CN206685528U - A kind of narrow beam scans intelligent mimo antenna - Google Patents

Abstract

The utility model discloses a kind of narrow beam to scan intelligent mimo antenna, it includes the round insulation dielectric-slab one for setting the n radiating element one of radial annular layout centered on the central shaft of dielectric-slab one, the round insulation dielectric-slab two being coaxially disposed with dielectric-slab one, be erected between dielectric-slab one and dielectric-slab two and centered on the central shaft of dielectric-slab one radial annular layout n insulation medium board three, be erected between dielectric-slab one and dielectric-slab two and centered on the central shaft of dielectric-slab one radial annular layout n insulation medium board four, the dielectric support of install medium plate three and four.Dielectric-slab two sets the n radiating element two of the radial annular layout centered on central shaft.Each dielectric-slab three sets a radiating element three, and each dielectric-slab four sets a radiating element four, and dielectric-slab three and four interlocks uniformly at intervals.The director of each radiating element three and each radiating element four is emerging in outside media support.

Description

A kind of narrow beam scans intelligent mimo antenna

Technical field

A kind of antenna is the utility model is related to, more particularly to a kind of narrow beam scans intelligent mimo antenna.

Background technology

In recent years, mobile interchange communication fast development, has penetrated into the every aspect of life.One side smart mobile phone, put down Plate computer, PC terminal televisions, even mobile unit, the wearable thing such as eyes wrist-watch, just progressively incorporate mobile Internet of Things；Separately The characteristics of new is presented with merging for internet in one side traditional industries, and Network Platform Construction and business model are all changed Become.These of terminal and industry change, and bring the rapid growth of data flow.

Traditional solution is the common omnidirectional antennas of AP+.AP (Access Point, AP access points) is exactly to pass HUB in system cable network, and set up equipment the most frequently used during micro radio LAN.Equivalent to one connection of AP is wired The bridge of net and wireless network, its main function are to connect together each wireless network clients, then connect wireless network Enter Ethernet.Most wireless aps all support the functions such as multiple access, data encryption, multi tate transmission, and some products are more Provide perfect wireless network management function.For small range WLAN as family, office, general It is that the wireless access of all computers can be achieved to need a wireless aps.AP indoor coverage areas is usually 30m~100m, no The AP products of few manufacturer can interconnect, to increase WLAN area coverages.Also just because of each AP coverage have it is certain Limitation, as mobile phone can roam between the base stations, wireless lan client can also roam between the aps.

Traditional solution has clearly disadvantageous：1st, poor anti-interference.Antenna is omnidirectional antenna, can not be to from each side To interference signal carry out space filtering；2nd, signal is weak big, causes distorted signals larger.3rd, the availability of frequency spectrum is low causes system Capacity is low etc..These deficiencies cause the intensive place of terminal user (such as large conference room, working hall, megastore, airport, Station etc.) online experience it is excessively poor, or even online can not be connected, this is the problem of long-standing problem industry, and user's online The pain spot of experience.

Although the narrow ripple selection antenna system of the orientation designed at present can realize the space filtering to interference signal, suppress Interference signal, the gain of antenna is improved, improve the receiving sensitivity and signal cover of system, while improve the utilization of frequency spectrum Rate, power system capacity is improved, solve the bad pain spot of the online experience in the dense area of user rapidly.However, the 0:00 direction by wave beam Alignment interference radiating way still can have certain error.

Utility model content

The utility model proposes a kind of narrow beam to scan intelligent mimo antenna, and it realizes the n sector of road signal of two-band 4 Narrow beam switched scan, each sector forms double frequency 2 × 2MIMO sub-antennas, the 0:00 direction of wave beam is accurately aligned into interference Direction.

Solution of the present utility model is：A kind of narrow beam scans intelligent mimo antenna, and it includes：

Round insulation dielectric-slab one, it sets n of the radial annular layout centered on the central shaft of dielectric-slab one Radiating element one, n are positive integer and are even number；

Round insulation dielectric-slab two, it is coaxially disposed with dielectric-slab one, and sets centered on the central shaft of dielectric-slab two The n radiating element two of radial annular layout；

N insulation medium board three, its be erected between dielectric-slab one and dielectric-slab two and using the central shaft of dielectric-slab one as The radial annular layout in center, each dielectric-slab three set a radiating element three；

N insulation medium board four, its be erected between dielectric-slab one and dielectric-slab two and using the central shaft of dielectric-slab one as The radial annular layout in center, each dielectric-slab four set a radiating element four, the n dielectric-slab three and the n medium Plate four interlocks uniformly at intervals.

