CN108270080A - Millimeter wave array antenna system based on metal fuselage - Google Patents

Millimeter wave array antenna system based on metal fuselage Download PDF

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Publication number
CN108270080A
CN108270080A CN201710002349.2A CN201710002349A CN108270080A CN 108270080 A CN108270080 A CN 108270080A CN 201710002349 A CN201710002349 A CN 201710002349A CN 108270080 A CN108270080 A CN 108270080A
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CN
China
Prior art keywords
antenna
metal fuselage
slot antenna
slot
millimeter wave
Prior art date
Application number
CN201710002349.2A
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Chinese (zh)
Inventor
赵安平
艾付强
Original Assignee
深圳市信维通信股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 深圳市信维通信股份有限公司 filed Critical 深圳市信维通信股份有限公司
Priority to CN201710002349.2A priority Critical patent/CN108270080A/en
Publication of CN108270080A publication Critical patent/CN108270080A/en

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/44Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/50Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • H01Q21/0006Particular feeding systems
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • H01Q21/06Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/08Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path

Abstract

The invention discloses a kind of millimeter wave array antenna systems based on metal fuselage, and including metal fuselage and array antenna, the array antenna is located on the metal fuselage;The array antenna includes more than two slot antennas, and the slot antenna is embedded in the metal fuselage, and the slot antenna carries out couple feed by surveying the microstrip line of arrangement in metal shell.Millimeter wave array antenna system provided by the invention based on metal fuselage, suitable for the mobile terminal of metal fuselage, and the size for forming the slot antenna of aerial array is smaller, does not interfere with the globality of mobile terminal.

