CN106558758B - Wearable device - Google Patents
Wearable device Download PDFInfo
- Publication number
- CN106558758B CN106558758B CN201611066389.5A CN201611066389A CN106558758B CN 106558758 B CN106558758 B CN 106558758B CN 201611066389 A CN201611066389 A CN 201611066389A CN 106558758 B CN106558758 B CN 106558758B
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- China
- Prior art keywords
- antenna
- wearable device
- shell
- wristband
- circuit board
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002184 metal Substances 0.000 claims description 34
- 229910052755 nonmetal Inorganic materials 0.000 claims description 28
- 238000003780 insertion Methods 0.000 claims description 14
- 230000037431 insertion Effects 0.000 claims description 14
- 210000000707 wrist Anatomy 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 abstract description 18
- 238000010586 diagram Methods 0.000 description 12
- 230000005611 electricity Effects 0.000 description 3
- 239000007769 metal material Substances 0.000 description 2
- PEZNEXFPRSOYPL-UHFFFAOYSA-N (bis(trifluoroacetoxy)iodo)benzene Chemical compound FC(F)(F)C(=O)OI(OC(=O)C(F)(F)F)C1=CC=CC=C1 PEZNEXFPRSOYPL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- 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
- G04R60/10—Antennas attached to or integrated in clock or watch bodies inside cases
-
- 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
- H01Q1/14—Supports; Mounting means for wire or other non-rigid radiating elements
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Support Of Aerials (AREA)
Abstract
The invention provides a wearable device. The wearable device provided by the invention comprises: the antenna comprises a shell, a circuit board arranged in the shell, a first antenna and a second antenna, wherein the first antenna and the second antenna are respectively arranged at two ends of the shell; one end of the first antenna, which is close to the shell, is connected with a feed point on the circuit board, and one end of the second antenna, which is close to the shell, is connected with a grounding point on the circuit board. The wearable device provided by the invention can improve the transmission performance of the antenna, so that the wearable device can effectively transmit data in different working states.
Description
Technical Field
The invention relates to an intelligent wearing technology, in particular to wearable equipment.
Background
With the increasing popularity and popularity of wearable devices, users put higher and higher demands on the performance of the wearable devices, and an antenna is one of the most important elements affecting the performance of the wearable devices, and is directly related to the reliability of data transmission between the wearable devices and other electronic devices. Therefore, optimizing the antenna structure of the wearable device is particularly important.
Taking a smart watch as an example, an antenna of the smart watch is generally installed in a watchband. But the intelligent wrist-watch exists two kinds of operating condition, namely when the user wears, the watchband is the state of annular structure to and when the user does not wear, the watchband is sharp state, at present, when the antenna of design intelligent wrist-watch, generally only wear intelligent wrist-watch, the watchband is the antenna structure when annular structure to the user and optimize, make the performance of antenna when this state satisfy the requirement of transmission data, like this, when the intelligent wrist-watch work in another state, the performance of antenna is relatively poor, can't satisfy the requirement of transmission data.
Disclosure of Invention
The invention provides a wearable device, which can improve the transmission performance of an antenna, so that the wearable device can effectively transmit data in different working states.
The wearable device provided by the invention comprises: the antenna comprises a shell, a circuit board arranged in the shell, a first antenna and a second antenna, wherein the first antenna and the second antenna are respectively arranged at two ends of the shell; wherein,
One end of the first antenna, which is close to the shell, is connected with a feed point on the circuit board, and one end of the second antenna, which is close to the shell, is connected with a grounding point on the circuit board.
Further, in a state that the wearable device is worn by a user, one end of the first antenna, which is far away from the shell, is electrically connected with one end of the second antenna, which is far away from the shell, so that a loop antenna is formed.
Further, the first antenna is a first metal wristband connected to a first end of the housing, and the second antenna is a second metal wristband connected to a second end of the housing.
Further, the first antenna is disposed within a first non-metallic wristband of the wearable device and the second antenna is disposed within a second non-metallic wristband of the wearable device.
Further, an end of the first antenna remote from the housing has a first conductive terminal exposed outside the first nonmetallic wrist strap; the second antenna is provided with a second conductive terminal at one end far away from the shell, an insertion part is arranged at one end of the second nonmetal wristband far away from the shell, and the second conductive terminal is closely attached to one end of the insertion part close to the shell; the first conductive terminal is inserted into the insertion portion and electrically connected with the second conductive terminal in a state that the user wears the wearable device.
