WO2022002139A1 - 电子设备 - Google Patents

电子设备 Download PDF

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Publication number
WO2022002139A1
WO2022002139A1 PCT/CN2021/103588 CN2021103588W WO2022002139A1 WO 2022002139 A1 WO2022002139 A1 WO 2022002139A1 CN 2021103588 W CN2021103588 W CN 2021103588W WO 2022002139 A1 WO2022002139 A1 WO 2022002139A1
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WO
WIPO (PCT)
Prior art keywords
antenna
patch antenna
feeding
dielectric resonant
dielectric
Prior art date
Application number
PCT/CN2021/103588
Other languages
English (en)
French (fr)
Inventor
邾志民
马荣杰
王义金
简宪静
Original Assignee
维沃移动通信有限公司
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Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2022002139A1 publication Critical patent/WO2022002139A1/zh

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    • 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
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • 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
    • H01Q5/20Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
    • H01Q5/28Arrangements for establishing polarisation or beam width over two or more different wavebands
    • 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
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/0407Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • 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
    • H01Q9/0485Dielectric resonator antennas

Definitions

  • the present application belongs to the field of electronic technology, and specifically relates to an electronic device.
  • the current electronic device With the development of electronic technology, the current electronic device generally needs to be provided with an antenna, so that the electronic device has functions such as communication and network access.
  • a patch antenna can be installed on the current electronic device for radiation, but the current ordinary patch antenna can only generate one resonance signal. It can be seen that it is difficult for the current electronic device to use the patch antenna to generate two resonance frequencies. , that is, the dual-frequency characteristic of the antenna of the current electronic device is poor.
  • the purpose of the embodiments of the present application is to provide an electronic device that can solve the problem of poor dual-frequency characteristics of the antenna of the current electronic device.
  • An embodiment of the present application provides an electronic device, including: a metal frame, a dielectric resonant antenna, a patch antenna, and a feeding needle, the metal frame is provided with an accommodating slot, the patch antenna and the dielectric resonant antenna are arranged in the accommodating slot, the patch antenna and the dielectric resonant antenna are arranged in layers, and the patch antenna is arranged close to the bottom of the accommodating slot relative to the dielectric resonant antenna, and the The patch antenna is insulated from the accommodating groove, a first feeding through hole is opened in the accommodating groove, the first end of the feeding needle is penetrated in the first feeding through hole, and The first end of the feeding needle is electrically connected to the patch antenna or the dielectric resonant antenna;
  • the patch antenna radiates the first resonant signal, and the dielectric resonant antenna is excited to radiate the second resonant signal.
  • the patch antenna under the action of the signal input by the feeding needle, can radiate the first resonant signal, and at the same time the patch antenna can be regarded as the coupling excitation source of the dielectric resonant antenna, so that in the dielectric resonance
  • the second resonant signal is radiated in the antenna, so that the antenna of the electronic device in this embodiment obtains two resonant signals, so that the dual-frequency characteristic is better.
  • FIG. 1 is one of the structural exploded views of an electronic device provided by an embodiment of the present application.
  • FIG. 3 is the second structural exploded view of an electronic device provided by an embodiment of the present application.
  • FIG. 4 is a second schematic structural diagram of an electronic device provided by an embodiment of the present application.
  • FIG. 5 is a third schematic structural diagram of an electronic device provided by an embodiment of the present application.
  • FIG. 6 is a fourth schematic structural diagram of an electronic device provided by an embodiment of the present application.
  • FIG. 7 is a reflection coefficient diagram of a dielectric resonant antenna of an electronic device provided by an embodiment of the present application.
  • FIG. 8 is a directional diagram of a dielectric resonant antenna of an electronic device provided by an embodiment of the present application at 28 GHz;
  • FIG. 9 is a directional diagram of a dielectric resonant antenna of an electronic device provided in an embodiment of the present application at 39 GHz.
  • first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and distinguish between “first”, “second”, etc.
  • the objects are usually of one type, and the number of objects is not limited.
  • the first object may be one or more than one.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
  • FIG. 1 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.
  • the electronic device includes: a metal frame 10, a dielectric resonant antenna 20, a patch antenna 30, and a feeding needle 40,
  • the metal frame 10 is provided with an accommodating slot 11
  • the patch antenna 30 and the dielectric resonant antenna 20 are both arranged in the accommodating slot 11
  • the patch antenna 30 and the dielectric resonant antenna 20 are arranged in the accommodating slot 11
  • the patch antenna 30 is arranged in layers, and the patch antenna 30 is arranged close to the bottom of the accommodating slot 11 relative to the dielectric resonant antenna 20 , and the patch antenna 30 is insulated from the accommodating slot 11 .
  • a first feeding through hole 111 is opened in the slot 11 , the first end of the feeding needle 40 is penetrated in the first feeding through hole 111 , and the first end of the feeding needle 40 is connected to the first feeding through hole 111 .
  • the patch antenna 30 or the dielectric resonant antenna 20 is electrically connected;
  • the patch antenna 30 radiates the first resonance signal
  • the dielectric resonance antenna 20 radiates the second resonance signal
  • FIG. 1 may be an enlarged view of the structure in the area A shown in FIG. 2 .
  • the dielectric resonant antenna 20 may be made of a high dielectric constant material, and the dielectric constant of the above high dielectric constant material is usually greater than 10.
  • the patch antenna 30 can radiate the first resonance under the action of the signal (which may include signals of multiple frequency bands) input by the feeding needle 40 .
  • signal that is, the signal of some specific frequency bands in the signal input by the feeding needle 40
  • the patch antenna 30 can be regarded as the coupling of the dielectric resonant antenna 20 Therefore, the dielectric resonant antenna 20 can radiate the second resonant signal (that is, the signal in a certain frequency band other than the first resonant signal among the signals input by the feeding needle 40 ). That is, the electronic device in this embodiment can obtain dual-frequency characteristics.
  • the frequency bands of the first resonant signal and the second resonant signal are different, for example: when the first resonant signal is a low-frequency signal, the second resonant signal is a high-frequency signal; when the first resonant signal is a high-frequency signal , the second resonance signal is a low frequency signal.
  • the size of the patch antenna 30 can be proportional to the wavelength of the first resonant signal and inversely proportional to the frequency; similarly, the dielectric resonant antenna 20 can be proportional to the wavelength of the second resonant signal and inversely proportional to the frequency.
  • the patch antenna 30 and the dielectric resonant antenna 20 can both be rectangular antennas, then the side length of the patch antenna 30 can be half the wavelength of the first resonant signal, and similarly the side length of the dielectric resonant antenna 20 can also be the second half the wavelength of the resonant signal.
  • the first resonant signal radiated by the patch antenna 30 is a high-frequency signal
  • the radiated signal in the dielectric resonant antenna 20 The second resonant signal is a low-frequency signal; when the side length of the patch antenna 30 is large, and the side length of the dielectric resonant antenna 20 is small, the first resonant signal radiated in the patch antenna 30 is a low-frequency signal, and the medium
  • the second resonance signal radiated in the resonance antenna 20 is a high frequency signal.
  • the high-frequency signal and the low-frequency signal in the embodiments of the present application are only relative.
  • the first resonance signal when the frequency of the first resonance signal is lower than that of the second resonance signal, the first resonance signal may be referred to as the low-frequency signal.
  • the second resonance signal can be called a high frequency signal; when the frequency of the first resonance signal is higher than that of the second resonance signal, the first resonance signal can be called a high frequency signal, and the second resonance signal can be called a high frequency signal low frequency signal.
