CN110911815B - Antenna unit and electronic equipment - Google Patents
Antenna unit and electronic equipment Download PDFInfo
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- CN110911815B CN110911815B CN201911198715.1A CN201911198715A CN110911815B CN 110911815 B CN110911815 B CN 110911815B CN 201911198715 A CN201911198715 A CN 201911198715A CN 110911815 B CN110911815 B CN 110911815B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
- H01Q1/523—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between antennas of an array
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
- H01Q5/35—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using two or more simultaneously fed points
Abstract
The invention provides an antenna unit and electronic equipment, and relates to the technical field of communication. The antenna unit includes: the metal shell comprises a groove; the radiation arm structure is arranged in the groove; the feed part is connected with one end of the radiation arm structure, penetrates through the groove bottom of the groove and is connected with a signal source, and the feed part is insulated from the groove bottom; and one end of the grounding column is connected with the other end of the radiation arm structure, the other end of the grounding column is connected with the tank bottom, and the tank bottom is grounded. According to the scheme provided by the invention, the isolation between adjacent antenna units can be improved, the bandwidth of the antenna units can be greatly increased, and the same antenna unit can be subjected to dual-port feeding, so that an MIMO function can be formed to improve the transmission rate of data, dual polarization can be formed, the wireless connection capacity of the antenna units is improved, the probability of communication disconnection is reduced, and the communication effect and user experience are improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an antenna unit and an electronic device.
Background
Currently, the millimeter wave Antenna In Package (AiP) module in the prior art has the following disadvantages:
AiP when the module is installed in an electronic device such as a mobile phone, the influence of the non-metallic materials such as the housing/battery cover of the electronic device such as a mobile phone on the millimeter wave antenna is large, which often causes the resonant frequency of the multi-frequency AiP module to shift, narrow the bandwidth, even disappear the bandwidth of some frequency bands, etc.;
the bandwidth of the prior art is narrow, the current dual-frequency scheme can only cover n260(37.0-40.0GHz) and n261(27.5-28.35GHz) frequency bands, and cannot meet the design of multiple frequencies or wide frequency, so that the mobile roaming experience of users is influenced;
in addition, the existing technical scheme is very easily influenced by peripheral metal devices, such as metal frames, metal back covers, loudspeakers, speakers and other metal devices, so that the performance of the antenna is reduced sharply. For a terminal with a metal appearance, a certain window needs to be set for the millimeter wave antenna, or the metal ratio of the electronic device needs to be reduced.
Disclosure of Invention
The embodiment of the invention provides an antenna unit and electronic equipment, which are used for solving the problem that the antenna in the prior art cannot meet the requirement of multiple frequencies or wide frequency.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides an antenna unit, including:
the metal shell comprises a groove;
the radiation arm structure is arranged in the groove;
the feed part is connected with one end of the radiation arm structure, penetrates through the groove bottom of the groove and is connected with a signal source, and the feed part is insulated from the groove bottom;
one end of the grounding column is connected with the other end of the radiation arm structure, the other end of the grounding column is connected with the tank bottom, and the tank bottom is grounded.
In a second aspect, an embodiment of the present invention further provides an electronic device, including the antenna unit as described above;
wherein the number of the antenna units is at least one.
