CN110545132A - MIMO curved surface conformal array antenna for vehicle-mounted platform - Google Patents
MIMO curved surface conformal array antenna for vehicle-mounted platform Download PDFInfo
- Publication number
- CN110545132A CN110545132A CN201910822611.7A CN201910822611A CN110545132A CN 110545132 A CN110545132 A CN 110545132A CN 201910822611 A CN201910822611 A CN 201910822611A CN 110545132 A CN110545132 A CN 110545132A
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- China
- Prior art keywords
- mimo
- array antenna
- signals
- conformal array
- curved surface
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
the invention discloses an MIMO curved conformal array antenna for a vehicle-mounted platform, and belongs to the technical field of wireless communication and antennas. The antenna comprises a curved conformal array antenna, M multiplied by N scale dual-polarized antenna units, M multiplied by N SDR software defined radio units, an MIMO beam forming network and a baseband processing unit. The antenna of the invention adopts the curved conformal array antenna to realize the MIMO function, is suitable for vehicle-mounted conformal communication application occasions, and expands the application range of the MIMO technology.
Description
Technical Field
The invention belongs to the technical field of wireless communication and antennas, and particularly relates to an MIMO curved conformal array antenna for a vehicle-mounted platform.
Background
In the field of mobile communication, MIMO multiple input multiple output technology is commonly used, i.e. a transmitting end and a receiving end respectively use multiple transmitting and receiving antennas to improve communication quality. The MIMO technology can fully utilize space resources, and the system channel capacity can be improved in multiples under the condition of not increasing frequency spectrum resources and antenna transmitting power.
At present, most of common MIMO antennas are regular planar arrays and can be well installed under most of using conditions, but in some special occasions, for example, under the condition that the installation surface is a curved surface, the traditional planar MIMO antenna array cannot be well installed and used. Severely limiting the range of applications for MIMO technology.
Therefore, the MIMO curved conformal array antenna for the vehicle-mounted platform can be developed to make up for the situation that a planar array cannot be installed properly.
Disclosure of Invention
In view of the above, the present invention aims to overcome the defects of the prior art, and provide a MIMO curved conformal array antenna for a vehicle-mounted platform, which uses a curved conformal array antenna to implement MIMO function, is suitable for vehicle-mounted conformal communication application, and expands the application range of the MIMO technology.
in order to solve the technical problems, the technical scheme provided by the invention is as follows:
A MIMO curved surface conformal array antenna for a vehicle-mounted platform comprises a curved surface conformal array antenna 1, a plurality of SDR software defined radio units 3, an MIMO beam forming network 4 and a baseband processing unit 5 which are sequentially connected, wherein the curved surface conformal array antenna 1 is composed of a plurality of dual-polarized antenna units 2 which are arranged in a rectangular shape, and the dual-polarized antenna units 2 are connected with the SDR software defined radio units 3 in a one-to-one correspondence manner;
When receiving signals, electromagnetic wave signals from the space are received through the curved conformal array antenna 1, the received signals are transmitted to the SDR software defined radio unit 3 at the rear end, a receiving channel in the SDR software defined radio unit 3 performs low-noise amplification and down-conversion processing on the signals, and then the signals are directly subjected to AD sampling processing in the SDR software defined radio unit 3 to be converted into digital signals; the digital signals are sent to an MIMO beam forming network 4 at the rear end for MIMO beam forming processing, and the processed signals are sent to a baseband processing unit 5 at the rear end for demodulation processing, so that communication demodulation is completed;
When transmitting signals, modulation signals from the baseband processing unit 5 are subjected to MIMO beamforming processing through the MIMO beamforming network 4, then sent to the SDR software defined radio unit 3 for DA signal transmission processing, digital signals are converted into analog signals and subjected to up-conversion, then power amplification is carried out through a transmission channel in the SDR software defined radio unit 3, and finally the amplified signals are sent to the curved conformal array antenna 1 and transmitted to the space.
