CN215896691U - Millimeter wave dielectric resonator antenna module and communication equipment - Google Patents
Millimeter wave dielectric resonator antenna module and communication equipment Download PDFInfo
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- CN215896691U CN215896691U CN202121435016.7U CN202121435016U CN215896691U CN 215896691 U CN215896691 U CN 215896691U CN 202121435016 U CN202121435016 U CN 202121435016U CN 215896691 U CN215896691 U CN 215896691U
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Abstract
The utility model discloses a millimeter wave dielectric resonator antenna module and communication equipment, comprising a dielectric resonator; the dielectric resonator is of a cuboid structure, the dielectric resonator is provided with the grooves along the radiation direction, the grooves are formed in the cuboid dielectric resonator along the radiation direction, magnetic lines of force of the cuboid dielectric resonator are distributed more densely after the grooves are formed, the magnetic field intensity is larger, and therefore when the size of the antenna is miniaturized, the gain of the cuboid dielectric resonator antenna is improved.
Description
Technical Field
The utility model relates to the technical field of antennas, in particular to a millimeter wave dielectric resonator antenna module and communication equipment.
Background
5G (5th-Generation, fifth Generation mobile communication technology) is a research and development focus in the global industry, and 5G standards have become common in the industry by developing 5G technology. 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 broadband scene is 20Gbps, and the lowest user experience rate is 100 Mbps.
Due to the unique characteristics of high carrier frequency and large bandwidth of millimeter waves, the millimeter wave antenna is a main means for realizing 5G ultrahigh data transmission rate, the EIRP (Equivalent isotropic Radiated Power) of a radio frequency link is the sum of the antenna gain and the chip output gain, and the high-gain millimeter wave antenna can reduce the output Power of the chip when the EIRP meets the 3GPP standard, so that the chip can radiate heat well.
In the dielectric resonator antenna, if high gain of a conventional rectangular dielectric resonator antenna is to be achieved, a plurality of rectangular dielectric resonators are stacked or arrayed conventionally, but these methods may increase the size of the antenna as a whole, or cause the dielectric resonator to operate in a higher-order mode state, which may cause a problem of size accuracy although the antenna can achieve high-gain radiation.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the utility model provides a millimeter wave dielectric resonator antenna module and communication equipment, can guarantee that the antenna size is miniaturized while, promote the gain of cuboid dielectric resonator antenna.
In order to solve the technical problems, the utility model adopts the technical scheme that:
a millimeter wave dielectric resonator antenna module comprises a dielectric resonator;
the dielectric resonator is of a cuboid structure, and a groove is formed in the dielectric resonator along the radiation direction.
Further, the number of the grooves is two.
Further, the cross section of the groove is rectangular.
Further, the two grooves are identical in size.
Further, the section of the dielectric resonator is H-shaped.
Further, the two grooves are symmetrically arranged about the central axis of the dielectric resonator.
Further, a metal ground is also included;
the metal ground is arranged on one side of the dielectric resonator;
and a rectangular coupling gap is arranged on the metal ground corresponding to the dielectric resonator.
Further, the microstrip line structure also comprises a dielectric substrate and a microstrip line;
the dielectric substrate is arranged on one side of the metal ground far away from the dielectric resonator;
the microstrip line is located in the dielectric substrate and corresponds to the rectangular coupling gap, and is perpendicular to the rectangular coupling gap.
In order to solve the technical problem, the utility model adopts another technical scheme as follows:
a communication device comprises the millimeter wave dielectric resonator antenna module.
The utility model has the beneficial effects that: through set up the recess at cuboid dielectric resonator along radiation direction, can make cuboid dielectric resonator more intensive in the magnetic line of force distribution behind setting up the recess, magnetic field intensity is bigger to when guaranteeing that antenna size is miniaturized, make the gain of cuboid dielectric resonator antenna obtain promoting.
Drawings
Fig. 1 is a schematic diagram of an overall structure of a millimeter wave dielectric resonator antenna module according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an internal structure of an antenna module of a millimeter wave dielectric resonator according to an embodiment of the present invention;
fig. 3 is a bottom view of an internal structure of an antenna module of a millimeter wave dielectric resonator according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a rectangular dielectric resonator antenna before grooving in a millimeter wave dielectric resonator antenna module according to an embodiment of the present invention;
fig. 5 is an S parameter diagram of a rectangular dielectric resonator antenna before and after grooving in a millimeter wave dielectric resonator antenna module according to an embodiment of the present invention;
FIG. 6 shows an embodiment of the utility model, in which a rectangular dielectric resonator antenna before grooving in a millimeter wave dielectric resonator antenna module is in TEy 111The cross-sectional profile of the magnetic field lines in the mode;
FIG. 7 shows a TE of rectangular dielectric resonator antenna after grooving in a millimeter wave dielectric resonator antenna module according to an embodiment of the present inventiony 111The cross-sectional profile of the magnetic field lines in the mode;
fig. 8 is a graph comparing the gain of the rectangular dielectric resonator antenna before and after the slot is cut in the millimeter wave dielectric resonator antenna module according to the embodiment of the utility model with the frequency,
description of reference numerals:
1. a dielectric resonator; 11. a groove; 2. a metal ground; 3. a rectangular coupling slot; 4. a dielectric substrate; 5. a microstrip line.
