CN105785757A - Watch antenna device and electronic watch - Google Patents
Watch antenna device and electronic watch Download PDFInfo
- Publication number
- CN105785757A CN105785757A CN201610272950.9A CN201610272950A CN105785757A CN 105785757 A CN105785757 A CN 105785757A CN 201610272950 A CN201610272950 A CN 201610272950A CN 105785757 A CN105785757 A CN 105785757A
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- Prior art keywords
- wrist
- metal frame
- antenna assembly
- watch
- cutoff circuit
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- G—PHYSICS
- G04—HOROLOGY
- G04R—RADIO-CONTROLLED TIME-PIECES
- G04R60/00—Constructional details
- G04R60/06—Antennas attached to or integrated in clock or watch 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
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
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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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electric Clocks (AREA)
- Support Of Aerials (AREA)
- Details Of Aerials (AREA)
Abstract
The invention discloses a watch antenna device and an electronic watch. The watch antenna device comprises a metal frame, a PCB and a mode separating circuit, wherein the PCB is provided with a metal layer and gaps for gap radiation between the PCB and the metal frame. The mode separating circuit is used for a radiation mode for exciting a radiation signal between the metal frame and the PCB and a degenerate mode circuit thereof and furthermore is connected between a signal input for feeding a signal to the metal frame and feeding points on the metal frame. Compared with the prior art, the watch antenna device provided by an embodiment of the invention can expand spectral bandwidth. The watch antenna device can be used as the antenna device of the intelligent watch.
Description
Technical field
The present invention relates to antenna technology, more particularly, to a kind of wrist-watch antenna assembly and accutron.
Background technology
Along with the development of wireless communication technology, antenna technology also develops by leaps and bounds.Support the equipment increasingly diversification of radio communication.In recent years, wearable device is increasingly subject to the favor of user.The application of intelligent watch is especially extensive, and is increasingly subject to user's favor.
Generally, intelligent watch is the accessory of the mobile equipment such as mobile phone, and it can not realize call independently or exchange with internet data.But, for instance, user expects that intelligent watch can carry out radio communication independently, in order to follows the trail of the whereabouts of child, carry out emergency call etc..Therefore, people begin one's study and can carry out the intelligent watch that independent call exchanges with internet data.
In the prior art, it is possible to the intelligent watch of independent call is generally adopted cabinet.Call antenna is embedded in plastic stent.The outward appearance material of intelligent watch is required higher by a lot of people.They generally pursue the outward appearance of metal-like.But, the metal-back of intelligent watch is very big on the impact of call antenna.Therefore, present intelligent watch can only realize being connected with mobile phone by WIFI, and to converse, they cannot leave mobile phone and realize independent call and data exchange.
Intelligent watch is being be embedded in wrist-watch wrist strap by call antenna by the independent a kind of mode conversed of metal-back antenna realization.Wrist-watch wrist strap adopts plastics or leather substance.So, the metal-back of intelligent watch will not screened shielded antanna signal radiation.But, a shortcoming of this mode is that wrist-watch wrist strap is harder.Additionally, the thickness of this wrist-watch wrist strap is about 7mm.Its pliability is poor, it is impossible to be made frivolous, and this wrist-watch wrist strap is non-exchange.
Additionally, there is people also to attempt the metal-back of wrist-watch is used as aerial radiation.But, this is a new research field.In the prior art, GPS, WIFI antenna is only realized in this way.Therefore, it is also desirable to this technology is made more improvement.
Accordingly, it would be desirable to prior art is improved, to solve at least one technical problem of the prior art.
Summary of the invention
It is an object of the present invention to provide the new solution of a kind of wrist-watch antenna assembly.
According to the first aspect of the invention, it is provided that a kind of wrist-watch antenna assembly, including metal frame, pcb board and modal cutoff circuit.This pcb board has metal level, and is formed with the gap for gap radiation between pcb board and metal frame.This modal cutoff circuit is to input between the distributing point on metal frame to the signal of metal frame feed signal for the radiation mode of exciting radiation signal on metal frame and pcb board and the circuit of degenerate mode thereof being connected.
Preferably, described metal frame does not have fluting and has earth point, and described distributing point and earth point are 25 ° to 35 ° relative to the scope of the angle at the center of described metal frame.
