CN113224517B - Integrated 5G millimeter wave dual-frequency dielectric resonant antenna module and electronic equipment - Google Patents
Integrated 5G millimeter wave dual-frequency dielectric resonant antenna module and electronic equipment Download PDFInfo
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- CN113224517B CN113224517B CN202110326237.9A CN202110326237A CN113224517B CN 113224517 B CN113224517 B CN 113224517B CN 202110326237 A CN202110326237 A CN 202110326237A CN 113224517 B CN113224517 B CN 113224517B
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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
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
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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
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses an integrated 5G millimeter wave dual-frequency dielectric resonant antenna module and electronic equipment, wherein the antenna module comprises a dielectric substrate and at least one antenna unit, the dielectric substrate comprises a first metal layer, and feed gaps which are in one-to-one correspondence with the at least one antenna unit are arranged on the first metal layer; the antenna unit comprises a dielectric resonator which is arranged on the first metal layer and covers the feed gap; the dielectric resonators are trapezoid, and the dielectric resonators in each antenna unit are connected in sequence and integrally formed. The invention can simplify the installation process and realize single dual-frequency.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to an integrated 5G millimeter wave dual-frequency dielectric resonant antenna module and electronic equipment.
Background
According to 3GPP TS38.101-2 5G terminal radio frequency specification and TR38.817 terminal radio frequency technical report, the 5 GmmmWave frequency band includes n257 (26.5-29.5 GHz), n258 (24.25-27.25 GHz), n260 (37-40 GHz), n261 (27.5-28.35 GHz) and newly added n259 (39.5-43 GHz). Obviously, in 5G millimeter wave mobile terminal communication, a plurality of groups of antennas can be used for realizing the coverage of the frequency bands, but the space of the terminal is necessarily reduced, and then the single antenna is used for realizing the characteristics of double frequency and even multiple frequencies, so that the structure and design flow of the integrated antenna are simplified.
In general, multi-frequency microstrip patch antennas are preferred by most designers because of their simple structure, clear principle, acceptable performance, and the like. However, the disadvantages of the complex dielectric substrate lamination structure, non-integrated dual-frequency implementation mode and the like are required, and the method provides challenges for the application of the current 5G millimeter wave dual-frequency antenna.
The millimeter wave antenna of the 5G terminal is generally designed to be a 1×4 unit, so that 4 discrete dielectric resonators are needed during installation, and 4 times are needed during bonding and fixing, and the antenna performance simulation and actual errors caused by the design mode are large.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the integrated 5G millimeter wave dual-frequency dielectric resonant antenna module and the electronic equipment can simplify the installation process and realize single dual-frequency.
In order to solve the technical problems, the invention adopts the following technical scheme: an integrated 5G millimeter wave dual-frequency dielectric resonant antenna module comprises a dielectric substrate and at least one antenna unit, wherein the dielectric substrate comprises a first metal layer, and feed gaps which are in one-to-one correspondence with the at least one antenna unit are arranged on the first metal layer; the antenna unit comprises a dielectric resonator which is arranged on the first metal layer and covers the feed gap; the dielectric resonators are trapezoid, and the dielectric resonators in each antenna unit are connected in sequence and integrally formed.
The invention also provides electronic equipment, which comprises the integrated 5G millimeter wave dual-frequency dielectric resonant antenna module.
The invention has the beneficial effects that: the dielectric resonators in the antenna units are integrally arranged, so that the installation of multiple units can be realized only by once installation during installation, uncertain factors during installation are reduced, and mass production is convenient; by designing the shape of the dielectric resonator to be trapezoidal, 28GHz and 39GHz bands in 5G millimeter waves can be covered. The invention can realize single dual-frequency, reduce the design complexity, greatly improve the overall radiation efficiency of the antenna and reduce the production cost of the antenna.
Drawings
Fig. 1 is a schematic structural diagram of an integrated 5G millimeter wave dual-frequency dielectric resonator antenna module according to a first embodiment of the present invention;
fig. 2 is a schematic top view of an antenna module according to a first embodiment of the invention;
fig. 3 is a schematic partial side view of an antenna module according to a first embodiment of the invention;
fig. 4 is a schematic diagram of a feeder structure of four antenna units according to the first embodiment of the present invention (after the dielectric substrate is hidden);
FIG. 5 is a schematic top view of a dielectric substrate (after hiding the second feeder and the isolation wall) according to the first embodiment of the present invention;
FIG. 6 is a perspective view of a dielectric substrate (after hiding a first metal layer) according to an embodiment of the present invention;
fig. 7 is a schematic diagram of S parameter of an antenna module according to a first embodiment of the invention;
fig. 8 is a 3D directional diagram of an antenna module 28GHz according to an embodiment of the invention;
fig. 9 is a 3D directional diagram of an antenna module 39GHz according to an embodiment of the invention.
