WO2021023083A1 - 一种可穿戴设备 - Google Patents

一种可穿戴设备 Download PDF

Info

Publication number
WO2021023083A1
WO2021023083A1 PCT/CN2020/105597 CN2020105597W WO2021023083A1 WO 2021023083 A1 WO2021023083 A1 WO 2021023083A1 CN 2020105597 W CN2020105597 W CN 2020105597W WO 2021023083 A1 WO2021023083 A1 WO 2021023083A1
Authority
WO
WIPO (PCT)
Prior art keywords
radiating
wearable device
antenna
radiation
bottom cover
Prior art date
Application number
PCT/CN2020/105597
Other languages
English (en)
French (fr)
Inventor
兰尧
Original Assignee
华为技术有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2021023083A1 publication Critical patent/WO2021023083A1/zh

Links

Images

Classifications

    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • 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
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1041—Mechanical or electronic switches, or control elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups

Definitions

  • This application relates to the field of communication technology, and in particular to a wearable device.
  • Wearable devices include wireless earplugs, smart glasses, smart watches, and smart bracelets.
  • the wearable device in the prior art when the wearable device in the prior art is in use, a part of the signal emitted by the antenna in the wearable device will be lost by the human body, resulting in a decrease in the quality of communication between the wearable device and other devices.
  • the wireless earplugs worn on the left and right ears need to establish good communication with each other to ensure that the two wireless earplugs cooperate with each other to produce stereo sound effects.
  • the signal emitted by the antenna of the wireless earplug is easily absorbed by the human body, resulting in wireless The earbuds have poor sound quality.
  • the present application provides a wearable device to reduce the signal power loss of the antenna therein, so as to improve the communication quality between the antenna and the external wireless device, and thereby improve the use experience of the wearable device.
  • the wearable device In order to reduce the signal power loss of the antenna therein and improve the communication effect of the antenna, the wearable device includes a housing and an antenna; wherein the housing has the function of being worn on the wearable device A preset surface used for contact with the user when the user is in contact with the user; the antenna includes a radiating part, and a feeding part located in the housing and used for coupling and feeding the radiating part, wherein the radiating part is close to the side of the plane where the preset surface is located and the preset
  • the angle of the plane on which the surface is located ranges from 0° to 30°, and the radiating part includes at least a radiating structure for flowing at least one pair of currents flowing in opposite directions.
  • each pair of opposite currents on the radiating structure can excite a pair of opposite induced currents on the surface of the user’s skin, and this pair of opposite induced currents can at least By canceling out part of each other, the signal power loss of the antenna is reduced, and the power that the antenna can be used to communicate with the external wireless device is increased, thereby improving the communication quality between the wireless earplug and the external wireless device.
  • the radiation The structure includes at least a symmetrical structure, so that the two currents of the pair of currents in opposite directions on the radiating structure respectively flow along the symmetrical current paths in the symmetrical structure, so that the current path length of each pair of currents on the radiating structure is as long as possible Tend to be consistent.
  • each pair of opposite currents on the radiating structure are equal or similar in magnitude, each pair of opposite currents on the radiating structure can excite a pair of opposite directions and equal or similar induction on the surface of the user’s skin. Current, the pair of induced currents can cancel each other as much as possible, reduce the signal power loss of the antenna, and improve the communication quality between the antenna and the external wireless device.
  • the above-mentioned radiating structure can have multiple forms, as long as the radiating structure can flow at least one pair of currents in opposite directions.
  • the radiating structure includes at least one linear first radiating unit,
  • the radiating unit includes two first sub-radiators connected by ends; the position where the power feeding portion and the first radiating unit are coupled and fed is located at the connection of the two first sub-radiators.
  • a first radiating unit when the power feeder couples and feeds power to the connection of the two first sub-radiators, the current provided by the power feeder is divided into two paths at the connection of the two first sub-radiators, where The first current flows to the free end of the first sub-radiator, and the second current flows to the free end of the other first sub-radiator in the opposite direction to the first current.
  • the two currents can excite directions on the surface of the user’s skin. A pair of induced currents that are opposite and can cancel each other; and, with this type of radiation structure, a first radiating unit only needs to be equipped with one feeder to generate a pair of currents in opposite directions.
  • the lengths of the two first sub-radiators are approximately equal, so that the current paths of the currents respectively flowing in the two first sub-radiators in one first radiating unit
  • the lengths are approximately equal.
  • the length ratio of one first sub-radiator to the other first sub-radiator is greater than or equal to 1 and less than or equal to 1.3, so that the two first sub-radiators flow in The current induced on the surface of the user's skin is as equal as possible to two induced currents in opposite directions, so that the two induced currents cancel each other out as much as possible.
  • the induced currents excited by each first radiating unit can cancel each other out.
  • multiple first radiating units are located in the same plane and the centers overlap, which is beneficial to save space in the wearable device, and the distance between each first radiating unit and the user's skin surface is as equal as possible, so that when each When the first radiation length is the same or similar, the current flowing on each first radiating unit excites the induced current evenly distributed in all directions on the surface of the user's skin, which is beneficial to the self-compensation of each pair of induced currents, and at the same time, improves the radiation of the antenna performance.
  • the radiating structure includes at least one first radiating unit, and each first radiating unit includes two second sub-radiators arranged in a straight line and electrically isolated; Adjacent ends of two second sub-radiators in a radiating unit are coupled and fed.
  • the power feeder couples and feeds the two first sub-radiators in each group, a current flows from the end of the first second sub-radiator close to the second second sub-radiator to the first second sub-radiator.
  • the number of the second sub-radiators may be multiple, and the multiple second sub-radiators are arranged symmetrically in the center.
  • the radiating part can be a centrally symmetrical figure, and the positive feeding terminal is coupled to the symmetrical center of the radiating part, and the current flowing along the radiating part is The induced currents excited in the first region can all cancel each other.
  • the radiation part may be a circular, rectangular or oval conductive sheet.
  • the structure of the radiating part may be a flat sheet structure, or it may be arranged in other forms according to the internal space of the wearable device.
  • the side of the radiating part close to the plane where the preset surface is located includes a curved surface.
  • the angle between the cut surface at any point on the curved surface and the preset surface is in the range of 0-30° to ensure that when wearing the wearable device, the radiation part can be as parallel to the user's skin surface as possible, so as to be fully coupled with the user's human body , Improve the aperture of the antenna and improve the radiation performance of the antenna.
  • the power feeding part includes a positive feeding terminal and a feeding line connecting the radiating part and the positive feeding terminal, the current path length of the feeding line is greater than 0.01 ⁇ and less than 0.125 ⁇ ; the current path and radiation of the feeding line The sum of the current path lengths of one of the currents flowing in opposite directions on the part is greater than or equal to 0.20 ⁇ and less than 0.25 ⁇ , where ⁇ is the conduction wavelength corresponding to the working frequency band of the antenna; thereby, the radiation performance of the antenna is improved.
  • the feeding part is coupled to the feeding point on the radiating part, and the distance from the feeding point to the edge of the radiating part is greater than or equal to 0.125 ⁇ , where ⁇ is the conduction wavelength corresponding to the working frequency band of the antenna,
  • ⁇ is the conduction wavelength corresponding to the working frequency band of the antenna
  • the radiating part is in a centrally symmetrical pattern, and the distance from the feeding point to the symmetric center of the radiating part is less than or equal to 0.05 ⁇ , and ⁇ is the conduction wavelength corresponding to the working frequency band of the antenna, so as to be arranged in any direction
  • the path lengths of each pair of currents on the opposite sides of the feeding point are not too different.
  • the induced currents excited by the pair of currents on the surface of the user’s skin can fully cancel each other out, and the feeding points along each
  • the distribution of the current flowing from the direction to the edge of the radiating part is more uniform, and not too concentrated in a certain direction, which is beneficial to improve the radiation performance of the antenna and prolong the life of the antenna.
  • the antenna further includes a grounding part arranged opposite to the radiating part; wherein the grounding part is fixedly connected to the housing; the radiating part is located at the preset Between the plane where the surface is located and the grounding part; or, the radiating part is located on the side of the grounding part away from the plane where the predetermined surface is located.
  • the wearable device can have many forms.
  • the wearable device is a wireless earplug.
  • the wireless earplug also includes a speaker arranged in the housing.
  • the speaker is located between the ground portion and the preset surface, and the speaker's horn Facing the preset surface; the radiating part is located between the speaker and the preset surface.
  • the radiating part can be coupled with the human body to increase the diameter of the antenna and improve the radiation performance.
  • the radiating part is located on the side of the grounding part away from the speaker, which can avoid the radiating part to the speaker
  • the sound emitted in the direction of the preset surface causes obstruction, which improves the quality of the speaker sound collected by the user's ears.
  • the housing of the wireless earplug includes a main body, and the main body includes a front end wall and a circumferential side wall connected to the front end wall; both the speaker and the grounding portion are arranged in the main body;
  • the radiating part is arranged on the inner or outer side of the front end wall, and the preset surface is the outer side.
  • the inner or outer side of the circumferential side wall is provided with an extended radiating arm coupled to the radiating part, or at least part of the structure of the circumferential side wall is made of conductive material and the circumferential side
  • the part of the wall made of conductive material is coupled to the radiating part, so that the structure made of conductive material in the extended radiating arm or the circumferential side wall can be used to shield part of the electric field radiated from the grounding part to the user's skin surface and reduce the signal Power loss improves the communication quality between wireless earbuds and external wireless devices.
  • the projection of the extended radiating arm on the circumferential side wall overlaps with a part of the projection of the grounding portion on the circumferential side wall; or, at least part of the structure of the circumferential side wall is made of conductive material,
  • the projection of the structure made of conductive material in the side wall on the circumferential side wall overlaps with a part of the projection of the ground portion on the circumferential side wall; while avoiding part of the electric field radiated from the ground portion to the user's skin surface, it extends
  • the structure where the radiating arm or the circumferential side wall is made of conductive material does not completely wrap the grounding part.
  • the grounding part of the antenna can radiate electromagnetic waves outward to communicate with external wireless devices, and because the signal power at the user’s ears is reduced, The grounding part of the antenna has better communication quality with external wireless devices.
  • the thickness of the radiating part can range from 0.35mm to 1.0mm to avoid too thin the radiating part leading to insufficient strength, and at the same time, to avoid the excessively thick radiating part causing the radiation wavelength of the radiating part to not meet the requirements; the radiating part is at the front end
  • the maximum size of the orthographic projection on the wall ranges from 5mm to 13mm to fit the size of the space in the wireless earplugs.
  • the grounding portion can be formed by various forms such as a grounded metal layer on the circuit board, conductive traces, or metal skin of a battery.
  • the metal structure in the speaker can also be used as at least a part of the grounding portion.
  • the housing When the wearable device is a wireless earplug, the housing includes a main body and a handle, and the handle is connected to the main body, wherein the main body has a preset surface; the grounding part and the radiating part can be arranged in the main body or both In the handle.
  • the wearable device is a wristband device
  • the housing includes a bottom cover and a surrounding wall
  • the bottom cover is formed at the bottom port of the surrounding wall
  • the bottom cover has opposite inner and outer sides
  • the preset surface is the outer surface
  • the radiation part can be formed in many ways, for example, the radiation part is formed in the inner cavity of the housing, or the radiation part is formed on the inner surface, outer surface or inside of the bottom cover.
  • the thickness of the radiating part can be in the range of 0.35mm to 1.0mm, to ensure the intensity of the radiating part and at the same time radiate electromagnetic waves of appropriate wavelength; or, at least part of the structure of the bottom cover is made of conductive material and the bottom cover is made of The part made of conductive material serves as the radiating part, and the thickness of the bottom cover ranges from 0.7mm to 1.2mm.
  • the surrounding wall can be made of conductive material and serve as at least a part of the grounding part, and the whole bottom cover can be made of conductive material and serve as the radiating part.
  • the maximum size range of the orthographic projection of the radiating part on the inner surface of the bottom cover is 8mm ⁇ 45mm, so as to make full use of the space in the wristband device while ensuring the antenna Radiation intensity.
  • the wearable device may also be glasses.
  • the housing includes temples, and the preset surface is the surface of the temples for contact with the user's head.
  • Figure 1a is a schematic diagram of a wireless earplug in the prior art when worn on a user's ear;
  • Figure 1b is a partial enlarged view of H in Figure 1a;
  • Figure 2 is a schematic diagram of a wireless earplug in an embodiment of the application
  • FIG. 3 is a schematic diagram of an exemplary external structure of a wireless earplug in an embodiment of the application
  • FIG. 4a is an exemplary schematic diagram when the wireless earplug is worn on the ear of a user in an embodiment of the application;
  • Figure 4b is a partial enlarged view of I in Figure 4a;
  • Fig. 4c is an exemplary cross-sectional view of the main body of the wireless earplug and its internal components in an embodiment of the application;
  • Fig. 5a is an exemplary schematic diagram of the radiating part viewed from the front side A to the back side B in Fig. 4a;
  • 5b is a simulation effect diagram of the standing wave of the antenna when the wireless earplug in FIG. 4a adopts the structure of the radiating part shown in FIG. 5a;
  • Fig. 5c is an efficiency diagram of the antenna when the wireless earplug in Fig. 4a adopts the structure of the radiating part shown in Fig. 5a;
  • Fig. 5d is a directional diagram of the antenna when the wireless earplug in Fig. 4a adopts the structure of the radiating part shown in Fig. 5a;
  • Fig. 5e is another exemplary schematic diagram of the radiating part viewed from the front side A to the back side B in Fig. 4a;
  • Fig. 5f is another exemplary schematic view of the radiation part viewed from the front A to the back B in Fig. 4a;
  • FIG. 5g is another exemplary schematic diagram of the radiation part viewed from the front side A to the back side B in FIG. 4a;
  • Fig. 5h is another exemplary schematic view of the radiation part viewed from the front A to the back B in Fig. 4a;
  • Fig. 6a is another exemplary schematic diagram when the wireless earplug is worn on the ear of a user in an embodiment of the application;
  • Figure 6b is a partial enlarged view of J in Figure 6a;
  • FIG. 6c is another exemplary cross-sectional view of the main body and internal components of the wireless earplug in the embodiment of the application;
  • FIG. 6d is another exemplary schematic diagram when the wireless earplug is worn on the ear of a user in an embodiment of the application;
  • Figure 6e is a partial enlarged view of K in Figure 6d;
  • Fig. 6f is an exemplary cross-sectional view of the main body of the wireless earplug, its interior and its exterior components in an embodiment of the application;
  • Fig. 7a is another exemplary schematic diagram when the wireless earplug is worn on the ear of a user in an embodiment of the application;
  • Figure 7b is a partial enlarged view of L in Figure 7a;
  • Fig. 8a is another exemplary schematic diagram when the wireless earplug is worn on the ear of a user in an embodiment of the application;
  • Figure 8b is a partial enlarged view at N in Figure 8a;
  • Fig. 9a is an exemplary schematic view of the radiating part viewed from the front A to the back B in Fig. 8a;
  • Fig. 9b is another exemplary schematic view of the radiation part viewed from the front A to the back B in Fig. 8a;
  • FIG. 10a is another exemplary schematic diagram when the wireless earplug is worn on a user's ear in an embodiment of the application;
  • Figure 10b is a partial enlarged view at R in Figure 10a;
  • Fig. 10c is an exemplary schematic diagram of the radiation part viewed from the front side A to the back side B in Fig. 10a;
  • Fig. 10d is another exemplary schematic diagram of the radiating part viewed from the front side A to the back side B in Fig. 10a;
  • Figure 11a is an exemplary schematic diagram of the internal structure of the wristband device in an embodiment of the application.
  • Fig. 11b is an exemplary schematic diagram of the radiating part viewed in the negative direction of the z-axis in Fig. 11a;
  • FIG. 12 is an exemplary schematic diagram of the radio frequency transceiver feeding power to the antenna when the wearable device is a wristband device in an embodiment of the application;
  • FIG. 13a is an exemplary schematic diagram when the glasses are worn on the head of a user in an embodiment of the application
  • FIG. 13b is an enlarged view of the schematic diagram of the internal structure of the host portion viewed in the direction F in FIG. 13a;
  • Figure 13c is a partial enlarged view of T in Figure 13b;
  • FIG. 14 is an exemplary schematic diagram of the radio frequency transceiver feeding power to the antenna when the wearable device is glasses in an embodiment of the application.
  • the wearable device may be wireless earplugs, wristband devices (including but not limited to smart watches and smart bracelets), smart glasses, etc.
  • wristband devices including but not limited to smart watches and smart bracelets
  • smart glasses etc.
  • Figure 1a shows a schematic diagram of a wireless earplug when it is worn on a user’s ear.
  • Figure 1b is a partial enlarged view at H in Figure 1a. Please refer to Figures 1a and 1b.
  • the wireless earplug includes a housing 100.
  • the main body 110 of the speaker port 111 and the handle 120 extending from the main body 110 in the Q direction.
  • the handle 120 is usually close to the skin surface (such as the surface of the orthographic projection area 231) in the orthographic projection area 231 on the user's face 230; the antenna is arranged in the handle 120, and the antenna includes a resonant element 130 and the ground portion 133 (the resonant element 130 and the ground portion 133 are respectively formed by metal traces arranged on opposite sides of the circuit substrate 134).
  • the resonant element 130 is a monopole antenna such as an inverted F antenna or an inverted L antenna 1a
  • the resonant element 130 includes a resonant element arm 131 and a feeding part 132.
  • the resonant element arm 131 and the ground part 133 are arranged oppositely and both extend in the Q direction within the handle 120.
  • the feeding part 132 is connected to one end of the resonant element arm 131 in the P direction.
  • the resonant element arm 131 When a signal source such as a radio frequency transceiver feeds the power feeding unit 132, the resonant element arm 131 has a current I along the Q direction, and the current I will be on the user’s face
  • the orthographic projection area 231 on the 230 excites an induced current I'that is opposite to the direction of the current I. Due to the resistance of the human body, the appearance of the induced current I'will cause a part of the signal sent by the antenna of the wireless earplug to be lost, thus, the user
  • the signal power of the wireless earplugs worn by the ear 210 on one side of the head is used to communicate with other devices (such as smart watches, mobile phones, or wireless earplugs worn on the other ear of the user's head). The communication quality of the device is poor.
  • an embodiment of the present application provides the following wireless earplugs 10:
  • FIG 2 exemplarily shows a schematic diagram of a wireless earplug provided by an embodiment of the present application.
  • the wireless earplug 10 can communicate wirelessly with an external wireless device 71 through a wireless link 72, and the external wireless device 71 can be used for Another wireless earplug configured in a pair with the wireless earplug 10 may also be a smart watch, smart glasses, smart bracelet or mobile phone, etc.; the wireless link 72 may be a cellular phone link, Near-Field Communication (NFC, Near-Field Communication). Communication) link, link, Link, millimeter wave communication link, ZigBee link, NB-IoT link or other wireless communication links, etc.
  • NFC Near-Field Communication
  • the wireless earplug 10 also includes a control unit 11, which includes but is not limited to a processing circuit and a storage circuit.
  • the processing circuit may include multiple processors (such as a microcontroller, a digital signal processor, a baseband processor, and a baseband processor). Etc.) and storage circuits (volatile memory and non-volatile memory), etc.
  • the control unit 11 can be implemented including cellular phone protocol, protocol, A wireless communication protocol including a protocol, etc., so that the wireless earplug 10 can realize wireless communication with the external wireless device 71.
  • the wireless earplug 10 further includes an input and output component 12, such as a speaker for emitting sound to the user's ear, a proximity sensor for identifying whether the wireless earplug 10 is worn on the user's ear, and the like.
  • the control unit 11 is coupled with the input/output component 12 (for example, it sends a control signal for sounding to a speaker or receives a signal from a proximity sensor that the wireless earplug 10 has been worn on or separated from the user's ear).
  • the wireless earplug 10 also includes a radio frequency transceiver 13 (such as a cellular phone transceiver, Transceiver and Transceiver, etc.) and antenna 16, wherein the control unit 11 is coupled to the radio frequency transceiver 13, and the radio frequency transceiver 13 is coupled to the antenna 16 through the transmission line 14.
  • the control unit 11 can control the radio frequency transceiver 13 to transmit and receive signals through the antenna 16; examples sexually, the transmission line 14 includes a positive signal line 14a and a ground signal line 14b.
  • the antenna 16 has a feeder 21 (see FIG. 4b), and the feeder 21 has a radiation coupled to the resonant element 20 in the antenna 16 (see FIG. 4a).
  • the transmission line 14 can be directly coupled to the radiating part 25 of the resonant element of the antenna 16 and the ground part of the antenna 16, or it can be coupled to the near-field coupling feeder first, and the near-field coupling feeder The part is coupled to the radiating part of the resonant element of the antenna 16 or the ground part of the antenna 16 by means of near-field coupling.
  • the positive signal line 14a is directly coupled to the near-field coupling feeder, and the near-field coupling feeder It is coupled to the radiating part of the resonant element of the antenna 16 by means of near-field coupling.
  • the wireless earplug 10 also includes a battery 17, which is used to power the control unit 11, the input and output components 12, the radio frequency transceiver 13, and the like.
  • FIG. 3 shows an exemplary external structure diagram of the wireless earplug 10 in the embodiment of the present application.
  • the wireless earplug 10 has a front face A and a back face B, and the wireless earplug 10 includes a housing 300, and the housing 300 includes The main body 310 and the handle 320, the handle 320 may have a slender extension structure extending from the main body 310 in the D direction (FIG.
  • the handle 320 is arranged to facilitate the fixation of the wireless earplug 10 to the ear, for example, the handle 320 is clamped between the user’s tragus and the antitragus, and at the same time, it is convenient for the user to grasp the handle 320 to It is convenient to take the wireless earplug 10, the handle 320 may have a bending structure in addition to the straight structure shown in FIG. 3, and the bending structure may be used to clamp the auricle.
  • the material of the housing 300 includes but not Limited to one or a combination of any of the dielectric materials such as plastic, carbon fiber, and ceramic; wherein, the main body 310 has at least one surface (ie, a preset surface) for fitting (or close to and approximately parallel to) the inner surface of the ear.
  • the preset surface may be the outer side of the front end wall 312 of the main body 310 on the front side A in FIG. 3 (the preset surface may refer to the reference number 90A in FIG. 3), or it may be the circumference To one side of the side wall 313, the main body 310 is provided with at least one speaker port 311.
  • the speaker port 311 is formed on the front wall 312 of the main body 310 (but it can also be arranged on the main body 310 facing the front A and the back B
