CN118073817A - Wearable electronic device - Google Patents
Wearable electronic device Download PDFInfo
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- CN118073817A CN118073817A CN202211466021.3A CN202211466021A CN118073817A CN 118073817 A CN118073817 A CN 118073817A CN 202211466021 A CN202211466021 A CN 202211466021A CN 118073817 A CN118073817 A CN 118073817A
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- antenna radiator
- nfc
- side plate
- relay antenna
- electronic device
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/273—Adaptation for carrying or wearing by persons or animals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/385—Transceivers carried on the body, e.g. in helmets
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/77—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for interrogation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/385—Transceivers carried on the body, e.g. in helmets
- H04B2001/3861—Transceivers carried on the body, e.g. in helmets carried in a hand or on fingers
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Support Of Aerials (AREA)
Abstract
The application provides a wearable electronic device, comprising: the wearable body, the radio frequency signal source and the first NFC antenna radiator. The radio frequency signal source is arranged in the wearable body. The first NFC antenna radiator is arranged in the wearable body and is electrically connected with the radio frequency signal source. The first NFC antenna radiator comprises a main body radiating part and an extension radiating part which are connected in a bending mode. The main body radiating part is used for transmitting NFC signals towards a first direction under the excitation of the radio frequency signal source. The extended radiating portion is used for transmitting the NFC signal towards the second direction under the excitation of the radio frequency signal source. Wherein the second direction intersects the first direction. The wearable electronic equipment provided by the application is simple and convenient to use.
Description
Technical Field
The application relates to the technical field of electronics, in particular to wearable electronic equipment.
Background
Near Field Communication (NFC) is an emerging technology, devices using the NFC technology can exchange data in a situation of being close to each other, and the devices are integrated and evolved by a non-contact Radio Frequency Identification (RFID) and interconnection technology, and applications such as mobile payment, electronic ticketing, access control, mobile identity recognition, anti-counterfeiting and the like are realized by integrating functions of an inductive card reader, an inductive card and point-to-point Communication on a single chip and utilizing a mobile terminal. In the related art, the wearing equipment using the NFC technology is complex in use mode in application scenes such as mobile payment, electronic ticketing, entrance guard, mobile identity recognition and anti-counterfeiting, and the appearance of the wearing equipment is easy to damage.
Disclosure of Invention
The wearable electronic equipment is simple and convenient in use mode.
In one aspect, the present application provides a wearable electronic device comprising:
A wearable body;
The radio frequency signal source is arranged in the wearable body; and
The first NFC antenna radiator is arranged in the wearable body and is electrically connected with the radio frequency signal source, the first NFC antenna radiator comprises a main body radiating part and an extension radiating part which are connected in a bending mode, the main body radiating part is used for transmitting NFC signals along a first direction under the excitation of the radio frequency signal source, the extension radiating part is used for transmitting NFC signals along a second direction under the excitation of the radio frequency signal source, and the second direction is intersected with the first direction.
On the other hand, the application also provides an NFC communication system, which comprises an NFC reading device and the wearable electronic equipment, wherein the NFC reading device comprises a second NFC antenna radiator, and the second NFC antenna radiator is used for receiving NFC signals emitted by the main body radiating part and/or the extension radiating part.
The electronic equipment comprises the NFC reading device and the wearable electronic equipment, wherein the wearable electronic equipment comprises the wearable body, the radio frequency signal source and the first NFC antenna radiator, and the first NFC antenna radiator is arranged in the wearable body and is electrically connected with the radio frequency signal source, the first NFC antenna radiator comprises a main body radiating part and an extension radiating part which are connected in a bending mode, the main body radiating part can emit NFC signals towards a first direction under the excitation of the radio frequency signal source, the extension radiating part can emit NFC signals towards a second direction under the excitation of the radio frequency signal source, the second direction is intersected with the first direction, and communication of the first direction and the second direction can be realized between the wearable electronic equipment and the NFC reading device, so that operation is simplified (for example, the rotation angle of a wrist can be reduced, the collision between the wearable electronic equipment and the NFC reading device can be reduced, the service life of the wearable electronic equipment can be prolonged, and the user experience can be improved.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described.
