CN208460963U - Broad-band antenna applied to the mobile terminal 5G - Google Patents
Broad-band antenna applied to the mobile terminal 5G Download PDFInfo
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- CN208460963U CN208460963U CN201821171071.8U CN201821171071U CN208460963U CN 208460963 U CN208460963 U CN 208460963U CN 201821171071 U CN201821171071 U CN 201821171071U CN 208460963 U CN208460963 U CN 208460963U
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Abstract
The utility model discloses a kind of broad-band antenna applied to the mobile terminal 5G, the following four-layer structures including sequence setting from top to bottom: first layer structure, including top layer of patches structure；Second layer structure, including metal strap, metal strap are used to microwave signal being coupled to the top layer of patches structure, generate two modes of resonance；Third layer structure, for the big stratum of metal for having opened up a round gap；Four-layer structure, including feed structure, the feed structure are connect by wearing the metal throuth hole in the round gap with the metal strap.The broad-band antenna of the utility model solves the problems, such as that existing antenna technology is difficult to solve low section and broadband simultaneously, keeps antenna entirety section height lower, realize wider spectral bandwidth covering, and there is good radiance, directional diagram is symmetrical, and cross polarization is small in frequency band.
Description
Technical field
The utility model relates to the communications field more particularly to a kind of broad-band antennas applied to the mobile terminal 5G.
Background technique
5th third-generation mobile communication technology is by making full use of millimeter wave frequency band (such as 28GHz, 39GHz and 60GHz)
The message transmission rate of 1-10Gb/s may be implemented in bandwidth resources.But in millimeter wave frequency band, the transmission path loss of electromagnetic wave
It dramatically increases.In mobile terminal, to guarantee communication quality and reducing power consumption, it is possible to provide the phased-array antenna of direct scan wave beam
Technology has obtained most commonly used concern.Currently, the phased array antenna technology of mobile terminal considers such as Fig. 1 there are many system is realized
Shown in a kind of AiP of great application potential (Antenna in Package) design scheme, radio frequency chip and antenna distinguish position
In two surfaces up and down of medium support plate, the power feed inputs of chip output pin and antenna can be carried out by round gap
High efficiency connection.
The program is applied to the mobile phone mobile terminal of millimeter wave frequency band work, and Antenna Design therein must fully consider low section
With broadband both sides design requirement, by taking 28GHz frequency range as an example: 1) mobile terminal height is pursued frivolous, adds high-precision chip
The processing of package substrate limits, and antenna part need to keep very low section height, in the premise item using low dielectric constant base board
Under part, often with 0.8mm~1mm (0.06 λ0~0.08 λ0, λ0For the air medium wavelength at design center frequency) it is threshold limit value；
2) it is planned according to 5G frequency spectrum, antenna need to meet the frequency spectrum covering of 24.75-27.5GHz (relative bandwidth 15%).For such milli
The Antenna Design of the mobile terminal AiP of meter wave frequency band, only a small amount of cutting edge technology is reported at present.For example, can be by electromagnetic dipole
Scheme is applied to such Antenna Design, but electromagnetic dipole antenna is extremely sensitive for section height, is 0.06 in section height
λ0Or be difficult to realize in lower situation 15% or more broadband covering；Furthermore also have with cutler feed combination parasitic element
Micro-strip paster antenna designing technique, the technology are equally difficult to meet above-mentioned low section and two, broadband design requirement simultaneously.
In brief, the Antenna Design in millimeter wave frequency band AiP scheme faces sets of both low section and broadband covering
Meter demand.Currently, rarely having novel report about the Antenna Design in such millimeter wave frequency band mobile terminal AiP scheme.It is newest
Some results of study or be difficult to combine above-mentioned low section and design requirement of both broadband or want to processing technology
It asks excessively high, leads to dramatically increasing for cost.
Utility model content
The technical problem to be solved by the present invention is to above-mentioned for the prior art is difficult to combine above-mentioned low cut open
The defect of design requirement or higher cost of both face and broadband, provides a kind of broad-band antenna applied to the mobile terminal 5G.
