CN206059644U - A kind of LTE antenna unit in broadband - Google Patents
A kind of LTE antenna unit in broadband Download PDFInfo
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- CN206059644U CN206059644U CN201621109849.3U CN201621109849U CN206059644U CN 206059644 U CN206059644 U CN 206059644U CN 201621109849 U CN201621109849 U CN 201621109849U CN 206059644 U CN206059644 U CN 206059644U
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Abstract
The utility model discloses a kind of LTE antenna unit in broadband, with inverse-F antenna as prototype, inverse-F antenna has low profile structure, radiation field has horizontal and vertical two kinds of polarization, additionally, due to compact conformation and have etc. direction radiation characteristic, while good grounding design can effectively improve the work efficiency of antenna.This utility model is by being folded into 3-D solid structure inverted f, radiation patch is attached to FR4 material cuboid surfaces that size is 10*10*5 designing the antenna element of mimo antenna system, the miniaturization of antenna system, high-gain etc. are realized, with good radiation characteristic.
Description
Technical field
This utility model belongs to antenna technical field, more particularly to a kind of LTE antenna unit in broadband.
Background technology
Antenna is one of most important part in wireless communication field, and main function is to receive transmitting electromagnetic wave.With
The development of society, the progress of science and technology, antenna will be directly influenced entirely as device crucial in communication system, the quality of performance
The quality of systematic function.Front end of the antenna as system, therefore its structure, size, layout type and polarization characteristic etc. are proposed
More strict requirements.We are it is found that for MIMO (Multiple-Input Multiple-Output, multiple-input, multiple-output)
The miniaturization high target of system antenna has become one of Engineering of Design Antenna's teacher problem demanding prompt solution.MIMO in the market
Antenna, or volume is larger, or narrower bandwidth, is not suitable for multiunit mimo system, does not also meet mobile terminal increasingly
The trend of miniaturization.
Utility model content
For the problem that prior art is present, this utility model provides a kind of LTE in broadband (Long Term
Evolution, Long Term Evolution) antenna element, with inverse-F antenna as prototype, it is 3-D solid structure to be folded into, not only volume
It is compact, and improve the work efficiency of antenna.
What above-mentioned technical problem of the present utility model was mainly addressed by following technical proposals：
A kind of LTE antenna unit in broadband of the present utility model, including FR4 substrates, FR4 cuboids, antenna element and
Reference ground；The FR4 cuboids are arranged on the front of FR4 substrates, and antenna element includes space segment and above ground portion；Reference ground
It is arranged on FR4 substrate backs；
The expansion prototype of the space segment is inverse-F antenna, including：First radiation branch, the second radiation branch, the 3rd spoke
Ray bar；The eo sections of the second radiation branch bend inwards perpendicular to the efg sections and the 3rd cde for radiating branch of the second radiation branch
The radiating surface that section connection is formed, the bc sections of the 3rd radiation branch bend inwards (bend to the direction for being affixed to FR4 cuboids) and hang down
The straight cd section radiating surfaces in the 3rd radiation branch, the ab sections of the 3rd radiation branch bend inwards perpendicular to the cb of the 3rd radiation branch
Section radiating surface, the kj sections of the first radiation branch bend inwards perpendicular to the first radiation branch ji section radiating surfaces, the first radiation branch
Ih sections bend inwards perpendicular to the first radiation branch ji section radiating surfaces, the mh sections outward bending of the first radiation branch is perpendicular to the
The ih section radiating surfaces of one radiation branch, the mn sections of the first radiation branch bend inwards perpendicular to the mh sections radiation of the first radiation branch
Face forms distributing point, and the pq sections of the first radiation branch bend inwards perpendicular to the op section radiating surfaces of the first radiation branch, the first spoke
Pq section radiation of the qr section outward bendings (bending to the direction for leaving FR4 cuboids) of ray bar perpendicular to the first radiation branch
Face, the rs sections of the first radiation branch bend inwards perpendicular to the qr sections radiating surface formation earth point of the first radiation branch；Spatial portion
The outside of FR4 cuboids is wrapped in after lease making bending；Above ground portion includes the first coupling branch and the second coupling branch, the first coupling
Close branch and the second coupling branch is arranged at FR4 substrate backs, be connected with reference ground.
Further, the length, width and height size of FR4 cuboids is 10mm*10mm*5mm.
Further, the first radiation branch, the second radiation branch and the 3rd radiation branch are except the hkl of the first radiation branch
The width of section is 1mm, and the width of remainder is 2mm.