Fig. 1 is a schematic structural diagram of an NFC communication system according to an embodiment of the present application;
Fig. 2 is a schematic structural diagram of a wearable electronic device according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a first NFC antenna radiator of the wearable electronic device shown in fig. 2, including a main body radiating portion and an extended radiating portion;
Fig. 4 is a schematic plan view of a main radiating portion and an extension radiating portion of the first NFC antenna radiator shown in fig. 3;
fig. 5 is a schematic structural diagram of the wearable electronic device shown in fig. 3 further including a first relay antenna radiator;
FIG. 6 is a schematic structural view of the wearable electronic device of FIG. 5 further including a header and a wristband, the header including a display screen and a housing;
fig. 7 is a schematic structural diagram of a main body radiating portion of the wearable electronic device shown in fig. 6 transmitting NFC signals toward a display screen;
fig. 8 is a schematic structural diagram of the extended radiating portion of the wearable electronic device shown in fig. 7 transmitting NFC signals towards the third side plate of the housing;
Fig. 9 is a schematic plan view of a first NFC antenna radiator, a first relay antenna radiator, and a second relay antenna radiator in the wearable electronic device shown in fig. 4;
fig. 10 is a schematic circuit diagram of the wearable electronic device shown in fig. 9, in which a first relay antenna radiator is electrically connected to a matching circuit;
fig. 11 is another circuit schematic of the wearable electronic device shown in fig. 9, in which the first relay antenna radiator is electrically connected to the matching circuit.
Detailed Description
The technical scheme provided by the application is clearly and completely described below with reference to the accompanying drawings. It should be apparent that the described embodiments of the application are only some embodiments, but not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive effort, based on the embodiments described herein, fall within the scope of the application.
Reference in the specification to "an embodiment," "an implementation" means that a particular feature, structure, or characteristic described in connection with the embodiment or implementation may be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art will appreciate explicitly and implicitly that the described embodiments of the application may be combined with other embodiments.
The terms first, second and the like in the description and in the claims of the application and in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order; the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an NFC communication system 1000 according to an embodiment of the present application, and fig. 2 is a schematic structural diagram of a wearable electronic device 100 according to an embodiment of the present application. The NFC communication system 1000 includes a wearable electronic device 100 and an NFC reading device 200. The wearable electronic device 100 may be a watch, a bracelet, a finger ring, or the like. The wearable electronic device 100 in the following embodiments takes a wristwatch as an example. The wearable electronic device 100 comprises a wearable body 10, a radio frequency signal source 20 and a first NFC antenna radiator 30. The rf signal source 20 and the first NFC antenna radiator 30 are both disposed in the wearable body 10. The NFC reading device 200 may be an access card reader, a bus ticket vending machine, a ticket checker, a mobile terminal device, etc. capable of supporting NFC communication. The NFC reading device 200 comprises a second NFC antenna radiator 40.
In one possible embodiment, the first NFC antenna radiator 30 is used as a transmitting end of the NFC communication system 1000, and the second NFC antenna radiator 40 is used as a receiving end of the NFC communication system 1000. In other words, the first NFC antenna radiator 30 of the wearable electronic device 100 is used to transmit NFC signals. The second NFC antenna radiator 40 of the NFC reading device 200 is configured to receive NFC signals. The first NFC antenna radiator 30 may be a radiator for supporting transmitting NFC signals or a radiator for supporting transceiving NFC signals. The second NFC antenna radiator 40 may be a radiator for supporting reception of NFC signals or a radiator for supporting transceiving of NFC signals. Of course, in other possible embodiments, the first NFC antenna radiator 30 may also be used as a receiving end of the NFC communication system 1000, and the second NFC antenna radiator 40 may also be used as a transmitting end of the NFC communication system 1000; or the first NFC antenna radiator 30 is used as a receiving end of the NFC communication system 1000 and is also used as a transmitting end of the NFC communication system 1000, and the second NFC antenna radiator 40 is used as a receiving end of the NFC communication system 1000 and is also used as a transmitting end of the NFC communication system 1000. In the following embodiments, the first NFC antenna radiator 30 is taken as a transmitting end of the NFC communication system 1000, and the second NFC antenna radiator 40 is taken as a receiving end of the NFC communication system 1000, unless explicitly stated otherwise.
The first NFC antenna radiator 30 and the second NFC antenna radiator 40 are both conductors. Alternatively, the first NFC antenna radiator 30 and the second NFC antenna radiator 40 may each include a wire winding in a ring shape. In other words, the first NFC antenna radiator 30 and the second NFC antenna radiator 40 may be coil antenna radiators. The material of the first NFC antenna radiator 30 and the material of the second NFC antenna radiator 40 may be the same or different. Optionally, the material of the first NFC antenna radiator 30 may be metal, alloy, composite metal, composite polymer conductive material, or the like. The material of the second NFC antenna radiator 40 may be metal, alloy, composite metal, composite polymer conductive material, etc. For example, the material of the first NFC antenna radiator 30 may be copper, silver, copper alloy, aluminum alloy, carbon fiber, graphene, conductive plastic, or the like. The material of the second NFC antenna radiator 40 may be copper, silver, copper alloy, aluminum alloy, carbon fiber, graphene, conductive plastic, etc.