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, a millimeter wave dielectric resonator antenna module includes a dielectric resonator;
the dielectric resonator is of a cuboid structure, and two grooves are formed in the dielectric resonator along the direction of a radiation mode.
From the above description, the beneficial effects of the present invention are: through set up the recess at cuboid dielectric resonator along radiation direction, can make cuboid dielectric resonator more intensive in the magnetic line of force distribution behind setting up the recess, magnetic field intensity is bigger to when guaranteeing that antenna size is miniaturized, make the gain of cuboid dielectric resonator antenna obtain promoting.
Further, the number of the grooves is two.
Further, the cross section of the groove is rectangular.
Further, the two grooves are identical in size.
Further, the section of the dielectric resonator is H-shaped.
Further, the two grooves are symmetrically arranged about the central axis of the dielectric resonator.
It can be known from the above description that two identical grooves are symmetrically arranged in the radiation direction of the rectangular dielectric resonator, and the grooves can change the magnetic field distribution inside the dielectric resonator, so that the magnetic force lines are distributed more densely, and the magnetic field intensity is improved.
Further, a metal ground is also included;
the metal ground is arranged on one side of the dielectric resonator;
and a rectangular coupling gap is arranged on the metal ground corresponding to the dielectric resonator.
According to the above description, the rectangular coupling slot is arranged at the position corresponding to the dielectric resonator on the metal ground, so that the rectangular coupling slot is conveniently used for carrying out microstrip slot feeding on the dielectric resonator subsequently, and the slot coupling feeding can effectively increase the impedance bandwidth of the antenna.
Further, the microstrip line structure also comprises a dielectric substrate and a microstrip line;
the dielectric substrate is arranged on one side of the metal ground far away from the dielectric resonator;
the microstrip line is located in the dielectric substrate and corresponds to the rectangular coupling gap, and is perpendicular to the rectangular coupling gap.
As can be seen from the above description, the microstrip line feeds the dielectric resonator through the rectangular coupling slot, and the impedance matching can be achieved by changing the position of the microstrip line.
Another embodiment of the present invention provides a communication device, which includes the above millimeter wave microstrip antenna module.
The antenna module can be applied to devices of a 5G millimeter wave communication system, such as handheld mobile devices, and the following description is made by way of specific embodiments:
example one
Referring to fig. 1-3 and 6, an antenna module of a millimeter wave dielectric resonator according to the present embodiment includes a dielectric resonator 1;
the dielectric resonator 1 is of a cuboid structure, and a groove 11 is formed in the dielectric resonator 1 along the radiation direction;
specifically, as shown in fig. 6, the dielectric resonator 1 is at TEy 111The radiation direction in the mode is the y-direction, and therefore, the grooves 11 are provided along the y-direction, as shown in fig. 1;
in an alternative embodiment, the dielectric resonator 1 has a dielectric constant of 10, and the dielectric resonator 1 has a length of 4 mm, a width of 3.28 mm, and a height of 2 mm;
as shown in fig. 1, further comprises a metal ground 2;
the metal ground 2 is arranged on one side of the dielectric resonator 1;
a rectangular coupling gap 3 is arranged at the position, corresponding to the dielectric resonator 1, on the metal ground 2;
as shown in fig. 2 and 3, further includes a dielectric substrate 4 and a microstrip line 5;
the dielectric substrate 4 is arranged on one side of the metal ground 2 far away from the dielectric resonator 1;
the microstrip line 5 is located in the dielectric substrate 4 at a position corresponding to the rectangular coupling slot 3 and perpendicular to the rectangular coupling slot 3.
