CN215644983U - Integrated dual-polarization dual-frequency millimeter wave dielectric resonator antenna and electronic equipment - Google Patents
Integrated dual-polarization dual-frequency millimeter wave dielectric resonator antenna and electronic equipment Download PDFInfo
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- CN215644983U CN215644983U CN202121211211.1U CN202121211211U CN215644983U CN 215644983 U CN215644983 U CN 215644983U CN 202121211211 U CN202121211211 U CN 202121211211U CN 215644983 U CN215644983 U CN 215644983U
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Abstract
The utility model discloses an integrated dual-polarized dual-frequency millimeter wave dielectric resonator antenna and electronic equipment, which comprise a dielectric substrate and at least one antenna unit, wherein the antenna unit comprises a first dielectric resonator and a second dielectric resonator, and the first dielectric resonator and the second dielectric resonator are arranged on the dielectric substrate; the dielectric substrate, the first dielectric resonator and the second dielectric resonator are integrally formed. The utility model can reduce the error generated by installation contraposition.
Description
Technical Field
The utility model relates to the technical field of wireless communication, in particular to an integrated dual-polarized dual-frequency millimeter wave dielectric resonator antenna and electronic equipment.
Background
According to the technical specification of 3GPP TS 38.101-25G terminal radio frequency and the technical report of TR38.817 terminal radio frequency, the 5 GmWave frequency band has n257(26.5-29.5GHz), n258(24.25-27.25GHz), n260(37-40GHz), n261(27.5-28.35GHz) and newly added n259(39.5-43 GHz). And the dual-polarized millimeter wave antenna will add 3dB gain to the radio frequency link, so dual polarization is an essential requirement for the design of 5G millimeter wave antennas.
If the dielectric resonator is adopted as a 5G terminal module, the dual-frequency antenna (covering 28GHz and 39GHz) module is generally 2 units of 1 × 4, so that 8 discrete dielectric resonators are needed during installation, 8 times are needed during adhesion and fixation, and the simulation and actual error of the antenna performance caused by the design mode is large.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the integrated dual-polarization dual-frequency millimeter wave dielectric resonator antenna and the electronic equipment can reduce errors generated by installation and alignment.
In order to solve the technical problems, the utility model adopts the technical scheme that: an integrated dual-polarization dual-frequency millimeter wave dielectric resonator antenna comprises a dielectric substrate and at least one antenna unit, wherein the antenna unit comprises a first dielectric resonator and a second dielectric resonator which are arranged on the dielectric substrate; the dielectric substrate, the first dielectric resonator and the second dielectric resonator are integrally formed.
Furthermore, the number of the antenna units is four, and the four antenna units are linearly arranged.
Further, the distance between the first dielectric resonator and the second dielectric resonator in the same antenna unit is 0.4 mm.
Furthermore, the size of the first dielectric resonator is larger than that of the second dielectric resonator, and at least one metalized hole penetrating through the first dielectric resonator is formed in the first dielectric resonator.
Further, the number of the metallized holes is two.
Further, the metalized hole is disposed proximate to the second dielectric resonator.
Furthermore, feed ports corresponding to the antenna units are arranged on the dielectric substrate, and the feed ports include a first feed port, a second feed port, a third feed port and a fourth feed port; the antenna unit further comprises a first microstrip feed line, a second microstrip feed line, a third microstrip feed line and a fourth microstrip feed line; the first dielectric resonator is connected with a first feed port through a first microstrip feed line, and the first dielectric resonator is connected with a second feed port through a second microstrip feed line; the second dielectric resonator is connected with the third feed port through a third microstrip feed line, and the second dielectric resonator is connected with the fourth feed port through a fourth microstrip feed line.
Furthermore, through holes corresponding to the feeding ports one to one are formed in the dielectric substrate, BAG solder balls corresponding to the feeding ports one to one are arranged on one surface, away from the first dielectric resonator and the second dielectric resonator, of the dielectric substrate, and the feeding ports are connected with the BAG solder balls through the through holes.
Further, the dielectric substrate, the first dielectric resonator and the second dielectric resonator have a dielectric constant of 21.
The utility model also provides electronic equipment comprising the integrated dual-polarized dual-frequency millimeter wave dielectric resonator antenna.
The utility model has the beneficial effects that: through setting up base plate and dielectric resonator integration, need not in addition to install dielectric resonator, can avoid the counterpoint precision error that the installation caused. The utility model can greatly reduce the error generated by installation alignment and has the advantages of strong compactness, low profile, dual-frequency dual polarization and the like.