Description

Millimeter wave array antenna system based on metal fuselage
Technical field
The present invention relates to antenna technical field more particularly to a kind of millimeter wave array antenna systems based on metal fuselage.
Background technology
At present, the whole world is gradually heating up for the research and development of the 5th generation (5G) wireless communication technique, countries in the world and each master Flow standard tissue has all had been observed that the urgency of 5G technologies development, and has formulated corresponding research and development propulsion plan, becomes The research hotspot of moving communicating field.For example, European Union starts the METIS researched and developed towards 5G in the 7th framework planning at the beginning of 2013 Project;On July 15th, 2016, Federal Communications Commission (FCC) define the following millimeter wave frequency band for being used for 5G:28GHz (27.5-28.35GHz), 37GHz (37-38.6GHz) and 39GHz (38.6-40GHz).At present, many famous movements in the world Terminal device manufacturer is planned to will to realize standard configuration of the 5G functions as its mobile terminal product of new generation, and it is contemplated that The year two thousand twenty realizes the commercialization of 5G.
To achieve these goals, design be suitable for mobile phone terminal effective millimeter wave antenna array be must not The important link that can lack.In addition, in order to enhance the texture of handheld device and intensity, metal fuselage has been widely used in hand In holding equipment.Although 2G, 3G and 4G Antenna Design suitable for metal fuselage are ripe, due to 5G millimeter wave antenna battle arrays How the particularity of row, design that be suitable for the 5G millimeter wave antennas array of metal fuselage will be that we to be faced and be badly in need of solving Matter of utmost importance certainly.
Invention content
The technical problems to be solved by the invention are:It provides one kind to wirelessly communicate for the 5th generation, suitable for metal fuselage Millimeter wave array antenna system.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is:
A kind of millimeter wave array antenna system based on metal fuselage, including metal fuselage and array antenna, the array Antenna is located on the metal fuselage;The array antenna includes more than two slot antennas, and the slot antenna is embedded in institute It states in metal fuselage.
The beneficial effects of the present invention are:Radiating element of the gap as antenna is opened up on metal fuselage, by multiple Radiating element forms the aerial array suitable for millimeter wave, overcomes shielding action of the metal fuselage to wireless signal;Due to opening If slot antenna it is smaller, so the globality of metal fuselage can't be influenced, low-loss can also be filled in slot antenna Material keeps its aesthetics and integrality.
Description of the drawings
Fig. 1 is the structure diagram of the T shape slot antenna arrays of the embodiment of the present invention one;
Fig. 2 is that the open circuit form of the T shape slot antennas of the embodiment of the present invention one feeds schematic diagram;
Fig. 3 is that the open circuit form of T shapes slot antenna shown in Fig. 2 feeds side view;
Fig. 4 is that the short circuit mode of the T shape slot antennas of the embodiment of the present invention one feeds schematic diagram;
Fig. 5 is the short circuit mode feed point side view of T shapes slot antenna shown in Fig. 3;
Fig. 6 is the S parameter figure of the T shape slot antenna arrays of the embodiment of the present invention one;
Fig. 7 a are T antenna array shown in FIG. 1 working frequency is 28GHz, scanning angle (theta) is 0 degree of condition 3 dimension far-field radiation patterns of lower aerial array;
Fig. 7 b are T antenna array shown in FIG. 1 working frequency is 28GHz, scanning angle (theta) is 20 degree of conditions 3 dimension far-field radiation patterns of lower aerial array;
Fig. 7 c are T antenna array shown in FIG. 1 working frequency is 28GHz, scanning angle (theta) is 40 degree of conditions 3 dimension far-field radiation patterns of lower aerial array;
Fig. 8 is the antenna gain in the case of different scanning angle (theta) in T antenna array XZ planes shown in FIG. 1 Characteristic curve;
Fig. 9 is the structure diagram when T shape slot arrays of the embodiment of the present invention two are listed in application on mobile phone terminal;
Figure 10 a be T shapes slot array shown in Fig. 9 be listed in working frequency be 28GHz, scanning angle (theta) be 0 degree Under the conditions of aerial array 3 dimension far-field radiation patterns;
Figure 10 b be T shapes slot array shown in Fig. 9 be listed in working frequency be 28GHz, scanning angle (theta) be 20 3 dimension far-field radiation patterns of aerial array under the conditions of degree;
Figure 10 c be T shapes slot array shown in Fig. 9 be listed in working frequency be 28GHz, scanning angle (theta) be 40 3 dimension far-field radiation patterns of aerial array under the conditions of degree;
Figure 11 is that the antenna gain of the different scanning angle (theta) in XZ planes of aerial array shown in Fig. 9 is special Property;
Figure 12 is the schematic diagram that the rectangular slot aerial array of the embodiment of the present invention two is applied on mobile phone terminal;
Figure 13 a be rectangular slot aerial array shown in Figure 12 working frequency be 28GHz, scanning angle (theta) 3 dimension far-field radiation patterns of aerial array under the conditions of being 0 degree;
Figure 13 b are rectangular slot aerial array shown in Figure 12 working frequency is 28GHz, scanning angle is (theta) under the conditions of 20 degree aerial array 3 dimension far-field radiation patterns;
Figure 13 c are rectangular slot aerial array shown in Figure 12 working frequency is 28GHz, scanning angle is (theta) under the conditions of 40 degree aerial array 3 dimension far-field radiation patterns;
Figure 14 different scanning angle (theta) in XZ planes for the rectangular slot aerial array shown in Figure 12 Antenna gain characteristics;
