WO2022116273A1 - 移动终端天线结构 - Google Patents

移动终端天线结构 Download PDF

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Publication number
WO2022116273A1
WO2022116273A1 PCT/CN2020/136715 CN2020136715W WO2022116273A1 WO 2022116273 A1 WO2022116273 A1 WO 2022116273A1 CN 2020136715 W CN2020136715 W CN 2020136715W WO 2022116273 A1 WO2022116273 A1 WO 2022116273A1
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WO
WIPO (PCT)
Prior art keywords
antenna
mobile terminal
parallel
length
gps
Prior art date
Application number
PCT/CN2020/136715
Other languages
English (en)
French (fr)
Inventor
虞龙杰
Original Assignee
捷开通讯(深圳)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 捷开通讯(深圳)有限公司 filed Critical 捷开通讯(深圳)有限公司
Priority to US18/255,371 priority Critical patent/US20240006768A1/en
Publication of WO2022116273A1 publication Critical patent/WO2022116273A1/zh

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/50Feeding or matching arrangements for broad-band or multi-band operation
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/50Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/52Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/521Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • H01Q21/30Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30Arrangements for providing operation on different wavebands
    • H01Q5/307Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/314Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • H01Q5/335Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30Arrangements for providing operation on different wavebands
    • H01Q5/307Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H01Q5/364Creating multiple current paths
    • H01Q5/371Branching current paths
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30Arrangements for providing operation on different wavebands
    • H01Q5/378Combination of fed elements with parasitic elements
    • H01Q5/385Two or more parasitic elements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/30Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Definitions

  • the present invention relates to the field of antenna technology, and in particular, to an antenna structure of a mobile terminal.
  • GPS L1 Global Positioning System Level 1
  • 5G Fifth Generation , 5th generation communication technology
  • dual GPS Global Positioning System, global positioning system
  • GPS L5 Global Positioning System Level 5
  • the frequency corresponding to L5 is 1176MHz.
  • an existing design scheme is that one antenna integrates GPS L1 and Wi-Fi (wireless Internet access) functions, and the other antenna integrates GPS L5 and Wi-Fi. -Fi function; another existing design scheme is that one antenna integrates GPS L1 and Wi-Fi functions, and the other antenna only does GPS L5 function.
  • the existing antenna design scheme can realize the function of dual GPS, at least two antennas are required, and two slots need to be opened in the metal machine or the injection molding machine in the film, and the structural strength of the mobile phone will be weakened, and if it is a metal machine, it will also be Affects the appearance of the metal machine.
  • Embodiments of the present invention provide an antenna structure for a mobile terminal, which integrates GPS L1 and GPS through one antenna.
  • L5, Wi-Fi 2.4G, Wi-Fi 5G and LTE B32 (Long Term Evolution) function which can improve the structural strength of the mobile terminal and the visual effect of the appearance of the mobile terminal, with better free space and head-to-hand performance.
  • an embodiment of the present invention provides an antenna structure for a mobile terminal, where the antenna structure includes a first antenna, a second antenna, a third antenna, a fourth antenna, a fifth antenna, a sixth antenna, a matching circuit, and a feed point ;
  • a spacer is provided between one end of the first antenna and one end of the second antenna;
  • One side of the spacer is provided with the fourth antenna, the fourth antenna is parallel to the second antenna, one end of the fifth antenna is opposite to one end of the fourth antenna, and the fifth antenna is arranged opposite to one end of the fourth antenna.
  • the side of the antenna is provided with the third antenna, the third antenna is parallel to the second antenna, the sixth antenna is connected to the third antenna, and the side of the third antenna is provided with the feed point;
  • the third antenna is at least partially arranged opposite to the fourth antenna and at least partly arranged opposite to the first antenna;
  • the fifth antenna, the sixth antenna and the third antenna are electrically connected and intersect at one point, one end of the matching circuit is connected to the fifth antenna, the sixth antenna and the third antenna, and the other end of the matching circuit connected to the feed point.
  • the first antenna is a curved antenna
  • the curved antenna includes a first part antenna and a second part antenna, and one end of the second part antenna is connected to the One end of the second antenna is provided with the spacer, and the other end of the second part of the antenna is connected to the first part of the antenna;
  • the sixth antenna includes a third part antenna, a fourth part antenna and a fifth part antenna, the fifth part antenna is arranged in parallel with the fourth part antenna, and the fourth part antenna is parallel to the second part antenna
  • the third part of the antenna is relatively parallel to the first part of the antenna.
  • the length of the first part of the antenna is in the range of 13mm to 17mm, and the length of the second part of the metal frame antenna is in the range of 10mm to 14mm.
  • the distance between the first part of the antenna and the grounding area of the metal middle frame of the mobile terminal is 7mm to 9mm
  • the distance between the second antenna and the grounding area of the metal middle frame of the mobile terminal is in the range of 7 mm to 9 mm. 5mm to 7mm.
  • the width of the slot is 1 mm.
  • the length of the fourth antenna ranges from 2.5mm to 3.5mm, and the distance between the fourth antenna and the second antenna ranges from 0.4mm to 0.6mm.
  • the fifth antenna includes a sixth part of the antenna and a seventh part of the antenna, the sixth part of the antenna is vertically connected to the seventh part of the antenna, and the sixth part of the antenna is connected vertically.
  • One end of the antenna is arranged opposite to one end of the fourth antenna, the sixth part of the antenna is parallel to the second antenna, the seventh part of the antenna is parallel to the first part of the antenna, and the sixth part of the antenna is parallel to the second antenna.
  • the distance between the second antennas ranges from 0.4 mm to 0.6 mm, and the seventh antenna, the sixth antenna and the third antenna intersect at one point.
  • the length of the second antenna ranges from 25mm to 29mm.
  • the fifth antenna, the fourth antenna, the sixth antenna and the third antenna are LDS antennas.
  • the first antenna and the second antenna are metal frame antennas.
  • an embodiment of the present invention provides an antenna structure for a mobile terminal, where the antenna structure includes a first antenna, a second antenna, a third antenna, a fourth antenna, a fifth antenna, a sixth antenna, a matching circuit, and a feed point ;
  • a spacer is provided between one end of the first antenna and one end of the second antenna;
  • One side of the spacer is provided with the fourth antenna, the fourth antenna is parallel to the second antenna, one end of the fifth antenna is opposite to one end of the fourth antenna, and the fifth antenna is arranged opposite to one end of the fourth antenna.
  • the side of the antenna is provided with the third antenna, the third antenna is parallel to the second antenna, the sixth antenna is connected to the third antenna, and the side of the third antenna is provided with the feed point;
  • the third antenna is at least partially arranged opposite to the fourth antenna and at least partly arranged opposite to the first antenna;
  • the fifth antenna, the sixth antenna and the third antenna are electrically connected and intersect at one point, one end of the matching circuit is connected to the fifth antenna, the sixth antenna and the third antenna, and the other end of the matching circuit connected to the feed point.
  • the length of the third antenna ranges from 5mm to 7mm.