Drawings
Fig. 1 is a schematic structural diagram of an integrated dual-polarized dual-frequency millimeter wave dielectric resonator antenna according to a first embodiment of the present invention;
fig. 2 is a schematic bottom view of an integrated dual-polarized dual-band millimeter wave dielectric resonator antenna according to a first embodiment of the present invention;
FIG. 3 is a schematic diagram of S parameter of 28GHz for polarization 1 according to the first embodiment of the present invention;
FIG. 4 is a diagram illustrating the S parameter of polarization 2 at 28GHz according to a first embodiment of the present invention;
FIG. 5 is a diagram illustrating the S parameter of 39GHz for polarization 1 according to the first embodiment of the present invention;
FIG. 6 is a diagram illustrating the S parameter of 39GHz for polarization 2 according to the first embodiment of the present invention;
fig. 7 is a schematic diagram of coupling between a first dielectric resonator and a second dielectric resonator according to a first embodiment of the present invention;
FIG. 8 is a 3D pattern of polarization 1 at 28GHz according to a first embodiment of the present invention;
FIG. 9 is a 3D pattern of polarization 2 at 28GHz according to a first embodiment of the present invention;
FIG. 10 is a 3D pattern of polarization 1 at 39GHz according to the first embodiment of the present invention;
fig. 11 is a 3D pattern of polarization 2 at 39GHz according to the first embodiment of the present invention.
Description of reference numerals:
1. a dielectric substrate; 2. a first dielectric resonator; 3. a second dielectric resonator; 4. metallizing the hole;
51. a first feed port; 52. a second feed port; 53. a third feed port; 54. a fourth feed port;
61. a first microstrip feed line; 62. a second microstrip feed line; 63. a third microstrip feed line; 64. a fourth microstrip feed line;
7. BAG solder balls.
Detailed Description
In order to explain technical contents, objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1, an integrated dual-polarized dual-frequency millimeter wave dielectric resonator antenna includes a dielectric substrate and at least one antenna unit, where the antenna unit includes a first dielectric resonator and a second dielectric resonator, and the first dielectric resonator and the second dielectric resonator are disposed on the dielectric substrate; the dielectric substrate, the first dielectric resonator and the second dielectric resonator are integrally formed.
From the above description, the beneficial effects of the present invention are: the error caused by installation alignment can be reduced.
Furthermore, the number of the antenna units is four, and the four antenna units are linearly arranged.
Further, the distance between the first dielectric resonator and the second dielectric resonator in the same antenna unit is 0.4 mm.
As is apparent from the above description, the volume of the entire antenna structure can be reduced by compactly arranging two dielectric resonators in the same antenna element.
Furthermore, the size of the first dielectric resonator is larger than that of the second dielectric resonator, and at least one metalized hole penetrating through the first dielectric resonator is formed in the first dielectric resonator.
Further, the number of the metallized holes is two.
Further, the metalized hole is disposed proximate to the second dielectric resonator.
As can be seen from the above description, the coupling is too large because the distance between the two dielectric resonators in the same antenna element is too small, and therefore, the decoupling is performed by providing a metallized hole on the large dielectric resonator.
Furthermore, feed ports corresponding to the antenna units are arranged on the dielectric substrate, and the feed ports include a first feed port, a second feed port, a third feed port and a fourth feed port; the antenna unit further comprises a first microstrip feed line, a second microstrip feed line, a third microstrip feed line and a fourth microstrip feed line; the first dielectric resonator is connected with a first feed port through a first microstrip feed line, and the first dielectric resonator is connected with a second feed port through a second microstrip feed line; the second dielectric resonator is connected with the third feed port through a third microstrip feed line, and the second dielectric resonator is connected with the fourth feed port through a fourth microstrip feed line.
As can be seen from the above description, each dielectric resonator is fed by microstrip feeding.
Furthermore, through holes corresponding to the feeding ports one to one are formed in the dielectric substrate, BAG solder balls corresponding to the feeding ports one to one are arranged on one surface, away from the first dielectric resonator and the second dielectric resonator, of the dielectric substrate, and the feeding ports are connected with the BAG solder balls through the through holes.
As can be seen from the above description, the feed port may be connected to the chip through a BAG solder ball.
Further, the dielectric substrate, the first dielectric resonator and the second dielectric resonator have a dielectric constant of 21.