  • a dust-proof net (including but not limited to plastic and ceramic materials) is installed at the speaker port 311;
  • the shape of the main body 310 is exemplarily shown as being similar to a cylinder.
  • the main body 310 is not necessarily cylindrical, and may also have other shapes, for example, common wired or wireless The shape of the part of the earplug that fits into the user's ear.
  • FIG. 4a shows an exemplary schematic diagram when the wireless earplug is worn on the user's ear 410
  • FIG. 4b is a partial enlarged view at I in FIG. 4a
  • FIG. 4c shows the wireless earplug A cross-sectional view of the main body 320 and its internal components, where FIG. 4c only shows the relative positional relationship of the main body 320 and its components, and does not show the actual structure of each component in the wireless earplug 10.
  • a first circuit board 18a, a battery 17, a second circuit board 18b, a speaker 23, and a resonant element 20 are sequentially arranged, wherein the first circuit The board 18a, the battery 17, the second circuit board 18b, the speaker 23, and the resonant element 20 are all relatively fixed to the main body 310, the speaker 23 is aligned with the speaker port 311, the horn outlet of the speaker 23 faces the speaker port 311, and the resonant element 20 includes radiation
  • the side of the radiating portion 25 facing the front end wall 312 is parallel or approximately parallel to the outer side of the front end wall 312.
  • the side of the radiating portion 25 facing the front end wall 312 and the outer side of the front end wall 312 is assumed that the included angle between the planes where the surface 90A) is located is within the first setting range.
  • the included angle of the first setting range can be 0°-30°, for example, 0°, 5°, 10°, 20° And 30°, etc.
  • Fig. 4a only shows that the side of the radiating part 25 facing the front end wall 312 is parallel to the outer side of the front end wall 312; in Fig. 4a, the wireless earplug is viewed from the front A to the back B direction
  • the shape of the radiation portion 25 is a circular sheet-like structure as shown in FIG.
  • the radiation portion 25 may be a metal foil or a metal film (for example, formed on the front end wall 312 in the form of laser engraving or metal spraying). Inner side), metal sheet, graphene film, conductive trace or other conductive structure formed conductive sheet structure, the radiation part 25 can be made of gold, silver, tube, aluminum, metal alloy, graphene and other conductive materials Made of any one or several kinds, the feed part 21 has a positive feed terminal 15a coupled to the center of the radiating part 25 and a ground feed terminal 15b coupled to the ground part of the antenna 16, and is located on the second circuit board 18b
  • the radio frequency transceiver 13 is coupled to the positive feed terminal 15a through the positive signal line 14a, and is coupled to the ground feed terminal 15b through the ground signal line 14b, so as to respectively direct the radiation portion 25 and the antenna 16 of the resonant element 20 of the antenna 16
  • the grounding part of the feeder feeds radio frequency signals, where the positive signal line 14a and the ground signal line 14b are exemplarily configured in the flexible
  • the ground feed terminal 15b is exemplarily coupled to the metal structure (such as a metal shell) of the speaker 23; exemplarily, the second circuit board 18b may also have a second ground metal layer 19, and the second ground
  • the metal layer 19 can be a conductive trace, a conductive film layer, a metal sheet, a metal foil, or other conductive structure formed on the surface of the second circuit board 18b, and the second grounded metal layer 19 can also be formed on the insulating medium of the second circuit board 18b.
  • the middle it should be noted that in FIG.
  • the second ground metal layer 19 is exemplarily located on the side of the second circuit board 18b facing the back B, and the radio frequency transceiver 13 is located on the side of the second circuit board 18b facing the front A
  • the second ground metal layer 19 can also be located on the side of the second circuit board 18b facing the front surface A, and the radio frequency transceiver 13 can be located on the side of the second circuit board 18b facing the back surface B.
  • the second ground metal layer 19 can be
  • the radio frequency transceiver 13 and the radiating part 25 are electromagnetically isolated to shield the mutual interference between the radio frequency transceiver 13 and the radiating part 25.
  • the second grounding metal layer 19 can be used as at least a part of the grounding part of the antenna 16; the first circuit board 18a There may also be a first grounded metal layer 26 similar to the second grounded metal layer 19.
  • the first grounded metal layer 26 may also be used as at least a part of the ground portion of the antenna 16; the metal shell of the battery 17 may also be used as the ground of the antenna 16.
  • the ground feed terminal 15b may be coupled to one or more of the metal structure of the speaker 23, the second ground metal layer 19, the first ground metal layer 26, or the metal shell of the battery 17, or While being coupled to one of the metal structure of the speaker 23, the second grounded metal layer 19, the first grounded metal layer 26, or the metal casing of the battery 17, the metal structure of the speaker 23, the second grounded metal layer 19, the second A grounded metal layer 26 and the metal shell of the battery 17 are short-connected.
  • the metal structure of the speaker 23, the second grounded metal layer 19 and the metal shell of the battery 17 are short-connected.
  • the front A of the wireless earplug 10 is facing the user's head, the main body 310 of the wireless earplug 10 is placed in the groove structure of the ear 410, and the outer side of the front wall 312 (ie, the preset surface 90A) It fits or is approximately parallel to the bottom surface of the groove structure of the ear 410 (usually, the angle between the front end wall 312 and the bottom surface of the groove structure of the ear 410 is 0°-20°, which can be 0°, 5° , 10°, 15° or 20°, depending on the user’s wearing condition), the sound emitted by the speaker 23 reaches the ear canal 420 through the speaker port 311 of the front wall 312 and continues to be conducted to the user’s auditory system.
  • the radiating part 25 is in the ear
  • the orthographic projection of the bottom surface of the groove structure of the portion 410 is the first region 431; as shown in FIG. 5a, the radiation portion 25 of the circular sheet structure can be divided into a plurality of narrow strips extending along the diameter of the radiation portion 25
  • One of the first radiating units extending in the direction of C ⁇ D includes first sub-radiating units arranged on both sides of the center of the circle (the center of the circle is coupled to the feeder 21) and extending along the radius of the radiating section 25
  • the current fed into the radiation portion 25 from the center of the radiation portion 25 is divided into a current I1 flowing along the first sub-radiator 25a and a current I2 flowing along the first sub-radiator 25b.
  • the current path lengths of I1 and current I2 are the same and opposite in direction.
  • the current I1 excites the induced current I1' in the first region 431, and the current I2 excites the induced current I2' in the first region 431.
  • the induced current I1' and the induced current I2' in the first region 431 have the same magnitude and opposite directions. Therefore, the induced current I1' and the induced current I2' cancel each other out;
  • the first radiating unit in the radiating part 25 extending in another diameter direction includes a first sub-radiator 25c and a first sub-radiator 25d arranged on opposite sides of the center of the circle.
  • the current in the first sub-radiator 25c The induced current excited in the first region 431 and the induced current excited by the first sub-radiator 25d in the first region 431 can also cancel each other, and so on, the circular radiator 25 extends along each diameter
  • the induced currents excited by the first radiating unit in the first region 431 cancel each other out; compared with the current I in FIG. 1a, the induced current I'that is larger and cannot be canceled is excited in the orthographic projection area 231.
  • the signal power used to communicate with the external wireless device 71 increases, thereby reducing the SAR (Specific Absorption Ratio) value, and improving the communication quality between the wireless earplug 10 and the external wireless device 71.
  • SAR Specific Absorption Ratio
  • the radiating part 25 and the grounding part of the antenna 16 can also be short-connected through the grounding wire 24.
  • the grounding wire 24 shorts the radiating part 25 and the metal shell of the speaker 23.
  • the grounding wire 24 is also It may not be provided. When the ground wire 24 is not provided, it can be avoided to a certain extent that the current in the ground wire 24 excites induced current in the first area 431, resulting in more induced current remaining in the first area 431, thereby increasing the antenna The signal power loss of 16 reduces the communication quality.
  • the positive feeding terminal 15a is exemplarily connected to the center of the radiating part 25 through the feeding line 21a, the conduction wavelength corresponding to the working frequency band of the antenna 16 is recorded as ⁇ , and the current path of the feeding line 21a (positive in Fig.
  • the length of the feeder terminal 15a to the connection point 15j between the feeder line 21a and the radiating portion 25) is greater than 0.01 ⁇ and less than 0.125 ⁇ ; the current path from the connection point 15j of the feeder line 21a and the radiating portion 25 to any point on the edge of the radiating portion 25 (equivalent to The sum of the length of the path from the center of the radiating portion 25 to any point on the edge of the radiating portion 25, that is, the radius of the radiating portion 25, and the current path length of the feeder line 21a is less than or equal to 0.25 ⁇ .
  • the current path length of the feeder 21a is 0.01 ⁇ and the radius of the radiating portion 420 is 0.23 ⁇
  • the current path length of the feeder 21a is 0.02 ⁇ and the radius of the radiating part 420 is 0.22 ⁇
  • the current path length of the feeder 21a is 0.03 ⁇ and the radius of the radiating part 420 is 0.21 ⁇
  • the current path length of the feeder 21a is 0.04 ⁇ and the radius of the radiating part 420 is 0.20 ⁇
  • the current path length of the feeder 21a is 0.05 ⁇ and the radius of the radius of the
  • the thickness of the radiation portion 25 ranges from 0.35mm to 1.0mm, for example, it may be 0.35mm, 0.5mm, 0.75mm, 1.0mm, etc., when the plane of the radiation portion 25 facing the front end wall 312 is parallel to the front end wall 312
  • the maximum size range of the orthographic projection of the radiating portion 25 on the front end wall 312 is 5 mm to 13 mm, for example, It is 5mm, 7mm, 10mm, 13mm or other lengths.
  • the "maximum size of the orthographic projection of the radiation portion 25 on the front end wall 312" should be understood as the orthographic projection of the radiation portion 25 on the front end wall 312 The distance between the two points with the greatest distance.
  • Figure 5b shows the standing wave simulation effect when the radiation part 25 in Figure 4a is in the shape of Figure 5a, where the ordinate represents the reflection coefficient (S11 parameter), the unit is dB, and the abscissa represents the frequency, the unit is GHz.
  • S11 parameter the reflection coefficient
  • dB the unit is dB
  • abscissa the frequency
  • the unit is GHz.
  • the curve referred to is the simulation curve when the antenna 16 is worn on the user's ear 410
  • the curve indicated by the symbol 2 is the simulation curve when the antenna 16 is located in a free space (FS).
  • the antenna 16 can be seen from Figure 5b.
  • the best working frequency band when worn on the user’s ear 410 is 2.45GHz and the best working frequency band when the antenna 16 is in free space is 2.48GHz;
  • Figure 5c shows the efficiency diagram of the antenna 16, where the ordinate represents the frequency and the unit is dB, the abscissa represents the frequency and the unit is GHz, curve 1 represents the system efficiency curve when the antenna 16 is exposed to free space, curve 2 represents the radiation efficiency curve when the antenna 16 is exposed to free space, and curve 3 represents the antenna 16 worn with the wireless earplug
  • Figure 4 shows the radiation efficiency curve when the antenna 16 is worn with the wireless earplug 10 on the user's ear 410.
  • the antenna 16 is in the best operating frequency band 2.45 At GHz, when the antenna 16 is worn on the user’s ear 410, the system efficiency of the antenna 16 is reduced by about 3dB compared to when the antenna 16 is exposed to free space. Compared with the prior art shown in Fig. 1a, the inverted-F antenna or the inverted L-shaped antenna is used.
  • the radiating part 25 can also be rectangular as shown in FIG. 5e.
  • the maximum dimension of the orthographic projection of the radiating portion 25 on the front end wall 312 is 5mm-13mm, for example, 5mm , 7mm, 10mm, 13mm or other lengths.
  • the positive feeding terminal 15a is coupled to the center of symmetry of the radiating portion 25, and the radiating portion 25 is divided into a plurality of narrow strip-shaped first radiating elements that pass through the center of symmetry of the radiating portion 25 and extend in various linear directions. Therefore, the first radiating elements passing through the symmetry center of the radiating portion 25 are all symmetrical about the symmetry center of the radiating portion 25.
  • the first sub-radiator 25e and the first sub-radiator 25f are symmetrical about the symmetry center of the radiating portion 25, and any The induced currents in the first region 431 of the bottom surface of the groove structure of the ear 410 can be canceled out by the current in the narrow strip-shaped first radiating unit passing through the symmetric center of the radiating portion 25.
  • the induced currents excited by the current flowing along the surface of the radiating portion 25 in the first region 431 can cancel each other out; and it should be understood that when the radiating portion 25 rotates around the axis passing through its center of symmetry to different When angled, the same effect can still be achieved.
  • the radiating part 25 can also be regular N-sided (where N is a positive even number, such as regular hexagons and regular octagons), elliptical, and parallel.
  • N is a positive even number, such as regular hexagons and regular octagons
  • elliptical and parallel.
  • the induced currents excited by the current flowing along the radiating portion 25 in the first region 431 can cancel each other.
  • the radiating portion 25 may not only be a flat sheet-like figure, but also include a partially curved structure, or the radiating portion 25 may be a curved sheet-like structure as a whole, that is, the side of the radiating portion 25 facing the front end wall 312 is at least partially curved.
  • the angle between the cut plane at any point and the preset surface 90A does not exceed 30°, for example, it can be 0°, 5°, 10°, 20°, 30°, and so on.
  • the radiation part 25 of the wireless earplug 10 may also be of the following types:
  • the radiating portion 25 is only composed of a narrow strip-shaped first radiating unit extending along a straight line.
  • the extending direction of the radiating unit is exemplarily parallel to the outer side of the front end wall 312 (ie, the preset surface 90A).
  • the positive feeding terminal 15a is coupled to the center position of the radiating portion 25, and the radiating portion 25 includes a symmetrical center of the radiating portion 25.
  • the first sub-radiator 25g and the first sub-radiator 25h, the current in the first sub-radiator 25g and the current in the first sub-radiator 25h can cancel each other out in the first region 431; in some cases below, the first sub-radiator 25g and the first sub-radiator 25h in FIG. 5f can also be curved, and the angle between the tangent to any point on the curve and the plane where the preset surface 90A is located does not exceed 30°, For example, it may be 0°, 5°, 10°, 20°, 30°, etc.; as another modification, as shown in FIG. 5g, the radiating portion 25 may include a plurality of narrow lines extending along a straight line as shown in FIG. 5f.
  • Strip-shaped first radiating elements (such as first radiating element i, first radiating element j, and first radiating element k), and the angle between the plurality of narrow strip-shaped first radiating elements is greater than zero, each first radiating element They are located on the same plane and overlap in the center.
  • the length of each first radiating unit can be different or the same.
  • the positive feeding terminal 15a is coupled to the center of each first radiating unit, and the current on each first radiating unit is in the first area.
  • the induced currents excited in the 431 can all cancel each other; in addition, each first radiating unit in FIG.
  • each first radiating unit 5g can be arranged separately, for example, the symmetry center of each first radiating unit can be arranged along the same common axis extending along a straight line , And each first radiating unit is exemplarily perpendicular to the common axis, and the common axis is perpendicular to the predetermined surface 90A (here "vertical" is not strictly perpendicular, for example, the common axis is perpendicular to the predetermined surface 90A
  • the included angle of the vertical line is less than or equal to 25°, which can be 5°, 10°, 15°, 20°, 25° or other included angle values), which can ensure that each first radiating unit is in the first position of the user’s ear 410
  • the induced currents excited by the surface of the area 431 do not interfere with each other as much as possible, and the induced currents excited by each first radiating unit can cancel each other out.
  • the narrow strip-shaped first radiating element in FIG. 5f may not be parallel to the plane where the predetermined surface 90A is located.
  • the angle between the first radiating element and the plane where the predetermined surface 90A is located is less than or equal to 30°, which may be 5°. , 10°, 15°, 20°, 25°, 30° or other angles.
  • the shape of the radiating part 25 is a triangle, a trapezoid, a regular M polygon (M is a positive odd number, such as a regular pentagon and a regular heptagon, etc.) irregular figures or other non-centrosymmetric figures, or the radiation
  • the part 25 is a centrally symmetrical pattern, but the positive feeding terminal 15a is coupled to the central part of the radiating part 25 except for the center of symmetry.
  • the radiating part 25 As long as the radiating part 25 as a whole includes a radiating structure that meets the following conditions, the radiating part 25 can be in a certain degree
  • the radiating structure satisfies the condition that: the positive feeding terminal 15a is coupled to the feeding point on the radiating structure along the radiating structure In the direction of any straight line passing through the feeding point, the part U on one side of the feeding point (for example, the first sub-radiator 25a in FIG. 5a) has the same part on the other side of the feeding point.
  • the part V that matches U (for example, the first sub-radiator 25b in FIG.
  • the radiation part 25 in Figure 5a, Figure 5e, Figure 5f and Figure 5g is a radiation structure as a whole;
  • Figure 5h shows another type of radiation part viewed from the front A to the back B of the wireless earplug 10 in Figure 4a
  • the radiating portion 25 is illustratively a fan-shaped structure with rounded angles and obtuse angles, and the positive feeding terminal 15a is coupled to the center of the fan-shaped structure.
  • the area S2 and the area S3 are centrally symmetrically arranged.
  • the above-mentioned radiation structure can be formed together, and, for example, if the extension of the area S2 continues to extend outward, the area S2 is not symmetrical to the center of the area S3, but because any current in the area S3 has the same value as the area S2
  • the regions S2 and S3 still constitute the above-mentioned radiating structure, and because the region S4 is missing, the current in any part of the radiating part 25 will not have the opposite direction of the current in the region S1, so the region S1 does not constitute Part of the aforementioned radiating structure.
  • the induced current excited by the current in the radiating part 25 in the first region 431 may remain, they can cancel at least a part of each other, thereby reducing signal power loss to a certain extent.
  • the positive feeding terminal 15a is coupled to the feeding point on the radiating part 25.
  • the radiating part 25 has a centrally symmetrical pattern, if the feeding point deviates from the center of symmetry of the radiating part 25, the feeding point is away from the radiating part 25.
  • the distance of the center of symmetry can be less than or equal to 0.05 ⁇ , such as 0.01 ⁇ , 0.02 ⁇ , 0.03 ⁇ , 0.04 ⁇ , and 0.05 ⁇ ; regardless of whether the radiating part 25 is a centrally symmetrical figure, the feeding point is a distance from the radiating part 25
  • the edge is greater than or equal to 0.125 ⁇ , such as 0.125 ⁇ , 0.150 ⁇ , 0.175 ⁇ , 0.200 ⁇ , and 0.250 ⁇ ; where ⁇ is the conduction wavelength corresponding to the operating frequency band of the antenna 16; and, for example, in some cases,
  • the length of the current path from the feeding point in the first direction to a point on the edge of the radiating portion 25 is approximately equal to the length of the current path from the feeding point in the second direction to a point on the edge of the radiating portion 25.
  • the “approximately equal” means ,
  • the ratio of the current path length from the feeding point along the first direction to a point on the edge of the radiating portion 25 to the current path length from the feeding point along the second direction to a point on the edge of the radiating portion 25 is less than or equal to 1.3, specifically Referring to FIG. 5f, the lengths of the first sub-radiator 25g and the first sub-radiator 25h may not be completely equal.
  • the length ratio of the first sub-radiator 25g and the first sub-radiator 25h is less than or equal to 1.3, which may be 1. 1.1, 1.2, 1.3 or other values.
  • FIG. 6a shows a modification of the wireless earplug 10 shown in Fig. 4a
  • Fig. 6b shows a partial enlarged view at J in Fig. 6a
  • Fig. 6c shows the wireless earplug 10 A cross-sectional view of the main body 320 and its internal components, where Figure 6c only shows the relative positional relationship of the main body 320 and its components, and does not show the actual structure of the components in the wireless earplug 10.
  • Figures 6a, 6b and As shown in 6c the difference between the wireless earplug 10 shown in FIGS. 6a, 6b, and 6c and the wireless earplug 10 shown in FIG.
  • the radiating portion 25 is exemplarily arranged in close contact with the inner surface of the front end wall 312, and the main body 310 has a circumferential side wall 313 connected to the edge of the front end wall 312.
  • the circumferential side wall 313 is in the shape of a circumferential curved surface, and the front end wall 312 is perpendicular or approximately perpendicular to the circumferential side wall 313.
  • the circumferential side wall 313 can also It is another irregular curved surface shape.
  • the inner surface of the circumferential side wall 313 of the main body 310 is covered with an extended radiating arm 28 made of conductive material.
  • the extended radiating arm 28 is coupled to the edge of the radiating portion 25, for example, the extension
  • the radiating arm 28 can block a part of the grounding part and stagger the other part of the grounding part, that is, part of the projection of the grounding part on the circumferential side wall 313 overlaps with the projection of the extended radiating arm 28 on the circumferential side wall 313, and extends the radiating arm
  • the distance between the end of 28 close to the front surface A and the end of the extension radiating arm 28 close to the back B is less than or equal to 25mm, for example, it can be 5mm, 10mm, 15mm, 20mm or 25mm.
  • the extension radiating arm 28 and the radiating part 25 can adopt an integrated structure
  • a metal film is formed on the inner surface of the front end wall 312 as the radiation portion 25
  • a metal film integrated with the radiation portion 25 is formed on the inner surface of the circumferential side wall 313 of the main body 310 as an extended radiation arm 28.
  • the extended radiating arm 28 and the radiating portion 25 may also adopt a conductive sheet structure formed by metal foil, stamped metal sheet, conductive trace or other conductive structure.
  • the grounding portion of the antenna 16 (such as the second grounding metal layer 19, the housing of the battery 17, or the first grounding metal layer 26) will radiate electric fields, and these electric fields will be in the groove structure of the ear 410
  • the side surfaces (such as the surface of the second region 432 and the surface of the third region 433) form a larger induced current, and as shown in FIG.
  • an extension radiating arm is provided on the inner side of the circumferential side wall 313 of the main body 310 After 28, because the extended radiating arm 28 shields and shields part of the electric field radiated from the ground portion to the surface of the second area 432 and the surface of the third area 433, the signal power loss is reduced, and the wireless earplug 10 and the external wireless device 71 are improved. Communication quality.
  • the extended radiating arm 28 does not completely wrap the grounding part, and the grounding part of the antenna 16 can radiate electromagnetic waves outward to communicate with the external wireless device 71, and due to the signal at the user’s ear 410 The power is reduced, and the communication quality between the ground part of the antenna 16 and the outside world is better.
  • FIG. 6d shows a modification of the wireless earplug 10 shown in Fig. 6a
  • Fig. 6e is a partial enlarged view of K in Fig. 6d
  • Fig. 6f shows the main body 320, its interior and its external components of the wireless earplug 10
  • Figure 6f only shows the relative positional relationship of the internal and external components of the main body 320, and does not show the actual structure of the components in the wireless earplug 10.
  • Figures 6d, 6e and 6f, and Figures 6a, 6b and 6c the difference between FIGS.
  • the radiating part 25 is moved to the outer side of the front end wall 312 (the side close to the front A), and the extended radiating arm 28 covers the main body 310
  • the outer surface of the circumferential sidewall 313 of the, can achieve the effect similar to the wireless earplug 10 in Figs. 6a, 6b and 6c, that is, it can reduce the electric field lines of the antenna 16 on the surface of the second area 432 and the third area
  • the intensity of the induced current excited by the 433 reduces signal power loss and improves the communication quality between the wireless earplug 10 and the external wireless device 71.
  • conductive materials such as metal can also be used to make part or all of the circumferential sidewall 313 of the main body 310, so that the edge of the radiating part 25 is aligned with the circumferential sidewall of the main body 310. 313 is coupled, the portion of the circumferential side wall 313 made of conductive material overlaps with a part of the orthographic projection of the grounding portion on the circumferential side wall 313, and the portion of the circumferential side wall 313 made of conductive material can also be as shown in the figure.
  • the extended radiation arm 28 in 6a, 6b and 6c has similar effects.
