CN108987947B - 3D-MID technology array antenna - Google Patents
3D-MID technology array antenna Download PDFInfo
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- CN108987947B CN108987947B CN201810676982.4A CN201810676982A CN108987947B CN 108987947 B CN108987947 B CN 108987947B CN 201810676982 A CN201810676982 A CN 201810676982A CN 108987947 B CN108987947 B CN 108987947B
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- 238000005516 engineering process Methods 0.000 title claims description 16
- 239000000758 substrate Substances 0.000 claims abstract description 59
- 238000002955 isolation Methods 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 16
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 4
- 238000009826 distribution Methods 0.000 claims abstract description 3
- 230000005855 radiation Effects 0.000 claims description 36
- 230000003071 parasitic effect Effects 0.000 claims description 9
- 239000011324 bead Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 125000006850 spacer group Chemical group 0.000 abstract 3
- 238000010586 diagram Methods 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
-
- 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
-
- 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
-
- 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
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
- H01Q1/523—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between antennas of an array
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0013—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0086—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices having materials with a synthesized negative refractive index, e.g. metamaterials or left-handed materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0093—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices having a fractal shape
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
- H01Q21/0075—Stripline fed arrays
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
Abstract
The utility model provides a 3D-MID technique array antenna, including the feed circuit dielectric substrate, one side surface of feed circuit dielectric substrate is provided with the metal ground, the isolation district that forms a plurality of array distributions is around forming through the spacer on the opposite side of feed circuit dielectric substrate, be provided with antenna element in the isolation district, the spacer of two adjacent two antenna elements comprises magnetic negative metamaterial unit, magnetic negative metamaterial unit comprises two square spiral resonator cascade connection, magnetic negative metamaterial unit that two square spiral resonator cascade connection formed is placed between two adjacent antenna elements, play the effect of spacer, improve the isolation when decoupling, this application is from suppressing the mutual coupling angle, reach the decoupling target through loading magnetic negative metamaterial unit between antenna element.
Description
Technical Field
The invention relates to the technical field of mobile communication base stations, in particular to a 3D-MID technology array antenna.
Background
As the integration of electronic devices increases, the volume of the communication device becomes smaller, and the electronic components become excessively large for the entire device, which requires a reduction in size. However, reducing the size without significantly affecting the function and efficiency of the electronic assembly is a difficult task. Under the background, the realization of a processing technology of a 3D-MID (Three-dimensional Molded Interconnect Device, three-dimensional interconnection plastic mold device) which is identical to a carrier is important through innovation of a laser Three-dimensional precision processing technology.
In a MIMO antenna system, interaction between antenna units is unavoidable, which often has a certain influence on the performance of the whole antenna system, and in particular, the use of passive MIMO array antennas for 5G communication, mutual coupling becomes a factor to be considered.
Disclosure of Invention
The invention aims to solve the problem that the performance of an antenna system is seriously affected by the existence of a mutual coupling phenomenon in the conventional MIMO antenna system, and provides a 3D-MID technology array antenna.
The invention solves the technical problems, and adopts the following technical scheme:
the utility model provides a 3D-MID technique array antenna, including the feed line dielectric substrate, one side surface of feed line dielectric substrate is provided with metal ground, the opposite side of feed line dielectric substrate is gone up and is surrounded and form a plurality of isolation areas that are array distribution through the parting bead, be provided with antenna unit in the isolation area, the parting bead of two adjacent two antenna units comprises magnetic negative metamaterial unit, magnetic negative metamaterial unit comprises two square spiral resonator cascades, the magnetic negative metamaterial unit that two square spiral resonator cascades formed is placed between two adjacent antenna units, play the effect of parting bead, improve the isolation while decoupling, the antenna unit includes two oscillators and the feed microstrip line of interval setting, two oscillators phase difference 180, every oscillator includes four radiation dielectric substrates that mutually support the interval and install at the feed line dielectric substrate, two adjacent radiation dielectric substrate face mutually perpendicular, be close to each radiation dielectric substrate face mutually parallel, be provided with metal patch on the radiation dielectric substrate face mutually, include four mutually parallel radiation dielectric substrates in every antenna unit, the same antenna patch of parallel connection antenna element and microstrip line that mutually support the parallel antenna element of each radiation substrate and feed line.
The antenna housing is fixed on the antenna housing bracket through mounting bolts.
The main port of the power divider adopts an SMP joint and is welded on a feeding circuit dielectric substrate, the main port of the 1-to-2 power divider microstrip feeding circuit on the feeding circuit dielectric substrate adopts the SMP joint, and only the SMP joint of the whole system needs to be welded.
