CN208299031U - A kind of planar broad band millimeter wave mimo antenna - Google Patents
A kind of planar broad band millimeter wave mimo antenna Download PDFInfo
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- CN208299031U CN208299031U CN201820854105.7U CN201820854105U CN208299031U CN 208299031 U CN208299031 U CN 208299031U CN 201820854105 U CN201820854105 U CN 201820854105U CN 208299031 U CN208299031 U CN 208299031U
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- radiating element
- bar shaped
- medium substrate
- shaped patch
- millimeter wave
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Abstract
The utility model discloses a kind of planar broad band millimeter wave mimo antennas, including medium substrate, excitation port, floor and the first and second radiating element group；First radiating element group is made of the first and second radiating element, first radiating element is formed by connecting by two bar shaped patches not in the same direction, wherein a bar shaped patch connects excitation port, another bar shaped patch is close to medium substrate center, second radiating element is a bar shaped patch, close to the first radiating element close to that bar shaped patch at medium substrate center；Second radiating element group is made of third and fourth radiating element, third radiating element is formed by connecting by two bar shaped patches not in the same direction, wherein a bar shaped patch connects floor one end, another bar shaped patch is close to medium substrate center, the floor other end connects excitation port, 4th radiating element is a bar shaped patch, close to third radiating element close to that bar shaped patch at medium substrate center.The utility model is individually controllable, and characteristic is good.
Description
Technical field
The utility model relates to the technical fields of millimeter wave antenna, refer in particular to a kind of planar broad band millimeter wave MIMO days
Line.
Background technique
Millimeter wave refers to electromagnetic wave of the frequency within the scope of 30GHz-300GHz, and corresponding wave-length coverage is 1mm-
10mm.In recent years, the status crowded due to frequency spectrum resource, and to high-speed communication demand sustainable growth, millimeter wave field is
An extremely active field as the research of international electromagnetic wave frequency spectrum resource, development and utilization.Millimeter wave frequency band possesses greatly
Continuous frequency spectrum resource is measured, the realization for ultrahigh speed broadband wireless communications provides possibility.
2010, millimeter wave National Key Laboratory of Southeast China University proposed to develop the nearly telecommunication standards Q- of China's millimeter wave
LINKPAN (Q indicates the Q- wave band in 40~50GHz here, and LINKPAN expression can both support short distance high speed covering (PAN),
Can also support long distance high-speed transfer (LINK)), and conduct a research in the same year.The IEEE802.11aj of in September, 2012 task groups (TG)
It is formal to set up.It includes 59~64GHz and 43.5~47GHz two that the standard, which mainly pushes by the enterprise of China and research institution,
Frequency range, wherein IEEE802.1laj (45GHz) is based primarily upon short range standard Q-LINKPAN-S.In December, 2013, Ministry of Industry and Information point
It Fa Bu not point-to-point wireless access system and mobile service middle width strip wireless access system frequency in 40~50GHz frequency range fixed service
Rate uses the notice of matters.Short distance high rate communication (PAN) is assigned with 5.9GHz (42.3GHz-47GHz, 47.2GHz-
48.4GHz), the mobile service planning in frequency range is used for broadband wireless access system, and remote high rate communication (LINK) divides
Match 3.6GHz (40.5GHz-42.3GHz, 48.4GHz-50.2GHz), the fixed service planning in frequency range is used for point-to-point nothing
Line access system.These millimetre-wave attenuator technologies for showing China will be unfolded in Q- wave band.
The physical layer transmission proposed adoption multiple-input and multiple-output MIMO technology of Q-LINKPAN or IEEE802.1laj (45GHz)
(i.e. MIMO technique).The technology can effectively improve wireless communication system under the conditions of limited frequency spectrum resource
Therefore capacity and reliability are also widely applied in many wireless communication systems.Millimeter wave frequency band is in mobile communication system
In use, will allow load hundreds of antenna on base station, and and can work at the same time, therefore this key technology is also referred to as
"Massive MIMO".The development of China's millimetre-wave attenuator technology both designs to millimeter wave antenna and provides opportunity, while also bringing
Challenge.Meanwhile with the high speed development of mobile intelligent terminal, the design of the millimeter wave antenna applied to mobile phone terminal will also become
The hot and difficult issue of future studies.