  • the first antenna is a curved antenna
  • the curved antenna includes a first partial antenna and a second partial antenna, and an end of the second partial antenna is provided between one end of the second antenna and one end of the second antenna. In the spaced area, the other end of the second part of the antenna is connected to the first part of the antenna;
  • the sixth antenna includes a third part antenna, a fourth part antenna and a fifth part antenna, the fifth part antenna is arranged in parallel with the fourth part antenna, and the fourth part antenna is parallel to the second part antenna
  • the third part of the antenna is relatively parallel to the first part of the antenna.
  • the length of the first part of the antenna is in the range of 13mm to 17mm, and the length of the second part of the antenna is in the range of 10mm to 14mm.
  • the distance between the first part of the antenna and the grounding area of the metal middle frame of the mobile terminal ranges from 7 mm to 9 mm, and the distance between the second antenna and the grounding area of the metal middle frame of the mobile terminal ranges from 5 mm to 7 mm.
  • the width of the groove is 1 mm.
  • the length of the fourth antenna is in the range of 2.5 mm to 3.5 mm, and the distance between the fourth antenna and the second antenna is in the range of 0.4 mm to 0.6 mm.
  • the fifth antenna includes a sixth part of the antenna and a seventh part of the antenna, the sixth part of the antenna is vertically connected to the seventh part of the antenna, and one end of the sixth part of the antenna is connected to the fourth antenna.
  • One end of the antenna is opposite to each other, the sixth part of the antenna is parallel to the second antenna, the seventh part of the antenna is parallel to the first part of the antenna, the distance between the sixth part of the antenna and the second antenna 0.4mm to 0.6mm, the seventh antenna, sixth antenna and third antenna intersect at one point.
  • the length of the second antenna ranges from 25mm to 29mm.
  • the fifth antenna, the fourth antenna, the sixth antenna and the third antenna are LDS antennas.
  • first antenna and the second antenna are metal frame antennas.
  • the mobile terminal antenna structure provided by the embodiment of the present invention includes a first antenna, a second antenna, a third antenna, a fourth antenna, a fifth antenna, a sixth antenna, a matching circuit, and a feed point; one end of the first antenna and One end of the second antenna is provided with a spacer; one side of the spacer is provided with the fourth antenna, the fourth antenna is parallel to the second antenna, and one end of the fifth antenna is parallel to the second antenna.
  • One end of the fourth antenna is oppositely arranged, the side of the fifth antenna is arranged with the third antenna, the third antenna is parallel to the second antenna, and the sixth antenna is parallel to the third antenna connection, the feed point is provided on the side of the third antenna; the third antenna is at least partially parallel to the fourth antenna and at least partially parallel to the first antenna; the fifth antenna, The sixth antenna and the third antenna are electrically connected and intersect at one point, one end of the matching circuit is connected to the fifth antenna, the sixth antenna and the third antenna, and the other end of the matching circuit is connected to the feed point .
  • a metal frame antenna is coupled with an LDS (Laser Direct Structuring, laser direct structuring) antenna disposed on the plastic bracket of the mobile terminal to form a five-in-one antenna (that is, one antenna integrates GPS L1, GPS L5, Wi-Fi 2.4G, Wi-Fi 5G and LTE B32 function), only one antenna is needed to realize the function of dual GPS (GPS L1 and GPS L5), compared with using at least two antennas to realize the function of dual GPS, it reduces the need for metal machine or injection molding machine in the film
  • the number of slots on the type of mobile terminal improves the structural strength of the mobile terminal and the visual effect of the appearance of the mobile terminal.
  • the five-in-one antenna is located in the upper left corner of the back of the mobile terminal, it is less affected by the head and hand. , therefore, the head-to-hand performance is also better.
  • FIG. 1 is a schematic structural diagram of an antenna structure of a mobile terminal according to an embodiment of the present invention.
  • FIG. 2 is a return loss diagram of a shallow resonance at 2.4 GHz provided by an embodiment of the present invention.
  • FIG. 3 is a return loss diagram of 2.4 GHz and 1.5 GHz resonance provided by an embodiment of the present invention.
  • FIG. 4 is a return loss diagram after adding an LTE B32 antenna and a Wi-Fi 5G antenna according to an embodiment of the present invention.
  • FIG. 5 is a return loss diagram after the inductors are combined according to an embodiment of the present invention.
  • FIG. 6 is a return loss diagram after adding a complete matching circuit according to an embodiment of the present invention.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as “first”, “second” may expressly or implicitly include one or more of said features. In the description of the present invention, “plurality” means two or more, unless otherwise expressly and specifically defined.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be mechanical connection, electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction of two elements relation.
  • installed should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be mechanical connection, electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction of two elements relation.
  • a first feature "on” or “under” a second feature may include the first and second features in direct contact, or may include the first and second features Not directly but through additional features between them.
  • the first feature being “above”, “over” and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature is “below”, “below” and “below” the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.
  • An embodiment of the present invention provides an antenna structure of a mobile terminal.
  • the mobile terminal antenna structure includes a first antenna, a second antenna, a third antenna, a fourth antenna, a fifth antenna, a sixth antenna, a matching circuit 16 and a feed point 17;
  • a spacer 18 is provided between one end of the first antenna 10 and one end of the second antenna 11;
  • One side of the spacer 18 is provided with the fourth antenna 13, the fourth antenna 13 is parallel to the second antenna 11, one end of the fifth antenna 14 is opposite to one end of the fourth antenna 13, the fifth antenna
  • the side of the 14 is provided with the third antenna 12, the third antenna 12 is parallel to the second antenna 11, the sixth antenna 15 is connected with the third antenna 12, and the feeder is provided on the side of the third antenna 12. point 17;
  • the third antenna 12 is at least partially arranged in parallel with the fourth antenna 13 and at least partially arranged in parallel with the first antenna 10;
  • the fifth antenna 14 , the sixth antenna 15 and the third antenna 12 are electrically connected and intersect at one point.
  • One end of the matching circuit 16 is connected to the fifth antenna 14 , the sixth antenna 15 and the third antenna 12 .
  • the matching circuit The other end of 16 is connected to the feed point 17 .
  • the fourth antenna 13 is disposed on the right side of the slot 18
  • the fifth antenna 14 is disposed below the fourth antenna 13
  • the third antenna 14 is disposed on the right side of the fifth antenna 14 .
  • Antenna 12 the sixth antenna 15 is disposed above the third antenna 12, and one end of the sixth antenna 15 is connected to one end of the third antenna 12, and the feed point 17 is disposed on the right side of the third antenna 12 .
  • the coupling between the feed point 17 and the first antenna 10 and the second antenna 11 will produce a 2.4
  • the shallow resonance of GHz (as shown in FIG. 2 ); on the basis of the shallow resonance of 2.4 GHz, the fifth antenna 14 is coupled with the second antenna 11 to generate a new resonance near 1.5 GHz, as shown in FIG. 3 , the resonances marked M1 to M2 are resonances at 1.5 GHz.
  • the antenna length of the fifth antenna 14 is 15 mm, that is, the coupling length between the fifth antenna 14 and the second antenna 11 is 15 mm. The coupling length is very important, and it is necessary to adjust the coupling length to generate a resonance near 1.5GHz.
