CN111916895A - Dual-polarization 5G millimeter wave antenna module and mobile device with metal frame - Google Patents
Dual-polarization 5G millimeter wave antenna module and mobile device with metal frame Download PDFInfo
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- CN111916895A CN111916895A CN202010668017.XA CN202010668017A CN111916895A CN 111916895 A CN111916895 A CN 111916895A CN 202010668017 A CN202010668017 A CN 202010668017A CN 111916895 A CN111916895 A CN 111916895A
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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
- H01Q1/36—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
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
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Abstract
The invention discloses a dual-polarized 5G millimeter wave antenna module and mobile equipment with a metal frame, wherein the dual-polarized 5G millimeter wave antenna module comprises a plurality of antenna units, each antenna unit comprises a substrate, a first metal layer and a second metal layer are arranged on the substrate, each first metal layer comprises a radiating sheet, a first notch and a second notch are arranged on the two metal layers, the first notch is perpendicular to the second notch, a first feed branch is arranged in the first notch, a second feed branch is arranged in the second notch, and a part of the first notch and a part of the second notch are respectively positioned under the radiating sheet. The feed structure is simple, the dual-polarization effect is achieved, and the EIRP is greatly improved; the PCB can be used as a substrate, so that the production and assembly are easy, and the subsequent integration with a chip is convenient; the coverage frequency range is wide; the antenna can be designed jointly with a metal shell of the mobile device, and the influence of the radiation performance of the millimeter wave antenna under a metal frame of the mobile device is solved.
Description
Technical Field
The invention relates to the technical field of antennas, in particular to a dual-polarized 5G millimeter wave antenna module and mobile equipment with a metal frame.
Background
5G is the focus of research and development in the global industry, and it has become common knowledge in the industry to develop 5G technology and establish the 5G standard. The international telecommunications union ITU identified three major application scenarios for 5G at ITU-RWP5D meeting No. 22 held 6 months 2015: enhanced mobile broadband, large-scale machine communication, high-reliability and low-delay communication. The 3 application scenes correspond to different key indexes respectively, wherein the peak speed of a user in the enhanced mobile bandwidth scene is 20Gbps, and the lowest user experience rate is 100 Mbps. The unique high carrier frequency and large bandwidth characteristics of millimeter waves are the main means for realizing 5G ultrahigh data transmission rate. In addition, the space reserved for the 5G antenna in future mobile phones is small, and the number of selectable positions is small, so that a miniaturized antenna module is designed.
The metal frame structure is a mainstream scheme in the structural design of the mobile phone, and can provide better protection, aesthetic degree, thermal diffusion and user experience, but due to the shielding effect of metal on electromagnetic waves, the radiation performance of the upper antenna and the lower antenna can be seriously influenced, and the gain of the antenna is reduced, so that the combined design of the mobile equipment (such as a mobile phone) and the antenna module is of great significance under the condition that the mobile equipment is a metal frame.
At present, some 5G millimeter wave antenna designs under a metal frame are disclosed in the existing patents or patent applications, but the existing patents or patent applications have many defects, such as Chinese patent application with the publication number of CN 109193133A and Chinese patent application with the publication number of CN109193134A, and the technical scheme does not consider radio frequency front end integration; for example, the chinese utility model patent with publication number CN 209544619U and the chinese invention patent application with publication number CN 109066079 a have complicated feed structure and large difficulty in actual production and assembly; for example, the technical scheme of the invention is a single polarization module, and the technical scheme of the invention is that the double polarization module has obvious advantages in calculating the EIRP in the TS 38.101-25G terminal radio frequency technical specification of the current 3GPP, such as the chinese utility model with the publication number CN207517869U, the chinese utility model with the publication number CN207781866U, the chinese utility model with the publication number CN208460981U, and the chinese invention patent with the publication number CN 108288757A. According to the 3GPP TS 38.101-25G terminal rf specification and TR38.817 terminal rf technical report, it is known that a 5GmmWave antenna needs to cover N257(26.5-29.5GHz), N258(24.25-27.25GHz), N260(37-40GHz) and N261(27.5-28.35GHz), while a high-pass antenna module in the market only covers N257 bands (26.5-29.5 GHz).
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the dual-polarized 5G millimeter wave antenna module is simple in structure and wide in coverage frequency range, and the mobile device with the metal frame is provided.
