CN110911816A - Antenna unit and electronic equipment - Google Patents
Antenna unit and electronic equipment Download PDFInfo
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- CN110911816A CN110911816A CN201911198724.0A CN201911198724A CN110911816A CN 110911816 A CN110911816 A CN 110911816A CN 201911198724 A CN201911198724 A CN 201911198724A CN 110911816 A CN110911816 A CN 110911816A
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- control switch
- arm structure
- antenna
- radiation arm
- antenna unit
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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
- H01Q1/48—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
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/24—Polarising devices; Polarisation filters
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
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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
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/335—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
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 parts are respectively arranged at two ends corresponding to the radiation arm structures and are insulated from the groove bottom of the groove; and the control switch is arranged outside the metal shell, and the feed part penetrates through the slot bottom and is connected with a signal source or a signal reference ground through the control switch. According to the scheme, not only can a plurality of frequency bands be covered, but also the feed part is connected with a signal source or a signal reference ground through the control switch, and the directional diagram can be reconstructed by switching feed points and places through the control switch; and the same antenna unit is fed by double ports, so that an MIMO function can be formed, the transmission rate of data is improved, dual polarization can be formed, the wireless connection capacity of the antenna is improved, the probability of communication disconnection is reduced, and the communication effect and the 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 resonance frequency of the multi-frequency AiP module to shift, narrow the bandwidth, even the bandwidth of some frequency bands to disappear, 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, which affects the mobile roaming experience of users;
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 parts are respectively arranged at two ends corresponding to the radiation arm structures and are insulated from the groove bottom of the groove;
and the control switch is arranged outside the metal shell, and the feed part penetrates through the slot bottom and is connected with a signal source or a signal reference ground through the control switch.
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, a feeding portion disposed at each of two ends of the radiation arm structure, and a control switch disposed outside the metal housing, wherein the feeding portion passes through the groove bottom and is connected to a signal source or a signal reference ground through the control switch, and the feeding portion is insulated from the groove bottom and can cover multiple frequency bands; the feeding part is connected with a signal source or a signal reference ground through the control switch, and a directional diagram can be reconstructed by switching a feeding point (namely a connection point of the control switch and the signal source) and a place (namely a connection point of the control switch and the signal reference ground) through the control switch; and, use the dual-port feed to the same antenna element, one can form the Multiple Input Multiple Output (MIMO) function, in order to promote the transmission rate of the data, two can form the dual polarization, increase the wireless connectivity of the aerial, reduce the probability of the 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 present 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 radiation pattern with a frequency of 26GHz for a time state of an embodiment of the present invention;
FIG. 9 shows a radiation pattern with a frequency of 39GHz for a time state of an embodiment of the invention;
FIG. 10 shows the radiation pattern at a frequency of 26GHz in the second state of the embodiment of the invention;
FIG. 11 shows the radiation pattern at 39GHz according to the second embodiment of the invention;
FIG. 12 is a schematic diagram illustrating an embodiment of an electronic device not connected to a hotspot;
FIG. 13 is a schematic diagram illustrating a connection between an electronic device and a hotspot according to an embodiment of the invention;
FIG. 14 is a second schematic diagram illustrating 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 structure, 32-a second radiating arm structure, 35-a first radiating arm, 36-a second radiating arm, 37-a third radiating arm, 4-a control switch, 41-a first control switch, 42-a second control switch, 5-a feed part, 6-a metal shell, 61-a first frame, 62-a second frame, 63-a third frame, 64-a fourth frame, 7-a signal source, 8-a non-millimeter wave antenna and 9-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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope 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 volume size of the whole system is increased to accommodate a plurality of discrete antennas, so that the whole competitiveness of the product is reduced. 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 of 28GHz, and n260(37.0-40.0GHz) and provisional n259(40.5-43.5GHz) frequency bands of 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 antennas is reduced, and the wireless experience of users 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, 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 6;
the feeding parts 5 are respectively arranged corresponding to the two ends of the radiation arm structure 3 and are insulated from the groove bottom 2 of the groove;
and the control switch 4 is arranged outside the metal shell 6, and the feed part 5 penetrates through the slot bottom 2 and is connected with a signal source 7 or a signal reference ground through the control switch 4.