Figure 15 is aerial array far-field characteristic gain profiles YZ plane in of the present invention as shown in Fig. 1, Fig. 9 and Figure 12 Compare figure;
Figure 16 is the structure diagram that the T shape slot antenna arrays of the embodiment of the present invention two are all located on back casing;
Figure 17 is the structure diagram that the T shape slot antenna arrays of the embodiment of the present invention two are all located on side body;
Figure 18 is present invention far-field characteristic gain of the aerial array in YZ planes as shown in Fig. 1, Figure 16 and Figure 17 point Cloth compares figure.
Label declaration:
1st, aerial array;2nd, slot antenna;3rd, the first gap branch;4th, the second gap branch;
5th, microstrip line;6th, metal rear shell;7th, dielectric layer;8th, conductive column;9th, mobile terminal;
10th, metal fuselage;11st, back casing;12nd, side body.
Specific embodiment
For the technology contents that the present invention will be described in detail, the objects and the effects, below in conjunction with embodiment and coordinate attached Figure is explained.
The design of most critical of the present invention is:Radiating element of the gap as antenna is opened up on metal fuselage, by more A radiating element forms the aerial array suitable for millimeter wave, overcomes shielding action of the metal fuselage to wireless signal.
Please refer to Fig. 1, a kind of millimeter wave array antenna system based on metal fuselage, including metal fuselage and array day Line, the array antenna are located on the metal fuselage;The array antenna includes more than two slot antennas, the gap day Line is embedded in the metal fuselage.
As can be seen from the above description, the beneficial effects of the present invention are:Spoke of the gap as antenna is opened up on metal fuselage Unit is penetrated, the aerial array suitable for millimeter wave is formed by multiple radiating elements, overcomes metal fuselage to wireless signal Shielding action;Since the slot antenna opened up is smaller, so the globality of metal fuselage can't be influenced, it can also be in gap day Low-loss material is filled in line to keep its aesthetics and integrality.
Further, the metal fuselage is equipped with a dielectric layer, and the slot antenna is connected by the dielectric layer A microstrip line is connect to be fed.
Seen from the above description, it is needed when the traditional microstrip line of use feeds slot antenna through a dielectric Layer, the mode of feed can be that the mode opened a way couples or the mode of short circuit couples.
Further, a conductive column, the end of the microstrip line are equipped with close to the metal fuselage of described slot antenna one end End is grounded by the conductive column.
Seen from the above description, can short circuit mode be used by a conductive column when microstrip line carries out slot antenna feed point Coupled modes carry out.
Further, the metal fuselage includes back casing, and the aerial array is set on the back casing.
Further, the metal fuselage includes side body, and the aerial array is set on the side body.
Further, the metal fuselage includes back casing and side body, and the part of the slot antenna is set on the side On housing, the slot antenna is not set on the part on the side body and is set on the back casing.
Seen from the above description, slot antenna array can be arranged on side body or back casing as needed;Either Part is located at back casing positioned at side body part so that slot antenna can generate more uniform radiation profiles in far field.
Further, the slot antenna includes the first gap branch and the second gap branch of strip;Described second One end of gap branch is connect with the intermediate region of the first gap branch, and the other end is far from the first gap branch.
Seen from the above description, slot antenna includes the first gap branch and the second gap branch of strip, can make it The electric current being distributed around the circular gap branch generated has preferable uniformity.
Further, one end of the second gap branch is connect with the midpoint of the first gap branch.
Further, the first gap branch and the second gap branch are rectangle branch, the first gap branch Length be wavelength corresponding to the slot antenna working frequency 1/2;The length of the second gap branch is the gap 1/4 of wavelength corresponding to operating frequency of antenna.
Seen from the above description, the structure feature of rectangular slat can further ensure the circular gap being generated by it point The electric current being distributed around branch is uniformly distributed effect with best;Second gap branch is equivalent to traditional rectangular slot day Line, the length of traditional rectangular slot branch are 1/2 or so of wavelength corresponding to its working frequency.Therefore, from the length of antenna Degree direction sees that the slot antenna of the application compares traditional rectangular slot antenna, has the advantages that be substantially reduced overall dimensions, Microminiature terminal can be preferably suitable for.
Further, the slot antenna is rectangular slot antenna, and the length of the slot antenna is the gap day The 1/2 of wavelength corresponding to line working frequency.
Further, the spacing between two neighboring slot antenna is wavelength corresponding to the slot antenna working frequency 1/2~1.
Seen from the above description, the spacing between each slot antenna meets the requirement of millimeter wave antenna array.
Further, the width of the first gap branch and the second gap branch is 0.01-2mm.
Further, the width of the first gap branch and the second gap branch is 0.5mm.
Seen from the above description, aerial radiation effect of the width of gap branch in 0.5mm is preferable.
Further, the width of the rectangular slot antenna is 0.01-2mm.
Further, the width of the rectangular slot antenna is 0.5mm.
Further, it is T-shaped to form one for the first gap branch and the second gap branch vertical connection.
Further, the first gap branch connect to form a Y-shaped with the second gap branch.