  • the resonance will disappear; if the coupling length is too short, the bandwidth of the resonance will be reduced; add a sixth antenna 15 can deepen the resonance of 1.5GHz.
  • the function of the sixth antenna 15 is to adjust the resonance of the 1.5GHz. If the sixth antenna 15 is too long, the resonance will become shallower, and the resonance will be shifted to low frequencies.
  • the function of the third antenna 12 Yes adjust Wi-Fi For the resonance of 5G, if the third antenna 12 is too long, the resonance will become shallower, and the resonance will be shifted to low frequencies.
  • the length of the third antenna 12 is in the range of 5mm to 7mm, as shown in FIG.
  • Wi-Fi 2.4G and Wi-Fi 5G are significantly deepened; on the basis of the first antenna 10, the second antenna 11, the third antenna 12, the fourth antenna 13, the fifth antenna 14 and the sixth antenna 15, adding Matching circuit 16, that is, starting from the antenna end, first connect an inductance of 2.4nH, and then a capacitor of 1.5pF in series.
  • the function of the inductance can be described as, from the Smith chart, the resonant point of GPS L1 and GPS L5 from the third The quadrant pulls down the first quadrant; from Figure 5, two resonances at 1.3GHz and 1.6GHz are separated from a 1.5GHz resonance; the effect of capacitance can be described as: from the Smith chart, GPS L1 and GPS L1 and 1.6GHz are separated. GPS The resonance point of L5 is pulled from the first quadrant to the vicinity of the center point. From Figure 6, the two resonances of 1.3GHz and 1.6GHz are pulled to the vicinity of the frequency points of GPS L1 and GPS L5.
  • the order of implementation of the five-in-one antenna is Wi-Fi first The resonance of 2.4GHz, then the resonance of 1.5GHz, and then by adjusting the antenna matching circuit, the resonance of 1.5GHz is divided into two resonances of GPS L1 and GPS L5, and finally the length of the LDS antenna is fine-tuned to get the resonance of Wi-Fi 5G .
  • the first antenna 10 is a curved antenna
  • the curved antenna includes a first part antenna 101 and a second part antenna 102 , one end of the second part antenna 102 and one end of the second antenna 11 are between
  • the spacer 18 is arranged between the two parts, and the other end of the second part of the antenna 102 is connected to the first part of the antenna 101;
  • the sixth antenna 15 includes a third part antenna 151 , a fourth part antenna 152 and a fifth part antenna 153 , the fifth part antenna 153 is arranged in parallel with the fourth part antenna 13 , and the fourth part antenna 152 is opposite to the second part antenna 153
  • the partial antennas 102 are arranged relatively parallel to each other, and the third partial antenna 151 is arranged relatively parallel to the first partial antenna 101 .
  • the first antenna 10 is composed of a first part of the antenna 101 and a second part of the antenna 102, the first part of the antenna 101 is located on the upper side of the mobile terminal, the second part of the antenna 102 is located on the side of the mobile terminal, and the second part of the antenna 11 is also located on the side of the mobile terminal.
  • the first antenna 10 and the second antenna 11 are metal frame antennas. That is, it is only necessary to set the slot 18 between one end of the second part of the antenna 102 and the second antenna 11, then the five-in-one antenna formed by the coupling of the metal frame antenna and the LDS antenna disposed on the plastic bracket of the mobile terminal can be realized.
  • Dual GPS GPS L1 and GPS L5 functions, compared with the use of at least two antennas to realize the dual GPS function, the number of slots on the mobile terminal is reduced, and the structural strength of the mobile terminal and the appearance and visual effects of the mobile terminal are improved.
  • the length of the first partial antenna 101 ranges from 13 mm to 17 mm, and the length of the second partial antenna 102 ranges from 10 mm to 14 mm.
  • the coupling between the feed point 17 and the first antenna 10 and the second antenna 11 produces a shallow resonance of 2.4 GHz, as shown in FIG. 2, the resonances marked M3 to M4 in the figure is the resonance of Wi-Fi 2.4GHz
  • the length of the first antenna 10 and the second antenna 11 will affect the frequency of the shallow resonance, that is to say, if the first antenna 10 is lengthened, the shallow resonance will be shifted to the low frequency
  • the first antenna 10 is shortened, the shallower resonance deviates to the high frequency
  • the second antenna 11 is lengthened, the shallower resonance deviates to the low frequency
  • the second antenna is shortened, the shallower resonance deviates to the high frequency
  • the length of the first part of the antenna 101 is set to 15mm
  • the length of the corresponding second part of the antenna 102 is set to 12mm
  • the length of the corresponding second part of the antenna 11 is set to 27mm, so that the shallow resonance can just fall Near 2.4GHz.
  • the setting of the point 17 position also needs to be considered.
  • the distance between the first antenna 101 and the grounding area 19 of the metal middle frame of the mobile terminal is 7 mm to 9 mm, and the distance between the second antenna 11 and the grounding area 19 of the metal middle frame of the mobile terminal is 5 mm to 7 mm.
  • the main purpose of setting this distance range is to ensure the performance of the five-in-one antenna and prevent excessive interference from the grounding area 19 of the metal middle frame.
  • the distance between the first part of the antenna 101 and the grounding area 19 of the metal middle frame of the mobile terminal is 8 mm, and the distance between the second antenna 11 and the grounding area 19 of the metal middle frame of the mobile terminal is 6 mm, which is the optimal distance, and this distance can make the five One antenna performs best.
  • the width of the slot 18 is 1 mm.
  • the coupling between the first antenna 10 and the second antenna 11 In order to enhance the energy of the GPS L5 frequency point, it is necessary to enhance the coupling between the first antenna 10 and the second antenna 11, so that the resonance of 1.5GHz is shifted to the low frequency by about 50MHz, and the coupling between the metal frame antenna 10 and the second antenna 11 can be enhanced by Adjusting the distance between the first antenna 10 and the second antenna 11, that is, adjusting the width of the slot 18, and setting the width of the slot 18 to 1 mm, can enhance the coupling between the first antenna 10 and the second antenna 11, thereby enhancing the GPS L5 frequency point energy of.
  • the fourth antenna 13 is added, and the area of the fourth antenna 13 can cover the second part of the antenna 102 and a part of the second antenna 11 .
  • the length of the fourth antenna 13 ranges from 2.5 mm to 3.5 mm, and the distance between the fourth antenna 13 and the second antenna 11 ranges from 0.4 mm to 0.6 mm.
  • the length range of the fourth antenna 13 is set to 2.5 mm to 3.5 mm, so that the area of the fourth antenna 13
  • the second antenna 102 and a part of the second antenna 11 can be covered, so as to enhance the coupling between the first antenna 10 and the second antenna 11, thereby enhancing the energy of the GPS L5 frequency point.
  • the length range (2.5mm to 3.5mm) of the fourth antenna 13 and the distance range (0.4mm to 0.6mm) between the fourth antenna 13 and the second antenna 11 can ensure the best performance of the five-in-one antenna
  • the optimal length of the fourth antenna 13 is 3 mm
  • the optimal distance between the fourth antenna 13 and the second antenna 11 is 0.5 mm.