The dielectric constants of the feed line dielectric substrate and the radiation dielectric substrate are 2-5.
The dielectric constants of the feed circuit dielectric substrate and the radiation dielectric substrate are 3.
And a parasitic unit is fixed at the top end of the vibrator, so that the bandwidth of the antenna is improved.
The parasitic unit is formed by square metal sheets.
The antenna unit upper cover be equipped with the radome, the radome is provided with the frequency selective surface on the inner wall that is located the oscillator directly over.
The frequency selective surface comprises a large circular ring and two intersected elliptical rings, the two intersected elliptical rings are nested in the large circular ring, so that the gain and the directivity of the antenna are improved, a circuit is added on the lower surface of the antenna housing, and the frequency selective surface (Frequency Selective Surfaces, FSS) is arranged in the radiation direction of an antenna unit and used as a housing or a coating of the antenna. Electromagnetic waves radiated by the antenna units are reflected between the FSS and the ground for multiple times, namely, amplitude addition weights are carried out among the units on the FSS, so that the radiation area is increased, which is equivalent to the increase of the aperture area of the antenna, the gain and the directivity of the antenna are increased, and the performance of the antenna is improved.
The metal patch and the feed microstrip line are of an integrated forming structure, and welding is not needed during assembly. The beneficial effects of the invention are as follows: the antenna unit realizes +/-45 DEG polarization through the vibrators matched with each other, and magnetic negative metamaterial is adopted as the isolation strip between adjacent antenna units, so that the decoupling purpose is achieved, and meanwhile, the isolation of the antenna is improved.
The bandwidth of the antenna can be improved after the parasitic element is added, and meanwhile, the antenna housing adopts a frequency selection surface, so that the directivity and the gain of the antenna are improved.
Drawings
Fig. 1 is a schematic diagram of a state of an array of antenna cells in the present application.
FIG. 2 is a diagram of the present application 1.
Fig. 3 is a schematic back view of fig. 1 of the present application.
Fig. 4 is a schematic diagram of the antenna in the present application.
Fig. 5 is an enlarged partial schematic view of the antenna unit of fig. 4 in the present application.
FIG. 6 is a schematic structural diagram of a magneto-negative metamaterial unit in the present application.
Fig. 7 is a schematic structural diagram of an antenna mounting parasitic element in the present application.
Fig. 8 is a schematic structural view of an antenna mounting frequency selective surface in the present application.
Fig. 9 is a schematic structural diagram of a frequency selective surface in the present application.
The graphic indicia: 1. the isolation strip, 2, the isolation area, 3, the feeding circuit dielectric substrate, 301, the metal ground, 302, the feeding microstrip line, 4, the vibrator, 401, the radiation dielectric substrate, 5, the antenna housing bracket, 6, a magneto-negative metamaterial unit, 601, two square spiral resonators, 7, a power divider, 8, a parasitic unit, 9, a frequency selective surface, 901, two crossed elliptical rings, 902 and a large circular ring.
Detailed Description
The specific embodiments shown in the drawings are as follows:
the 3D-MID technology array antenna comprises a feed circuit dielectric substrate 3, wherein one side surface of the feed circuit dielectric substrate 3 is provided with a metal ground 301, the metal ground 301 can replace a metal reflecting plate in a traditional antenna array, the number of parts of the antenna array is reduced, the volume and weight of the antenna array are greatly reduced, meanwhile, the reliable electrical performance is ensured, a plurality of isolation areas 2 distributed in an array form are formed on the other side of the feed circuit dielectric substrate 3 through isolation strips 1 in a surrounding manner, antenna units are arranged in the isolation areas 2, the isolation strips of two adjacent two antenna units are composed of magnetic negative metamaterial units 6, the magnetic negative metamaterial units 6 composed of two square spiral resonators 601 in a cascading manner are placed between two adjacent antenna units to play the role of the isolation strips, the decoupling is performed while the isolation is improved, meanwhile, the isolation effect of the magneto-negative metamaterial unit formed by cascading two square spiral resonators can be improved at the edge of the antenna unit, but the relative cost is high, the magneto-negative metamaterial unit is required to be selected according to the actual working condition, the magneto-negative metamaterial unit formed by cascading two square spiral resonators is not used as far as possible under the condition that the peripheral antenna unit is not affected, the cost is reduced, the antenna unit comprises two vibrators 4 and a feed microstrip line 302 which are arranged at intervals, the two vibrators 4 are 180 degrees out of phase, each vibrator 4 comprises four radiation medium substrates 401 which are mutually matched and arranged on a feed line medium substrate 3 at intervals, each radiation medium substrate 401 is rotationally adjusted according to the center point, finally, the adjacent two radiation medium substrates 401 are mutually perpendicular in surface, the two radiation medium substrates 401 are mutually parallel in surface, a metal patch is arranged on one surface of each radiation medium substrate 401, which is close to the radiation medium substrate 401 parallel to the radiation medium substrate 401, and copper is not covered on the other surface; each antenna unit comprises four mutually parallel radiation medium substrates 401, the mutually parallel radiation medium substrates 401 in each oscillator are connected with the same feed microstrip line 302, and the feed microstrip lines 302 connected on the mutually parallel two pairs of the mutually parallel radiation medium substrates 401 in the oscillators of the same antenna unit are connected with the same power divider 7.