Further, the reference ground is concave, and the second coupling branch is " L " shape, and second couples the long end of branch
And first one end of coupling branch be connected to phase the same side of reference ground, wherein the long end of the second coupling branch is referred to the side
The upper end on ground is connected.
Further, the reference ground is located at the underface of the space segment of antenna element, the first coupling branch and first
The mh sections of radiation branch are vertical, and the long end of the second coupling branch is parallel with the first coupling branch.
Further, the inner side spacing of the left and right sides of reference ground is 12mm, on the inside of its base to side top distance is
11.6mm。
The beneficial effects of the utility model are：Small-sized, the body of only 10mm × 10mm × 5mm of the antenna element
Product.The ground coupling branch part very little, cuts ground portion size and also there was only 11.6mm × 12mm.The antenna element is with inverse-F antenna
Based on a kind of stereoeffect, reduce antenna plane area while, also improve the bandwidth and radiance of antenna,
4 cellular systems of mimo antenna in handheld terminal can be realized, while being also in this skinny device of hand-held mobile terminal to realize 6
The mimo antenna system of unit and unit 8 provides possibility, also, the frequency band of the antenna is very wide, and the bandwidth of emulation and actual measurement is all
1.66-4.39GHz can be reached.Due to frequency range it is very wide so that it is of wide application, it is adaptable to PCS1900 (1.85-
1.99GHz), UMTS2100 (1.92-2.17), LTE2300 (2.305-2.4GHz), LTE2500 (2.5-2.69GHz),
DCS1800 (1.71-1.88GHz), 2.4GHzISM, newest LTE frequency ranges (3.4-3.8GHz) and WRC-15 (2.6-
4.2GHz)。
Description of the drawings
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or accompanying drawing to be used is briefly described needed for description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise for not paying creative work
Under, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 a are structural representation of the present utility model；
Fig. 1 b are the structural representation of reference ground and coupling branch；
Structural representations of Fig. 1 c for antenna element space segment；
Size marking figures of Fig. 1 d for antenna element space segment；
Fig. 2 a are the expanded view of antenna element space segment in this utility model；
Fig. 2 b be this utility model in antenna element space segment expansion after only deposit mark figure；
Fig. 3 is the return loss plot of antenna element of the present utility model；
Fig. 4 a are the directional diagram in antenna element of the present utility model xoz faces in 3.6GHz；
Fig. 4 b are the directional diagram in antenna element of the present utility model yoz faces in 3.6GHz；
Fig. 4 c are the directional diagram in antenna element of the present utility model xoz faces in 2.45GHz；
Fig. 4 d are the directional diagram in antenna element of the present utility model yoz faces in 2.45GHz；
Fig. 4 e are the directional diagram in antenna element of the present utility model xoz faces in 1.9GHz；
Fig. 4 f are the directional diagram in antenna element of the present utility model yoz faces in 1.9GHz.
Specific embodiment
Below in conjunction with the accompanying drawings preferred embodiment of the present utility model is described in detail, so that advantage of the present utility model
Can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear and definite so as to make to protection domain of the present utility model
Define.
As shown in Fig. 1 a- Fig. 4 f, a kind of LTE antenna unit in broadband, including FR4 substrate B, FR4 cuboid G, antenna list
Unit and reference ground A；The FR4 cuboids G is arranged on the front of FR4 substrate B, and antenna element includes space segment and floor portion
Point；Reference ground A is arranged on the FR4 substrate B back sides, and the thickness of the substrate is 0.8mm；
The expansion prototype of the space segment is inverse-F antenna, including：First radiation branch C1, the second radiation branch C2, the
Three radiation branch C3；The eo sections of the second radiation branch C2 bend inwards perpendicular to the efg sections and the 3rd spoke of the second radiation branch C2
The cde sections of ray bar C3 connect the radiating surface to be formed, and the bc sections of the 3rd radiation branch C3 bend inwards perpendicular to the 3rd radiation branch
The cd section radiating surfaces of bar C3, the ab sections of the 3rd radiation branch C3 bend inwards perpendicular to the cb sections radiation of the 3rd radiation branch C3
Face, the kj sections of the first radiation branch C1 bend inwards perpendicular to the ji section radiating surfaces of the first radiation branch C1, the first radiation branch
The ih sections of C1 bend inwards perpendicular to the ji section radiating surfaces of the first radiation branch C1, the mh section outward bendings of the first radiation branch C1
Perpendicular to the ih section radiating surfaces of the first radiation branch C1, the mn sections of the first radiation branch C1 bend inwards perpendicular to the first radiation branch
The mh sections radiating surface of bar C1 forms distributing point F, and the pq sections of the first radiation branch C1 bend inwards perpendicular to the first radiation branch C1
Op section radiating surfaces, the pq section radiating surfaces of the qr sections outward bending of the first radiation branch C1 perpendicular to the first radiation branch C1, the
The rs sections of one radiation branch C1 bend inwards perpendicular to the qr sections radiating surface formation earth point E of the first radiation branch C1；Spatial portion
The outside of FR4 cuboid G is wrapped in after lease making bending；Above ground portion includes the coupling branch D2 of the first coupling branch D1 and second,
First coupling branch D1 and the second coupling branch D2 are arranged at the FR4 substrate B back sides, are connected with reference ground A.