In order to solve the technical problems, the invention adopts the technical scheme that: dual polarization 5G millimeter wave antenna module, including a plurality of antenna element, antenna element includes the base member, be equipped with first metal layer and second metal layer on the base member, first metal layer includes the radiation piece, be equipped with first fluting and second fluting on the second metal layer, first fluting is perpendicular with the second fluting, is equipped with first feed minor matters in the first fluting, is equipped with the second feed minor matters in the second fluting, and first fluting partly and the slotted partly of second are located respectively under the radiation piece.
In order to solve the technical problems, the invention also adopts the following technical scheme: the mobile equipment with the metal frame comprises the dual-polarized 5G millimeter wave antenna module.
The invention has the beneficial effects that:
(1) the dual-microstrip coupling feed source aperture antenna is adopted, the feed structure is simple, and meanwhile, the dual-polarization antenna has the advantage of dual polarization, and compared with a single-polarization antenna, the EIRP is greatly improved;
(2) the PCB can be used as a substrate, so that the PCB is easy to produce and assemble, convenient to integrate with a chip subsequently, small in size, low in section and easy to place in small-sized mobile equipment (such as a mobile phone);
(3) the dual-polarized 5G millimeter wave antenna module can effectively cover N257, N258, N260 and N261 frequency bands, and the coverage frequency band is wide;
(4) the dual-polarization 5G millimeter wave antenna module can be designed in combination with a metal shell of the mobile device (namely, the metal shell of the mobile device is used as a first metal layer), the influence of the radiation performance of the millimeter wave antenna under a metal frame of the mobile device is perfectly solved, and the performance of the antenna is effectively ensured.
Drawings
Fig. 1 is a schematic structural diagram of an overall structure of a dual-polarized 5G millimeter wave antenna module according to a first embodiment of the present invention;
fig. 2 is a top view of the dual-polarized 5G millimeter wave antenna module according to the first embodiment of the present invention (after hiding the substrate and the partition wall);
fig. 3 is a perspective view of a dual-polarized 5G millimeter wave antenna module according to a first embodiment of the present invention (after hiding the substrate and the partition wall);
fig. 4 is a top view of a second metal layer in the dual-polarized 5G millimeter wave antenna module according to the first embodiment of the present invention;
fig. 5 is a top view of the dual-polarized 5G millimeter wave antenna module according to the first embodiment of the present invention (after hiding the substrate, the isolation wall, and the first, second, and third metal layers);
fig. 6 is a front view (after the substrate is hidden) of the dual-polarized 5G millimeter wave antenna module according to the first embodiment of the present invention;
FIG. 7 is an enlarged view of detail A in FIG. 6;
fig. 8 is a simulation curve diagram of S parameters of antenna units in the dual-polarized 5G millimeter wave antenna module according to the first embodiment of the present invention in the first polarization direction;
fig. 9 is a simulation curve diagram of S parameters of the antenna elements in the dual-polarized 5G millimeter wave antenna module according to the first embodiment of the present invention in the second polarization direction.
Description of reference numerals:
1. a substrate;
2. a first metal layer; 21. a radiation sheet; 22. a frame body;
3. a second metal layer; 31. a first slot; 32. a second slot; 33. a first feed stub; 34. a second feed branch; 35. a first slit; 36. a second slit;
4. a third metal layer;
5. a matching network;
6. a fourth metal layer;
7. a partition wall; 71. a first metalized hole;
8. a second metallized hole;
9. a chip assembly.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 9, the dual-polarized 5G millimeter wave antenna module includes a plurality of antenna units, each of the antenna units includes a substrate 1, a first metal layer 2 and a second metal layer 3 are disposed on the substrate 1, the first metal layer 2 includes a radiation sheet 21, a first slot 31 and a second slot 32 are disposed on the second metal layer, the first slot 31 is perpendicular to the second slot 32, a first feeding branch 33 is disposed in the first slot 31, a second feeding branch 34 is disposed in the second slot 32, and a portion of the first slot 31 and a portion of the second slot 32 are respectively located right below the radiation sheet 21.