The antenna housing is fixed on the antenna housing bracket 5 through mounting bolts, and the antenna housing is not drawn in the drawings in the application.
The main port of the power divider 7 adopts an SMP joint and is welded on a feeding circuit dielectric substrate, the main port of the microstrip feeding circuit of the one-to-two power divider on the feeding circuit dielectric substrate 3 adopts the SMP joint, and only the SMP joint of the whole system needs to be welded.
The dielectric constants of the feed line dielectric substrate 3 and the radiation dielectric substrate 401 are 2-5.
The dielectric constants of the feed line dielectric substrate 3 and the radiation dielectric substrate 401 are optimally selected to be 3.
And a parasitic unit 8 is fixed at the top end of the vibrator 4, so that the bandwidth of the antenna is improved.
The parasitic element 8 is formed by square metal sheets.
The antenna unit upper cover be equipped with the radome, the radome is provided with frequency selective surface 9 on the inner wall that is located the oscillator directly over.
The frequency selective surface 9 comprises a large circular ring 902 and two intersected elliptical rings 901, wherein the two intersected elliptical rings 901 are nested in the large circular ring 902, so that the gain and the directivity of the antenna are improved, a circuit is added on the lower surface of the antenna housing, and the frequency selective surface (Frequency Selective Surfaces, FSS) is placed in the radiation direction of an antenna unit and used as a cover or a coating of the antenna. Electromagnetic waves radiated by the antenna units are reflected between the FSS and the ground for multiple times, namely, amplitude addition weights are carried out among the units on the FSS, so that the radiation area is increased, which is equivalent to the increase of the aperture area of the antenna, the gain and the directivity of the antenna are increased, and the performance of the antenna is improved.
The metal patch and the feed microstrip line are of an integrated forming structure, and welding is not needed during assembly. The technical scheme and the embodiment of the invention are not limited, and the technical scheme and the embodiment which are equivalent or have the same effect as those of the technical scheme and the embodiment of the invention are all within the protection scope of the invention.
Claims (10)
1. The utility model provides a 3D-MID technique array antenna, includes the feed circuit dielectric substrate, and one side surface of feed circuit dielectric substrate is provided with metal ground, and the isolation area that forms a plurality of array distributions is surrounded through the parting bead on the opposite side of feed circuit dielectric substrate, is provided with antenna element in the isolation area, its characterized in that: the isolation strip of two adjacent antenna units consists of a magneto-negative metamaterial unit, the magneto-negative metamaterial unit consists of two square spiral resonators in cascade connection, the antenna unit comprises two vibrators and feed microstrip lines which are arranged at intervals, the phase difference of the two vibrators is 180 degrees, each vibrator comprises four radiation medium substrates which are mutually matched and arranged on the medium substrates of the feed line, the surfaces of the two adjacent radiation medium substrates are mutually perpendicular, the surfaces of the two opposite radiation medium substrates are mutually parallel, a metal patch is arranged on one surface, close to the radiation medium substrates which are parallel to the radiation medium substrates, of each antenna unit, the radiation medium substrates included in each antenna unit are divided into two groups, each group comprises four radiation medium substrates which are mutually parallel, the radiation medium substrates which are mutually parallel in each vibrator are connected with the same feed microstrip line, and the feed microstrip lines connected on the two pairs of mutually parallel radiation medium substrates in the vibrators of the same antenna unit are connected with the same power divider.
2. A 3D-MID technology array antenna according to claim 1, characterized in that: the antenna housing is fixed on the antenna housing bracket through mounting bolts.
3. A 3D-MID technology array antenna according to claim 1, characterized in that: and the main port of the power divider adopts an SMP joint and is welded on the dielectric substrate of the feed line.