Preferably, described metal frame only has a fluting, and described distributing point and described fluting are 55 ° to 65 ° relative to the scope of the angle at the center of described metal frame
Preferably, described metal frame is annular, and the center of described metal frame is circle ring center.
Preferably, the input of described signal is positioned on described pcb board.
Preferably, described modal cutoff circuit is positioned on described pcb board.
Preferably, described modal cutoff circuit is inductance capacitance combinational circuit.
Preferably, described modal cutoff circuit includes the first electric capacity, the second electric capacity and the first inductance, first end of the first electric capacity is connected with the input of described signal, first end of the second end of the first electric capacity and the first end of the second electric capacity and the first inductance is connected, second end ground connection of the second electric capacity, the second end of the first inductance is connected with described distributing point.
Preferably, the capacitance value range of the first electric capacity and the second electric capacity is 0.5-2pF, and the inductance value range of the first inductance is 0.5-10nH.
According to the second aspect of the invention, it is provided that a kind of accutron, including the wrist-watch antenna assembly according to the present invention, it is used for sending and receiving signal.
Compared with prior art, the wrist-watch antenna assembly of the present invention can excite more antenna radiation pattern, thus producing wider spectral bandwidth.
By referring to the accompanying drawing detailed description to the exemplary embodiment of the present invention, the further feature of the present invention and advantage thereof will be made apparent from.
Accompanying drawing explanation
Combined in the description and the accompanying drawing of the part constituting description illustrate embodiments of the invention, and be used for explaining principles of the invention together with its explanation.
Fig. 1 is the schematic diagram of the wrist-watch antenna assembly according to embodiments of the invention 1.
Fig. 2 is the schematic circuit diagram of the modal cutoff circuit according to the present invention.
Fig. 3 is the schematic diagram of the return loss of the wrist-watch antenna assembly according to embodiments of the invention 1.
Fig. 4 is the schematic diagram of the CURRENT DISTRIBUTION of the low-frequency resonant frequency according to embodiments of the invention 1.
Fig. 5 is the schematic diagram of the CURRENT DISTRIBUTION of the high-frequency resonant frequency of the wrist-watch antenna assembly not including modal cutoff circuit.
Fig. 6 is the schematic diagram of the CURRENT DISTRIBUTION of the high-frequency resonant frequency according to embodiments of the invention 1 including modal cutoff circuit.
Fig. 7 is the schematic diagram of the CURRENT DISTRIBUTION of the degenerate mode of the high-frequency resonant frequency according to embodiments of the invention 1 including modal cutoff circuit.
Fig. 8 is the schematic diagram of the wrist-watch antenna assembly according to embodiments of the invention 2.
Fig. 9 is the schematic diagram of the return loss of the wrist-watch antenna assembly according to embodiments of the invention 2.
Figure 10 is the schematic diagram of the CURRENT DISTRIBUTION of the high-frequency resonant frequency of the wrist-watch antenna assembly not including modal cutoff circuit.
Figure 11 is the schematic diagram of the CURRENT DISTRIBUTION of the high-frequency resonant frequency according to embodiments of the invention 2 including modal cutoff circuit.
Figure 12 is the schematic diagram of the CURRENT DISTRIBUTION of the degenerate mode of the high-frequency resonant frequency according to embodiments of the invention 1 including modal cutoff circuit.
Detailed description of the invention
The various exemplary embodiments of the present invention are described in detail now with reference to accompanying drawing.It should also be noted that unless specifically stated otherwise, the parts otherwise set forth in these embodiments and positioned opposite, the numerical expression of step and numerical value do not limit the scope of the invention.
Description only actually at least one exemplary embodiment is illustrative below, never as any restriction to the present invention and application or use.
The known technology of person of ordinary skill in the relevant, method and apparatus are likely to be not discussed in detail, but in the appropriate case, described technology, method and apparatus should be considered a part for description.
Shown here with in all examples discussed, any occurrence should be construed as merely exemplary, not as restriction.Therefore, other example of exemplary embodiment can have different values.
It should also be noted that similar label and letter below figure represent similar terms, therefore, once a certain Xiang Yi accompanying drawing is defined, then it need not be further discussed in accompanying drawing subsequently.