Further, the first radiation branch C1, the second radiation branch C2 and the 3rd radiation branch C3 remove the first radiation branch
The width of the hkl sections of bar C1 is 1mm, and the width of remainder is 2mm.
Further, reference ground A is concave, and the second coupling branch D2 is " L " shape, the second coupling branch D2's
One end of long end and the first coupling branch D1 is connected to phase the same side of reference ground A, wherein the long end of the second coupling branch D2
It is connected with the upper end of side reference ground A.
Further, reference ground A is located at the underface of the space segment of antenna element, the first coupling branch D1 and the
The mh sections of one radiation branch C1 are vertical, and the long end of the second coupling branch D2 is parallel with the first coupling branch D1.
Further, the inner side spacing of the left and right sides of reference ground A is 12mm, on the inside of its base to side top distance is
11.6mm。
With inverse-F antenna as prototype, inverse-F antenna has low profile structure, and radiation field has level for design of the present utility model
Polarize with vertical two kinds, additionally, due to compact conformation and the direction radiation characteristic such as there is, while good grounding design can be with
Effectively improve the work efficiency of antenna.By inverted f is folded into 3-D solid structure, radiation patch is attached to size to this utility model
For the FR4 material cuboids surface of 10mm × 10mm × 5mm, the antenna element of mimo antenna system is designed, antenna is realized
The miniaturization of system, high-gain etc., with good radiation characteristic.Antenna element frequency band is very wide, is 1.66-4.39GHz, respectively
Come by the coupling branch (such as the D1 and D2 in Fig. 1 a) on three radiation branch (such as C1, C2 and the C3 in Fig. 1 a) and two ground
Control realization.As shown in Figure 1a, the effect of the first radiation branch C1 is to control antenna band for 2.8-3.5GHz parts, center frequency
Point is 3.0GHz or so.The effect of the second radiation branch C2 is the HFS 3.4-3.9GHz for controlling antenna, and center frequency point is big
About 3.6GHZ or so.The effect of the 3rd radiation branch C3 is to control frequency range 2.2-2.3GHZ, and HFS 3.1-
3.8GHz.As shown in Figure 1 b, the first coupling branch D1 Main Functions are the matchings for adjusting antenna, do not play control frequency range
Effect.Second coupling branch D2 Main Functions are to form a couple current path, and the low frequency of control antenna is formed with ground
The frequency range of the frequency range and 2.5GHz of 1.75GHz or so or so.The position by changing earth point and ground patch are also required to simultaneously
Width, adjust band bandwidth and gain, select suitable earth point to reach the requirement of design.
Fig. 3 be antenna element return loss plot, wherein solid line is simulation result, and dotted line is measurement knot in kind
Really.- 6dB the bandwidth that can be seen that antenna by the figure is 1.66-4.39GHz.
By the gain curve of antenna element, it can be seen that gain of the antenna in frequency range is very high, in 4GHz or so Shi Tian
The gain of line is up to about 4dB, obtains least gain in 2.2GHz or so and is about 1.12dB.
The above, specific embodiment only of the present utility model, but protection domain of the present utility model do not limit to
In this, any change or replacement expected without creative work should all be covered within protection domain of the present utility model.
Therefore, the protection domain that protection domain of the present utility model should be limited by claims is defined.