In this way, in the embodiment of the present invention, the metal housing includes a groove, a radiation arm structure disposed in the groove, and a feeding portion connected to one end of the radiation arm structure, the feeding portion passes through the groove bottom of the groove and is connected to a signal source, and the feeding portion is insulated from the groove bottom; the one end of earthing pole with the other end of radiation arm structure is connected, the other end of earthing pole with the tank bottom is connected, the tank bottom ground connection not only can improve the isolation between the adjacent antenna element, can also make antenna element's bandwidth increase by a wide margin to can also use dual-port feed to same antenna element, one can form Multiple-Input Multiple-Output (MIMO) function, in order to promote the transmission rate of data, two can constitute the double polarization, increase antenna element's wireless connection ability, reduce the probability of communication broken string, promote communication effect and user experience.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 shows a cross-sectional view of an antenna unit according to an embodiment of the invention;
fig. 2 is a schematic structural diagram of an antenna unit according to an embodiment of the present invention;
fig. 3 shows a top view of an antenna unit according to an embodiment of the invention;
FIG. 4 illustrates one of the top views of a millimeter wave array antenna of an embodiment of the present invention;
fig. 5 is a second top view of the millimeter wave array antenna according to the embodiment of the invention;
FIG. 6 is a schematic structural diagram of an electronic device according to an embodiment of the invention;
FIG. 7 is a graph showing the reflection coefficients of an antenna unit according to an embodiment of the present invention;
FIG. 8 shows a 26GHz frequency radiation pattern for an embodiment of the invention;
FIG. 9 shows a radiation pattern with a frequency of 39GHz according to an embodiment of the invention;
FIG. 10 is a schematic diagram illustrating an embodiment of an electronic device and a hotspot unconnected;
FIG. 11 is a schematic diagram of a connection between an electronic device and a hotspot according to an embodiment of the invention;
description of reference numerals:
11-a first insulating medium, 12-a second insulating medium, 13-a third insulating medium, 2-a bottom plate, 3-a radiating arm structure, 31-a first radiating arm unit, 32-a second radiating arm unit, 33-a third radiating arm unit, 34-a fourth radiating arm unit, 35-a first radiating arm, 36-a second radiating arm, 37-a third radiating arm, 4-a grounding column, 41-a first grounding column, 42-a second grounding column, 5-a feeding part, 51-a first feeding part, 52-a second feeding part, 6-a metal shell, 61-a first frame, 62-a second frame, 63-a third frame, 64-a fourth frame, 7-a non-millimeter wave antenna, and 8-a floor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
At present, all-metal, high-screen-ratio, ultra-thin body and multi-antenna communication become the mainstream and future trend of electronic devices, and with the development of the fifth generation mobile communication 5G, the design of the millimeter wave antenna is gradually introduced to some small electronic devices, such as mobile phones, tablets and even notebook computers, so that the effective radiation space divided by each antenna is often reduced under the condition of maintaining the overall competitive size of the system, and further, the performance of the antenna is reduced, and the wireless experience of users is degraded. Or the overall size of the system is increased to accommodate a plurality of separate antennas, thereby reducing the overall competitiveness of the product. The millimeter wave antenna is often in the form of an independent antenna module, and the millimeter wave antenna and an existing antenna, such as a cellular (cellular) antenna, and a non-cellular (non-cellular) antenna, are often separately disposed, so that the overall size of the system is easily increased, and the overall competitiveness of the product is reduced.
In addition, the currently planned 5G millimeter wave band includes n257(26.5-29.5GHz), n258(24.25-27.5GHz), and n261(27.5-28.35GHz) frequency bands mainly at 28GHz, and n260(37.0-40.0GHz) and provisional n259(40.5-43.5GHz) frequency bands mainly at 39 GHz. There is a roaming requirement in the frequency dimension in addition to the above-mentioned space dimension requirement for wireless performance. In order to meet the requirements of broadband, dual-frequency and even multi-frequency, for the patch, a slot is often required on a radiating sheet of the patch or a laminated structure is often adopted, which is difficult to realize dual-polarization or increases the thickness of the millimeter wave antenna module, so that the miniaturization and the whole-machine integration of the millimeter wave antenna module are not facilitated.
The antenna design scheme of the current mainstream millimeter wave mainly adopts AiP technology and technology, that is, an array antenna of millimeter wave, a Radio Frequency Integrated Circuit (RFIC) and a Power Management Integrated Circuit (PMIC) are integrated in one module. In practical application, the module is arranged in the mobile phone, so that the module occupies the space of other antennas at present, the performance of the antenna is reduced, and the wireless experience of a user is influenced. Therefore, the embodiment of the invention provides an antenna unit and an electronic device, which can cover all millimeter wave frequency bands, enable an antenna to meet the requirement of dual-frequency dual polarization, and improve the isolation between adjacent antenna units.
Specifically, as shown in fig. 1 to 5, an embodiment of the present invention provides an antenna unit, including:
the metal shell 6 comprises a groove;
the radiation arm structure 3 is arranged in the groove;
the feed part 5 is connected with one end of the radiation arm structure 3, the feed part 5 penetrates through the groove bottom 2 of the groove to be connected with a signal source, and the feed part 5 is insulated from the groove bottom 2;
and one end of the grounding column 4 is connected with the other end of the radiation arm structure 3, the other end of the grounding column 4 is connected with the tank bottom 2, and the tank bottom 2 is grounded.