Fig. 1 illustrates the schematic diagram of the wrist-watch antenna assembly according to embodiments of the invention 1.
As it is shown in figure 1, this wrist-watch antenna assembly includes: metal frame 11 and pcb board 12.It addition, this wrist-watch can also include battery 13, think that wrist-watch is powered.Alternatively, this wrist-watch can also be powered by other means, for instance, by solar powered etc..
Described pcb board 12 has metal level.The gap 14 for gap radiation it is formed with between pcb board and metal frame.
In this embodiment, described wrist-watch antenna assembly also includes modal cutoff circuit.This modal cutoff circuit is the radiation mode for exciting radiation signal on metal frame 11 and pcb board 12 and the circuit of degenerate mode thereof.It is connected and inputs between the distributing point 20 on metal frame to the signal of metal frame feed signal.Such as, the input of described signal may be located on described pcb board.Modal cutoff circuit can be disposed on described pcb board, it is also possible to is a circuit being separately provided (such as, being arranged on other pcb board).
Described modal cutoff circuit can be inductance capacitance combinational circuit.Fig. 2 illustrates the schematic circuit diagram of the modal cutoff circuit according to the present invention.
As in figure 2 it is shown, modal cutoff circuit includes the first electric capacity the 21, second electric capacity 22 and the first inductance 23.First end 211 of the first electric capacity 21 is connected with the input of described signal.Second end 212 of the first electric capacity 21 is connected with the first end 221 of the second electric capacity 22 and the first end 231 of the first inductance 23.Second end 222 ground connection of the second electric capacity 22.Second end 232 of the first inductance 23 is connected with described distributing point 20.It should be appreciated by those skilled in the art, " first ", " second " described herein etc. is for only for ease of description, and is not to be construed as the restriction to circuit position relation.
The value of inductance and electric capacity can be arranged as required to.Such as, in this example, the capacitance value range of the first electric capacity and the second electric capacity is 0.5-2pF, and the inductance value range of the first inductance is 0.5-10nH.
In this embodiment, described metal frame 11 does not have fluting.Described metal frame 11 also has earth point 30.Described metal frame is annular.The center of described metal frame is circle ring center.
In one example, described distributing point 20 and earth point 30 are 25 ° to 35 ° relative to the scope of the angle theta at the center of described metal frame 11, it is preferred to 30 °.By this setup, the discrimination between exciting radiation pattern and the degenerate mode of wrist-watch antenna assembly is better, and the effect of impedance matching is also better simultaneously.
In general, it is possible to use the gap radiation in gap 14 produces the radiation signal of lower frequency.The radiation signal of upper frequency can be produced by metal frame 11 and pcb board 12.Therefore, gap 14 can as low frequency cell, and metal frame 11 and pcb board 12 can do high frequency unit.From this aspect, modal cutoff circuit as high frequency mode split circuit, can be used for providing radiation mode signal and degenerate mode signal thereof for described high frequency unit.It will be appreciated by those skilled in the art that here, " low frequency " and " high frequency " refers to resonant frequency relative position on frequency spectrum, therefore, is properly termed as again " relatively low frequency " and " higher-frequency ".
Fig. 3-Fig. 7 illustrate the antenna assembly shown in Fig. 1 is carried out test gained result.
Fig. 3 illustrates the schematic diagram of the return loss characteristic (S11 characteristic) of the wrist-watch antenna assembly according to embodiments of the invention 1, and wherein, this antenna assembly includes the modal cutoff circuit according to the present invention.In order to compare, Fig. 3 also show the return loss characteristic of the wrist-watch antenna assembly not including modal cutoff circuit.
In figure 3, block curve represents the return loss characteristic of the wrist-watch antenna assembly not including modal cutoff circuit, and dashed curve represents the return loss characteristic according to the wrist-watch antenna assembly including modal cutoff circuit.The 51 low-frequency resonant frequencies representing the antenna assembly not including modal cutoff circuit.The 52 high-frequency resonant frequencies representing the antenna assembly not including modal cutoff circuit.The 53 high-frequency resonant frequencies representing the antenna assembly including modal cutoff circuit.The 54 degenerate mode resonant frequencies representing the high-frequency resonant frequency shown in 53.The 55 low-frequency resonant frequencies representing the antenna assembly including modal cutoff circuit.As seen from Figure 3, modal cutoff circuit makes more than high frequency bandwidth extension is original bandwidth 2 times of wrist-watch antenna assembly, and it is less on the impact of low frequency.More resonant frequency can be produced than prior art by Land use models split circuit, thus spread bandwidth.