Referring to fig. 2 and 3, the rf signal source 20 may be an rf chip. The radio frequency signal source 20 is used to generate an electrical current. The first NFC antenna radiator 30 is electrically connected to the radio frequency signal source 20. The first NFC antenna radiator 30 may be directly electrically connected to the radio frequency signal source 20, or may be indirectly electrically connected to the radio frequency signal source. The first NFC antenna radiator 30 is configured to receive and radiate a current generated by the radio frequency signal source 20. Specifically, the first NFC antenna radiator 30 includes a main body radiating portion 301 and an extension radiating portion 302 that are connected in a bending manner, where the main body radiating portion 301 is configured to emit an NFC signal along a first direction under the excitation of the radio frequency signal source 20, and the extension radiating portion 302 is configured to emit an NFC signal along a second direction under the excitation of the radio frequency signal source 20, where the second direction intersects the first direction. The body radiating portion 301 is directly connected to the extension radiating portion 302. One of the body radiation portion 301 and the extension radiation portion 302 includes a feeding point. In the embodiment of the present application, the main body radiating portion 301 includes a feeding point as an example. Of course, in other embodiments, the feed point may be located on the extended radiating portion 302. The feed point is electrically connected to the rf signal source 20 to draw current. In one possible embodiment, the bend angle between the body radiating portion 301 and the extension radiating portion 302 may be greater than or equal to 30 ° and less than or equal to 150 °. The body radiator 301 may transmit the NFC signal in the first direction after receiving the current generated by the rf signal source 20. In other words, the radiation field direction of the main body radiation portion 301 is along the first direction. The extended radiating portion 302 may transmit the NFC signal in the second direction after receiving the current generated by the rf signal source 20. In other words, the radiation field direction of the extended radiation portion 302 is along the second direction. The first direction is related to the structure, position of the body radiating portion 301. The second direction is related to the structure, position of the extended radiating portion 302. The angle between the first direction and the second direction is approximately equal to the bending angle between the main radiating portion 301 and the extending radiating portion 302. In the case of not explicitly described, the first direction may refer to the Z-axis direction in the drawing, and the second direction may refer to the X-axis direction in the drawing, which will not be described in detail later. Because the main body radiation portion 301 is connected with the extension radiation portion 302 in a bending manner, the radiation field direction of the main body radiation portion 301 is different from the radiation field direction of the extension radiation portion 302, so that the radiation field area of the wearable electronic device 100 can be expanded, the communication performance of the wearable electronic device 100 is improved, the wrist is prevented from rotating at a large angle when the wearable electronic device 100 is used after being worn, and the use mode of the wearable electronic device 100 is simplified.
Alternatively, referring to fig. 3 and 4, the radiation area of the main body radiation portion 301 may be greater than the radiation area of the extension radiation portion 302. For example, the radiating surface 310 of the body radiating portion 301 may have an area larger than that of the radiating surface of the extension radiating portion 302. Wherein the first direction is perpendicular to the radiating surface 310 of the body radiating portion 301. The second direction is perpendicular to the radiating surface of the extended radiating portion 302. In this embodiment, the main radiating portion 301 may be used as a main radiating portion of the first NFC antenna radiator 30, and the extended radiating portion 302 may be used as a secondary radiating portion of the first NFC antenna radiator 30. In an application scenario where the wearable electronic device 100 and the NFC reading device 200 are opposite in the first direction, communication with the NFC reading device 200 may be performed through an electromagnetic field generated by the body radiating portion 301. In the case where the wearable electronic device 100 is opposite to the NFC reading device 200 along the second direction and other possible application scenarios, the electromagnetic field generated by the extended radiating portion 302 may be used to communicate with the NFC reading device 200. Of course, in other embodiments, the extension radiating portion 302 may serve as a primary radiating portion of the first NFC antenna radiator 30, and the main radiating portion 301 may serve as a secondary radiating portion of the first NFC antenna radiator 30.