Optionally, the antenna unit may be a millimeter wave antenna unit.
The number of the millimeter wave antenna units can be at least one; in the case that there are a plurality of millimeter wave antenna units, the plurality of millimeter wave antenna units form a millimeter wave array antenna, and at this time, the isolation between the adjacent millimeter wave antenna units can be improved by the arrangement of the metal shell 6.
Specifically, the number of the feeding portions 5 is the same as that of the radiation arm structures 3, and the number of the grounding posts 4 is the same as that of the radiation arm structures 3; one of the radiating arms 3 is provided with a feeding portion 5 at one end and a grounding post 4 at the other end.
Specifically, as shown in fig. 4 and 5, the metal shell 6 may be circular or square, that is, the accommodating space in the metal shell 6 may be circular or square, and is not limited herein.
In the above embodiment of the present invention, the metal housing 6 includes a groove, the radiation arm structure 3 disposed in the groove, and the feeding portion 5 connected to one end of the radiation arm structure 3, where the feeding portion 5 passes through the groove bottom 2 of the groove and is connected to a signal source, and the feeding portion 5 is insulated from the groove bottom 2; the one end of earthing pole 4 with the other end of radiation arm structure 3 is connected, the other end of earthing pole 4 with tank bottom 2 is connected, 2 ground connection in tank bottom not only can improve the isolation between the adjacent antenna unit, can also make antenna unit's bandwidth increase by a wide margin to can also use dual-port feed to same antenna unit, one can form the MIMO function, with the transmission rate who promotes data, two can constitute the double polarization, increase antenna unit's wireless connection ability, reduce the probability of communication broken string, promote communication effect and user experience.
Alternatively, as shown in fig. 1, each of the radiation arm structures 3 includes:
a first radiating arm 36;
a second radiation arm 37, wherein the second radiation arm 37 is respectively arranged at two ends of the first radiation arm 36;
and a third radiation arm 35, wherein one end of the third radiation arm 35 is connected to the second radiation arm 37, and the other end is connected to the feeding unit 5 or the ground post 4.
Alternatively, as shown in fig. 1, in the same radiation arm structure 3, the length of the first radiation arm 36 is greater than the length of the third radiation arm 35.
Specifically, the first radiating arm 36, the second radiating arm 37 and the third radiating arm 35 together form a metal ring with an opening; in the same radiation arm structure 3, the length of the first radiation arm 36 is greater than the length of the third radiation arm 35, that is, the third radiation arm 35 is an opening.
Specifically, the millimeter wave antenna unit is fed through the feeding portion 5, since the feeding portion 5 is connected to the third radiating arm 35, which is equivalent to a horizontal metal distance passing through the third radiating arm 35, and then since the third radiating arm 35 is connected to the second radiating arm 37, the millimeter wave antenna unit is connected to the first radiating arm 36 through the second radiating arm 37.
Alternatively, as shown in fig. 2 and 3, the radiation arm structure 3 includes: a first radiation arm structure 31 and a second radiation arm structure 32;
wherein the first radiating arm 36 of the first radiating arm structure 31 and the first radiating arm 36 of the second radiating arm structure 32 are fixedly connected to form a cross-shaped structure.
Specifically, in the case where the number of the radiation arm structures 3 is two, the two radiation arm structures 3 include: a first radiation arm structure 31 and a second radiation arm structure 32; the middle part of the first radiation arm 36 of the first radiation arm structure 31 and the middle part of the first radiation arm 36 of the second radiation arm structure 32 are fixedly connected to form a cross-shaped structure, which is equivalent to that the first radiation arm structure 31 and the second radiation arm structure 32 together form two mutually perpendicular open metal rings.
Optionally, as shown in fig. 2, the feeding portion 5 includes a first feeding portion 51 and a second feeding portion 52, and the ground pillar 4 includes a first ground pillar 41 and a second ground pillar 42;
wherein the first feeding portion 51 connected to one end of the first radiating arm structure 31 and the first grounding post 41 connected to the other end of the first radiating arm structure 31 form a set of vertically polarized feeding structures, and the second feeding portion 52 connected to one end of the second radiating arm structure 32 and the second grounding post 42 connected to the other end of the second radiating arm structure 32 form a set of horizontally polarized feeding structures.