The research and utility model of millimeter wave antenna and mimo antenna uncoupling have been achieved for certain achievement.With
The fast development of millimeter wave wireless communication, the focusing on of many researchs how to realize millimeter wave antenna it is broadband on.Not
In few millimeter wave antenna research and utility model design, SIW (substrate integration wave-guide), multi-layer PCB (printed circuit board), LTCC
Technologies such as (low temperature charcoal burn ceramics) are mentioned and use.Due to opening for free for 60GHz frequency range, quite a few utility model
Antenna Design is mainly applied to the frequency range, and applies the utility model in the millimeter wave antenna of Q- wave band, then relatively smaller very much.
In terms of mimo antenna, miniaturization, the research and design of broadband antenna has also received attention.Many relevant utility models
Oneself proposes a variety of methods for improving the isolation between small-sized mimo antenna unit.And apply small-sized MIMO days in Q- wave band
The utility model of line design is considerably less.
Amer Hagras et al. is in 2012 in IEEE Antennas and Propagation Society
International Symposium delivers entitled " Low-mutual coupling antenna array for
The article of millimeter-wave MIMO applications ", the Antenna Operation is in 60GHz frequency range, using dielectric resonance day
Line is etched in the line of rabbet joint on floor for " truncation " surface current as element antenna, and the metal tape between two antennas is in day
Line is equivalent to a resonant element when working, the two measures can reduce the mutual coupling between antenna element.
In the design of existing millimeter wave antenna, mainly consider how to increase impedance bandwidth problem, and consider that performance is only
Controllable problem is found, it is rare to consider to carry out the design of MIMO to antenna and study the mutual coupling problem how reducing antenna element.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the prior arts and deficiency, propose a kind of planar broad band millimeter wave
Mimo antenna, the antenna is individually controllable, compact-sized, characteristic is good, while realizing the characteristics such as low-cross coupling, wide bandwidth, and having can
The design requirement for controlling the terminal mimo antenna system of performance, is suitble to be integrated into communication terminal device system.
To achieve the above object, technical solution provided by the utility model are as follows: a kind of planar broad band millimeter wave MIMO days
Line, including medium substrate, excitation port, floor, the first radiating element group and the second radiating element group；First radiating element
Group is printed on the front of medium substrate, is made of the first radiating element and the second radiating element, and first radiating element is not by
Two bar shaped patches in the same direction are formed by connecting, and one of bar shaped patch and swashing positioned at medium substrate edge
Port connection is encouraged, for another bar shaped patch close to the center of medium substrate, second radiating element is a bar shaped patch, and
Positioned at the first radiating element beside that bar shaped patch at medium substrate center；The second radiating element group is printed on Jie
The back side of matter substrate is made of third radiating element and the 4th radiating element, and the third radiating element is not by same direction
On two bar shaped patches be formed by connecting, and one of bar shaped patch be printed on the medium substrate back side floor one end connect
It connects, for another bar shaped patch close to the center of medium substrate, the other end on the floor connects excitation port, the 4th radiation
Unit is a bar shaped patch, and is located at third radiating element beside that bar shaped patch at medium substrate center.
It is parallel to each other that there are two the first radiating element groups, and is provided with printing between this two the first radiating element groups
In the positive bullion band of medium substrate；It is parallel to each other that there are two the second radiating element groups, and this two second radiation
The T-slot seam for being etched in the medium substrate back side is provided between unit group.
The first radiating element group is there are two vertically, and there are two perpendicular to one another for the second radiating element group.
Second radiating element of the first radiating element group is parallel to the first radiating element close to medium substrate center
That bar shaped patch, another bar shaped patch of first radiating element is perpendicular to medium substrate edge.
4th radiating element of the second radiating element group is parallel to third radiating element close to medium substrate center
That bar shaped patch, another bar shaped patch of the third radiating element is perpendicular to medium substrate edge.
The utility model compared with prior art, have the following advantages that with the utility model has the advantages that
1, the utility model introduces four patch radiating elements, substantially increases impedance bandwidth, and by suitably adjusting
The size of whole each microband paste unit, it can be achieved that each resonance point it is individually controllable, so that it may obtain good impedance band
It is wide.