The second NFC antenna radiator 40 is configured to receive NFC signals emitted by the main body radiating portion 301 and/or the extension radiating portion 302. In one possible application scenario, the wearable electronic device 100 is opposite to the NFC reading device 200 along the first direction, and at this time, the second NFC antenna radiator 40 may receive the NFC signal emitted by the main body radiating portion 301. In another possible application scenario, the wearable electronic device 100 is opposite to the NFC reading device 200 along the second direction, and at this time, the second NFC antenna radiator 40 may receive the NFC signal emitted by the extended radiating portion 302. In another possible application scenario, the wearable electronic device 100 is opposite to the NFC reading device 200 along the third direction, and at this time, the second NFC antenna radiator 40 may receive the NFC signal emitted by the main body radiating portion 301 and the NFC signal emitted by the extension radiating portion 302. Wherein the third direction is different from the first direction and the second direction.
The electronic device provided by the application comprises an NFC reading device 200 and a wearable electronic device 100, wherein the wearable electronic device 100 comprises a wearable body 10, a radio frequency signal source 20 and a first NFC antenna radiator 30, and the first NFC antenna radiator 30 is arranged in the wearable body 10 and is electrically connected with the radio frequency signal source 20, the first NFC antenna radiator 30 comprises a main body radiating part 301 and an extension radiating part 302 which are connected in a bending manner, the main body radiating part 301 can emit NFC signals towards a first direction under the excitation of the radio frequency signal source 20, the extension radiating part 302 can emit NFC signals towards a second direction under the excitation of the radio frequency signal source 20, and the second direction is intersected with the first direction, so that communication between the wearable electronic device 100 and the NFC reading device 200 in the first direction and communication in the second direction can be realized, and thus, in application scenarios such as mobile payment, electronic ticketing, access control, mobile identity identification, anti-counterfeiting and the like can be simplified, collision between the wearable electronic device 100 and the NFC reading device 200 can be reduced, the service life of the wearable electronic device 100 can be prolonged, and the user experience can be improved.
Further, as shown in fig. 5, the wearable electronic device 100 further includes a first relay antenna radiator 50. The first relay antenna radiator 50 is a conductor. The shape of the first relay antenna radiator 50 may be circular, square, rectangular, triangular, other polygonal, various special shapes, etc. The material of the first relay antenna radiator 50 may be metal, alloy, composite metal, composite polymer conductive material, or the like. The first relay antenna radiator 50 may include a wire winding in a loop shape. In other words, the first relay antenna radiator 50 may be a coil antenna radiator. The first relay antenna radiator 50 and the extension radiating portion 302 are disposed opposite to each other along the second direction, and the first relay antenna radiator 50 is coupled to the extension radiating portion 302. Wherein the orthographic projection of the first relay antenna radiator 50 along the second direction may cover the extended radiating portion 302; or an orthographic projection of the first relay antenna radiator 50 in the second direction may be located on the extended radiating portion 302. In other words, the area of the radiation surface of the first relay antenna radiator 50 may be larger than the area of the radiation surface of the extension radiation portion 302; or the area of the radiating surface of the first relay antenna radiator 50 may be smaller than or equal to the area of the radiating surface of the extension radiating portion 302. The first relay antenna radiator 50 is spaced apart from the extension radiating portion 302 along the second direction, and a coupling gap is provided between the first relay antenna radiator 50 and the extension radiating portion 302. In one possible embodiment, the coupling gap between the first relay antenna radiator 50 and the extended radiating portion 302 may be greater than or equal to 1mm and less than or equal to 10mm. The first relay antenna radiator 50 is used to amplify the NFC signal emitted by the extended radiating portion 302. In other words, the first relay antenna radiator 50 can receive and retransmit the NFC signal transmitted by the extension radiating portion 302, and the NFC signal retransmitted by the first relay antenna radiator 50 is enhanced compared to the NFC signal received by the first relay antenna radiator 50.
In the wearable electronic device 100 provided in this embodiment, by disposing the first relay antenna radiator 50 in the second direction, which is the radiation direction of the extension radiating portion 302, since the first relay antenna radiator 50 is coupled with the extension radiating portion 302, the first relay antenna radiator 50 can receive and amplify the NFC signal emitted by the extension radiating portion 302, so that the first relay antenna radiator 50 forms the gain antenna radiator of the extension radiating portion 302, the NFC signal in the second direction can be enhanced, and the communication distance of the wearable electronic device 100 in the second direction can be prolonged.
