CN106898874A - A kind of watch bracelet antenna for wearable wireless system - Google Patents
A kind of watch bracelet antenna for wearable wireless system Download PDFInfo
- Publication number
- CN106898874A CN106898874A CN201710243686.0A CN201710243686A CN106898874A CN 106898874 A CN106898874 A CN 106898874A CN 201710243686 A CN201710243686 A CN 201710243686A CN 106898874 A CN106898874 A CN 106898874A
- Authority
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- China
- Prior art keywords
- watch bracelet
- antenna
- watchband
- gap
- watch
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Support Of Aerials (AREA)
- Electric Clocks (AREA)
Abstract
The invention provides a kind of watch bracelet antenna for wearable wireless system, including watch bracelet and the feeder equipment being arranged on the watch bracelet, the material of the watch bracelet is metal material, and at least one gap is provided with the watch bracelet;The feeder equipment includes micro-strip medium substrate, the metal being arranged on micro-strip medium substrate ground and feed probes, and the feed probes are connected in the gap of the watch bracelet through metal ground and micro-strip medium substrate and plugging.Watch bracelet antenna of the invention is easy for installation, and structure is firm, and price is low, lightweight, small volume, alleviates user and uses burden.The present invention realizes the radiation of antenna by means of watch bracelet structure, increases the range of choice of wearable wireless system antenna.
Description
Technical field
The present invention relates to wireless communication technology field, especially, it is related to a kind of wrist-watch for wearable wireless system
Watchband antenna.
Background technology
In the prior art, common antenna system is widely present in the systems such as radar, communication, navigation, and its antenna is usual
Metal material, or metal and solid dielectric mixed structure.In wearable field, associated antenna realizes way in recent years both at home and abroad
Footpath mainly includes following several respects:
First, the miniaturized planar antenna containing nano silver wire, specific pattern is arranged as first by template by nano silver wire,
Then layer overlay liquid polymers, after thing solidification to be polymerized, forms the elastomeric material comprising expected pattern, the pattern material energy
The radiation assembly with paster antenna is constituted, by adjusting its shape, operating frequency of antenna is controlled.
2nd, Metal buttonses or metal buckle antenna, size are small, with certain radianting capacity, frequency more long for wavelength
Rate system higher, its electric size is just advantageous.
3rd, the logo antenna of sewing material, has the mark (logo) on paper studies case and bag, clothes as antenna in recent years
Wearable system radiation and reception instrument are carried out, such as the antenna of the LV LV shapes that South Korea delivers for 2015 uses tool
There is the original sewing material of material substitution of certain electric conductivity, keep trade mark shape and size constant.Somebody's research uses apple
(Apple) the notched apple of company, using fibrous material, also obtain certain radiation and reception energy as antenna
Power.
4th, deformed Oscillators antenna, loop antenna of metal material etc., small-sized, in accomplishing system, with the hand of current main flow
Machine antenna is similar to, generally smaller than antenna for mobile phone.
5th, microstrip antenna, metal flat fractal antenna etc., using the principles such as bending, self similarity and method, compress micro- as far as possible
Tape base plate thickness, reduces antenna size and weight.
In terms of the informationization of sport footwear, the correlation technique for occurring in recent years and studying includes:Nike (Nike) is public
The automatic function of tying the shoelace of department, installs motion perception sensor, automatic control system, and auxiliary user uses.Li Ning (LiNing)
Company cooperates with millet company, develops sole embedded chip and small-sized miniature electronic systems.The public affairs such as Adidas (Adidas)
Department is implanted into chip in sole, monitors the daily motion conditions of user.Ling Youduo companies have in terms of wearable information-based, intellectuality
Studied, but be and be related to the electromagnetic radiation of watch bracelet to apply with receiving.
In intelligent watch watchstrap field of antenna, it is typically with bending element antenna form, is contracted by the way that straight line bent
Small size, antenna is installed within Watch dail plate.Or, a part for watch bracelet is replaced with antenna structure and material
Change, realize the design of dial plate outside antenna, occur but without the technical scheme that feeder equipment is set in the gap of watchband.