Specifically, when the number of the radiation arm structures 3 is two, the number of the feed portions 5 and the number of the ground posts 4 are two; the two feeding portions 5 comprise a first feeding portion 51 and a second feeding portion 52, and the two grounding posts 4 comprise a first grounding post 41 and a second grounding post 42.
One end of the first radiating arm structure 31 is connected to the first feeding portion 51, and the first radiating arm structure 31 is connected to a signal source through the first feeding portion 51; the other end of the first radiating arm structure 31 is connected to the first grounding stud 41, and the first radiating arm structure 31 is connected to the tank bottom 2 (i.e., grounded) through the first grounding stud 41.
Wherein, one end of the second radiating arm structure 32 is connected to the second feeding portion 52, and the second radiating arm structure 32 is connected to a signal source through the second feeding portion 52; the other end of the second radiation arm structure 32 is connected to the second grounding pillar 42, and the second radiation arm structure 32 is connected to the tank bottom 2 (i.e., grounded) through the second grounding pillar 42.
Specifically, the first radiation arm structure 31 is connected to a signal source through the first feeding portion 51, and is connected to ground through the first grounding post 41, the second radiation arm structure 32 is connected to the signal source through the second feeding portion 52, and is connected to ground through the second grounding post 42, that is, a dual-port feeding is used for the same millimeter wave antenna unit, so that a MIMO function can be formed, the transmission rate of data can be increased, dual polarization can be formed, the wireless connection capability of the antenna can be increased, the probability of communication disconnection can be reduced, and the communication effect and user experience can be improved. The first feeding portion 51 and the second feeding portion 52, and the first grounding post 41 and the second grounding post 42 may be located on an X axis and a Y axis of the metal housing 6, which are not limited herein.
Optionally, as shown in fig. 1 to 5, the antenna unit may further include:
a first insulating medium 11 disposed in the groove, at least a portion of the radiation arm structure 3 being exposed on a surface of the first insulating medium 11, or the radiation arm structure 3 being disposed inside the first insulating medium 11.
Specifically, the radiation arm structure 3 may be disposed on a surface of the first insulating medium 11, may be partially embedded in the first insulating medium 11, may be completely embedded in the first insulating medium 11, may be determined according to an actual process, and is not limited herein.
The first insulating medium 11 is a non-conductive material medium, and the dielectric constant of the first insulating medium 11 is preferably 2.53, and the loss tangent is preferably 0.003, which is not particularly limited herein.
Optionally, as shown in fig. 1, the antenna unit may further include:
and a second insulating medium 12 disposed between the first insulating medium 11 and the slot bottom 2, wherein the radiation arm structure 3 is connected to the slot bottom 2 through the second insulating medium 12 via the grounding stud 4.
Specifically, the slot bottom 1 may be provided with a through hole, the radiation arm structure 3 passes through the second insulating medium 12 and the through hole through a feeding portion 5 respectively, and is connected to the signal source, the feeding portion 5 is not in contact with a hole wall of the through hole, and a third insulating medium 13 may be provided between the feeding portion 5 and the hole wall, where the first insulating medium 11, the second insulating medium 12, and the third insulating medium 13 may be different dielectric materials, or may be the same dielectric material, and are not specifically limited herein.
Optionally, the metal housing 6 is a metal frame of the electronic device.
Specifically, the metal housing 6 may be a single metal component, or may be a metal frame of the electronic device, and is not limited herein. If the metal shell 6 is a metal frame of the electronic device, the groove is a groove arranged on the metal frame.
In the above embodiment of the present invention, the metal housing 6 includes a groove, the radiation arm structure 3 disposed in the groove, and the feeding portion 5 connected to one end of the radiation arm structure 3, where the feeding portion 5 passes through the groove bottom 2 of the groove and is connected to a signal source, and the feeding portion 5 is insulated from the groove bottom 2; the one end of ground post 4 with radiation arm structure 3's the other end is connected, the other end of ground post 4 with tank bottom 2 is connected, 2 ground connection in tank bottom not only can improve the isolation between the adjacent antenna element, can also make antenna element's bandwidth increase by a wide margin to can also use the dual-port feed to same antenna element, one can form the MIMO function, with the transmission rate who promotes data, two can constitute the double polarization, increase antenna element's wireless connection ability, reduce the probability of communication broken string, promote communication effect and user experience.
