CN110635243A - A kind of antenna unit and electronic equipment - Google Patents

Abstract

The invention provides an antenna unit and electronic equipment, and relates to the technical field of communication. The antenna unit includes: a metal plate, the metal plate is provided with a groove; a feeding probe; a metal sheet arranged in the groove and forming an orthogonal differential feed, the feeding probe passes through the groove bottom of the groove, And the feeder is connected with the metal sheet, wherein the feeder is a bent feeder. The solution of the present invention uses the metal plate as a part of the antenna unit, which can avoid the influence of the metal plate on the performance of the antenna, thereby improving the wireless experience of multiple frequency bands of the user when roaming around the world; and, by forming an orthogonal differential feed in the groove The electric metal sheet has MIMO function to increase the data transmission rate, and can also form dual polarization, increase the wireless connection capability of the array antenna, reduce the probability of communication disconnection, improve the communication effect and user experience, and, through bending The feed line connects the feed probe to the metal sheet, and the relevant variables can be adjusted for impedance matching.

Description

A kind of antenna unit and electronic equipment

technical field

The invention relates to the technical field of communication, in particular to an antenna unit and electronic equipment.

Background technique

At present, when millimeter-wave antenna-in-package (AiP, Antenna in package) is placed in electronic devices such as mobile phones, due to the impact of non-metallic materials such as the casing/battery cover of the electronic device on the millimeter-wave antenna, it often causes multi-frequency millimeter-wave The resonant frequency of the antenna module AiP is shifted, the bandwidth is narrowed, and even the bandwidth of some frequency bands disappears; and the millimeter-wave antenna in the prior art is extremely susceptible to the influence of surrounding metal devices, such as metal frames, metal backs, etc. The impact of metal parts such as covers, horns, speakers, etc., leads to a sharp decline in antenna performance. For electronic equipment with a metal appearance, it is necessary to set a certain window for the millimeter-wave antenna, or reduce the metal ratio of the electronic equipment; and the millimeter-wave antenna in the prior art generally has a poor standing wave ratio (VSWR, Voltage Standing Wave Ratio ) covers n258 (24.25-27.5GHz) and n261 (27.5-28.35GHz) frequency bands and n260 (37.0-40.0GHz) mainly at 39GHz, and needs to switch the feed structure of the antenna to complete the switching from n258, n261 to n260; and The millimeter wave antenna in the prior art cannot support carrier aggregation (CA, CarrierAggregation).

Contents of the invention

Embodiments of the present invention provide an antenna unit and electronic equipment to solve the existing problems of low data transmission rate and small frequency band coverage.

In order to solve the problems of the technologies described above, the present invention is achieved in that:

In a first aspect, an embodiment of the present invention provides an antenna unit, including:

a metal plate, the metal plate is provided with grooves;

feed probe;

A metal sheet arranged in the groove and forming an orthogonal differential feed, the feeding probe passes through the bottom of the groove, and is connected to the metal sheet through a feeder line, wherein the feeder line is Bend the feeder.

In a second aspect, an embodiment of the present invention further provides an electronic device, the electronic device is a first electronic device, which includes a metal frame, and further includes the above-mentioned antenna unit;

Wherein, at least one accommodating slot is arranged on the metal frame, and at least one antenna unit is arranged in each accommodating slot.

In a third aspect, an embodiment of the present invention further provides an electronic device, the electronic device is a second electronic device, and includes the antenna unit as described above;

Wherein, the metal plate is at least a part of the metal frame of the electronic device.

In this way, in the embodiment of the present invention, the metal plate is used as a part of the antenna unit, which can avoid the influence of the metal plate on the performance of the antenna, thereby improving the user's wireless experience in multiple frequency bands when roaming around the world; and, by using the metal plate The metal sheet forming an orthogonal differential feed has a multiple-input multiple-output (MIMO, Multiple-Input Multiple-Output) function to increase the data transmission rate, and can also form dual polarization to increase the wireless connection capability of the array antenna. Reduce the probability of communication disconnection, improve communication effect and user experience, and connect the feeding probe with the metal sheet by bending the feeder, and adjust relevant variables for impedance matching.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments of the present invention. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a schematic diagram of disassembly of an antenna unit according to an embodiment of the present invention;