4. A 3D-MID technology array antenna according to claim 1, characterized in that: the dielectric constants of the feed line dielectric substrate and the radiation dielectric substrate are 2-5.
5. The 3D-MID technology array antenna of claim 4, wherein: the dielectric constants of the feed circuit dielectric substrate and the radiation dielectric substrate are 3.
6. A 3D-MID technology array antenna according to any one of claims 1-5, characterized in that: and a parasitic unit is fixed at the top end of the vibrator.
7. The 3D-MID technology array antenna of claim 6, wherein: the parasitic unit is formed by square metal sheets.
8. A 3D-MID technology array antenna according to any one of claims 1-5 or 7, the method is characterized in that: the antenna unit upper cover be equipped with the radome, the radome is provided with the frequency selective surface on the inner wall that is located the oscillator directly over.
9. The 3D-MID technology array antenna of claim 8, wherein: the frequency selective surface comprises a large circular ring and two intersected elliptical rings, and the two intersected elliptical rings are nested in the large circular ring.
10. A 3D-MID technology array antenna according to claim 1, characterized in that: the metal patch and the feed microstrip line are of an integrated forming structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810676982.4A CN108987947B (en) | 2018-06-27 | 2018-06-27 | 3D-MID technology array antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810676982.4A CN108987947B (en) | 2018-06-27 | 2018-06-27 | 3D-MID technology array antenna |
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| Publication Number | Publication Date |
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| CN108987947A CN108987947A (en) | 2018-12-11 |
| CN108987947B true CN108987947B (en) | 2024-04-16 |
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| CN201810676982.4A Active CN108987947B (en) | 2018-06-27 | 2018-06-27 | 3D-MID technology array antenna |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110165397B (en) * | 2019-05-22 | 2024-01-05 | 广东通宇通讯股份有限公司 | Plastic electroplating Massive MIMO antenna |
| CN113692677B (en) * | 2020-02-28 | 2023-02-03 | 华为技术有限公司 | Antenna housing and detection device |
| WO2022000812A1 (en) * | 2020-06-30 | 2022-01-06 | 瑞声声学科技(深圳)有限公司 | Antenna array |
| WO2022000622A1 (en) * | 2020-07-01 | 2022-01-06 | 瑞声声学科技(深圳)有限公司 | Isolation plate structure, antenna array, and base station |
| CN112467368A (en) * | 2020-11-10 | 2021-03-09 | 武汉虹信科技发展有限责任公司 | Vibrator power division module and Massive MIMO antenna |
| CN115775972A (en) * | 2021-09-06 | 2023-03-10 | 中兴通讯股份有限公司 | Antenna element and antenna array |
| CN114498057A (en) * | 2022-02-25 | 2022-05-13 | 潍坊歌尔电子有限公司 | Antenna structure and electronic equipment |
| CN114843760B (en) * | 2022-04-12 | 2023-08-22 | 上海大学 | 5G dual-frequency high-isolation MIMO antenna based on metamaterial |
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| CN107785661A (en) * | 2017-10-18 | 2018-03-09 | 哈尔滨工程大学 | A kind of uncoupling array antenna based on double frequency Meta Materials |
| CN208570945U (en) * | 2018-06-27 | 2019-03-01 | 广东通宇通讯股份有限公司 | A kind of 3D-MID technology array antenna |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1035663C2 (en) * | 2008-07-04 | 2010-01-05 | Thales Nederland Bv | A method for manufacturing a three-dimensional multi-layered (multi-layer) interconnection facility. |
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| US5661494A (en) * | 1995-03-24 | 1997-08-26 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | High performance circularly polarized microstrip antenna |
| CN103036073A (en) * | 2013-01-05 | 2013-04-10 | 广东通宇通讯股份有限公司 | Dual-frequency dual-polarized antenna |
| CN106848583A (en) * | 2017-01-20 | 2017-06-13 | 哈尔滨工程大学 | A kind of three-dimensional metamaterial decoupling arrangements for micro-strip array antenna |
| CN106961016A (en) * | 2017-05-08 | 2017-07-18 | 江苏亨鑫科技有限公司 | A kind of polarization and four different unit mimo antennas of directional diagram |
| CN107302130A (en) * | 2017-05-11 | 2017-10-27 | 广东通宇通讯股份有限公司 | Aerial array, Anneta module and its microband antenna unit |
| CN107785661A (en) * | 2017-10-18 | 2018-03-09 | 哈尔滨工程大学 | A kind of uncoupling array antenna based on double frequency Meta Materials |
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| CN108987947A (en) | 2018-12-11 |
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