Referring to fig. 6 and 7, the wearable electronic device 100 may be a wristwatch. The wearable body 10 includes a gauge outfit 101 and a wristband 102 attached to the gauge outfit 101. The watch head 101 and the watch band 102 may be integrally connected, detachably connected, or non-detachably connected. The main body radiation portion 301 and the extension radiation portion 302 are both disposed in the gauge outfit 101. In one possible embodiment, header 101 includes a display 110 and a housing 112. The display 110 may be a straight screen or a curved screen. The display 110 is used to display time information. An accommodating space is formed between the display 110 and the housing 112. The main body radiation portion 301 and the extension radiation portion 302 are both located in the accommodating space between the display screen 110 and the housing 112. The first relay antenna radiator 50 may be located in the accommodating space between the display screen 110 and the housing 112, may be located on the housing 112, or may be located on the display screen 110. The first direction is perpendicular to the display surface of the header 101. The display surface of the header 101 may be understood as the surface of the display 110. It will be appreciated that the first direction may be directed toward the display screen 110, or the first direction may be directed toward a side facing away from the display screen 110. The second direction is perpendicular to the first direction. In one possible embodiment, the second direction may refer to the X-axis direction in the drawings. In another possible embodiment, the second direction may refer to the Y-axis direction in the drawings. In this embodiment, the main body radiation portion 301 and the extension radiation portion 302 are bent approximately at right angles.
For the wearable electronic device 100 with the display screen 110, the display screen 110 is easy to wear and scratch when in contact with and collision with the NFC reading device 200, and the service life of the display screen 110 is reduced, while the first direction is perpendicular to the display surface of the gauge outfit 101, and the second direction is perpendicular to the first direction, namely, the radiation field direction of the main body radiation portion 301 is approximately perpendicular to the radiation field direction of the extension radiation portion 302, so that the first NFC antenna radiator 30 has a larger radiation field, various NFC communication scenes such as buses, subways, entrance guard and the like can be met, contact and collision between the display screen 110 and the NFC reading device 200 can be reduced, and the display screen 110 and the appearance of the wearable electronic device 100 are protected.
In one possible embodiment, the first direction is directed toward the display 110. In other words, the radiation surface 310 of the main body radiation portion 301 may be parallel or approximately parallel to the surface of the display screen 110. Alternatively, the body radiating part 301 is provided at the rear surface of the display screen 110, or the body radiating part 301 may be spaced apart from the display screen 110 in the first direction. Since the display screen 110 faces the external space after the wearable electronic device 100 is worn, by pointing the first direction toward the display screen 110, radiation to the user when performing NFC communication after the wearable electronic device 100 is worn on the wrist of the user can be reduced.
Referring to fig. 7 and 8, the housing 112 includes a bottom plate and a peripheral plate. The backplane is opposite the display 110. The peripheral board is connected between the display 110 and the bottom board. The peripheral side panels include a first side panel 1120, a second side panel 1121, a third side panel 1122, and a fourth side panel 1123 connected in sequence. The first side plate 1120 is opposite the third side plate 1122. The second side plate 1121 is opposite the fourth side plate 1123. The wristband 102 includes a first wristband 120 attached to a first side plate 1120 and a second wristband 121 attached to a third side plate 1122. The extended radiating portion 302 emits an NFC signal toward the first side plate 1120 or the third side plate 1122.
In one possible embodiment, when the wearable electronic device 100 is worn on the wrist of the user, the first side plate 1120 faces the user and the third side plate 1122 faces the outside. In other words, after the wearable electronic device 100 is worn on the wrist of the user, the first side plate 1120 is oriented in the same direction as the inner side of the wrist of the user, and the third side plate 1122 is oriented in the same direction as the outer side of the wrist of the user. Wherein the extended radiating portion 302 emits the NFC signal toward the third side plate 1122. In this embodiment, when the wearable electronic device 100 communicates with the NFC reading device 200, the third side plate 1122 and the outer side of the wrist of the user face the same direction, and the extended radiating portion 302 emits the NFC signal toward the third side plate 1122, so that the extended radiating portion 302 is easier to approach the NFC reading device 200, and the user can realize the NFC functions such as mobile payment, electronic ticketing, access control, mobile identity recognition, anti-counterfeiting, and the like without rotating the wrist or rotating a small angle. Of course, in other embodiments, the extended radiating portion 302 may also emit NFC signals toward the first side plate 1120. It can be appreciated that, in the present embodiment, the second direction is approximately along the line direction between the first side plate 1120 and the third side plate 1122, and when the extended radiating portion 302 emits the NFC signal toward the third side plate 1122, the second direction is directed by the first side plate 1120 to the third side plate 1122; when the extended radiating portion 302 emits the NFC signal toward the first side plate 1120, the second direction is directed toward the first side plate 1120 by the third side plate 1122.