  • the radiating portion 25 can also be attached to the front end wall 312. As shown in Figs. 6a and 6d, the radiating portion 25 can also be separated from the front end wall 312, as shown in Figs. 4a, 6a and 6a. Whether the radiation part 25 is attached to or separated from the front end wall 312 in FIG. 6d is only an exemplary representation; and in FIGS. 4a, 6a and 6d, the radiation part 25 is located near the front end wall 311 in the main body 310.
  • the radiating part 25 can be coupled to the ear 410 (it can be a direct coupling as shown in Figures 4a and 6a, or an indirect coupling as shown in Figure 6d. Therefore, the aperture of the antenna 16 is increased (that is, the human body is added as a new radiator on the basis of the radiation part 25), and the radiation performance of the antenna 16 is further improved.
  • FIG. 7a shows a schematic diagram of another wireless earplug 10 when it is worn on the user's ear 410
  • FIG. 7b is a partial enlarged view of L in FIG. 7a
  • FIGS. 7a and 7b Compared with the wireless earplug 10 in FIG. 4a, the wireless earplug 10 shown in FIG.
  • the radiating portion 25 is located on the side of the first circuit board 18a facing the back B, and the first circuit board 18a is facing the back B
  • a side surface exemplarily has a first grounded metal layer 26, the radiating portion 25 is disposed opposite to the first grounded metal layer 26, and the side of the radiating portion 25 facing the front end wall 312 (ie the preset surface 90A) is parallel or approximately parallel to the front end wall 312 (For example, the angle between the side of the radiating part 25 facing the front end wall 312 and the outer side of the front end wall 312 is 0°-30°, for example, it may be 0°, 5°, 10°, 20°, 30° or other Angle); and the feeding portion 21 has a positive feeding terminal 15a coupled to the center of symmetry of the radiating portion 25 (for example only, the feeding point of the positive feeding terminal 15a coupled to the radiating portion 25 can also deviate from the radiating portion 25) and the ground feed terminal 15b coupled to the ground portion of the antenna 16 (FIG.
  • the radio frequency transceiver 13 is illustratively mounted on the first circuit board 18a is a side face away from the back B, the radio frequency transceiver 3 is coupled to the positive feed terminal 15a through the positive signal line 14a and is coupled to the ground feed terminal 15b through the ground signal line 14b.
  • the positive signal line 14a and the positive signal line 14a are arranged at In the flexible radio frequency cable 22 (or other flexible transmission components such as a flexible circuit board), the ground wire 24 shorts the radiating portion 25 and the first grounded metal layer 26; when the shape of the radiating portion 25 is a centrally symmetrical pattern, the positive feed
  • the terminal 15a is coupled to the symmetric center of the radiating part 25, the induced current excited by the antenna 16 in the fourth area 431' can also cancel each other, reducing the signal power loss of the wireless earplug 10, and improving the communication between the wireless earplug 10 and the external wireless device 71 quality.
  • FIG. 8a shows a schematic diagram of another wireless earplug 10 when worn on a user's ear 410
  • FIG. 8b is a partial enlarged view at N in FIG. 8a
  • FIG. 9a shows a slave wireless earplug 10
  • Figs. 8a, 8b and 9a show a schematic diagram of the radiating part 25 when the front A of the earplug 10 is viewed from the back B.
  • Figs. 8a, 8b and 9a The difference between Fig. 8a and Fig. 4a is that each resonance element 20 includes a front wall 312 and a speaker.
  • the radiating portion 25 has a second radiating unit u, and the second radiating unit u includes two separate second sub-radiator 25m and second sub-radiator 25n, and the second sub-radiator
  • the body 25m and the second sub-radiator 25n both exemplarily have a narrow strip structure extending along the same straight line in opposite directions.
  • the second sub-radiator 25m extends along the C direction
  • the second sub-radiator 25n extends along the D
  • the second sub-radiator 25m and the second sub-radiator 25n are exemplarily arranged symmetrically with respect to the plane M, wherein the plane M is perpendicular to the outer side surface of the front end wall 312 (ie, the preset surface 90A);
  • the power feeding portion 21 has Coupled (exemplarily coupled by the feeder line 21am) to the positive feeder terminal 15am of the end of the second sub-radiator 25m in the D direction, coupled (exemplarily coupled by the feeder line 21an) to the second sub-radiator 25m
  • the radio frequency transceiver 13 The positive signal is fed to the power divider 29.
  • the power divider 29 divides the positive signal from the radio frequency transceiver 13 into two signals of equal power. One signal is fed to the positive feed terminal 15am via the positive signal line 14am, and the other signal passes
  • the positive signal line 14an is fed to the positive feed terminal 15an
  • the negative signal from the radio frequency transceiver 13 is fed to the ground feed terminal 15b through the ground signal line 14b;
  • the orthographic projection of the radiation part 25 on the bottom surface of the groove structure of the ear part 410 is In the fifth area 431", the second sub-radiator 25m has a current I3 flowing in the C direction, and the second sub-radiator 25n has a current I4 flowing in the D direction.
  • the current I3 excites an induced current in the fifth area 431" I3'
  • the current I4 excites the induced current I4' in the fifth area 431".
  • the induced current I3' and the induced current I4' are equal in magnitude and opposite to each other, which can cancel each other to reduce signal power loss and improve the wireless earplug 10 and external wireless devices 71 for the purpose of communication quality.
  • the symmetrical arrangement of the second sub-radiator 25m and the second sub-radiator 25n with respect to the plane M is only exemplary.
  • the lengths of the second sub-radiator 25m and the second sub-radiator 25n may not be equal.
  • the length ratio of the second sub-radiator 25m and the second sub-radiator 25n is less than or equal to 1.3, such as 1.3, 1.2, 1.1, or 1.
  • the power divider 29 divides the power divider 29 into the positive signal line 14am and the positive signal line 14an.
  • the signal power can also be unequal, (for example, the ratio of the signal power divided by the power divider 29 to the positive signal line 14am and the positive signal line 14an is less than or equal to 1.3, for example, 1.3, 1.2, 1.1, 1 or other values), as long as it can Ensuring that the currents in the second sub-radiator 25m and the second sub-radiator 25n have components in opposite directions can cause the induced currents excited on the fifth region 431" to cancel at least a part of each other.
  • the power divider 29 Other devices with a power distribution function can also be used instead, as long as it can ensure the synchronization of the positive signals in the second sub-radiator 25m and the second sub-radiator 25n.
  • Fig. 9b shows another schematic diagram of the radiating part 25 when viewed from the front A to the back B of the wireless earplug 10 in Fig. 8a.
  • the difference in Fig. 9b is that the radiating part 25 also includes a The second radiating unit s with the same structure of the two radiating units u, and the second radiating unit s and the second radiating unit u are located parallel or approximately parallel (for example, the included angle is 0°-30°, specifically 0°, 5°, 10°, 20°, 30° or other angles) in the same plane of the outer side of the front end wall 312 (ie, the preset surface 90A).
  • the extension direction of the second radiating unit s is the same as that of the second radiating unit u.
  • the extension directions are perpendicular to each other, and the symmetry center of the second radiating unit s coincides with the symmetry center of the second radiating unit u, and each second sub-radiator in the second radiating unit s is also fed with a synchronous positive signal, so ,
  • the induced currents excited by the second radiating unit s on the bottom surface of the ear portion 410 can also cancel each other; similarly, the radiating portion 25 may also include more (such as 3, 4, 5 or more)
  • the second radiating unit has the same structure as the second radiating unit u, and each second radiating unit is parallel to the front end wall 312, the angle of the extension direction of each second radiating unit can be adjusted according to requirements, and the direction of the second radiating unit u is also For other directions, as long as the second radiating unit u is parallel to the outer side surface of the front end surface 312 (ie, the preset surface 90
  • FIG. 10a shows an exemplary schematic diagram when the wireless earplug 10 is worn on the user's ear 410 when the antenna 16 is set in the handle 320 of the wireless earplug 10
  • FIG. 10b shows For the partial enlarged view at R in FIG. 10a, please refer to FIGS. 10a and 10b.
  • the handle 320 has a third circuit board 30.
  • One side of the third circuit board 30 faces the front side A and the other side faces the back side B.
  • the side of the circuit board 30 facing the plane where the preset surface 90A is located may be parallel to the plane where the outer side of the front wall 312 (ie, the preset surface 90A) is located, or not parallel to the plane where the outer side of the front wall 312 is located, as required.
  • FIG. 10a is only an example showing that the third circuit board 30 faces the plane of the preset surface 90A Parallel to the plane where the outer side surface of the front end wall 312 is located, and the side of the third circuit board 30 facing the back surface B has a third grounded metal layer 34, the third grounded metal layer 34 may be made of conductive traces, conductive film layers, metal
  • the area 27 on the side of the third grounded metal layer 34 facing the back surface B can be used to install components such as the battery 17;
  • the antenna 16 includes a resonant element 40, and the resonant element 40 includes a radiating portion 33 and The power feeding part 31, wherein the radiating part 33 is arranged in the handle 320 and is located on the side of the third circuit board 30 facing the front A.
  • FIG. 10c is a view from the front A to the back B of the wireless earplug 10 in FIG. 10a.
  • the radiating portion 33 is exemplarily rectangular as shown in FIG.
  • the feeding portion 31 includes a coupling (exemplarily coupled through a feeder line 31a) Connected) to the positive feeding terminal 15a at the rectangular symmetry center of the radiating part 33 and the ground feeding terminal 15b coupled to the grounding part, the radio frequency transceiver 13 is coupled to the positive feeding terminal 15a through the positive signal line 14a and is grounded
  • the signal line 14b is coupled to the ground feed terminal 15b.
  • the ground feed terminal 15b is exemplarily coupled to the third ground metal layer 34 (the ground feed terminal) which is at least a part of the ground portion of the antenna 16 15b can also be coupled to the metal skin of battery 17 in area 27), and the third grounded metal layer 34 can also be coupled to the metal skin of battery 17 or other metal structures in handle 310 that can be part of the ground of antenna 16.
  • the sub 15a is coupled to the center of symmetry of the radiating portion 33, and when the user body 310 is worn in the ear portion 410, the side of the radiating portion 33 facing the plane of the preset surface is parallel or approximately parallel to the surface of the sixth region 441, so The induced currents excited by the main body 310 in the sixth area 441 can cancel each other, so as to reduce signal power loss and improve the communication quality between the wireless earplug 10 and the external wireless device 71.
  • FIG. 10d is a schematic diagram of another exemplary radiation portion 33 viewed from the front A to the back B of the wireless earplug 10 in FIG. 10a.
  • the radiation portion 33 is viewed from the front A to the back B of the wireless earplug 10 in FIG. 33 can also be an ellipse with the long axis extending in the direction of C ⁇ D as shown in Figure 10d, a long and narrow structure extending in the direction of C ⁇ D, or other centrally symmetrical figures.
  • the coupling position of the terminal 15a and the radiating portion 33 can refer to the relevant requirements of the radiating portion 25 in the embodiment corresponding to FIGS. 4a to 9b.
  • the battery 17 and other components in the area 27 can be arranged on the side of the third circuit board 30 facing the front surface A, and the radiation portion 33 can be arranged on the side of the third circuit board 30 facing the back surface B; the radiation portion 33 can be connected with
  • the handle 320 is separately arranged, or may be arranged along the inner side wall of the handle 320.
  • the wearable device refers to an electronic device that can be worn on the user's wrist through a strap.
  • the wristband device can be a watch, a smart bracelet, or a wrist-worn device.
  • a telephone or other electronic device that can be worn on the user's wrist through a strap.
  • FIG 11a shows an exemplary schematic diagram of the internal structure of the wristband device.
  • the wristband device 50 includes a wristband 670 and a housing.
  • the housing includes a surrounding wall 610, a display module 620, a transparent cover 630, The fourth circuit board 640, the battery 650 and the bottom cover 660, wherein the display module 620 is formed at the top of the wall 610 (that is, one end along the positive direction of the z-axis) port, and the transparent cover 630 covers the top of the display module 620 On the surface, the bottom cover 660 is installed at the bottom (one end along the negative direction of the z-axis) port of the surrounding wall 610 to encapsulate the bottom port of the surrounding wall 620.
  • the bottom cover 660 exemplarily has opposite inner sides (facing the display module).
  • the inner and outer sides of the bottom cover 660 may be parallel to each other, and the fourth circuit board 640 is disposed on the surrounding wall 610 and the display module.
  • the battery 650 is disposed between the bottom cover 660 and the fourth circuit board 640
  • the outer side of the bottom cover 660 serves as a preset surface (refer to the reference number 90B in Figure 11a) to contact the skin surface of the wrist 610
  • the material of the transparent cover 630 can be Transparent materials such as glass, plastic and diamond
  • the material of the surrounding wall 620 can be conductive materials such as metals (gold, silver, copper, iron, aluminum, etc.) and alloys (such as aluminum alloy and stainless steel, etc.), or plastics, ceramics, etc.
  • the material of the bottom cover 660 can be one or at least two of the insulating materials such as plastic, ceramic, wood, fiber and polymer
  • the combination of these types can also be made of at least one of conductive materials such as metal and graphene, or can include both a part made of an insulating material and a part made of a conductive material
  • the display module 620 may include, for example, Liquid crystal display, OLED (Organic Light-Emitting Diode, organic light emitting diode) display, microLED display or miniLED display; in addition, it should be noted that the foregoing is only an example of setting a display module on the top port of the enclosure 610 620, and the display module 620 can also be replaced with a pointer dial (such as when the wristband device 50 is a pointer watch), a touchpad (such as when the wristband device 50 is a smart bracelet), and a part of the housing An opaque cover plate
  • Fig. 12 shows a schematic diagram of the radio frequency transceiver feeding the antenna. Please refer to Fig. 12.
  • the radio frequency transceiver 53 is coupled to the antenna 52 through a transmission line 54.
  • the control unit 51 is used to control the radio frequency transceiver 53 to transmit and receive radio frequency signals through the antenna 52.
  • the transmission line 54 includes a positive signal line 54a and a ground signal line 54b
  • the antenna 52 includes a resonant element and a ground portion
  • the resonant element includes a power feeding portion and a radiating portion
  • the power feeding portion has a positive feeding terminal coupled to the radiating portion 55a and the ground feeding terminal 55b coupled to the ground of the antenna 52
  • the radio frequency transceiver 53 is coupled to the positive feeding terminal 55a through the positive signal line 54a and to the ground feeding terminal 55b through the ground signal line 54b.
  • the radio frequency transceiver 53 is exemplarily configured on the fourth circuit board 640
  • the bottom cover 610 is made of insulating material
  • a radiating part is exemplarily formed on the side of the bottom cover 610 facing the fourth circuit board 640 661.
  • the radiating portion 661 can be rectangular as shown in FIG.
  • the radiating portion 661 can be a conductive sheet structure formed by conductive traces, conductive film layers (such as metal film layers and graphene film layers, etc.), metal foil or other conductive materials, as shown in Figure 11a
  • the surface of the fourth circuit board 640 facing the bottom cover 610 has a fourth grounded metal layer 641.
  • the fourth grounded metal layer 641 may be a conductive trace, a conductive film layer, a metal sheet, a metal foil, or other conductive structures.
  • Both the metal layer 641 and the metal skin of the battery 650 can be used as at least a part of the grounding part of the antenna 52, or, when the surrounding wall 610 is made of conductive material, it can also be used as at least a part of the grounding part of the antenna 52, or Components made of other conductive materials can be used as at least a part of the ground portion of the antenna 52.
  • FIG. 11a is only an example of coupling the ground feed terminal 55b with the metal skin of the battery 650. If necessary, the ground feed terminal can also be used.
  • the ground feed terminal 55b is shorted to the fourth grounded metal layer 641, the metal skin of the battery 650, the surrounding wall 610 made of conductive material, or other conductive materials in the surrounding wall 610, and the ground feed terminal 55b can also be connected to the fourth grounded metal layer 641 At least two of the metal skin of the battery 650, the surrounding wall 610 made of conductive material, or other conductive materials in the surrounding wall 610 are short-circuited together as the grounding portion of the antenna 52.
  • the bottom cover 660 is made of an insulating material, in addition to the radiation portion 661 formed on the side of the bottom cover 660 facing the fourth circuit board 640 as shown in FIG. 11a, the radiation portion 661 can also be disposed in a state of being separated from the bottom cover 660.
  • the radiating portion 661 is located in the cavity enclosed by the surrounding wall 610, the display module 620 and the bottom cover 660, or the radiating portion 661 may also be formed on the side of the bottom cover 660 away from the fourth circuit board 640 (ie, the preset surface 90B) , It can also be formed inside the bottom cover 660.
  • the thickness of the radiation portion 661 is exemplarily 0.35mm to 1.0mm, for example, it can be 0.35mm, 0.5mm, 0.75mm, 1.0mm or other thickness values; or, the bottom cover 660 Part of the area is made of conductive material, the rest is made of insulating material, the part of the bottom cover 660 made of conductive material is used as the radiating part of the antenna 52, and the positive feeding terminal 15a and the bottom cover 660 are made of conductive material The center of symmetry of the formed part is coupled to the power feed.
  • the bottom cover 660 is made of conductive material as a whole, and the bottom cover 660 is in a circular or rectangular shape with isocentric symmetry, and the bottom cover 660 is used as the radiating part of the antenna 52.
  • the thickness range of the bottom cover 660 is exemplarily 0.7 mm to 1.2 mm, for example, it may be 0.7 mm, 0.9 mm, 1.0 mm, 1.2 mm or other thickness values; and when the surrounding wall 610 is made of conductive material and serves as the antenna 52 When part of the grounding part, the bottom cover 660 and the surrounding wall 610 can be electrically isolated from the bottom cover 660 and the surrounding wall 610 by providing an electrical isolation member made of insulating material including a rubber ring to avoid the radiation part of the antenna 52 Short circuit to ground.
  • the included angle is 0-30°, specifically 0°, 5°, 10°, 20°, 30° or other angles.
  • the bottom cover 610 only needs to be away from the plane where the side of the fourth circuit board 640 (ie, the preset surface 90B) is located.
  • the maximum size of the orthographic projection of the radiating part on the inner surface of the bottom cover 610 ranges from 8mm to 45mm, and can be 8mm or 15mm , 20mm, 30mm, 45mm or other length values.
  • the radiation part 661 since the radiation part 661 has a centrally symmetrical pattern, the positive feeding terminal 55a is coupled to the symmetry center of the radiation part 661.
  • the radiation part 661 When the wristband 670 is worn on the wrist, the radiation part 661 is on the skin of the wrist 510
  • the orthographic projection of the surface is the seventh area 531.
  • the induced currents excited by the current in the radiating part 661 on the surface of the seventh area 531 can cancel each other to reduce the signal power loss of the antenna 52 and improve the communication between the wristband device 50 and other wireless devices. quality.
  • the configuration requirements such as the shape of the radiating portion 661 can refer to the configuration requirements of the radiating portion 25 in the aforementioned embodiment when the wearable device is the wireless earplug 10, when the radiating portion 661 is in a non-centrosymmetric pattern, or is positive
  • the feeding terminal 55a is coupled away from the center of symmetry of the radiating portion 661. As long as it is along the direction of at least one straight line on the plane where the radiating portion 661 is located, the structure with the radiating portion 661 on the opposite sides of the grounding feeding terminal 55a can also achieve reduction.
  • the purpose of the small power loss is that the power loss may be greater than when the positive feeding terminal 55a is coupled to the center of symmetry of the radiating portion 661 in a centrally symmetrical pattern.
  • a detachable connection between the bottom cover 660 and the surrounding wall 610 may be provided to facilitate the replacement of the battery 650 or maintenance; for example, the battery 650 may face the bottom cover 660
  • the surface is covered with an insulating layer (such as a rubber layer, a plastic layer or other insulating material layer), and a spring that expands and contracts in the z direction is arranged on the surface of the insulating layer facing the bottom cover 660 to couple the positive signal line 54a to the spring,
  • the positive feeding terminal 55a on the radiating part 661 compresses the above-mentioned spring, so that the spring is in stable contact with the radiating part 661, realizing the positive signal line 54a and the positive feeding terminal 55a
  • the automatic and stable coupling can always push the bottom cover 660 tightly due to the compression of the spring, ensuring the stability of signal transmission.
  • FIG. 13a exemplarily shows a schematic diagram of the glasses 80 when worn on the user's head 400
  • glasses 80 Exemplarily includes a spectacle frame 712, a lens 720 mounted on the spectacle frame 712, and two spectacle legs 711 respectively connected to the sides of the spectacle frame and used to be attached to and fixed to the side of the head 400.
  • the spectacle leg 711 is equipped with a host part
  • the 730 temple 711 is used for the surface facing the head 400 as a preset surface to contact the surface of the head 400; for example, an enlarged view of the internal structure of the main unit 730 is obtained as viewed in the direction F in FIG.
  • FIG. 13a An enlarged view of the schematic diagram can be as shown in Figure 13b, Figure 13c is a partial enlarged view of T in Figure 13b, please refer to Figure 13b and Figure 13c, the main body part 730 includes a casing, and the temple 711, the frame 712 and the main body part 730 The housings of are used as at least a part of the housing of the glasses 80, where the housing includes a first side wall 731 and a second side wall 732 arranged opposite to each other in the G direction.
  • the outer surface 90C of the second side wall 732 away from the first side wall 731 is arranged in parallel with the preset surface on the temple 711, and when the glasses 80 are worn on the user's head 400, the outer surface of the first side wall 731 90C exemplarily contacts the user's head 400, but the outer side surface 90C of the first side wall 731 may not contact the user's head 400.
  • Figure 14 shows a schematic diagram of the radio frequency transceiver feeding the antenna. Please refer to Figure 14.
  • the radio frequency transceiver 83 is coupled to the antenna 82 through a transmission line 84.
  • the control unit 81 is used to control the radio frequency transceiver 83 to transmit and receive radio frequency signals through the antenna 82.
  • the transmission line 84 includes a positive signal line 84a and a ground signal line 84b.
  • the antenna 82 has a positive feed terminal 88a coupled to the resonant element of the antenna 82 and a ground feed terminal 88b coupled to the ground of the antenna 82,
  • the radio frequency transceiver 83 is coupled to the positive feed terminal 88a through the positive signal line 84a and is coupled to the ground feed terminal 88b through the ground signal line 84b.
  • a battery 735 and a fifth circuit board 733 are arranged between the first side wall 731 and the second side wall 732, wherein the radio frequency transceiver 82 is exemplarily located in the fifth circuit
  • the side of the board 733 facing the first side wall 731, the side of the fifth circuit board 733 facing the second side wall 732 has a fifth grounded metal layer 734, and the resonant element of the antenna 82 includes a radiating part covering the inner side of the second side wall 732 735, and the second side wall 732 has an inner side (the side of the second side wall 732 facing away from the user's head 400 in FIG.
  • the radiating portion 735 is rectangular, circular, elliptical or other centrally symmetrical figures, and the positive feeding terminal 85a passes through the feeding line 736 is coupled to the center of symmetry of the radiating portion 735.
  • Both the metal skin of the battery 735 and the fifth ground metal layer 734 can serve as at least a part of the ground portion of the antenna 82.
  • the ground feed terminal 85b is exemplarily coupled to the fifth ground.
  • Metal layer 734 is exemplarily coupled to the fifth ground.
  • the orthographic projection of the radiation portion 735 on the skin surface of the head 400 is the eighth area 401, because the positive feeding terminal 85a is coupled to the center of symmetry of the radiation portion 735, and the radiation portion 735
  • the surface facing the second side wall 732 is parallel to the surface of the eighth region 401, and the induced currents excited by the current in the radiation portion 735 on the surface of the eighth region 401 can cancel each other to reduce power loss and improve the radiation performance of the antenna 82.
  • the specific form of the antenna 82 is not limited to the form described above.
  • the specific form of the antenna 82 such as the position and shape of the radiating part 735, please refer to the aforementioned wireless earplug 10
  • the setting requirements of the antenna 16 in the embodiment please refer to the aforementioned wireless earplug 10