Moreover, the above embodiments of the present invention can be applied to Wireless Communication designs and applications such as Wireless Metropoli Area Networks (WMANs), Wireless Wide Area Networks (WWANs), Wireless Local Area Networks (WLANs), Wireless Personal Area Networks (WPANs), MIMO, Radio Frequency Identification (RFID), or even Near Field Communication (NFC), Wireless charging (WPCs), or Frequency Modulation (FM); and the method can be applied to the regulation test and the actual design and application of the safety and the health of human bodies and the compatibility with the worn electronic devices (such as hearing aids or heart rate regulators).
As shown in fig. 6, an embodiment of the present invention further provides an electronic device, including the antenna unit described in any of the embodiments above, where the number of the antenna units is at least one.
Specifically, the metal housing 6 of the antenna unit may be a metal frame of the electronic device; or at least one accommodating groove is formed in the metal frame of the electronic equipment, and at least one antenna unit is arranged in each accommodating groove. The number of the accommodating grooves is set by actual requirements, and is not limited herein.
Under the condition that at least two accommodating grooves are formed, any two accommodating grooves are arranged on the metal frame at intervals, namely any two millimeter wave antenna units are arranged at intervals, so that the isolation between the millimeter wave antenna units can be improved; and, the millimeter wave antenna unit may form a millimeter wave array antenna, and the millimeter wave array antenna may be one or more. The spacing distance between any two millimeter wave antenna units can be determined according to the isolation between the millimeter wave antenna units and the performance of the scanning angle of the millimeter wave array antenna.
Specifically, the metal frame may also be a metal shell or the like. The metal frame includes a first frame 61, a second frame 62, a third frame 63, and a fourth frame 64, the first frame 61, the second frame 62, the third frame 63, and the fourth frame 64 may be connected end to form the metal frame, and the first frame 61, the second frame 62, the third frame 63, and the fourth frame 64 may also be connected end to end without forming the metal frame.
Further, as shown in fig. 6, in a case that the metal housing 6 of the antenna unit is a metal frame of the electronic device, the electronic device may further include:
and a floor 8 disposed inside the metal shell 6 and connected to the metal shell 6.
In particular, the floor 8 may be a printed circuit board, a metal middle shell, a screen, etc., and the floor 8 may be connected to the metal housing 6.
Further, as shown in fig. 6, when the antenna unit is a millimeter wave antenna unit, the metal shell 6 of the electronic device is a radiator of the non-millimeter wave antenna 7, and the millimeter wave antenna unit is disposed on the radiator.
Specifically, the non-millimeter wave antenna 7 is a 2G/3G/4G communication antenna, and the millimeter wave array antenna is arranged on a radiator of the non-millimeter wave antenna 7, so that the internal space of the whole machine can be saved, and the wireless experience of multiple millimeter wave frequency bands of a user during global roaming can be improved.
The radiator of the non-millimeter wave antenna 7 may be composed of the third frame 63, a part of the second frame 62, and a part of the fourth frame 64; or the radiator of the non-millimeter wave antenna 7 may be composed of the third frame 63. The radiator of the non-millimeter wave antenna 7 may be disposed on the first frame 61, or may be disposed on the second frame 62, or the like. The composition and position of the radiator of the non-millimeter wave antenna 7 are not limited.
Specifically, fig. 7 is a reflection coefficient diagram of one of the millimeter wave antenna units, where the abscissa is a frequency band and the ordinate is a reflection coefficient. Calculated by-10 dB, the antenna unit can cover 24.25GHz-29.5GHz and 37GHz-43GHz, and the antenna unit can basically cover global mainstream 5G millimeter wave frequency bands such as n257, n258, n260 and n261, so that the mobile roaming experience of users is improved. FIG. 8 is a radiation pattern with a frequency of 26GHz, and S1 is the radiation range; fig. 9 shows the radiation pattern at 39GHz, and S2 shows the radiation range.
