CN206806483U

CN206806483U - A kind of bay and aerial array

Info

Publication number: CN206806483U
Application number: CN201720107668.5U
Authority: CN
Inventors: 钟坤静; 王志刚; 孟洪福
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2017-02-03
Filing date: 2017-02-03
Publication date: 2017-12-26
Anticipated expiration: 2027-02-03

Abstract

The utility model discloses a kind of bay and aerial array.The bay includes substrate, primary radiation paster and feed port：The substrate is shaped as n sides shape, which is provided with through hole, and n is the integer more than or equal to 3；The primary radiation paster is located at the front of the substrate；The feed port is located at the back side of the substrate, and its inner wire extends to the substrate front side by the through hole on the substrate and electrically connected with the primary radiation paster.Using the utility model, each bay is fixed on by specific space by support, so that the main radiation direction of each bay and polarization of the e direction are mutually staggered, improves the radiofrequency signal coupled characteristic between array element.Also, multiple bays are fixed using polyhedral support, is not only simple in structure, reduces the volume of bay.

Description

A kind of bay and aerial array

Technical field

It the utility model is related to communication technique field, more particularly to a kind of bay and aerial array.

Background technology

Multiple Input Multiple Output (Multiple-Input Multiple-Output, MIMO), refers in transmitting terminal and reception End uses multiple transmitting antennas and reception antenna respectively, signal is transmitted and is connect by multiple antennas of transmitting terminal and receiving terminal Receive, so as to improve communication quality.It can make full use of space resources, and MIMO is realized by multiple antennas, not increase frequency In the case of spectrum resource and antenna transmission power, system channel capacity can be increased exponentially.Because MIMO technology can be abundant The free degree of excavated space dimension, obtains preferable power utilization, extensive mimo system draws while spectrum efficiency is improved Extensive concern both domestic and external has been played, and as one of the 5th most potential Radio Transmission Technology of generation (5G) wireless communication system.

Extensive mimo system in base station side due to introducing large-scale antenna array, also band while performance gain is brought Carry out unprecedented challenge, wherein, because the isolation between the bay of mimo system is not high, large-scale antenna array Radiance and array element between coupling factor to MIMO communication system performance influence be exactly a key needed to be studied Sex chromosome mosaicism.Although prior art also has some to have the mimo antenna of certain isolation, these antenna generally existing structure Complicated, the problem of isolation is not high.

Therefore, it is necessary to provide a kind of simple in construction, isolation high bay and aerial array.

Utility model content

In view of this, the purpose of this utility model is to provide a kind of bay and aerial array, to solve existing skill The problem of art antenna array structure is complicated, and isolation is not high.

Technical scheme is as follows used by the utility model solves above-mentioned technical problem：

On the one hand, the utility model provides a kind of bay, and the bay includes substrate, primary radiation paster and feedback Electric port：

The substrate is shaped as n sides shape, which is provided with through hole, and n is the integer more than or equal to 3；

The primary radiation paster is located at the front of the substrate；

The feed port is located at the back side of the substrate, and its inner wire is extended to described by the through hole on the substrate Substrate front side simultaneously electrically connects with the primary radiation paster.

Preferably, the both sides of the primary radiation paster are equipped with an auxiliary radiation paster.

Preferably, the primary radiation paster and the auxiliary radiation paster are rectangle.

Preferably, the substrate is shaped as pentagon.

Preferably, the working frequency range of the bay in 3.3GHz between 3.4GHz.

On the other hand, the utility model also provides a kind of aerial array, and the aerial array includes at least two as above institutes The bay stated and a support：The support is shaped as a m faces body, and m is the integer more than or equal to 4；Each day Linear array member is separately fixed on a face of the support, and the main radiation direction and polarization of the e direction phase of each bay Mutually stagger.

Preferably, the substrate of the bay is regular pentagon, and the support is regular dodecahedron.

Preferably, the quantity of the bay is 11, and 11 faces with the support coordinate respectively.

Preferably, the support is 3D printing support.

Preferably, fixed between the support and the bay by screw.

Bay and aerial array of the present utility model, it is using polyhedral support, multiple bays are solid respectively Each face of support is scheduled on, each bay is fixed on by specific space by support, so that the main spoke of each bay Penetrate direction and polarization of the e direction mutually to stagger, improve the radiofrequency signal coupled characteristic between array element.Also, use polyhedron Support fix multiple bays, be not only simple in structure, reduce the volume of bay.

Brief description of the drawings

Fig. 1 is a kind of structural representation for aerial array that the utility model embodiment provides；

Fig. 2 is a kind of signal of the Facad structure of the bay of the regular pentagon used in the utility model embodiment Figure；

Fig. 3 is the side view of bay in the utility model embodiment；

Fig. 4 is the structural representation of the utility model medium-height trestle；

Fig. 5 is the schematic diagram being fixed on bay by screw in the utility model embodiment on support.

Realization, functional characteristics and the advantage of the utility model purpose will be described further referring to the drawings in conjunction with the embodiments.

Embodiment

In order that technical problem to be solved in the utility model, technical scheme and beneficial effect are clearer, clear, with Under in conjunction with the accompanying drawings and embodiments, the utility model is further elaborated.It is it should be appreciated that described herein specific real Example is applied only to explain the utility model, is not used to limit the utility model.

The utility model provides a kind of aerial array and bay.Referring to Fig. 1, aerial array includes at least two Bay 10 and a support 30：

The support 30 is shaped as a m faces body, and m is the integer more than or equal to 4；

The bay 10 is shaped as n sides shape, and n is the integer more than or equal to 3, and each bay is separately fixed at On one face of the support, and the main radiation direction of each bay and polarization of the e direction are mutually staggered.

