CN203377368U - Multi-antenna device and terminal - Google Patents
Multi-antenna device and terminal Download PDFInfo
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- CN203377368U CN203377368U CN201320315102.3U CN201320315102U CN203377368U CN 203377368 U CN203377368 U CN 203377368U CN 201320315102 U CN201320315102 U CN 201320315102U CN 203377368 U CN203377368 U CN 203377368U
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The utility model discloses a multi-antenna device and a terminal. The multi-antenna device comprises at least two antenna groups which are connected via floors. Each antenna group comprises one or two antennas. The antenna groups are far from each other in space. Under the condition that more than two antennas are distributed on the terminal, the multiple antennas are grouped so that distance between the antenna groups is increased. Besides, a decoupling network is additionally arranged between the two antennas within the group so that correlation between the antennas is reduced, independent transmission of multiple data streams in space can be realized, transmission speed is enhanced and multi-antenna arrangement space is saved.
Description
Technical field
The utility model relates to the mobile communication terminal technology, relates in particular to a kind of multi-antenna arrangement, terminal.
Background technology
Along with the day by day universal and development of mobile service, more and more higher to the requirement of the message transmission rate of radio communication.In order to meet this demand, wireless technology is from widening transmission bandwidth, using more efficient modulation system/transmission mechanism, and the technology such as employing intelligent dispatching algorithm Resources allocation improve message transmission rate.As: third generation partner plans (3rd Generation Partnership Project, 3GPP) Long Term Evolution (Long-Term Evolution, LTE) in technical specification, the wireless transmission bandwidth is increased to 20MHz, and at LTE in follow-up LTE-Advanced (LTE-A) technical specification, by adopting carrier aggregation (Carrier Aggregation, CA) technology, operable wireless transmission bandwidth has reached 100MHz, and using this wide transmission bandwidth is the basic demand that promotes the wireless communication data transmission rate.Aspect adjustment, transmission mechanism, LTE/LTE-A has adopted OFDM (Orthogonal Frequency Division Multiplexing, OFDM) technology, the overlapping use of the frequency bandwidth that this technology takies a plurality of subcarriers, make the frequency spectrum service efficiency higher.Different from existing 3-G (Generation Three mobile communication system), the most transmission channel of LTE/LTE-A is set to share, and auxiliary with intelligent resource distribution, dispatching algorithm, dynamically dispatch in real time,, distribute shared transmission channel, make the utilization ratio of valuable transmission resource higher, the higher message transmission rate of more valid data/provide is provided in limited transmission bandwidth.
Above-mentioned widening transmission bandwidth, adopting more the modulation system of spectral efficient/transmission standard and be shared model by radio-resource-configuration and adopt intelligent Resource Distribution and Schedule algorithm of mentioning, be actually from frequency and time two dimensions and carried out the improvement of technology, in addition, can also utilize the dimension in space to improve message transmission rate, multiple-input and multiple-output (Multi-Input Multi-Output, MIMO) technology that Here it is.Configure many antennas at transmitting terminal and receiving terminal simultaneously, with forming a plurality of parallel transmission channels in a space, make a plurality of data flow use these independently passage carry out parallel transmission, the MIMO technology can make message transmission rate be doubled and redoubled.
A plurality of antennas that locus comparatively approaches, separately as the part of whole signal transmission passage, inevitably there is the similar path delay of time and fading characteristic, therefore also comparatively similar on the impact (decay and time delay) of signal transmission, will between different reception signals, introduce correlation.This correlation is larger, and the independence between each signalling channel is just lower, more remarkable to the deleterious effects of entire system transmission performance.Therefore, effectively reducing the correlation between each antenna in mimo system, is one of key technology point of realizing the mimo system high speed data transfer.In base station side, due to being taken up room, antenna for base station there is no strict requirement, therefore can reduce the correlation between antenna by the spacing strengthened between antenna.In contrast, on terminal, especially, on the cell phone type terminal, due to the restriction that is subject to physical size, arrange that a plurality of antennas require between each antenna to keep lower correlation just to bring very large technological challenge simultaneously.
Present stage, generally on mobile terminal, arrange two antennas, one as main antenna, one as auxiliary antenna, wherein main antenna independently is used for the transmitting-receiving of wireless communication signals, and auxiliary antenna is under some specific operation mode, as diversity reception, participate in the transmitting-receiving of wireless signal, in order to improve the reliability of signal transmission, or the lifting transfer of data is considered carefully.By pulling open two space physics distances between antenna, or configure specific Decoupling network between two antennas, can effectively reduce the correlation between antenna, make it to meet the demand of practical application.Many pieces of scientific papers and patent have been arranged, and the method that reduces the degree of coupling between two antennas under the scene to configuration two antennas on this Terminal Type conducts in-depth research and sets forth, and on terminal, the technology of two low correlation antennas of configuration is relatively ripe.