2, for the antenna of two unit groups, the utility model introduces bullion band in the front of medium substrate, and
T-slot seam is introduced in bottom surface, mimo antenna battle array may make to obtain good isolation in very wide frequency range.
3, the utility model has broader impedance bandwidth, and it is mobile logical to be suitable for various millimeter waves for relatively simple structure
Believe in system equipment.
Detailed description of the invention
Fig. 1 is the front schematic view of the utility model antenna in embodiment 1.
Fig. 2 is the schematic bottom view of the utility model antenna in embodiment 1.
Fig. 3 is the S parameter simulation result diagram of the utility model antenna in embodiment 1.
Fig. 4 is the antenna face schematic diagram that two unit groups are placed in parallel in embodiment 2.
Fig. 5 is the bottom surface of antenna schematic diagram that two unit groups are placed in parallel in embodiment 2.
Fig. 6 is the S parameter simulation result diagram of antenna in embodiment 2.
Fig. 7 is the antenna face schematic diagram that two unit groups are disposed vertically in embodiment 3.
Fig. 8 is the bottom surface of antenna schematic diagram that two unit groups are disposed vertically in embodiment 3.
Fig. 9 is the S parameter simulation result diagram of antenna in embodiment 3.
Specific embodiment
The utility model is described in further detail combined with specific embodiments below.
Embodiment 1
As depicted in figs. 1 and 2, planar broad band millimeter wave mimo antenna provided by the present embodiment, including medium substrate 5,
Excitation port 6, floor 7, the first radiating element group and the second radiating element group, 5 material of medium substrate used are Rogers
5880, with a thickness of 0.508mm, the first radiating element group is printed on the front of medium substrate 5, by 1 He of the first radiating element
Second radiating element 2 composition, first radiating element 1 are formed by connecting by two bar shaped patches not in the same direction, and
One of bar shaped patch is connect perpendicular to 5 edge of medium substrate, and with the excitation port 6 for being located at 5 edge of medium substrate, separately
For one bar shaped patch close to the center of medium substrate 5, second radiating element 2 is a bar shaped patch, is located at the first radiation
Unit 1 is and parallel with the bar shaped patch beside that bar shaped patch at 5 center of medium substrate；Second radiating element
Group is printed on the back side of medium substrate 5, is made of third radiating element 3 and the 4th radiating element 4, the third radiating element 3
It is formed by connecting by two bar shaped patches not in the same direction, and one of bar shaped patch is perpendicular to 5 edge of medium substrate,
And connect with 7 one end of floor for being printed on 5 back side of medium substrate, another bar shaped patch is described close to the center of medium substrate 5
The other end on floor 7 connects excitation port 6, and the 4th radiating element 4 is a bar shaped patch, is located at third radiating element 3
Beside that bar shaped patch at 5 center of medium substrate, and it is parallel with the bar shaped patch.
As shown in figure 3, first resonance point 31 in figure is mainly controlled by the first radiating element 1, it is single to adjust the first radiation
The length of first 1 part, so that it may mobile resonance point 31；Second resonance point 32 is generated by third radiating element 3, adjusts the second spoke
Penetrate the length of unit 3, so that it may mobile resonance point 32；Third resonance point 33 is mainly by the second radiating element 2 and the 4th radiation
Unit 4 controls, and adjusts the size of the second radiating element 2 and the 4th radiating element 4, can move resonance point 33.
Embodiment 2
As shown in Figure 4 and Figure 5, there are two that for the first radiating element group described in the present embodiment unlike the first embodiment
This is parallel, and is provided between this two the first radiating element groups and is printed on the positive bullion band 8 of medium substrate 5；It is described
It is parallel to each other that there are two second radiating element groups, and is provided between this two the second radiating element groups and is etched in medium substrate 5
The T-slot seam 9 at the back side.The effect played by patch, can make the impedance bandwidth of antenna very wide, relative bandwidth reaches
57.8% (27.2-49.3GHz).
Integrated radiating element number is more in a limited space, and to obtain high isolation will be more difficult.And
Existing mimo antenna design, is directed generally to how to reduce the mutual coupling problem between antenna element, so can add between antennas
Enter the structure of decoupling, joined bullion band 8 and T-slot seam 9 in the design between two unit groups, for reducing antenna
The surface current of another antenna is transmitted to when work, so as to improve the isolation of excitation port well.