2 is a top view of an antenna unit according to an embodiment of the present invention;

3 is a schematic diagram of the internal structure of an antenna unit according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention;

5 is a reflection coefficient diagram of an antenna unit according to an embodiment of the present invention;

FIG. 6 is a radiation pattern diagram of 28 GHz according to an embodiment of the present invention;

FIG. 7 is a radiation pattern diagram of 39 GHz according to an embodiment of the present invention;

Explanation of reference signs:

11-first metal frame, 12-second metal frame, 13-third metal frame, 14-fourth metal frame, 2-metal plate, 3-feed probe, 4-metal sheet, 41-first metal Sheet, 42-second metal sheet, 43-third metal sheet, 44-fourth metal sheet, 5-first insulating medium, 6-second insulating medium, 7-feeder, 8-third insulating medium, 9- floor, 10-non-millimeter-wave antenna.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

At present, with the development of 5G (fifth generation mobile communication), the design of millimeter wave antennas is gradually introduced to some small electronic devices, such as mobile phones, tablets, laptops, etc., so the overall competitive size of the system is maintained. In this case, the effective radiation space allocated to each antenna is reduced, which in turn degrades antenna performance and degrades user wireless experience. Or, in order to accommodate multiple discrete antennas, the volume size of the overall system is increased, which reduces the overall competitiveness of the product. The millimeter-wave antenna is often in the form of an independent antenna module, which is usually set separately from existing antennas, such as cellular antennas and non-cellular antennas, so it is easy to cause the overall size of the system to be reduced. increase, which reduces the overall competitiveness of the product.

Moreover, in the currently planned 5G millimeter wave band, there are n257 (26.5-29.5GHz), n258 (24.25-27.5GHz), and n261 (27.5-28.35GHz) frequency bands dominated by 28GHz and n260 (37.0- 40.0GHz) and other frequency bands. Therefore, in addition to the above-mentioned spatial dimension requirements for wireless performance, there is also a frequency dimension roaming requirement. The main antenna unit of the millimeter-wave antenna module is patch (patch antenna), Yagi-Uda (Yagi-Uda antenna), or dipole (dipole antenna). These antenna units are relatively narrow-band antennas, such as patches. Basically no more than 8%, and the millimeter-wave frequency band often requires broadband dual-band or multi-band forms, which brings great challenges to the design of millimeter-wave antenna modules. In order to meet the requirements of broadband, dual-band, or even multi-band, for patches, it is often necessary to slot on the radiation sheet of the patch or adopt a stacked structure, which is often difficult to achieve dual-polarization Or it will increase the thickness of the millimeter-wave antenna module, which is not conducive to the miniaturization and integration of the millimeter-wave antenna module.

At present, the mainstream millimeter-wave antenna design scheme mainly adopts the technology and process of packaged antenna, that is, the millimeter-wave array antenna, radio frequency integrated circuit (RFIC, Radio Frequency Intergarted Circuit) and power management integrated circuit (PMIC, Power Management Intergarted Circuit) Integrated in a module, this module is set inside the mobile phone, occupying the space of other antennas, resulting in the degradation of antenna performance, thereby affecting the user's wireless experience. Therefore, the embodiment of the present invention provides an antenna unit and an electronic device, which can not only eliminate the influence of the metal plate on the antenna, improve the user's wireless experience in multiple frequency bands when roaming around the world, but also have a MIMO function to increase the data transmission rate , can also form dual polarization, increase the wireless connection capability of the array antenna, reduce the probability of communication disconnection, and improve communication effect and user experience.

Specifically, as shown in Figures 1 to 3, an embodiment of the present invention provides an antenna unit, including:

A metal plate 2, the metal plate 2 is provided with grooves;

Feed probe 3;

The metal sheet 4 that is arranged in the groove and forms an orthogonal differential feed, the feeding probe 3 passes through the bottom of the groove, and is connected to the metal sheet 4 through a feeder 7, wherein, The feeder 7 is a bent feeder.