  • the setting position of the first end of the feeding needle 40 is not limited here.
  • the first end of the feeding needle 40 is in contact with the patch antenna 30, for example: The first end of the feeding needle 40 is in contact with the surface of the patch antenna 30 facing the groove bottom of the accommodating groove 11 . In this way, the patch antenna 30 can be fed, and the patch antenna 30 can be fed The effect is better.
  • the patch antenna 30 is provided with a first feeding hole, the first end of the feeding needle 40 is penetrated in the first feeding hole, and the feeding needle 40 has a gap with the inner wall of the first feeding hole, or the feeding needle 40 is in contact with the inner wall of the first feeding hole.
  • the feeding needle 40 feeds the patch antenna 30
  • the electrical mode is coupling feeding; when the feeding needle 40 is in contact with the inner wall of the first feeding hole, in this way, the feeding needle 40 and the patch antenna 30 can directly perform electrical transmission.
  • all the outer walls of the feeding needle 40 can abut against the inner wall of the first feeding hole, that is, the cross-sectional area of the feeding needle 40 is equal to the cross-sectional area of the first feeding hole; Part of the outer wall of the feeding needle 40 is in contact with the inner wall of the first feeding hole, that is, the cross-sectional area of the feeding needle 40 is smaller than that of the first feeding hole at this time.
  • the first feeding hole may be a second feeding through hole penetrating through two opposite surfaces of the patch antenna 30 (the two surfaces may be the surface facing the dielectric resonant antenna 20 and the surface facing away from the dielectric resonant antenna 20 respectively).
  • the first feeding hole may also be a blind hole opened on the patch antenna 30 , and the specific type is not limited herein.
  • the first end of the feeding needle 40 is penetrated in the first feeding hole. It should be noted that the specific position of the first end of the feeding needle 40 is not limited here. For example, the first end of the feeding needle 40 is not limited here. One end may be located in the middle of the first feeding hole. Of course, the first end of the feeding needle 40 may also be close to the position where the first feeding hole is connected to the dielectric resonant antenna 20 . In this way, the feeding effect to the patch antenna 30 can be better
  • the patch antenna 30 is provided with a second feed through hole, the first end of the feed pin 40 is penetrated in the second feed through hole, and In contact with the dielectric resonant antenna 20 , the feeding needle 40 has a gap with the inner wall of the second feeding through hole.
  • the feeding method of the feeding needle 40 to the patch antenna 30 is as follows: The first end of the feeding needle 40 is in contact with the dielectric resonant antenna 20 at the same time, so that the feeding needle 40 can feed the patch antenna 30 and the dielectric resonant antenna 20 at the same time, which enhances the resistance to the patch antenna. 30 and the feeding effect of the dielectric resonant antenna 20.
  • the side walls and the bottom of the accommodating slot 11 can be used as reflectors of the above-mentioned patch antenna 30 and the dielectric resonant antenna 20, thereby enhancing the gain of the above-mentioned patch antenna 30 and the dielectric resonant antenna 20, that is, enhancing the above-mentioned patch
  • the dielectric resonant antenna 20 is provided with a second feeding hole
  • the second feeding hole can be communicated with the second feeding through hole and be disposed opposite to each other, and the first end of the feeding needle 40 It can pass through the second feeding through hole and be located in the second feeding hole, so that the feeding of the dielectric resonant antenna 20 and the patch antenna 30 can be realized at the same time.
  • the second feeding hole may be a through hole or a blind hole, and the specific type is not limited here.
  • the first end of the feeding needle 40 is disposed toward the patch antenna 30 and is spaced from the patch antenna 30 , so that the coupled feeding of the patch antenna 30 can be realized.
  • the patch antenna 30 is set close to the groove bottom of the accommodating groove 11 relative to the dielectric resonant antenna 20, which can be understood as: the distance between the patch antenna 30 and the groove bottom of the accommodating groove 11 is smaller than that between the dielectric resonant antenna 20 and the accommodating groove 11.
  • the distance between the groove bottoms of the grooves 11, for example, the patch antenna 30 is located between the dielectric resonant antenna 20 and the groove bottom of the accommodating groove 11, and the patch antenna 30 can be spaced from the groove bottom of the accommodating groove 11. , the patch antenna 30 can be in contact with the dielectric resonant antenna 20 .
  • the patch antenna 30 is only disposed close to the groove bottom of the accommodating groove 11 relative to the dielectric resonant antenna 20 , but the patch antenna 30 is not in contact with the groove bottom of the accommodating groove 11 , that is, the patch antenna 30 is not in contact with the groove bottom of the accommodating groove 11 .
  • the groove bottoms of the accommodating grooves 11 may be arranged at intervals.
  • an insulating substrate 60 may be provided between the patch antenna 30 and the groove bottom of the accommodating groove 11 , and the insulating substrates 60 may be respectively connected with each other.
  • the patch antenna 30 is in contact with the groove bottom of the accommodating slot 11; as another optional embodiment, the feeding needle 40 can be in contact with the patch antenna 30, so as to have a supporting effect on the patch antenna 30. In this way, Under the support of the feeding needle 40 , the purpose of spaced arrangement between the patch antenna 30 and the groove bottom of the accommodating groove 11 can also be achieved.
  • a probe medium may be provided between the feeding needle 40 and the side wall of the first feeding through hole 111 , so that it can be fixed.
  • the effect of the feeding needle 40 can also be achieved by insulating the feeding needle 40 from the accommodating groove 11 .
  • the thickness of the dielectric resonant antenna 20 can be adjusted according to the impedance matching situation.
  • the electronic device may also be provided with a signal source, and the signal source may be electrically connected to the feeding needle 40 , and the signal source may input a signal to the feeding needle 40 .
  • the patch antenna 30 can radiate the first resonant signal
  • the dielectric resonant antenna 20 can radiate the second resonant signal.
  • the dielectric resonant antenna 20 provided in this embodiment is a millimeter wave antenna.
  • the electronic device may also be provided with other communication antennas, and the first part of the metal frame 10 can be used as a radiator for other communication antennas. It should be noted that the accommodating slot 11 can also be opened on the first part of the metal frame 10, In this way, in the embodiment of the present application, the patch antenna 30 and the dielectric resonant antenna 20 may share the first part of the metal frame 10 with other communication antennas.
  • the accommodating groove 11 can also be opened in the second part of the metal frame 10, and the second part is a different part from the first part.
  • the dielectric resonant antenna 20 of this embodiment can be provided separately from other communication antennas.
  • the above-mentioned other communication antennas may be cellular (cellular) antennas or non-cellular (no-cellular) antennas.
  • the metal frame 10 can be a closed rectangular frame, of course, it can also be an unclosed rectangular frame.
  • the metal frame 10 includes four side frames, but the two adjacent side frames can be filled with insulating medium. The purpose of insulating the two adjacent side frames can be achieved, and the purpose of connecting the two adjacent side frames can also be achieved.
  • the radiator of the above communication antenna may be composed of a certain side frame and a part of the other two side frames adjacent to the side frame. For example, referring to Fig. 2, area B in Fig. 2 is the area where the radiator of the communication antenna is located.
  • the electronic device may further include a grounded floor 50 , and the floor 50 may be connected to each side frame of the metal frame 10 , or only connected to a part of the side frame of the metal frame 10 , so that the metal frame 10 can pass through the floor 50 to achieve the purpose of grounding.