Further, a first buckle is arranged at one end, far away from the shell, of the first nonmetal wristband, and the first buckle is electrically connected with the first antenna; a second buckle is arranged at one end, far away from the shell, of the second nonmetal wristband, and the second buckle is electrically connected with the second antenna; the first buckle is matched with the second buckle, and the first buckle is buckled with the second buckle under the state of the wearable equipment of a user.
Further, the electrical dimension of the first antenna is 1/4 of the wavelength corresponding to the center frequency of the first antenna.
Further, the electrical size of the second antenna is 1/4 of the wavelength corresponding to the working center frequency of the second antenna, and the working center frequencies of the first antenna and the second antenna are equal.
Further, the electrical size of the loop antenna formed by the first antenna and the second antenna is 1/2 of the wavelength corresponding to the working center frequency of the first antenna.
According to the wearable device, the shell, the circuit board, the first antenna and the second antenna are arranged, the first antenna and the second antenna are respectively arranged at two ends of the shell, one end, close to the shell, of the first antenna is connected with the feed point on the circuit board, and one end, close to the shell, of the second antenna is connected with the grounding point on the circuit board. Therefore, the second antenna and the grounding point on the circuit board form an extension, and the transmission performance of the first antenna can be effectively improved due to the existence of the extension, so that the wearable equipment can effectively transmit data in different working states.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
Fig. 1 is a schematic structural diagram of a wearable device according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a wearable device according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a wearable device according to a third embodiment of the present invention;
Fig. 4 is a schematic structural diagram of a wearable device according to a fourth embodiment of the present invention when the wearable device is in a wearing state of a user;
fig. 5 is a schematic structural diagram of a wearable device according to a fourth embodiment of the present invention when the wearable device is not worn by a user;
fig. 6 is another schematic structural diagram of the wearable device according to the fourth embodiment of the present invention when the wearable device is not worn by a user.
Reference numerals illustrate:
1: a housing;
11: a first end of the housing;
12: a second end of the housing;
2: a circuit board;
21: a feeding point;
22: a grounding point;
3: a first antenna;
31: one end of the first antenna, which is close to the shell;
32: one end of the first antenna, which is far away from the shell;
33: a first conductive terminal;
4: a second antenna;
41: the second antenna is close to one end of the shell;
42: one end of the second antenna, which is far away from the shell;
43: a second conductive terminal;
5: a first non-metallic wristband;
6: a second non-metallic wristband;
63: an insertion section;
7: a first metal wristband;
71: the first metal wristband is close to one end of the shell;
72: one end of the first metal wristband away from the shell;
8: a second metal wristband;
81: the second metal wristband is close to one end of the shell;
82: one end of the second metal wristband away from the shell;
91: a first buckle;
92: and the second buckle.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a wearable device, which can improve the transmission performance of an antenna, so that the wearable device can effectively transmit data in different working states. The wearable device provided by the invention can be a watch, a bracelet and the like.
The wearable device provided by the invention is described in detail below with specific embodiments. The following embodiments may be combined with each other, and some embodiments may not be repeated for the same or similar concepts or processes.
Fig. 1 is a schematic structural diagram of a wearable device according to a first embodiment of the present invention. As shown in fig. 1, the wearable device provided in this embodiment includes: the antenna comprises a shell 1, a circuit board 2, a first antenna 3 and a second antenna 4, wherein the circuit board 2, the first antenna 3 and the second antenna 4 are arranged in the shell 1, and the first antenna 3 and the second antenna 4 are respectively arranged at two ends of the shell 1; wherein, the end 31 of the first antenna 3 near the housing 1 is connected with the feeding point 21 on the circuit board 2, and the end 41 of the second antenna 4 near the housing 1 is connected with the grounding point 22 on the circuit board 2.
Specifically, the housing 1 may be made of a metal material or a non-metal material. It should be noted that, the first antenna 3 and the second antenna 4 may be any antenna in any structural form in the prior art, for example, a PIFA antenna, an IFA antenna, etc., and in this embodiment, the specific structural forms of the first antenna 3 and the second antenna 4 are not limited. Specifically, the first antenna 3 may be connected to the feeding point 21 on the circuit board 2 through a conductive terminal, and the second antenna 4 may be connected to the ground point 22 on the circuit board 2 through a conductive terminal as well.