Description of the reference numerals:
1. a dielectric substrate; 2. a dielectric resonator; 3. a feeder line; 4. a radio frequency chip;
11. a first metal layer; 12. a second metal layer; 13. a third metal layer; 14. metallizing the holes;
111. a feed slot;
31. a first feeder line; 32. a second feeder line; 33. a first via; 34. and a second via.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1, an integrated 5G millimeter wave dual-frequency dielectric resonator antenna module includes a dielectric substrate and at least one antenna unit, where the dielectric substrate includes a first metal layer, and feed slots corresponding to the at least one antenna unit are disposed on the first metal layer; the antenna unit comprises a dielectric resonator which is arranged on the first metal layer and covers the feed gap; the dielectric resonators are trapezoid, and the dielectric resonators in each antenna unit are connected in sequence and integrally formed.
From the above description, the beneficial effects of the invention are as follows: the antenna can realize single dual-frequency, reduce design complexity, greatly improve overall radiation efficiency of the antenna, and reduce production cost of the antenna.
Further, the antenna element further includes a feed line including a first feed line; the first feeder line is arranged on one surface, far away from the dielectric resonator, of the first metal layer, and the first feeder line is coupled with the feed gap.
Further, one end of the first feeder line is provided with a T-shaped feed branch, and the projection of the feed branch on the first metal layer is intersected with the feed gap.
As is apparent from the above description, the radio frequency signal is fed through the feeder line, and then the dielectric resonator is coupled-fed through the feed slot.
Further, the dielectric substrate further comprises a second metal layer and a third metal layer, wherein the second metal layer is positioned on one side of the first metal layer far away from the dielectric resonator, and the third metal layer is positioned on one side of the second metal layer far away from the first metal layer; the feeder further includes a second feeder disposed between the second metal layer and the third metal layer; the second feeder is in conduction with the first feeder.
As can be seen from the above description, the second feeder line can be used as a matching trace of the matching network, and by designing the trace of the second feeder line, the bandwidth of the antenna module can be increased, and the performance of the antenna module can be improved.
Further, a partition wall is arranged between the second metal layer and the third metal layer, and the partition wall is arranged around the second feeder line.
Further, the partition wall includes a plurality of metallized holes that communicate the second metal layer and the third metal layer.
From the above description, it is clear that the partition wall can play a role of shielding and adjusting impedance, and by providing the partition wall, interference between the matching networks can be shielded.
Further, the dielectric resonator also comprises a radio frequency chip, wherein the radio frequency chip is arranged on one surface of the dielectric substrate far away from the dielectric resonator; the second feeder lines of the antenna units are respectively communicated with the radio frequency chip.
As can be seen from the above description, the rf chip is used to provide signals to the antenna.
Further, the number of the antenna units is four, and the four antenna units are linearly arranged.
Further, the feed slit is rectangular, H-shaped or circular.
The invention also provides electronic equipment, which comprises the integrated 5G millimeter wave dual-frequency dielectric resonant antenna module.
Example 1
Referring to fig. 1-9, a first embodiment of the present invention is as follows: an integrated 5G millimeter wave dual-frequency dielectric resonant antenna module can be applied to electronic equipment of a 5G millimeter wave communication system.
As shown in fig. 1, the antenna unit includes a dielectric substrate 1 and at least one antenna unit, and in this embodiment, four antenna units are taken as an example. As shown in fig. 2, the dielectric substrate 1 includes a first metal layer 11, and feed slots 111 corresponding to the antenna units one by one are disposed on the first metal layer 11; the feeding slot 111 may be rectangular, H-shaped, or circular, and a rectangular shape is taken as an example in this embodiment. The antenna unit comprises a dielectric resonator 2, wherein the dielectric resonator 2 is arranged on the first metal layer 11 and covers the feed gap 111; the dielectric resonators 2 in the respective antenna units are connected in order and integrally formed.
In this embodiment, the dielectric resonators are trapezoidal, and four trapezoidal dielectric resonators are linearly arranged and the upper bottom edge and the lower bottom edge are sequentially connected respectively. The 28GHz and 39GHz frequency bands in the 5G millimeter wave are excited by designing the shape of the dielectric resonator into a trapezoid and adjusting the upper and lower base edges.
In other embodiments, the dielectric resonator in a single antenna unit may also be stacked by two cylindrical dielectric resonators having different bottom surface areas, where the cylindrical dielectric resonator having a smaller bottom surface area is disposed below, i.e., closer to the dielectric substrate. The design can also realize 28GHz and 39GHz frequency bands.