The utility model also provides electronic equipment comprising the integrated dual-polarized dual-frequency millimeter wave dielectric resonator antenna.
Example one
Referring to fig. 1 to 11, a first embodiment of the present invention is: an integrated dual-polarized dual-frequency millimeter wave dielectric resonator antenna can be applied to a 5G millimeter wave mobile terminal.
As shown in fig. 1, the antenna includes a dielectric substrate 1 and at least one antenna element, and the present embodiment is described by taking four antenna elements as an example, where the four antenna elements are linearly arranged.
Each antenna unit comprises a first dielectric resonator 2 and a second dielectric resonator 3, wherein the first dielectric resonator 2 and the second dielectric resonator 3 are arranged on a dielectric substrate 1; the dielectric substrate 1, the first dielectric resonator 2, and the second dielectric resonator 3 are integrally formed.
Preferably, the dielectric substrate, the first dielectric resonator and the second dielectric resonator are all made of ceramics, and the dielectric constants are all 21. The dielectric resonator antenna formed by the ceramic body is high in processing precision, small in size in a millimeter wave frequency band, low in cost and great in advantages compared with a PCB.
In this embodiment, the first dielectric resonator and the second dielectric resonator are both rectangular parallelepiped in shape. Further, the size of the first dielectric resonator 2 is larger than that of the second dielectric resonator 3. The first dielectric resonators, namely the four large dielectric resonators, in the four antenna units are used for realizing a resonant frequency of 28GHz, and the second dielectric resonators, namely the four small dielectric resonators, in the four antenna units are used for realizing a resonant frequency of 39GHz, so that the dual-frequency dual-polarized antenna is realized.
In this embodiment, the distance between the first dielectric resonator 2 and the second dielectric resonator 3 in the same antenna unit is 0.4 mm; at least one metallized hole 4 penetrating through the first dielectric resonator is arranged in the first dielectric resonator 2, and the number of the metallized holes 4 is two in the embodiment. Since too small a distance between two dielectric resonators in the same antenna element results in too large a coupling, decoupling is achieved by providing metallized holes in the large dielectric resonators.
Preferably, the metallized hole 4 is disposed adjacent to the second dielectric resonator 3. Theoretically, the closer the position of the metallized hole in the first dielectric resonator is to the second dielectric resonator, the better the decoupling effect is, but in practical implementation, practical processes need to be considered.
Further, feeding ports corresponding to the antenna units are respectively arranged on the dielectric substrate 1, specifically, one antenna unit corresponds to four feeding ports, which are respectively a first feeding port 51, a second feeding port 52, a third feeding port 53 and a fourth feeding port 54. In this embodiment, there are four antenna elements, and thus 16 feeding ports are provided on the dielectric substrate in total.
The antenna unit further includes a first microstrip feed line 61, a second microstrip feed line 62, a third microstrip feed line 63, and a fourth microstrip feed line 64; the first dielectric resonator 2 is connected to the first feed port 51 through a first microstrip feed line 61, and the first dielectric resonator 2 is connected to the second feed port 52 through a second microstrip feed line 62; the second dielectric resonator 3 is connected to the third feed port 53 through a third microstrip feed line 63, and the second dielectric resonator 3 is connected to the fourth feed port 54 through a fourth microstrip feed line 64.
That is, the present embodiment adopts a microstrip feeding manner to feed power to each dielectric resonator.
As shown in fig. 2, via holes (not shown in the figure) corresponding to the feed ports are formed in the dielectric substrate 1, and BAG solder balls 7 corresponding to the feed ports are formed on one surface of the dielectric substrate 1 away from the first dielectric resonator and the second dielectric resonator; each feeding port is connected with the corresponding BAG solder ball through the corresponding via hole, so that the feeding ports are connected with the chips on the mainboard through the BAG solder balls.
Fig. 3-6 are schematic diagrams of S parameters of polarization 1 and polarization 2 at 28GHz and 39GHz, respectively, and it can be seen from the diagrams that polarization 1 and polarization 2 can both cover 28GHz and 39GHz, and the antenna of the present embodiment can implement dual-band.
Fig. 7 is a schematic diagram of the coupling between the first dielectric resonator and the second dielectric resonator, and it can be seen from the figure that both are less than-10 dB and the isolation is good.
Fig. 8-11 show 3D patterns for polarization 1 and polarization 2 at 28GHz and 39GHz, respectively, where it can be seen that the beam is normally non-misshapen and has beam scanning capabilities.