The above-mentioned equal Shortcomings of the antenna applied in the prior art, are embodied in:Cloth fabric antenna is conductive due to it
Property is weak, causes radianting capacity weak, and radiation gain is low, and overall efficiency is not high, and energy loss is larger;Deformed Oscillators antenna and ring day
Line, and the common drawback of button antenna and belt fastener antenna etc. be that physical size is small, electric size is limited, weaker, spoke of penetrating direction
Radio energy is penetrated and receives not enough to concentrate;Microstrip antenna, fractal antenna etc., for user's request, volume is still not
Enough small, it is also not very convenient to install, and because it is that peripheral hardware protrudes structure, fixed fixing is limited, and volume takes inevitable.Fortune
The information system of dynamic dress ornament manufacturer exploitation at present, otherwise only it is monitored and shows, without wireless transmission function;Make
Microminiature antenna is used, performance indications have much room for improvement.Conventional aerial generally needs extra installation to radiate and feed structure, and user is come
Say, be additional part, the convenience for using and succinct degree have been short of.
The content of the invention
It is existing to solve it is an object of the invention to provide a kind of watch bracelet antenna for wearable wireless system
The radianting capacity of antenna is weak in the wearable wireless system of technology or human body central site network system, gain is low, directionality is poor asks
Topic.
To achieve the above object, the invention provides a kind of watch bracelet antenna for wearable wireless system, bag
Include as the watch bracelet and the feeder equipment being arranged on the watch bracelet of antenna body, the material of the watch bracelet is
Metal material, is provided with least one gap on the watch bracelet;The feeder equipment includes micro-strip medium substrate, is arranged at
Metal ground and feed probes on the micro-strip medium substrate, the feed probes are through metal ground and micro-strip medium
Substrate and plugging is connected in the gap of the watch bracelet.
Preferably, the both sides of the watch bracelet width are arranged with multiple gaps in parallel.
Preferably, the middle setting of the watch bracelet width has multiple gaps.
Preferably, the width of the watch bracelet is 10~20mm.
Preferably, the gap area of the watch bracelet accounts for the 1/4~1/2 of the watch bracelet area.
Preferably, the size of the micro-strip medium substrate is 10mm × 10mm × 1.2mm, Jie of the micro-strip medium substrate
Electric constant is 2.2.
Preferably, the feed probes are welded in any one gap on the watch bracelet.
Compared to prior art, the invention has the advantages that:
A kind of watch bracelet antenna for wearable wireless system of the invention, including watch bracelet and feed are filled
Put, the material of watch bracelet is metal material, and multiple gaps are provided with watch bracelet;Feeder equipment includes micro-strip medium base
Plate, metal ground and feed probes, feed probes are connected through metal ground and micro-strip medium substrate with watch bracelet.It is of the invention
Watch bracelet antenna, easy for installation, structure is firm, and price is low, lightweight, small volume, alleviates user and uses burden.Using hand
Table watchband structure realizes the radiation of antenna, increases the range of choice of wearable wireless system antenna;Using watch bracelet as day
Line main body, significantly increases antenna size, changes the electrical length of antenna, and radianting capacity is strong, and radiation gain is high, energy loss compared with
It is small.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to figure, the present invention is further detailed explanation.