Example two
Referring to fig. 1, 4-8, the difference between the present embodiment and the first embodiment is that the specific structure of the groove is defined:
as shown in fig. 1, the number of the grooves 11 is two;
the cross section of the groove 11 is rectangular;
the two grooves 11 are identical in size;
the section of the dielectric resonator 1 is H-shaped;
two grooves 11 are symmetrically arranged about the central axis of the dielectric resonator 1;
in an alternative embodiment, the length of the groove 11 is equal to the length of the dielectric resonator 1, and is 4 mm, the width of the groove 11 is 1.5 mm, and the height is 1 mm;
fig. 4 is a rectangular dielectric resonator antenna before grooving in the millimeter wave dielectric resonator antenna module according to the embodiment of the present invention;
fig. 5 is an S parameter diagram of the rectangular dielectric resonator antenna before and after the slot is cut in the millimeter wave dielectric resonator antenna module according to the embodiment of the present invention, it can be seen that the rectangular dielectric resonator antenna before the slot is cut covers four frequency bands of N257(26.5-29.5GHz), N258(24.25-27.25GHz), N260(37-40GHz), and N261(27.5-28.35GHz) below-10 db, and the rectangular dielectric resonator antenna after the slot is cut only covers the frequency band of N260(37-40GHz) below-10 db, so that the bandwidth of the rectangular dielectric resonator antenna after the slot is cut is reduced;
FIG. 6 shows the TE of the rectangular dielectric resonator antenna before the millimeter wave dielectric resonator antenna module is dugy 111The cross-sectional profile of the magnetic field lines in the mode;
FIG. 7 shows the TE of the rectangular dielectric resonator antenna after the slot is cut in the millimeter wave dielectric resonator antenna module according to the embodiment of the present inventiony 111The cross-sectional profile of the magnetic field lines in the mode;
as can be seen from fig. 6 and 7, the magnetic lines of force of the rectangular dielectric resonator antenna after grooving are distributed more densely, and the magnetic field strength is larger;
fig. 8 is a comparison graph of the gain of the rectangular dielectric resonator antenna before and after the grooving in the millimeter wave dielectric resonator antenna module according to the embodiment of the present invention, which shows that the gain of the rectangular dielectric resonator antenna after the grooving is higher than the gain of the rectangular dielectric resonator antenna before the grooving, and the gain of the rectangular dielectric resonator antenna after the grooving is increased by approximately 3dB at 39 GHz.
EXAMPLE III
A communication device, comprising the millimeter wave dielectric resonator antenna module according to the first embodiment or the second embodiment.
In summary, the millimeter wave dielectric resonator antenna module and the communication device provided by the present invention include a dielectric resonator, the dielectric resonator is of a cuboid structure, a groove is arranged along the radiation direction of the dielectric resonator, the number of the grooves is two, the cross section of each groove is rectangular, the sizes of the two grooves are consistent, the two grooves are arranged symmetrically about the central axis of the dielectric resonator, the section of the dielectric resonator is H-shaped, two identical grooves are symmetrically arranged on the cuboid dielectric resonator along the radiation direction, the grooves can change the magnetic field distribution in the dielectric resonator, so that the magnetic force lines are distributed more densely, the magnetic field intensity is larger, the gain of the cuboid dielectric resonator antenna is not required to be improved by methods such as stacking or array forming, therefore, the gain of the cuboid dielectric resonator antenna is improved while the miniaturization of the antenna size is ensured.
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 (9)
1. A millimeter wave dielectric resonator antenna module is characterized by comprising a dielectric resonator;
the dielectric resonator is of a cuboid structure, and a groove is formed in the dielectric resonator along the radiation direction.
2. The millimeter wave dielectric resonator antenna module of claim 1, wherein the number of the grooves is two.
3. The millimeter wave dielectric resonator antenna module according to claim 1 or 2, wherein the cross section of the groove is rectangular.
4. The millimeter wave dielectric resonator antenna module of claim 2, wherein the two grooves have the same size.
5. The millimeter wave dielectric resonator antenna module according to claim 1, wherein the cross section of the dielectric resonator is "H" shaped.
6. The millimeter wave dielectric resonator antenna module according to claim 2, wherein the two grooves are symmetrically arranged with respect to a central axis of the dielectric resonator.
7. The millimeter wave dielectric resonator antenna module of claim 1, further comprising a metal ground;
the metal ground is arranged on one side of the dielectric resonator;
and a rectangular coupling gap is arranged on the metal ground corresponding to the dielectric resonator.
8. The millimeter wave dielectric resonator antenna module according to claim 7, further comprising a dielectric substrate and a microstrip line;
the dielectric substrate is arranged on one side of the metal ground far away from the dielectric resonator;
the microstrip line is located in the dielectric substrate and corresponds to the rectangular coupling gap, and is perpendicular to the rectangular coupling gap.
9. A communication device comprising a millimeter wave dielectric resonator antenna module according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121435016.7U CN215896691U (en) | 2021-06-25 | 2021-06-25 | Millimeter wave dielectric resonator antenna module and communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121435016.7U CN215896691U (en) | 2021-06-25 | 2021-06-25 | Millimeter wave dielectric resonator antenna module and communication equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215896691U true CN215896691U (en) | 2022-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121435016.7U Active CN215896691U (en) | 2021-06-25 | 2021-06-25 | Millimeter wave dielectric resonator antenna module and communication equipment |
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| CN (1) | CN215896691U (en) |
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2021
- 2021-06-25 CN CN202121435016.7U patent/CN215896691U/en active Active
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