Fig. 4 is the wrist-watch antenna assembly not including modal cutoff circuit schematic diagram of the CURRENT DISTRIBUTION on pcb board and metal frame in low-frequency resonant frequency situation.The low-frequency resonant frequency of Fig. 4 is corresponding with 51 in Fig. 3.In the diagram, 20 represent the distributing point in Fig. 1, and 30 represent the earth point in Fig. 1.By the gap 14 between PCB version 12 and metal frame 11, exciting radiation signal.As previously described, the radiation signal produced by gap 14 is low frequency (lower frequency) radiation signal.Determine that the frequency of low-frequency resonant and a factor of wavelength are the length in the gap 14 between pcb board 12 and metal frame 11.
Fig. 5 is the wrist-watch antenna assembly not including modal cutoff circuit schematic diagram of the CURRENT DISTRIBUTION on pcb board and metal frame in high-frequency resonant frequency situation.The high resonant frequency of Fig. 5 is corresponding with 52 in Fig. 3.Such as, the couple current of the CURRENT DISTRIBUTION on pcb board and metal frame is TM11 pattern.
Fig. 6 and Fig. 7 is the schematic diagram of the CURRENT DISTRIBUTION of the wrist-watch antenna assembly including modal cutoff circuit TM11 pattern in high-frequency resonant frequency situation and degenerate mode thereof.CURRENT DISTRIBUTION in Fig. 6 is corresponding with the resonant frequency of 53 instructions in Fig. 3.CURRENT DISTRIBUTION in Fig. 7 is corresponding with the resonant frequency (degenerate mode resonant frequency) of 54 instructions in Fig. 3.In figs. 6 and 7, thick-line arrow illustrates current trend.By comparison diagram 6 and Fig. 7 it can be seen that the electric current of TM11 pattern and degenerate mode thereof angle on PCB is about 30 °, the angle between this with distributing point in the present embodiment 20 and earth point 30 30 ° is corresponding.By this setup, the discrimination between excitation mode and the degenerate mode thereof of this wrist-watch antenna assembly is better.Additionally, the impedance matching of described wrist-watch antenna assembly is also better.
In this embodiment, by modal cutoff circuit, the resonant frequency of TM11 mode signal is separated into less than the resonant frequency of original resonant frequency with more than the resonant frequency of original resonant frequency, thus extending the beamwidth of antenna.
Additionally, in this embodiment, the metal frame respectively through gap radiation and wrist-watch produces radiation signal so that wrist-watch antenna assembly has more resonant frequency.It addition, by the bandwidth of modal cutoff circuit expanded metal frame radiation (high frequency), this is less on the impact of gap radiation (low frequency).
Fig. 8 illustrates the schematic diagram of the wrist-watch antenna assembly according to embodiments of the invention 2.Wrist-watch antenna assembly in Fig. 8 is distinctive in that with the wrist-watch antenna assembly in Fig. 1, and metal frame 110 has a fluting.Being described mainly for the difference between embodiment 2 and embodiment 1 below, embodiment 2 is likely to be omitted with identical part in embodiment 1.
As shown in Figure 8, this wrist-watch antenna assembly includes metal frame 110, pcb board 120, the gap 140 between PCB and metal frame, slot 150 and distributing point 200.Additionally, this antenna assembly can also have battery 130.In this embodiment, using the metal frame of fluting, as radiating element, this is easier to excite circular polarisation.
In fig. 8, metal frame 110 only has a fluting 150.Metal frame is divided into nonocclusive circulus by described fluting.Described distributing point 200 and described fluting 150 are 55 ° to 65 ° relative to the scope of the angle theta at the center of described metal frame 110.In fig. 8, by way of example, the angle theta between distributing point 20 and fluting 15 is 60 °.By this setup, the discrimination between exciting radiation pattern and the degenerate mode of wrist-watch antenna assembly is better, and the effect of impedance matching is also better simultaneously.