As the further improvement of such scheme, dielectric support, it is fixed between dielectric-slab one and dielectric-slab two And for installing the n dielectric-slab three and the n dielectric-slab four, the director of each radiating element three and each radiating element four It is emerging in outside media support.

Further, media support offers the n groove one and n arranged in a ring as the center of circle using the center of media support Individual groove two, and groove one with groove two is adjacent two-by-two is staggeredly arranged；N dielectric-slab three is respectively inserted in n groove one, n dielectric-slab four It is respectively inserted in n slot two.

As the further improvement of such scheme, dielectric-slab one is situated between towards the front that the face of dielectric-slab two is dielectric-slab one The face that facing away from dielectric-slab two of scutum one is the back side of dielectric-slab one；

Each radiating element one includes：Metallic pattern combination one, it is positive above and including being in pair that it is arranged on dielectric-slab one Claim the metallic pattern one and metallic pattern two of layout；Metallic pattern three, its be arranged on the back side of dielectric-slab one and with corresponding gold Belong to graphical set to unify on corresponding position, the metallic pattern three combines a coupling with corresponding metallic pattern and sets a letter Number load point.

Further, each metallic pattern one and corresponding metallic pattern two are located at the opposite sides of a dielectric-slab three, Positioned at the opposite sides of a dielectric-slab four between two neighboring metallic pattern combination one.

Further, dielectric-slab two facing away from Jie towards the front that the face of dielectric-slab one is dielectric-slab two, dielectric-slab two The face of scutum one is the back side of dielectric-slab two；Each radiating element two is arranged on the front of dielectric-slab two, and each radiation is single The center line of member two and the center line that corresponding scutum three, respective metal graphical set are unified are in the same plane.

Yet further, arrangement is moved towards along same hour hands in the side that dielectric-slab three has radiating element three.

Preferably, side arrangement and dielectric-slab three side with radiating element three of the dielectric-slab four with radiating element four Arrange identical.

More preferably, radiating element two, radiating element three, radiating element four have identical metallic pattern.

Further, the diameter of circular media plate two is not more than the interior diameter for the annulus being made up of the n radiating element one.

Further, n 8, it is in 22.5 ° of angles between adjacent media plate three and dielectric-slab four.

The utility model realizes the narrow beam switched scan of the n sector of road signal of two-band 4, forms the narrow ripples of 2 × 2 MIMO Beam smart antenna, by beam switchover scanning antenna greatest irradiation direction can be made to point to terminal client, radiation pattern The direction of zero point alignment interference, to the space filtering of interference signal, suppresses interference signal, so as to greatly improve radio throughput and Band machine amount, realizes the good purpose of the intensive place communication performance of terminal user.

Brief description of the drawings

Fig. 1 is the schematic perspective view that the utility model narrow beam scans intelligent mimo antenna.

Fig. 2 is that Fig. 1 removes the antenna stereogram after support 51.

Fig. 3 is the Facad structure figure of the circular media plate one of antenna in Fig. 1.

Fig. 4 is the backside structure figure of circular media plate one in Fig. 3.

Fig. 5 is the Facad structure figure of antenna circular media plate two in Fig. 1.

Fig. 6 is the Facad structure figure of the grafting dielectric-slab three of antenna in Fig. 1.

Fig. 7 is the backside structure figure of grafting dielectric-slab four in Fig. 1.

Fig. 8 is media support 3D structure charts in antenna in Fig. 1.

Fig. 9 is that the radiofrequency signal of antenna in Fig. 1 is passed to mode figure.

Figure 10 a are the simulation result figures of antenna in Fig. 1.Antenna VSWR in 2.4GHz~2.5GHz frequency ranges is can be seen that in figure Less than 2.

Figure 10 b are the simulation result figures of antenna in Fig. 1.It can be seen that antenna in 5.15GHz~5.85GHz frequency ranges in figure VSWR is less than 2.

Embodiment

In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining The utility model, it is not used to limit the utility model.

Fig. 1 and Fig. 2 is referred to, narrow beam of the present utility model, which scans intelligent mimo antenna, includes round insulation dielectric-slab one 11st, round insulation dielectric-slab 2 41, n insulation medium board three, n insulation medium board four, dielectric support 51.N is just whole Number and be even number, in the present embodiment, n is illustrated exemplified by 8.Dielectric-slab 1 is coaxially disposed with dielectric-slab 2 41, absolutely Edge dielectric-slab three and insulation medium board four are arranged on dielectric-slab 1 and medium by being plugged on dielectric support 51 to erect Between plate 2 41.