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 the number of the millimeter wave antenna units is plural, the plural 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 twice the number of the radiating arm structures 3, that is, two ends of one radiating arm 3 are respectively provided with one feeding portion 5.
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, the feeding portions 5 disposed at two ends of the radiation arm structure 3, respectively, and the control switch 4 disposed outside the metal housing 6, wherein the feeding portion 5 passes through the slot bottom 2 and is connected to the signal source 7 or the signal reference ground through the control switch 4, and the feeding portion 5 is insulated from the slot bottom 2, so as to cover multiple frequency bands; the power feeding unit 5 is connected to the signal source 7 or the signal reference ground through the control switch 4, and the directional diagram can be reconfigured by switching the feed point (i.e., the connection point between the control switch 4 and the signal source 7) and the point (i.e., the connection point between the control switch 4 and the signal reference ground) through the control switch 4; and the same antenna unit is fed by double ports, one can form an MIMO function to improve the transmission rate of data, and the other can form dual polarization, thereby increasing the wireless connection capacity of the antenna, reducing the probability of communication disconnection, and improving the communication effect and user experience.
Alternatively, as shown in fig. 1, the radiation arm structure 3 may include:
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.
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 unit 5, and since the feeding unit 5 is connected to the third radiating arm 35, it 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, it 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. The cross structure includes four ends, each of which is connected to one of the feeding portions 5, and the four feeding portions 5 are located on the X axis and the Y axis of the metal housing 6, which is not limited herein.
Optionally, as shown in fig. 1, the control switch 4 includes:
a first control switch 41, a power feed unit 5 connected to one end of the first radiation arm structure 31, the power feed unit 5 connected to one of the signal source 7 and the signal reference ground through the first control switch 41, and the power feed unit 5 connected to the other end of the first radiation arm structure 31, the power feed unit connected to the other of the signal source 7 and the signal reference ground through the first control switch 41.
Optionally, as shown in fig. 1, the control switch 4 may further include:
a second control switch 42, wherein the feeding unit 5 connected to one end of the second radiating arm structure 32 is connected to one of the signal source 7 and the signal reference ground through the second control switch 42, and the feeding unit 5 connected to the other end of the second radiating arm structure 32 is connected to the other of the signal source 7 and the signal reference ground through the second control switch 42;
wherein, the feeding portions 5 connected to the two ends of the first radiating arm structure 31 form a set of vertically polarized feeding structures through the first control switch 41; the feeding portions 5 connected to both ends of the second radiating arm structure 32 form a set of horizontally polarized feeding structures through the second control switch 42.
Specifically, when the number of the radiation arm structures 3 is two, the number of the feeding portions 5 is 4, and the number of the control switches 4 is two; the two feeding portions 5 are respectively connected to two ends of the first radiating arm structure 31, and both the two feeding portions 5 are connected to a first control switch 41 and connected to a signal source 7 or a signal reference ground through the first control switch 41. Two other feeding portions 5 are connected to two ends of the second radiating arm structure 32, respectively, and both feeding portions 5 are connected to a second control switch 42 and connected to a signal source 7 or a signal reference ground through the second control switch 42. That is, two of the 4 feeding sections 5 directly feed the millimeter wave antenna element, and the other two are directly grounded, thereby forming one circular millimeter wave antenna.
Specifically, the feeding units 5 connected to both ends of the first radiation arm structure 31 constitute a pair of feeding points and positions of the vertically polarized directional pattern reconfigurable millimeter wave antenna, and the state is switched by the first control switch 41; when the feeding portion 5 connected to the first end of the first radiating arm structure 31 is connected to the signal source 7, and the feeding portion 5 connected to the second end of the first radiating arm structure 31 is connected to the signal reference ground, the pattern is biased toward the feeding portion 5 connected to the second end of the first radiating arm structure 31 (i.e., the ground point), which is called state one; when the feeding portion 5 connected to the first end of the first radiating arm structure 31 is connected to a signal reference ground and the feeding portion 5 connected to the second end of the first radiating arm structure 31 is connected to the signal source 7, the pattern is biased toward the feeding portion 5 connected to the first end of the first radiating arm structure 31 (i.e., a ground point), which is referred to as state two. Similarly, the feeding portions 5 connected to the two ends of the second radiation arm structure 32 form a pair of feeding points and locations of the horizontally polarized directional diagram reconfigurable millimeter wave antenna unit, and the working state is the same as that in the case of vertical polarization, which is not described herein again. The amplitudes of the signals on the four feeding portions 5 are the same.
