CN109301474B - Mobile phone antenna suitable for 5G millimeter wave communication system - Google Patents
Mobile phone antenna suitable for 5G millimeter wave communication system Download PDFInfo
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- CN109301474B CN109301474B CN201811344821.1A CN201811344821A CN109301474B CN 109301474 B CN109301474 B CN 109301474B CN 201811344821 A CN201811344821 A CN 201811344821A CN 109301474 B CN109301474 B CN 109301474B
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- 238000004891 communication Methods 0.000 title claims abstract description 25
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000003491 array Methods 0.000 claims abstract description 7
- 238000010295 mobile communication Methods 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 4
- 229910003460 diamond Inorganic materials 0.000 abstract description 2
- 239000010432 diamond Substances 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method 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
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
-
- 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
- H01Q21/00—Antenna arrays or systems
-
- 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
-
- 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
- H01Q21/00—Antenna arrays or systems
- H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
- Support Of Aerials (AREA)
Abstract
The invention discloses a mobile phone antenna suitable for a 5G millimeter wave communication system, which consists of two parallel antenna arrays, wherein each array consists of five diamond-shaped annular antenna units with the same size; the vertexes of each row of antenna units are connected by two parallel transmission lines, the two rows of antenna arrays are connected by a connecting line, and the connecting line is provided with a coaxial connector which feeds corresponding power to the mobile phone antenna; the mobile phone antenna is arranged at the upper right corner of the upper layer of the mobile phone substrate, the lower layer of the mobile phone substrate is a ground plane, and two clearance areas are reserved at the upper left corner and the lower right corner of the ground plane. The invention uses the diamond annular antenna unit array, has the advantages of wide band coverage, high antenna gain, low antenna profile and the like, meets the frequency band requirement of a fifth generation mobile communication system of millimeter wave frequency band, and solves the problem of insufficient design space reserved for the antenna in the mobile phone compared with the mobile phone antenna of the 4G communication system researched in the past.
Description
Technical Field
The invention belongs to the technical field of mobile phone antennas, and particularly relates to a mobile phone antenna suitable for a 5G millimeter wave communication system, in particular to a mobile phone antenna applicable to a fifth generation mobile communication system of 28GHz and 38GHz millimeter wave systems.
Background
With the rapid development of wireless communication systems, data traffic has exploded extremely, so that the fourth generation mobile communication network is evolving towards the fifth generation mobile communication network (5G), and thus 5G has become a hot spot of research today. For example, the technical fields of internet of things, internet of vehicles, multiple input multiple output and the like have begun to be fused with a 5G communication system, which will enable hundreds of millions of mobile phones to be connected into a platform of the 5G network, and in future life, applications of intelligent power grids, intelligent medical treatment, intelligent transportation and the like will depend on big data information of the 5G system, so that the system becomes more intelligent.
As the space reserved for antenna design by the mobile phone terminal is smaller and smaller, the mobile phone antenna is continuously evolved towards the direction of the compact structure. In a mobile communication system, a conventional mobile phone antenna such as a planar inverted-F structure is gradually replaced with other structures. The loop antenna has wider bandwidth, low profile structure and better radiation performance, so the loop antenna can be a substitute for the mobile phone antenna of the fifth generation mobile communication system.
Because most of the currently used wireless spectrum resources are already used for the third generation and fourth generation communication systems, the spectrum resources available for the 5G system are limited, and the extremely high-speed data downloading rate specified by the 5G communication protocol standard cannot be met, the 5G communication system can use the millimeter wave frequency band resource of 28-300GHz, and at the moment, electromagnetic waves are converted from centimetre waves to millimeter waves with shorter wavelength, so that the 28-300GHz spectrum has the advantage of richer resources, and the shorter wavelength of the 28-300GHz spectrum is more beneficial to designing antennas in a narrow mobile phone internal space.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problem to be solved by the invention is to provide a 28GHz and 38GHz dual-band 5G mobile phone antenna working in a millimeter wave communication band.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a mobile phone antenna suitable for 5G millimeter wave communication system is composed of two parallel antenna arrays, each antenna is composed of five diamond-shaped annular antenna units with the same size; the vertexes of each row of antenna units are connected by two parallel transmission lines, the two rows of antenna arrays are connected by a connecting line, and the connecting line is provided with a coaxial connector which feeds corresponding power to the mobile phone antenna; the mobile phone antenna is arranged at the upper right corner of the upper layer of the mobile phone substrate, the lower layer of the mobile phone substrate is a ground plane, and two clearance areas are reserved at the upper left corner and the lower right corner of the ground plane.