Brief description of the drawings
The accompanying drawing for constituting the part of the application is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate, for explaining the present invention, not constitute inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 a are a kind of structural representations of watch bracelet antenna for wearable wireless system of the invention;
Fig. 1 b are the structural representations of a metallic grid watchband with a plurality of parallel slit;
Fig. 1 c are the reflection coefficient curves of antenna when the distributing point of feeder equipment is placed in diverse location in Fig. 1 a and Fig. 1 b;
Fig. 2 is the antenna reflection coefficient curve under watchband antenna configuring condition different from human body;
The radiation pattern of watch bracelet antenna when Fig. 3 watchbands broadband is 10mm, 15mm and 20mm;
Fig. 4 a are radiation direction (Phi=0 ° &Theta of the three kinds of different watch bracelet antennas of air band gap in 2.46GHz
0°-360°);
Fig. 4 b are radiation direction (Phi=90 ° & of the three kinds of different watch bracelet antennas of air band gap in 2.46GHz
Theta 0°-360°);
Fig. 4 c are radiation direction (Theta=90 ° & of the three kinds of different watch bracelet antennas of air band gap in 2.46GHz
Phi 0°-360°);
Fig. 5 a are the directional diagrams that three kinds of watchband antennas of different shapes are realized;
Fig. 5 b are the structural representation structure charts of short gap watchband;
Fig. 5 c are the structural representation structure charts of long gap watchband;
Fig. 6 a are watchband and skin full contact, part contact and leave the two-dimensional directional figure (Phi=in the case of human body
0°&Theta 0°-360°);
Fig. 6 b are watchband and skin full contact, part contact and leave the far-field pattern (Phi=in the case of human body
90°);
Fig. 6 c are watchband and skin full contact, part contact and leave the two-dimensional directional figure (Theta=in the case of human body
90°&Phi 0°-360°);
Fig. 7 is the actual measurement of antenna and artificial reflections system when distributing point is placed in dial plate the right front, dial plate right side centre position
Number curve;
Fig. 8 a are actual measurement and emulation two-dimensional radiation directional diagram (Phi=0 ° &Theta of the watch bracelet antenna in 2.46GHz
0°-360°);
Fig. 8 b are actual measurement and emulation far field radiation pattern (Phi=90 ° &Theta of the watch bracelet antenna in 2.46GHz
0°-360°);
Fig. 8 c be watch bracelet antenna 2.46GHz actual measurement and emulation directional diagram (0 ° of Theta=90 °s &Phi-
360°);
Wherein, 1, watchband, 11, gap, 01, day shuttle watchband, 02, grid watchband, 03, short gap watchband, 04, long gap table
Band, 2, feeder equipment, 21, micro-strip medium substrate, 22, metal ground, 23, feed probes, 3, dial plate.
Specific embodiment
Embodiments of the invention are described in detail below in conjunction with accompanying drawing, but the present invention can be limited according to claim
Fixed and covering multitude of different ways is implemented.
A kind of watch bracelet antenna for wearable wireless system of the invention, including as the wrist-watch of antenna body
Watchband 1 and the feeder equipment 2 being arranged on watch bracelet, the material of watch bracelet is metal material, is provided with watch bracelet
At least one gap 11;Feeder equipment 2 include micro-strip medium substrate 21, be arranged on micro-strip medium substrate metal ground 22, with
And feed probes 23, feed probes 23 are through metal ground 22 and micro-strip medium substrate 21 and plug the gap for being connected to watch bracelet
In 11.
In a kind of specific embodiment, the both sides of the width of watch bracelet 1 are arranged with multiple gaps 11 in parallel.
In a kind of specific embodiment, the middle setting of the width of watch bracelet 1 has multiple gaps 11.
In a kind of specific embodiment, the width of watch bracelet 1 is 10~20mm.
In a kind of specific embodiment, the area of gap 11 of watch bracelet 1 accounts for the 1/4~1/2 of watch bracelet area.
In a kind of specific embodiment, the size of micro-strip medium substrate is 10mm × 10mm × 1.2mm, micro-strip medium
The dielectric constant of substrate is 2.2.
In a kind of specific embodiment, feed probes 23 are welded in any one gap 11 on watch bracelet.
In the present invention, Fig. 1 a are a kind of structural representations of the watch bracelet antenna for wearable wireless system.