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, 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 feeding portion 5 is connected to the control switch 4 through the second insulating medium 12.
Specifically, the slot bottom 1 may be provided with a through hole, the radiation arm structure 3 passes through the second insulating medium 12 through the feeding portion 5, and the through hole is connected to the signal source 7 or the signal reference, 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 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, the feeding portions 5 disposed at two ends of the radiation arm structure 3, respectively, and the control switch 4 disposed outside the metal housing 6, wherein the feeding portion 5 passes through the slot bottom 2 and is connected to the signal source 7 or the signal reference ground through the control switch 4, and the feeding portion 5 is insulated from the slot bottom 2, so as to cover multiple frequency bands; the power feeding unit 5 is connected to the signal source 7 or the signal reference ground through the control switch 4, and the directional diagram can be reconfigured by switching the feed point (i.e., the connection point between the control switch 4 and the signal source 7) and the point (i.e., the connection point between the control switch 4 and the signal reference ground) through the control switch 4; and the same antenna unit is fed by double ports, one can form an MIMO function to improve the transmission rate of data, and the other can form dual polarization, thereby increasing the wireless connection capacity of the antenna, reducing the probability of communication disconnection, and improving the 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), even Near Field Communication (NFC), Wireless charging (WPC), 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 above embodiments, 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 9 disposed inside the metal shell 6 and connected to the metal shell 6.
Specifically, the floor 9 may be a printed circuit board, a metal middle shell, a screen, or the like, and the floor 9 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 8, and the millimeter wave antenna unit is disposed on the radiator.
Specifically, the non-millimeter wave antenna 8 is a 2G/3G/4G communication antenna, and the millimeter wave array antenna is arranged on a radiator of the non-millimeter wave antenna 8, 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 8 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 8 may be composed of the third frame 63. The radiator of the non-millimeter wave antenna 8 may be disposed on the first frame 61, or on the second frame 62, or the like. The composition and position of the radiator of the non-millimeter wave antenna 8 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 in state one, and S1 is a radiation range; FIG. 9 is a radiation pattern with a frequency of 39GHz in state one, and S2 is a radiation range; FIG. 10 is the radiation pattern at 26GHz in state two, with S3 being the radiation range; fig. 11 shows the radiation pattern with the frequency of 39GHz in the second state, and S4 shows the radiation range.
As shown in fig. 12, when the 5G electronic device is horizontally placed (i.e. located on the XY plane), the scanning direction is the XY plane, and the 5G hot spot (i.e. 5G millimeter wave hot spot) is usually located on the building or the ground 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. 13 and 14, the state one and the state two can be switched by the control switch 4, so that the 5G electronic equipment can be efficiently connected with the 5G millimeter wave hot spot on the upper building or the ground.
In the above embodiment of the present invention, the antenna can meet the dual-frequency dual-polarization requirement by the millimeter wave antenna unit (i.e. the millimeter wave loop antenna) built in the metal housing 6; 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-polarization millimeter wave loop antenna has the phenomenon that the wave beam is inclined due to the fact that a feed point (namely a connection point of the control switch 4 and the signal source 7) and a place (namely a connection point of the control switch 4 and a signal reference ground) are unbalanced, so that the directional diagram can be reconstructed by switching the feed point and the place through the control switch 4; 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 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 capacity 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 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 compressed standard Audio Layer 3, motion Picture experts Group Audio Layer III) player, an MP4 (motion Picture experts compressed standard Audio Layer 4, 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 protection 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, herein, relational terms such as first and second, and the like may be 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 (11)
1. An antenna unit, comprising:
the metal shell (6) comprises a groove;
a radiating arm structure (3) arranged in the groove;
the feed parts (5) are respectively arranged corresponding to two ends of the radiation arm structure (3) and are insulated from the groove bottom (2) of the groove;
the control switch (4) is arranged outside the metal shell (6), and the feed portion (5) penetrates through the groove bottom (2) and is connected with a signal source (7) or a signal reference ground through the control switch (4).