  • the above-mentioned floor 50 can also be referred to as a main upper and a frame, and can be used for fixing components such as printed circuit boards.
  • an insulating substrate 60 is further disposed in the accommodating groove 11 , and the patch antenna 30 is disposed on the insulating substrate 60 .
  • the material of the insulating substrate 60 is not limited herein, for example, the insulating substrate 60 may be made of a rubber material or a plastic material.
  • the insulating substrate 60 may be in contact with the groove bottom of the accommodating groove 11 , and of course, there may also be a gap between the insulating substrate 60 and the groove bottom of the accommodating groove 11 .
  • the insulating substrate 60 can achieve the purpose of insulating the patch antenna 30 from the groove bottom or sidewall of the accommodating groove 11 .
  • Insulating substrates 60 with different thicknesses can be selected as required, so that insulating substrates 60 with different thicknesses can be selected, so that the height of the patch antenna 30 can be adjusted.
  • the arrangement of the patch antenna 30 on the insulating substrate 60 is not limited here.
  • the first surface of the insulating substrate 60 is in contact with the groove bottom of the accommodating groove 11
  • the patch antenna 30 is in contact with the second surface of the insulating substrate 60 . surface contact.
  • first surface and the second surface may be two opposite surfaces.
  • the first surface of the insulating substrate 60 and the groove bottom of the accommodating groove 11 can be in contact.
  • the first surface and the groove bottom of the accommodating groove 11 can be fixedly connected by a first adhesive layer.
  • the patch antenna 30 may be in contact with the second surface of the insulating substrate 60 .
  • the patch antenna 30 and the second surface may also be fixedly connected by a second adhesive layer.
  • the insulating substrate 60 can support the patch antenna 30, and at the same time, the patch antenna 30 and the insulating substrate can be simplified. 60 assembly process, reduce processing cost.
  • the third surface of the insulating substrate 60 is in contact with the groove bottom of the accommodating groove 11 , and the surface of the insulating substrate 60 facing away from the third surface A first groove is formed, and the patch antenna 30 is at least partially embedded in the first groove.
  • the third surface and the above-mentioned first surface may refer to the same surface, that is, the surface of the insulating substrate 60 disposed toward the groove bottom of the accommodating groove 11 .
  • the area of the cross section of the first groove may be equal to the area of the cross section of the patch antenna 30 , so that the patch antenna 30 can be embedded in the first groove more securely.
  • the area of the cross section of the first groove can also be slightly smaller than the area of the cross section of the patch antenna 30. In this way, when the patch antenna 30 is embedded in the first groove, that is, the patch antenna 30 is connected to the first groove. There is an interference fit between the side walls of the groove, so that the fixing effect of the first groove on the patch antenna 30 can be further enhanced.
  • the patch antenna 30 is at least partially embedded in the first groove, that is, the entire patch antenna 30 may be embedded in the first groove, and of course, a part of the patch antenna 30 may also be embedded in the first groove
  • the patch antenna 30 can be divided into a first antenna part and a second antenna part, the first antenna part is embedded in the first groove, and the second antenna part is The subsection is exposed outside the first groove.
  • the patch antenna 30 is at least partially embedded in the first groove, the fixing effect of the patch antenna 30 and the connection strength between the patch antenna 30 and the insulating substrate 60 are enhanced.
  • the volume of the space occupied by the patch antenna 30 and the insulating substrate 60 (mainly the volume occupied in the thickness direction) is also reduced, thereby reducing the volume of the space occupied by the patch antenna 30 and the insulating substrate 60.
  • the volume of the entire electronic device is also reduced.
  • the electronic device further includes a first insulating medium 70 , and the first insulating medium 70 , the dielectric resonant antenna 20 and the patch antenna 30 are stacked in sequence and the dielectric constant of the first insulating dielectric body 70 is smaller than the dielectric constant of the dielectric resonant antenna 20 .
  • the first insulating medium 70 is used to close the accommodating groove 11 , that is, the edges of the first insulating medium 70 may abut against the side walls of the accommodating groove 11 respectively, while the first insulating medium 70
  • the insulating medium 70 may be located at the opening of the accommodating groove 11 , so that the first insulating medium 70 and the surface of the metal frame 10 may be on the same level, that is, the integrity of the metal frame 10 is ensured.
  • the edge of the first insulating dielectric body 70 may have a gap with the side wall of the accommodating groove 11, and the first insulating dielectric body 70 is in contact with the dielectric resonant antenna 20. In this way, it is possible to The protection of the dielectric resonant antenna 20 is realized.
  • the dielectric resonant antenna 20 can be protected.
  • the first insulating medium body 70 when used to close the accommodating groove 11, the first insulating medium body 70 can also ensure the integrity of the surface of the metal frame 10, and can also play a waterproof and dustproof effect.
  • the dielectric constant of the first insulating medium 70 is smaller than that of the dielectric resonant antenna 20 , the first insulating medium 70 has less influence on the radiation performance of the dielectric resonant antenna 20 .
  • a second groove (not shown in the figure) is formed on the surface of the first insulating dielectric body 70 facing the dielectric resonant antenna 20, and the dielectric resonant antenna 20 is at least partially embedded in the first dielectric resonant antenna 20. two grooves.
  • the cross-sectional area of the first insulating dielectric body 70 may be greater than that of the dielectric resonant antenna 20, and the cross-sectional area of the second groove may be greater than or equal to the cross-sectional area of the dielectric resonant antenna 20. In this way, the dielectric resonant antenna 20 may be at least partially embedded in the second groove.
  • the area of the second groove may also be smaller than the cross-sectional area of the dielectric resonant antenna 20, and the surface of the dielectric resonant antenna 20 facing the first insulating dielectric body 70 may be provided with a raised portion.
  • the cross-sectional area of the raised portion may be The area may be smaller than or equal to the cross-sectional area of the second groove, and the protruding portion may be embedded in the second groove.
  • the connection strength between the dielectric resonant antenna 20 and the first insulating dielectric body 70 can be enhanced, and at the same time, the The volume of the space occupied by the dielectric resonant antenna 20 and the first insulating dielectric body 70 reduces the volume of the entire electronic device.
  • the number of the first feeding through holes 111 is N, and the first feeding through holes 111 correspond to the number of the feeding needles 40 one-to-one, and the N is an integer greater than 1 .
  • N is an integer greater than 1
  • the number of the first feed through holes 111 is at least two, and each of the first feed through holes 111 has a feed pin 40 pierced through it, which can be understood as the first feed through hole 111 .
  • the feeding through holes 111 and the feeding needles 40 There is a one-to-one correspondence between the feeding through holes 111 and the feeding needles 40 , and at least two feeding needles 40 are arranged in the accommodating slot 11 . The radiation performance of the patch antenna 30 and up to the resonant antenna is enhanced.
  • At least two feed pins 40 may be electrically connected to the same signal source; as another optional implementation manner, each feed pin 40 may correspond to One signal source is connected, that is, when the number of feed pins 40 is N, the number of signal sources is also N, and the feed pins 40 and the signal sources are in one-to-one correspondence.
  • the feeding needles 40 in the two first feeding through holes 111 can form polarization, that is, the two feeding needles 40 in the two first feeding through holes 111 can be a group, and
  • the two feeding needles 40 in each group constitute polarization, which increases the wireless connection capability of the antenna, reduces the probability of communication disconnection, and increases the communication effect and user experience.
  • the two feed pins 40 in a group form a pair of differential feed ports, the two feed pins 40 in the group are polarized.