  • the fifth antenna 14 includes a sixth part antenna 141 and a seventh part antenna 142, the sixth part antenna 141 and the seventh part antenna 142 are vertically connected, and one end of the sixth part antenna 141 is connected to the sixth part antenna 141.
  • One ends of the four antennas 13 are disposed opposite to each other, the sixth antenna 141 is parallel to the second antenna 11 , the seventh antenna 142 is parallel to the first antenna 101 , and the sixth antenna 141 is parallel to the second antenna 11 .
  • the distance ranges from 0.4mm to 0.6mm, and the seventh antenna 142, the sixth antenna 15 and the third antenna 12 intersect at one point.
  • setting the distance range between the sixth antenna 141 and the second antenna 11 to 0.4 mm to 0.6 mm can ensure the optimal performance of the five-in-one antenna, and the distance between the sixth antenna 141 and the second antenna 11
  • the optimum distance is 0.5mm.
  • the length of the second antenna 11 ranges from 25mm to 29mm.
  • the coupling between the feed point 17 and the first antenna 10 and the second antenna 11 produces a shallow resonance of 2.4 GHz, as shown in FIG. 2, the resonances marked M3 to M4 in the figure is the resonance of Wi-Fi 2.4GHz
  • the length of the first antenna 10 and the second antenna 11 will affect the frequency of the shallow resonance, that is to say, if the first antenna 10 is lengthened, the shallow resonance will be shifted to the low frequency
  • the first antenna 10 is shortened, the shallower resonance deviates to the high frequency
  • the second antenna 11 is lengthened, the shallower resonance deviates to the low frequency
  • the second antenna 11 is shortened, the shallower resonance deviates to the high frequency Therefore, it is necessary to comprehensively adjust the first antenna 10 and the second antenna 11 to an appropriate length, so that the shallow resonance falls just around 2.4 GHz, so the length of the second antenna 11 is set to 25mm to 29mm.
  • the length of the second antenna 11 when the length of the second antenna 11 is set to 27mm, the length of the corresponding first part of the antenna 101 is set to 15mm, and the length of the corresponding second part of the antenna 102 is set to 12mm, so that the shallow resonance can be made to fall at 2.4mm. around GHz.
  • the fifth antenna 14, the fourth antenna 13, the sixth antenna 15 and the third antenna 12 are LDS antennas.
  • LDS antenna technology is laser-direct-structuring technology, which uses a computer to control the movement of the laser according to the trajectory of the conductive pattern, and projects the laser onto the molded three-dimensional plastic device. Within a few seconds, The circuit pattern is activated. To put it simply (for the design and production of mobile phone antennas), on the molded plastic bracket, the metal antenna pattern is formed directly on the bracket by laser laser technology.
  • LDS antenna not only has stable antenna performance and good consistency, but also enhances the utilization rate of mobile terminal space, so that the body of the mobile terminal can achieve a certain degree of thinness.
  • the first antenna 10 and the second antenna 11 are metal frame antennas.
  • the metal frame on the left side of the mobile terminal is used as the second antenna 11
  • the metal frame above the mobile terminal is used as the first antenna 10
  • the metal frame antenna is coupled with the LDS antenna arranged on the plastic bracket of the mobile terminal to form a five-in-one antenna.
  • one antenna integrated GPS L1, GPS L5, Wi-Fi 2.4G, Wi-Fi 5G and LTE B32 function so as to achieve a single antenna to achieve dual GPS (GPS L1 and GPS L5).
  • an antenna structure of a mobile terminal provided by an embodiment of the present invention includes a first antenna 10, a second antenna 11, a third antenna 12, a fourth antenna 13, a fifth antenna 14, a sixth antenna 15, a matching Circuit 16 and feed point 17; a spacer 18 is provided between one end of the first antenna 10 and one end of the second antenna 11; one side of the spacer 18 is provided with the fourth antenna 13, the fourth antenna 13 Parallel to the second antenna 11 , one end of the fifth antenna 14 is disposed opposite to one end of the fourth antenna 13 , and the third antenna 12 is disposed on the side of the fifth antenna 14 .
  • the two antennas 11 are parallel, and the sixth antenna 15 is connected to the third antenna 12 , and the feed point 17 is provided on the side of the third antenna 12 ; the third antenna 12 is at least partially parallel to the fourth antenna 13
  • the fifth antenna 14, the sixth antenna 15 and the third antenna 12 are electrically connected and intersect at one point, and one end of the matching circuit 16 is connected to the fifth antenna 14, the sixth antenna 12 and the third antenna 12.
  • the antenna 15 is connected to the third antenna 12 , and the other end of the matching circuit 16 is connected to the feed point 17 .
  • a metal frame antenna is coupled with an LDS (Laser Direct Structuring) antenna disposed on the plastic bracket of the mobile terminal to form a five-in-one antenna (that is, one antenna integrates GPS L1, GPS L5, Wi-Fi 2.4G, Wi-Fi 5G and LTE B32 function), only one antenna is needed to realize the function of dual GPS (GPS L1 and GPS L5), compared with using at least two antennas to realize the function of dual GPS, it reduces the need for metal machine or injection molding machine in the film
  • the number of slots on the type of mobile terminal improves the structural strength of the mobile terminal and the visual effect of the appearance of the mobile terminal.
  • the five-in-one antenna is located in the upper left corner of the back of the mobile terminal, it is less affected by the head and hand. , therefore, the head-to-hand performance is also better.