Wherein, the number of the feeding probe 3 and the metal sheet 4 may be the same, and there is a one-to-one correspondence, that is, one feeding probe 3 corresponds to one metal sheet 4 .

Further, the antenna unit may be a millimeter-wave antenna unit, and the metal sheet 4 may be a trapezoidal metal sheet. In the trapezoidal metal sheet, the end close to the groove wall of the groove is the longer lower part of the trapezoidal metal sheet. Bottom, one end away from the groove wall of the groove is the shorter upper bottom of the trapezoidal metal sheet. For example: when the groove is a square groove, the upper bottom of the trapezoidal metal sheet is close to the center line of the groove, and the lower bottom of the trapezoidal metal sheet is close to the groove wall of the groove. The metal sheet 4 can also be a metal sheet of other shapes, which is not limited here.

In the above embodiments of the present invention, the metal plate 2 is used as a part of the antenna unit, which can avoid the influence of the metal plate 2 on the performance of the millimeter-wave antenna, thereby improving the wireless experience of the user's multiple millimeter-wave frequency bands when roaming around the world; and, by The metal sheet 4 with orthogonal differential feed is formed in the metal plate 2, which has a MIMO function to increase the data transmission rate, and can also form dual polarization, increase the wireless connection capability of the millimeter wave array antenna, and reduce communication disconnection The probability of improving the communication effect and user experience, and connecting the feeding probe 3 and the metal sheet 4 by bending the feeder, can adjust the relevant variables for impedance matching; and, the metal sheet is excited by the feeder 7 at a low frequency The radiation of 2 can cover 24.25GHz-29.5GHz at low frequency, and the feeder 7 itself acts as a deformed dipole radiation at high frequency, which can cover 35GHz-40.0GHz and can basically cover n257, n258, n260, n261 and other 5G millimeter wave frequency bands , thereby improving the user's mobile roaming experience.

Further, as shown in FIGS. 1 to 3 , a first insulating medium 5 is set in the groove, and the metal sheet 4 is set in the first insulating medium 5 .

Specifically, the metal sheet 4 can be arranged inside the first insulating medium 5, or on the surface of the first insulating medium 5 away from the groove bottom of the groove, which can be set according to the actual process , is not limited here.

Wherein, the first insulating medium 5 is a dielectric material, which is also called a dielectric, and is a material characterized by electric polarization. Dielectric materials transmit, store or record the effects and effects of electric fields by induction rather than conduction. Among them, electric polarization is the phenomenon that under the action of an external electric field, the relative displacement of the positive and negative charge centers in the molecule produces an electric dipole moment, and the dielectric constant is the most basic parameter to characterize the dielectric.

Further, as shown in Figures 1 to 3, the antenna unit may further include:

A second insulating medium 6 is disposed between the first insulating medium 5 and the groove bottom of the groove, and a part of the feeding probe 3 is in the second insulating medium 6 .

Wherein, a part of the feeding probe 3 is in the second insulating medium 6 , and another part can pass through the bottom of the metal plate 2 and be connected to the RFIC.

Further, the feeder includes a first feeder part and a second feeder part connected to the first feeder part, the first feeder part and the second feeder part are not on the same straight line or plane, and the two form an angle. The included angle can be an angle greater than zero degree and less than 180 degree.

Wherein, a part of the feeder line may be arranged in the first insulating medium, and another part is arranged in the second insulating medium.

Specifically, since the feeder 7 is a bent feeder, according to the relative position of the feeder probe 3 and the metal sheet 4, the first feeder part of the feeder 7 can be horizontally routed for a certain distance in the second medium 6 , and then the second feeder part of the feeder 7 is routed vertically, and the feeder probe 3 is connected to the metal sheet 4; the first feeder part of the feeder 7 can also be routed horizontally for a section in the first medium 5 The second feeder part of the feeder 7 is routed vertically, and the feeder probe 3 is connected to the metal sheet 4, and related variables can be adjusted for impedance matching. It is also possible to directly set the feeder line 7 as a vertical path to connect the feeder probe 3 with the metal sheet 4 . Specifically, the position and path of the feeder 7 can be set according to actual needs.