Furthermore, the radian of the curved surface of the radiation port of the curved conformal array antenna 1 is 1019mm, and the radian of the curved surface of the feed port is 996 mm.
further, the dual polarized antenna element 2 has a horizontally polarized port 6 and a vertically polarized port 7.
Compared with the prior art, the invention has the following beneficial effects:
1. The invention can realize MIMO function of curved conformal array antenna by utilizing the processing capability of SDR software radio platform.
2. The invention adopts the curved conformal array antenna to realize the MIMO function, is suitable for vehicle-mounted conformal communication application occasions, and expands the application range of the MIMO technology.
Drawings
FIG. 1 is a functional block diagram of an embodiment of the present invention;
Fig. 2 is a schematic structural diagram of the curved conformal array antenna of fig. 1;
FIGS. 2 a-2 c are top, front and side views of FIG. 2;
Figure 3a is an enlarged partial view of one of the dual polarized antenna elements of figure 2 a;
figure 3b is an enlarged partial view of one of the dual polarized antenna elements of figure 2 b;
Fig. 4 is a schematic diagram of the curvature of a curved conformal array antenna.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1, the MIMO curved conformal array antenna for a vehicle-mounted platform includes a curved conformal array antenna 1, dual-polarized antenna units 2, an MIMO beamforming network 4 and a baseband processing unit 5, where the curved conformal array antenna 1 includes M × N scale dual-polarized antenna units 2, and an SDR unit 3 is connected behind each dual-polarized antenna unit 2.
The number of M and N can be determined according to the required wavefront gain of the system and the installation space of the carrier platform.
The structural member of the MIMO curved conformal array antenna 1 is made of a light metal material.
in order to realize a better MIMO effect, the MIMO curved conformal array antenna 1 needs to combine the SDR (software defined radio) platform processing capability and the MIMO beamforming network 4 to perform MIMO beamforming. The shaped data is sent to the back end baseband processing unit 5 for processing.
Fig. 2 and fig. 2a to 2c are schematic structural diagrams of a curved conformal array antenna, where the MIMO curved conformal array antenna 1 includes dual-polarized antenna units 2 of 10 × 10 scale.
Fig. 3a and 3b are schematic structural views of dual-polarized antenna elements; the dual-polarized antenna unit 2 includes a horizontally polarized port 6 and a vertically polarized port 7.
FIG. 4 is a schematic diagram of the curvature of a curved conformal array antenna; the radiation port camber radian R1=1019mm and the feed port camber radian R2=996mm of the MIMO camber conformal array antenna 1.
The invention can realize MIMO function of curved conformal array antenna by using SDR software radio platform processing capability, MIMO beam forming network 4 can be used for MIMO beam forming, and data after forming is sent to back end baseband processing unit 5 for processing.
In a word, the MIMO curved surface conformal array antenna realizes the MIMO function by adopting the curved surface conformal array antenna, is suitable for vehicle-mounted conformal communication application occasions, and expands the application range of the MIMO technology.
Claims (3)
1. The utility model provides a conformal array antenna of MIMO curved surface for vehicle-mounted platform which characterized in that: the antenna comprises a curved surface conformal array antenna (1), a plurality of SDR software defined radio units (3), an MIMO beam forming network (4) and a baseband processing unit (5), wherein the curved surface conformal array antenna (1) is composed of a plurality of rectangular dual-polarized antenna units (2), and the dual-polarized antenna units (2) are connected with the SDR software defined radio units (3) in a one-to-one correspondence manner;
When receiving signals, electromagnetic wave signals from the space are received through the curved conformal array antenna (1), the received signals are transmitted to the SDR software defined radio unit (3) at the rear end, a receiving channel in the SDR software defined radio unit (3) performs low-noise amplification and down-conversion processing on the signals, and then the signals are directly subjected to AD sampling processing in the SDR software defined radio unit (3) to be converted into digital signals; the digital signals are sent to an MIMO beam forming network (4) at the rear end for MIMO beam forming processing, and the processed signals are sent to a baseband processing unit (5) at the rear end for demodulation processing, so that communication demodulation is completed;
when signals are transmitted, modulation signals from a baseband processing unit (5) are subjected to MIMO beamforming processing through an MIMO beamforming network (4), then are sent to an SDR software defined radio unit (3) to be subjected to DA signal transmission processing, digital signals are converted into analog signals and subjected to up-conversion, then power amplification is carried out through a transmitting channel in the SDR software defined radio unit (3), and finally the amplified signals are sent to a curved surface conformal array antenna (1) and are transmitted to a space.