  • one feeding needle 40 can also form polarization alone, and at this time, two feeding needles 40 can form two polarizations, and the above two polarizations can also be called dual polarizations. In this way, the wireless connection capability of the antenna can also be increased, the probability of communication disconnection can be reduced, and the communication effect and user experience can be improved.
  • the number of the first feeding through holes 111 is at least two, and the number of the feeding needles 40 and the number of the first feeding through holes 111 are in a one-to-one correspondence, which can enhance the reliability of the patch antenna 30 . Feeding effect to enhance the radiation performance of the patch antenna 30 and up to the resonant antenna.
  • the N feed pins 40 constitute at least one pair of differential feed ports.
  • N feed pins 40 may constitute at least a pair of differential feed ports, and the input signals on the two feed pins 40 that constitute a pair of differential feed ports have the same amplitude and a phase difference of 180 degrees. .
  • the number of differential feed ports is not limited here.
  • the number of feed pins 40 is 4, then two of the four feed pins 40 can form a pair of differential feed pins.
  • the other two feed pins 40 do not constitute differential feed ports; of course, the above-mentioned four feed pins 40 may also respectively form two pairs of differential feed ports.
  • a rectangle can be obtained by sequentially connecting the positions of the above-mentioned four feed pins 40, and the above-mentioned four feed pins 40 can be respectively located at the position of a right angle of the rectangle, and the two feed pins constituting a pair of differential feed ports
  • the electric needles 40 may be located at two right-angle positions connected by the diagonal lines of the rectangle, respectively.
  • every two of the first feed through holes 111 in the N first feed through holes 111 form a through hole group, and each through hole group includes two
  • the feed pin 40 provided in the first feed through hole 111 constitutes a differential feed port.
  • the feed pins 40 provided in the two first feed through holes 111 included in each through hole group constitute differential feed ports, that is, the above through hole group includes two first feed through holes 111, and each The first feed through holes 111 are each provided with a feed pin 40, which can be understood as: each through hole group includes two feed pins 40, and the above two feed pins 40 constitute a differential feed port, That is, the amplitudes of the input signals of the two feeding needles 40 are equal, and the phases differ by 180 degrees.
  • the above-mentioned two feeding pins 40 can both be connected to the same signal source, so as to better ensure that the amplitudes of the input signals of the above-mentioned feeding pins 40 are equal.
  • the signal source may be a millimeter wave signal source.
  • first feed through hole 111 may include two through hole groups, and the two first feed through holes 111 in one through hole group may be located in the same horizontal direction, and the two through hole groups in the through hole group may be located in the same horizontal direction.
  • the connection between the two first feed through holes 111 may be a first connection (for example, the D connection in FIG. 3 ).
  • the dielectric resonant antenna When two of the two first feed through holes 111 on the D connection When the feeding needle 40 is working, the dielectric resonant antenna can be in a horizontally polarized state; and the two first feeding through holes 111 in the other through hole group can be located in the same vertical direction, and the two first feeding through holes 111 in the through hole group
  • the connection between the two first feed through holes 111 can be a second connection (for example, the C connection in FIG. 3 ).
  • the dielectric resonant antenna When the two first feed through holes 111 on the C connection When the root feeding needle 40 is working, the dielectric resonant antenna can be in a vertically polarized state.
  • the first connection line and the second connection line intersect.
  • the intersecting position of the first connecting line and the second connecting line may be located at the middle position of the groove bottom of the accommodating groove 11 .
  • MIMO Multiple Input Multiple Output
  • the multiple input multiple output (Multiple Input Multiple Output, MIMO) function can be formed through the feeding needles 40 provided in the above two through-hole groups, and at the same time, dual polarization can also be formed, which increases the wireless connection of the dielectric resonant antenna. It reduces the probability of communication disconnection and improves the communication effect and user experience.
  • the maximum radiation direction of the dielectric resonant antenna of the present application is directed to the positive z direction, which is suitable for forming an array for beamforming.
  • the two feed pins 40 included in each through-hole group constitute a differential feed port, in this way, the problem that the pattern of the dielectric resonant antenna changes with frequency can be solved, and the maximum radiation direction of the antenna can be guaranteed. Consistent, while improving the polarization isolation of dual polarization, thereby enhancing the radiation performance of the antenna.
  • a second insulating medium 80 is further disposed in the accommodating groove 11 , and the second insulating medium 80 surrounds the dielectric resonant antenna 20 and the patch Antenna 30 is provided.
  • the dielectric constant of the second insulating dielectric body 80 may be smaller than the dielectric constant of the dielectric resonant antenna 20 .
  • the dielectric resonant antenna 20 can be made of a material with a higher dielectric constant (for example, a material with a dielectric constant greater than 10 can usually be selected), and a material with a lower dielectric constant can be selected to make the second insulating dielectric body 80 (for example: usually a material with a dielectric constant can be selected) Choose a material with a dielectric constant less than 10). In this way, it is easier for the dielectric resonant antenna 20 to be in the dielectric resonant mode, thereby better increasing the bandwidth of the antenna.
  • Figure 7 is the reflection coefficient diagram of the dielectric resonant antenna 20 at this time. After calculation and in conjunction with Figure 7, it can be seen that the bandwidth of the antenna can reach 26.4GHz-30.7 at -10dB.
  • FIG. 8 is a directional diagram of the dielectric resonant antenna 20 at 28 GHz
  • FIG. 9 is a directional diagram of the dielectric resonant antenna 20 at 39 GHz.
  • the second insulating medium body 80 is disposed around the dielectric resonant antenna 20 and the patch antenna 30 , so that the fixing effect of the dielectric resonant antenna 20 and the patch antenna 30 can be enhanced.
  • the metal frame 10 is provided with M accommodating slots 11 , and each accommodating slot 11 is provided with the dielectric resonant antenna 20 and all In the patch antenna 40, M of the accommodating slots 11 are distributed in an array, and M is an integer greater than 1.
  • the distance between any two adjacent accommodating slots 11 may be determined according to the isolation between the dielectric resonant antennas in the above-mentioned two adjacent accommodating slots 11 and the performance of the scanning angle of the array.
  • each accommodating groove 11 is provided with a dielectric resonant antenna 20 and a patch antenna 40, thus increasing the number of antennas, Thereby, the radiation performance of the electronic device can be further enhanced. Meanwhile, the M accommodating grooves 11 are distributed in an array, which can make the distribution of the accommodating grooves 11 more neat.
  • WMAN wireless intercity network
  • WWAN wireless wide area network
  • WLAN wireless local area network
  • WPAN wireless personal network
  • MIMO multiple input multiple output
  • RFID radio frequency identification
  • NFC near field communication
  • WPC wireless charging
  • FM FM and other functional electronic devices
  • WMAN wireless intercity network
  • WWAN wireless wide area network
  • WLAN wireless local area network
  • WPAN wireless personal network
  • MIMO multiple input multiple output
  • RFID radio frequency identification
  • NFC near field communication
  • WPC wireless charging
  • FM FM and other functional electronic devices
  • wearable electronics devices such as hearing aids or heart rate regulators, etc.