Wherein, the use of watchband 1 day shuttle watchband 01, the distributing point of feeder equipment may be disposed on the diverse location of watchband, specific feed
Point is located at the P1 points of day shuttle watchband the right centre position rear or distributing point is located at day shuttle watchband the right centre position front portion P2 points
Place or distributing point are located in the middle of the right side of dial plate 3 at P3 points.Fig. 1 b are a metallic grid watchbands with a plurality of parallel slit
Structural representation, wherein, distributing point is located in the middle of the right of grid watchband 02 at P4 points.Fig. 1 c are that the distributing point of feeder equipment is put
In Fig. 1 a and Fig. 1 b during diverse location antenna reflection coefficient curve.As seen from the figure:When distributing point is located in the middle of watchband the right
When at the P1 points of position rear, at the anterior P2 points in watchband the right centre position and in the middle of dial plate right side at P3 points, antenna it is humorous
Vibration frequency is respectively 2.11GHz, 1.60GHz and 2.46GHz.For distributing point is located at P4 points, it has three resonant frequencies,
Respectively 0.66GHz, 1.17GHz and 2.66GHz.The reflectance factor of antenna changes with the change of feed placement, above-mentioned humorous
Vibration frequency meets the demand of wearable wireless system.If system has particular requirement, distributing point for frequency or other specification
The other positions on watchband can be arranged on.If additionally, watchband shape is different, can in a similar fashion realize feed.
Table 1 gives frequency matching characteristic of the distributing point in the case of diverse location.Wherein, the phase at 2.46GHz
A width of to band 77.8%, this frequency is located at the open shared frequency range of industry, scientific research and medical treatment (ISM band).
Frequency matching characteristic of the watchband antenna of table 1 under different feed placements
Fig. 2 is the antenna reflection coefficient curve under watchband antenna configuring condition different from human body, respectively watch bracelet day
The watchband of line is taken off with wrist full contact, part contact and by wrist-watch from arm and wrist.As shown in Figure 2, three kinds
In the case of the resonant frequency of watch bracelet antenna be increased to 2.46GHz and 4.09GHz, use of the invention successively from 1.69GHz
Can obtain different humorous from position of human body relation by adjusting antenna in the watch bracelet antenna of wearable wireless system
Vibration frequency, so as to be applied to different field.
Fig. 3 is the radiation pattern of watch bracelet antenna when watchband broadband is 10mm, 15mm and 20mm.Can by Fig. 3
Know, aerial radiation direction only shows small difference in the case of this three kinds, thus watch bracelet antenna of the invention is in table
Bandwidth be 10~20mm in the case of can meet use requirement.
Further, the gap quantity on watchband can produce influence to the antenna pattern of inventive antenna, with Fig. 1 b's
Based on watchband structure, in the case where watchband girth is constant, gap area is respectively the knot of watch bracelet area 1/2 and 1/4
Radiation pattern corresponding to structure.Wherein, it is contemplated that the forearm of people had both been likely to be at perpendicular to ground in real life
Attitude (when such as standing), it is also possible in the attitude (keeping flat on the table) parallel to ground, therefore, 4a, Fig. 4 b and
Fig. 4 c provide three sectional drawings of two-dimensional radiation directional diagram, reflect the radiation event of the antenna total space.Fig. 4 a are air band gap
Radiation direction (Phi=0 ° &Theta 0 ° -360 °) of the three kinds of different watch bracelet antennas in 2.46GHz;Fig. 4 b are air bands
Radiation direction (Phi=90 ° &Theta 0 ° -360 °) of the three kinds of different watch bracelet antennas of gap in 2.46GHz;Fig. 4 c are empty
Radiation direction (Theta=90 ° &Phi 0 ° -360 °) of the three kinds of different watch bracelet antennas of gas band gap in 2.46GHz.From figure
As can be seen that antenna has main lobe wider above the back of the hand, disclosure satisfy that arm is big required for often in active state
Scope covers demand.