From the above description, the beneficial effects of the present invention are:
(1) the dual-microstrip coupling feed source aperture antenna is adopted, the feed structure is simple, and meanwhile, the dual-polarization antenna has the advantage of dual polarization, and compared with a single-polarization antenna, the EIRP is greatly improved;
(2) the PCB can be used as the substrate 1, so that the production and assembly are easy, the subsequent integration with a chip is convenient, the size is small, the section is low, and the PCB can be easily placed in small-sized mobile equipment (such as a mobile phone);
(3) the dual-polarized 5G millimeter wave antenna module can effectively cover N257, N258, N260 and N261 frequency bands, and the coverage frequency band is wide;
(4) the dual-polarization 5G millimeter wave antenna module can be designed in combination with the metal shell of the mobile device (namely, the metal shell of the mobile device is used as the first metal layer 2), the influence of the radiation performance of the millimeter wave antenna under the metal frame of the mobile device is perfectly solved, and the performance of the antenna is effectively ensured.
Further, a part of the first feeding branch 33 is located right below the radiating plate 21, so that a part of the first slot 31 located right below the radiating plate 21 forms a U-shaped first gap 35.
Further, a part of the second feeding branch 34 is located right below the radiating plate 21, so that a part of the second slot 32 located right below the radiating plate 21 forms a U-shaped second slot 36.
As can be seen from the above description, the two polarized signals are coupled to the first and second slots through the first and second feeding branches, and then coupled to the radiating plate 21 through the first and second slots, so as to implement antenna radiation.
Further, a third metal layer 4 and a matching network 5 are further disposed on the substrate 1, the third metal layer 4 is located on one side of the second metal layer 3 away from the first metal layer 2, the matching network 5 is located on one side of the third metal layer 4 away from the second metal layer 3, and the first feeding branch 33 and the second feeding branch 34 are respectively conducted with the matching network 5.
From the above description, the specific structure of the matching network 5 can be designed, the bandwidth of the dual-polarized 5G millimeter wave antenna module is increased, and the performance of the dual-polarized 5G millimeter wave antenna module is improved.
Further, a fourth metal layer 6 is further disposed on the base 1, the matching network 5 is located between the third metal layer 4 and the fourth metal layer 6, and a partition wall 7 disposed around the antenna unit is further disposed on the base 1.
As can be seen from the above description, the arrangement of the isolation wall 7 can isolate the mutual interference between the antenna units and the interference of external signals to the antenna units, and is favorable for ensuring the performance of the dual-polarized 5G millimeter wave antenna module.
Further, the partition wall 7 includes a plurality of first metallized holes 71 connecting the first metal layer 2 and the fourth metal layer 6.
As can be seen from the above description, the partition wall 7 is simple in construction and easy to manufacture.
Further, a plurality of second metalized holes 8 are further formed between the third metal layer 4 and the fourth metal layer 6, the second metalized holes 8 are arranged around the matching network 5, and the second metalized holes 8 communicate with the third metal layer 4 and the fourth metal layer 6.
As can be seen from the above description, the provision of the second metallized hole 8 can reduce signal leakage and interference of the matching network 5.
Further, the chip component 9 is further included, and the chip component 9 is conducted with the matching network 5.
As can be seen from the above description, the rf chip includes elements such as a phase shifter and an amplifier, wherein the phase shifter is capable of providing a phase difference between antenna elements to implement beam scanning, and the amplifier is used for compensating for loss of the phase shifter.
Further, the radiation sheet 21 is rectangular, the first slot 31 is perpendicular to the first side of the radiation sheet 21, the second slot 32 is perpendicular to the second side of the radiation sheet 21, and the first side is adjacent to the second side.
As can be seen from the above description, the radiation plate 21 has a simple structure and is easy to process, and the radiation plate 21 can also be fixed on the base 1 in the form of a patch.
The mobile equipment with the metal frame comprises the dual-polarized 5G millimeter wave antenna module.
From the above description, it can be seen that the mobile device with the metal frame has at least all the benefits of the dual-polarized 5G millimeter wave antenna module.
Example one
Referring to fig. 1 to 9, a first embodiment of the present invention is: mobile equipment with metal crate, for example cell-phone, panel computer, intelligent wrist-watch etc. it includes the metal backshell, be equipped with dual polarization 5G millimeter wave antenna module on the metal backshell.