Through the integrated dielectric resonator, the installation of multiple units can be realized only by once installation during installation, uncertain factors during installation are reduced, and mass production is convenient.
As shown in fig. 3, the dielectric substrate 1 further includes a second metal layer 12 and a third metal layer 13, where the first metal layer 11, the second metal layer 12 and the third metal layer 13 are sequentially stacked. That is, the second metal layer is located on a side of the first metal layer away from the dielectric resonator, and the third metal layer is located on a side of the second metal layer away from the first metal layer. Further, a dielectric layer is arranged between two adjacent metal layers.
As shown in fig. 4, the antenna element further includes a feeder line 3, the feeder line 3 including a first feeder line 31 and a second feeder line 32. Wherein, as shown in connection with fig. 3, the first power supply line 31 is disposed on a side of the first metal layer 11 away from the dielectric resonator 2 (i.e., disposed between the first metal layer 11 and the second metal layer 12); the second feeder line 32 is disposed between the second metal layer 12 and the third metal layer 13; one end of the second feeder line 32 is conducted with the first feeder line 31 through the first via hole 33, and the other end is conducted with the radio frequency chip through the second via hole 34.
The first feed line is coupled with the feed slot. Further, as shown in fig. 5, one end of the first power feeding line 31 is provided with a T-shaped power feeding branch, and a projection of the power feeding branch on the first metal layer 11 intersects with the power feeding slit 111. In particular, the projection of the vertical portion of the T-shaped feed branch onto the first metal layer perpendicularly intersects the feed slot, and the projection of the horizontal portion of the T-shaped feed branch onto the first metal layer is close to the feed slot.
The second feeder line can be used as a matching line of the matching network, and the bandwidth of the antenna module can be increased and the performance of the antenna module can be improved by designing the line of the second feeder line.
In this embodiment, the first metal layer and the first feeder line constitute a microstrip line; the second metal layer, the second power feed line, and the third metal layer constitute a strip line.
Further, as shown in fig. 3 and 6, a partition wall is disposed between the second metal layer 12 and the third metal layer 13, the partition wall is disposed around the second feeder line 32, and the partition wall includes a plurality of metallized holes 14, and the plurality of metallized holes 14 communicate with the second metal layer 12 and the third metal layer 13. That is, a plurality of metallized holes 14 are provided between the second metal layer 12 and the third metal layer 13, and the plurality of metallized holes 14 are provided around the second power feeding line 32. The isolation wall can play a role in shielding and adjusting impedance, and interference between the matching networks can be shielded by arranging the isolation wall.
As shown in fig. 1, the antenna further includes a radio frequency chip 4, where the radio frequency chip 4 is disposed on a surface of the dielectric substrate 1 away from the dielectric resonator 2, and the second power supply lines of the antenna units are respectively conducted with the radio frequency chip 4. Further, as shown in fig. 3, the rf chip 4 is disposed on the dielectric substrate through BGA solder balls, and the other ends of the second feed lines 32 of the four antenna units are respectively connected to the rf chip 4 through second vias 34.
Further, the radio frequency integrated circuit further comprises a digital circuit integrated chip (not shown in the figure) and a power chip (not shown in the figure), wherein the digital circuit integrated chip and the power chip are also arranged on one side of the dielectric substrate far away from the dielectric resonator, and the digital circuit integrated chip and the power chip are respectively and electrically connected with the radio frequency chip.
The radio frequency chip is used for providing signals for the antenna; and the RF chip comprises elements such as a phase shifter and an amplifier, wherein the phase shifter is used for providing phase difference between antenna units to realize the beam scanning capability, and the amplifier is used for compensating the loss of the phase shifter. The digital integrated circuit chip is used for controlling the amplitude and the phase of the signal of the radio frequency chip and is equivalent to a digital switch of a circuit such as an amplifier, a low-noise amplifier and the like in the radio frequency chip. And the power supply chip is used for providing power supply for the radio frequency chip.
Fig. 7 is a schematic diagram of S parameters of the antenna module according to the present embodiment, and it can be seen from the figure that the S parameters of the antenna module at the 28GHz band are all less than-10 dB, and the S parameters at the 39GHz band are all less than-15 dB, i.e. the antenna module covers both the 28GHz and 39GHz bands. Fig. 8-9 are 3D directional diagrams of the antenna modules 28GHz and 39GHz, respectively, according to the present embodiment, it can be seen from the figures that the beam is normal and not deformed, and the beam scanning capability is provided.
The embodiment can realize single dual-frequency, reduce the design complexity, greatly improve the overall radiation efficiency of the antenna, and reduce the production cost of the antenna.
