CN108695597B - Dual-polarized patch antenna unit with hollow structure - Google Patents
Dual-polarized patch antenna unit with hollow structure Download PDFInfo
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- CN108695597B CN108695597B CN201810633504.5A CN201810633504A CN108695597B CN 108695597 B CN108695597 B CN 108695597B CN 201810633504 A CN201810633504 A CN 201810633504A CN 108695597 B CN108695597 B CN 108695597B
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- 239000002184 metal Substances 0.000 claims abstract description 66
- 230000005855 radiation Effects 0.000 claims abstract description 63
- 239000000758 substrate Substances 0.000 claims abstract description 37
- 239000002609 medium Substances 0.000 claims description 38
- 239000012526 feed medium Substances 0.000 claims description 23
- 230000009977 dual effect Effects 0.000 claims description 14
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims 1
- 238000002955 isolation Methods 0.000 abstract description 14
- 238000005388 cross polarization Methods 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 abstract description 8
- 239000010410 layer Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000010287 polarization Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000006880 cross-coupling reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001808 coupling effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/045—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means
Abstract
The invention relates to a dual-polarized patch antenna unit with a hollowed-out structure, which comprises a substrate, wherein a radiation module is arranged on one surface of the substrate, and a hollowed-out area is arranged at the position of the substrate corresponding to the radiation module; the radiation module is arranged above the hollowed-out area; the radiation module is provided with a shielding metal ground for combining the hollowed-out area to inhibit leakage of radiation energy of the power division network to the antenna unit. The substrate back of the antenna unit adopts a hollowed structure to form a small closed cavity behind the power division network, the cavity can restrict the radiation energy of the power division network in the cavity, and the radiation of the energy to the antenna unit is jointly restrained with the shielding metal ground in the radiation module, so that the interference on the radiation performance of the unit is reduced, the cross polarization of a directional diagram is further improved, and the isolation degree is improved.
Description
Technical Field
The invention relates to the technical field of communication antennas, in particular to a dual-polarized patch antenna unit with a hollowed-out structure.
Background
The 5G mobile communication antenna widely adopts the array technology of massive mimo (multiple input multiple output), which requires the antenna design to conform to the following principles: 1. miniaturization, low profile and easy integration; the aperture size of the antenna array is reduced, the section is reduced, the antenna array and the active beam shaping network are integrated, and the problems of the size and the distribution space of the whole system and mutual compatibility of all system modules are related. 2. High isolation and low cross coupling effect. In a MIMO system, mutual coupling between antenna units not only reduces isolation of channels, but also reduces communication efficiency of the entire system. However, the current base station antenna unit widely adopts the technical scheme of dipoles, the height and the area of the base station antenna unit are in direct proportion to the wavelength, the section is high, the volume is large, the mutual coupling among the units is strong, the isolation is difficult to improve, the directional diagram is distorted, and the overall performance of the antenna array is seriously influenced; besides mutual coupling effect among vibrators, the radiation energy of the complicated pet-shaped feed network has serious influence on the performance of the antenna, and an effective mode is needed to restrain the energy leakage, so that the radiation pattern of the antenna is purer and more excellent.
Based on the above requirements, the invention provides a dual-polarized patch antenna unit with miniaturization, low profile, high isolation and low cross coupling influence.
Disclosure of Invention
The invention aims to solve the technical problem of providing a dual-polarized patch antenna unit with a hollowed-out structure, which comprises a substrate, wherein a radiation module is arranged on one surface of the substrate, and a hollowed-out area is arranged at a position of the substrate corresponding to the radiation module; the radiation module is arranged above the hollowed-out area, and the area of the hollowed-out area is smaller than that of the radiation module; the radiation module is provided with a shielding metal ground and is used for combining a hollowed-out area to inhibit leakage of radiation energy of the power division network to the antenna unit;
the radiation module comprises at least one layer of supporting medium, and a feed medium is further arranged on the surface, close to the substrate, of the supporting medium; the surface of the feed medium, which is close to the substrate, is provided with a power division feed network; a radiation patch is arranged on the surface of each layer of supporting medium far away from the substrate, and the radiation patch is not arranged in the hollowed-out area;
the upper surface of the feed medium is provided with the shielding metal ground, the lower surface of the feed medium is provided with a first metal ground surrounding the hollowed-out area and a third metal ground positioned in the hollowed-out area, the third metal ground is insulated from each branch of the power division feed network, and the metallized via holes penetrate through the feed medium to connect the third metal ground and the shielding metal ground; a metallized via hole in the substrate connects the fourth metal ground on the lower surface of the substrate with the second metal ground on the upper surface; the first metal ground of the lower surface of the feed medium is connected to the second metal ground of the upper surface of the substrate.