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Support Of Aerials (AREA)

Abstract

本申请提供了一种可穿戴设备，该可穿戴设备包含了壳体和天线；其中，壳体具有当可穿戴设备佩戴于用户时用于与用户接触的预设表面；天线包括辐射部，以及位于壳体内且用于给辐射部耦合馈电的馈电部，其中，辐射部靠近预设表面所在平面的一面与预设表面所在平面的夹角范围为0°～30°，辐射部上至少包含用于流动至少一对流向相反的电流的辐射结构。当可穿戴设备的预设表面与用户接触时，辐射结构上的每一对流向相反的电流都能在用户皮肤表面激励出一对方向相反的感应电流，这一对方向相反的感应电流能够至少相互抵消一部分，降低了天线的信号功率损耗，天线能够用于与外界无线设备通信的功率增加，进而提升无线耳塞与外界无线设备的通信质量。

Description

一种可穿戴设备
相关申请的交叉引用
本申请要求在2019年8月6日提交中国专利局、申请号为201910722136.6、申请名称为“一种耳塞天线”的中国专利申请的优先权，其全部内容通过引用结合在本申请中；本申请要求在2019年08月15日提交中国专利局、申请号为201910753593.1、申请名称为“一种可穿戴设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及到通信技术领域，尤其涉及到一种可穿戴设备。
背景技术
随着移动通信技术的成熟，无线通信的可穿戴设备已经普及，可穿戴设备包括无线耳塞、智能眼镜、智能手表和智能手环等。
但是，现有技术中的可穿戴设备在使用时，其中的天线发出的信号会被人体损耗掉一部分，导致可穿戴设备与其他设备之间通信质量下降。例如，佩戴在左耳和右耳的无线耳塞彼此之间需要建立良好的通信，才能保证两个无线耳塞相互配合出立体声等音效，而无线耳塞的天线发出的信号很容易被人体吸收，导致无线耳塞音效质量较差。
发明内容
本申请提供了一种可穿戴设备，用以降低其中天线的信号功率损耗，以提升天线与外界无线设备的通信质量，进而提高可穿戴设备的使用体验。
第一方面，提供了一种可穿戴设备，为了降低其中天线的信号功率损耗，并提高天线的通信效果，该可穿戴设备包含了壳体和天线；其中，壳体具有当可穿戴设备佩戴于用户时用于与用户接触的预设表面；天线包括辐射部，以及位于壳体内且用于给辐射部耦合馈电的馈电部，其中，辐射部靠近预设表面所在平面的一面与预设表面所在平面的夹角范围为0°～30°，辐射部上至少包含用于流动至少一对流向相反的电流的辐射结构。当可穿戴设备的预设表面与用户接触时，辐射结构上的每一对流向相反的电流都能在用户皮肤表面激励出一对方向相反的感应电流，这一对方向相反的感应电流能够至少相互抵消一部分，降低了天线的信号功率损耗，天线能够用于与外界无线设备通信的功率增加，进而改善无线耳塞与外界无线设备的通信质量。
在一个具体的实施方案中，由于辐射结构上每一对流向相反的电流中的每个电流在用户皮肤表面激励出的感应电流强度主要和辐射结构上该电流的电流路径长度有关，因此，辐射结构至少包括对称结构，从而，辐射结构上的该对方向相反的电流中的两个电流分别沿该对称结构中对称的电流路径流动，以使辐射结构上每一对电流的电流路径长度尽可能趋于一致，辐射结构上的每一对方向相反的电流大小相等或相近时，辐射结构上每一对流向相反的电流在用户皮肤表面都能激励出一对方向相反且大小相等或相近的感应电流，该对感应电流能够尽可能多的相互抵消，降低天线的信号功率损耗，以提升天线与外界无线 设备的通信质量。
上述辐射结构的形式可以有多种，只要该辐射结构能够沿相反的方向流动至少一对电流即可，在一个具体的实施方案中，辐射结构包括至少一个直线形的第一辐射单元，第一辐射单元包括两个通过端部连接的第一子辐射体；馈电部与第一辐射单元耦合馈电的位置位于两个第一子辐射体的连接处。在一个第一辐射单元中，当馈电部向两个第一子辐射体的连接处耦合馈电时，馈电部提供的电流在两个第一子辐射体的连接处分成两路，其中第一路电流流向第一子辐射体的自由端，第二路电流沿与第一路电流相反的方向流向另一个第一子辐射体的自由端，两路电流能够在用户皮肤表面激励出方向相反并能够相互抵消的一对感应电流；并且，采用这种形式的辐射结构，一个第一辐射单元只需要配置一个馈电部即可产生一对方向相反的电流。
在具体实现时，在一个上述第一辐射单元中，两个第一子辐射体的长度大致相等，以使一个第一辐射单元中的两个第一子辐射体中分别流动的电流的电流路径长度大致相等，例如，在一个第一辐射单元中，一个第一子辐射体与另一个第一子辐射体的长度比大于等于1且小于等于1.3，从而，两个第一子辐射体中流动的电流在用户皮肤表面感应出大小尽可能相等且方向相反的两个感应电流，以使两个感应电流尽可能多的相互抵消。
在一个具体的实施方案中，为了使每个第一辐射单元在用户的皮肤表面的激励出的感应电流尽量不相互干扰，每一个第一辐射单元激励出的感应电流都能够自相抵消，第一辐射单元的个数为多个，且多个第一辐射单元的中心位于同一条垂直于预设表面的直线上。在一些情况下，多个第一辐射单元位于同一平面内且中心重合，有利于节省可穿戴设备内空间，并且，使各个第一辐射单元距离用户皮肤表面的距离尽可能相等，从而，当各第一辐射长度相同或者相近时，各第一辐射单元上流动的电流在用户皮肤表面激励出沿各个方向均匀分布的感应电流，有利于每对感应电流的自相抵消，同时，提升天线的辐射性能。
在另一个具体的实施方案中，辐射结构包括至少一个第一辐射单元，且每个第一辐射单元包括沿直线排列且电隔离的两个第二子辐射体；馈电部分别与每组第一辐射单元中的两个第二子辐射体相邻的一端耦合馈电。当馈电部分别对每组中的两个第一子辐射体耦合馈电时，一路电流由第一个第二子辐射体靠近第二个第二子辐射体的一端向第一个第二自辐射体的另一端流动，而另一路电流由第二个第二子辐射体靠近第一个第二子辐射体的一端向第二个第二自辐射体的另一端流动，两路分别分布于两个第二子辐射体上的电流沿相反的方向流动，能够在用户皮肤表面激励出方向相反且能相互抵消的感应电流。
在具体实施时，为了提高天线的辐射性能，第二子辐射体的个数可以为多个，且多个第二子辐射体呈中心对称排布。
为了使辐射部中的每路电流都能够有与其配对且方向相反的电流，辐射部可以是中心对称图形，且使正馈电端子与辐射部的对称中心耦接，沿辐射部流动的电流在第一区域内激励出的感应电流都能够相互抵消。例如，辐射部可以为圆形、矩形或者椭圆形的导电片。
另外，辐射部的结构可以是平面片状结构，也可以根据可穿戴设备的内部空间进行设置的其他形式，例如，在一个具体的实施方案中，辐射部靠近预设表面所在平面的侧面包括曲面，曲面上任意一点的切面与预设表面的夹角范围为0～30°，以确保在佩戴可穿戴设备时，辐射部能够尽可能与用户皮肤表面趋于平行，从而能够与用户人体充分耦合，提高天线的口径，改善天线的辐射性能。
在一个具体的实施方案中，馈电部包括正馈电端子以及连接辐射部与正馈电端子的馈 电线，馈电线的电流路径长度大于0.01λ且小于0.125λ；馈电线的电流路径与辐射部上流向相反电流中的其中一条电流的电流路径长度之和大于等于0.20λ且小于0.25λ，其中，λ为天线的工作频段对应的传导波长；从而，改善天线的辐射性能。
在一个具体的实施方案中，馈电部耦接至辐射部上的馈电点，馈电点至辐射部的边缘的距离大于等于0.125λ，其中，λ为天线的工作频段对应的传导波长，以使沿任意方向分列于馈电点相对两侧的每对电流的路径长度都不至于相差过大，该对电流在用户皮肤表面激励出的方向相反的感应电流都能够充分相互抵消，并且，由馈电点沿各个方向至辐射部边缘流动的电流分布更加均匀，而不会过于集中在某一个方向上，有利于提升天线的辐射性能，同时延长天线的寿命。
在一个更具体的实施方案中，辐射部呈中心对称图形，馈电点至辐射部的对称中心的距离小于等于0.05λ，λ为天线的工作频段对应的传导波长，以使沿任意方向分列于馈电点相对两侧的每对电流的路径长度都不至于相差过大，该对电流在用户皮肤表面激励出的方向相反的感应电流都能够充分相互抵消，并且，由馈电点沿各个方向至辐射部边缘流动的电流分布更加均匀，而不会过于集中在某一个方向上，有利于提升天线的辐射性能，同时延长天线的寿命。
在具体设置辐射部的位置时，可以有多种方式，在一个具体的实施方案中，天线还包括与辐射部相对设置的接地部；其中，接地部与壳体固定连接；辐射部位于预设表面所在平面与接地部之间；或，辐射部位于接地部背离预设表面所在平面的一侧。
可穿戴设备可以有多种形式，在一种具体形式下，可穿戴设备为无线耳塞，无线耳塞还包括设置在壳体内的扬声器，扬声器位于接地部与预设表面之间，且扬声器的喇叭口朝向预设表面；辐射部位于扬声器与预设表面之间，辐射部能够与人体耦合增加天线的口径，提升辐射性能，或，辐射部位于接地部背离扬声器的一侧，可以避免辐射部对扬声器向预设表面方向的出声造成遮挡，提升用户耳部采集到的扬声器声音的质量。
在一个具体的实施方案中，无线耳塞的壳体包括主体部，主体部包括前端壁及与前端壁连接的周向侧壁；扬声器和接地部均设置于主体部内；其中，前端壁包括相对而置的内侧面及外侧面；辐射部设置在前端壁的内侧面或外侧面，预设表面为外侧面。
在另一个具体的实施方案中，周向侧壁的内侧面或外侧面设有与辐射部耦接的延伸辐射臂，或者，周向侧壁的至少部分结构由导电材料制成且周向侧壁由导电材料制成的部分与辐射部耦接，这样能够利用延伸辐射臂或周向侧壁中由导电材料制成的结构屏蔽掉部分由接地部辐射至用户皮肤表面的电场，减小信号功率损耗，提高无线耳塞与外部无线设备的通信质量。
在具体设置时，延伸辐射臂在周向侧壁上的投影与接地部在周向侧壁上的投影中的一部分重叠；或者，周向侧壁的至少部分结构由导电材料制成，周向侧壁中由导电材料制成的结构在周向侧壁上的投影与接地部在周向侧壁上的投影中的一部分重叠；在避免部分电场由接地部辐射至用户皮肤表面的同时，延伸辐射臂或周向侧壁由导电材料制成的结构没有完全将接地部包裹，天线的接地部可以向外辐射电磁波以与外界无线设备进行通信，并且由于在用户耳部处的信号功率减少，天线的接地部与外界无线设备通信质量更好。
在具体设置无线耳塞时，辐射部的厚度范围可以是0.35mm～1.0mm，避免辐射部过薄导致强度不够，同时，避免辐射部过厚导致辐射部的辐射波长不符合要求；辐射部在前端壁上的正投影的最大尺寸范围为5mm～13mm，以适应无线耳塞内的空间大小。
接地部可以由电路板上的接地金属层、导电迹线或者电池的金属皮等多种形式构成，在一个具体的实施方案中，扬声器中的金属结构也可以作为接地部的至少一部分。
当可穿戴设备为无线耳塞时，壳体包括主体部和柄部，柄部与主体部连接，其中，主体部具有预设表面；接地部和辐射部除了可以设置于主体部内，还可以均设置于柄部内。
在另一种具体的实施方案中，可穿戴设备为腕带设备，壳体包括底盖和围壁，底盖形成于围壁的底部端口，底盖具有相对而置的内侧面和外侧面，预设表面为外侧面；辐射部的形成方式可以有多种，例如，辐射部形成于壳体内部腔体中，或者，辐射部形成于底盖的内侧面、外侧面或者底盖内部，此时，辐射部的厚度范围可以为0.35mm～1.0mm，以同时保证辐射部的强度并同时能辐射出合适波长的电磁波；或者，底盖的至少部分结构由导电材料制成且底盖的由导电材料制成的部分作为辐射部，底盖的厚度范围为0.7mm～1.2mm。
在具体实施时，在腕带设备中，围壁可以由导电材料制成并作为接地部的至少一部分，且底盖整体可以由导电材料制成并作为辐射部，围壁与底盖之间设有电隔离部件，以避免接地部和辐射部之间发生短路。
在一个具体的实施方案中，在腕带设备中，辐射部在底盖的内侧面上的正投影的最大尺寸范围为8mm～45mm，以在充分利用腕带设备内的空间的同时保证天线的辐射强度。
在另一个具体的实施方案中，可穿戴设备还可以为眼镜，当可穿戴设备为眼镜时，壳体包括眼镜腿，预设表面为眼镜腿用于与用户头部接触的表面。
附图说明
图1a为现有技术中无线耳塞佩戴于用户耳部时的示意图；
图1b为图1a中H处的局部放大图；
图2为本申请实施例中的无线耳塞的示意图；
图3为本申请实施例中无线耳塞的一个示例性的外部结构示意图；
图4a为本申请实施例中无线耳塞佩戴于用户耳部时一个示例性的示意图；
图4b为图4a中I处的局部放大图；
图4c为本申请实施例中无线耳塞的主体部及其内部部件的一种示例性的剖视图；
图5a为在图4a中由正面A向背面B的方向观察辐射部的一个示例性地的示意图；
图5b为图4a中的无线耳塞采用图5a中所示的辐射部的结构时天线的驻波仿真效果图；
图5c为图4a中的无线耳塞采用图5a中所示的辐射部的结构时天线的效率图；
图5d为图4a中的无线耳塞采用图5a中所示的辐射部的结构时天线的方向图；
图5e为在图4a中由正面A向背面B的方向观察辐射部的另一个示例性地的示意图；
图5f为在图4a中由正面A向背面B的方向观察辐射部的另一个示例性地的示意图；
图5g为在图4a中由正面A向背面B的方向观察辐射部的另一个示例性地的示意图；
图5h为在图4a中由正面A向背面B的方向观察辐射部的另一个示例性地的示意图；
图6a为本申请实施例中无线耳塞佩戴于用户耳部时另一个示例性的示意图；
图6b为图6a中J处的局部放大图；
图6c为本申请实施例中无线耳塞的主体部及其内部部件的另一种示例性的剖视图；
图6d为本申请实施例中无线耳塞佩戴于用户耳部时另一个示例性的示意图；
图6e为图6d中的K处局部放大图；
图6f为本申请实施例中无线耳塞的主体部、其内部和其外部部件的一种示例性的剖视 图；
图7a为本申请实施例中无线耳塞佩戴于用户耳部时另一个示例性的示意图；
图7b为图7a中L处的局部放大图；
图8a为本申请实施例中无线耳塞佩戴于用户耳部时另一个示例性的示意图；
图8b为图8a中N处的局部放大图；
图9a为在图8a中由正面A向背面B的方向观察辐射部的一个示例性地的示意图；
图9b为在图8a中由正面A向背面B的方向观察辐射部的另一个示例性地的示意图；
图10a为本申请实施例中无线耳塞佩戴于用户耳部时另一个示例性的示意图；
图10b为图10a中R处的局部放大图；
图10c为在图10a中由正面A向背面B的方向观察辐射部的一个示例性地的示意图；
图10d为在图10a中由正面A向背面B的方向观察辐射部的另一个示例性地的示意图；
图11a为本申请实施例中腕带设备的内部结构的一个示例性的示意图；
图11b为在图11a中沿z轴的负方向观察辐射部的一个示例性地的示意图；
图12为本申请实施例中当可穿戴设备为腕带设备时射频收发器向天线馈电的一个示例性的示意图；
图13a为本申请实施例中眼镜佩戴于用户头部时的一个示例性的示意图；
图13b为在图13a中沿F方向观察得到的主机部的内部结构示意图的放大图；
图13c为图13b中的T处局部放大图；
图14为本申请实施例中当可穿戴设备为眼镜时射频收发器向天线馈电的一个示例性的示意图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请作进一步地详细描述。
为了方便理解本申请实施例提供的可穿戴设备，首先说明一下其应用的场景，该可穿戴设备可以是无线耳塞、腕带设备(包括但不限于智能手表和智能手环)和智能眼镜等。可穿戴设备在佩戴于人体时，可穿戴设备中的天线发出的信号容易被人体损耗掉，导致该可穿戴设备其与其他设备的通信质量差。
以无线耳塞为例：
图1a表示出现有无线耳塞在佩戴于用户耳部时的示意图，图1b为图1a中H处的局部放大图，请参考图1a和图1b，无线耳塞包括壳体100，壳体100包括具有扬声器端口111的主体部110和与从主体部110沿Q方向延伸的柄部120，当将主体部110佩戴于耳部210中时，主体部110内的扬声器发出的声音通过扬声器端口111进入耳道220内，此时，柄部120通常接近平行于其在用户面部230上的正投影区231内的皮肤表面(如正投影区231表面)；天线设置于柄部120内，天线包括谐振元件130和接地部133(谐振元件130和接地部133分别由分列于电路基板134相对两侧的金属迹线形成)，一般谐振元件130为倒F型天线或者倒L型天线等单极子天线的谐振元件的形式，继续参考图1a，谐振元件130包括谐振元件臂131和馈电部132，谐振元件臂131和接地部133相对设置且均在柄部120内沿Q方向延伸，馈电部132与谐振元件臂131的P方向上的一端连接，当射频收发器等信号源对馈电部132馈电时，谐振元件臂131中具有沿Q方向的电流I，而电 流I会在用户面部230上的正投影区231内激励出与电流I方向相反的感应电流I’，由于人体具有电阻，感应电流I’的出现会导致无线耳塞的天线的发出的信号被损耗掉一部分，从而，用户头部一侧的耳部210佩戴的无线耳塞用于与其他设备(如智能手表、手机或者用户头部另一侧耳部佩戴的无线耳塞)通信的信号功率就降低，最终，导致无线耳塞与其他设备的通信质量较差。
为了解决上述无线耳塞存在的与其他设备通信质量差的问题，本申请实施例提供了以下无线耳塞10：
图2示例性地表示出了本申请实施例提供的无线耳塞的示意图，请参考图2，无线耳塞10可以通过无线链路72与外部无线设备71进行无线通信，外部无线设备71可以是用于与该无线耳塞10成对配置的另一个无线耳塞，也可以是智能手表、智能眼镜、智能手环或者手机等；无线链路72可以是蜂窝电话链路、近场通信(NFC，Near-Field Communication)链路、
Figure PCTCN2020105597-appb-000001
链路、
Figure PCTCN2020105597-appb-000002
链路、毫米波通信链路、ZigBee链路、NB-IoT链路或其他无线通信链路等。
无线耳塞10还包括控制单元11，控制单元11包括但不限于处理电路和存储电路，其中，处理电路可以包括多个处理器(如微控制器、数字信号处理器、基带处理器和基带处理器等)和存储电路(易失性存储器和非易失性存储器)等。控制单元11可以实现包括蜂窝电话协议、
Figure PCTCN2020105597-appb-000003
协议、
Figure PCTCN2020105597-appb-000004
协议等在内的无线通信协议，以使无线耳塞10能够实现与外部无线设备71的无线通信。
无线耳塞10还包括输入输出部件12，输入输出部件12如用于向用户耳部发声的扬声器和用于识别无线耳塞10是否佩戴于用户耳部的接近传感器等。控制单元11与输入输出部件12耦接(例如，向扬声器发送发声的控制信号或者接收来自接近传感器的无线耳塞10已经佩戴于用户耳部或者与用户耳部分离的信号)。
另外，无线耳塞10还包括射频收发器13(例如蜂窝电话收发器、
Figure PCTCN2020105597-appb-000005
收发器和
Figure PCTCN2020105597-appb-000006
收发器等)和天线16，其中，控制单元11与射频收发器13耦接，射频收发器13通过传输线14与天线16耦接，控制单元11可以控制射频收发器13通过天线16收发信号；示例性地，传输线14包括正信号线14a和接地信号线14b，天线16具有馈电部21(见图4b)，馈电部21具有耦接至天线16中谐振元件20(见图4a)的辐射部25(见图4a和图4b)的正馈电端子15a和耦接至天线16中接地部的接地馈电端子15b，正信号线14a耦接到正馈电端子15a，接地信号线14b耦接到接地馈电端子15b；传输线14可以直接耦接至天线16的谐振元件的辐射部25和天线16的接地部，也可以先耦接至近场耦接馈电部，近场耦接馈电部通过近场耦接的方式与天线16的谐振元件的辐射部或天线16的接地部耦接，例如，正信号线14a直接耦接至近场耦接馈电部，近场耦接馈电部通过近场耦接的方式与天线16的谐振元件的辐射部耦接。
除此之外，无线耳塞10还包括电池17，电池17用于为控制单元11、输入输出部件12、射频收发器13等供电。
图3示出了本申请实施例中无线耳塞10的一个示例性的外部结构示意图，请参考图3，无线耳塞10具有正面A和背面B，且无线耳塞10包括壳体300，壳体300包括主体部310和柄部320，柄部320可以具有细长的延伸结构，由主体部310沿D方向延伸(图3示例性的表示柄部的C方向上的一端与主体部310靠近背面B的一端连接)，柄部320的设置用于方便无线耳塞10与耳部固定，例如，将柄部320卡在用户的耳屏和对耳屏之间，同 时，方便用户抓取柄部320，以方便拿取无线耳塞10，柄部320除了是图3中所示的直条型结构，还可以具有折弯结构，折弯结构可以是用来卡住耳廓，壳体300的材料包括但不限于塑料、碳纤维和陶瓷等介电材料中的一种或者其中任意几种的组合；其中，主体部310具有至少一个用于与耳部内侧面贴合(或者靠近且近似平行)的表面(即预设表面)，示例性地，预设表面可以是图3中主体部310的位于正面A一侧的前端壁312的外侧面(该预设表面可以参考图3中标号90A)，也可以是周向侧壁313的一个侧面，主体部310开设有至少一个扬声器端口311，例如，该扬声器端口311形成于主体部310的前端壁312(但也可设置在主体部310朝向除正面A和背面B以外的其他方向的侧面，该侧面如周向侧壁313，图3没有表示出这种设置方式)，扬声器端口311处安装有防尘网(包括但不限于由塑料和陶瓷材料制成)；需要说明的是，在图3中，主体部310的形状示例性地表示为近似于圆筒，但是，主体部310不一定是圆筒形，还可以是其它形状，例如，常见的有线或者无线耳塞中用于塞进用户耳部的部分的形状。