The technical scheme adopted by the utility model to solve the technical problem is as follows: constructing a kind of width applied to the mobile terminal 5G
Band antenna, the following four-layer structure including sequence setting from top to bottom:
First layer structure, including top layer of patches structure；
Second layer structure, including metal strap, the metal strap are used to microwave signal being coupled to the top layer of patches
Structure generates two modes of resonance；
Third layer structure, for the big stratum of metal for having opened up a round gap；
Four-layer structure, including feed structure, the feed structure by wear the metal throuth hole in the round gap with
The metal strap connection.
In antenna described in the utility model, the top layer of patches structure includes two rectangle gold with default spacing
Belong to patch, described two rectangular metal patches are arranged side by side along the direction for being parallel to the metal strap.
In antenna described in the utility model, the first layer structure further includes that the top layer of patches structure is arranged in top surface
First layer medium substrate, the second layer structure further includes the second layer medium substrate that the metal strap is arranged in top surface, institute
Stating four-layer structure includes the third layer medium substrate that the feed structure is arranged in bottom surface；
Wherein, first layer medium substrate and the fitting of second layer medium substrate, the big stratum of metal is respectively with described second
Layer medium substrate and the fitting of third layer medium substrate, the metal throuth hole penetrate the third layer medium substrate and the second layer
Medium substrate.
In antenna described in the utility model, the first layer medium substrate, second layer medium substrate, metal the earth
Layer, third layer medium substrate shape are identical and are in rectangle, and the metal strap is set to the center of second layer medium substrate, and
The extending direction of metal strap is parallel with the one pair of them side of the second layer medium substrate.
In antenna described in the utility model, the feed structure includes microstrip line, the microstrip line and the metal
Tape is parallel；Wherein, the head end of the microstrip line is located at the edge of the third layer medium substrate, defeated for connecting radio frequency chip
Exit port；The end of the microstrip line is located at the underface in the round gap.
The broad-band antenna applied to the mobile terminal 5G of the utility model, has the advantages that the width of the utility model
Band antenna, solves the problems, such as that existing antenna technology is difficult to solve low section and broadband simultaneously, keeps antenna entirety section high
It spends lower, realizes the covering of wider spectral bandwidth, and there is good radiance in frequency band, directional diagram is symmetrical, intersects
It polarizes small.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer:
Fig. 1 is a kind of structural schematic diagram of AiP scheme；
Fig. 2 is the schematic diagram of the section structure of the antenna provided in the utility model specific embodiment；
Fig. 3 is the floor map of the first layer structure of the antenna provided in the utility model specific embodiment；
Fig. 4 is the floor map of the second layer structure of the antenna provided in the utility model specific embodiment；
Fig. 5 is the floor map of the third layer structure of the antenna provided in the utility model specific embodiment；
Fig. 6 is the floor map of the four-layer structure of the antenna provided in the utility model specific embodiment；
Fig. 7 is the transmission response and rdaiation response schematic diagram of the antenna provided in the utility model specific embodiment；
Fig. 8 is the emulation directional diagram of the antenna provided in the utility model specific embodiment.
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The exemplary embodiments of the utility model are given in attached drawing.But the utility model can come in many different forms in fact
It is existing, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes public affairs to the utility model
It is more thorough and comprehensive to open content.
It should be noted that term as used herein " vertically ", " horizontal " and similar statement are intended merely to
The purpose of explanation.Unless otherwise defined, all technical and scientific terms used herein and the skill for belonging to the utility model
The normally understood meaning of the technical staff in art field is identical.Terminology used in the description of the utility model herein is only
It is the purpose in order to describe specific embodiment, it is not intended that in limitation the utility model.
" first ", " second " used in this specification etc. includes that the term of ordinal number can be used for illustrating various constituent elements,
But these constituent elements are not limited by these terms.It is only that using the purpose of these terms and distinguishes a constituent element
In other constituent elements.For example, the first constituent element can be named under the premise of not departing from the interest field of the utility model
For the second constituent element, similarly, the second constituent element can also be named as the first constituent element.