In an optional scheme, Fig. 2 and Fig. 3 are referred to, bay 10 is regular pentagon.

The bay 10 includes：Substrate 110, primary radiation paster 120, auxiliary radiation paster 121 and feed port 130。

The substrate 110 is shaped as pentagon, which is provided with through hole (not shown).

Primary radiation paster 120 is located at the front of substrate 110, and its both sides is respectively provided with an auxiliary radiation paster 121.It is wherein main Radiation patch 120 and the auxiliary radiation paster 121 are rectangle.Specifically, auxiliary spoke is set in the both sides of primary radiation paster Paster is penetrated, can be with the emission band of broadening antenna.

Feed port 130 is located at the back side of the substrate 110, and the inner wire of feed port 130 passes through on the substrate Through hole extends to the substrate front side and electrically connected with the primary radiation paster 120.In practical application, the side of welding can be passed through Formula realizes the electrical connection between primary radiation paster 120 and inner wire.

In practical application, the working frequency range of the bay 10 can be in 3.3GHz to (i.e. 3.3- between 3.4Ghz 3.4GHz), low cost, the mimo wireless communication system of high transfer rate be can be applied to.

In practical application, substrate 110 can use printed circuit board (PCB) (Printed Circuit Board, PCB), utilize Prepared by PCB technology, cost is cheap, small volume, and can be fed using coaxial line via substrate back.

In an optional scheme, Fig. 4 is referred to.

The support 30 is a regular dodecahedron, and each of which face is all a regular pentagon, for fixing a bay 10。

In practical application, support 30 can the one-shot forming by the way of 3D printing.

During installation, multiple bays 10 can be fixed by screws on each face of support 30 respectively, such as Fig. 5 institutes Show.

Using this structure, each bay 10 can be fixed on specific dimensional orientation by support 30, make each array element Main radiation direction and polarization of the e direction be staggered mutually, it is ensured that the degree of coupling between array element is relatively low, so as to improve array element Between radiofrequency signal coupled characteristic.

In the present embodiment, a bay 10 can be all fixed on 11 faces of support 30, i.e., on the support 30 altogether Secure 11 bays 10.

In practical application, can also be according to the shape for the substrate for being actually needed setting bay, such as substrate Triangle, regular hexagon etc.；And support corresponding can also be arranged to tetrahedron, regular octahedron, positive 24 face body etc., as long as ensuring The shape of substrate and the shape in each face of support can cooperate, and the main radiation direction of each bay and electric wave pole Change direction mutually to stagger.

Mimo antenna array (positive 12 in the HFSS 3 D electromagnetics field simulation software using Ansoft companies to the present embodiment Face body support frame fixes the aerial array of 11 pentagon substrates) emulated, and processed using PCB technology and 3D printing technique Material object is carried out in test experiments, and the result of emulation and test is shown：

1st, in aerial array input S parameter, S11 is less than -10dB at 3.3-3.4GHz；

2nd, the port degree of coupling of aerial array input is tested, the equal ＜ -30dB of the degree of coupling at 3.3-3.4GHz, represents battle array Isolation is good between member；

3rd, in the simulated radiation of bay, the maximum gain of antenna is 4.7dB in main radiation direction；

4th, tested in the input S parameter of bay, it is 3.3-3.4GHz to show Antenna Operation frequency range.

The mutual coupling parameter between each bay is respectively less than -30dB, this reality in the working frequency range of aerial array as can be seen here It is good to apply the aerial array of the example service behaviour in MIMO communication system.

The aerial array of the present embodiment, using polyhedral support, multiple bays are separately fixed at each of support Face, each bay is fixed on by specific space by support, so that the main radiation direction and electric wave of each bay Polarised direction mutually staggers, and improves the radiofrequency signal coupled characteristic between array element.Also, fixed using polyhedral support more Individual bay, is not only simple in structure, and reduces the volume of bay.

Above by reference to preferred embodiment of the present utility model has been illustrated, not thereby limit to right of the present utility model Scope.Those skilled in the art do not depart from any modification made in the scope of the utility model and essence, equivalent substitution and changed Enter, all should be within interest field of the present utility model.

Claims

1. a kind of bay, it is characterised in that the bay includes substrate, primary radiation paster and feed port：

The primary radiation paster is located at the front of the substrate；

The feed port is located at the back side of the substrate, and the substrate is extended to by the through hole on the substrate by inner wire Front simultaneously electrically connects with the primary radiation paster.

2. bay according to claim 1, it is characterised in that the both sides of the primary radiation paster be equipped with one it is auxiliary Help radiation patch.

3. bay according to claim 2, it is characterised in that the primary radiation paster and the auxiliary radiation paster It is rectangle.

4. bay according to claim 3, it is characterised in that the substrate is shaped as pentagon.

5. bay according to claim 3, it is characterised in that the working frequency range of the bay in 3.3GHz extremely Between 3.4GHz.

6. a kind of aerial array, it is characterised in that the aerial array includes any one of at least two such as claims 1 to 5 institute The bay stated and a support：The support is shaped as a m faces body, and m is the integer more than or equal to 4；Each day Linear array member is separately fixed on a face of the support, and the main radiation direction and polarization of the e direction phase of each bay Mutually stagger.

7. aerial array according to claim 6, it is characterised in that the substrate of the bay is regular pentagon, institute It is regular dodecahedron to state support.

8. aerial array according to claim 7, it is characterised in that the quantity of the bay be 11, respectively with 11 faces of the support coordinate.

9. according to the aerial array described in any one of claim 6 to 8, it is characterised in that the support is 3D printing support.

10. aerial array according to claim 9, it is characterised in that pass through between the support and the bay Screw is fixed.