在一个具体的实施例中，图4a表示出了当无线耳塞佩戴于用户耳部410时的示例性的示意图，图4b为图4a中I处的局部放大图，图4c给出了无线耳塞的主体部320及其内部部件的剖视图，其中，图4c仅仅表示主体部320及其中各部件的相对位置关系，不表示无线耳塞10中各部件的真实结构，请参考图4a、图4b和图4c，在主体部310中，自靠近背面B的一端至靠近正面A的一端，依次设有第一电路板18a、电池17、第二电路板18b、扬声器23和谐振元件20，其中，第一电路板18a、电池17、第二电路板18b、扬声器23和谐振元件20均与主体部310相对固定，扬声器23与扬声器端口311对齐设置，扬声器23的喇叭出口朝向扬声器端口311，谐振元件20包括辐射部25和馈电部21，辐射部25朝向前端壁312的侧面平行或者近似平行于前端壁312的外侧面，例如，辐射部25朝向前端壁312的侧面与前端壁312的外侧面(即预设表面90A)所在平面之间的夹角位于第一设定范围内，该第一设定范围夹角可以为0°～30°，例如，可以是0°、5°、10°、20°和30°等，图4a中仅仅是示例性地表示出辐射部25朝向前端壁312的侧面平行于前端壁312的外侧面；在图4a中，由无线耳塞的正面A向背面B的方向观察，示例性地，辐射部25的形状是如图5a所示的圆形片状结构，辐射部25可以是金属箔、金属膜(例如通过激光镭雕或金属喷涂的形式形成于前端壁312的内侧面)、金属片、石墨烯膜、导电迹线或者其他导电结构形成的导电片状结构，辐射部25可以是由金、银、筒、铝、金属合金、石墨烯和其他导电材料中的任意一种或者几种制成，馈电部21具有耦接至辐射部25圆心的正馈电端子15a和耦接至天线16的接地部的接地馈电端子15b，位于第二电路板18b上的射频收发器13通过正信号线14a耦接至正馈电端子15a，以及通过接地信号线14b耦接至接地馈电端子15b，以分别向天线16的谐振元件20的辐射部25和天线16的接地部馈送射频信号，其中，正信号线14a和接地信号线14b示例性地配置于柔性射频线缆22中，正信号线14a和接地信号线14b也可以是配置于柔性电路板或者其他合适的载体中。
在图4a中，接地馈电端子15b示例性地与扬声器23的金属结构(例如金属外壳)耦接；示例性地，第二电路板18b上还可以具有第二接地金属层19，第二接地金属层19可以是形成于第二电路板18b表面的导电迹线、导电膜层、金属片、金属箔或者其他导电结构，第二接地金属层19还可以形成于第二电路板18b的绝缘介质中间，需要注意的是，在图4a中，第二接地金属层19示例性地位于第二电路板18b朝向背面B的一侧，射频收发器13位于第二电路板18b朝向正面A的一侧，还可以使第二接地金属层19位于第二电 路板18b朝向正面A的一侧，使射频收发器13位于第二电路板18b朝向背面B的一侧，这样，第二接地金属层19可以将射频收发器13和辐射部25电磁隔离，以屏蔽射频收发器13和辐射部25之间的相互干扰，第二接地金属层19可以作为天线16的接地部的至少一部分；第一电路板18a上也可以具有与第二接地金属层19类似的第一接地金属层26，第一接地金属层26也可以作为天线16的接地部的至少一部分；电池17的金属外壳也可以作为天线16的接地部的至少一部分；接地馈电端子15b可以耦接至上述的扬声器23的金属结构、第二接地金属层19、第一接地金属层26或者电池17的金属外壳中的一个或多个，也可以在耦接至扬声器23的金属结构、第二接地金属层19、第一接地金属层26或者电池17的金属外壳中的一个的同时，将扬声器23的金属结构、第二接地金属层19、第一接地金属层26和电池17的金属外壳短接，例如，在图4a中，将扬声器23的金属结构、第二接地金属层19和电池17的金属外壳短接。
继续参考图4a，使无线耳塞10的正面A朝向用户头部，将无线耳塞10的主体部310放置于耳部410的凹槽结构内，且前端壁312的外侧面(即预设表面90A)与耳部410的凹槽结构的底面贴合或者近似平行(通常情况下，前端壁312与耳部410的凹槽结构的底面之间夹角0°～20°，可以是0°、5°、10°、15°或者20°，具体视用户的佩戴情况而定)，扬声器23发出的声音经过前端壁312的扬声器端口311到达耳道420并继续传导至用户听觉系统，辐射部25在耳部410的凹槽结构的底表面的正投影为第一区域431；如图5a所示，可以将圆形片状结构的辐射部25划分为多个沿辐射部25的直径延伸的窄条形的第一辐射单元，其中一个沿C→D方向延伸的第一辐射单元包括分列于圆心(圆心与馈电部21耦接)两侧的且沿辐射部25的半径延伸的第一子辐射体25a和第一子辐射体25b，由辐射部25圆心馈入辐射部25的电流分成沿第一子辐射体25a流动的电流I1和沿第一子辐射体25b流动的电流I2，其中，电流I1和电流I2的电流路径长度相同且方向相反，电流I1在第一区域431内激励出感应电流I1’，电流I2在第一区域431内激励出感应电流I2’，当辐射部25各处阻值均匀(如厚度均匀且材料相同)的情况下，第一区域431内的感应电流I1’和感应电流I2’大小相同方向相反，于是，感应电流I1’和感应电流I2’相互抵消；基于相同的原理，辐射部25中沿另一直径方向延伸的第一辐射单元包括分列于圆心相对两侧的第一子辐射体25c和第一子辐射体25d，第一子辐射体25c内的电流在第一区域431内激励出的感应电流和第一子辐射体25d在第一区域431内激励出的感应电流也能够相互抵消，以此类推，圆形的辐射部25内沿各个直径延伸的第一辐射单元在第一区域431内所激励出的感应电流相互抵消；与图1a中电流I会在正投影区231内激励出较大的且不能被抵消的感应电流I’相比，图4a和图5a中所示的无线耳塞10在佩戴时，辐射部25在第一区域431内激励出的感应电流减小，射频收发器13所产生的射频信号功率在第一区域431内损耗掉的少，用于与外部无线设备71通信的信号功率增加，从而，降低SAR(比吸收率，Specific Absorption Ratio)值，改善无线耳塞10与外部无线设备71的通信质量。
另外，还可以通过接地线24将辐射部25与天线16的接地部短接，如在图4a中，接地线24将辐射部25与扬声器23的金属外壳短接，但是，该接地线24也可以不设置，在不设置接地线24时，可以在一定程度上避免接地线24中的电流在第一区域431激励出感应电流，导致第一区域431中残余较多的感应电流，而提高天线16的信号功率损耗，降低通信质量。
其中，在图5a中，正馈电端子15a示例性地通过馈电线21a连接辐射部25的圆心，将天线16的工作频段对应的传导波长记为λ，馈电线21a的电流路径(图4b中正馈电端子15a至馈电线21a与辐射部25的连接点15j)长度大于0.01λ且小于0.125λ；馈电线21a与辐射部25的连接点15j至辐射部25的边缘任一点的电流路径(相当于辐射部25的圆心至辐射部25边缘上任意一点的路径，即辐射部25的半径)长度与馈电线21a的电流路径长度之和小于等于0.25λ，在一些情况下，仅允许馈电线21a与辐射部25的连接点15j至辐射部25的边缘任一点的电流路径长度与馈电线21a的电流路径长度之和略小于0.25λ(例如大于等于0.20λ且小于0.25λ),这样能够使馈电线21a和辐射部25上的一个经过圆心的电流路径等同于半波振子天线的一个辐射臂，从而改善辐射性能；例如，馈电线21a的电流路径长度为0.01λ且辐射部420的半径为0.23λ，馈电线21a的电流路径长度为0.02λ且辐射部420的半径为0.22λ，馈电线21a的电流路径长度为0.03λ且辐射部420的半径为0.21λ，馈电线21a的电流路径长度为0.04λ且辐射部420的半径为0.20λ，馈电线21a的电流路径长度为0.05λ且辐射部420的半径为0.18λ，馈电线21a的电流路径长度为0.08λ且辐射部420的半径为0.16λ，馈电线21a的电流路径长度为0.14λ且辐射部420的半径为0.09λ，馈电线21a的电流路径长度为0.20λ且辐射部420的半径为0.03λ，或，馈电线21a的电流路径长度为0.22λ且辐射部420的半径为0.01λ。另外，示例性地，辐射部25的厚度范围0.35mm～1.0mm，例如，可以是0.35mm、0.5mm、0.75mm和1.0mm等，当辐射部25朝向前端壁312的平面平行于前端壁312朝向辐射部25的侧面时，辐射部25在前端壁312上的正投影的最大尺寸范围(即该正投影的直径范围，实际上也是辐射部25自身的直径范围)为5mm～13mm，例如可以是5mm、7mm、10mm、13mm或者其他长度，需要注意的是，这里的“辐射部25在前端壁312上的正投影的最大尺寸”应理解为辐射部25在前端壁312上的正投影上距离最大的两点之间的距离。
并且，当采用如图5a中所示的圆形辐射部25，且正馈电端子15a通过馈电线21a连接辐射部25的圆心时，由于辐射部中25的大部分电流会自动选择相对较短的路径到达辐射部25的边缘，而图5a中，正馈电端子15a通过21a对辐射部25进行馈电的点位于辐射部25的圆心，圆心至辐射部25边缘上任意一点的距离相等，那么，电流只会由圆心均匀分布地沿各个方向流至辐射部25的边缘，有利于提升天线16的辐射性能，同时，延长天线16的使用寿命。
图5b表示出了图4a中的辐射部25呈图5a中的形状时的驻波仿真效果，其中，纵坐标表示反射系数(S11参数),单位为dB，横坐标表示频率，单位为GHz标号①所指的曲线为天线16佩戴于用户耳部410时的仿真曲线，标号②所指的曲线为天线16位于自由空间(Free Space,FS)时的仿真曲线，通过图5b可以看出天线16佩戴于用户耳部410时的最佳工作频段2.45GHz和天线16位于自由空间时的最佳工作频段为2.48GHz；图5c给出了天线16的效率图，其中，纵坐标表示频率且单位为dB，横坐标表示频率且单位为GHz，曲线①表示天线16暴露于自由空间时的系统效率曲线，曲线②表示天线16暴露于自由空间时的辐射效率曲线，曲线③表示天线16随无线耳塞佩戴于用户耳部410时的系统效率曲线，图④表示出了天线16随无线耳塞10佩戴于用户耳部410时的辐射效率曲线，通过图5c可以看出，在天线16处于最佳工作频段2.45GHz时，天线16佩戴于用户耳部410时相对于天线16暴露于自由空间时，天线16的系统效率下降约3dB，相对于图1a所示现有技术中采用倒F型天线或者倒L型天线等单极子天线作为无线耳塞的天线时系统效率下 降幅度(一般为6dB～7dB)要小；图5d表示出了天线16的位于自由空间时和随无线耳塞10佩戴于用户耳部410时的方向图，其中，沿方向图的半径方向上轴的单位为dB，曲线①表示出了天线16随无线耳塞佩戴于用户耳部410，且Phi＝0时的方向图，曲线②表示出了天线16暴露于自由空间，且方位角Phi＝0时的方向图，曲线③表示出了天线16暴露于自由空间，且方位角Phi＝0时的方向图，曲线④表示出了天线16随无线耳塞佩戴于用户耳部410，且方位角Phi＝90时的方向图，由图5d可以看出，当天线16暴露于自由空间时，存在一定的辐射盲区，而当天线16佩戴于用户耳部时，能够增强天线16在这些盲区处的辐射强度。
由无线耳塞10的正面A向背面B的方向观察，辐射部25还可以是如图5e所示的矩形，当辐射部25朝向前端壁312的平面平行于前端壁312朝向辐射部25的侧面时，辐射部25在前端壁312上的正投影的最大尺寸(即该正投影的对角线长度范围，实际上也是辐射部25自身的对角线长度范围)为5mm～13mm，例如可以是5mm、7mm、10mm、13mm或者其他长度。正馈电端子15a与辐射部25的对称中心耦接，将辐射部25划分为多个经过辐射部25的对称中心且向各个直线方向延伸的窄条形第一辐射单元，由于矩形为中心对称图形，所以，经过辐射部25的对称中心的第一辐射单元均关于辐射部25的对称中心对称，如第一子辐射体25e和第一子辐射体25f关于辐射部25的对称中心对称，任意一个经过辐射部25的对称中心的窄条形第一辐射单元内的电流在耳部410的凹槽结构的底表面的第一区域431内激励出的感应电流都能够相互抵消，对于矩形的辐射部25整体来说，沿辐射部25表面流动的电流在第一区域431内激励出的感应电流都能够相互抵消；且应当理解的是，当辐射部25绕经过其对称中心的轴线转动至不同角度时，仍然可以达到相同的效果。
除此之外，由无线耳塞10的正面A向背面B的方向观察，辐射部25还可以是正N边形(其中N为正偶数，如正六边形和正八边形等)、椭圆形、平行四边形或者其他中心对称图形，只要使正馈电端子15a与辐射部25的对称中心耦接，沿辐射部25流动的电流在第一区域431内激励出的感应电流都能够相互抵消。
辐射部25除了可以是平面片状图形外，还可以包括部分曲面状结构，或者辐射部25整体为曲面片状结构，也就是辐射部25朝向前端壁312的侧面至少部分为曲面，该曲面上任意一点的切面与预设表面90A的夹角不超过30°，例如可以是0°、5°、10°、20°和30°等。
无线耳塞10的辐射部25还可以是以下类型：
由无线耳塞10的正面A向背面B观察还可是如图5f所示的形状，在图5f中，辐射部25仅由沿直线延伸的一个窄条形第一辐射单元构成，窄条形第一辐射单元延伸方向示例性地平行于前端壁312的外侧面(即预设表面90A)，正馈电端子15a与辐射部25的中心位置耦接，辐射部25包括关于辐射部25中心位置对称的第一子辐射体25g和第一子辐射体25h，第一子辐射体25g内的电流和第一子辐射体25h内电流在第一区域431内激励出的感应电流能够相互抵消；在一些情况下，图5f中的第一子辐射体25g和第一子辐射体25h也均可以是曲线状，且该曲线的上任意一点的切线与预设表面90A所在平面的夹角不超过30°，例如可以是0°、5°、10°、20°和30°等；作为另一种变形，如图5g所示，辐射部25可以包括多个如图5f中所示的沿直线延伸的窄条形第一辐射单元(如第一辐射单元i、第一辐射单元j和第一辐射单元k)，且多个窄条形第一辐射单元之间的夹角大于 零，各个第一辐射单元位于同一平面且中心重合，各个第一辐射单元的长度可以不同也可以相同，正馈电端子15a与各第一辐射单元的中心位置耦接，每个第一辐射单元上的电流在第一区域431内激励出的感应电流均能相互抵消；另外，图5g中的各个第一辐射单元可以分离设置，例如，可以使各第一辐射单元的对称中心沿同一条沿直线延伸的公共轴线排布，且各第一辐射单元示例性地均与该公共轴线垂直，而该公共轴线与预设表面90A垂直(此处的“垂直”并非严格意义上的垂直，例如公共轴线与预设表面90A的垂线的夹角小于等于25°，可以是5°、10°、15°、20°、25°或者其他夹角值)，这样能够保证每个第一辐射单元在用户耳部410的第一区域431表面的激励出的感应电流尽量不相互干扰，每一个第一辐射单元激励出的感应电流都能够自相抵消。图5f中的窄条形第一辐射单元也可以不平行于预设表面90A的所在平面，例如第一辐射单元与预设表面90A所在平面的夹角小于等于30°即可，可以是5°、10°、15°、20°、25°、30°或其他角度。
需要说明的是，若辐射部25的形状为三角形、梯形、正M边形(M为正奇数，如正五边形和正七边形等)不规则图形或者其他非中心对称图形，或者，辐射部25为中心对称图形但是正馈电端子15a与辐射部25中部且除对称中心以外的部分耦接，只要辐射部25整体中包括符合以下条件的辐射结构，该辐射部25均能够在一定程度上达到减小信号功率损耗，提升辐射部25与外部无线设备71的通信质量的目的，该辐射结构满足的条件为：正馈电端子15a耦接至辐射结构上的馈电点，沿辐射结构上经过该馈电点的任意一条直线的方向上，在该馈电点一侧的部分U(例如图5a中的第一子辐射体25a)均在该馈电点另一侧具有与该部分U相匹配的部分V(例如图5a中的第一子辐射体25b)，其中部分U与部分V均属于辐射结构的一部分。例如，图5a、图5e、图5f和图5g中辐射部25整体都是辐射结构；图5h表示的可以是图4a中由无线耳塞10的正面A向背面B观察得到的另一种辐射部25的形式，辐射部25示例性的为圆形角呈钝角的扇形结构，正馈电端子15a耦接至该扇形结构的圆心，在该辐射部25中，区域S2和区域S3中心对称设置并能共同构成一个上述辐射结构，并且，示例性地，如果在区域S2的外延向外继续延伸，导致区域S2不与区域S3中心对称，但由于区域S3中任意一个电流在区域S2中都具有与之方向相反的电流，区域S2和区域S3仍然构成一个上述辐射结构，而由于区域S4缺失，辐射部25中任何一部分的电流都不会与区域S1中的电流方向相反，所以，区域S1不构成上述的辐射结构的一部分。在上述辐射部25中的电流在第一区域431内激励出的感应电流都能虽然会存在残留，但都能相互抵消至少一部分，在一定程度上减小信号功率损耗。
另外，正馈电端子15a耦接至辐射部25上的馈电点，当辐射部25位中心对称图形时，若该馈电点偏离辐射部25的对称中心，该馈电点距离辐射部25的对称中心的距离可以是小于等于0.05λ,例如可以是0.01λ、0.02λ、0.03λ、0.04λ和0.05λ；而无论辐射部25是否是中心对称图形，该馈电点距离辐射部25的边缘大于等于0.125λ，例如可以是0.125λ、0.150λ、0.175λ、0.200λ和0.250λ；其中，λ为天线16的工作频段对应的传导波长；并且，示例性地在一些情况下，由该馈电点沿第一方向至辐射部25边缘上一点的电流路径长度与由该馈电点沿第二方向至辐射部25边缘上的一点的电流路径长度大致相等，该“大致相等”意思是，该馈电点沿第一方向至辐射部25边缘上一点的电流路径长度与由该馈电点沿第二方向至辐射部25边缘上的一点的电流路径长度的比值小于等于1.3，具体可以参考图5f中，第一子辐射体25g和第一子辐射体25h的长度可以不完全相等，如第一子辐射体25g和第一子辐射体25h的长度比小于等于1.3，可以是1、1.1、1.2、1.3或其 他数值。
在另一个具体的实施例中，图6a表示出了图4a所示的无线耳塞10的一种变形，图6b表示出了图6a中J处的局部放大图，图6c给出了无线耳塞10的主体部320及其内部部件的剖视图，其中，图6c仅仅表示主体部320及其中各部件的相对位置关系，不表示无线耳塞10中各部件的真实结构，请参考图6a、图6b及图6c所示，图6a、图6b及图6c所示的无线耳塞10与图4a所示的无线耳塞10的区别在于：辐射部25示例性地与前端壁312的内侧面紧贴设置，主体部310具有与前端壁312边缘连接的周向侧壁313，示例性地，周向侧壁313呈圆周曲面状，前端壁312与周向侧壁313垂直或者近似垂直，周向侧壁313还可以是其他不规则曲面形状，主体部310的周向侧壁313的内侧面覆盖有由导电材料制成的延伸辐射臂28，延伸辐射臂28与辐射部25的边缘耦接，示例性地，延伸辐射臂28可以遮挡一部分接地部并错开另外一部分接地部，即接地部在周向侧壁313上的投影中的一部分与延伸辐射臂28在周向侧壁313上的投影重叠，且延伸辐射臂28靠近正面A的一端至延伸辐射臂28靠近背面B的一端的距离小于等于25mm，例如可以是5mm、10mm、15mm、20mm或25mm，其中，延伸辐射臂28和辐射部25可以采用一体式结构，如通过激光镭雕或金属喷涂的形式在前端壁312内侧面形成金属膜作为辐射部25以及在主体部310的周向侧壁313内侧面形成与辐射部25一体的金属膜作为延伸辐射臂28，延伸辐射臂28和辐射部25还可以采用金属箔、冲压金属片、导电迹线或者其他导电结构形成的导电片状结构。如果不设置延伸辐射臂28，天线16的接地部(如第二接地金属层19、电池17的外壳或第一接地金属层26)会辐射出电场，这些电场会在耳部410的凹槽结构的侧面(如第二区域432的表面和第三区域433的表面)形成较大的感应电流，而在如图6a所示设置沿主体部310的周向侧壁313的内侧面设置延伸辐射臂28后，由于延伸辐射臂28遮挡并屏蔽掉部分由接地部辐射至第二区域432的表面和第三区域433的表面的电场，减小信号功率损耗，提高无线耳塞10与外部无线设备71的通信质量，同时，在一些情况下，延伸辐射臂28没有完全将接地部包裹，天线16的接地部可以向外辐射电磁波以与外界无线设备71进行通信，并且由于在用户耳部410处的信号功率减少，天线16的接地部与外界通信质量更好。
图6d表示出了图6a所示的无线耳塞10的一种变形，图6e是图6d中的K处局部放大图，图6f给出了无线耳塞10的主体部320、其内部和其外部部件的剖视图，其中，图6f仅仅表示主体部320的内部和外部各部件的相对位置关系，不表示无线耳塞10中各部件的真实结构，请参考图6d、图6e和图6f，与图6a、图6b和图6c相比，图6d、图6e和图6f的区别在于，将辐射部25移动至前端壁312的外侧面(靠近正面A的侧面)，且延伸辐射臂28覆盖于主体部310的周向侧壁313的外侧面，能够达到与图6a、图6b和图6c中的无线耳塞10相似的效果，即能够减小天线16的电场线在第二区域432的表面和第三区域433激励出的感应电流强度，减小信号功率损耗，提高无线耳塞10与外部无线设备71的通信质量。