When the extended radiating portion 302 emits the NFC signal toward the first side board 1120, the first relay antenna radiator 50 is disposed on the first side board 1120; when the extended radiating portion 302 emits the NFC signal toward the third side plate 1122, the first relay antenna radiator 50 is disposed on the third side plate 1122. In one possible embodiment, the third side plate 1122 is made of metal. At least a portion of the third side panel 1122 forms the first relay antenna radiator 50. Of course, in other possible embodiments, the material of the first side plate 1120 may be a conductive material, and at least a portion of the first side plate 1120 may form the first relay antenna radiator 50. By disposing the first relay antenna radiator 50 on the first side plate 1120 or the third side plate 1122, the first relay antenna radiator 50 can be prevented from occupying the internal space of the wearable electronic device 100, and the first relay antenna radiator 50 can be directly radiated toward the external space, thereby reducing the loss of NFC signals.
Further, as shown in fig. 9, the wearable electronic device 100 may further include a second relay antenna radiator 60. The second relay antenna radiator 60 is a conductor. The shape of the second relay antenna radiator 60 may be circular, square, rectangular, triangular, other polygonal, various special shapes, etc. The material of the second relay antenna radiator 60 may be metal, alloy, composite metal, composite polymer conductive material, or the like. The second relay antenna radiator 60 may include a wire winding in a loop shape. In other words, the second relay antenna radiator 60 may be a coil antenna radiator. The second relay antenna radiator 60 is disposed opposite to the main body radiating portion 301 along the first direction, and the second relay antenna radiator 60 is coupled to the main body radiating portion 301. Wherein, the orthographic projection of the second relay antenna radiator 60 along the first direction may cover the main body radiation part 301; or an orthographic projection of the second relay antenna radiator 60 in the first direction may be located on the main body radiating part 301. In other words, the area of the radiation surface of the second relay antenna radiator 60 may be larger than the area of the radiation surface 310 of the main body radiation part 301; or the area of the radiation surface of the second relay antenna radiator 60 may be smaller than or equal to the area of the radiation surface 310 of the main body radiation part 301. The second relay antenna radiator 60 is spaced apart from the main body radiating part 301 along the second direction, and a coupling gap is provided between the second relay antenna radiator 60 and the main body radiating part 301. In one possible embodiment, the coupling gap between the second relay antenna radiator 60 and the body radiator 301 may be greater than or equal to 1mm and less than or equal to 10mm. The second relay antenna radiator 60 is for amplifying the NFC signal emitted from the main body radiating portion 301. In other words, the second relay antenna radiator 60 can receive and retransmit the NFC signal transmitted by the main body radiator 301, and the NFC signal retransmitted by the second relay antenna radiator 60 is enhanced compared to the NFC signal received by the second relay antenna radiator 60.
In the wearable electronic device 100 provided in this embodiment, the second relay antenna radiator 60 is disposed in the radiation direction of the main body radiation portion 301, that is, in the first direction, because the second relay antenna radiator 60 is coupled with the main body radiation portion 301, the second relay antenna radiator 60 can receive and amplify the NFC signal emitted by the main body radiation portion 301, so that the second relay antenna radiator 60 forms a gain antenna radiator of the main body radiation portion 301, which can enhance the NFC signal in the first direction and prolong the communication distance of the wearable electronic device 100 in the first direction.
Referring to fig. 10 and 11, the wearable electronic device 100 further includes a matching circuit 70. The matching circuit 70 is electrically connected to the first relay antenna radiator 50. The matching circuit 70 is used to adjust the impedance of the first repeater antenna radiator 50 so that the first repeater antenna radiator 50 is in a resonant mode.
The matching circuit 70 may include one or more of capacitance, inductance, resistance, and the like. The impedance of the first relay antenna radiator 50 is adjusted by designing the matching circuit 70, so that the first relay antenna radiator 50 works in a resonant mode, and the detuning coefficient x 1 of the first relay antenna radiator 50 is equal to or close to 1, so that the gain of the first relay antenna radiator 50 can be improved under the condition that the quality factor Q 1 of the first relay antenna radiator 50 is fixed. Wherein the operating frequency of the first relay antenna radiator 50 when in the resonant mode may be 13.56MHz or close to 13.56MHz.
In one possible implementation, as shown in fig. 10, wearable electronic device 100 may include at least two matching circuits 70. One end of the at least one matching circuit 70 is electrically connected to one end of the first relay antenna radiator 50, and the other end is grounded; one end of the at least one matching circuit 70 is electrically connected to the other end of the first relay antenna radiator 50, and the other end is grounded. In this embodiment, the matching circuit 70 is only required to be designed between the first relay antenna radiator 50 and the reference ground of the wearable electronic device 100, so that the NFC performance of the wearable electronic device 100 can be improved, and the occupied space is small.