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Abstract

本发明实施例提供一种移动终端天线结构。该天线结构包括第一天线至第六天线、匹配电路和馈点;第一天线和第二天线之间设置有一间隔区;间隔区的一侧设置有第四天线,第五与第四天线相对设置,第五天线的侧边设置有第三天线和馈点;第五、第六和第三天线电性连接,匹配电路与第五天线、第六天线、第三天线和馈点连接。

Description

移动终端天线结构
本申请要求于2020年12月02日提交中国专利局、申请号为202011403272.8、发明名称为“移动终端天线结构”的中国专利申请的优先权,其全部内容通过引用结合在本发明中。
技术领域
本发明涉及天线技术领域,特别涉及一种移动终端天线结构。
背景技术
在4G(4 th Generation,第4代通信技术)时代,GPS L1(Global Positioning System Level 1)是4G智能手机的标准配置,L1对应的频率是1575MHz。随着5G(5 th Generation,第5代通信技术)时代的到来,双GPS(Global Positioning System,全球定位系统)成了越来越多5G智能手机的标准配置,也就是说,在GPS L1的基础上,增加了GPS L5(Global Positioning System Level 5),L5对应的频率是1176MHz。5G智能手机在定位的时候,两个GPS接收器同时工作,大大地增加了定位精度。对5G智能手机的天线来说,为了能够实现双GPS的功能,现有的一种设计方案是一根天线集成GPS L1和Wi-Fi(无线上网)功能,另外一根天线集成GPS L5和Wi-Fi功能;现有的另一种设计方案是一根天线集成GPS L1和Wi-Fi功能,另外一根天线只做GPS L5功能。现有的天线设计方案,固然可以实现双GPS的功能,但至少需要2根天线,需要在金属机或者膜内注塑机开两个槽,手机的结构强度会减弱,如果是金属机的话也会影响金属机的外观面。
因此,现有技术存在缺陷,需要改善。
技术解决方案
本发明实施例提供一种移动终端天线结构,通过一根天线集成GPS L1、GPS L5、Wi-Fi 2.4G、Wi-Fi 5G和LTE B32(Long Term Evolution,长期演进)的功能,能够提升移动终端的结构强度和移动终端的外观视觉效果,自由空间和头手性能较好。
第一方面,本发明实施例提供一种移动终端天线结构,所述天线结构包括第一天线、第二天线、第三天线、第四天线、第五天线、第六天线、匹配电路和馈点;
所述第一天线的一端和所述第二天线的一端之间设置有一间隔区;
所述间隔区的一侧设置有所述第四天线,所述第四天线与所述第二天线平行,所述第五天线的一端与所述第四天线的一端相对设置,所述第五天线的侧边设置有所述第三天线,所述第三天线与所述第二天线平行,所述第六天线与所述第三天线连接,所述第三天线的侧边设置有所述馈点;
所述第三天线至少部分与所述第四天线相对平行设置且至少部分与第一天线相对平行设置;
所述第五天线、第六天线和第三天线电性连接且相交于一点,所述匹配电路的一端与所述第五天线、第六天线和第三天线连接,所述匹配电路的另一端与所述馈点连接。
进一步的,在所述的移动终端天线结构中,所述第一天线为一弯曲的天线,所述弯曲的天线包括第一部分天线和第二部分天线,所述第二部分天线的一端与所述第二天线的一端之间设置有所述间隔区,所述第二部分天线的另一端与所述第一部分天线连接;
所述第六天线包括第三部分天线、第四部分天线和第五部分天线,所述第五部分天线与所述第四天线相对平行设置,所述第四部分天线与所述第二部分天线相对平行设置,所述第三部分天线与所述第一部分天线相对平行设置。
进一步的,在所述的移动终端天线结构中,所述第一部分天线的长度范围为13mm至17mm,所述第二部分金属边框天线的长度范围为10mm至14mm。
进一步的,在所述的移动终端天线结构中,所述第一部分天线与移动终端金属中框接地区的距离范围为7mm至9mm,所述第二天线与移动终端金属中框接地区的距离范围为5mm至7mm。
进一步的,在所述的移动终端天线结构中,所述槽的宽度为1mm。
进一步的,在所述的移动终端天线结构中,所述第四天线的长度范围为2.5mm至3.5mm,其与所述第二天线之间的距离范围为0.4mm至0.6mm。
进一步的,在所述的移动终端天线结构中,所述第五天线包括第六部分天线和第七部分天线,所述第六部分天线与所述第七部分天线垂直连接,所述第六部分天线的一端与所述第四天线的一端相对设置,所述第六部分天线与所述第二天线平行,所述第七部分天线与所述第一部分天线平行,所述第六部分天线与所述第二天线之间的距离范围为0.4mm至0.6mm,所述第七部分天线、第六天线和第三天线相交于一点。
进一步的,在所述的移动终端天线结构中,所述第二天线的长度范围为25mm至29mm。
进一步的,在所述的移动终端天线结构中,所述第五天线、第四天线、第六天线和第三天线为LDS天线。
进一步的,在所述的移动终端天线结构中,所述第一天线和第二天线为金属边框天线。
第二方面,本发明实施例提供一种移动终端天线结构,所述天线结构包括第一天线、第二天线、第三天线、第四天线、第五天线、第六天线、匹配电路和馈点;
所述第一天线的一端和所述第二天线的一端之间设置有一间隔区;
所述间隔区的一侧设置有所述第四天线,所述第四天线与所述第二天线平行,所述第五天线的一端与所述第四天线的一端相对设置,所述第五天线的侧边设置有所述第三天线,所述第三天线与所述第二天线平行,所述第六天线与所述第三天线连接,所述第三天线的侧边设置有所述馈点;
所述第三天线至少部分与所述第四天线相对平行设置且至少部分与第一天线相对平行设置;
所述第五天线、第六天线和第三天线电性连接且相交于一点,所述匹配电路的一端与所述第五天线、第六天线和第三天线连接,所述匹配电路的另一端与所述馈点连接。
所述第三天线的长度范围为5mm至7mm。
进一步的,在所述第一天线为一弯曲的天线,所述弯曲的天线包括第一部分天线和第二部分天线,所述第二部分天线的一端与所述第二天线的一端之间设置有所述间隔区,所述第二部分天线的另一端与所述第一部分天线连接;
所述第六天线包括第三部分天线、第四部分天线和第五部分天线,所述第五部分天线与所述第四天线相对平行设置,所述第四部分天线与所述第二部分天线相对平行设置,所述第三部分天线与所述第一部分天线相对平行设置。
进一步的,在所述第一部分天线的长度范围为13mm至17mm,所述第二部分天线的长度范围为10mm至14mm。
进一步的,在所述第一部分天线与移动终端金属中框接地区的距离范围为7mm至9mm,所述第二天线与移动终端金属中框接地区的距离范围为5mm至7mm。
进一步的,在所述槽的宽度为1mm。
进一步的,在所述第四天线的长度范围为2.5mm至3.5mm,其与所述第二天线之间的距离范围为0.4mm至0.6mm。
进一步的,在所述第五天线包括第六部分天线和第七部分天线,所述第六部分天线与所述第七部分天线垂直连接,所述第六部分天线的一端与所述第四天线的一端相对设置,所述第六部分天线与所述第二天线平行,所述第七部分天线与所述第一部分天线平行,所述第六部分天线与所述第二天线之间的距离范围为0.4mm至0.6mm,所述第七部分天线、第六天线和第三天线相交于一点。
进一步的,在所述第二天线的长度范围为25mm至29mm。
进一步的,在所述第五天线、第四天线、第六天线和第三天线为LDS天线。
进一步的,在所述第一天线和第二天线为金属边框天线。