除了图6a和图6d中的形式外，还可以采用金属等导电材料制成主体部310的周向侧壁313的部分或全部结构，使辐射部25的边缘与主体部310的周向侧壁313耦接，周向侧壁313由导电材料制成的部分与接地部在周向侧壁313上的正投影的一部分重叠，周向侧壁313由导电材料制成的部分也能够达到与图6a、图6b和图6c中的延伸辐射臂28相似的效果。
需要说明的是，在图4a中，辐射部25也可以与前端壁312贴合设置，如图6a和图6d中，辐射部25也可以与前端壁312的分离设置，图4a、图6a和图6d中关于辐射部25与前端壁312贴合还是分离设置都只是示例性的表示；且在图4a、图6a和图6d中，由于辐射部25在主体部310内位于靠近前端壁311的一端，当用户将无线耳塞10佩戴于耳部410时，辐射部25能够与耳部410耦接(可以是如图4a和图6a所示的直接耦接，也可是如图6d所示的间接耦接)，从而，增加天线16的孔径(即在辐射部25的基础上增加了人体作为新的辐射体)，进一步提升天线16的辐射性能。
在另一个具体的实施例中，图7a表示出了另一种无线耳塞10佩戴于用户耳部410时的示意图，图7b为图7a中L处的局部放大图，请参考图7a和图7b，与图4a中的无线耳塞10相比，图7a中示出的无线耳塞10区别在于，辐射部25位于第一电路板18a朝向背面B的一侧，且第一电路板18a朝向背面B的一侧面示例性地具有第一接地金属层26，辐射部25与第一接地金属层26相对设置，辐射部25朝向前端壁312的侧面(即预设表面90A)与前端壁312平行或者近似平行(例如，辐射部25朝向前端壁312的侧面与前端壁312的外侧面之间的夹角0°～30°，例如，可以是0°、5°、10°、20°、30°或者其他角度)；而馈电部21具有耦接至辐射部25对称中心的正馈电端子15a(仅是示例性地，正馈电端子15a耦接至辐射部25的馈电点也可以偏离辐射部25的对称中心设置)和耦接至天线16的接地部的接地馈电端子15b(图7a中仅仅是示例性地将接地馈电端子15b耦接至第一接地金属层26，还可以是耦接至接地部的其他部分)；辐射部25在耳部410的凹槽结构的底表面的正投影为第四区域431’，示例性地，射频收发器13示例性地安装于第一电路板18a背离背面B的一侧面，射频收发器3通过正信号线14a耦接至正馈电端子15a以及通过接地信号线14b耦接至接地馈电端子15b，正信号线14a和正信号线14a配置于柔性射频线缆22(或者柔性电路板等其他柔性传输部件)中，接地线24将辐射部25和第一接地金属层26短接；当辐射部25的形状呈中心对称图形时，正馈电端子15a与辐射部25的对称中心耦接，天线16在第四区域431’激励出的感应电流也能够相互抵消，降低无线耳塞10的信号功率损耗，提升无线耳塞10与外部无线设备71的通信质量。
在另一个具体的实施例中，图8a表示出了另一种无线耳塞10佩戴于用户耳部410时的示意图，图8b为图8a中N处的局部放大图，图9a表示出了从无线耳塞10的正面A向背面B观察时辐射部25的示意图，请参考图8a、图8b和图9a，图8a与图4a的区别在于，每个谐振元件20包括一个设置于前端壁312和扬声器23之间辐射部25，该辐射部25具有第二辐射单元u，且该第二辐射单元u包括两个分离设置的第二子辐射体25m和第二子辐射体25n，且第二子辐射体25m和第二子辐射体25n且均示例性地呈沿同一条直线向相反的方向延伸的窄条形结构，如第二子辐射体25m沿C方向延伸，第二子辐射体25n沿D方向延伸，且第二子辐射体25m和第二子辐射体25n示例性地关于平面M对称设置，其中平面M垂直于前端壁312的外侧面(即预设表面90A)；馈电部21具有耦接(示例性地通过馈电线21am耦接)至第二子辐射体25m沿D方向上的末端的正馈电端子15am、耦接(示例性地通过馈电线21an耦接)至第二子辐射体25n沿C方向上的末端的正馈电端子15an和耦接至接地部(图8a中示例性的为耦接至第二接地金属层19)的接地馈电端子15b，射频收发器13向功分器29馈送正信号，功分器29将来自射频收发器13的正信号分成两路功率相等的信号，其中一路信号经由正信号线14am馈送至正馈电端子15am、另一路信号经由正信号线14an馈送至正馈电端子15an，射频收发器13发出的负信号经过接 地信号线14b馈送至接地馈电端子15b；辐射部25在耳部410的凹槽结构的底面的正投影为第五区域431”，第二子辐射体25m中具有沿C方向流动的电流I3，第二子辐射体25n中具有沿D方向流动的电流I4，电流I3在第五区域431”激励出感应电流I3’，电流I4在第五区域431”激励出感应电流I4’,感应电流I3’和感应电流I4’大小相等方向相反，能够相互抵消，达到降低信号功率损耗，提升无线耳塞10与外界无线设备71的通信质量的目的。
需要注意的是，以上第二子辐射体25m和第二子辐射体25n关于平面M对称设置仅仅是示例性的，例如，第二子辐射体25m和第二子辐射体25n的长度可以不相等(示例性地，第二子辐射体25m和第二子辐射体25n的长度比值小于等于1.3，例如可是1.3、1.2、1.1或1)功分器29分给正信号线14am和正信号线14an的信号功率也可以不相等，(示例性地，功分器29分给正信号线14am和正信号线14an信号功率的比值小于等于1.3，例如可是1.3、1.2、1.1、1或者其他数值)，只要能够保证第二子辐射体25m和第二子辐射体25n中的电流具有相反方向的分量就能够使其在第五区域431”上激励出的感应电流相互抵消掉至少一部分。其中，功分器29也可以采用其他具有功率分配功能的器件替代，只要能够保证第二子辐射体25m和第二子辐射体25n内的正信号同步即可。
图9b表示出了在图8a中从无线耳塞10的正面A向背面B观察时辐射部25的另一种示意图，与图9a相比，图9b的区别在于，辐射部25还包括一个与第二辐射单元u结构相同的第二辐射单元s，且第二辐射单元s与第二辐射单元u位于平行或者近似平行(例如夹角为0°～30°，具体可为0°、5°、10°、20°、30°或者其他角度)于前端壁312的外侧面(即预设表面90A)的同一平面内，示例性地，第二辐射单元s的延伸方向与第二辐射单元u的延伸方向相互垂直，且第二辐射单元s的对称中心和第二辐射单元u的对称中心重合，第二辐射单元s中的每个第二子辐射体也均被馈入同步的正信号，因此，第二辐射单元s在耳部410的底表面激励出的感应电流也能够相互抵消；类似地，辐射部25还可以包括更多个(如3个、4个、5个或者更多个)与第二辐射单元u结构相同的第二辐射单元，且各第二辐射单元与前端壁312平行，各第二辐射单元延伸方向的夹角可以根据需求调整，且第二辐射单元u的方向也是其它方向，只要第二辐射单元u平行于前端面312的外侧面(即预设表面90A)即可。
在另一个具体的实施例中，图10a表示出了当天线16设置于无线耳塞10的柄部320中时，无线耳塞10佩戴于用户耳部410时的示例性的示意图，图10b表示出了图10a中R处的局部放大图，请参考图10a和图10b，柄部320中具有第三电路板30，第三电路板30的一侧面朝向正面A且另一侧面朝向背面B，第三电路板30朝向预设表面90A所在平面的侧面可以平行于前端壁312的外侧面(即预设表面90A)所在的平面，也可以不平行于前端壁312的外侧面所在的平面，具体根据需要设置，如夹角为0～30°，具体可以是0°、5°、15°、25°和30°等，图10a仅仅是示例性的表示第三电路板30朝向预设表面90A所在平面与前端壁312的外侧面所在的平面平行，且第三电路板30朝向背面B的一侧面具有第三接地金属层34，第三接地金属层34可以是由导电迹线、导电膜层、金属片、金属箔或者其他导电结构形成，位于第三接地金属层34朝向背面B的一侧的区域27可以用来设置电池17等部件；天线16包括谐振元件40，谐振元件40包括辐射部33和馈电部31，其中，辐射部33设置于柄部320内且位于第三电路板30朝向正面A一侧，当主体部310佩戴于耳部410中时，前端壁312的外侧面作为与用户耳部410底表面接触的预设表 面90A，辐射部33在用户面部皮肤表面440的正投影为第六区域441，图10c为图10a中由无线耳塞10的正面A向背面B观察得到的一种示例性地辐射部33的示意图，辐射部33示例性地呈如图10c所示的矩形，且辐射部33朝向预设表面90A所在平面的侧面示例性地的平行于前端壁312的外侧面(即预设表面)所在平面，以使辐射部33朝向预设表面90A所在平面的侧面能够尽量平行于第六区域441的表面；馈电部31包括耦接(示例性地通过馈电线31a耦接)至辐射部33的矩形对称中心处的正馈电端子15a和耦接至接地部的接地馈电端子15b，射频收发器13通过正信号线14a耦接至正馈电端子15a并通过接地信号线14b耦接至接地馈电端子15b，在图10a中，示例性地将接地馈电端子15b耦接至作为天线16的接地部的至少一部分的第三接地金属层34(接地馈电端子15b还可以耦接至如区域27中电池17的金属表皮)，第三接地金属层34还可以与电池17的金属表皮或者柄部310内的其他可以作为天线16的接地部一部分的金属结构耦接；由于正馈电端子15a耦接至辐射部33的对称中心，且当用户主体部310佩戴于耳部410内时，辐射部33朝向预设表面所在平面的侧面平行或者近似平行于第六区域441的表面，所以主体部310在第六区域441内激励出的感应电流能够相互抵消，以达到减小信号功率损耗，并提升无线耳塞10与外部无线设备71的通信质量的目的。
需要说明的是，图10d为图10a中由无线耳塞10的正面A向背面B观察得到的另一种示例性地辐射部33的示意图，由无线耳塞10的正面A向背面B观察，辐射部33还可以是如图10d所示的长轴沿C→D方向延伸的椭圆形、沿C→D方向延伸的狭长结构或者其他中心对称图形，具体辐射部33的形状等设置要求以及正馈电端子15a与辐射部33的耦接位置可以参考前述图4a～图9b所对应的实施例中辐射部25的相关要求。此外，还可以将区域27内的电池17等部件设置于第三电路板30朝向正面A的一侧，而辐射部33设置于第三电路板30朝向背面B的一侧；辐射部33可以与柄部320分离设置，也可以沿柄部320的内侧壁设置。
接下来，再以可穿戴设备为腕带设备为例，腕带设备是指可以通过带佩戴于用户腕部的电子设备，其中腕带设备可以为手表、智能手环、可佩戴于腕部的电话或者其他可以通过带佩戴于用户腕部的电子设备。
图11a表示出了腕带设备的内部结构示例性的示意图，请参考图11a，腕带设备50包括腕带670和壳体，壳体包括围壁610、显示模组620、透明盖板630、第四电路板640、电池650和底盖660，其中，显示模组620形成于围壁610的顶部(即沿z轴正方向上的一端)端口，透明盖板630覆盖于显示模组620的顶表面，底盖660安装于围壁610的底部(沿z轴负方向上的一端)端口，以封装围壁620的底部端口，底盖660示例性地具有相对而置的内侧面(朝向显示模组620的侧面)和外侧面(背离显示模组620的侧面)，在一些情况下，底盖660的内侧面和外侧面可以相互平行，第四电路板640配置于围壁610、显示模组620和底盖660围成的空间内，且第四电路板640朝向底盖640的平面示例性地平行于底盖660的内侧面，电池650配置于底盖660和第四电路板640之间；当腕带670佩戴于用户的腕部510时，底盖660的外侧面作为预设表面(可参考图11a中的标号90B)与腕部610的皮肤表面接触；透明盖板630的材料可以是玻璃、塑料和金刚石等透明材料；围壁620的材料可以是金属(金、银、铜、铁和铝等)和合金(如铝合金和不锈钢等)等导电材料，也可以是塑料、陶瓷、木材、纤维和聚合物等绝缘材料中的一种或者其中至少两种的组合；底盖660的材料可以是塑料、陶瓷、木材、纤维和聚合物等绝缘材料中的一 种或者其中至少两种的组合，也可以是金属和石墨烯等导电材料中的至少一种制成，还可以是同时包括由绝缘材料制成的部分和由导电材料制成的部分；显示模组620例如可以包括液晶显示屏、OLED(OrganicLight-Emitting Diode，有机发光二极管)显示屏、microLED显示屏或miniLED显示屏；另外，应当说明的是，前面仅仅是示例性地在围壁610的顶部端口设置显示模组620，而显示模组620还可以被替换成指针表盘(如当腕带设备50为指针手表时)、触控板(如当腕带设备50为智能手环时)、作为壳体的一部分的不透明的盖板(如当腕带设备50为不具有显示屏的智能手环时)或者其他需要设置的覆盖部件，在一些情况下，包括作为壳体一部分的不透明的覆盖板在内的覆盖部件还可以和围壁610是一体的。
图12表示出了射频收发器向天线馈电的示意图，请参考图12，射频收发器53通过传输线54与天线52耦接，控制单元51用于控制射频收发器53通过天线52收发射频信号，示例性地，传输线54包括正信号线54a和接地信号线54b，天线52包括谐振元件和接地部，谐振元件包括馈电部和辐射部，馈电部具有耦接至辐射部的正馈电端子55a和耦接至天线52的接地部的接地馈电端子55b，射频收发器53通过正信号线54a耦接至正馈电端子55a并通过接地信号线54b耦接至接地馈电端子55b。
继续回到图11a中，射频收发器53示例性地配置于第四电路板640，底盖610由绝缘材料制成，在底盖610朝向第四电路板640的侧面示例性的形成有辐射部661，其中，沿z轴的负方向观察，辐射部661可以呈如图11b所示的矩形，也可以是椭圆形、圆形、正六边形或其他中心对称图形，正馈电端子55a耦接至辐射部661的对称中心，辐射部661可以是导电迹线、导电膜层(如金属膜层和石墨烯膜层等)、金属箔或其他导电材料等形成的导电片状结构，在图11a中，第四电路板640朝向底盖610的表面具有第四接地金属层641，第四接地金属层641可以是导电迹线、导电膜层、金属片、金属箔或者其他导电结构，第四接地金属层641和电池650的金属皮均可以作为天线52的接地部的至少一部分，或者，当围壁610为导电材料时也可以作为天线52的接地部的至少一部分，或者，围壁610内的其他导电材料构成的部件可以作为天线52的接地部的至少一部分，图11a中仅仅是示例性的将接地馈电端子55b与电池650的金属皮耦接，如果需要，还可以将接地馈电端子55b与第四接地金属层641、电池650的金属皮、导电材料制成的围壁610或者围壁610内的其他导电材料短接，还可以将接地馈电端子55b与第四接地金属层641、电池650的金属皮、导电材料制成的围壁610或者围壁610内的其他导电材料中的至少两个短接共同作为天线52的接地部。另外，当底盖660采用绝缘材料制成时，辐射部661除了如图11a中形成于底盖660朝向第四电路板640的侧面，辐射部661还可以设置为与底盖660分离的状态，即辐射部661位于围壁610、显示模组620和底盖660围成的腔体内，或者，辐射部661也可以形成于底盖660背离第四电路板640的侧面(即预设表面90B)，也可以形成于底盖660内部，辐射部661的厚度范围示例性地为0.35mm～1.0mm，例如可以是0.35mm、0.5mm、0.75mm、1.0mm或者其他厚度值；或者，底盖660的部分面积由导电材料制成，其余部分由绝缘材料制成，底盖660的由导电材料制成的部分作为天线52的辐射部，且正馈电端子15a与底盖660的由导电材料制成的部分的对称中心耦接馈电，再或者，底盖660整体由导电材料制成，且底盖660呈圆形或者矩形等中心对称图形，以底盖660整体作为天线52的辐射部，底盖660的厚度范围示例性地为0.7mm～1.2mm，例如可以是0.7mm、0.9mm、1.0mm、1.2mm或者其他厚度值；且当围壁610由导电材料制 成并作为天线52的接地部的一部分时，底盖660与围壁610之间可以通过设置包括橡胶圈在内的由绝缘材料制成的电隔离部件将底盖660和围壁610电隔离，避免天线52的辐射部与接地部短路。只要保证天线52的辐射部朝向预设表面90B的侧面平行或者近似平行(例如夹角为0～30°，具体可为0°、5°、10°、20°、30°或者其他角度)于底盖610背离第四电路板640的侧面(即预设表面90B)所在的平面即可。其中，辐射部在底盖610的内侧面上的正投影的最大尺寸(例如当底盖610呈圆且整体作为辐射部时，底盖610的直径)范围为8mm～45mm，可以是8mm、15mm、20mm、30mm、45mm或者其他长度值。
在上述腕带设备中，由于辐射部661呈中心对称图形，正馈电端子55a耦接至辐射部661的对称中心，当腕带670佩戴于腕部时，辐射部661在腕部510的皮肤表面的正投影为第七区域531，辐射部661内电流在第七区域531表面激励出的感应电流能够相互抵消，以降低天线52的信号功率损耗，提高腕带设备50与其他无线设备的通信质量。需要说明的是，辐射部661的形状等设置要求可以参考前述关于可穿戴设备为无线耳塞10时的实施例中辐射部25的设置要求，当辐射部661呈非中心对称图形时，或者，正馈电端子55a偏离辐射部661的对称中心耦接，只要沿辐射部661所在平面上的至少一条直线的方向上，接地馈电端子55a相对的两侧均具有辐射部661的结构也能达到减小功率损耗的目的，只是功率损耗可能比将正馈电端子55a耦接至呈中心对称图形的辐射部661的对称中心时大。
在另一个具体的实施方式中，可以将底盖660和围壁610之间设置为可拆卸连接，以方便换更换电池650或者进行维修等；示例性地，可以在电池650朝向底盖660的表面覆盖一层绝缘层(如橡胶层、塑料层或者其他绝缘材质层)，并在该绝缘层朝向底盖660的表面设置沿z方向伸缩的弹簧，将正信号线54a耦接至该弹簧，当底盖660重新安装至围壁610的底部端口时，辐射部661上的正馈电端子55a压缩上述弹簧，以使弹簧与辐射部661稳定接触，实现正信号线54a与正馈电端子55a的自动稳定耦接，由于弹簧被压缩而能始终顶紧底盖660，保证信号传输的稳定性。
以可穿戴设备为包括智能眼镜在内可用于与外界其它无线设备通信的眼镜为例，图13a示例性地表示出了眼镜80佩戴于用户头部400时的示意图，请参考图13a，眼镜80示例性地包括镜框712、安装于镜框712上的镜片720以及两个与分别连接于镜框两侧且用于与头部400的侧面贴合并固定的眼镜腿711，眼镜腿711上安装有主机部730眼镜腿711用于朝向头部400的表面作为预设表面与头部400表面接触；示例性地，在图13a中沿F方向观察得到主机部730的内部结构示意图的放大图，该内部结构示意图的放大图可如图13b所示，图13c为图13b中的T处局部放大图，请参考图13b和图13c，主机部730包括机壳，而眼镜腿711、镜框712和主机部730的机壳都作为眼镜80的壳体的至少一部分，其中，机壳包括沿G方向排列且相对设置的第一侧壁731和第二侧壁732，当眼镜80佩戴于用户头部400时，第二侧壁732背离第一侧壁731的外侧面90C与眼镜腿711上的预设表面示例性地平行设置，且当眼镜80佩戴于用户头部400时，第一侧壁731的外侧面90C示例性地与用户头部400接触，但第一侧壁731的外侧面90C也可以与用户头部400不接触。
图14表示出了射频收发器向天线馈电的示意图，请参考图14，射频收发器83通过传输线84与天线82耦接，控制单元81用于控制射频收发器83通过天线82收发射频信号，示例性地，传输线84包括正信号线84a和接地信号线84b，天线82具有耦接至天线82的 谐振元件的正馈电端子88a和耦接至天线82的接地部的接地馈电端子88b，射频收发器83通过正信号线84a耦接至正馈电端子88a其通过接地信号线84b耦接至接地馈电端子88b。
继续回到图13b和图13c，沿G方向，第一侧壁731和第二侧壁732之间设有电池735和第五电路板733，其中，射频收发器82示例性地位于第五电路板733朝向第一侧壁731的侧面，第五电路板733朝向第二侧壁732的侧面具有第五接地金属层734，天线82的谐振元件包括覆盖于第二侧壁732内侧面的辐射部735，且第二侧壁732具有相对而置的内侧面(图13b中第二侧壁732背离用户头部400的侧面)和外侧面(图13b中第二侧壁732朝向用户头部400的侧面)，第二侧壁732的内侧面和外侧面示例性地相互平行，沿G方向观察，辐射部735呈矩形、圆形、椭圆形或者其他中心对称图形，正馈电端子85a通过馈电线736耦接至辐射部735的对称中心，电池735的金属皮和第五接地金属层734均可至少作为天线82的接地部的至少一部分，接地馈电端子85b示例性的耦接至第五接地金属层734。当用户将眼镜80佩戴于头部400时，辐射部735在头部400皮肤表面的正投影为第八区域401，由于正馈电端子85a耦接至辐射部735的对称中心，且辐射部735朝向第二侧壁732的表面平行于第八区域401表面，辐射部735内的电流在第八区域401的表面激励出的感应电流可以相互抵消达到降低功率损耗，提升天线82辐射性能的目的。
需要说明的是，天线82的具体形式诸如辐射部735的位置和形状等不限于以上描述的形式，天线82的具体形式诸如辐射部735的位置和形状等要求具体可以参考前述关于无线耳塞10的实施例中天线16的设置要求。
另外，本申请实施例的各附图中的部件均只为了表示可穿戴设备的工作原理，并不真实反映各部件的实际尺寸关系。
以上，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (28)

