CN208862174U - 5G millimeter wave broadband differential antennae - Google Patents
5G millimeter wave broadband differential antennae Download PDFInfo
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- CN208862174U CN208862174U CN201821776122.XU CN201821776122U CN208862174U CN 208862174 U CN208862174 U CN 208862174U CN 201821776122 U CN201821776122 U CN 201821776122U CN 208862174 U CN208862174 U CN 208862174U
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Abstract
The utility model discloses a kind of 5G millimeter wave broadband differential antennaes, it include: the top level structure for being set to top layer medium substrate upper surface, including metal band and two groups of metal patch resonators of metal band two sides are symmetrically distributed in, metal band is used to microwave signal being coupled to two groups of metal patch resonators to generate required mode of resonance；The interlayer structure being set between underlying dielectric upper surface of base plate and top layer medium substrate lower surface, there are two the metal of through-hole the earth to open up in thickness direction for the interlayer structure；It is set to the fabric of underlying dielectric base lower surface, including two feed structures, two feed structures are connect via two metal throuth holes for passing through two through-holes with the metal band respectively, to carry out symmetric feeds to the metal band, the section of the utility model is low, simple with wide and structure, demand of the 5th third-generation mobile communication technology to bandwidth is met, meanwhile, this antenna cross-polarization is low, directional diagram is symmetrical.
Description
Technical field
The utility model relates to the communications field more particularly to a kind of 5G millimeter wave broadband differential antennaes.
Background technique
Demand with the communications field to high transfer rate and wide bandwidth constantly increases, the 5th third-generation mobile communication technology towards
High band development, part service band cover millimeter wave frequency band.It is smaller in millimeter wave frequency band wavelength, therefore difference front ends of millimeter waves
The actual physical size of system is smaller, and differential system can effectively improve the stability and noise resisting ability of receive-transmit system, because
This provides feasibility and necessity for millimeter wave differential system.Millimeter wave differential antennae is the important set of millimeter wave differential system
It at part, can effectively inhibit the transmitting of common-mode noise, improve cross polarization inhibition and port isolation, and can have with differential system
It imitates direct-connected, avoids differential signal and single-ended signal conversion circuit i.e. balun.In this context, a broadband day is designed
Line can meet the millimeter wave frequency band demand of the 5th third-generation mobile communication technology, have weight for the development of wireless communication technique
Want meaning.
At present about the report of millimeter wave differential antennae.Portion of techniques using substrate integration wave-guide to paster antenna into
Row double flute feed, the substrate integration wave-guide work in TE20Mode forms reverse phase electric field on double flute, therefore forms differential antennae effect
Fruit, but this kind of antenna structure complexity, at high cost and narrower bandwidth only have 9%, are not able to satisfy most of Millimeter Wave Applications.It is another
Portion of techniques feeds to form millimeter wave differential antennae to double-layer paster using difference micro-strip to by double flute, but slots formation
Backward radiation needs extra process and radiator is made of multiple-layered patches, therefore structure level number is more, and structure is complicated, in cost
It rises.
Utility model content
The technical problem to be solved by the present invention is to above-mentioned for the prior art uses substrate integration wave-guide double flute
Fed patch antenna technology or difference micro-strip be complicated to antenna structure existing for such technologies such as double flute feed multiple-layered patches technology,
The reasons such as at high cost or narrower bandwidth and the defect of the popularization and application that is unfavorable for 5G millimeter wave antenna, it is wide to provide a kind of 5G millimeter wave
Band differential antennae.
The technical scheme adopted by the utility model to solve the technical problem is as follows: constructing a kind of 5G millimeter wave broadband difference day
Line, comprising:
It is set to the top level structure of top layer medium substrate upper surface, including metal band and is symmetrically distributed in metal band
Two groups of metal patch resonators of two sides, metal band be used for by microwave signal be coupled to two groups of metal patch resonators with
Mode of resonance required for generating；
The interlayer structure being set between underlying dielectric upper surface of base plate and top layer medium substrate lower surface, the centre
There are two the metal of through-hole the earth to open up in thickness direction for layer structure；
It is set to the fabric of underlying dielectric base lower surface, including two feed structures, two feed structure difference
It is connect via two metal throuth holes for passing through two through-holes with the metal band, symmetrically to be presented the metal band
Electricity.