本发明实施例提供的移动终端天线结构,包括第一天线、第二天线、第三天线、第四天线、第五天线、第六天线、匹配电路和馈点;所述第一天线的一端和所述第二天线的一端之间设置有一间隔区;所述间隔区的一侧设置有所述第四天线,所述第四天线与所述第二天线平行,所述第五天线的一端与所述第四天线的一端相对设置,所述第五天线的侧边设置有所述第三天线,所述第三天线与所述第二天线平行,所述第六天线与所述第三天线连接,所述第三天线的侧边设置有所述馈点;所述第三天线至少部分与所述第四天线相对平行设置且至少部分与第一天线相对平行设置;所述第五天线、第六天线和第三天线电性连接且相交于一点,所述匹配电路的一端与所述第五天线、第六天线和第三天线连接,所述匹配电路的另一端与所述馈点连接。本申请实施例通过金属边框天线和设置在移动终端塑料支架上的LDS(Laser Direct Structuring,激光直接成型)天线耦合,形成一种五合一天线(即一根天线集成GPS L1、GPS L5、Wi-Fi 2.4G、Wi-Fi 5G和LTE B32的功能),只需要一根天线即可实现双GPS(GPS L1和GPS L5)的功能,相比于采用至少两根天线来实现双GPS的功能,减少了在金属机或者膜内注塑机类型的移动终端上开槽的数量,从而提升了移动终端的结构强度和移动终端的外观视觉效果,此外,由于该五合一天线位于移动终端背面的左上角区域,受头手的影响较小,因此,头手性能也较好。
附图说明
图1为本发明实施例提供的移动终端天线结构的结构示意图。
图2为本发明实施例提供的2.4GHz较浅谐振的回波损耗图。
图3为本发明实施例提供的2.4GHz和1.5GHz谐振的回波损耗图。
图4为本发明实施例提供的加上LTE B32天线和Wi-Fi 5G天线之后的回波损耗图。
图5为本发明实施例提供的并电感后的回波损耗图。
图6为本发明实施例提供的添加完整匹配电路后的回波损耗图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述。显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
在本发明的描述中,需要理解的是,术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。此外,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本发明的描述中,“多个”的含义是两个或两个以上,除非另有明确具体的限定。
在本发明的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接或可以相互通讯;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中,除非另有明确的规定和限定,第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触,也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且,第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方,或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方,或仅仅表示第一特征水平高度小于第二特征。
下文的公开提供了许多不同的实施方式或例子用来实现本发明的不同结构。为了简化本发明的公开,下文中对特定例子的部件和设置进行描述。当然,它们仅仅为示例,并且目的不在于限制本发明。此外,本发明可以在不同例子中重复参考数字和/或参考字母,这种重复是为了简化和清楚的目的,其本身不指示所讨论各种实施方式和/或设置之间的关系。此外,本发明提供了的各种特定的工艺和材料的例子,但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
本发明实施例提供一种移动终端天线结构。参考图1,移动终端天线结构包括第一天线、第二天线、第三天线、第四天线、第五天线、第六天线、匹配电路16和馈点17;
该第一天线10的一端和该第二天线11的一端之间设置有一间隔区18;
该间隔区18的一侧设置有该第四天线13,该第四天线13与该第二天线11平行,该第五天线14的一端与该第四天线13的一端相对设置,该第五天线14的侧边设置有该第三天线12,该第三天线12与该第二天线11平行,该第六天线15与该第三天线12连接,该第三天线12的侧边设置有该馈点17;
该第三天线12至少部分与该第四天线13相对平行设置且至少部分与该第一天线10相对平行设置;
该第五天线14、第六天线15和第三天线12电性连接且相交于一点,该匹配电路16的一端与该第五天线14、第六天线15和第三天线12连接,该匹配电路16的另一端与该馈点17连接。
例如,如图1所示,该槽18的右侧设置有该第四天线13,该第四天线13的下方设置有该第五天线14,该第五天线14的右侧设置有该第三天线12,该第三天线12的上方设置有该第六天线15,并且该第六天线15的一端与该第三天线12的一端连接,该第三天线12的右侧设置有该馈点17。
在不加LDS天线(第三天线12、第四天线13、第五天线14、第六天线15)的情况下,馈点17与第一天线10和第二天线11的耦合,会出一个2.4GHz的较浅谐振(如图2所示);在2.4GHz的较浅谐振的基础上,第五天线14与第二天线11耦合,会产生一个1.5GHz附近的新谐振,如图3所示,标号M1到M2的谐振为1.5GHz的谐振。第五天线14的天线长度为15mm,即第五天线14与第二天线11的耦合长度为15mm。耦合长度至关重要,需要调整耦合长度使得在1.5GHz附近产生一个谐振,如果耦合长度太长,则该谐振会消失;如果耦合长度太短,则该谐振的带宽有所减少;增加第六天线15可以使1.5GHz的谐振加深,第六天线15的作用是调节该1.5GHz的谐振,如果第六天线15太长,则该谐振会变浅,且谐振向低频偏,第三天线12的作用是调节Wi-Fi 5G的谐振,如果第三天线12太长,则该谐振会变浅,且谐振向低频偏,第三天线12的长度范围为5mm至7mm,如图4所述,从图中也可以看出Wi-Fi 2.4G和Wi-Fi 5G的谐振明显加深;在第一天线10、第二天线11、第三天线12、第四天线13、第五天线14和第六天线15的基础上,添加匹配电路16,即从天线端出发,先并2.4nH的电感,再串一个1.5pF的电容,电感的作用可以描述为,从史密斯圆图看,将GPS L1和GPS L5的谐振点从第三象限拉倒第一象限;从图5上看,从一个1.5GHz的谐振分离出分别位于1.3GHz和1.6GHz的两个谐振;电容的作用可以描述为:从史密斯圆图上看,将GPS L1和GPS L5的谐振点从第一象限拉到中心点附近,从图6上看,将1.3GHz和1.6GHz的两个谐振拉到GPS L1和GPS L5的频点附近。需要说明的是,由于LTE B32和GPS L1的频率点相近,因此可认为LTE B32和GPS L1的天线性能相近。因此,总的来说,该五合一天线的实现顺序是先出Wi-Fi 2.4GHz的谐振,再出1.5GHz的谐振,然后通过调节天线匹配电路的方法,将1.5GHz的谐振分成GPS L1和GPS L5两个谐振,最后微调LDS天线的长度来出Wi-Fi 5G的谐振。
在一些实施例中,该第一天线10为一弯曲的天线,该弯曲的天线包括第一部分天线101和第二部分天线102,该第二部分天线102的一端与该第二天线11的一端之间设置有该间隔区18,该第二部分天线102的另一端与该第一部分天线101连接;
