna (PIFA) configured to produce and receive electro-magnetic radio-frequency signals, and the inductive loop is configured to inductively couple with a near-field magnetic field. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A method comprising:
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a) providing a radio-frequency radiator; b) mounting the radio-frequency radiator to a first surface of a first housing component; c) providing a multi-turn inductive loop; and d) placing the multi-turn inductive loop such that the multi-turn inductive loop is electrically coupled with the radiator. - View Dependent Claims (29, 30)
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31. (canceled)
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32. (canceled)
Specification