Fig. 5 a are the directional diagrams that three kinds of watchband antennas of different shapes are realized, two of which watchband structure is Fig. 5 b and figure
Short gap watchband and the structural representation of long gap watchband that 5c is respectively shown in, wherein, short gap watchband 03 and long gap watchband
04 width is 20mm, and gap width is the distance between 1mm, adjacent two gap for 6mm, the gap of short gap watchband 03
Length is 5mm, and the gap length of long gap watchband 04 is 8.5mm;Another watchband is grid watchband 02, and grid watchband 02 has
Some gap amounts are all more than the gap amount of short gap watchband 03 and long gap watchband 04.From Fig. 5 a, using short gap watchband
03 and long gap watchband 04 watchband antenna gain it is only more slightly higher than watchband antenna using grid watchband 02, but due to grid table
Difference with 02 structure and the CURRENT DISTRIBUTION difference that causes, cause the major lobe of directional diagram to point to the difference for having about 45 °.
Fig. 6 a are watchband and skin full contact, part contact and leave the two-dimensional directional figure (Phi=in the case of human body
0°&Theta 0°-360°);Fig. 6 b are watchband and skin full contact, part contact and leave the far field direction in the case of human body
Figure (Phi=90 °);Fig. 6 c are watchband and skin full contact, part contact and leave the two-dimensional directional figure in the case of human body
(0 ° -360 ° of Theta=90 °s &Phi).As shown in Fig. 6 a, Fig. 6 b and Fig. 6 c, antenna pattern is in 2.4GHz-2.5GHz frequencies
In the range of gain substantially in 5dBi or so, the 2.4GHz-2.5GHz frequency ranges of covering industry, scientific research and medical treatment so that this antenna
Wireless navigation be can be applied to positioning, spatial electromagnetic collection of energy and charging, human body central site network and digital multimedia, Internet of Things
With the field such as smart city, smart home, motion and medical science and health data collection and real-time Transmission.
In the present embodiment, the watchband antenna with day shuttle watchband as prototype is tested in microwave dark room.Use
Used as feed basic structure, its material is 2.2 for dielectric constant to one piece of small microstrip medium substrate of 10mm × 10mm × 1.2mm
ArlonDi880.The key instrument for using is Anritsu37369A vector network analyzers (VNA), and watch bracelet antenna exists
Naturally tested in the case of wearing, a width of 40MHz-6.0GHz of calibration tape.As shown in fig. 7, being that distributing point is placed in the dial plate right side
The actual measurement of antenna and artificial reflections coefficient curve when side front, dial plate right side centre position.
The test of watch bracelet radiation pattern is carried out in microwave dark room has used human body hand and arm model
Effect, horizontal media turntable and vector network analyzer coordinate, and obtain radiation characteristic.Using ultra wide band ridged horn antenna as auxiliary
Help emission tool.Fig. 8 a are actual measurement and emulation two-dimensional radiation directional diagram (Phi=0 ° & of the watch bracelet antenna in 2.46GHz
Theta 0°-360°);Fig. 8 b are actual measurement and emulation far field radiation pattern (Phi=of the watch bracelet antenna in 2.46GHz
90°&Theta 0°-360°);Fig. 8 c are actual measurement and emulation directional diagram (Theta=90 ° & of the watch bracelet antenna in 2.46GHz
Phi 0°-360°).Actual measurement and simulated radiation of the watch bracelet antenna in 2.46GHz are given in above-mentioned Fig. 8 a, Fig. 8 b and Fig. 8 c
Directional diagram, test data is coincide preferably with simulation result, demonstrates the validity of watch bracelet antenna of the present invention.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (7)
1. a kind of watch bracelet antenna for wearable wireless system, it is characterised in that including the hand as antenna body
Table watchband (1) and the feeder equipment (2) being arranged on the watch bracelet, the material of the watch bracelet is metal material, institute
State and be provided with watch bracelet at least one gap (11);The feeder equipment (2) including micro-strip medium substrate (21), be arranged at
Metal ground (22) and feed probes (23) on the micro-strip medium substrate, the feed probes (23) are through the metal
The gap (11) that ground (22) and micro-strip medium substrate (21) and plugging are connected to the watch bracelet is interior.