In one embodiment of the utility model, in the line between two feed ends of described two feed structures
Heart point is overlapped with the projection of the central point of metal band.
In one embodiment of the utility model, the through-hole is circular through hole.
In one embodiment of the utility model, the throwing at the metal band center and top layer medium substrate center
Shadow is overlapped, and an opposite side of the top layer medium substrate is located at metal band two sides and symmetrical about the metal band,
Each group of metal patch resonator includes two metal patches, and described two metal patches are along the side for being parallel to the metal band
To be arranged side by side, and between two metal patches be spaced pre-determined distance formed strip crevice so that described two metal patch works
Make in reverse phase TE20Mode.
In one embodiment of the utility model, the flat shape of the metal patch is rectangle.
In one embodiment of the utility model, described two feed structures are isometric two micro-strip arranged side by side
Line, spaced apart between two microstrip lines, two microstrip lines are vertical with the metal band, the rear end of two microstrip lines
Different location positioned at the same side of the underlying dielectric base lower surface, the front end of two microstrip lines form described two feedbacks
Electric end, described two feed ends pass through two metal throuth holes being vertically arranged respectively and connect the metal band.
The 5G millimeter wave broadband differential antennae of the utility model has the advantages that the 5G millimeter of the utility model
The metal band and the two group metal patches symmetrical about metal band of wave broadband antenna introducing symmetric feeds are humorous
Shake device, constitute single layer structure millimeter wave differential antennae, obtain section it is low, with the simple effect of wide and structure；Further, golden
Belong to band and metal patch is distributed about feed line center point symmetry, ensure that the symmetry and low-cross polarization of directional diagram；
Strip crevice between metal patch guarantees that two metal patches work in reverse phase TE20Mode, so that antenna is under difference excitation
Energy work well, the utility model can be used as independent antenna monomer work, can also line up array and form beam array
Column or the phased array array with beam scanning function.
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 the sectional view of 5G millimeter wave broadband differential antennae provided by the embodiment of the utility model；
Fig. 2 is the floor map of top level structure；
Fig. 3 is the floor map of interlayer structure；
Fig. 4 is the floor map of fabric；
Fig. 5 is the simulation result schematic diagram of antenna provided by the embodiment of the utility model；
Fig. 6 is the emulation directional diagram of antenna provided by the embodiment of the utility model.
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 understood that the specific features in the utility model embodiment and embodiment are to the application skill
The detailed description of art scheme, rather than the restriction to technical scheme, in the absence of conflict, the utility model are real
The technical characteristic applied in example and embodiment can be combined with each other.
It should be noted that term as used herein "vertical", "horizontal", "left" and "right" and similar table
It states for illustrative purposes only.Unless otherwise defined, all technical and scientific terms used herein and belong to this reality
It is identical with the novel normally understood meaning of those skilled in the art.Made in the specification of the utility model herein
Term, which is only for the purpose of describing specific embodiments, to be not intended to limit the utility model.
With reference to Fig. 1-4, the utility model embodiment provides a kind of 5G millimeter wave broadband differential antennae, including from top to bottom according to
Top level structure 1, top layer medium substrate, interlayer structure 2, underlying dielectric substrate, the fabric 3 of secondary setting.
Wherein, top level structure 1 is set to top layer medium substrate upper surface, by metal band 4 and is symmetrically distributed in metal
Two groups of metal patch resonators 5 of 4 two sides of band form.Wherein, metal band 4 is used to microwave signal being coupled to described two groups
Metal patch resonator 5 is to generate required mode of resonance.
Wherein, interlayer structure 2 is set between underlying dielectric upper surface of base plate and top layer medium substrate lower surface, described
There are two the metal of through-hole 6 the earth 7 to open up in thickness direction for interlayer structure 2.Metal the earth 7, top layer medium substrate,
The flat shape of underlying dielectric substrate is identical and is in rectangle, and is overlapped in the projection of horizontal plane.Through-hole 6 is specially round logical
Hole.