The principle that the wearable device provided in this embodiment can improve the transmission performance of the antenna is briefly described below. Specifically, referring to fig. 1, the wearable device provided in this embodiment includes a first antenna 3 and a second antenna 4, wherein one end 31 of the first antenna 3 near the housing 1 is connected to a feeding point 21 on the circuit board 2, and one end 41 of the second antenna 4 near the housing 1 is connected to a grounding point 22 on the circuit board 2. In this way, the first antenna 1 not only can transmit signals on the circuit board 2, but also can transmit received signals to the circuit board 2, in addition, by connecting the second antenna 4 with the grounding point 22 on the circuit board 2, the second antenna 4 and the grounding point 22 on the circuit board 2 can form an extended ground, so that the transmission performance of the first antenna 3 can be effectively improved due to the existence of the extended ground, and further, the wearable device can effectively transmit data in different working states.
The wearable device that this embodiment provided, through setting up casing, circuit board, first antenna and second antenna, and first antenna and second antenna divide to establish at the both ends of casing, and the one end that first antenna is close to the casing is connected with the feed point on the circuit board, and the one end that the second antenna is close to the casing is connected with the ground point on the circuit board. Therefore, the second antenna and the grounding point on the circuit board form an extension, and the transmission performance of the first antenna can be effectively improved due to the existence of the extension, so that the wearable equipment can effectively transmit data in different working states.
Two specific implementations are given below for describing the wearable device provided by the present invention in detail.
Fig. 2 is a schematic structural diagram of a wearable device according to a second embodiment of the present invention. Referring to fig. 2, the wearable device provided in this embodiment is based on the above embodiment, where the first antenna 3 is disposed in the first non-metal wristband 5 of the wearable device, and the second antenna 4 is disposed in the second non-metal wristband 6 of the wearable device.
Specifically, in this embodiment, the two ends of the housing 1 of the wearable device are respectively connected with a first non-metal wristband 5 and a second non-metal wristband 6, the first antenna 3 is disposed in the first non-metal wristband 5, and the second antenna 4 is disposed in the second non-metal wristband 6. The first nonmetallic wristband 5 and the second nonmetallic wristband 6 may be made of rubber, resin, or the like. Furthermore, the first antenna 3 may be connected to a feeding point 21 on the circuit board 2 by a feeder line, and the second antenna 4 may be connected to a ground point 22 on the circuit board 2 by a connecting line.
The wearable equipment that this embodiment provided is through setting up casing, circuit board, first antenna and second antenna, and first antenna sets up in first nonmetal wrist strap, and the second antenna sets up in the nonmetal wrist strap of second, and the one end that first antenna is close to the casing is connected with the feed point on the circuit board, and the one end that the second antenna is close to the casing is connected with the ground point on the circuit board. Therefore, the second antenna and the grounding point on the circuit board form an extension, and the transmission performance of the first antenna can be effectively improved due to the existence of the extension, so that the wearable equipment can effectively transmit data in different working states.
Fig. 3 is a schematic structural diagram of a wearable device according to a third embodiment of the present invention. Referring to fig. 3, in the wearable device provided in the embodiment, the first antenna 3 is a first metal wristband 7 connected to the first end 11 of the housing 1, and the second antenna 4 is a second metal wristband 8 connected to the second end 12 of the housing 1.
Specifically, referring to fig. 3, the wearable device provided in this embodiment includes a first metal wristband 7 and a second metal wristband 8, where one end 71 of the first metal wristband 7 near the housing 1 is connected to the feeding point 21 on the circuit board 2, one end 81 of the second metal wristband 8 near the housing 1 is connected to the grounding point 22 on the circuit board 2, the first metal wristband 7 is used as a first antenna, and the second metal wristband 8 is used as a second antenna.
It should be noted that the first metal wristband 7 may be connected to a feeding point 21 on the circuit board 2 through a feeder line, and the second metal wristband 8 may be connected to a grounding point 22 on the circuit board 2 through a connecting line.
In this embodiment, by setting the first metal wristband and the second metal wristband, and connecting one end of the first metal wristband close to the housing with the feeding point on the circuit board, one end of the second metal wristband close to the housing is connected with the grounding point on the circuit board, so that the first metal wristband is used as the first antenna, and the second metal wristband is used as the second antenna, thus, not only can signals be sent and received through the first antenna, but also an extension ground can be formed through the second antenna and the grounding point on the circuit board, so that the transmission performance of the first antenna can be improved through the extension ground, and further, the wearable device can effectively transmit data under different working states.