该第六天线15包括第三部分天线151、第四部分天线152和第五部分天线153,该第五部分天线153与该第四天线13相对平行设置,该第四部分天线152与该第二部分天线102相对平行设置,该第三部分天线151与该第一部分天线101相对平行设置。
即该第一天线10由第一部分天线101和第二部分天线102组成,第一部分天线101位于移动终端的上边,第二部分天线102位于移动终端的侧边,第二天线11也位于移动终端的侧边,其中,第一天线10和第二天线11是金属边框天线。即只需要在第二部分天线102的一端与该第二天线11之间设置槽18,则由金属边框天线和设置在移动终端塑料支架上的LDS天线耦合所形成的五合一天线即可实现双GPS(GPS L1和GPS L5)的功能,相比于采用至少两根天线来实现双GPS的功能,减少了在移动终端上开槽的数量,提升了移动终端的结构强度和移动终端的外观视觉效果。
在一些实施例中,该第一部分天线101的长度范围为13mm至17mm,该第二部分天线102的长度范围为10mm至14mm。
其中,在不加LDS天线的情况下,馈点17与第一天线10和第二天线11的耦合,产生一个2.4GHz的较浅谐振,如图2所示,图中标号M3到M4的谐振为Wi-Fi 2.4GHz的谐振,第一天线10和第二天线11的长度会影响该较浅谐振的频点,也就是说,若第一天线10加长,则该较浅谐振向低频偏,若第一天线10减短,则该较浅谐振向高频偏,若第二天线11加长,则该较浅谐振向低频偏,若第二天线减短,则该较浅谐振向高频偏,因此,需要综合调整第一天线10和第二天线11至合适的长度,使得该较浅谐振正好落在2.4GHz附近,因此该第一部分天线101的长度范围为13mm至17mm,第二部分天线102的长度范围为10mm至14mm。其中,当将第一部分天线101的长度设置为15mm时,对应的第二部分天线102的长度设置为12mm,对应的第二天线11的长度设置为27mm,从而能使该较浅谐振正好落在2.4GHz附近。另外,馈点17与第二天线11的距离越远,则该较浅谐振向低频偏,馈点17与第二天线11的距离越近,则该较浅谐振向高频偏,因此,馈点17位置的设置也需要考虑。
在一些实施例中,该第一部分天线101与移动终端金属中框接地区19的距离范围为7mm至9mm,该第二天线11与移动终端金属中框接地区19的距离范围为5mm至7mm。
其中,设置这个距离范围主要是为了保证该五合一天线的性能,防止受到金属中框接地区19过多的干扰。其中,第一部分天线101与移动终端金属中框接地区19的距离为8mm,同时第二天线11与移动终端金属中框接地区19的距离6mm,为最佳距离,该距离可以使该五合一天线的性能最好。
在一些实施例中,该槽18的宽度为1mm。
因为在移动终端天线支架的侧边增加第五天线14后,会增加一个1.5GHz的新谐振,该1.5GHz的谐振的能量主要偏向于GPS L1的频点,GPS L5频点的能量较弱。为了增强GPS L5频点的能量,需要增强第一天线10与第二天线11的耦合,使得1.5GHz的谐振向低频偏50MHz左右,而增强金属边框天线10与第二天线11的耦合,可以通过调整第一天线10与第二天线11的距离,即调整槽18的宽度,将槽18的宽度设置为1mm,即可增强第一天线10与第二天线11的耦合,从而增强GPS L5频点的能量。此外,增强第一天线10与第二天线11的耦合还有其它的方法,例如,增大第一天线10与第二天线11之间的正对面积,即增大第二部分天线102的一端与第二天线11之间之间的正对面积,再比如,增加第四天线13,并且使第四天线13的面积能够覆盖第二部分天线102和第二天线11的一部分。
在一些实施例中,该第四天线13的长度范围为2.5mm至3.5mm,其与该第二天线11之间的距离范围为0.4mm至0.6mm。
其中,因为第二部分天线102的一端与第二天线11之间的槽18槽宽为1mm,因此将第四天线13的长度范围设置为2.5mm至3.5mm,以使第四天线13的面积能够覆盖第二部分天线102和第二天线11的一部分,从而增强第一天线10与第二天线11的耦合,进而增强GPS L5频点的能量。此外,该第四天线13的长度范围(2.5mm至3.5mm)和该第四天线13与该第二天线11之间的距离范围(0.4mm至0.6mm)能够保证该五合一天线性能最优,该第四天线13的最佳长度为3mm,该第四天线13与该第二天线11之间的最佳距离为0.5mm。
在一些实施例中,该第五天线14包括第六部分天线141和第七部分天线142,该第六部分天线141和第七部分天线142142垂直连接,该第六部分天线141的一端与该第四天线13的一端相对设置,该第六部分天线141与该第二天线11平行,该第七部分天线142与该第一部分天线101平行,该第六部分天线141与该第二天线11之间的距离范围为0.4mm至0.6mm,该第七部分天线142、第六天线15和第三天线12相交于一点。
其中,将第六部分天线141与第二天线11之间的距离范围设置为0.4mm至0.6mm,能够保证该五合一天线性能最优,第六部分天线141与第二天线11之间的最佳距离为0.5mm。
在一些实施例中,该第二天线11的长度范围为25mm至29mm。
其中,在不加LDS天线的情况下,馈点17与第一天线10和第二天线11的耦合,产生一个2.4GHz的较浅谐振,如图2所示,图中标号M3到M4的谐振为Wi-Fi 2.4GHz的谐振,第一天线10和第二天线11的长度会影响该较浅谐振的频点,也就是说,若第一天线10加长,则该较浅谐振向低频偏,若第一天线10减短,则该较浅谐振向高频偏,若第二天线11加长,则该较浅谐振向低频偏,若第二天线11减短,则该较浅谐振向高频偏,因此,需要综合调整第一天线10和第二天线11至合适的长度,使得该较浅谐振正好落在2.4GHz附近,因此将第二天线11的长度范围设置为25mm至29mm。其中,当第二天线11的长度设置为27mm时,对应的第一部分天线101的长度设置为15mm,对应的第二部分天线102的长度设置为12mm,从而能使该较浅谐振正好落在2.4GHz附近。
在一些实施例中,该第五天线14、第四天线13、第六天线15和第三天线12为LDS天线。
LDS天线技术即激光直接成型技术(Laser-Direct-structuring),利用计算机按照导电图形的轨迹控制激光的运动,将激光投照到模塑成型的三维塑料器件上,在几秒钟的时间内,活化出电路图案。简单的说(对于手机天线设计与生产),在成型的塑料支架上,利用激光镭射技术直接在支架上化镀形成金属天线图案。采用LDS天线,不仅天线性能稳定,一致性好,而且增强了移动终端空间的利用率,让移动终端的机身能够达到一定程度的纤薄。
在一些实施例中,该第一天线10和第二天线11为一金属边框天线。
即采用移动终端左侧的金属边框作为第二天线11,移动终端上方的金属边框作为第一天线10,通过金属边框天线和设置在移动终端塑料支架上的LDS天线耦合,形成一五合一天线(即一根天线集成GPS L1、GPS L5、Wi-Fi 2.4G、Wi-Fi 5G和LTE B32的功能),从而达到一根天线实现双GPS(GPS L1和GPS L5)的功能。