In summary, according to the integrated 5G millimeter wave dual-frequency dielectric resonant antenna module and the electronic device provided by the invention, the dielectric resonators in the antenna units are integrally arranged, so that the installation of multiple units can be realized only by once installation during the installation, uncertain factors during the installation are reduced, and the mass production is convenient; by designing the shape of the dielectric resonator to be trapezoidal, 28GHz and 39GHz bands in 5G millimeter waves can be covered. The invention can realize single dual-frequency, reduce the design complexity, greatly improve the overall radiation efficiency of the antenna and reduce the production cost of the antenna.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent changes made by the specification and drawings of the present invention, or direct or indirect application in the relevant art, are included in the scope of the present invention.
Claims (10)
1. The integrated 5G millimeter wave dual-frequency dielectric resonant antenna module is characterized by comprising a dielectric substrate and at least one antenna unit, wherein the dielectric substrate comprises a first metal layer, and feed gaps which are in one-to-one correspondence with the at least one antenna unit are arranged on the first metal layer; the antenna unit comprises a dielectric resonator which is arranged on the first metal layer and covers the feed gap; the dielectric resonators are trapezoid, and the dielectric resonators in each antenna unit are connected in sequence and integrally formed.
2. The integrated 5G millimeter wave dual-frequency dielectric resonator antenna module of claim 1, wherein the antenna element further comprises a feed line comprising a first feed line; the first feeder line is arranged on one surface, far away from the dielectric resonator, of the first metal layer, and the first feeder line is coupled with the feed gap.
3. The integrated 5G millimeter wave dual-frequency dielectric resonator antenna module of claim 2, wherein one end of the first feeder line is provided with a T-shaped feed branch, and a projection of the feed branch on the first metal layer intersects the feed slot.
4. The integrated 5G millimeter wave dual-frequency dielectric resonator antenna module of claim 2, wherein the dielectric substrate further comprises a second metal layer and a third metal layer, the second metal layer being located on a side of the first metal layer away from the dielectric resonator, the third metal layer being located on a side of the second metal layer away from the first metal layer; the feeder further includes a second feeder disposed between the second metal layer and the third metal layer; the second feeder is in conduction with the first feeder.
5. The integrated 5G millimeter wave dual-frequency dielectric resonator antenna module of claim 4, wherein a separation wall is disposed between the second metal layer and the third metal layer, the separation wall being disposed around the second feed line.
6. The integrated 5G millimeter wave dual-frequency dielectric resonator antenna module of claim 5, wherein the isolation wall comprises a plurality of metallized holes that communicate the second metal layer and the third metal layer.
7. The integrated 5G millimeter wave dual-frequency dielectric resonator antenna module of claim 4, further comprising a radio frequency chip disposed on a side of the dielectric substrate remote from the dielectric resonator; the second feeder lines of the antenna units are respectively communicated with the radio frequency chip.
8. The integrated 5G millimeter wave dual-frequency dielectric resonator antenna module of claim 1, wherein the number of antenna elements is four, the four antenna elements being arranged linearly.
9. The integrated 5G millimeter wave dual-frequency dielectric resonator antenna module of any of claims 1-8, wherein the feed slot is rectangular, H-shaped or circular.
10. An electronic device comprising an integrated 5G millimeter wave dual-frequency dielectric resonator antenna module according to any one of claims 1-9.
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| CN113224517B true CN113224517B (en) | 2023-05-02 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102130377A (en) * | 2011-01-26 | 2011-07-20 | 浙江大学 | Three-frequency medium resonant antenna with function of coaxial feed |
| CN103843198A (en) * | 2011-07-29 | 2014-06-04 | 萨斯喀彻温大学 | Polymer-based resonator antennas |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2377556B (en) * | 2001-07-11 | 2004-09-15 | Antenova Ltd | Dual band dielectric resonator antenna |
| CN104662737B (en) * | 2012-09-21 | 2019-01-11 | 株式会社村田制作所 | Dual polarized antenna |
| CN111384530A (en) * | 2018-12-31 | 2020-07-07 | 深圳市大富科技股份有限公司 | Dielectric filter, communication equipment, method for preparing dielectric block and dielectric filter |
| CN111786098A (en) * | 2020-06-19 | 2020-10-16 | 深圳市信维通信股份有限公司 | 5G millimeter wave dual-frequency dielectric resonator antenna module and mobile terminal |
| CN215008573U (en) * | 2021-03-26 | 2021-12-03 | 深圳市信维通信股份有限公司 | Integrated dual-frequency dielectric resonant antenna module and electronic equipment |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102130377A (en) * | 2011-01-26 | 2011-07-20 | 浙江大学 | Three-frequency medium resonant antenna with function of coaxial feed |
| CN103843198A (en) * | 2011-07-29 | 2014-06-04 | 萨斯喀彻温大学 | Polymer-based resonator antennas |
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