Further, the first gap branch connect to form an arrow-shaped with the second gap branch.
Seen from the above description, slot antenna can be designed as to T-shaped, Y-shaped or arrow-shaped, metal can be overcome Radiation effect is realized in shielding action of the fuselage to wireless signal.
Embodiment one
Fig. 1 to Fig. 8 is please referred to, the embodiment of the present invention one is:A kind of millimeter wave array antenna system based on metal fuselage System suitable for the 5th generation wireless communication system, by the application of millimeter wave array antenna system on mobile terminals, can overcome metal machine Shielding action of the body to wireless signal, the terminal can be the mobile terminals that mobile phone, tablet etc. have antenna requirements.
In the present embodiment, as shown in Figure 1, only metal rear shell 6 is metal material, other housing positions of mobile terminal are Non-metallic material.The millimeter wave antenna array 1 includes more than two slot antennas 2, it is preferred that antenna described in the present embodiment Array 1 includes 8 slot antennas 2.Slot antenna 2 is embedded in the metal rear shell 6, and positioned at the edge of metal rear shell 6 Position, naturally it is also possible to be located at the other positions of metal rear shell 6, be not limited to marginal position.The slot antenna 2 includes The the first gap branch 3 and the second gap branch 4 of strip, 3 and second gap branch of the first gap branch, 4 vertical connection And formation one is T-shaped, i.e., one end of the second gap branch 4 is connect with the midpoint of the first gap branch 3, makes the first gap branch 3 The radiation intensity on tie point both sides is identical, and 2 overall current of slot antenna is more evenly distributed.
Aerial array 1 may be used series connection not decile power feeds network either constant power feeding network in parallel or other Feeding classification is fed, and the aerial array 1 of the present embodiment feeds it by constant power feeding network in parallel.Tool Body, the present embodiment carries out couple feed by microstrip line to slot antenna.When being fed by microstrip line to slot antenna There are two types of different modes:Short circuit and open circuit.The mode for open circuit, the slot antenna 2 pass through micro-strip as shown in Figures 2 and 3 Line 5 carries out couple feed, and dielectric layer 7 is equipped between microstrip line 5 and metal rear shell 6, in order to meet the requirement of millimeter wave, electricity Dielectric layer 7 is using the smaller material of loss, such as Rogers (Rogers) material.It is the side using short circuit as shown in Figure 4 and Figure 5 Formula is fed, and a conductive column 8 is equipped in the metal rear shell 6 close to 2 one end of slot antenna, the end of the microstrip line 5 leads to It crosses the conductive column 8 to connect with ground plane, likewise, slot antenna 2 connects microstrip line 5 by dielectric layer 7 carries out coupling feedback Electricity.
In the present embodiment, the length of the first gap branch 3 is 1/2 of wavelength corresponding to 2 working frequency of slot antenna; The length of the second gap branch 4 is 1/4 of wavelength corresponding to 2 working frequency of slot antenna, and first gap is divided The width of 3 and second gap branch 4 of branch can be set as needed, it is preferred that the 3 and second gap branch of the first gap branch 4 width is 0.01-2mm, further preferred 0.5mm.Spacing between two neighboring slot antenna 2 is the slot antenna 2 1/2~1 of wavelength corresponding to working frequency can be selected as the case may be.In order not to destroy the appearance of metal fuselage, Low-loss material can be filled at slot antenna 2.
Surface current distribution on antenna radiator determine antenna 3 dimension far fields radiation intensity distribution, no matter gap How is the shape of antenna, and the surface current of slot antenna radiator is distributed around around slot antenna.This implementation Example is using T-shaped slot antenna as the radiating element of millimeter wave array antenna, it with stronger along the second gap in addition to dividing Outside distributed current on the length direction of branch 4, while also with the stronger length direction along the first slot antenna branch 3 Distributed current.Furthermore since the Liang Ge branches of T-shaped slot antenna are orthogonal, so in the remote of T-shaped slot antenna Field radiation profiles have good uniformity, can be good at that traditional rectangular slot antenna is overcome only to have along its length Distributed current, in the non-uniform shortcoming of remote radiation intensity.
Specifically, as shown in fig. 6, S parameter figure for T shapes slot antenna array shown in FIG. 1, eight curves point in figure Not Dui Ying 8 T shapes slot antennas 2 S parameter curve, wherein a uppermost curve for one of slot antenna 2 S join Number curve, following seven curves coupled for other seven slot antennas 2 with one of slot antenna 2 after S parameter Curve.It can be seen from the figure that the slot antenna 2 is operated in the millimere-wave band of 28GHz;And between slot antenna 2 Mutual coupling is less than -14.6dB, meets the beam forming of aerial array and the requirement of scanning.Fig. 7 a, Fig. 7 b and Fig. 7 c are respectively Fig. 6 institutes The aerial array shown is respectively 0 degree, 20 degree and 40 degree feelings for 28GHz, scanning angle (theta, with Z axis angle) in working frequency 3 dimension far-field radiation patterns of aerial array under condition.Fig. 8 is day of the aerial array in XZ planes under different scanning angle case Line gain characteristic curve.When the numerical value of abscissa is -90, the corresponding scan angle of curve from top to bottom is respectively 50 degree, 40 It spends, 30 degree, 0 degree, 10 degree and 20 degree.It can be seen that the millimeter in the present embodiment from the result in Fig. 7 a, Fig. 7 b, Fig. 7 c and Fig. 8 Wave antenna array has the characteristic of good beam forming and beam scanning.
In another specific embodiment, the first gap branch 3 connect with the second gap branch 4 forms a Y Font.