The wearable device provided by the embodiment sets the first antenna as the first metal wristband connected with the first end of the housing, and sets the second antenna as the second metal wristband connected with the second end of the housing. Therefore, the signal can be sent and received through the first antenna, and the extension ground can be formed through the second antenna and the grounding point on the circuit board, so that the transmission performance of the first antenna is improved through the extension ground, and the wearable equipment can effectively transmit data under different working states.
Fig. 4 is a schematic structural diagram of a wearable device according to a fourth embodiment of the present invention. Referring to fig. 4, on the basis of the above embodiment, in the wearable device provided in this embodiment, in a state that a user wears the wearable device, an end 32 of the first antenna 3, which is far away from the housing 1, is electrically connected to an end 42 of the second antenna 4, which is far away from the housing 1, so as to form a loop antenna.
Two specific implementation manners are given below to explain the technical solutions provided in this embodiment in detail.
Fig. 5 is a schematic structural diagram of a wearable device according to a fourth embodiment of the present invention when the wearable device is not worn by a user. Referring to fig. 5, in the wearable device provided in the present embodiment, an end 32 of the first antenna 3, which is far away from the housing 1, has a first conductive terminal 33, and the first conductive terminal 33 is exposed outside the first nonmetallic wristband 5; the end 42 of the second antenna 4 far away from the shell 1 is provided with a second conductive terminal 43, the end 62 of the second nonmetal wristband 6 far away from the shell 1 is provided with an insertion part 63, and the second conductive terminal 43 is closely attached to the end of the insertion part 63 close to the shell 1; in a state where the wearable device is worn by a user, the first conductive terminal 33 is inserted into the insertion portion 63 and is electrically connected with the second conductive terminal 43.
Specifically, referring to fig. 5, when the first antenna 3 is disposed in the first non-metal wristband 5 and the second antenna 4 is disposed in the second non-metal wristband 6, the first conductive terminal 33 may be disposed at the end 32 of the first antenna 3 away from the housing 1, where the first conductive terminal 33 is exposed outside the first non-metal wristband 5, and meanwhile, the insertion portion 63 is disposed at the end of the second non-metal wristband 6 away from the housing 1, where the depth of the insertion portion 63 is less than or equal to the length of the first conductive terminal 33, and the second conductive terminal 43 is disposed at the end 42 of the second antenna 4 away from the housing 1, where the second conductive terminal 43 is disposed close to the end of the insertion portion 63 near the housing 1. In this way, when the user wears the wearable device, the first conductive terminal 33 may be inserted into the insertion portion 63 of the second non-metal wristband 6 so that the first conductive terminal 33 is electrically connected with the second conductive terminal 43 of the second antenna 4, forming a loop antenna.
Fig. 6 is another schematic structural diagram of a wearable device according to a fourth embodiment of the present invention. Referring to fig. 6, in the wearable device provided in the present embodiment, a first buckle 91 is disposed at an end of the first non-metal wristband 5 away from the housing 1, and the first buckle 91 is electrically connected with the first antenna 3; the end, far away from the shell 1, of the second nonmetallic wristband 6 is provided with a second buckle 92, and the second buckle 92 is electrically connected with the second antenna 4; the first buckle 91 and the second buckle 92 are matched, and the first buckle 91 and the second buckle 92 are buckled in the state of the wearable device by a user.
Specifically, referring to fig. 6, when the first antenna 3 is disposed in the first non-metal wristband 5and the second antenna 4 is disposed in the second non-metal wristband 6, the end 32 of the first antenna 3 away from the housing 1 and the end 42 of the second antenna 4 away from the housing 1 are electrically connected when the user wears the wearable device. At this time, a first buckle 91 may be disposed at one end of the first non-metal wristband 5 far from the housing 1, and the first buckle 91 is electrically connected with the first antenna 3, a second buckle 92 is disposed at one end of the second metal wristband 6 far from the housing 1, and the second buckle 92 is electrically connected with the second antenna 4, the first buckle 91 and the second buckle 92 are matched (for example, the first buckle 91 and the second buckle 92 are snap fasteners respectively), so that when the user wears the wearable device, the user connects the first non-metal wristband 5and the second non-metal wristband 6 through the first buckle 91 and the second buckle 92, and at this time, the first antenna 3 and the second antenna 4 are also electrically connected through the first buckle 91 and the second buckle 92 to form a loop antenna.
It should be noted that, when the first antenna 3 is disposed in the first non-metal wristband 5 and the second antenna 4 is disposed in the second non-metal wristband 6, the above two specific structures are only two possible implementations, and the technical solution of the present invention may also be implemented in other ways, and for other implementations, details are not repeated herein, so that the end 32 of the first antenna 3 away from the housing 1 and the end 42 of the second antenna 4 away from the housing 1 are electrically connected when the user wears the wearable device.