As shown in fig. 10 and 11, when the 5G electronic device is horizontally placed (i.e. located in the XY plane), the scanning direction is the XY plane, and the 5G hot spot (i.e. the 5G millimeter wave hot spot) is usually located on the building on the upper side; if the directional diagram is in the positive X-axis direction, there may be a case where the connection cannot be established efficiently. As shown in fig. 11, due to the beam tilt phenomenon caused by the unbalanced feed point and the unbalanced location of the millimeter wave antenna unit, when the directional diagram of the electronic device has a certain tilt, the antenna unit according to the embodiment of the present invention can implement efficient connection between the 5G electronic device and the 5G hot spot on the upper building.
In the above embodiment of the present invention, the millimeter wave antenna unit includes the metal housing 6, so that the antenna can meet the requirement of dual-frequency and dual-polarization; in addition, the millimeter wave loop antenna has a plurality of current paths with different lengths, so that the millimeter wave loop antenna can cover 24.25GHz-29.5GHz at a low frequency, can cover 37GHz-40GHz at a high frequency, and basically can cover global mainstream 5G millimeter wave frequency bands such as n257, n258, n260, n261 and the like, thereby improving the mobile communication experience of users; moreover, the dual-polarized millimeter wave loop antenna has the phenomenon that the wave beam of the dual-polarized millimeter wave loop antenna is inclined due to the fact that a feed point (namely a connection point of the feed part 5 and a signal source) and a place (namely a connection point of the grounding post 4 and the groove bottom 2) are unbalanced, so that the directional diagram of the electronic equipment can be inclined to a certain degree through the millimeter wave antenna unit, the directional diagram can be reconstructed, and the electronic equipment is better connected with a 5G hot spot; moreover, based on the design of the metal frame of the electronic equipment, the metal texture of the electronic equipment is not affected, the integrity of the metal frame is kept, meanwhile, the metal frame is used as a reflector of the millimeter wave antenna unit, so that higher gain is obtained, and meanwhile, the millimeter wave antenna unit is not sensitive to the environment and devices inside the electronic equipment, so that the design of stacking of the electronic equipment structure is facilitated; the millimeter wave antenna unit and the non-millimeter wave antenna with the metal frame or the metal shell as the antenna can be integrated into a whole, namely the millimeter wave antenna unit is compatible in the non-millimeter wave antenna with the metal frame or the metal shell as the antenna; and the same millimeter wave antenna unit is fed by using double ports, one can form an MIMO function to improve the transmission rate of data, and the other can form dual polarization to increase the wireless connection capability of the antenna, reduce the probability of communication disconnection and improve the communication effect and user experience.
For convenience of description, the above embodiments have been described by using a mobile phone as a specific example of the electronic device of the present invention, and it can be understood by those skilled in the art that the embodiments of the present invention can be applied to other electronic devices besides a mobile phone as an electronic device, such as a tablet computer, an electronic book reader, an MP3 (motion Picture Experts Group Audio Layer III) player, an MP4 (motion Picture Experts Group Audio Layer IV) player, a laptop computer, a car computer, a desktop computer, a set-top box, an intelligent television, a wearable device, and the like, which are within the scope of the embodiments of the present invention.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.
Claims (8)
1. An antenna unit, comprising:
the metal shell (6) comprises a groove;
a radiating arm structure (3) arranged in the groove;
the feed part (5) is connected with one end of the radiation arm structure (3), the feed part (5) penetrates through the groove bottom (2) of the groove to be connected with a signal source, and the feed part (5) is insulated from the groove bottom (2);
one end of the grounding column (4) is connected with the other end of the radiation arm structure (3), the other end of the grounding column (4) is connected with the tank bottom (2), and the tank bottom (2) is grounded;
the radiation arm structure (3) comprises: a first radiating arm structure (31) and a second radiating arm structure (32);
wherein the first radiating arm (36) of the first radiating arm structure (31) and the first radiating arm (36) of the second radiating arm structure (32) are fixedly connected to form a cross-shaped structure;
the feeding part (5) comprises a first feeding part (51) and a second feeding part (52), and the grounding column (4) comprises a first grounding column (41) and a second grounding column (42);
wherein the first feeding portion (51) connected to one end of the first radiating arm structure (31) and the first grounding post (41) connected to the other end of the first radiating arm structure (31) form a set of vertically polarized feeding structures, and the second feeding portion (52) connected to one end of the second radiating arm structure (32) and the second grounding post (42) connected to the other end of the second radiating arm structure (32) form a set of horizontally polarized feeding structures.