In order to support higher transmission rate, up-to-date LTE-Advanced standard (3GPP Release12) has started to support the MIMO of 4X4, at transmitting terminal and receiving terminal, namely on base station and mobile phone terminal, all configure 4 antennas, these 4 antennas are worked simultaneously, there is no dividing of primary and secondary, and require between each antenna all to keep lower correlation.But, in the serious limited space of handheld terminal, arrange that it is very difficult keeping lower correlation between 4 antennas and each antenna.Traditional method, such as the distance of pulling open as far as possible between antenna, or used Decoupling network in the situation that terminal 4 antennas are no longer valid.Arrange 4 antennas on terminal, consider other equipment on the restriction of the intrinsic physical size of terminal and terminal, as camera lens, battery, loud speaker, microphone etc., demand to space, the space that can offer antenna is very little, pull open as far as possible in any case the distance of antenna and arranged, the distance that can increase is all very limited, therefore by pulling open the technical scheme of arranging apart from reducing isolation between antennas, is difficult to use on 4 antenna terminals; In addition, by adding the methods such as Decoupling network or use special floor fluting, generally only to 2 antennas, if need to support more antenna, need very complicated design, in addition, the intrinsic frequency band broadband of this method is generally very narrow, support will further be dwindled bandwidth of operation more than the Decoupling design of 2 antennas, be difficult to meet actual required broadband character.
The utility model content
In view of this, main purpose of the present utility model is to provide a kind of multi-antenna arrangement, terminal, can reduce the correlation between many antennas, and saves many antenna arrangement space.
For achieving the above object, the technical solution of the utility model is achieved in that
A kind of multi-antenna arrangement, comprise at least two antenna sets, between described antenna sets, by floor, connects, wherein,
Comprise one or two antennas in described each antenna sets, described each antenna sets spatially mutually away from.
For the antenna sets that comprises two antennas, between two antennas in described antenna sets, also be provided with Decoupling network.
Described Decoupling network comprises: the first coupling sub-network, the second coupling sub-network, the 3rd coupling sub-network, the 4th coupling sub-network, the first decoupling zero sub-network, the second decoupling zero sub-network and the 3rd decoupling zero sub-network; Wherein,
An antenna in described antenna sets is connected to a port by the first coupling sub-network, the first decoupling zero sub-network, the 3rd coupling sub-network successively;
Another root antenna in described antenna sets is connected to another port by the second coupling sub-network, the second decoupling zero sub-network, the 4th coupling sub-network successively;
Described the 3rd decoupling zero sub-network is connected with the first decoupling zero sub-network, the second decoupling zero sub-network, the 3rd coupling sub-network, the 4th coupling sub-network respectively.
On described floor, fluting is set.
A kind of terminal, comprise above-mentioned multi-antenna arrangement.
Described multi-antenna arrangement comprises two antenna sets, and each antenna sets comprises two antennas.
An antenna sets in described two antenna sets is arranged at the top of described terminal, and another antenna sets is arranged at the bottom of described terminal.
Described two antenna sets are set to diagonal position.
Multi-antenna arrangement described in the utility model, terminal, multi-antenna arrangement comprises at least two antenna sets, between described antenna sets, by floor, connects, and comprises one or two antennas in described each antenna sets, described each antenna sets spatially mutually away from.In the situation that arrange more than two antennas on terminal, the utility model is by being divided into groups to many antennas, pull open the antenna sets spacing, and install Decoupling network additional between two antennas in group, thereby reduced the correlation between antenna, can a plurality of data flow in implementation space independently transmit, improved transmission rate, and saved many antenna arrangement space.
The accompanying drawing explanation
Fig. 1 is a kind of multi-antenna arrangement structural representation of the utility model embodiment;
The structural representation that Fig. 2 is a kind of Decoupling network of the utility model embodiment;
Fig. 3 is the described antenna configuration schematic diagram of embodiment 1;
Fig. 4 is the described Decoupling network schematic diagram of embodiment 1;
The equivalent microwave network schematic diagram that Fig. 5 is Decoupling network in embodiment 1;
The simplified structure schematic diagram that Fig. 6 is Decoupling network in embodiment 1.
Embodiment
Basic thought of the present utility model is: multi-antenna arrangement comprises at least two antenna sets, between described antenna sets, by floor, connects, and comprises one or two antennas in described each antenna sets, described each antenna sets spatially mutually away from.