  1. 一种可穿戴设备，其特征在于，包括：壳体和天线；其中，
    所述壳体具有预设表面，所述预设表面为所述可穿戴设备佩戴在用户时与所述用户接触的表面；
    所述天线包括辐射部，以及位于所述壳体内且用于给所述辐射部耦合馈电的馈电部，其中，所述辐射部靠近所述预设表面所在平面的一面与所述预设表面所在平面的夹角范围为0°～30°，且所述辐射部上至少包含用于流动至少一对流向相反电流的辐射结构。
  2. 根据权利要求1所述的可穿戴设备，其特征在于，所述辐射结构至少包括对称结构。
  3. 根据权利要求1或2所述的可穿戴设备，其特征在于，所述辐射结构包括至少一个直线形的第一辐射单元，所述第一辐射单元包括两个通过端部连接的第一子辐射体；
    所述馈电部与所述第一辐射单元耦合馈电的位置位于两个所述第一子辐射体的连接处。
  4. 根据权利要求3所述的可穿戴设备，其特征在于，在一个所述第一辐射单元中，两个所述第一子辐射体的长度大致相等。
  5. 根据权利要求4所述的可穿戴设备，其特征在于，所述第一辐射单元的个数为多个，且多个所述第一辐射单元的中心位于同一条垂直于所述预设表面所在平面的直线上。
  6. 根据权利要求5所述的可穿戴设备，其特征在于，多个所述第一辐射单元位于同一平面内且中心重合。
  7. 根据权利要求3所述的可穿戴设备，其特征在于，在一个所述第一辐射单元中，一个第一子辐射体与另一个第一子辐射体的长度比大于等于1且小于等于1.3。
  8. 根据权利要求1或2所述的可穿戴设备，其特征在于，所述辐射结构包括至少一个第一辐射单元，且每个第一辐射单元包括沿直线排列且电隔离的两个第二子辐射体；
    所述馈电部分别与每组第一辐射单元中的两个第二子辐射体相邻的一端耦合馈电。
  9. 根据权利要求8所述的可穿戴设备，其特征在于，所述第二子辐射体的个数为多个，且多个第二子辐射体呈中心对称排布。
  10. 根据权利要求1或2所述的可穿戴设备，其特征在于，所述辐射结构为圆形、矩形或者椭圆形的导电片。
  11. 根据权利要求1或2所述的可穿戴设备，其特征在于，所述辐射部靠近所述预设表面所在平面的侧面包括曲面，所述曲面上任意一点的切面与所述预设表面的夹角范围为0～30°。
  12. 根据权利要求1所述的可穿戴设备，其特征在于，所述馈电部包括正馈电端子以及连接所述辐射部与所述正馈电端子的馈电线，所述馈电线的电流路径长度大于0.01λ且小于0.125λ；
    所述馈电线的电流路径与所述辐射部上所述流向相反电流中的其中一条电流的电流路径长度之和大于等于0.20λ且小于0.25λ，其中，λ为所述天线的工作频段对应的传导波长。
  13. 根据权利要求1所述的可穿戴设备，其特征在于，所述馈电部耦接至所述辐射部上的馈电点，所述馈电点至所述辐射部的边缘的距离大于等于0.125λ，其中，λ为天线 的工作频段对应的传导波长。
  14. 根据权利要求13所述的可穿戴设备，其特征在于，所述辐射部呈中心对称图形，所述馈电点至所述辐射部的对称中心的距离小于等于0.05λ。
  15. 根据权利要求1-14任一项所述的可穿戴设备，其特征在于，所述天线还包括与辐射部相对设置的接地部；其中，
    所述接地部与所述壳体固定连接；
    所述辐射部位于所述预设表面所在平面与所述接地部之间；或，所述辐射部位于所述接地部背离所述预设表面所在平面的一侧。
  16. 根据权利要求15所述的可穿戴设备，其特征在于，所述可穿戴设备为无线耳塞，所述无线耳塞还包括设置在所述壳体内的扬声器，所述扬声器位于所述接地部与所述预设表面之间，且所述扬声器的喇叭口朝向所述预设表面；
    所述辐射部位于所述扬声器与所述预设表面之间，或，所述辐射部位于所述接地部背离所述扬声器的一侧。
  17. 根据权利要求16所述的可穿戴设备，其特征在于，所述壳体包括主体部，所述主体部包括前端壁及与所述前端壁连接的周向侧壁；所述扬声器和所述接地部均设置于所述主体部内；其中，所述前端壁包括相对而置的内侧面及外侧面；所述辐射部设置在所述前端壁的内侧面或外侧面，所述预设表面为所述外侧面。
  18. 根据权利要求17所述的可穿戴设备，其特征在于，所述周向侧壁的内侧面或外侧面设有与所述辐射部耦接的延伸辐射臂；
    或者，所述周向侧壁的至少部分结构由导电材料制成，且周向侧壁由导电材料制成的部分与所述辐射部耦接。
  19. 根据权利要求18所述的可穿戴设备，其特征在于，所述延伸辐射臂在所述周向侧壁上的投影与所述接地部在所述周向侧壁上的投影中的一部分重叠；
    或者，所述周向侧壁的至少部分结构由导电材料制成，所述周向侧壁中由导电材料制成的结构在所述周向侧壁上的投影与所述接地部在所述周向侧壁上的投影中的一部分重叠。
  20. 根据权利要求16所述的可穿戴设备，其特征在于，所述辐射部的厚度范围为0.35mm～1.0mm。
  21. 根据权利要求16所述的可穿戴设备，其特征在于，所述辐射部在所述前端壁上的正投影的最大尺寸范围为5mm～13mm。
  22. 根据权利要求16～21任一项所述的可穿戴设备，其特征在于，所述扬声器中的金属结构作为所述接地部的至少一部分。
  23. 根据权利要求15所述的可穿戴设备，其特征在于，所述可穿戴设备为无线耳塞，所述壳体包括主体部和柄部，所述柄部与所述主体部连接，其中，所述主体部具有所述预设表面；
    所述接地部和所述辐射部均设置于所述柄部内。
  24. 根据权利要求15所述的可穿戴设备，其特征在于，所述可穿戴设备为腕带设备，所述壳体包括底盖和围壁，所述底盖形成于所述围壁的底部端口，所述底盖具有相对而置的内侧面和外侧面，所述预设表面为所述外侧面；
    所述辐射部形成于所述壳体内部腔体中，或者，所述辐射部形成于所述底盖的内侧面、 外侧面或者所述底盖内部，或者，所述底盖的至少部分结构由导电材料制成且底盖的由导电材料制成的部分作为所述辐射部。
  25. 根据权利要求24所述的可穿戴设备，其特征在于，所述围壁由导电材料制成并作为所述接地部的至少一部分，且所述底盖整体由导电材料制成并作为所述辐射部，所述围壁与所述底盖之间设有电隔离部件。
  26. 根据权利要求24所述的可穿戴设备，其特征在于，当所述辐射部形成于所述壳体内部腔体中，或者，所述辐射部形成于所述底盖的内侧面、外侧面或者所述底盖内部时，所述辐射部的厚度范围为0.35mm～1.0mm；
    当所述底盖的至少部分结构由导电材料制成，且底盖的由导电材料制成的部分作为所述辐射部时，所述底盖的厚度范围为0.7mm～1.2mm。
  27. 根据权利要求24所述的可穿戴设备，其特征在于，所述辐射部在所述底盖的内侧面上的正投影的最大尺寸范围为8mm～45mm。
  28. 根据权利要求15所述的可穿戴设备，其特征在于，所述可穿戴设备为眼镜，所述壳体包括眼镜腿，所述预设表面为所述眼镜腿用于与用户头部接触的表面。
PCT/CN2020/105597 2019-08-06 2020-07-29 一种可穿戴设备 WO2021023083A1 (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201910722136.6 2019-08-06
CN201910722136 2019-08-06
CN201910753593.1A CN112350047B (zh) 2019-08-06 2019-08-15 一种可穿戴设备
CN201910753593.1 2019-08-15