With reference to Fig. 2-5, the broad-band antenna applied to the mobile terminal 5G in a specific embodiment of the utility model, including
The following four-layer structure being sequentially arranged from top to bottom in vertical direction:
First layer structure 1 is pasted including first layer medium substrate and the top layer for being set to first layer medium substrate top surface
Chip architecture 5；
Second layer structure 2, including second layer medium substrate and the metal tape for being set to first layer medium substrate top surface
Item 6, the metal strap 6 are used to microwave signal being coupled to the top layer of patches structure 5, generate two modes of resonance；
Third layer structure 3, for the big stratum 8 of metal for having opened up a round gap 7；
Four-layer structure 4, including third layer medium substrate and the feed knot for being set to third layer medium substrate bottom surface
Structure, the feed structure are connect with metal throuth hole 10, and metal throuth hole 10 successively penetrates the third layer medium substrate, the gold
After belonging to the round gap 7 on big stratum 8, the second layer medium substrate, then it connect with the metal strap 6.Wherein, metal throuth hole
10 be actually to be formed by the outer surface of metal copper post.
Wherein, the big stratum 8 of the first layer medium substrate, second layer medium substrate, metal, third layer medium substrate shape
It is identical and be in rectangle, and the projection of horizontal plane be overlapped.First layer medium substrate and the fitting of second layer medium substrate, the gold
Belong to big stratum 8 to be bonded with the second layer medium substrate and third layer medium substrate respectively, the metal throuth hole 10 penetrates described
Third layer medium substrate and the second layer medium substrate.
With reference to Fig. 3, specifically, the top layer of patches structure 5 includes two rectangular metal patches with default spacing, institute
Two rectangular metal patches are stated to be arranged side by side along the direction for being parallel to the metal strap 6.The setting of each rectangular metal patch
Direction is consistent with the setting direction of corresponding medium substrate namely the respective side of the side of rectangular metal patch and medium substrate
In parallel.
With reference to Fig. 4, the metal strap 6 is set to the center of second layer medium substrate, and the extending direction of metal strap 6
It is parallel with the one pair of them side of the second layer medium substrate.
With reference to Fig. 6, the feed structure includes microstrip line 9, and the microstrip line 9 is parallel with the metal strap 6.Wherein,
The head end of the microstrip line 9 is located at the edge of the third layer medium substrate, for connecting radio frequency chip output port；It is described micro-
End with line 9 is located at the underface in the round gap 7, and metal throuth hole 10 connects end and the metal tape of the microstrip line 9
Item 6.
The present embodiment makes to locate between the two due to introducing narrow metal tape item 6 with two metal patches of appropriate spacing
In weak-coupling state (under the conditions of i.e. same section height, compared to conventional metals patch, it is above-mentioned couple between the two it is weaker), reach
To the effect for realizing that the two is mutually coupled in the form of low section.Metal strap 6 is fed by microstrip line 9, it is then golden
Belong to tape 6 and microwave signal is coupled to two rectangular metal patches, generates two modes of resonance, reach the effect of antenna wideband operation
Fruit.
Illustrate the effect of the antenna of the utility model by taking 28GHz hot spot frequency range as an example below, it is to be understood that this is practical
Novel antenna is not limited only to 28GHz frequency range, can be applied to other frequency ranges of 5G.The transmission of the structure of antenna such as Fig. 2-6, antenna are rung
It should be as shown in Figure 7 with rdaiation response, it is seen that its 10-dB coupling bandwidth is 16%, covers the 5G of 24.75-27.5GHz well
Hot spot frequency range.Gain is 6.01-6.48dBi in frequency band.Fig. 8 is the antenna measurement directional diagram at 24.75GHz and 27.5GHz,
The picture left above is the face 24.75GHz yoz directional diagram in Fig. 8, and top right plot is the face 24.75GHz xoz directional diagram, and lower-left figure is
The face 27.5GHz yoz directional diagram, bottom-right graph are the face 27.5GHz xoz directional diagrams.It can be seen that the cross polarization of antenna is in 3-dB wave beam
It is better than 33dB in range.It is 3.4 that medium substrate in present case, which is all using dielectric constant, the base that loss angle is 0.004
Plate, the thickness of first layer to third layer medium substrate is successively are as follows: 0.6mm, 0.1mm, 0.1mm, the big stratum 8 of the metal of entire antenna
It is above with a thickness of 0.7mm, section height is 0.06 λ0。
In conclusion the broad-band antenna applied to the mobile terminal 5G of the utility model, have the advantages that practical
Novel broad-band antenna solves the problems, such as that existing antenna technology is difficult to solve low section and broadband simultaneously, keeps antenna whole
Body section height is lower, realizes wider spectral bandwidth covering, and have good radiance, directional diagram pair in frequency band
Claim, cross polarization is small.