Referring to fig. 1 to 5, the dual-polarized 5G millimeter wave antenna module includes a plurality of antenna units, each of the antenna units includes a substrate 1, a first metal layer 2 and a second metal layer 3 are disposed on the substrate 1, the first metal layer 2 includes a radiation plate 21, a first slot 31 and a second slot 32 are disposed on the second metal layer, the first slot 31 is perpendicular to the second slot 32, a first feeding branch 33 is disposed in the first slot 31, a second feeding branch 34 is disposed in the second slot 32, a portion of the first slot 31 and a portion of the second slot 32 are respectively disposed right below the radiation plate 21, a portion of the first feeding branch 33 is disposed right below the radiation plate 21 so that a portion of the first slot 31 right below the radiation plate 21 forms a U-shaped first slot 35, and a portion of the second feeding branch 34 is disposed right below the radiation plate 21 so that the second slot 32 is disposed right below the radiation plate 21 A second slit 36 in the shape of a U is formed in the portion immediately below. In this embodiment, the number of the antenna units is four, and the four antenna units are arranged in a row. Optionally, the substrate 1 is a multilayer PCB; the metal back shell is the first metal layer 2.
Referring to fig. 1 and fig. 5, further, a third metal layer 4, a matching network 5 and a fourth metal layer 6 are further disposed on the substrate 1, the third metal layer 4 is located on a side of the second metal layer 3 away from the first metal layer 2, the fourth metal layer 6 is located on a side of the third metal layer 4 away from the second metal layer 3, the matching network 5 is located between the third metal layer 4 and the fourth metal layer 6, and the first feeding branch 33 and the second feeding branch 34 are respectively conducted with the matching network 5.
Referring to fig. 1, fig. 6 and fig. 7, in order to improve the performance of the dual-polarized 5G millimeter wave antenna module, a partition wall 7 disposed around the antenna unit is further disposed on the base 1. Specifically, the partition wall 7 includes a plurality of first metallized holes 71 communicating the first metal layer 2 and the fourth metal layer 6. In this embodiment, the isolation walls 7 are respectively disposed around the four antenna units. Specifically, the first metal layer 2 further includes a frame 22 disposed around the radiation sheet 21, and the first metalized hole 71 is connected to the frame 22.
As shown in fig. 5, a plurality of second metalized holes 8 are further provided between the third metal layer 4 and the fourth metal layer 6, the second metalized holes 8 are disposed around the matching network 5, and the second metalized holes 8 communicate the third metal layer 4 and the fourth metal layer 6. The matching network 5 comprises a matching wire, the second metalized hole 8 is arranged around the matching wire, and the matching wire is conducted with the first and second feed branches through the metalized hole. The bandwidth and the impedance of the dual-polarized 5G millimeter wave antenna module can be adjusted by adjusting the parameters such as the width and the bending times of the matching wiring.
As shown in fig. 1, the chip module 9 is further included, the chip module 9 is in conduction with the matching network 5, and optionally, the chip module 9 is located on a side of the fourth metal layer 6 away from the third metal layer 4. The chip assembly 9 comprises a radio frequency chip, a digital integrated circuit chip and a power chip, wherein the radio frequency chip comprises elements such as a phase shifter and an amplifier, the phase shifter is used for providing phase difference between antenna units to achieve beam scanning capacity, the amplifier is used for compensating loss of the phase shifter, the digital integrated circuit chip is controlled by the radio frequency chip, and the power chip is used for providing power for the radio frequency chip.
In this embodiment, the radiation sheet 21 is rectangular, the first slot 31 is perpendicular to the first side of the radiation sheet 21, the second slot 32 is perpendicular to the second side of the radiation sheet 21, and the first side is adjacent to the second side. In other embodiments, the radiation sheet 21 may have other shapes, such as a circular shape.
Fig. 8 is a simulation graph of S-parameters of antenna elements in the dual-polarized 5G millimeter wave antenna module in the first polarization direction, and it can be known from fig. 8 that the operating frequency range of the first polarization of the antenna elements in the dual-polarized 5G millimeter wave antenna module is 22-41 GHz; fig. 9 is a simulation graph of S-parameters of the antenna units in the dual-polarization 5G millimeter wave antenna module in the second polarization direction, and it can be known from fig. 9 that the operating frequency band of the second polarization of the antenna units in the dual-polarization 5G millimeter wave antenna module is dual-frequency, and the operating frequency ranges are specifically 24-32GHz and 37-40 GHz. Therefore, the two polarization working frequency bands of the dual-polarization 5G millimeter wave antenna module effectively cover N257, N258, N260 and N261.