Landscapes

  • Waveguide Aerials (AREA)

Abstract

本申请公开了一种电子设备,包括:金属边框、介质谐振天线、贴片天线和馈电针,所述金属边框上开设有容置槽,所述贴片天线和所述介质谐振天线均设置于所述容置槽内,所述贴片天线和所述介质谐振天线层叠设置,且所述贴片天线相对于所述介质谐振天线靠近所述容置槽的槽底设置,所述贴片天线与所述容置槽绝缘设置,所述容置槽内开设有第一馈电通孔,所述馈电针的第一端穿设于所述第一馈电通孔中,且所述馈电针的第一端与所述贴片天线或者介质谐振天线电连接;在所述馈电针输入的信号的作用下,所述贴片天线辐射第一谐振信号,所述介质谐振天线辐射第二谐振信号。

Description

电子设备
相关申请的交叉引用
本申请主张在2020年7月3日在中国提交的中国专利申请号No.202010637382.4的优先权,其全部内容通过引用包含于此。
技术领域
本申请属于电子技术领域,具体涉及一种电子设备。
背景技术
随着电子技术的发展,当前电子设备中一般都需要设置有天线,从而使得电子设备具有通信以及访问网络等功能。在实际的使用中,当前电子设备上可以设置有贴片天线去进行辐射,但是当前普通贴片天线通常只能产生一个谐振信号,可见,当前电子设备较难利用贴片天线产生两个谐振频率,即当前电子设备的天线的双频特性较差。
发明内容
本申请实施例的目的是提供一种电子设备,能够解决当前电子设备的天线的双频特性较差的问题。
为了解决上述技术问题,本申请是这样实现的:
本申请实施例提供了一种电子设备,包括:金属边框、介质谐振天线、贴片天线和馈电针,所述金属边框上开设有容置槽,所述贴片天线和所述介质谐振天线均设置于所述容置槽内,所述贴片天线和所述介质谐振天线层叠设置,且所述贴片天线相对于所述介质谐振天线靠近所述容置槽的槽底设置,所述贴片天线与所述容置槽绝缘设置,所述容置槽内开设有第一馈电通孔,所述馈电针的第一端穿设于所述第一馈电通孔中,且所述馈电针的第一端与所述贴片天线或者介质谐振天线电连接;
其中,在所述馈电针输入的信号的作用下,所述贴片天线辐射第一谐振信号,并激励所述介质谐振天线辐射第二谐振信号。
在本申请实施例中,在馈电针输入的信号的作用下,贴片天线中可以辐射第一谐振信号,而同时贴片天线可以被视作为介质谐振天线的耦合激励源,从而在介质谐振天线中辐射第二谐振信号,从而使得本实施例中的电子设备的天线获得两个谐振信号,从而使得双频特性较好。
附图说明
图1是本申请实施例提供的一种电子设备的结构爆炸图之一;
图2是本申请实施例提供的一种电子设备的结构示意图之一;
图3是本申请实施例提供的一种电子设备的结构爆炸图之二;
图4是本申请实施例提供的一种电子设备的结构示意图之二;
图5是本申请实施例提供的一种电子设备的结构示意图之三;
图6是本申请实施例提供的一种电子设备的结构示意图之四;
图7是本申请实施例提供的一种电子设备的介质谐振天线的反射系数图;
图8是本申请实施例提供的一种电子设备的介质谐振天线在28GHz时的方向图;
图9是本申请实施例提供的一种电子设备的介质谐振天线在39GHz时的方向图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通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,都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施,且“第一”、“第二”等所区分的对象通常为一类,并不限定对象的个数,例如第一对象可以是一个,也可以是多个。此外,说明书以及权利要求中“和/或”表示所连接对象的至少其中之一,字符“/”,一般表示前 后关联对象是一种“或”的关系。
下面结合附图,通过具体的实施例及其应用场景对本申请实施例提供的电子设备进行详细地说明。
参见图1,图1是本申请实施例提供的一种电子设备的结构示意图,如图1所示,电子设备包括:金属边框10、介质谐振天线20、贴片天线30和馈电针40,所述金属边框10上开设有容置槽11,所述贴片天线30和所述介质谐振天线20均设置于所述容置槽11内,所述贴片天线30和所述介质谐振天线20层叠设置,且所述贴片天线30相对于所述介质谐振天线20靠近所述容置槽11的槽底设置,所述贴片天线30与所述容置槽11绝缘设置,所述容置槽11内开设有第一馈电通孔111,所述馈电针40的第一端穿设于所述第一馈电通孔111中,且所述馈电针40的第一端与所述贴片天线30或者介质谐振天线20电连接;
其中,在所述馈电针40输入的信号的作用下,所述贴片天线30辐射第一谐振信号,所述介质谐振天线20辐射第二谐振信号。
需要说明的是,图1可以是图2所示的A区域中的结构放大图。
其中,介质谐振天线20可以选择高介电常数材料制成,上述高介电常数材料的介电常数通常大于10。
其中,本申请实施例的工作原理可以参见以下说明:
由于馈电针40的第一端与贴片天线30电连接,因此,在馈电针40输入的信号(可以包括多个频段的信号)的作用下,贴片天线30上可以辐射第一谐振信号(即馈电针40输入的信号中某些特定频段的信号),同时,在除第一谐振信号之外的某些特定频段处,贴片天线30可以被视作为介质谐振天线20的耦合激励源,因此,介质谐振天线20中可以辐射第二谐振信号(即馈电针40输入的信号中除第一谐振信号之外的某些特定频段的信号)。即本实施例中的电子设备可以获得双频特性。
需要说明的是,上述第一谐振信号和第二谐振信号的频段不同,例如:当第一谐振信号为低频段信号,则第二谐振信号为高频段信号;当第一谐振信号为高频段信号,则第二谐振信号为低频段信号。
而第一谐振信号为低频段信号还是高频段信号,第二谐振信号为高频段 信号还是低频段信号,具体可以根据贴片天线30以及介质谐振天线20的尺寸来确定。需要说明的是,贴片天线30的尺寸可以与第一谐振信号的波长呈正比,频率呈反比;同理,介质谐振天线20可以与第二谐振信号的波长呈正比,频率呈反比。
例如:贴片天线30和介质谐振天线20可以均为矩形天线,则贴片天线30的边长可以为第一谐振信号的波长的一半,同理介质谐振天线20的边长也可以为第二谐振信号的波长的一半。
另外,当贴片天线30的边长较小,而介质谐振天线20的边长较大时,此时贴片天线30中辐射的第一谐振信号为高频段信号,介质谐振天线20中辐射的第二谐振信号为低频段信号;当贴片天线30的边长较大,而介质谐振天线20的边长较小时,此时贴片天线30中辐射的第一谐振信号为低频段信号,介质谐振天线20中辐射的第二谐振信号为高频段信号。
需要说明的是,本申请实施例中的高频段信号和低频段信号只是相对的,例如:当第一谐振信号比第二谐振信号的频率低时,则第一谐振信号可以被称作为低频段信号,第二谐振信号可以被称作为高频段信号;当第一谐振信号比第二谐振信号的频率高时,则第一谐振信号可以被称作为高频段信号,第二谐振信号可以被称作为低频段信号。