Wherein, fabric 3 is set to underlying dielectric base lower surface, is made of two feed structures 8, described two feedbacks
The central point of line between two feed ends of electric structure 8 is overlapped with the projection of the central point of metal band 4, two feed knots
Structure 8 is connect via two metal throuth holes 9 for passing through two through-holes 6 with the metal band 4 respectively, to the metal band 4
Carry out symmetric feeds.Wherein, metal throuth hole 9 is actually and is formed by the outer surface of metal copper post.
Specifically, 4 center of metal band is overlapped with the projection at top layer medium substrate center, the top layer medium
One opposite side of substrate is located at 4 two sides of metal band and, each group metal patch resonance symmetrical about the metal band 4
Device 5 includes two metal patches, and the flat shape of the metal patch is rectangle.Described two metal patches are described along being parallel to
The direction of metal band 4 is arranged side by side, and is spaced pre-determined distance between two metal patches and forms strip crevice, so that described two
A metal patch work is in reverse phase TE20Mode.
Specifically, described two feed structures 8 are isometric two microstrip line arranged side by side, between two microstrip lines between
At a certain distance, two microstrip lines are vertical with the metal band 4, and the rear end of two microstrip lines is located at the underlying dielectric base
The different location of the same side of plate lower surface, the front end of two microstrip lines form described two feed ends, described two feeds
End connects the metal band 4 by two metal throuth holes 9 being vertically arranged respectively.
The working principle for the antenna that the utility model is proposed is: difference millimeter-wave signal is respectively from the two of fabric 3
The rear end feed-in of microstrip line, the metal throuth hole 9 then connected via front end carry out the metal band 4 in top level structure 1
Symmetric feeds, then microwave signal is coupled to two groups of metal patch resonators 5 positioned at 4 two sides of metal band by metal band 4,
It is finally reached the effect of antenna wideband operation.By introducing the metal band of symmetric feeds in same layer and about metal band
Two groups of symmetrical metal patch resonators, had not only met demand of the 5th third-generation mobile communication technology to bandwidth, but also solve
Existing differential antennae design structure is complicated, the high disadvantage of processing cost, low (0.044 λ of antenna section0), with wide
(16.4%), structure is simple.Meanwhile this antenna also has the effect of cross polarization is low, directional diagram is symmetrical etc..
For example, two substrate dielectric constants are 3.38, loss angle 0.0027, antenna part in a specific embodiment
Dividing thickness (i.e. the thickness of top layer medium substrate) is 0.508mm (0.044 λ0), feeding line portion thickness (i.e. underlying dielectric substrate
Thickness) it is 0.203mm.If Fig. 5 illustrates the simulation result of the antenna, transmission response and the radiation of antenna emulation are illustrated in figure
Response, it is seen that in 26GHz frequency band, 10-dB coupling bandwidth is 16.4% for its work, and gain is 7.2-7.4dBi in frequency band.Fig. 6 is
Antenna at 26GHz emulates directional diagram, and the left side is xoz surface radiation directional diagram in Fig. 6, and the right is yoz surface radiation direction in Fig. 6
Figure, it is seen that the cross-polarization levels of antenna are better than 40dB.
To sum up, the 5G millimeter wave broadband differential antennae of the utility model, has the advantages that the 5G of the utility model
Millimeter wave broadband differential antennae introduces the metal band of symmetric feeds and the two group metals symmetrical about metal band paste
Piece resonator, constitute single layer structure millimeter wave differential antennae, obtain section it is low, with the simple effect of wide and structure；Further
Ground, metal band and metal patch are distributed about feed line center point symmetry, ensure that the symmetry and low intersection of directional diagram
Polarization；Strip crevice between metal patch guarantees that two metal patches work in reverse phase TE20Mode, so that antenna swashs in difference
Lower energy work well is encouraged, the utility model can be used as independent antenna monomer work, can also line up array and form orientation day
Linear array or phased array array with beam scanning function.