Wrist-watch antenna assembly in embodiment 2 also includes the modal cutoff circuit in embodiment 1.Such as in figure 2 it is shown, wherein, the first end 211 of the first electric capacity 21 is connected described modal cutoff circuit with signal input.Second end 232 of the first inductance 23 is connected with described distributing point 200.
It will be appreciated by those skilled in the art that, each feature in embodiment 1 can also be applied to embodiment 2.For simplicity, it is omitted repetitive description.
Fig. 9-12 illustrate the antenna assembly shown in Fig. 8 is carried out test gained result.
Fig. 9 illustrates the schematic diagram of the return loss characteristic (S11 characteristic) of the wrist-watch antenna assembly according to embodiments of the invention 2, and wherein, this antenna assembly includes the modal cutoff circuit according to the present invention.In order to compare, Fig. 9 also show the return loss characteristic of the wrist-watch antenna assembly not including modal cutoff circuit.
In fig .9, block curve represents the return loss characteristic of the wrist-watch antenna assembly not including modal cutoff circuit, and dashed curve represents the return loss characteristic according to the wrist-watch antenna assembly including modal cutoff circuit.The 510 low-frequency resonant frequencies representing the antenna assembly not including modal cutoff circuit.The 520 high-frequency resonant frequencies representing the antenna assembly not including modal cutoff circuit.The 530 high-frequency resonant frequencies representing the antenna assembly including modal cutoff circuit.The 540 degenerate mode resonant frequencies representing the high-frequency resonant frequency shown in 530.The 550 low-frequency resonant frequencies representing the antenna assembly including modal cutoff circuit.As seen from Figure 9, by modal cutoff circuit, from original mode of resonance, produce degenerate mode mode of resonance, thus extending resonant bandwidth.
Figure 10 is the wrist-watch antenna assembly not including modal cutoff circuit schematic diagram of the CURRENT DISTRIBUTION on pcb board and metal frame in low-frequency resonant frequency situation.The low-frequency resonant frequency of Figure 10 is corresponding with 510 in Fig. 9.In Fig. 10,20 represent the distributing point in Fig. 1, and 30 represent the earth point in Fig. 1.By the gap 140 between PCB version 120 and metal frame 110, exciting radiation signal.As previously described, the radiation signal produced by gap 140 is low frequency (lower frequency) radiation signal.Determine that the frequency of low-frequency resonant and a factor of wavelength are the length in the gap 140 between pcb board 120 and metal frame 110.
Figure 11 and Figure 12 is the schematic diagram of the CURRENT DISTRIBUTION of the wrist-watch antenna assembly including modal cutoff circuit TM11 pattern in high-frequency resonant frequency situation and degenerate mode thereof.CURRENT DISTRIBUTION in Figure 11 is corresponding with the resonant frequency of 530 instructions in Fig. 9.CURRENT DISTRIBUTION in Figure 12 is corresponding with the resonant frequency (degenerate mode resonant frequency) of 540 instructions in Fig. 9.In figs. 11 and 12, thick-line arrow illustrates current trend.By contrasting Figure 11 and Figure 12 it can be seen that the electric current of TM11 pattern and degenerate mode thereof angle on PCB is about 60 °, the angle 60 ° between this with distributing point in the present embodiment 200 and fluting 150 is corresponding.By this setup, the discrimination between excitation mode and the degenerate mode thereof of this wrist-watch antenna assembly is better.Additionally, the impedance matching of described wrist-watch antenna assembly is also better.
In wrist-watch antenna assembly according to each embodiment, it is possible to produce gap radiation by the gap between pcb board and metal frame, to produce low frequency radiation.The length in gap is a factor of the resonant frequency determining gap radiation.High frequency radiation can be produced by metal frame.
According to embodiments of the invention, by using modal cutoff circuit, it is possible to excite resonant frequency in wrist-watch antenna assembly, thus extending the bandwidth of wrist-watch antenna assembly.
It addition, the impact of radiation (such as, low frequency radiation) that other radiating elements are produced by described modal cutoff circuit is less.