In another specific embodiment, the first gap branch 3 connect with the second gap branch 4 forms an arrow Capitiform.
In other specific embodiments, the first gap branch 3 and the second gap branch 4 can also use other connections Mode is not limited to above-mentioned T-shaped, Y-shaped or sagittate connection mode.
Embodiment two
Fig. 9 to Figure 18 is please referred to, the present embodiment is on the basis of embodiment one, the back casing 11 of metal fuselage 10 and side shell Body 12 is metal material.
Specifically, the mobile terminal 9 includes metal fuselage 10, the aerial array 1 is located at the metal fuselage 10 Marginal position, it is of course possible to be arranged on the intermediate position of metal fuselage 10.The metal fuselage 10 includes back casing 11 and side shell Body 12.As shown in figure 9, for a kind of specific embodiment in the present embodiment, the aerial array 1 includes 8 T shape slot antennas 2, the first gap branch 3 of the slot antenna 2 is set on the side body 12, and 4 part of the second gap branch is set on On the side body 12, another part is set on the back casing 11.Figure 10 a, Figure 10 b and Figure 10 c are respectively T shown in Fig. 9 It is respectively antenna in the case of 0 degree, 20 degree and 40 degree that shape slot array, which is listed in working frequency as 28GHz, scanning angle (theta), 3 dimension far-field radiation patterns of array.Figure 11 is that antenna of the aerial array shown in Fig. 9 in XZ planes under different scanning angle case increases Beneficial characteristic.When the numerical value of abscissa is -90, the corresponding scan angle of curve from top to bottom is respectively 50 degree, 40 degree, 30 degree, 0 It spends, 10 degree and 20 degree.It can be seen that the millimeter wave antenna array also has very well from Figure 10 a, Figure 10 b, Figure 10 c and Figure 11 Beam forming and beam scanning characteristic.
Another specific embodiment of the present embodiment is that as shown in figure 12, a part for rectangular slot antenna is located at On back casing 11, another part is located on side body 12, and the length of the rectangular slot antenna is the rectangular slot day The 1/2 of wavelength corresponding to line working frequency, the width of slot antenna can be set as needed, preferable width 0.01- 2mm, further preferred 0.5mm, the spacing between two neighboring slot antenna are wave corresponding to the slot antenna working frequency Long 1/2~1.The slot antenna on back casing 11 is vertical with the slot antenna on side body 12 at this time, therefore also can be Far field, which generates, more uniformly to be radiated, and the aerial array in figure contains 8 rectangular slot antennas.Figure 13 a, Figure 13 b and figure 13c is respectively rectangular slot aerial array shown in Figure 12 working frequency is 28GHz, scanning angle (theta) is respectively 0 It spends, 3 dimension far-field radiation patterns of aerial array in the case of 20 degree and 40 degree.Figure 14 for aerial array shown in Figure 12 in XZ planes not With the antenna gain characteristics in the case of scanning angle.When the numerical value of abscissa is -90, the corresponding scanning of curve from top to bottom Angle is respectively 50 degree, 40 degree, 30 degree, 0 degree, 10 degree and 20 degree.It is from Figure 13 a, Figure 13 b, Figure 13 c and Figure 14 it can be seen that described Rectangular millimeter wave antenna array also has the characteristic of good beam forming and beam scanning.
Figure 15 is that far-field characteristic gain profiles of the aerial array in YZ planes shown in Fig. 1, Fig. 9 and Figure 12 compare figure. Solid line represents aerial array shown in FIG. 1 in figure, and the dotted line comprising inverted triangle represents aerial array shown in Fig. 9, comprising rectangular Dotted line represent aerial array shown in Figure 12.
As shown in figure 16, in another specific embodiment, the aerial array 1 of T shapes is entirely located on back casing 11.
As shown in figure 17, in another specific embodiment, the aerial array 1 of T shapes is entirely located on side body 12.
Figure compared with Figure 18 is the far-field characteristic gain profiles of Fig. 1, Figure 16 and the aerial array shown in Figure 17 in YZ planes. Solid line represents aerial array shown in FIG. 1 in figure, and the dotted line comprising positive triangle represents the aerial array shown in Figure 16, includes pros The dotted line of shape represents the aerial array shown in Figure 17.From Figure 15 and Figure 18 as can be seen that since aerial array is in metal fuselage The difference of upper distributing position, there is also certain differences for the far-field radiation distribution of corresponding aerial array.For example, work as antenna array A part for row 1 is distributed on back casing 11, and when another part is distributed on side body 12, no matter antenna radiation unit is rectangular Shape gap either T-shaped gap, the far-field radiation direction of aerial array have very high similitude.Designer can utilize upper The difference feature stated, selects the distribution form of aerial array under specific application environment accordingly.
Although the millimeter wave frequency band of embodiment one and embodiment two using 28GHz are illustrated as specific embodiment, this hair The slot antenna array proposed in bright scheme is also applied for other millimeter wave frequency bands, does not just repeat one by one herein.
In conclusion the millimeter wave array antenna system provided by the invention based on metal fuselage, suitable for metal fuselage Mobile terminal, and the size for forming the slot antenna of aerial array is smaller, does not interfere with the globality of mobile terminal.
The foregoing is merely the embodiment of the present invention, are not intended to limit the scope of the invention, every to utilize this hair The equivalents that bright specification and accompanying drawing content are made directly or indirectly are used in relevant technical field, similarly include In the scope of patent protection of the present invention.