其中,馈电针40的第一端的设置位置在此不做限定,作为一种可选的实施方式,所述馈电针40的第一端与所述贴片天线30抵接,例如:馈电针40的第一端与贴片天线30朝向容置槽11的槽底的表面抵接,这样,即可以实现对贴片天线30的馈电,且使得对贴片天线30的馈电效果较好。
作为另一种可选的实施方式,所述贴片天线30上开设有第一馈电孔,所述馈电针40的第一端穿设于所述第一馈电孔内,馈电针40与第一馈电孔的内壁具有间隙,或者,馈电针40与第一馈电孔的内壁抵接。
其中,当馈电针40与第一馈电孔的内壁具有间隙,即馈电针40与第一馈电孔的内壁之间不抵接,这样,馈电针40向贴片天线30的馈电方式为耦合馈电;当馈电针40与第一馈电孔的内壁抵接,这样,馈电针40与贴片天线30可以直接进行电传输。
需要说明的是,馈电针40的全部外壁可以与第一馈电孔的内壁抵接,即 此时馈电针40的横截面面积等于第一馈电孔的横截面面积;当然,也可以是馈电针40的部分外壁与第一馈电孔的内壁抵接,即此时馈电针40的横截面面积小于第一馈电孔的横截面面积。
另外,第一馈电孔可以为贯穿贴片天线30相对的两表面(该两表面可以分别为朝向介质谐振天线20的表面和背离介质谐振天线20的表面)的第二馈电通孔,当然,第一馈电孔也可以为贴片天线30上开设的盲孔,具体类型在此不做限定。
其中,馈电针40的第一端穿设于第一馈电孔内,需要说明的是,馈电针40的第一端的具体位置在此不做限定,例如:馈电针40的第一端可以位于第一馈电孔的中间位置。当然,馈电针40的第一端也可以靠近第一馈电孔与介质谐振天线20连接位置。这样,可以使得对贴片天线30的馈电效果更好
作为另一种可选的实施方式,所述贴片天线30上开设有第二馈电通孔,所述馈电针40的第一端穿设于所述第二馈电通孔内,且与所述介质谐振天线20抵接,所述馈电针40与所述第二馈电通孔的内壁具有间隙。
其中,由于馈电针40穿设在第二馈电通孔内,且馈电针40与第二馈电通孔的内壁具有间隙,即馈电针40向贴片天线30的馈电方式为耦合馈电,而馈电针40的第一端同时与介质谐振天线20抵接,这样,馈电针40可以同时向贴片天线30和介质谐振天线20进行馈电,增强了对贴片天线30和介质谐振天线20的馈电效果。
另外,容置槽11的侧壁和槽底可以作为上述贴片天线30和介质谐振天线20的反射器,从而增强了上述贴片天线30和介质谐振天线20的增益,即增强了上述贴片天线30和介质谐振天线20的辐射性能;同时由于容置槽11开设于金属边框10上,可以减少电子设备其他部件对上述贴片天线30和介质谐振天线20的辐射性能造成的影响,从而进一步增强了上述贴片天线30和介质谐振天线20的辐射性能。
作为另一种可选的实施方式,介质谐振天线20上开设有第二馈电孔,第二馈电孔可以与第二馈电通孔连通且相对设置,而馈电针40的第一端可以穿过第二馈电通孔并位于第二馈电孔内,这样,可以同时实现对介质谐振天线20和贴片天线30的馈电。需要说明的是,第二馈电孔可以为通孔也可以为 盲孔,具体类型在此不做限定。
作为另一种可选的实施方式,馈电针40的第一端朝向贴片天线30设置,且与贴片天线30间隔设置,这样,可以实现对贴片天线30的耦合馈电。
其中,贴片天线30相对于介质谐振天线20靠近容置槽11的槽底设置,可以理解为:贴片天线30与容置槽11的槽底之间的距离小于介质谐振天线20与容置槽11的槽底之间的距离,例如:贴片天线30位于介质谐振天线20与容置槽11的槽底之间的位置,而贴片天线30可以与容置槽11的槽底间隔设置,贴片天线30可以与介质谐振天线20抵接。
需要说明的是,贴片天线30只是相对于介质谐振天线20靠近容置槽11的槽底设置,但是贴片天线30并未与容置槽11的槽底抵接,即贴片天线30与容置槽11的槽底之间可以间隔设置,作为一种可选的实施方式,贴片天线30与容置槽11的槽底之间可以设置有绝缘基板60,而绝缘基板60可以分别与贴片天线30与容置槽11的槽底抵接;作为另一种可选的实施方式,馈电针40可以与贴片天线30抵接,从而对贴片天线30具有支撑作用,这样,在馈电针40的支撑作用下,同样可以实现贴片天线30与容置槽11的槽底之间间隔设置的目的。
另外,馈电针40穿设于第一馈电通孔111内时,馈电针40与第一馈电通孔111的侧壁之间可以设置有探针介质,这样,从而可以起到固定馈电针40的效果,同时还可以实现馈电针40与容置槽11的绝缘设置。
其中,介质谐振天线20的厚度可以根据阻抗匹配情况进行调节。
需要说明的是,电子设备中还可以设置有信号源,该信号源可以与馈电针40电连接,则信号源可以向馈电针40输入信号,这样,在馈电针40输入的信号的作用下,贴片天线30中可以辐射第一谐振信号,介质谐振天线20中可以辐射第二谐振信号。当上述信号源为毫米波信号源时,本实施例提供的介质谐振天线20即为毫米波天线。
其中,电子设备上还可以设置有其他通信天线,而金属边框10的第一部分可以作为其他通信天线的辐射体,需要说明的是,容置槽11也可以开设于金属边框10的第一部分上,这样,本申请实施例中贴片天线30和介质谐振天线20可以与其他通信天线共用金属边框10的第一部分。
当然,容置槽11也可以开设于金属边框10的第二部分,第二部分与第一部分为不同的部分。这样,本实施例的介质谐振天线20可以与其他通信天线分开设置。
需要说明的是,上述其他通信天线可以为蜂窝(cellular)天线或者非蜂窝(no-cellular)天线。而金属边框10可以为一个封闭的矩形框,当然,也可以为不封闭的矩形框,例如:金属边框10包括四条侧边框,但是相邻的两条侧边框之间可以通过绝缘介质进行填充,既可以达到将相邻的两条侧边框绝缘设置的目的,也可以达到连接相邻两条侧边框的目的。而上述通信天线的辐射体可以由某一条侧边框,以及另外两条与该侧边框相邻的两条侧边框的一部分构成。例如:参见图2,图2中B区域即通信天线的辐射体所在的区域。
另外,参见图2,电子设备还可以包括接地的地板50,地板50可以与金属边框10的各个侧边框连接,或者只与金属边框10的部分侧边框连接,这样,金属边框10通过地板50可以实现接地的目的。当然,上述地板50也可以被称作为主上、框体,可以用于固定印制电路板等部件。
可选地,所述容置槽11内还设置有绝缘基板60,所述贴片天线30设置于所述绝缘基板60上。
其中,绝缘基板60的材料在此不做限定,例如:绝缘基板60可以采用橡胶材料或者塑料材料制成。
其中,绝缘基板60可以与容置槽11的槽底抵接,当然,绝缘基板60与容置槽11的槽底之间也可以具有间隙。
本申请实施例中,由于贴片天线30设置于绝缘基板60上,这样,通过绝缘基板60可以实现贴片天线30与容置槽11的槽底或者侧壁绝缘设置的目的,同时,还可以根据需要选择不同厚度的绝缘基板60,这样,可以选择不同厚度的绝缘基板60,从而可以调节贴片天线30的高度。
另外,贴片天线30在绝缘基板60上的设置方式在此也不做限定。
作为一种可选的实施方式,参见图4,所述绝缘基板60的第一表面与所述容置槽11的槽底抵接,所述贴片天线30与所述绝缘基板60的第二表面抵接。
其中,第一表面和第二表面可以为相对的两个表面。