综上所述,本发明实施例提供的一种移动终端天线结构,包括第一天线10、第二天线11、第三天线12、第四天线13、第五天线14、第六天线15、匹配电路16和馈点17;该第一天线10的一端和该第二天线11的一端之间设置有一间隔区18;该间隔区18的一侧设置有该第四天线13,该第四天线13与该第二天线11平行,该第五天线14的一端与该第四天线13的一端相对设置,该第五天线14的侧边设置有该第三天线12,该第三天线12与该第二天线11平行,并且该第六天线15与该第三天线12连接,该第三天线12的侧边设置有该馈点17;该第三天线12至少部分与该第四天线13相对平行设置且至少部分与第一天线10相对平行设置;该第五天线14、第六天线15和第三天线12电性连接且相交于一点,该匹配电路16的一端与该第五天线14、第六天线15和第三天线12连接,该匹配电路16的另一端与该馈点17连接。本发明实施例通过金属边框天线和设置在移动终端塑料支架上的LDS(Laser Direct Structuring,激光直接成型)天线耦合,形成一五合一天线(即一根天线集成GPS L1、GPS L5、Wi-Fi 2.4G、Wi-Fi 5G和LTE B32的功能),只需要一根天线即可实现双GPS(GPS L1和GPS L5)的功能,相比于采用至少两根天线来实现双GPS的功能,减少了在金属机或者膜内注塑机类型的移动终端上开槽的数量,从而提升了移动终端的结构强度和移动终端的外观视觉效果,此外,由于该五合一天线位于移动终端背面的左上角区域,受头手的影响较小,因此,头手性能也较好。
在上述实施例中,对各个实施例的描述都各有侧重,某个实施例中没有详述的部分,可以参见其他实施例的相关描述。
以上对本发明实施例所提供的一种天线装置及移动终端进行了详细介绍,本文中应用了具体个例对本发明的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本发明的技术方案及其核心思想;本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例的技术方案的范围。

Claims (20)

  1. 一种移动终端天线结构,其中,所述天线结构包括第一天线、第二天线、第三天线、第四天线、第五天线、第六天线、匹配电路和馈点;
    所述第一天线的一端和所述第二天线的一端之间设置有一间隔区;
    所述间隔区的一侧设置有所述第四天线,所述第四天线与所述第二天线平行,所述第五天线的一端与所述第四天线的一端相对设置,所述第五天线的侧边设置有所述第三天线,所述第三天线与所述第二天线平行,所述第六天线与所述第三天线连接,所述第三天线的侧边设置有所述馈点;
    所述第三天线至少部分与所述第四天线相对平行设置且至少部分与第一天线相对平行设置;
    所述第五天线、第六天线和第三天线电性连接且相交于一点,所述匹配电路的一端与所述第五天线、第六天线和第三天线连接,所述匹配电路的另一端与所述馈点连接。
  2. 如权利要求1所述的移动终端天线结构,其中,所述第一天线为一弯曲的天线,所述弯曲的天线包括第一部分天线和第二部分天线,所述第二部分天线的一端与所述第二天线的一端之间设置有所述间隔区,所述第二部分天线的另一端与所述第一部分天线连接;
    所述第六天线包括第三部分天线、第四部分天线和第五部分天线,所述第五部分天线与所述第四天线相对平行设置,所述第四部分天线与所述第二部分天线相对平行设置,所述第三部分天线与所述第一部分天线相对平行设置。
  3. 如权利要求2所述的移动终端天线结构,其中,所述第一部分天线的长度范围为13mm至17mm,所述第二部分天线的长度范围为10mm至14mm。
  4. 如权利要求2所述的移动终端天线结构,其中,所述第一部分天线与移动终端金属中框接地区的距离范围为7mm至9mm,所述第二天线与移动终端金属中框接地区的距离范围为5mm至7mm。
  5. 如权利要求1所述的移动终端天线结构,其中,所述槽的宽度为1mm。
  6. 如权利要求1所述的移动终端天线结构,其中,所述第四天线的长度范围为2.5mm至3.5mm,其与所述第二天线之间的距离范围为0.4mm至0.6mm。
  7. 如权利要求1所述的移动终端天线结构,其中,所述第五天线包括第六部分天线和第七部分天线,所述第六部分天线与所述第七部分天线垂直连接,所述第六部分天线的一端与所述第四天线的一端相对设置,所述第六部分天线与所述第二天线平行,所述第七部分天线与所述第一部分天线平行,所述第六部分天线与所述第二天线之间的距离范围为0.4mm至0.6mm,所述第七部分天线、第六天线和第三天线相交于一点。
  8. 如权利要求1所述的移动终端天线结构,其中,所述第二天线的长度范围为25mm至29mm。
  9. 如权利要求1所述的移动终端天线结构,其中,所述第五天线、第四天线、第六天线和第三天线为LDS天线。
  10. 如权利要求1所述的移动终端天线结构,其中,所述第一天线和第二天线为金属边框天线。
  11. 一种移动终端天线结构,其中,所述天线结构包括第一天线、第二天线、第三天线、第四天线、第五天线、第六天线、匹配电路和馈点;
    所述第一天线的一端和所述第二天线的一端之间设置有一间隔区;
    所述间隔区的一侧设置有所述第四天线,所述第四天线与所述第二天线平行,所述第五天线的一端与所述第四天线的一端相对设置,所述第五天线的侧边设置有所述第三天线,所述第三天线与所述第二天线平行,所述第六天线与所述第三天线连接,所述第三天线的侧边设置有所述馈点;
    所述第三天线至少部分与所述第四天线相对平行设置且至少部分与第一天线相对平行设置;
    所述第五天线、第六天线和第三天线电性连接且相交于一点,所述匹配电路的一端与所述第五天线、第六天线和第三天线连接,所述匹配电路的另一端与所述馈点连接;
    所述第三天线的长度范围为5mm至7mm。
  12. 如权利要求11所述的移动终端天线结构,其特征在于,所述第一天线为一弯曲的天线,所述弯曲的天线包括第一部分天线和第二部分天线,所述第二部分天线的一端与所述第二天线的一端之间设置有所述间隔区,所述第二部分天线的另一端与所述第一部分天线连接;
    所述第六天线包括第三部分天线、第四部分天线和第五部分天线,所述第五部分天线与所述第四天线相对平行设置,所述第四部分天线与所述第二部分天线相对平行设置,所述第三部分天线与所述第一部分天线相对平行设置。
  13. 如权利要求11所述的移动终端天线结构,其中,所述第一部分天线的长度范围为13mm至17mm,所述第二部分天线的长度范围为10mm至14mm。
  14. 如权利要求11所述的移动终端天线结构,其中,所述第一部分天线与移动终端金属中框接地区的距离范围为7mm至9mm,所述第二天线与移动终端金属中框接地区的距离范围为5mm至7mm。
  15. 如权利要求11所述的移动终端天线结构,其中,所述槽的宽度为1mm。
  16. 如权利要求11所述的移动终端天线结构,其中,所述第四天线的长度范围为2.5mm至3.5mm,其与所述第二天线之间的距离范围为0.4mm至0.6mm。
  17. 如权利要求11所述的移动终端天线结构,其中,所述第五天线包括第六部分天线和第七部分天线,所述第六部分天线与所述第七部分天线垂直连接,所述第六部分天线的一端与所述第四天线的一端相对设置,所述第六部分天线与所述第二天线平行,所述第七部分天线与所述第一部分天线平行,所述第六部分天线与所述第二天线之间的距离范围为0.4mm至0.6mm,所述第七部分天线、第六天线和第三天线相交于一点。
  18. 如权利要求11所述的移动终端天线结构,其中,所述第二天线的长度范围为25mm至29mm。
  19. 如权利要求11所述的移动终端天线结构,其中,所述第五天线、第四天线、第六天线和第三天线为LDS天线。
  20. 如权利要求11所述的移动终端天线结构,其中,所述第一天线和第二天线为金属边框天线。
PCT/CN2020/136715 2020-12-02 2020-12-16 移动终端天线结构 WO2022116273A1 (zh)

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