The embodiments of the present invention are described above in conjunction with attached drawing, but the utility model is not limited to
The specific embodiment stated, the above mentioned embodiment is only schematical, rather than restrictive, this field it is common
Technical staff is not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model
Under, many forms can be also made, these are belonged within the protection of the utility model.
Claims (5)
1. a kind of broad-band antenna applied to the mobile terminal 5G, which is characterized in that following four layers including sequence setting from top to bottom
Structure:
First layer structure, including top layer of patches structure；
Second layer structure, including metal strap, the metal strap are used to microwave signal being coupled to the top layer of patches structure,
Generate two modes of resonance；
Third layer structure, for the big stratum of metal for having opened up a round gap；
Four-layer structure, including feed structure, the feed structure by wear the metal throuth hole in the round gap with it is described
Metal strap connection.
2. antenna according to claim 1, which is characterized in that the top layer of patches structure includes two with default spacing
A rectangular metal patch, described two rectangular metal patches are arranged side by side along the direction for being parallel to the metal strap.
3. antenna according to claim 1, which is characterized in that the first layer structure further includes that the top layer is arranged in top surface
The first layer medium substrate of paster structure, the second layer structure further include the second layer medium that the metal strap is arranged in top surface
Substrate, the four-layer structure include the third layer medium substrate that the feed structure is arranged in bottom surface；
Wherein, first layer medium substrate and the fitting of second layer medium substrate, the big stratum of metal are situated between with the second layer respectively
Matter substrate and the fitting of third layer medium substrate, the metal throuth hole penetrate the third layer medium substrate and the second layer medium
Substrate.
4. antenna according to claim 3, which is characterized in that the first layer medium substrate, second layer medium substrate, gold
It is identical and in rectangle to belong to big stratum, third layer medium substrate shape, the metal strap is set to second layer medium substrate
Center, and the extending direction of metal strap is parallel with the one pair of them side of the second layer medium substrate.
5. antenna according to claim 3, which is characterized in that the feed structure includes microstrip line, the microstrip line with
The metal strap is parallel；Wherein, the head end of the microstrip line is located at the edge of the third layer medium substrate, can be used for connecting
Radio frequency chip output port；The end of the microstrip line is located at the underface in the round gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821171071.8U CN208460963U (en) | 2018-07-24 | 2018-07-24 | Broad-band antenna applied to the mobile terminal 5G |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821171071.8U CN208460963U (en) | 2018-07-24 | 2018-07-24 | Broad-band antenna applied to the mobile terminal 5G |
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| Publication Number | Publication Date |
|---|---|
| CN208460963U true CN208460963U (en) | 2019-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821171071.8U Active CN208460963U (en) | 2018-07-24 | 2018-07-24 | Broad-band antenna applied to the mobile terminal 5G |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109004344A (en) * | 2018-07-24 | 2018-12-14 | 南通至晟微电子技术有限公司 | Broad-band antenna applied to the mobile terminal 5G |
| CN111786131A (en) * | 2020-08-10 | 2020-10-16 | 南通大学 | Broadband quasi-end-fire microstrip yagi antenna |
| CN112103665A (en) * | 2020-11-09 | 2020-12-18 | 成都天锐星通科技有限公司 | Radio frequency feed network, phased array antenna and communication equipment |
| US11978964B2 (en) | 2019-11-26 | 2024-05-07 | Huawei Technologies Co., Ltd. | Antenna structure, circuit board with antenna structure, and communications device |
-
2018
- 2018-07-24 CN CN201821171071.8U patent/CN208460963U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109004344A (en) * | 2018-07-24 | 2018-12-14 | 南通至晟微电子技术有限公司 | Broad-band antenna applied to the mobile terminal 5G |
| US11978964B2 (en) | 2019-11-26 | 2024-05-07 | Huawei Technologies Co., Ltd. | Antenna structure, circuit board with antenna structure, and communications device |
| CN111786131A (en) * | 2020-08-10 | 2020-10-16 | 南通大学 | Broadband quasi-end-fire microstrip yagi antenna |
| CN112103665A (en) * | 2020-11-09 | 2020-12-18 | 成都天锐星通科技有限公司 | Radio frequency feed network, phased array antenna and communication equipment |
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