In another possible embodiment, as shown in fig. 11, the first relay antenna radiator 50 includes a wire winding in a loop shape. The wire winding includes a first free end and a second free end. The "free end" may be understood as an end point where the first relay antenna radiator 50 is not physically connected to other components. One of the first free end and the second free end is a start end of the first relay antenna radiator 50, and the other of the first free end and the second free end is a termination end of the first relay antenna radiator 50. One end of the matching circuit 70 is electrically connected to the first free end, and the other end of the matching circuit 70 is electrically connected to the second free end. In other words, the beginning end of the wire winding may form a first free end, the ending end of the wire winding may form a second free end, and the matching circuit 70 may be electrically connected between the beginning end of the wire winding and the ending end of the wire winding. In this embodiment, the matching circuit 70 is only designed between the two ends of the first relay antenna radiator 50, so that the NFC performance of the wearable electronic device 100 can be improved, and the occupied space is small.
In the embodiment of the present application, the matching circuit 70 of the second relay antenna radiator 60 can be designed with reference to the matching circuit 70 of the first relay antenna radiator 50, and the description thereof is omitted herein.
Wherein the quality factor of the first relay antenna radiator 50 is greater than 1. The quality factor of the first relay antenna radiator 50 may be used to represent the amount of electromagnetic energy in the resonant circuit formed by the first relay antenna radiator 50 as a ratio of the energy lost per cycle. The larger the quality factor of the first relay antenna radiator 50 is, the better the first relay antenna radiator 50 has to forward NFC signals, and the longer the transmission distance of NFC signals can be increased. The quality factor of the first relay antenna radiator 50 is Q 1,
L1＝μN2S/d
Wherein L 1 is the inductance of the first relay antenna radiator 50; ω is the angular frequency of the first relay antenna radiator 50; r 1 is the resistance of the first relay antenna radiator 50. Mu is the magnetic permeability of the first relay antenna radiator 50, N is the number of turns of the coil of the first relay antenna radiator 50, S is the area surrounded by the coil of the first relay antenna radiator 50, and d is the width of the coil of the first relay antenna radiator 50. It will be appreciated that L 1 is related to the width of the first relay antenna radiator 50, the permeability of the first relay antenna radiator 50, and the spacing of the first relay antenna radiator 50. R 1 is related to the resistivity of the first relay antenna radiator 50, the length of the first relay antenna radiator 50, and the cross-sectional area of the first relay antenna radiator 50. Alternatively, by designing the width of the first relay antenna radiator 50, the pitch of the first relay antenna radiator 50, the length of the first relay antenna radiator 50, and the cross-sectional area of the first relay antenna radiator 50, the quality factor of the first relay antenna radiator 50 can be controlled by selecting the material of the first relay antenna radiator 50, or the like. The quality factor of the first relay antenna radiator 50 is greater than 1. In one possible embodiment, the quality factor of the first relay antenna radiator 50 is greater than or equal to 10.
The gain of the first relay antenna radiator 50 is a 1,
Wherein x 1 is a detuning coefficient of the first relay antenna radiator 50, and is used for characterizing the detuning degree of the working frequency and the resonant frequency of the first relay antenna radiator 50; j is an imaginary number, j 2 = -1. In an ideal situation, by tuning the matching circuit 70, it can be considered that the first relay antenna radiator 50 is not detuned, i.e. the first relay antenna radiator 50 operates at the resonance frequency, where the detuning coefficient x 1 is 1. The absolute value of a 1 is equal to the quality factor Q 1. Therefore, when the quality factor Q 1 is greater than 1, the absolute value of a 1 is also greater than 1, so that the NFC signal forwarded by the first relay antenna radiator 50 is enhanced compared to the NFC signal received by the first relay antenna radiator 50. In practical applications, the NFC signal has leakage, loss, etc. during the transmission process, and the first relay antenna radiator 50 cannot be guaranteed to be in an ideal state, so when Q 1 is less than or equal to 1, the amplifying effect of the first relay antenna radiator 50 on the NFC signal cannot be guaranteed.
The features mentioned in the description, the claims and the drawings may be combined with one another at will as far as they are relevant within the scope of the application. While embodiments of the present application have been shown and described above, it should be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and alternatives to the above embodiments may be made by those skilled in the art within the scope of the application, which is also to be regarded as being within the scope of the application.