Further, the power distribution device also comprises a metal feed post which is used for penetrating through the feed medium and the supporting medium respectively and connecting the radiation patch and the power distribution feed network to realize feed.
Further, a shielding metal ground and an avoidance hole for isolating the shielding metal ground from the metal feed column are arranged on the surface, away from the power division feed network, of the feed medium, and the avoidance hole is arranged corresponding to the output end of the power division feed network;
the metal feed column keeps a certain distance from the shielding metal ground through the avoidance hole.
Further, the power division feed network comprises two groups of power dividers which keep a certain distance and two groups of input ends which are connected with the power dividers, and two tail ends of the power dividers are respectively connected with the output ends;
after the output ends of the power dividers in the same group in the power division feed network are connected, the included angle between the two connecting wires of the output ends in different groups is 90 degrees.
Further, the amplitude difference from the input end to the two output ends of the same group in the power division feed network is smaller than 0.5dB, and the phase difference is 160-200 degrees.
Further, the area ratio of adjacent radiation patches is 0.8-2.3.
Further, the height of the supporting medium is 0.002-0.1 working wavelength.
Further, the dielectric constant of the supporting medium is 1.0-16.0.
Further, the shape of the radiation patch includes a polygon or a circle.
Compared with the prior art, the invention has the beneficial effects that:
the invention can greatly reduce the size and the height of the units by reasonably setting the dielectric constants and the heights of the supporting mediums of each layer, realize miniaturization and low profile, effectively reduce the mutual coupling among the units in the array, improve the isolation, and change the characteristics of wave width, gain, cross polarization and the like of the radiation pattern.
The power distribution network of each group of the invention adopts constant amplitude reverse phase feeding to the radiation patch, which can eliminate higher order modes in the patch, effectively inhibit the mutual interference in the unit and improve the isolation and cross polarization characteristics.
The substrate back of the invention adopts a hollowed structure to form a small closed cavity behind the power division network, the cavity can restrict the radiation energy of the power division network in the cavity, and the radiation of the energy to the antenna unit is jointly restrained with the shielding metal, thereby reducing the interference on the radiation performance of the unit, further improving the cross polarization of the directional diagram and improving the isolation. In addition, the mode of back hollowing makes the fixing mode of the unit and the substrate only need to weld through a large-area metal ground, has larger process allowance, reduces the requirement on processing precision, and improves the producibility and reliability of the device.
Drawings
Fig. 1 is an exploded schematic view of a dual polarized patch antenna element having a hollowed-out structure;
fig. 2 is a schematic diagram of a dual polarized patch antenna element with a hollowed-out structure;
FIG. 3 is a schematic cross-sectional view of FIG. 2;
FIG. 4 is a schematic diagram of a power division feed network of a lower surface of a feed medium;
FIG. 5 is a schematic diagram showing the combination of a power distribution feed network and a substrate;
FIG. 6 is a schematic diagram of a feed medium;
FIG. 7 is a graph of standing waves of a dual polarized patch antenna element with a hollowed-out structure;
fig. 8 is a graph of isolation curves for dual polarized patch antenna elements with hollowed-out structures;
fig. 9 is a radiation pattern of a dual polarized patch antenna element having a hollowed-out structure.
The marks in the figure are as follows: 1-a substrate; 10-hollow areas; 101-extending branches; 2-feeding medium; 3-metal feed posts; 4-a first support medium; 5-a first radiating patch; 6-a second support medium; 7-a second radiating patch; 20-a power division feed network; 21-a first power divider; 22-a second power divider; 23-shielding the metal ground; 24-avoiding holes; 24-metallizing the via holes; 201-a first output; 202-a third output; 203-a second input; 204-a first input; 205-a second output; 206-a fourth output; 207-third power dividing branch; 208-fourth power dividing branches; 209-first power dividing branches; 210-second power division knots.
Description of the embodiments
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the embodiments of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The invention provides a dual-polarized patch antenna unit with a hollowed-out structure, which is shown in fig. 1, and comprises a substrate 1, wherein a radiation module is arranged on one surface of the substrate 1, a hollowed-out area 10 is arranged at the position of the substrate 1 corresponding to the radiation module, the radiation module is arranged above the hollowed-out area 10, a power division feed network 20 of the radiation module is arranged between closed areas of the hollowed-out area 10, and radiation energy of the radiation module is restrained in the areas. At the same time the radiation module is provided with a shielding metal ground 23, which further inhibits leakage of the radiation energy to the antenna element.