其中,绝缘基板60的第一表面与容置槽11的槽底之间可以抵接,当然,上述第一表面与容置槽11的槽底之间可以通过第一粘接层固定连接。同理,贴片天线30与绝缘基板60的第二表面之间可以抵接,当然,贴片天线30与上述第二表面之间也可以通过第二粘接层固定连接。
本申请实施方式中,由于贴片天线30与绝缘基板60的第二表面抵接,这样,绝缘基板60可以对贴片天线30起到支撑作用,同时,还可以简化贴片天线30与绝缘基板60的装配工艺,降低加工成本。
作为另一种可选的实施方式,参见图5,所述绝缘基板60的第三表面与所述容置槽11的槽底抵接,所述绝缘基板60背离所述第三表面的表面上开设有第一凹槽,所述贴片天线30至少部分嵌设于所述第一凹槽内。
其中,第三表面与上述第一表面可以指的均是同一个表面,即指的是绝缘基板60朝向容置槽11的槽底设置的表面。
其中,第一凹槽的横截面的面积可以等于贴片天线30的横截面的面积,这样,可以更加固定的将贴片天线30嵌设于第一凹槽内。当然,第一凹槽的横截面的面积也可以略小于贴片天线30的横截面的面积,这样,当贴片天线30嵌设于第一凹槽内,即贴片天线30与第一凹槽的侧壁之间为过盈配合,从而,可以进一步的增强第一凹槽对贴片天线30的固定效果。
其中,贴片天线30至少部分嵌设于第一凹槽内,即贴片天线30可以全部嵌设于第一凹槽内,当然,也可以贴片天线30的一部分嵌设于第一凹槽内,例如:沿着贴片天线30的厚度方向可以将贴片天线30区分为第一天线分部和第二天线分部,第一天线分部嵌设于第一凹槽内,第二天线分部显露于第一凹槽外。
本申请实施例中,由于贴片天线30至少部分嵌设于第一凹槽内,从而增强了对贴片天线30的固定效果和贴片天线30与绝缘基板60之间的连接强度,同时,与贴片天线30和绝缘基板60层叠设置的方式相比,还减小了贴片天线30和绝缘基板60所占据的空间的体积(主要是厚度方向上所占据的体积),从而减小了整个电子设备的体积。
可选地,参见图1以及图3-5,所述电子设备还包括第一绝缘介质体70, 所述第一绝缘介质体70、所述介质谐振天线20和所述贴片天线30依次层叠设置,且所述第一绝缘介质体70的介电常数小于所述介质谐振天线20的介电常数。
其中,作为一种可选的实施方式,第一绝缘介质体70用于封闭容置槽11,即第一绝缘介质体70的边缘可以分别与容置槽11的侧壁抵接,而第一绝缘介质体70可以位于容置槽11的开口处,这样,第一绝缘介质体70可以与金属边框10的表面位于同一水平面上,即保证了金属边框10的完整度。
当然,作为另一种可选的实施方式,第一绝缘介质体70的边缘可以与容置槽11的侧壁具有间隙,而第一绝缘介质体70与介质谐振天线20抵接,这样,可以实现对介质谐振天线20的保护。
本申请实施例中,通过设置第一绝缘介质体70,从而可以对介质谐振天线20形成保护。另外,当第一绝缘介质体70用于封闭容置槽11时,第一绝缘介质体70同时也可以保证金属边框10的表面的完整性,另外还可以起到防水防尘效果。同时由于第一绝缘介质体70的介电常数小于介质谐振天线20的介电常数,使得第一绝缘介质体70对于介质谐振天线20的辐射性能影响较小。
可选地,所述第一绝缘介质体70朝向所述介质谐振天线20的表面上开设有第二凹槽(图中未示出),所述介质谐振天线20至少部分嵌设于所述第二凹槽内。
其中,第一绝缘介质体70的横截面面积可以大于介质谐振天线20的横截面面积,而第二凹槽的横截面面积可以大于或等于介质谐振天线20的横截面面积,这样,介质谐振天线20可以至少部分嵌设于第二凹槽内。
当然,第二凹槽的面积也可以小于介质谐振天线20的横截面面积,而介质谐振天线20上朝向第一绝缘介质体70的表面上可以设置有凸起部,上述凸起部的横截面面积可以小于或等于第二凹槽的横截面面积,上述凸起部可以嵌设于上述第二凹槽内。
本申请实施例中,由于介质谐振天线20至少部分嵌设于第二凹槽内,这样,可以增强介质谐振天线20和第一绝缘介质体70之间的连接强度,同时,还可以减小了介质谐振天线20和第一绝缘介质体70所占据的空间的体积, 从而减小了整个电子设备的体积。
可选地,所述第一馈电通孔111的数量为N个,且所述第一馈电通孔111与所述馈电针40的数量一一对应,所述N为大于1的整数。
其中,由于N为大于1的整数,则第一馈电通孔111的数量为至少两个,且每一个第一馈电通孔111内均穿设有馈电针40,即可以理解为第一馈电通孔111与馈电针40的数量为一一对应的,则容置槽11内设置有至少两根馈电针40,这样,可以增强对贴片天线30的馈电效果,以增强贴片天线30以及截至谐振天线的辐射性能。
需要说明的是,作为一种可选的实施方式,至少两根馈电针40可以与同一个信号源电连接;作为另一种可选的实施方式,每一根馈电针40均可以对应连接一个信号源,即当馈电针40的数量为N个,则信号源的数量也为N个,且馈电针40和信号源为一一对应。
当N为2时,两个第一馈电通孔111内的馈电针40可以构成极化,即两个第一馈电通孔111内的两根馈电针40可以为一组,且每组内的两根馈电针40构成极化,增加天线的无线连接能力,减少通信断线的机率,增加通信效果和用户体验。例如:当一组内的两根馈电针40构成一对差分馈电端口时,则该组内的两根馈电针40极化。
需要说明的是,一根馈电针40也可以单独构成极化,则此时两根馈电针40可以构成两个极化,上述两个极化也可以被称作为双极化。这样,同样可以增加天线的无线连接能力,减少通信断线的机率,增加通信效果和用户体验。
本申请实施例中,第一馈电通孔111的数量为至少两个,且馈电针40的数量与第一馈电通孔111的数量为一一对应,可以增强对贴片天线30的馈电效果,以增强贴片天线30以及截至谐振天线的辐射性能。
可选地,N个所述馈电针40构成至少一对差分馈电端口。
需要说明的是,上述N个馈电针40可以构成至少一对差分馈电端口,而构成一对差分馈电端口的两个馈电针40上的输入信号的幅度相等,且相位相差180度。
需要说明的是,差分馈电端口的数量在此不做限定,例如:馈电针40的 数量为4个,则4个馈电针40中有2个馈电针40可以构成1对差分馈电端口,而另外的2个馈电针40则不构成差分馈电端口;当然,上述4个馈电针40也可以分别构成2对差分馈电端口。
另外,依次连接上述4个馈电针40的位置可以得到一个矩形,而上述4个馈电针40可以分别位于矩形的1个直角所在的位置,而构成1对差分馈电端口的2个馈电针40可以分别位于矩形的对角线所连接的2个直角位置。
作为一种可选的实施方式,N个所述第一馈电通孔111中每两个所述第一馈电通孔111组成一个通孔组,每个所述通孔组包括的两个第一馈电通孔111内设置的馈电针40构成差分馈电端口。
其中,每个通孔组包括的两个第一馈电通孔111内设置的馈电针40构成差分馈电端口,即上述通孔组包括两个第一馈电通孔111,且每个第一馈电通孔111内均穿设有一根馈电针40,可以理解为:每个通孔组内包括两根馈电针40,而上述两根馈电针40构成差分馈电端口,即上述两根馈电针40的输入信号的幅度相等,且相位相差180度。