Antenna provided in this embodiment contains two unit groups and two excitation ports (being not drawn into figure), motivates end
Mouth is in the same side of medium substrate, among two unit groups, joined bullion band 8 and floor T-slot seam 9, effectively
Reduce the mutual coupling between unit.As can be seen from Figure 6, S at this time21Both less than-the 19dB in entire working frequency range, and S11Substantially with
The case where when individual antenna, track was almost the same, 3 resonance points occurred.
Embodiment 3
As shown in Figure 7 and Figure 8, there are two that for the first radiating element group described in the present embodiment unlike the first embodiment
This is vertical, the second radiating element group there are two perpendicular to one another, antenna provided in this embodiment contain two unit groups with
And uncoupling is not added in the adjacent two sides of medium substrate, this antenna for two excitation ports (being not drawn into figure), excitation port
Structure.As can be seen from Figure 9, S at this time21Both less than-the 15dB in entire working frequency range, and S11Substantially with feelings when individual antenna
Condition is similar.
Embodiment described above is only the preferred embodiment of the utility model, and the implementation of the utility model is not limited with this
Range, therefore all shapes according to the utility model, change made by principle, it should all cover within the protection scope of the present utility model.
Claims (5)
1. a kind of planar broad band millimeter wave mimo antenna, it is characterised in that: including medium substrate, excitation port, floor, the first spoke
Penetrate unit group and the second radiating element group；The first radiating element group is printed on the front of medium substrate, single by the first radiation
Member and the second radiating element composition, first radiating element are formed by connecting by two bar shaped patches not in the same direction,
And one of bar shaped patch is connect with the excitation port for being located at medium substrate edge, another bar shaped patch is close to medium base
The center of plate, second radiating element are a bar shaped patch, and are located at the first radiating element close to medium substrate center
Beside that bar shaped patch；The second radiating element group is printed on the back side of medium substrate, by third radiating element and the 4th
Radiating element composition, the third radiating element is formed by connecting by two bar shaped patches not in the same direction, and wherein one
A bar shaped patch is connect with the floor one end for being printed on the medium substrate back side, another bar shaped patch is in medium substrate
The heart, the other end on the floor connect excitation port, and the 4th radiating element is a bar shaped patch, and is located at third and radiates
Unit is beside that bar shaped patch at medium substrate center.
2. a kind of planar broad band millimeter wave mimo antenna according to claim 1, it is characterised in that: first radiation is single
It is parallel to each other that there are two tuples, and is provided between this two the first radiating element groups and is printed on the positive bar shaped gold of medium substrate
Belong to band；It is parallel to each other that there are two the second radiating element groups, and is provided with and is etched between this two the second radiating element groups
The T-slot at the medium substrate back side is stitched.
3. a kind of planar broad band millimeter wave mimo antenna according to claim 1, it is characterised in that: first radiation is single
Tuple is there are two vertically, and there are two perpendicular to one another for the second radiating element group.
4. a kind of planar broad band millimeter wave mimo antenna according to claim 1 or 2 or 3, it is characterised in that: described first
Second radiating element of radiating element group is parallel to that the bar shaped patch of the first radiating element close to medium substrate center, described
Another bar shaped patch of first radiating element is perpendicular to medium substrate edge.
5. a kind of planar broad band millimeter wave mimo antenna according to claim 1 or 2 or 3, it is characterised in that: described second
4th radiating element of radiating element group is parallel to that the bar shaped patch of third radiating element close to medium substrate center, described
Another bar shaped patch of third radiating element is perpendicular to medium substrate edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820854105.7U CN208299031U (en) | 2018-06-04 | 2018-06-04 | A kind of planar broad band millimeter wave mimo antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820854105.7U CN208299031U (en) | 2018-06-04 | 2018-06-04 | A kind of planar broad band millimeter wave mimo antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208299031U true CN208299031U (en) | 2018-12-28 |
Family
ID=64722542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820854105.7U Expired - Fee Related CN208299031U (en) | 2018-06-04 | 2018-06-04 | A kind of planar broad band millimeter wave mimo antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208299031U (en) |
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2018
- 2018-06-04 CN CN201820854105.7U patent/CN208299031U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181228 Termination date: 20190604 |
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| CF01 | Termination of patent right due to non-payment of annual fee |