Specifically, the second insulating medium 6 is a dielectric material, the second insulating medium 6 can be the same dielectric material as the first insulating medium 5, and the second insulating medium 6 can also be the same as the first insulating medium 5. The first insulating medium 5 is a different dielectric material.

Further, as shown in FIG. 3 , each of the feeding probes 3 is surrounded by a third insulating medium 8 , and each of the feeding probes 3 passes through the third insulating medium 8 and the metal Board 2 is connected.

Wherein, the third insulating medium 8 is a dielectric material, and the third insulating medium 8 may be the same dielectric material as the first insulating medium 5 and the second insulating medium 6, and the third insulating medium 8 It may also be a different dielectric material from the first insulating medium 5 and the second insulating medium 6 . The first insulating medium 5 , the second insulating medium 6 and the third insulating medium 8 are non-conductive materials with a dielectric constant of 2-4, and the loss tangent value is greater than 0 and less than 0.01. Preferably, a dielectric material with a dielectric constant of 2.53 and a loss tangent of 0.003 can be used.

Further, as shown in Figures 1 and 2, the metal sheet 4 may include:

A first metal sheet 41 and a second metal sheet 42 that are on the same straight line and opposite to each other and are insulated from each other;

The third metal sheet 43 and the fourth metal sheet 44 which are on the same straight line and opposite to each other and are insulated from each other;

Wherein, the first metal sheet 41 and the second metal sheet 42 form a set of vertically polarized feed structures, and the third metal sheet 43 and the fourth metal sheet 44 form a set of horizontally polarized feed structures. The feed structure, and the connection line formed by the first metal sheet 41 and the second metal sheet 42 is perpendicular to the connection line formed by the third metal sheet 43 and the fourth metal sheet 44 .

Specifically, the first metal piece 41 and the second metal piece 42 work or stop working simultaneously, and the third metal piece 43 and the fourth metal piece 44 work or stop working simultaneously. Wherein, when the first metal sheet 41 and the second metal sheet 42 are in the working state, the third metal sheet 43 and the fourth metal sheet 44 can be in the non-working state; 43 and the fourth metal sheet 44 are in the working state, the first metal sheet 41 and the second metal sheet 42 can be in the non-working state; the first metal sheet 41, the second metal sheet 42, The third metal piece 43 and the fourth metal piece 44 can also be in the working state at the same time, and can also be in the non-working state at the same time.

Wherein, the first metal sheet 41 and the second metal sheet 42 form a first group of metal sheets using a differential feeding method, and the third metal sheet 43 and the fourth metal sheet 44 are formed using a differential feeding method The second group of metal sheets, the first group of metal sheets and the second group of metal sheets use orthogonal feeding, which can form a MIMO function to increase the data transmission rate, and can also form dual polarization to increase the wireless performance of the millimeter wave array antenna. Connectivity, reduce the chance of communication disconnection, improve communication effect and user experience. Wherein, the number of the metal sheets 4 is not limited to four.

Further, the first metal sheet 41 and the second metal sheet 42 are located on one of the diagonal straight lines of the first insulating medium 5;

The third metal sheet 43 and the fourth metal sheet 44 are located on another diagonal straight line of the first insulating medium 5 .

Specifically, the first metal sheet 41 and the second metal sheet 42 can be arranged symmetrically on one of the diagonal lines of the first insulating medium 5, and the third metal sheet 43 and the fourth metal sheet 44 It can be symmetrically arranged on the other diagonal of the first insulating medium 5, the first metal sheet 41 and the second metal sheet 42 are placed on one of the diagonals, and the third metal sheet 43 and the fourth metal sheet 44 are placed on another diagonal line, which can reduce the volume of the antenna unit.

Wherein, the first metal sheet 41 and the second metal sheet 42 need to be on the same straight line, not limited to the diagonal line of the first insulating medium 5; and, the third metal sheet 43 and the fourth The metal sheets 44 need to be on the same straight line, not limited to being on the diagonal of the first insulating medium 5 .

Further, the signal source connected to the first metal sheet 41 through the feeding probe 3 has the same amplitude as the signal source connected to the second metal sheet 42 through the feeding probe 3, and the phase difference is 180 The signal source connected to the third metal piece 43 through the feeding probe 3 has the same amplitude as the signal source connected to the fourth metal piece 44 through the feeding probe 3 , and the phase difference is 180°.