The embodiment is through setting up base plate and dielectric resonator integration, need not in addition to install dielectric resonator, can reduce the error that the installation counterpoint produced by a wide margin, and have advantages such as the compactness is strong, low section, dual-frenquency dual polarization.
In summary, according to the integrated dual-polarized dual-frequency millimeter wave dielectric resonator antenna and the electronic device provided by the utility model, the substrate and the dielectric resonator are integrally arranged, so that the dielectric resonator does not need to be additionally installed, and the alignment precision error caused by installation can be avoided; the two dielectric resonators in the same antenna unit are compactly arranged, so that the volume of the whole antenna structure can be reduced; the metallized hole is arranged on the first dielectric resonator to reduce the coupling between the first dielectric resonator and the second dielectric resonator. The utility model can greatly reduce the error generated by installation alignment and has the advantages of strong compactness, low profile, dual-frequency dual polarization and the like.
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. An integrated dual-polarization dual-frequency millimeter wave dielectric resonator antenna is characterized by comprising a dielectric substrate and at least one antenna unit, wherein the antenna unit comprises a first dielectric resonator and a second dielectric resonator which are arranged on the dielectric substrate; the dielectric substrate, the first dielectric resonator and the second dielectric resonator are integrally formed.
2. The integrated dual-polarized dual-frequency millimeter wave dielectric resonator antenna according to claim 1, wherein the number of the antenna elements is four, and the four antenna elements are linearly arranged.
3. The integrated dual-polarized dual-frequency millimeter wave dielectric resonator antenna according to claim 1, wherein the distance between the first dielectric resonator and the second dielectric resonator in the same antenna unit is 0.4 mm.
4. The antenna of claim 1 or 3, wherein the size of the first dielectric resonator is larger than that of the second dielectric resonator, and at least one metallized hole penetrating through the first dielectric resonator is formed in the first dielectric resonator.
5. The integrated dual-polarized dual-frequency millimeter-wave dielectric resonator antenna according to claim 4, wherein the number of the metallized holes is two.
6. The integrated dual-polarized dual-frequency millimeter-wave dielectric resonator antenna according to claim 4, wherein the metallized hole is disposed adjacent to the second dielectric resonator.
7. The integrated dual-polarization dual-frequency millimeter wave dielectric resonator antenna according to claim 1, wherein the dielectric substrate is provided with feeding ports corresponding to the antenna units, respectively, and the feeding ports comprise a first feeding port, a second feeding port, a third feeding port and a fourth feeding port; the antenna unit further comprises a first microstrip feed line, a second microstrip feed line, a third microstrip feed line and a fourth microstrip feed line; the first dielectric resonator is connected with a first feed port through a first microstrip feed line, and the first dielectric resonator is connected with a second feed port through a second microstrip feed line; the second dielectric resonator is connected with the third feed port through a third microstrip feed line, and the second dielectric resonator is connected with the fourth feed port through a fourth microstrip feed line.
8. The antenna of claim 7, wherein via holes corresponding to the feeding ports one to one are formed in the dielectric substrate, BAG solder balls corresponding to the feeding ports one to one are formed on one surface, away from the first dielectric resonator and the second dielectric resonator, of the dielectric substrate, and the feeding ports are connected with the BAG solder balls through the via holes.
9. The integrated dual-polarized dual-frequency millimeter wave dielectric resonator antenna according to claim 1, wherein the dielectric constant of the dielectric substrate, the first dielectric resonator and the second dielectric resonator is 21.
10. An electronic device, characterized in that it comprises an integrated dual-polarized dual-frequency millimeter wave dielectric resonator antenna according to any one of claims 1 to 9.
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| CN202121211211.1U CN215644983U (en) | 2021-06-01 | 2021-06-01 | Integrated dual-polarization dual-frequency millimeter wave dielectric resonator antenna and electronic equipment |
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| CN202121211211.1U CN215644983U (en) | 2021-06-01 | 2021-06-01 | Integrated dual-polarization dual-frequency millimeter wave dielectric resonator antenna and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113410616A (en) * | 2021-06-01 | 2021-09-17 | 深圳市信维通信股份有限公司 | Integrated dual-polarization dual-frequency millimeter wave dielectric resonator antenna and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113410616A (en) * | 2021-06-01 | 2021-09-17 | 深圳市信维通信股份有限公司 | Integrated dual-polarization dual-frequency millimeter wave dielectric resonator antenna and electronic equipment |
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