2. The antenna element according to claim 1, characterized in that each of said radiating arm structures (3) comprises:
a first radiating arm (36);
the two ends of the first radiation arm (36) are respectively provided with the second radiation arm (37);
and one end of the third radiating arm (35) is connected with the second radiating arm (37), and the other end of the third radiating arm (35) is connected with the feeding part (5) or the grounding post (4).
3. The antenna element according to claim 2, characterized in that in the same radiating arm structure (3) the length of the first radiating arm (36) is greater than the length of the third radiating arm (35).
4. The antenna unit of claim 1, further comprising:
the first insulating medium (11) is arranged in the groove, at least one part of the radiation arm structure (3) is exposed on the surface of the first insulating medium (11), or the radiation arm structure (3) is arranged in the first insulating medium (11).
5. The antenna unit of claim 4, further comprising:
and the second insulating medium (12) is arranged between the first insulating medium (11) and the groove bottom (2), and the radiation arm structure (3) penetrates through the second insulating medium (12) through the grounding column (4) and is connected with the groove bottom (2).
6. The antenna unit according to claim 1, characterized in that the metal housing (6) is a metal bezel of an electronic device.
7. The antenna element according to any of claims 1 to 6, characterized in that said antenna element is a millimeter wave antenna element.
8. An electronic device, characterized in that it comprises an antenna unit according to any one of claims 1 to 7;
wherein the number of the antenna units is at least one.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911198715.1A CN110911815B (en) | 2019-11-29 | 2019-11-29 | Antenna unit and electronic equipment |
| PCT/CN2020/131028 WO2021104229A1 (en) | 2019-11-29 | 2020-11-24 | Antenna unit and electronic device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911198715.1A CN110911815B (en) | 2019-11-29 | 2019-11-29 | Antenna unit and electronic equipment |
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| CN110911815A CN110911815A (en) | 2020-03-24 |
| CN110911815B true CN110911815B (en) | 2022-09-27 |
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| CN110911815B (en) * | 2019-11-29 | 2022-09-27 | 维沃移动通信有限公司 | Antenna unit and electronic equipment |
| CN112909512B (en) * | 2021-02-08 | 2022-08-02 | 上海安费诺永亿通讯电子有限公司 | Ultra-wideband antenna and antenna array |
| CN114374085B (en) * | 2021-12-09 | 2023-07-21 | 南通大学 | Dual-polarized hybrid antenna for 5G millimeter wave dual-band application |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6014107A (en) * | 1997-11-25 | 2000-01-11 | The United States Of America As Represented By The Secretary Of The Navy | Dual orthogonal near vertical incidence skywave antenna |
| DE102008041651A1 (en) * | 2008-08-28 | 2010-03-04 | Robert Bosch Gmbh | electrical appliance |
| US9112258B1 (en) * | 2012-06-12 | 2015-08-18 | The United States Of America As Represented By The Secretary Of The Navy | Electrically small circularly polarized antenna |
| US10270174B2 (en) * | 2017-07-25 | 2019-04-23 | Apple Inc. | Millimeter wave antennas having cross-shaped resonating elements |
| CN209496996U (en) * | 2018-12-22 | 2019-10-15 | 中国电波传播研究所（中国电子科技集团公司第二十二研究所） | A kind of differential bipolar paster antenna based on split ring resonator |
| CN109672023B (en) * | 2018-12-22 | 2024-02-27 | 中国电波传播研究所（中国电子科技集团公司第二十二研究所） | Differential dual-polarized patch antenna based on split resonant ring |
| CN109687165A (en) * | 2018-12-29 | 2019-04-26 | 瑞声科技（南京）有限公司 | Millimeter wave array antenna mould group and mobile terminal |
| CN110137675B (en) * | 2019-05-22 | 2021-03-12 | 维沃移动通信有限公司 | Antenna unit and terminal equipment |
| CN110474158A (en) * | 2019-08-30 | 2019-11-19 | 维沃移动通信有限公司 | A kind of antenna element and terminal device |
| CN110911815B (en) * | 2019-11-29 | 2022-09-27 | 维沃移动通信有限公司 | Antenna unit and electronic equipment |
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2019
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| CN110911815A (en) | 2020-03-24 |
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