Specifically, since the first metal sheet 41 and the second metal sheet 42 in the antenna unit use differential feeding to form the first group of metal sheets, the third metal sheet 43 and the fourth metal sheet The sheet 44 uses a differential feeding method to form a second group of metal sheets, that is, the first metal sheet 41 is connected to the signal source through the feeding probe 3, and the second metal sheet 42 is connected to the signal source through the feeding probe 3. 3 connected signal sources have the same amplitude and a phase difference of 180°; the signal source connected to the third metal sheet 43 through the feeding probe 3 is connected to the fourth metal sheet 44 through the feeding probe 3 The amplitudes of the signal sources are the same, but the phase difference is 180.

As shown in FIG. 4 , an embodiment of the present invention also provides an electronic device, the electronic device is a first electronic device, includes a metal frame, and further includes the antenna unit as described in any of the above embodiments;

Wherein, at least one accommodating slot is arranged on the metal frame, and at least one antenna unit is arranged in each accommodating slot.

Wherein, one or more antenna units may be arranged in the accommodating groove, and in the case that a plurality of the antenna units are arranged in the accommodating groove, any two antenna units may pass through the The metal plate 2 is isolated. The shape of the accommodating groove can be circular, square, etc., and the metal plate 2 of the antenna unit is circular, square, etc.

Specifically, the metal frame can be a metal frame or a metal shell, etc. In the case where the metal frame is a metal frame, the metal frame can include a first metal frame 11, a second metal frame 12, a third metal frame 13 and the fourth metal frame 14, the first metal frame 11, the second metal frame 12, the third metal frame 13 and the fourth metal frame 14 can be connected to form a metal frame, the first The metal frame 11 , the second metal frame 12 , the third metal frame 13 and the fourth metal frame 14 may not be connected end to end to form a metal frame. The number of the accommodating tanks is set by actual needs, and is not limited here.

In the above embodiments of the present invention, by setting the millimeter-wave antenna unit on the metal frame, the millimeter-wave antenna unit can form a millimeter-wave array antenna, which not only does not affect the space of other non-millimeter-wave antennas, but also saves the space of the whole machine , at the same time, it can avoid the influence of the metal plate 2 on the performance of the millimeter-wave antenna, and improve the user's wireless experience in multiple millimeter-wave frequency bands when roaming around the world. Using the metal frame itself as the carrier of the millimeter-wave array antenna can effectively eliminate the metal plate 2 Impact on mmWave antennas.

Wherein, when the antenna unit is a millimeter-wave antenna unit, there may be one or more millimeter-wave antenna units, and one or more millimeter-wave antenna units form a millimeter-wave array antenna, and the millimeter-wave array There can be one or more antennas. There is a preset distance between any two millimeter-wave antenna units, and the preset distance 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.

Further, when there are at least two accommodating grooves, any two accommodating grooves are spaced apart on the metal frame.

Specifically, the spacing between any two of the accommodating slots, that is, the spacing between any two millimeter-wave antenna units can improve the isolation between the millimeter-wave antenna units; and, the millimeter-wave antenna units can A millimeter-wave array antenna is formed, and there may be one or more millimeter-wave array antennas. Wherein, the separation distance between any two millimeter-wave antenna units may 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.

Further, the feeding probe 3 may be connected to a signal source in the electronic device, and the first metal sheet 41 is connected to the second metal sheet 42 through the signal source connected to the feeding probe 3 The amplitude of the signal source connected through the feeding probe 3 is the same, and the phase difference is 180°; The signal sources connected to the feeding probe 3 have the same amplitude and a phase difference of 180°.

Further, as shown in Figure 4, the electronic device may also include:

A floor 9 arranged inside the metal frame and connected to the metal frame.

Specifically, the floor 9 may be a printed circuit board, a metal middle shell, a screen, etc., and the floor 9 may be connected to the metal frame.