Claims (10)
1. A wearable electronic device, comprising:
A wearable body;
The radio frequency signal source is arranged in the wearable body; and
The first NFC antenna radiator is arranged in the wearable body and is electrically connected with the radio frequency signal source, the first NFC antenna radiator comprises a main body radiating part and an extension radiating part which are connected in a bending mode, the main body radiating part is used for transmitting NFC signals along a first direction under the excitation of the radio frequency signal source, the extension radiating part is used for transmitting NFC signals along a second direction under the excitation of the radio frequency signal source, and the second direction is intersected with the first direction.
2. The wearable electronic device of claim 1, further comprising a first relay antenna radiator disposed opposite the extended radiating portion along the second direction, the first relay antenna radiator coupled with the extended radiating portion, the first relay antenna radiator configured to amplify NFC signals transmitted by the extended radiating portion.
3. The wearable electronic device of claim 2, wherein the wearable body comprises a gauge outfit and a watchband connected to the gauge outfit, the main radiating portion and the extended radiating portion are both disposed in the gauge outfit, the first direction is perpendicular to a display surface of the gauge outfit, and the second direction is perpendicular to the first direction.
4. A wearable electronic device according to claim 3, wherein the header comprises a display screen for displaying time information and a housing, the first direction being directed towards the display screen.
5. The wearable electronic device of claim 4, wherein the housing comprises a bottom plate and a peripheral side plate, the bottom plate is opposite to the display screen, the peripheral side plate is connected between the display screen and the bottom plate, the peripheral side plate comprises a first side plate, a second side plate, a third side plate and a fourth side plate which are sequentially connected, the first side plate is opposite to the third side plate, the second side plate is opposite to the fourth side plate, the watchband comprises a first watchband connected to the first side plate and a second watchband connected to the third side plate, and the extended radiating portion emits NFC signals towards the first side plate or the third side plate.
6. The wearable electronic device of claim 5, wherein the first relay antenna radiator is disposed on the first side plate when the extended radiating portion transmits NFC signals toward the first side plate; when the extended radiating portion emits an NFC signal toward the third side plate, the first relay antenna radiator is disposed on the third side plate.
7. The wearable electronic device of any of claims 1-6, further comprising a second relay antenna radiator disposed opposite the body radiator along the first direction, the second relay antenna radiator coupled with the body radiator, the second relay antenna radiator configured to amplify NFC signals transmitted by the body radiator.
8. The wearable electronic device of any of claims 2-6, further comprising a matching circuit electrically connected to the first relay antenna radiator, the matching circuit configured to adjust an impedance of the first relay antenna radiator to place the first relay antenna radiator in a resonant mode.
9. The wearable electronic device of any of claims 2-6, wherein the quality factor of the first relay antenna radiator is greater than 1.
10. An NFC communication system, comprising an NFC reading device and a wearable electronic device according to any of claims 1 to 9, wherein the NFC reading device comprises a second NFC antenna radiator, and the second NFC antenna radiator is configured to receive an NFC signal emitted by the main body radiating portion and/or the extension radiating portion.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211466021.3A CN118073817A (en) | 2022-11-22 | 2022-11-22 | Wearable electronic device |
| PCT/CN2023/119420 WO2024109291A1 (en) | 2022-11-22 | 2023-09-18 | Wearable electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211466021.3A CN118073817A (en) | 2022-11-22 | 2022-11-22 | Wearable electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118073817A true CN118073817A (en) | 2024-05-24 |
Family
ID=91100871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211466021.3A Pending CN118073817A (en) | 2022-11-22 | 2022-11-22 | Wearable electronic device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN118073817A (en) |
| WO (1) | WO2024109291A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015115574A1 (en) * | 2014-11-13 | 2016-05-19 | Samsung Electronics Co., Ltd. | Near field communication chip embedded in a portable electronic device and portable electronic device |
| US10374662B2 (en) * | 2015-09-04 | 2019-08-06 | Lg Electronics Inc. | Watch-type mobile terminal |
| CN110716664A (en) * | 2019-09-29 | 2020-01-21 | 维沃移动通信有限公司 | Touch screen and electronic equipment |
| CN216354807U (en) * | 2021-06-25 | 2022-04-19 | 华为技术有限公司 | NFC antenna and electronic equipment |
| CN113594695B (en) * | 2021-08-04 | 2024-05-24 | Oppo广东移动通信有限公司 | Antenna assembly and wearable device |
-
2022
- 2022-11-22 CN CN202211466021.3A patent/CN118073817A/en active Pending
-
2023
- 2023-09-18 WO PCT/CN2023/119420 patent/WO2024109291A1/en unknown
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|---|---|
| WO2024109291A1 (en) | 2024-05-30 |
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