In order to optimize the technical scheme, the specific measures adopted further comprise:
the length of the inner edge of the antenna unit is 3.6mm, and the width of the antenna unit is 0.2mm; the length of the transmission line is 3.4mm, the width is 0.2mm, and the gap size between the transmission lines is 0.2mm; the length of the connecting line is 3.3mm and the width is 0.6mm.
The coaxial connector described above was 2.92mm long.
The overall size of the mobile phone antenna is 39.82mm multiplied by 15.55mm.
The dimensions of the above-mentioned clearance areas are 28mm×12mm and 40mm×10mm, respectively.
The size of the mobile phone substrate is 136mm multiplied by 68.8mm multiplied by 0.813mm, namely the size of the mobile phone circuit substrate of 5.5 inches.
The above-mentioned headroom area is used for placing antennas of other network systems.
The antennas of other network systems are GPS, LTE or WWAN antennas.
The mobile phone antenna and the mobile phone substrate are made of Rogers4003C plates with dielectric constants of 3.55 and electric loss tangents of 0.0027.
The invention has the following beneficial effects:
first: the antenna has the size of 39.82mm multiplied by 15.55mm, is small, and solves the problem that the design space reserved for the antenna in the mobile phone is insufficient.
Second,: compared with the mobile phone antenna of the 4G communication system which is researched in the past, the antenna has simple structural design and is a novel mobile phone antenna facing the fifth generation mobile communication system.
Third,: the diamond annular antenna unit array has the advantages of wide band coverage, high antenna gain, low antenna profile and the like, and meets the frequency band requirement of a fifth generation mobile communication system of millimeter wave frequency band.
Drawings
FIG. 1 is an overall schematic of the present invention together with a mobile phone substrate;
FIG. 2 is a detailed block diagram of the present invention;
FIG. 3 is a graph of return loss in the 28GHz and 38GHz bands of the present invention;
FIG. 4 is a graph of gain versus radiation efficiency for the 28GHz and 38GHz bands in accordance with the present invention;
FIG. 5 is a side view of the present invention at xoz;
fig. 6 is a side view of the invention at yoz.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Referring to fig. 1, the mobile phone antenna suitable for the 5G millimeter wave communication system of the present invention has an overall size of 39.82mm×15.55mm, and is placed at the upper right corner of the upper layer of the mobile phone substrate, where the size of the mobile phone substrate is 136mm×68.8mm×0.813mm, and a Rogers4003C plate with a dielectric constant of 3.55 and an electric loss tangent of 0.0027 is selected, and the size of the substrate is the size of the 5.5 inch mobile phone circuit substrate. The lower layer of the mobile phone substrate is a ground plane, two clearance areas are reserved at the upper left corner and the lower right corner of the ground plane, the sizes of the clearance areas are 28mm multiplied by 12mm and 40mm multiplied by 10mm respectively, and antennas of other network systems can be placed in the two clearance areas when necessary, for example: GPS/LTE/WWAN, etc.
Referring to fig. 2, the mobile phone antenna suitable for the 5G millimeter wave communication system of the present invention is composed of two parallel antenna arrays, each antenna array is composed of five diamond-shaped annular antenna units with the same size, the inner side length L1 of the annular unit is 3.6mm, and the width W1 is 0.2mm; the vertexes of the antenna units in each row are connected by two parallel transmission lines, the line length L2 of the transmission lines is 3.4mm, and the width W2 is 0.2mm; the two rows of antenna arrays are connected by a connecting line, the length L3 of the connecting line is 3.3mm, the width W3 is 0.6mm, and the Gap size between the connecting lines is 0.2mm; the connecting wire is provided with a coaxial connector with the length of 2.92mm, and the coaxial connector carries out corresponding feed for the mobile phone antenna.