Publications (1)

Publication Number Publication Date
WO2021023083A1 true WO2021023083A1 (zh) 2021-02-11

Family

ID=74367798

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/105597 WO2021023083A1 (zh) 2019-08-06 2020-07-29 一种可穿戴设备

Country Status (2)

Country Link
CN (1) CN112350047B (zh)
WO (1) WO2021023083A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022228113A1 (zh) * 2021-04-25 2022-11-03 华为技术有限公司 天线单元及其制作方法、阵列天线、雷达以及终端
CN116417782A (zh) * 2021-12-31 2023-07-11 荣耀终端有限公司 一种无线耳机及终端天线

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113193337B (zh) * 2021-04-15 2022-11-25 安徽华米健康医疗有限公司 可穿戴设备及其佩戴检测方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120223149A1 (en) * 2010-07-08 2012-09-06 Murata Manufacturing Co., Ltd. Antenna and rfid device
CN106159431A (zh) * 2015-03-25 2016-11-23 美律电子(深圳)有限公司 耦合式栅栏天线
CN205863383U (zh) * 2016-08-11 2017-01-04 深圳市信维通信股份有限公司 一种智能手表的天线系统结构及智能手表
CN109905798A (zh) * 2019-04-08 2019-06-18 成都必盛科技有限公司 无线耳机

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8436776B2 (en) * 2009-07-31 2013-05-07 Intel Corporation Near-horizon antenna structure and flat panel display with integrated antenna structure
CN104167590B (zh) * 2013-05-17 2019-07-12 中兴通讯股份有限公司 降低电磁波吸收比值的终端和天线布局方法
US9722303B2 (en) * 2013-10-01 2017-08-01 Asustek Computer Inc. Wearable electronic device
US10187734B2 (en) * 2014-08-15 2019-01-22 Gn Hearing A/S Hearing aid with an antenna
TWI583060B (zh) * 2014-12-29 2017-05-11 Merry Electronics Co Ltd Coupling antenna
KR101660921B1 (ko) * 2015-08-11 2016-09-28 한국전자통신연구원 기생선로를 이용한 원형편파 gps 안테나
CN206282958U (zh) * 2016-12-21 2017-06-27 无锡村田电子有限公司 无线通信装置
CN206774663U (zh) * 2017-05-17 2017-12-19 梁轩瑜 一种近场通讯天线装置
CN207800895U (zh) * 2017-12-18 2018-08-31 歌尔股份有限公司 一种电子设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120223149A1 (en) * 2010-07-08 2012-09-06 Murata Manufacturing Co., Ltd. Antenna and rfid device
CN106159431A (zh) * 2015-03-25 2016-11-23 美律电子(深圳)有限公司 耦合式栅栏天线
CN205863383U (zh) * 2016-08-11 2017-01-04 深圳市信维通信股份有限公司 一种智能手表的天线系统结构及智能手表
CN109905798A (zh) * 2019-04-08 2019-06-18 成都必盛科技有限公司 无线耳机

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022228113A1 (zh) * 2021-04-25 2022-11-03 华为技术有限公司 天线单元及其制作方法、阵列天线、雷达以及终端
CN116417782A (zh) * 2021-12-31 2023-07-11 荣耀终端有限公司 一种无线耳机及终端天线

Also Published As

Publication number Publication date
CN112350047A (zh) 2021-02-09
CN112350047B (zh) 2022-07-12

Similar Documents

Publication Publication Date Title
WO2021023083A1 (zh) 一种可穿戴设备
CN110416739B (zh) 壳体组件及移动终端
US10644383B2 (en) Wristwatch antennas
JP6005321B2 (ja) 多目的アンテナ
US20170150278A1 (en) Ite hearing aid with improved wireless communication
CN112153508B (zh) 蓝牙耳机
TWI628856B (zh) 無線通訊系統及包含其之穿戴式電子裝置
WO2021136109A1 (zh) 可穿戴设备
US9877119B2 (en) Hearing aid with antenna on printed circuit board
CN106711584B (zh) 天线模组及具有该天线模组的穿戴式电子装置
JP2014007743A (ja) ウエアラブルコンピュータ装置のためのアンテナシステム
CN106707729B (zh) 智能手表
WO2021063255A1 (zh) 可穿戴设备
CN112534640A (zh) 用于可穿戴装置的天线
KR20210015460A (ko) 안테나를 포함하는 웨어러블 전자 장치
CN115442714A (zh) 无线耳机
US20230170609A1 (en) Electronic Device
CN112751171B (zh) 一种天线系统及耳机
EP3185583B1 (en) Hearing aid with antenna on printed circuit board
US11290828B2 (en) Hearing device with antenna functionality in supporting structure
WO2018068190A1 (zh) 一种可穿戴设备
CN115377663B (zh) 无线耳机
WO2021103974A1 (zh) 电子设备
TWI841180B (zh) 天線結構及具有該天線結構的穿戴式裝置
CN218734840U (zh) 无线耳机及双耳真无线耳机

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20850281

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20850281

Country of ref document: EP

Kind code of ref document: A1