2. The MIMO curved conformal array antenna for vehicular platforms according to claim 1, wherein: the radian of the curved surface of the radiation port of the curved surface conformal array antenna (1) is 1019mm, and the radian of the curved surface of the feed port is 996 mm.
3. the MIMO curved conformal array antenna for vehicular platforms according to claim 1, wherein: the dual-polarized antenna unit (2) has a horizontally polarized port (6) and a vertically polarized port (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910822611.7A CN110545132A (en) | 2019-09-02 | 2019-09-02 | MIMO curved surface conformal array antenna for vehicle-mounted platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910822611.7A CN110545132A (en) | 2019-09-02 | 2019-09-02 | MIMO curved surface conformal array antenna for vehicle-mounted platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110545132A true CN110545132A (en) | 2019-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910822611.7A Pending CN110545132A (en) | 2019-09-02 | 2019-09-02 | MIMO curved surface conformal array antenna for vehicle-mounted platform |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002111374A (en) * | 2000-10-04 | 2002-04-12 | Mitsubishi Electric Corp | Conformal array antenna |
| CN102255144A (en) * | 2011-04-29 | 2011-11-23 | 刘建江 | Radiating unit, radiating array and machining forming method |
| CN103634034A (en) * | 2012-08-23 | 2014-03-12 | 中兴通讯股份有限公司 | Wave beam forming processing method and apparatus |
| CN204966661U (en) * | 2015-08-21 | 2016-01-13 | 上海无线电设备研究所 | Ultra wide band double polarization conformal antenna |
| CN105610450A (en) * | 2016-03-08 | 2016-05-25 | 武汉大学 | Broadband broadcasting transmission method and system |
| CN107408970A (en) * | 2015-03-06 | 2017-11-28 | 瑞典爱立信有限公司 | The beam forming arranged using antenna |
| CN109546355A (en) * | 2018-11-28 | 2019-03-29 | 哈尔滨工业大学（威海） | A kind of characteristics of conformal printed antenna array apparatus |
-
2019
- 2019-09-02 CN CN201910822611.7A patent/CN110545132A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002111374A (en) * | 2000-10-04 | 2002-04-12 | Mitsubishi Electric Corp | Conformal array antenna |
| CN102255144A (en) * | 2011-04-29 | 2011-11-23 | 刘建江 | Radiating unit, radiating array and machining forming method |
| CN103634034A (en) * | 2012-08-23 | 2014-03-12 | 中兴通讯股份有限公司 | Wave beam forming processing method and apparatus |
| CN107408970A (en) * | 2015-03-06 | 2017-11-28 | 瑞典爱立信有限公司 | The beam forming arranged using antenna |
| CN204966661U (en) * | 2015-08-21 | 2016-01-13 | 上海无线电设备研究所 | Ultra wide band double polarization conformal antenna |
| CN105610450A (en) * | 2016-03-08 | 2016-05-25 | 武汉大学 | Broadband broadcasting transmission method and system |
| CN109546355A (en) * | 2018-11-28 | 2019-03-29 | 哈尔滨工业大学（威海） | A kind of characteristics of conformal printed antenna array apparatus |
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Application publication date: 20191206 |