Incorporated by reference to Fig. 3 and Fig. 4, round insulation dielectric-slab 1 is set centered on the central shaft of dielectric-slab 1 in radiation Eight radiating elements one of shape annular layout.Dielectric-slab 1 is situated between towards the front that the face of dielectric-slab 2 41 is dielectric-slab 1 The face that facing away from dielectric-slab 2 41 of scutum 1 is the back side of dielectric-slab 1.

Each radiating element one includes metallic pattern combination one and metallic pattern three.Metallic pattern combination one is arranged on medium Plate 1 it is positive upper and including be in symmetric configuration metallic pattern one and metallic pattern two, as the reference 111 in Fig. 3, 113rd, 115,117,119,121,123,125 be metallic pattern one, reference 112,114,116,118,120,122,124, 110 be corresponding metallic pattern two.Metallic pattern three is arranged on the back side of dielectric-slab 1 and combined with respective metal figure On one corresponding position, therefore eight metallic patterns three are also laid out in a ring using the center of circle of dielectric-slab 1 as the center of circle, such as Fig. 3 In reference 132,133,134,135,136,137,138,139 be metallic pattern three.The metallic pattern three with it is corresponding One signal feed-in point of the coupling of metallic pattern combination one and setting.It is exactly coupling that metallic pattern 111,112 and 132, which is combined, Close the doublet of feed, similarly, metallic pattern 113,114 and 133；Metallic pattern 115,116 and 134；Metallic pattern 117, 118 and 135；Metallic pattern 119,120 and 136；Metallic pattern 121,122 and 137；Metallic pattern 123,124 and 130；Metal The doublet of other seven couple feeds of the composition of figure 125,110 and 131, the doublet of total of eight couple feed, and The radial arrangement in a ring centered on the center of circle of dielectric-slab 1, spaced 45 °, form eight sectors coverings.

Therefore, metallic pattern one and respective metal figure two form eight doublets, and eight doublets are with dielectric-slab One 11 center of circle is that the center of circle is laid out in a ring.On the back side of dielectric-slab 1 in addition to eight metallic patterns three, also set up Circular metal figure 41, circular metal figure 41 and dielectric-slab 1 are concentric, and diameter is less than dielectric-slab 1.Therefore medium Eight doublets on the front of plate 1 are in 45 ° of angles between any two, and eight metallic patterns three at the back side of dielectric-slab 1 are in Eight metallic patterns three at 45 ° of angles, the radial arrangement centered on the center of circle of dielectric-slab 1, and the back side are set respectively Put in the underface of eight doublets.

Each metallic pattern one and corresponding metallic pattern two are positioned at the opposite sides of a dielectric-slab three, two neighboring gold Belong to the opposite sides for being located at a dielectric-slab four between graphical set is unified.

Incorporated by reference to Fig. 5, dielectric-slab 2 41 is coaxially disposed with dielectric-slab 1, and is set with the central shaft of dielectric-slab 2 41 Centered on radial annular layout eight radiating elements two.The diameter of circular media plate 2 41 is not more than single by eight radiation The interior diameter for the annulus that member one is formed.

Dielectric-slab 2 41 facing away from medium towards the front that the face of dielectric-slab 1 is dielectric-slab 2 41, dielectric-slab 2 41 The face of plate 1 is the back side of dielectric-slab 2 41.Each radiating element two is arranged on the front of dielectric-slab 2 41, and each spoke The center line for penetrating the center line and corresponding scutum three, the unification of respective metal graphical set of unit two is in the same plane.

Therefore, eight metallic patterns four are provided with the front of dielectric-slab 2 41, eight metallic patterns four are with dielectric-slab 2 41 The center of circle centered on be in symmetrical annular arrangement, such as the reference 411,412,413,414,415,416,417,418 in Fig. 5. There is a feeder line weld zone as signal feed-in point on each metallic pattern four.Dielectric-slab 2 41 is also provided with metallic pattern five 41, metallic pattern 5 41 is circle, concentric with dielectric-slab 2 41.Metallic pattern six is additionally provided with the back side of dielectric-slab 2 41, and (figure is not Show), metallic pattern sixty percent is circular, concentric with metallic pattern 5 41 and same diameter.Eight metallic patterns four of dielectric-slab 2 41 with Radial arrangement centered on the center of circle of dielectric-slab 2 41, and be in 45 ° of angles between any two.