Further, as shown in FIG. 4, when the antenna unit is a millimeter wave antenna unit, the metal frame of the electronic device is a radiator of a non-millimeter wave antenna 10, and the millimeter wave antenna unit is arranged on the radiator superior.

Specifically, the non-millimeter wave antenna 10 is a communication antenna such as 2G/3G/4G, and the millimeter wave array antenna is arranged on the radiator of the non-millimeter wave antenna 10, which can not only save the internal space of the whole machine, It can also improve the user's wireless experience in multiple millimeter wave frequency bands when roaming around the world. Wherein, the millimeter-wave antenna can be compatible in a non-millimeter-wave antenna in which a metal frame or a metal shell is used as an antenna.

Wherein, the radiator of the non-millimeter wave antenna 10 may be composed of the third metal frame 13, part of the second metal frame 12 and part of the fourth metal frame 14; or the radiator of the non-millimeter wave antenna 10 may be composed of The third metal frame 13 is composed. The radiator of the non-millimeter wave antenna 10 can also be arranged on the first metal frame 11 , or on the second metal frame 12 and so on. The composition and position of the radiator of the non-millimeter wave antenna 10 are not limited.

An embodiment of the present invention also provides an electronic device, the electronic device is a second electronic device, and includes the antenna unit as described in any one of the above embodiments;

Wherein, the metal plate 2 is at least a part of the metal frame or the metal shell of the electronic device (that is, the metal plate 2 can be the metal frame of the electronic device, or can be one of the metal frames of the electronic device. part).

Specifically, the floor 9 may be connected to the bottom of the metal plate 2, and the floor 9 may be a printed circuit board, a metal middle shell, a screen, and the like. The radiator of the non-millimeter wave antenna 10 is at least a part of the metal plate 2 . The structure of the second electronic device is similar to that of the above-mentioned first electronic device, and can achieve the same technical effect. To avoid repetition, details are not repeated here.

Specifically, Figure 5 is a reflection coefficient map of one of the millimeter-wave antenna units. The abscissa is the frequency band, and the ordinate is the reflection coefficient. Calculated at -6dB, it can cover the 24.25GHz-29.5GHz and 37GHz-40GHz frequency bands. The millimeter-wave antenna Basically, it can cover 5G millimeter wave frequency bands such as n257, n258, n260, n261, etc., thus improving the user's mobile roaming experience. Figure 6 is the radiation pattern of 28GHz, and S1 is the radiation range. Figure 7 is the radiation pattern of 39GHz, and S2 is the radiation range. Due to the use of symmetrical differential feeding (that is, the first metal sheet 41 and the second metal sheet 42 form a group of vertically polarized feeding, the third metal sheet 43 and the fourth metal sheet 44 Form a group of horizontally polarized feeds, and the first metal sheet 41 and the second metal sheet 42 form a straight line orthogonal to the third metal sheet 43 and the fourth metal sheet 44), which can The millimeter-wave antenna unit forms symmetrical radiation along the vertical direction, which is convenient for forming a millimeter-wave array antenna and performing beamforming on the millimeter-wave array antenna.

In the above embodiments of the present invention, by arranging the millimeter-wave antenna unit on the metal frame, the millimeter-wave antenna unit forms a millimeter-wave array antenna, which not only does not affect the space of other non-millimeter-wave antennas, but also saves the space of the whole machine. At the same time, it can avoid the impact of the metal plate 2 on the performance of the millimeter-wave antenna, and improve the wireless experience of the user in multiple millimeter-wave frequency bands when roaming around the world; moreover, the millimeter-wave antenna unit uses an orthogonal differential feeding method to form a MIMO function to Improving the data transmission rate can also form dual polarization, increase the wireless connection capability of the millimeter wave array antenna, reduce the probability of communication disconnection, improve communication effect and user experience; and, it can also support CA to further increase the transmission rate.

For the convenience of description, the above-mentioned embodiment is to describe the mobile phone as a specific example of the electronic device of the present invention. Those skilled in the art can understand that, in addition to the mobile phone as an electronic device, it is also applicable to other electronic devices, such as tablet computers, electronic books, etc. Reader, MP3 (Moving Picture Experts Group Audio Layer III) player, MP4 (Moving Picture Experts Group Audio Layer IV) player, laptop computer , vehicle-mounted computers, desktop computers, set-top boxes, smart TVs, wearable devices, etc. are all within the protection scope of the embodiments of the present invention.