2. watch bracelet antenna according to claim 1, it is characterised in that the two of watch bracelet (1) width
Side is arranged with multiple gaps (11) in parallel.
3. watch bracelet antenna according to claim 1, it is characterised in that in watch bracelet (1) width
Between be provided with multiple gaps (11).
4. watch bracelet antenna according to claim 1, it is characterised in that the width of the watch bracelet (1) is 10~
20mm。
5. watch bracelet antenna according to claim 1, it is characterised in that gap (11) face of the watch bracelet (1)
Product accounts for the 1/4~1/2 of the watch bracelet area.
6. watch bracelet antenna according to claim 1, it is characterised in that the size of the micro-strip medium substrate is 10mm
× 10mm × 1.2mm, the dielectric constant of the micro-strip medium substrate is 2.2.
7. watch bracelet antenna according to claim 1, it is characterised in that the feed probes (23) are welded on the hand
In any one gap (11) on table watchband.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201710243686.0A CN106898874B (en) | 2017-04-14 | 2017-04-14 | Watch watchband antenna for wearable wireless system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201710243686.0A CN106898874B (en) | 2017-04-14 | 2017-04-14 | Watch watchband antenna for wearable wireless system |
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Publication Number | Publication Date |
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CN106898874A true CN106898874A (en) | 2017-06-27 |
CN106898874B CN106898874B (en) | 2023-03-31 |
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CN201710243686.0A Active CN106898874B (en) | 2017-04-14 | 2017-04-14 | Watch watchband antenna for wearable wireless system |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110429373A (en) * | 2018-05-01 | 2019-11-08 | 苹果公司 | Antenna module for watchband |
CN112909536A (en) * | 2021-01-20 | 2021-06-04 | 维沃移动通信有限公司 | Watch (watch) |
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US5589840A (en) * | 1991-11-05 | 1996-12-31 | Seiko Epson Corporation | Wrist-type wireless instrument and antenna apparatus |
CN104466363A (en) * | 2014-12-11 | 2015-03-25 | 深圳市信维通信股份有限公司 | NFC antenna structure applied to wearable device and intelligent watch |
CN204241848U (en) * | 2014-10-28 | 2015-04-01 | 中兴通讯股份有限公司 | A kind of wrist-watch |
CN206639929U (en) * | 2017-04-14 | 2017-11-14 | 中国人民解放军国防科学技术大学 | A kind of watch bracelet antenna for wearable wireless system |
-
2017
- 2017-04-14 CN CN201710243686.0A patent/CN106898874B/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5589840A (en) * | 1991-11-05 | 1996-12-31 | Seiko Epson Corporation | Wrist-type wireless instrument and antenna apparatus |
CN204241848U (en) * | 2014-10-28 | 2015-04-01 | 中兴通讯股份有限公司 | A kind of wrist-watch |
CN104466363A (en) * | 2014-12-11 | 2015-03-25 | 深圳市信维通信股份有限公司 | NFC antenna structure applied to wearable device and intelligent watch |
CN206639929U (en) * | 2017-04-14 | 2017-11-14 | 中国人民解放军国防科学技术大学 | A kind of watch bracelet antenna for wearable wireless system |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110429373A (en) * | 2018-05-01 | 2019-11-08 | 苹果公司 | Antenna module for watchband |
CN110429373B (en) * | 2018-05-01 | 2022-11-08 | 苹果公司 | Antenna assembly for a watchband |
CN112909536A (en) * | 2021-01-20 | 2021-06-04 | 维沃移动通信有限公司 | Watch (watch) |
CN112909536B (en) * | 2021-01-20 | 2023-08-22 | 维沃移动通信有限公司 | Watch with a watch body |
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CN106898874B (en) | 2023-03-31 |
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