Eight insulation medium boards three are erected between dielectric-slab 1 and dielectric-slab 2 41 and with the center of dielectric-slab 1 Radial annular layout centered on axle, each dielectric-slab three set a radiating element three.Eight insulation medium boards three are such as attached Reference 21,22,23,24,25,26,27,28 in Fig. 1.

Incorporated by reference to Fig. 6, metallic pattern six is provided with the front of dielectric-slab three, metallic pattern six forms radiating element three Critical piece, including：Active a period of time 212, director 213 and 214, reflector 211.Active a period of time 212, the and of director 213 214th, reflector 211 is arranged in certain intervals ratio.Active a period of time 212 is connected to balanced-unbalanced conversion balun.In Active Phased Array Sub 212 centre positions are additionally provided with feeder line weld zone 210 and are used to weld radio frequency line reception radiofrequency signal.

Eight insulation medium boards four are also erected between dielectric-slab 1 and dielectric-slab 2 41 and with dielectric-slab 1 Radial annular layout centered on mandrel, each dielectric-slab four set a radiating element four, eight dielectric-slabs three and should Eight dielectric-slabs four interlock uniformly at intervals, therefore are in 22.5 ° of angles between adjacent media plate three and dielectric-slab four.Eight dielectrics Reference 31,32,33,34,35,36,37,38 in such as accompanying drawing 1 of plate four.

Incorporated by reference to Fig. 7, on the front of dielectric-slab four, metallic pattern seven is provided with, metallic pattern seven forms radiating element four Critical piece, including active a period of time 312, director 313, reflector 311.Active a period of time 312, director 313, reflector 311 arrange in certain intervals ratio.Active a period of time 312 is connected to balance-imbalance conversion balun.Compared to radiating element four, each Radiating element three is arranged parallel to two directors 213 and 214 of the central shaft of dielectric-slab 1.Among active a period of time 312 Position is additionally provided with feeder line weld zone 314, and radiofrequency signal is received for welding radio frequency line.

Arrangement is moved towards in the side that dielectric-slab three has radiating element three along same hour hands, and dielectric-slab four has radiating element three Side also move towards arrangement along same hour hands, side of the dielectric-slab four with radiating element four is arranged can be with dielectric-slab three with spoke The side arrangement for penetrating unit three is identical.

Incorporated by reference to Fig. 8, dielectric support 51 is fixed between dielectric-slab 1 and dielectric-slab 2 41 and for installing this Eight dielectric-slabs three and eight dielectric-slabs four, the director of each radiating element three and each radiating element four are emerging in Jie Outside matter support 51.

Media support 51 offers eight grooves one and eight grooves two, and eight grooves one and eight grooves two are with media support 51 Center is that the center of circle is arranged in a ring, groove one or eight with eight grooves two are adjacent two-by-two is staggeredly arranged.Eight patch dielectric-slab three and are respectively inserted in In eight grooves one, eight patch dielectric-slab four and are respectively inserted in eight slots two.In other embodiments, as long as can guarantee that medium Layout relationship between plate three and dielectric-slab four, slot can also be not provided with, cohere can also, screens also can.

When in use, media support 51 is fixed on dielectric-slab 1 media support 51, and dielectric-slab 2 41 is fixed on medium On support 51.Dielectric-slab 1, dielectric-slab 2 41 and media support 51 are in three-decker after combining, and coaxially, dielectric-slab 1 Positioned at bottom, media support 51 is located at intermediate layer, dielectric-slab 2 41 and be located at top layer, form whole antenna framework.In this implementation In example, radiating element two, radiating element three, radiating element four have identical metallic pattern, and all metallic patterns can all pass through Printing is arranged on corresponding dielectric-slab.

Incorporated by reference to Fig. 9, the narrow beam scans the four tunnel radiofrequency signals that intelligent mimo antenna receives four frequency ranges, i.e.,：One, justifies Eight a period of time on shape dielectric-slab 1 receive the radiofrequency signal 1 that radiofrequency signal one all the way is frequency range 1；Two, circular medias plates two Eight metallic patterns four on 41 receive the radiofrequency signal 2 that radiofrequency signal two is frequency range 1；Three, eight are patched on dielectric-slab three Metallic pattern six receives the radiofrequency signal three i.e. radiofrequency signal 3 of frequency range 2 all the way；Four, eight patch the metal figure on dielectric-slab four Shape seven receives the radiofrequency signal four i.e. radiofrequency signal 4 of frequency range 4 all the way.