The interference to the unit radiation performance is effectively reduced through the combination of the hollow area 10 and the shielding metal ground 23 in the scheme, the cross polarization of the directional diagram is effectively improved, and the isolation is improved.
Further, the radiation module comprises at least two layers of supporting media, and the surface, close to the substrate 1, of the supporting media is also provided with a feed medium 2;
the power division feed network 20 is arranged on the surface, close to the substrate 1, of the feed medium 2;
each layer of supporting medium is provided with a radiation patch on the surface facing away from the substrate 1.
It should be noted here that the support medium is a single-layer or multi-layer structure, and the number of layers is designed according to the requirements. In this embodiment, the supporting medium is set to include a first supporting medium 4 and a second supporting medium 6 from bottom to top, and in this embodiment, the feeding medium 2, the first supporting medium 4 and the second supporting medium 6 are sequentially pressed together to form an integral structure and are disposed directly above the hollow area 10, the first metal land is disposed on the lower surface of the feeding medium 2 around the hollow area, and the first metal land and the second metal land on the upper surface of the substrate 1 are welded together through an SMT process to achieve a fixed purpose. Compared with the traditional manual installation mode of the symmetrical vibrators, the mode of welding the large-area metal ground only has the advantages of being high in consistency and good in stability, and has larger process allowance, requirements on machining precision are reduced, and the producibility and reliability are improved. Here, a first radiation patch 5 and a second radiation patch 7 are respectively provided on the first support medium 4 and the second support medium 6.
In yet other embodiments, the support medium may be a single layer or a more layered structure, rather than being limited to the structures described above.
The metal feed post 3 is used for penetrating the feed medium 2 and the first supporting medium 4 respectively and connecting the first radiation patch 5 and the feed network to realize feed.
It should be noted that the radiation patches may be of different shapes, such as polygonal, circular or triangular, and rectangular structures are used in the embodiments herein, for example, where the area ratio of the radiation patches on the first support medium 4 to the second support medium 6 is 0.8-2.3. To form two close resonant frequencies, widening the impedance bandwidth.
In order to function as a support, the area of the hollowed-out area 10 is smaller than the area of the feed medium 2.
Further, after the output ends of the power dividers in the same group in the power dividing feed network 20 are connected, the included angle between the two connecting lines of the output ends in different groups is 90 degrees. Each output end is connected with one metal feed column 3, the metal feed columns 3 are vertically arranged, are positioned at non-adjacent rectangular angular positions of the radiation patches and are in contact with the first radiation patch 5, and further can be regarded as that four metal feed columns are arranged at positions close to rectangular corners of the radiation patches at intervals. The two groups of power dividers directly feed the radiation patch through the metal feed column, so that the radiation characteristics of two orthogonal polarizations are realized.
Further, two groups of power splitters in the power feed network 20 are called a first power splitter 21 and a second power splitter 22, respectively, two output ends of the first power splitter 21 are called a first output end 201 and a second output end 205, respectively, and two output ends of the second power splitter 22 are called a third output end 202 and a fourth output end 206, respectively. The specific distribution is that the first output terminal 201, the third output terminal 202, the second output terminal 205, and the fourth output terminal 206 are arranged clockwise in sequence along four of the rectangular areas. And the first output end 201 and the second output end 205 form a first connection line, the third output end 202 and the fourth output end 206 form a second connection line, and an included angle between the first connection line and the second connection line is 90 degrees.
The amplitude difference from the input end to the two output ends of the same group in the power division feed network 20 is smaller than 0.5dB, and the phase difference is 160-200 degrees. The method comprises the following steps: the first power splitting junction 209 and the second power splitting junction 210 of the first power splitter 21 have the same width to ensure that the amplitude difference between the first input 204 and the first output 201 and the second output 205 is less than 0.5dB. The length of the branch from the first output 201 to the first input 204 of the first power divider 21 is longer than the length of the branch from the second output 205 to the first input 204, and the first branch 209 is longer than the second branch 210. The line length difference between the first power branch 209 and the second power branch 210 is a quarter of the medium wavelength corresponding to the center frequency, so as to achieve that the phase difference between the first input end 204 and the first output end 201 and the second output end 205 is 180 degrees relative to the center frequency, and is kept between 160-200 degrees relative to the edge frequency. Longer knots can be bent according to layout requirements. The second power divider 22 is arranged using the same principle. Through the arrangement, the two groups of power dividers can feed the patch by adopting a constant-amplitude and opposite-phase method respectively, so that a higher order mode in the patch is eliminated, mutual interference in a unit is effectively inhibited, and isolation and cross polarization characteristics are improved.