In summary, the dual-polarized 5G millimeter wave antenna module and the mobile device with the metal frame provided by the invention adopt the dual-microstrip coupling feed source aperture antenna, have a simple feed structure, and have the dual-polarized advantage, and compared with a single-polarized antenna, the EIRP is greatly improved; the PCB is adopted as the substrate, so that the production and assembly are easy, the subsequent integration with a chip is convenient, the size is small, the section is low, and the PCB can be easily placed in small-sized mobile equipment; the dual-polarized 5G millimeter wave antenna module can effectively cover N257, N258, N260 and N261 frequency bands, and the coverage frequency band is wide; the antenna can be designed in combination with a metal shell of the mobile device, the influence of the radiation performance of the millimeter wave antenna under a metal frame of the mobile device is perfectly solved, and the performance of the antenna is effectively guaranteed.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (10)
1. Dual polarization 5G millimeter wave antenna module, including a plurality of antenna element, antenna element includes the base member, its characterized in that: the substrate is provided with a first metal layer and a second metal layer, the first metal layer comprises a radiation sheet, the second metal layer is provided with a first slot and a second slot, the first slot is perpendicular to the second slot, a first feed branch is arranged in the first slot, a second feed branch is arranged in the second slot, and a part of the first slot and a part of the second slot are respectively positioned under the radiation sheet.
2. The dual-polarized 5G millimeter wave antenna module of claim 1, wherein: and one part of the first feed branch is positioned right below the radiating sheet so that the part of the first open slot positioned right below the radiating sheet forms a U-shaped first gap.
3. The dual-polarized 5G millimeter wave antenna module of claim 1, wherein: and one part of the second feed branch is positioned right below the radiating sheet so that the part of the second open slot positioned right below the radiating sheet forms a U-shaped second gap.
4. The dual-polarized 5G millimeter wave antenna module of claim 1, wherein: the substrate is further provided with a third metal layer and a matching network, the third metal layer is located on one side, away from the first metal layer, of the second metal layer, the matching network is located on one side, away from the second metal layer, of the third metal layer, and the first feed branch and the second feed branch are respectively communicated with the matching network.
5. The dual-polarized 5G millimeter wave antenna module of claim 4, wherein: the base body is further provided with a fourth metal layer, the matching network is located between the third metal layer and the fourth metal layer, and the base body is further provided with a separation wall arranged around the antenna unit.
6. The dual polarized 5G millimeter wave antenna module of claim 5, wherein: the isolation wall comprises a plurality of first metalized holes which are communicated with the first metal layer and the fourth metal layer.
7. The dual polarized 5G millimeter wave antenna module of claim 5, wherein: a plurality of second metallization holes are further formed between the third metal layer and the fourth metal layer, the second metallization holes are arranged around the matching network, and the second metallization holes are communicated with the third metal layer and the fourth metal layer.
8. The dual-polarized 5G millimeter wave antenna module of claim 4, wherein: the chip component is conducted with the matching network.
9. The dual-polarized 5G millimeter wave antenna module of claim 1, wherein: the radiation piece is the rectangle, first fluting perpendicular to the first side setting of radiation piece, the second fluting perpendicular to the second side setting of radiation piece, first side is adjacent with the second side.
10. Mobile device with a metal frame, characterized in that: comprising the dual polarized 5G millimeter wave antenna module of any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010668017.XA CN111916895A (en) | 2020-07-13 | 2020-07-13 | Dual-polarization 5G millimeter wave antenna module and mobile device with metal frame |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010668017.XA CN111916895A (en) | 2020-07-13 | 2020-07-13 | Dual-polarization 5G millimeter wave antenna module and mobile device with metal frame |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114784485A (en) * | 2022-04-19 | 2022-07-22 | 南京濠暻通讯科技有限公司 | Millimeter wave dual-polarization packaging antenna applied to 5G broadband and array antenna |
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2020
- 2020-07-13 CN CN202010668017.XA patent/CN111916895A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114784485A (en) * | 2022-04-19 | 2022-07-22 | 南京濠暻通讯科技有限公司 | Millimeter wave dual-polarization packaging antenna applied to 5G broadband and array antenna |
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