而上述两根馈电针40可以均连接至同一个信号源上,从而可以更好的保证上述馈电针40的输入信号的幅度相等。另外,该信号源可以为毫米波信号源。
需要说明的是,第一馈电通孔111可以包括两个通孔组,且一个通孔组中的两个第一馈电通孔111可以位于同一水平方向上,且该通孔组中的两个第一馈电通孔111之间的连线可以为第一连线(例如:图3中D连线),当D连线上的两个第一馈电通孔111内的两根馈电针40工作时,此时介质谐振天线可以处于水平极化状态;而另一个通孔组中的两个第一馈电通孔111可以位于同一竖直方向上,且该通孔组中的两个第一馈电通孔111之间的连线可以为第二连线(例如:图3中C连线),当C连线上的两个第一馈电通孔111内的两根馈电针40工作时,此时介质谐振天线可以处于垂直极化状态。第一连线和第二连线相交。可选地,第一连线和第二连线的相交位置可以位于容置槽11的槽底的中间位置。这样,通过上述两个通孔组内的设置的馈电针40可以形成多输入多输出(Multiple Input Multiple Output,MIMO)功能,同时,还可以构成双极化,增加了介质谐振天线的无线连接能力,减少了通信断线 的机率,提升了通信效果和用户体验。
需要说明的是,由于采用对称的差分馈电端口,本申请介质谐振天线的最大辐射方向均指向正z方向,适合组成阵列(array)进行波束赋形(beamforming)。
本申请实施例中,由于每个通孔组中包括的两根馈电针40构成差分馈电端口,这样,可以解决介质谐振天线方向图随着频率变化这一问题,保证天线的最大辐射方向一致,同时提高双极化的极化隔离度,进而增强了天线的辐射性能。
可选地,图1以及图3-5,所述容置槽11内还设置有第二绝缘介质体80,且所述第二绝缘介质体80环绕所述介质谐振天线20和所述贴片天线30设置。
其中,第二绝缘介质体80的介电常数可以小于介质谐振天线20的介电常数。可以选择介电常数较高的材料制造介质谐振天线20(例如:通常可以选择介电常数大于10的材料),而选择介电常数较低的材料制造第二绝缘介质体80(例如:通常可以选择介电常数小于10的材料)。这样,可以使得介质谐振天线20更容易处于介质谐振模式,从而更好的增加天线的带宽。
当信号源为毫米波信号源时,参见图7,图7为此时介质谐振天线20的反射系数图,经计算以及结合图7可知:以-10dB计算,天线的带宽可以达到26.4GHz-30.7GHz,以及达到36.2GHz-40.1GHz,基本覆盖第三代合作伙伴计划(3rd Generation Partnership Project,3GPP)已经定义的n257,n260,n261等频段;以-6dB计算,天线的带宽可以达到24.33GHz-41.76GHz,基本覆盖3GPP已经定义的n257,n258,n260,n261频段,即可以覆盖全球主流第五代移动通信技术(5th generation mobile networks,5G)毫米波频段,从而提升了用户的移动漫游体验。另外,还可以参见图8和图9,图8为介质谐振天线20在28GHz时的方向图,而图9为介质谐振天线20在39GHz时的方向图。
本申请实施例中,第二绝缘介质体80环绕介质谐振天线20和贴片天线30设置,这样,可以增强对介质谐振天线20和贴片天线30的固定效果。
需要说明的是,可选地,参见图6,所述金属边框10上开设有M个所述容置槽11,每一个所述容置槽11内均设置有所述介质谐振天线20和所述贴 片天线40,M个所述容置槽11阵列分布,所述M为大于1的整数。
其中,任意相邻两个容置槽11之间的距离,可以根据上述相邻两个容置槽11内的介质谐振天线之间的隔离度以及阵列的扫描角度的性能来确定。
本申请实施例中,由于金属边框10开设有M个所述容置槽11,且每一个容置槽11内均设置有介质谐振天线20和贴片天线40,这样,增加了天线的数量,从而可以进一步增强电子设备的辐射性能。同时,M个容置槽11阵列分布,可以使得容置槽11的分布更加整洁。
需要说明的是,本申请实施例中给出的各个实施例可以应用于具有无线城际网路(WMAN)、无线广域网路(WWAN)、无线区域网路(WLAN)、无线个人网路(WPAN)、多输入多输出(MIMO)、射频识别(RFID),甚至是近场通信(NFC)、无线充电(WPC),或FM等功能的电子设备上;当然,还可以应用于可佩戴的电子器件(如助听器或心率调整器等)上。
上面结合附图对本申请的实施例进行了描述,但是本申请并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本申请的启示下,在不脱离本申请宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本申请的保护之内。

Claims (10)

  1. 一种电子设备,包括:金属边框、介质谐振天线、贴片天线和馈电针,所述金属边框上开设有容置槽,所述贴片天线和所述介质谐振天线均设置于所述容置槽内,所述贴片天线和所述介质谐振天线层叠设置,且所述贴片天线相对于所述介质谐振天线靠近所述容置槽的槽底设置,所述贴片天线与所述容置槽绝缘设置,所述容置槽内开设有第一馈电通孔,所述馈电针的第一端穿设于所述第一馈电通孔中,且所述馈电针的第一端与所述贴片天线或者介质谐振天线电连接;
    其中,在所述馈电针输入的信号的作用下,所述贴片天线辐射第一谐振信号,所述介质谐振天线辐射第二谐振信号。
  2. 根据权利要求1所述的电子设备,其中,所述容置槽内还设置有绝缘基板,所述贴片天线设置于所述绝缘基板上。
  3. 根据权利要求2所述的电子设备,其中,所述绝缘基板的第一表面与所述容置槽的槽底抵接,所述贴片天线与所述绝缘基板的第二表面抵接。
  4. 根据权利要求2所述的电子设备,其中,所述绝缘基板的第三表面与所述容置槽的槽底抵接,所述绝缘基板背离所述第三表面的表面上开设有第一凹槽,所述贴片天线至少部分嵌设于所述第一凹槽内。
  5. 根据权利要求1所述的电子设备,还包括第一绝缘介质体,所述第一绝缘介质体、所述介质谐振天线和所述贴片天线依次层叠设置,且所述第一绝缘介质体的介电常数小于所述介质谐振天线的介电常数。
  6. 根据权利要求5所述的电子设备,其中,所述第一绝缘介质体朝向所述介质谐振天线的表面上开设有第二凹槽,所述介质谐振天线至少部分嵌设于所述第二凹槽内。
  7. 根据权利要求1所述的电子设备,其中,所述贴片天线上开设有第二馈电通孔,所述馈电针的第一端穿设于所述第二馈电通孔内,且与所述介质谐振天线抵接,所述馈电针与所述第二馈电通孔的内壁具有间隙。
  8. 根据权利要求1所述的电子设备,其中,所述馈电针的第一端与所述贴片天线抵接。
  9. 根据权利要求1所述的电子设备,其中,所述第一馈电通孔的数量为N个,且所述第一馈电通孔与所述馈电针的数量一一对应,所述N为大于1的整数。
  10. 根据权利要求9所述的电子设备,其中,N个所述馈电针构成至少一对差分馈电端口。
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