Further, in the embodiment, four metal feeding columns 3 are vertically disposed and are respectively fixedly connected with the first output end 201, the third output end 202, the second output end 205 and the fourth output end 206 to realize conduction, and since the first output end 201 and the third output end 202 form a first connection line, the second output end 205 and the fourth output end 206 form a second connection line, and an included angle between the first connection line and the second connection line is 90 degrees, two orthogonal polarizations are formed by the distribution form of the four metal feeding columns 3, and each polarization is in a feeding mode with equal amplitude and opposite phase.
In order to meet the technical requirement of miniaturization, the embodiment is described in detail aiming at 2500-2700MHz of the current frequency band of 5G, the height of the supporting medium is 0.002-0.1 working wavelength, and the dielectric constant of the supporting medium is 1.0-6.2. Increasing the dielectric constant of the dielectric reduces the area of the cell, but at the same time increases the Q of the antenna and reduces the bandwidth, and decreasing the dielectric height reduces the cross section of the cell, but also increases the Q and affects the bandwidth. Through the optimal design, compared with the traditional symmetrical oscillator unit, the unit provided by the scheme has the advantages that the area is reduced by more than 60%, the height is reduced by more than 75%, the miniaturization is truly realized, the cross coupling among the units in the array can be effectively reduced, the isolation degree is improved, and the characteristics of the wave width, the gain, the cross polarization and the like of the radiation pattern are changed.
Further, a shielding metal ground 23 and an avoidance hole 24 for isolating the shielding metal ground 23 from the metal feed column 3 are arranged on the surface, away from the power division feed network 20, of the feed medium 2, and the avoidance hole 24 is arranged corresponding to the output end of the power division feed network 20;
the metal feed post 3 is kept at a certain distance from the shielding metal ground 23 through the avoidance hole 24.
The four metal feed studs 3 are isolated from the shielding metal ground 23 by means of relief openings 24 when passing through the feed medium 2.
In order to further suppress the energy leakage of the feeding network, the two groups of power-division feeding networks 20 are both in the form of GCPW transmission lines, that is, a third metal ground is further disposed on the lower surface of the feeding medium 2 and is located in the hollowed-out area 10, insulated from each branch of the power-division feeding network 20 and ensuring a certain gap, and the metallized via holes 25 penetrate through the feeding medium 2 to connect the third metal ground with the shielding metal ground 23, so as to further suppress the energy leakage of the feeding network. Likewise, the elongated branches on the substrate 1 are also in the form of GCPW transmission lines, with metallized vias in the substrate 1 connecting the fourth metal ground on the lower surface of the substrate 1 to the second metal ground on the upper surface.
Referring to fig. 5, specifically, when the feeding medium 2 is soldered to the substrate 1, the first input terminal 203 and the second input terminal 204 are respectively overlapped with one end of the extension branch 101 on the substrate 1, but are insulated from the second metal ground on the upper surface of the substrate 1, and are fixed by soldering or conductive adhesive, so as to realize connection between the unit and the external feeding network.
Of course, the transmission line form of the power division feeding network 20 is not unique, and can be implemented by a simple microstrip line.
In fig. 7, in the 2500-2700MHz frequency band required by the current 5G, it can be seen that the standing waves of both polarized ports of the antenna unit of the present invention are less than 1.25, and the solid line and the broken line represent the standing waves of one polarized port respectively.
As shown in fig. 8, in the 2500-2700MHz band required by the current 5G, the isolation between the two ports of the antenna unit of the present invention is less than-34 dB.
As shown in fig. 9, the radiation pattern of the antenna element of the present invention has an axial cross polarization of less than-34 dB. In the figure the solid line represents the main polarization and the dashed line represents the cross polarization.
From the results, the antenna unit has the advantages of wide frequency band, high isolation, good cross polarization and the like, and is suitable for the requirements of a 5G base station communication system.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (9)
1. The utility model provides a dual polarized patch antenna unit with hollow out construction, includes base plate (1), be equipped with radiation module on one face of base plate (1), its characterized in that: the position of the substrate (1) corresponding to the radiation module is provided with a hollowed-out area (10); the radiation module is arranged above the hollowed-out area (10), and the area of the hollowed-out area (10) is smaller than that of the radiation module; the radiation module is provided with a shielding metal ground (23) for combining the hollowed-out area (10) to inhibit the leakage of radiation energy of the power division network to the antenna unit;
the radiation module comprises at least one layer of supporting medium, and the surface of the supporting medium, which is close to the substrate (1), is also provided with a feed medium (2); the power division feeding network (20) is arranged on the surface, close to the substrate (1), of the feeding medium (2); a radiation patch is arranged on the surface of each layer of supporting medium far away from the substrate (1), and the radiation patch is not arranged in the hollowed-out area (10);
the upper surface of the feed medium (2) is provided with the shielding metal ground (23), the lower surface of the feed medium (2) is provided with a first metal ground surrounding the hollowed-out area (10) and a third metal ground positioned in the hollowed-out area (10), the third metal ground is insulated from each branch of the power division feed network (20), and a metallized via hole (25) penetrates through the feed medium (2) to connect the third metal ground with the shielding metal ground (23); the metallized via hole in the substrate (1) connects the fourth metal ground on the lower surface of the substrate (1) with the second metal ground on the upper surface; the first metal ground of the lower surface of the feed medium (2) is connected to the second metal ground of the upper surface of the substrate (1).