In addition, referring to fig. 3, when the first antenna 3 is a first metal wristband 7 connected to the first end 11 of the housing 1, the second antenna 4 is a second metal wristband 8 connected to the second end 12 of the housing 1. When the user wears the wearable device, the end 72 of the first metal wristband 7 far away from the shell 1 and the end 82 of the second metal wristband 8 far away from the shell 1 can be electrically connected in a manner similar to the fastening of the metal watchband in the prior art, so that the first antenna 3 and the second antenna 4 are electrically connected, and the first antenna 3 and the second antenna 4 form a loop antenna.
The following briefly introduces the principle that the wearable device provided in this embodiment can improve the transmission performance of the antenna, and then can make the wearable device effectively transmit data in different working states. Specifically, first, referring to fig. 1, when the wearable device is operated in a state that the wristband is linear and is not worn by the user, the wearable device provided in this embodiment is provided with the first antenna 3 and the second antenna 4, and the end 31 of the first antenna 3 near the housing 1 is connected to the feeding point 21 on the circuit board 2, and the end 41 of the second antenna 4 near the housing 1 is connected to the grounding point 22 on the circuit board 2. In this way, the first antenna 1 not only can transmit the signal on the circuit board 2, but also can transmit the received signal to the circuit board 2, in addition, by connecting the second antenna 4 with the grounding point 22 on the circuit board 2, the second antenna 4 and the grounding point 22 on the circuit board 2 can form an extended ground, so that the transmission performance of the first antenna 3 can be effectively improved due to the existence of the extended ground, and the wearable device can effectively transmit data when the user does not wear the wristband in a linear state. Next, referring to fig. 4, when the wearable device works in a state that the wrist strap is ring-shaped and worn by a user, the end 32 of the first antenna 3, which is far away from the housing 1, is configured to be connected with the end 42 of the second antenna 4, which is far away from the housing 1, so that the first antenna 3 and the second antenna 4 form a ring antenna, and thus, when the signal is transmitted through the ring antenna, and at this time, because the ring antenna is located on the outer side of the wrist of the human body, the absorption of the signal by the ring antenna is lower, and the signal can be effectively transmitted, so that the wearable device can effectively transmit data when the wrist strap is ring-shaped and worn by the user.
In this embodiment, through set up first antenna and second antenna at the casing both ends, and the one end that first antenna is close to the casing is connected with the feed point on the circuit board, and the one end that the second antenna is close to the casing is connected with the ground point on the circuit board, and under the state that the user wears wearable equipment, the one end that the casing was kept away from to first antenna is kept away from to second antenna is connected with the one end electricity that the casing was kept away from to the second antenna, forms annular antenna. Like this, when the user does not wear wearable equipment, the accessible first antenna transmits the signal, and at this moment, the earth point on second antenna and the circuit board constitutes the extension ground, the transmission performance of first antenna can effectually be improved to the existence of extension ground, when the user wears wearable equipment, the one end that the casing was kept away from to first antenna and the one end electricity that the casing was kept away from to second antenna is connected, first antenna and second antenna form the loop antenna, at this moment, accessible loop antenna comes out the signal, because the loop antenna is located the outside of user's wrist, the wrist is less to the influence of loop antenna transmission signal, consequently, the transmission performance of loop antenna is better, like this, make wearable equipment can all effectively transmit data under different operating conditions.
The wearable device that this embodiment provided, through set up first antenna and second antenna at casing both ends, and the one end that first antenna is close to the casing is connected with the feed point on the circuit board, and the one end that the second antenna is close to the casing is connected with the ground point on the circuit board, and under the state that the user wore wearable device, the one end that the casing was kept away from to first antenna and the one end electricity that the casing was kept away from to the second antenna are connected, form annular antenna. Thus, when the user does not wear, the signal can be transmitted through the first antenna, and when the user wears, the signal can be transmitted through the annular antenna, so that the wearable device can effectively transmit data in different working states.
Further, the electrical size of the first antenna 3 is 1/4 of the wavelength corresponding to the center frequency at which the first antenna 3 operates.
For example, if the center frequency of operation of the first antenna 3 is 900MHZ, the wavelength corresponding to the center frequency of operation of the first antenna 3 is 33 cm, and at this time, the electrical size of the first antenna 3 is 8.25 cm (33/4=8.25).