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 (6)
1. a kind of 5G millimeter wave broadband differential antennae characterized by comprising
It is set to the top level structure (1) of top layer medium substrate upper surface, including metal band (4) and is symmetrically distributed in metal strip
Two groups of metal patch resonators (5) of band (4) two sides, metal band (4) are used to microwave signal being coupled to two groups of metals
Patch resonator (5) is to generate required mode of resonance；
The interlayer structure (2) being set between underlying dielectric upper surface of base plate and top layer medium substrate lower surface, the centre
There are two the metal of through-hole (6) the earth (7) to open up in thickness direction for layer structure (2)；
It is set to the fabric (3) of underlying dielectric base lower surface, including two feed structures (8), two feed structures (8)
It is connect respectively via two metal throuth holes (9) for passing through two through-holes (6) with the metal band (4), to the metal strip
Band (4) carries out symmetric feeds.
2. 5G millimeter wave broadband differential antennae according to claim 1, which is characterized in that the through-hole (6) is round logical
Hole.
3. 5G millimeter wave broadband differential antennae according to claim 1, which is characterized in that described two feed structures (8)
Feed end between the central point of line be overlapped with the projection of the central point of metal band (4).
4. 5G millimeter wave broadband differential antennae according to claim 3, which is characterized in that metal band (4) center
It is overlapped with the projection at top layer medium substrate center, an opposite side of the top layer medium substrate is located at the metal band
(4) two sides and about the metal band (4) symmetrically, each group of metal patch resonator (5) includes two metal patches, described
Two metal patches are arranged side by side along the direction for being parallel to the metal band (4), and are spaced between two metal patches default
Distance forms strip crevice, so that the work of described two metal patches is in reverse phase TE20Mode.
5. 5G millimeter wave broadband differential antennae according to claim 4, which is characterized in that the planar shaped of the metal patch
Shape is rectangle.
6. 5G millimeter wave broadband differential antennae according to claim 3, which is characterized in that described two feed structures (8)
It is spaced apart between two microstrip lines for isometric two microstrip line arranged side by side, two microstrip lines with the gold
Belonging to band (4) vertically, the rear end of two microstrip lines is located at the different location of the same side of the underlying dielectric base lower surface,
The front end of two microstrip lines forms described two feed ends, and described two feed ends pass through two gold being vertically arranged respectively
Belong to through-hole (9) and connects the metal band (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821776122.XU CN208862174U (en) | 2018-10-31 | 2018-10-31 | 5G millimeter wave broadband differential antennae |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821776122.XU CN208862174U (en) | 2018-10-31 | 2018-10-31 | 5G millimeter wave broadband differential antennae |
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| CN208862174U true CN208862174U (en) | 2019-05-14 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301473A (en) * | 2018-10-31 | 2019-02-01 | 南通至晟微电子技术有限公司 | 5G millimeter wave broadband differential antennae |
| CN110364813A (en) * | 2019-07-18 | 2019-10-22 | 南通大学 | The SIW feed structure and aerial array of Differential Input port |
| CN111786095A (en) * | 2020-08-10 | 2020-10-16 | 南通大学 | Broadband inclined beam medium patch antenna |
| US11978964B2 (en) | 2019-11-26 | 2024-05-07 | Huawei Technologies Co., Ltd. | Antenna structure, circuit board with antenna structure, and communications device |
-
2018
- 2018-10-31 CN CN201821776122.XU patent/CN208862174U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301473A (en) * | 2018-10-31 | 2019-02-01 | 南通至晟微电子技术有限公司 | 5G millimeter wave broadband differential antennae |
| CN109301473B (en) * | 2018-10-31 | 2024-08-16 | 至晟(临海)微电子技术有限公司 | 5G millimeter wave broadband differential antenna |
| CN110364813A (en) * | 2019-07-18 | 2019-10-22 | 南通大学 | The SIW feed structure and aerial array of Differential Input port |
| CN110364813B (en) * | 2019-07-18 | 2020-09-15 | 南通大学 | SIW feeding structure of differential input port and antenna array |
| US11978964B2 (en) | 2019-11-26 | 2024-05-07 | Huawei Technologies Co., Ltd. | Antenna structure, circuit board with antenna structure, and communications device |
| CN111786095A (en) * | 2020-08-10 | 2020-10-16 | 南通大学 | Broadband inclined beam medium patch antenna |
| CN111786095B (en) * | 2020-08-10 | 2023-08-18 | 南通大学 | Broadband oblique wave beam medium patch antenna |
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