Further, a purposes of the present invention is the antenna assembly of intelligent watch.Can the wrist-watch antenna assembly according to the present invention be included in various types of intelligent watch, receive for wrist-watch and send signal, to communicate under desired frequency bandwidth.
Although some specific embodiments of the present invention being described in detail already by example, but it should be appreciated by those skilled in the art, example above is merely to illustrate, rather than in order to limit the scope of the present invention.It should be appreciated by those skilled in the art, can without departing from the scope and spirit of the present invention, above example be modified.The scope of the present invention be defined by the appended claims.
Claims (10)
1. a wrist-watch antenna assembly, including: metal frame (11,110), pcb board (12,120) and modal cutoff circuit,
Wherein, pcb board has metal level, and is formed with the gap (14,140) for gap radiation between pcb board and metal frame；And
Wherein, described modal cutoff circuit is to input between the distributing point (20,200) on metal frame to the signal of metal frame feed signal for the radiation mode of exciting radiation signal on metal frame and pcb board and the circuit of degenerate mode thereof being connected.
2. wrist-watch antenna assembly according to claim 1, wherein, described metal frame does not have fluting and has earth point (30), and described distributing point and earth point are 25 ° to 35 ° relative to the scope of the angle at the center of described metal frame.
3. wrist-watch antenna assembly according to claim 1, wherein, described metal frame only has a fluting (150), and described distributing point and described fluting are 55 ° to 65 ° relative to the scope of the angle at the center of described metal frame.
4. the wrist-watch antenna assembly according to Claims 2 or 3, wherein, described metal frame is annular, and the center of described metal frame is circle ring center.
5. wrist-watch antenna assembly according to claim 1, wherein, the input of described signal is positioned on described pcb board.
6. wrist-watch antenna assembly according to claim 1, wherein, described modal cutoff circuit is positioned on described pcb board.
7. wrist-watch antenna assembly according to claim 1, wherein, described modal cutoff circuit is inductance capacitance combinational circuit.
8. wrist-watch antenna assembly according to claim 7, wherein, described modal cutoff circuit includes the first electric capacity (21), the second electric capacity (22) and the first inductance (23), first end (211) of the first electric capacity is connected with the input of described signal, second end (212) of the first electric capacity is connected with first end (231) of first end (221) of the second electric capacity and the first inductance, second end (222) ground connection of the second electric capacity, second end (232) of the first inductance is connected with described distributing point (20,200).
9. wrist-watch antenna assembly according to claim 9, wherein, the capacitance value range of the first electric capacity and the second electric capacity is 0.5-2pF, and the inductance value range of the first inductance is 0.5-10nH.
10. an accutron, including wrist-watch antenna assembly according to claim 1, is used for sending and receiving signal.
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| CN201610272950.9A CN105785757B (en) | 2016-04-28 | 2016-04-28 | Wrist-watch antenna assembly and electronic watch |
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| CN201610272950.9A CN105785757B (en) | 2016-04-28 | 2016-04-28 | Wrist-watch antenna assembly and electronic watch |
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| CN106532229A (en) * | 2016-12-27 | 2017-03-22 | 深圳市中天迅通信技术有限公司 | All-metal watch antenna |
| CN108711668A (en) * | 2018-04-25 | 2018-10-26 | 歌尔股份有限公司 | Antenna assembly and electronic equipment |
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| US10594025B2 (en) | 2013-03-11 | 2020-03-17 | Suunto Oy | Coupled antenna structure and methods |
| US10734731B2 (en) | 2013-03-11 | 2020-08-04 | Suunto Oy | Antenna assembly for customizable devices |
| CN112713408A (en) * | 2020-12-23 | 2021-04-27 | 维沃移动通信有限公司 | Antenna device and electronic apparatus |
| US11018432B2 (en) | 2018-02-08 | 2021-05-25 | Suunto Oy | Slot mode antennas |
| CN112952355A (en) * | 2019-12-10 | 2021-06-11 | 昆山睿翔讯通通信技术有限公司 | Watch and GPS antenna structure thereof |
| US11043748B2 (en) | 2018-02-08 | 2021-06-22 | Suunto Oy | Slot mode antennas |
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