The foregoing embodiments of the present invention can be applied to wireless intercity networks (WMAN, Wireless Metropolitan AreaNetworks), wireless wide area networks (WWAN, Wireless Wide Area Network), wireless area networks (WLAN, Wireless Local Area Network), wireless personal networks Road (WPAN, Wireless Personal AreaNetwork), MIMO, radio frequency identification (RFID, Radio Frequency IDentification), and even near field communication (NFC, Near Field Communication), wireless charging (WPC, Wireless Power Consortium), or frequency modulation (FM, Frequency Modulation) and other wireless communication design and application; and, it can be applied to regulatory testing and actual design and application of human safety, health, and compatibility with worn electronic devices (such as hearing aids or heart rate regulators, etc.).

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

Having described preferred embodiments of embodiments of the present invention, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, the appended claims are intended to be construed to cover the preferred embodiment and all changes and modifications which fall within the scope of the embodiments of the present invention.

Finally, it should also be noted that in this text, relational terms such as first and second etc. are only used to distinguish one entity or operation from another, and do not necessarily require or imply that these entities or operations, any such actual relationship or order exists. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or terminal equipment comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements identified, or also include elements inherent in such a process, method, article, or end-equipment. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or terminal device comprising said element.

What has been described above is a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications can also be made without departing from the principles described in the present invention. within the scope of protection of the invention.

Claims (13)

1. An antenna unit, comprising:

the metal plate is provided with a groove;

a feed probe;

the feed probe penetrates through the groove bottom of the groove and is connected with the metal sheet through a feed line, wherein the feed line is a bent feed line.

2. The antenna element of claim 1, wherein said feed line comprises a first feed line portion and a second feed line portion connected to said first feed line portion, said first feed line portion and said second feed line portion forming an angle.

3. The antenna unit of claim 1, wherein a first dielectric medium is disposed in the recess, and wherein the metal sheet is disposed in the first dielectric medium.

4. The antenna element of claim 1, wherein said metal sheet is a trapezoidal metal sheet.

5. The antenna unit of claim 3, further comprising:

and the second insulating medium is arranged between the first insulating medium and the groove bottom of the groove, and a part of the feed probe is positioned in the second insulating medium.

6. An antenna element according to claim 5, wherein a portion of the feed line is disposed in the first dielectric medium and another portion is disposed in the second dielectric medium.

7. The antenna unit of claim 1, wherein the metal sheet comprises:

the first metal sheet and the second metal sheet are positioned on the same straight line, arranged oppositely and insulated from each other;

the third metal sheet and the fourth metal sheet are positioned on the same straight line, arranged oppositely and insulated from each other;

the first metal sheet and the second metal sheet form a group of vertically polarized feed structures, the third metal sheet and the fourth metal sheet form a group of horizontally polarized feed structures, and a connecting line formed by the first metal sheet and the second metal sheet is orthogonal to a connecting line formed by the third metal sheet and the fourth metal sheet.

8. The antenna element according to any of claims 1 to 7, characterized in that said antenna element is a millimeter wave antenna element.

9. An electronic device, which is a first electronic device, comprising a metal frame, characterized by further comprising the antenna unit according to any one of claims 1 to 8;

the metal frame is provided with at least one accommodating groove, and each accommodating groove is provided with at least one antenna unit.

10. The electronic device according to claim 9, wherein when there are at least two receiving slots, any two receiving slots are spaced apart from each other on the metal frame.

11. The electronic device of claim 9, further comprising:

and the floor is arranged on the inner side of the metal frame and is connected with the metal frame.

12. The electronic device according to claim 9, wherein when the antenna element is a millimeter wave antenna element, the metal frame of the electronic device is a radiator of a non-millimeter wave antenna, and the millimeter wave antenna element is provided on the radiator.

13. An electronic device, which is a second electronic device, comprising an antenna unit according to any one of claims 1 to 8;

wherein the metal plate is at least a part of a metal frame of the electronic device.

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