The radiofrequency signal 1 of frequency range 1 is cut into eight tunnels by semiconductor switch, is coupled with the back side of circular media plate 1 On eight metallic patterns 130,131,132,133,134,133,134,135,136,137, signal is passed by way of coupling One 11 positive metallic pattern of circular media plate is sent to, eight metallic pattern combinations receive high-frequency signal, eight metal figures respectively Shape combination radial arrangement in a ring centered on the center of circle of circular media plate one, spaced 45 °, form the narrow ripple in eight directions Beam radiates, spaced 45 ° of the radiation axis of each wave beam, and the radiofrequency signal 1 of frequency range 1 can radiate to eight directions.

The radiofrequency signal 2 of frequency range 1 is cut into eight tunnels by semiconductor switch, be coupled with eight patch dielectric-slab 3 21,22, 23rd, the feed weld zone on 24,25,26,27,28, eight patch the radial arrangement in a ring of dielectric-slab three, between any two mutually 45 ° of interval, the radiofrequency signal 2 of frequency range 2 can radiate to eight directions, 45 ° of radiation axis interval.

The radiofrequency signal 3 of frequency range 2 is cut into eight tunnels by semiconductor switch, be coupled with eight patch dielectric-slab 4 31,32, 33rd, the feed weld zone on 34,35,36,37,38, eight patch the radial arrangement in a ring of dielectric-slab four, between any two mutually 45 ° of interval, the radiofrequency signal 2 of frequency range 2 can radiate to eight directions, 45 ° of radiation axis interval.

The radiofrequency signal 4 of frequency range 2 is cut into eight tunnels by semiconductor switch, is coupled with circular media plate two positive eight Metallic pattern group 411,412,413,414,415,416,417,418, each metallic pattern group are a radiating element groups, are had anti- Emitter and director, signal after reflector reflection and director are guided into, strengthen by beam direction, and wave beam narrows, and gain improves, Signal penetrability is stronger, and covering is farther.Metallic pattern group 411,412,413,414,415,416,417,418 is with circular media plate Radial arrangement in a ring centered on two centers of circle, spaced 45 °, the radiofrequency signal 4 of frequency range 4 can radiate to eight directions, spoke Penetrate 45 ° of axis interval.

Such Antenna Design can realize the narrow beam switched scan of 4 road signal of two-band, 8 sectors, form 2 × 2MIMO narrow beam smart antennas, by beam switchover scanning and intelligent algorithm, antenna greatest irradiation direction is set to point to terminal visitor Family, radiation pattern zero point is directed at the direction of interference, to the space filtering of interference signal, suppresses interference signal, so as to Greatly improve radio throughput and with machine amount, realize the good purpose of the intensive place communication performance of terminal user.

In the present embodiment, metal can use copper, and metal surface can be handled：Coat green oil.It is of the present utility model more The working band of beam scanning intelligence mimo antenna can be 2.412~2.484GHz and 5.15~5.85GHz.Circular media Plate 1 is preferably dimensioned to be radius 80mm, 1mm thickness, and the preferred radius of size of circular media plate 2 41 is 40mm, and eight patch The preferred size 40*30*1mm of dielectric-slab 3 21,22,23,24,25,26,27,28, eight patch dielectric-slab 4 31,32,33, 34th, 35,36,37,38 preferred size is 50*50*1mm.

Designed more than, multi-beam is scanned the impedance operator of intelligent mimo antenna, antenna gain, standing-wave ratio, isolation The performance parameters such as degree, E faces and H faces 3dB lobe widths meet to require, so as to obtain a kind of inexpensive, high communication efficiency, high communication The indoor AP intelligence mimo antenna of capacity, high anti-interfering performance.The working frequency range 2.412 of AP intelligence MIMO AP antennas~ 2.484GHz 5.15~5.85GHz；2.4G band gains are more than 4.5dBi；Standing-wave ratio is less than 2；Interport isolation be less than- 20dB；Characteristic impedance is 50 Ω；5.0G band gains are more than 5.0dBi；Standing-wave ratio is less than 2；Interport isolation is less than -22dB； Characteristic impedance is 50 Ω；Joint style is IPX band radio shielding lines, and it is optional to shield line length.The present embodiment is by described chi Very little fixation, its cost is set to reach minimum, installation is simple, and communication performance is good, and its multi-beam scans the part of intelligent mimo antenna Simulation result is as as-shown-in figures 10 a and 10b.

Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model Protection domain within.

Claims (10)

1. a kind of narrow beam scans intelligent mimo antenna, it includes：

Round insulation dielectric-slab one (11), it sets the radial annular layout centered on the central shaft of dielectric-slab one (11) N radiating element one, n are positive integer and are even number；

Round insulation dielectric-slab two (41), it is coaxially disposed with dielectric-slab one (11), and sets with the center of dielectric-slab two (41) The n radiating element two of radial annular layout centered on axle；

N insulation medium board three, it is erected between dielectric-slab one (11) and dielectric-slab two (41) and with dielectric-slab one (11) Radial annular layout centered on central shaft, each dielectric-slab three set a radiating element three；

It is characterized in that：It also includes：

N insulation medium board four, it is erected between dielectric-slab one (11) and dielectric-slab two (41) and with dielectric-slab one (11) Radial annular layout centered on central shaft, each dielectric-slab four set a radiating element four, the n dielectric-slab three and this N dielectric-slab four interlocks uniformly at intervals.

2. narrow beam as claimed in claim 1 scans intelligent mimo antenna, it is characterised in that：Dielectric support (51), its It is fixed between dielectric-slab one (11) and dielectric-slab two (41) and for installing the n dielectric-slab three and the n dielectric-slab four, often The director of individual radiating element three and each radiating element four is emerging in media support (51) outside.

3. narrow beam as claimed in claim 2 scans intelligent mimo antenna, it is characterised in that：Media support (51) offer with The center of media support (51) is the center of circle and the n groove one and n groove two arranged in a ring, and groove one and groove two adjacent mistake two-by-two Open arrangement；N dielectric-slab three is respectively inserted in n groove one, and n dielectric-slab four is respectively inserted in n slot two.

4. narrow beam as claimed in claim 1 scans intelligent mimo antenna, it is characterised in that：Dielectric-slab one (11) is towards medium The face of plate two (41) is the front of dielectric-slab one (11), and the face that facing away from dielectric-slab two (41) of dielectric-slab one (11) is dielectric-slab The back side of one (11)；

Each radiating element one includes：Metallic pattern combination one, it is positive above and including being in pair that it is arranged on dielectric-slab one (11) Claim the metallic pattern one and metallic pattern two of layout；Metallic pattern three, its be arranged on dielectric-slab one (11) back side and with phase Metallic pattern is answered to combine on a corresponding position, the metallic pattern three combines a coupling and setting one with corresponding metallic pattern Individual signal feed-in point.

5. narrow beam as claimed in claim 4 scans intelligent mimo antenna, it is characterised in that：Each metallic pattern one and corresponding Metallic pattern two positioned at the opposite sides of dielectric-slab three, be located at a medium between two neighboring metallic pattern combination one The opposite sides of plate four.

6. narrow beam as claimed in claim 4 scans intelligent mimo antenna, it is characterised in that：Dielectric-slab two (41) is towards medium The face of plate one (11) is the front of dielectric-slab two (41), and the face that facing away from dielectric-slab one (11) of dielectric-slab two (41) is dielectric-slab The back side of two (41)；Each radiating element two is arranged on the front of dielectric-slab two (41), and the center of each radiating element two Line and the center line that corresponding scutum three, respective metal graphical set are unified are in the same plane.

7. narrow beam as claimed in claim 6 scans intelligent mimo antenna, it is characterised in that：Dielectric-slab three has radiating element Arrangement is moved towards in three side along same hour hands, and side arrangement of the dielectric-slab four with radiating element four is with dielectric-slab three with radiation The side arrangement of unit three is identical.

8. narrow beam as claimed in claim 7 scans intelligent mimo antenna, it is characterised in that：Radiating element two, radiating element 3rd, radiating element four has identical metallic pattern.

9. narrow beam as claimed in claim 8 scans intelligent mimo antenna, it is characterised in that：Each radiating element three sets flat Row is in two directors of the central shaft of dielectric-slab one (11).

10. narrow beam as claimed in claim 1 scans intelligent mimo antenna, it is characterised in that：N is 8, the He of adjacent media plate three It is in 22.5 ° of angles between dielectric-slab four.