2. The dual polarized patch antenna unit with hollowed-out structure as claimed in claim 1, wherein: the power distribution system further comprises a metal feed column (3) which is used for penetrating through the feed medium (2) and the supporting medium respectively and connecting the radiation patch and the power distribution feed network (20) to realize feed.
3. The dual polarized patch antenna unit with hollowed-out structure as claimed in claim 2, wherein: the surface of the feed medium (2) far away from the power division feed network (20) is provided with a shielding metal ground (23) and an avoidance hole (24) for isolating the shielding metal ground (23) from the metal feed column (3), wherein the avoidance hole (24) is arranged corresponding to the output end of the power division feed network (20);
the metal feed column (3) is kept at a certain distance from the shielding metal ground (23) through the avoidance hole (24).
4. The dual polarized patch antenna unit with hollowed-out structure as claimed in claim 2, wherein: the power division feed network (20) comprises two groups of power dividers which keep a certain distance and two groups of input ends which are connected with the power dividers, and the two tail ends of the power dividers are respectively connected with the output ends;
after the output ends of the power dividers in the same group in the power dividing feed network (20) are connected, the included angle between the two connecting lines of the output ends in different groups is 90 degrees.
5. The dual polarized patch antenna unit with hollowed-out structure as defined by claim 4, wherein: the amplitude difference from the input end to the two output ends of the same group in the power division feed network (20) is smaller than 0.5dB, and the phase difference is 160-200 degrees.
6. The dual polarized patch antenna unit with hollowed-out structure as claimed in claim 2, wherein: the area ratio of adjacent radiation patches is 0.8-2.3.
7. The dual polarized patch antenna unit with hollowed-out structure as claimed in claim 2, wherein: the height of the supporting medium is 0.002-0.1 working wavelength.
8. The dual polarized patch antenna element having a hollowed-out structure as claimed in claim 2 or 7, wherein: the dielectric constant of the supporting medium is 1.0-16.0.
9. The dual polarized patch antenna element having a hollowed-out structure as claimed in claim 2 or 6, wherein: the shape of the radiating patch includes a polygon or a circle.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810633504.5A CN108695597B (en) | 2018-06-20 | 2018-06-20 | Dual-polarized patch antenna unit with hollow structure |
| PCT/CN2018/101943 WO2019242088A1 (en) | 2018-06-20 | 2018-08-23 | Dual-polarized patch antenna unit with hollowed-out structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810633504.5A CN108695597B (en) | 2018-06-20 | 2018-06-20 | Dual-polarized patch antenna unit with hollow structure |
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| Publication Number | Publication Date |
|---|---|
| CN108695597A CN108695597A (en) | 2018-10-23 |
| CN108695597B true CN108695597B (en) | 2024-02-06 |
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| CN201810633504.5A Active CN108695597B (en) | 2018-06-20 | 2018-06-20 | Dual-polarized patch antenna unit with hollow structure |
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| CN (1) | CN108695597B (en) |
| WO (1) | WO2019242088A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571520A (en) * | 2019-10-12 | 2019-12-13 | 江苏联智微通信科技有限公司 | Low-profile 5G antenna radiation unit and antenna array |
| CN110797640B (en) * | 2019-11-07 | 2021-09-07 | 西安电子工程研究所 | Ka frequency band broadband low-profile dual-linear polarization microstrip antenna based on high-frequency lamination technology |
| CN110856088A (en) * | 2019-12-03 | 2020-02-28 | 瑞声科技(新加坡)有限公司 | Loudspeaker and assembling method thereof |
| CN112821069B (en) * | 2021-01-04 | 2023-04-11 | 中信科移动通信技术股份有限公司 | Patch radiating element and base station antenna |
| CN113764892A (en) * | 2021-09-02 | 2021-12-07 | 上海安费诺永亿通讯电子有限公司 | Millimeter wave antenna, antenna array, antenna module and electronic equipment |
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| CN108695597A (en) | 2018-10-23 |
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