2. The antenna element according to claim 1, characterized in that the radiating arm structure (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 radiation arm (35) is connected with the second radiation arm (37), and the other end of the third radiation arm (35) is connected with the feeding part (5).
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 element according to claim 1, characterized in that the radiating 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.
5. The antenna unit according to claim 4, characterized in that the control switch (4) comprises:
a first control switch (41), a power feed unit (5) connected to one end of the first radiation arm structure (31), the power feed unit (5) connected to one of the signal source (7) and the signal reference ground through the first control switch (41), and the power feed unit (5) connected to the other end of the first radiation arm structure (31) is connected to the other of the signal source (7) and the signal reference ground through the first control switch (41).
6. The antenna unit according to claim 5, characterized in that the control switch (4) further comprises:
a second control switch (42), a power feed section (5) connected to one end of the second radiation arm structure (32), the power feed section (5) connected to one of the signal source (7) and the signal reference ground through the second control switch (42), the power feed section (5) connected to the other end of the second radiation arm structure (32), the power feed section connected to the other of the signal source (7) and the signal reference ground through the second control switch (42);
wherein a set of vertically polarized feed structures is formed by the first control switch (41) of the feed sections (5) connected to both ends of the first radiating arm structure (31); and the feeding parts (5) are connected to two ends of the second radiation arm structure (32), and a group of horizontally polarized feeding structures are formed through the second control switch (42).
7. The antenna unit of claim 1, further comprising:
a first insulating medium (11) disposed in the groove, at least a portion of the radiation arm structure (3) being exposed at a surface of the first insulating medium (11), or the radiation arm structure (3) being disposed inside the first insulating medium (11).
8. The antenna unit of claim 7, further comprising:
and the second insulating medium (12) is arranged between the first insulating medium (11) and the groove bottom (2), and the feed part (5) penetrates through the second insulating medium (12) and is connected with the control switch (4).
9. The antenna unit according to claim 1, characterized in that the metal housing (6) is a metal bezel of an electronic device.
10. The antenna element according to any of claims 1 to 9, characterized in that said antenna element is a millimeter wave antenna element.
11. An electronic device, characterized in that it comprises an antenna unit according to any one of claims 1 to 10;
wherein the number of the antenna units is at least one.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911198724.0A CN110911816B (en) | 2019-11-29 | 2019-11-29 | Antenna unit and electronic equipment |
| PCT/CN2020/131026 WO2021104228A1 (en) | 2019-11-29 | 2020-11-24 | Antenna unit and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911198724.0A CN110911816B (en) | 2019-11-29 | 2019-11-29 | Antenna unit and electronic equipment |
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| Publication Number | Publication Date |
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| CN110911816A true CN110911816A (en) | 2020-03-24 |
| CN110911816B CN110911816B (en) | 2023-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911198724.0A Active CN110911816B (en) | 2019-11-29 | 2019-11-29 | Antenna unit and electronic equipment |
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| Country | Link |
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| CN (1) | CN110911816B (en) |
| WO (1) | WO2021104228A1 (en) |
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| CN111969304A (en) * | 2020-08-18 | 2020-11-20 | 维沃移动通信有限公司 | Antenna structure and electronic equipment |
| WO2021104228A1 (en) * | 2019-11-29 | 2021-06-03 | 维沃移动通信有限公司 | Antenna unit and electronic device |
| WO2021104239A1 (en) * | 2019-11-29 | 2021-06-03 | 维沃移动通信有限公司 | Antenna unit and electronic device |
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Also Published As
| Publication number | Publication date |
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| WO2021104228A1 (en) | 2021-06-03 |
| CN110911816B (en) | 2023-01-24 |
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