Fig. 3 is a return loss diagram of the invention in 28GHz and 38GHz frequency bands, and fig. 3 shows that the invention can well cover 27-30GHz and 34-40GHz, thereby greatly meeting the frequency band requirement of millimeter wave communication 5G.
Fig. 4 is a graph of gain and radiation efficiency in 28GHz and 38GHz bands according to the present invention, where the gain variation range in the 28GHz band is 16.68-20.56dBi, the gain variation range in the 38GHz band is 6.0-8.44dBi, and the radiation efficiency in both bands is greater than 90%.
Fig. 5 and 6 are diagrams of the planes xoz and yoz of the present invention at 28GHz and 38GHz frequency, respectively, and tests show that the mobile phone antenna of the present invention has good directivity performance.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the invention without departing from the principles thereof are intended to be within the scope of the invention as set forth in the following claims.
Claims (9)
1. The utility model provides a cell-phone antenna suitable for 5G millimeter wave communication system which characterized in that: each row of antennas consists of five diamond-shaped annular antenna units with the same size; the vertexes of each row of antenna units are connected by two parallel transmission lines, the two rows of antenna arrays are connected by a connecting line, a coaxial connector is arranged on the connecting line, and the coaxial connector carries out corresponding feed for the mobile phone antenna; the mobile phone antenna is arranged at the upper right corner of the upper layer of the mobile phone substrate, the lower layer of the mobile phone substrate is a ground plane, and two clearance areas are reserved at the upper left corner and the lower right corner of the ground plane.
2. A handset antenna suitable for use in a 5G millimeter wave communication system as defined in claim 1, wherein: the length (L1) of the inner edge of the antenna unit is 3.6mm, and the width W1 is 0.2mm; the length (L2) of the transmission line is 3.4mm, the width W2 is 0.2mm, and the Gap size between the transmission lines is 0.2mm; the length (L3) of the connecting line is 3.3mm, and the width W3 is 0.6mm.
3. A handset antenna adapted for use in a 5G millimeter wave communication system as defined in claim 2, wherein: the coaxial connector is 2.92mm long.
4. A handset antenna adapted for use in a 5G millimeter wave communication system as defined in claim 3, wherein: the overall size of the mobile phone antenna is 39.82mm multiplied by 15.55mm.
5. A handset antenna adapted for use in a 5G millimeter wave communication system as defined in claim 4, wherein: the dimensions of the clearance areas are 28mm by 12mm and 40mm by 10mm, respectively.
6. A handset antenna adapted for use in a 5G millimeter wave communication system as defined in claim 5, wherein: the size of the mobile phone substrate is 136mm multiplied by 68.8mm multiplied by 0.813mm, namely the size of the mobile phone circuit substrate of 5.5 inches.
7. A handset antenna suitable for use in a 5G millimeter wave communication system as defined in claim 1, wherein: and the headroom area is provided with antennas of other network systems.
8. A handset antenna adapted for use in a 5G millimeter wave communication system as defined in claim 7, wherein: the antennas of other network systems are GPS, LTE or WWAN antennas.
9. A handset antenna according to any one of claims 1-8 adapted for use in a 5G millimeter wave communication system, wherein: the mobile phone antenna and the mobile phone substrate are made of Rogers4003C plates with dielectric constants of 3.55 and electric loss tangents of 0.0027.
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CN201811344821.1A CN109301474B (en) | 2018-11-13 | 2018-11-13 | Mobile phone antenna suitable for 5G millimeter wave communication system |
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CN201811344821.1A CN109301474B (en) | 2018-11-13 | 2018-11-13 | Mobile phone antenna suitable for 5G millimeter wave communication system |
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CN109301474B true CN109301474B (en) | 2023-12-01 |
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Families Citing this family (1)
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CN111969323B (en) * | 2019-05-20 | 2023-02-28 | 中兴通讯股份有限公司 | Antenna system and terminal |
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