Further, the electrical size of the second antenna 4 is 1/4 wavelength of the wavelength corresponding to the center frequency of the second antenna operation 4, and the center frequencies of the first antenna 3 and the second antenna 4 are equal.
In combination with the above example, the center frequency of operation of the second antenna 4 is equal to the center frequency of operation of the first antenna 3 and is equal to 900MHZ, and then the center frequency of operation of the second antenna 4 corresponds to a wavelength equal to 33 cm, and at this time, the electrical size of the second antenna 3 is also equal to 8.25 cm (33/4=8.25).
Further, the electrical size of the loop antenna formed by the first antenna 3 and the second antenna 4 is 1/2 of the wavelength corresponding to the center frequency of the operation of the first antenna 3.
The center frequency of the loop antenna operation is equal to the center flatness of the first antenna 3 operation. Specifically, when the wearable device is worn by the user, the end of the first antenna 3 remote from the housing 1 is electrically connected to the end of the second antenna 4 remote from the housing, forming a loop antenna, the electrical size of the loop antenna is equal to 16.5 cm (16.5=8.25+8.25), since the center frequency of operation of the loop antenna is equal to the center frequency of operation of the first antenna 3, at this time, the electrical size of the loop antenna is equal to 1/2 (16.5=33/2) of the wavelength corresponding to the center frequency of operation of the first antenna 3.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (8)
1. A wearable device, comprising: the antenna comprises a shell, a circuit board arranged in the shell, a first antenna and a second antenna, wherein the first antenna and the second antenna are respectively arranged at two ends of the shell; wherein,
One end of the first antenna, which is close to the shell, is connected with a feed point on the circuit board, and one end of the second antenna, which is close to the shell, is connected with a grounding point on the circuit board;
In a state that a user wears the wearable device, one end, far away from the shell, of the first antenna is electrically connected with one end, far away from the shell, of the second antenna to form a loop antenna, and the loop antenna is located on the outer side of the wrist of the user;
When the user does not wear the wearable device, signals are transmitted through the first antenna, and at this time, the second antenna and the grounding point on the circuit board form an extended ground.
2. The wearable device of claim 1, wherein the first antenna is a first metal wristband connected to a first end of the housing and the second antenna is a second metal wristband connected to a second end of the housing.
3. The wearable device of claim 1, wherein the first antenna is disposed within a first non-metallic wristband of the wearable device and the second antenna is disposed within a second non-metallic wristband of the wearable device.
4. The wearable device of claim 3, wherein an end of the first antenna remote from the housing has a first conductive terminal exposed outside the first nonmetallic wrist strap; the second antenna is provided with a second conductive terminal at one end far away from the shell, an insertion part is arranged at one end of the second nonmetal wristband far away from the shell, and the second conductive terminal is closely attached to one end of the insertion part close to the shell; the first conductive terminal is inserted into the insertion portion and electrically connected with the second conductive terminal in a state that the user wears the wearable device.
5. The wearable device according to claim 3, wherein an end of the first non-metallic wristband away from the housing is provided with a first clasp, and the first clasp is electrically connected with the first antenna; a second buckle is arranged at one end, far away from the shell, of the second nonmetal wristband, and the second buckle is electrically connected with the second antenna; the first buckle is matched with the second buckle, and the first buckle is buckled with the second buckle under the state of the wearable equipment of a user.
6. The wearable device of any of claims 3-5, wherein the first antenna has an electrical dimension of 1/4 of a wavelength corresponding to a center frequency at which the first antenna operates.
7. The wearable device of claim 6, wherein the second antenna has an electrical size of 1/4 of a wavelength corresponding to a center frequency at which the second antenna operates, the center frequencies at which the first antenna and the second antenna operate being equal.
8. The wearable device according to claim 7, wherein an electrical size of a loop antenna formed by the first antenna and the second antenna is 1/2 of a wavelength corresponding to a center frequency at which the first antenna operates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN107681266A (en) * | 2017-08-23 | 2018-02-09 | 深圳市天威讯无线技术有限公司 | Stratum prolonged type intelligent watch antenna mechanism |
| JP7240592B2 (en) * | 2019-01-17 | 2023-03-16 | カシオ計算機株式会社 | clock |
| CN112216957B (en) * | 2020-09-29 | 2023-12-01 | 维沃移动通信有限公司 | Wearable electronic device, antenna control method, and storage medium |
| CN112165545A (en) * | 2020-09-29 | 2021-01-01 | 维沃移动通信有限公司 | Wearable electronic device, antenna control method, and storage medium |
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