Claims (10)

1. a kind of millimeter wave array antenna system based on metal fuselage, which is characterized in that including metal fuselage and array antenna, The array antenna is located on the metal fuselage;The array antenna includes more than two slot antennas, the slot antenna It is embedded in the metal fuselage.
2. the millimeter wave array antenna system according to claim 1 based on metal fuselage, which is characterized in that the metal Fuselage is equipped with a dielectric layer, and the slot antenna connects a microstrip line by the dielectric layer and fed.
3. the millimeter wave array antenna system according to claim 2 based on metal fuselage, which is characterized in that close to described The metal fuselage of slot antenna one end is equipped with a conductive column, and the end of the microstrip line is grounded by the conductive column.
4. the millimeter wave array antenna system according to claim 3 based on metal fuselage, which is characterized in that the metal Fuselage includes back casing, and the aerial array is set on the back casing.
5. the millimeter wave array antenna system according to claim 3 based on metal fuselage, which is characterized in that the metal Fuselage includes side body, and the aerial array is set on the side body.
6. the millimeter wave array antenna system according to claim 3 based on metal fuselage, which is characterized in that the metal Fuselage includes back casing and side body, and the part of the slot antenna is set on the side body, and the slot antenna is not set on Part on the side body is set on the back casing.
7. according to millimeter wave array antenna system of the claim 1-6 any one of them based on metal fuselage, which is characterized in that The slot antenna includes the first gap branch and the second gap branch of strip;One end of the second gap branch and the The intermediate region connection of one gap branch, the other end is far from the first gap branch.
8. the millimeter wave array antenna system according to claim 7 based on metal fuselage, which is characterized in that described first Gap branch and the second gap branch are rectangle branch, and the length of the first gap branch is slot antenna work frequency 1/2 of wavelength corresponding to rate;The length of the second gap branch is 1/ of wavelength corresponding to the slot antenna working frequency 4。
9. according to millimeter wave array antenna system of the claim 1-6 any one of them based on metal fuselage, which is characterized in that The slot antenna is rectangular slot antenna, and the length of the slot antenna is wave corresponding to the slot antenna working frequency Long 1/2.
10. according to the millimeter wave array antenna system of claim 1-6,8 any one of them based on metal fuselage, feature exists In the spacing between two neighboring slot antenna is 1/2~1 of wavelength corresponding to the slot antenna working frequency.
CN201710002349.2A 2017-01-03 2017-01-03 Millimeter wave array antenna system based on metal fuselage CN108270080A (en)

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PCT/CN2017/081811 WO2018126563A1 (en) 2017-01-03 2017-04-25 Millimeter wave array antenna system based on metal fuselage

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CN108987945A (en) * 2018-07-24 2018-12-11 维沃移动通信有限公司 A kind of terminal device
CN108987944A (en) * 2018-07-24 2018-12-11 维沃移动通信有限公司 A kind of terminal device
CN109066068A (en) * 2018-07-24 2018-12-21 Oppo广东移动通信有限公司 Antenna module and electronic equipment
CN109088160A (en) * 2018-08-12 2018-12-25 瑞声科技(南京)有限公司 antenna system and mobile terminal
CN109119746A (en) * 2018-08-23 2019-01-01 北京小米移动软件有限公司 Terminal shell and terminal
CN109193134A (en) * 2018-09-14 2019-01-11 维沃移动通信有限公司 A kind of terminal device antenna
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