Claims (6)
1. the LTE antenna unit in a kind of broadband, it is characterised in that：Including FR4 substrates（B）, FR4 cuboids（G）, antenna element with
And reference ground（A）；The FR4 cuboids（G）It is arranged on FR4 substrates（B）Front, antenna element includes space segment and ground
Part；Reference ground（A）It is arranged on FR4 substrates（B）The back side；
The expansion prototype of the space segment is inverse-F antenna, including：First radiation branch（C1）, second radiation branch（C2）,
Three radiation branches（C3）；Second radiation branch（C2）Eo sections bend inwards perpendicular to second radiation branch（C2）Efg sections with
3rd radiation branch（C3）Cde sections connect the radiating surface to be formed, the 3rd radiation branch（C3）Bc sections bend inwards perpendicular to
3rd radiation branch（C3）Cd section radiating surfaces, the 3rd radiation branch（C3）Ab sections bend inwards perpendicular to the 3rd radiation branch
（C3）Cb section radiating surfaces, first radiation branch（C1）Kj sections bend inwards perpendicular to first radiation branch（C1）Ji sections are radiated
Face, the first radiation branch（C1）Ih sections bend inwards perpendicular to first radiation branch（C1）Ji section radiating surfaces, the first radiation branch
Bar（C1）The outward bending of mh sections perpendicular to first radiation branch（C1）Ih section radiating surfaces, first radiation branch（C1）Mn sections
Bend inwards perpendicular to the first radiation branch（C1）Mh sections radiating surface formed distributing point（F）, the first radiation branch（C1）Pq
Section bends inwards perpendicular to the first radiation branch（C1）Op section radiating surfaces, first radiation branch（C1）The outward bending of qr sections hang down
It is straight to radiate branch in first（C1）Pq section radiating surfaces, first radiation branch（C1）Rs sections bend inwards perpendicular to first radiation
Branch（C1）Qr sections radiating surface formed earth point（E）；FR4 cuboids are wrapped in after the bending of spatial portion lease making（G）Outside；Ground
Face point includes the first coupling branch（D1）With the second coupling branch（D2）, the first coupling branch（D1）With the second coupling branch
（D2）It is arranged at FR4 substrates（B）The back side, and reference ground（A）Connection.
2. the LTE antenna unit in a kind of broadband according to claim 1, it is characterised in that：FR4 cuboids（G）Length and width
High size is 10mm*10mm*5mm.
3. the LTE antenna unit in a kind of broadband according to claim 1, it is characterised in that：First radiation branch（C1）,
Two radiation branches（C2）And the 3rd radiation branch（C3）Except the first radiation branch（C1）Hkl sections width be 1mm, its remaining part
The width for dividing is 2mm.
4. the LTE antenna unit in a kind of broadband according to claim 1, it is characterised in that：The reference ground（A）For " recessed "
Font, the second coupling branch（D2）For " L " shape, the second coupling branch（D2）Long end and first coupling branch（D1）One end
It is connected to reference ground（A）Phase the same side, wherein second coupling branch（D2）Long end and the side reference ground（A）Upper end phase
Even.
5. the LTE antenna unit in a kind of broadband according to claim 1, it is characterised in that：The reference ground（A）Positioned at day
The underface of the space segment of line unit, the first coupling branch（D1）With the first radiation branch（C1）Mh sections it is vertical, the second coupling
Close branch（D2）Long end couple branch with first（D1）It is parallel.
6. the LTE antenna unit in a kind of broadband according to claim 4, it is characterised in that：Reference ground（A）The left and right sides
Inner side spacing be 12mm, on the inside of its base to side top distance be 11.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621109849.3U CN206059644U (en) | 2016-10-10 | 2016-10-10 | A kind of LTE antenna unit in broadband |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621109849.3U CN206059644U (en) | 2016-10-10 | 2016-10-10 | A kind of LTE antenna unit in broadband |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206059644U true CN206059644U (en) | 2017-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621109849.3U Expired - Fee Related CN206059644U (en) | 2016-10-10 | 2016-10-10 | A kind of LTE antenna unit in broadband |
Country Status (1)
| Country | Link |
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| CN (1) | CN206059644U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571514A (en) * | 2016-10-10 | 2017-04-19 | 南京信息工程大学 | Broadband LTE antenna unit |
| CN110635231A (en) * | 2018-06-25 | 2019-12-31 | 常州仁千电气科技股份有限公司 | Miniaturized dual-frequency microstrip antenna |
-
2016
- 2016-10-10 CN CN201621109849.3U patent/CN206059644U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571514A (en) * | 2016-10-10 | 2017-04-19 | 南京信息工程大学 | Broadband LTE antenna unit |
| CN110635231A (en) * | 2018-06-25 | 2019-12-31 | 常州仁千电气科技股份有限公司 | Miniaturized dual-frequency microstrip antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170329 Termination date: 20181010 |
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| CF01 | Termination of patent right due to non-payment of annual fee |