The utility model the scene more than two antennas has proposed a kind of comprehensive technological scheme that reduces correlation between antenna for arranging on terminal.The purpose of this utility model is by many antennas are divided into groups, and the Integrated using antenna pulls open layout, installs the technical schemes such as Decoupling network and floor fluting additional, on terminal, arranges more than reducing correlation between antenna in two antenna situations.
Fig. 1 is a kind of multi-antenna arrangement structural representation of the utility model embodiment, and as shown in Figure 1, this multi-antenna arrangement comprises at least two antenna sets, between described antenna sets, by floor, connect, wherein,
Comprise one or two antennas in described each antenna sets, described each antenna sets spatially mutually away from.
In practical application, antenna is divided into groups, every group comprises two antennas at the most, if antenna adds up to odd number, it is one group that an antenna is arranged.In the utility model, antenna form is not limit, and can be the various ways such as plane single pole sub antenna, PIFA.
For the antenna sets that comprises two antennas, general, to organize between interior two antennas, the position that space is arranged is adjacent, between group and group, spaces out and arranges on terminal as far as possible.
Optionally, for the antenna sets that comprises two antennas, between two antennas in described antenna sets, also be provided with Decoupling network.In practical application, according to antenna performance and working frequency range, the design Decoupling network, to reduce the coupling between antenna.
The structural representation that Fig. 2 is a kind of Decoupling network of the utility model embodiment, as shown in Figure 2, described Decoupling network comprises: the first coupling sub-network, the second coupling sub-network, the 3rd coupling sub-network, the 4th coupling sub-network, the first decoupling zero sub-network, the second decoupling zero sub-network and the 3rd decoupling zero sub-network; Wherein,
An antenna in described antenna sets is connected to a port by the first coupling sub-network, the first decoupling zero sub-network, the 3rd coupling sub-network successively;
Another root antenna in described antenna sets is connected to another port by the second coupling sub-network, the second decoupling zero sub-network, the 4th coupling sub-network successively;
Described the 3rd decoupling zero sub-network is connected with the first decoupling zero sub-network, the second decoupling zero sub-network, the 3rd coupling sub-network, the 4th coupling sub-network respectively.
Optionally, on described floor, fluting is set.
The utility model embodiment has also correspondingly proposed a kind of terminal, and this terminal comprises above-mentioned multi-antenna arrangement.
Optionally, described multi-antenna arrangement comprises two antenna sets, and each antenna sets comprises two antennas.
Optionally, an antenna sets in described two antenna sets is arranged at the top of described terminal, and another antenna sets is arranged at the bottom of described terminal.
Optionally, described two antenna sets are set to diagonal position.
Below by specific embodiment, the technical solution of the utility model is described in further detail.
Embodiment 1
The present embodiment be take 4 antennas of terminal configuration and is described as example.
As shown in Figure 3, in the present embodiment, 4 antennas are divided into two groups, and one group is positioned at the cell phone mainboard top, and one group is positioned at the cell phone mainboard bottom, in order to strengthen two groups of spacings between antenna, while arranging two groups of antennas, adopt diagonal angle to arrange, between two antennas of same group, by Decoupling network, connected (in Fig. 3 and not shown Decoupling network), on floor, depending on actual conditions, need to carry out/not slot processing.
Decoupling network in group between two antennas, designed by the following method: if be coupled as zero between two antennas, i.e. reflection coefficient S
12=S
21=0, obtain admittance value Y according to the transformational relation of s-matrix and Y matrix
12=Y
21=0.This shows, if want, makes two to be zero with the degree of coupling between antenna, can start with from its admittance matrix, and the thought converted by microwave network, design Decoupling network.
As shown in Figure 4, in order to reduce the complexity of Decoupling network design, the present embodiment is first designed matching network 1 and matching network 2 according to the input impedance of each antenna, and two slave antennas all are adjusted to matching status.Then from matching status, design Decoupling network, Decoupling network is comprised of Decoupling network 1, Decoupling network 2 and Decoupling network 3.After Decoupling network, coupling between two antennas is very little, but often in mismatch Conditions, matching network 3 need to be designed respectively and matching network 4 is adjusted to matching status by antenna again, and follow-up matching network 3 and matching network 4 can obviously not affect the very little degree of coupling.
Matching network 1 in Fig. 4, matching network 2, matching network 3 and matching network 4 all adopt the L-type matching network to be designed.
The equivalent microwave network schematic diagram that Fig. 5 is Decoupling network, the Decoupling network 1 in Fig. 5 and Decoupling network 2 can adopt transmission line, T-shaped network or pin network to realize, and Decoupling network 4 adopts series inductance or series capacitance to realize.Decoupling network shown in Fig. 4 also can be reduced to as shown in Figure 6.
The present embodiment pulls open layout, installs the technical schemes such as Decoupling network and floor fluting additional by the Integrated using antenna, on terminal, arranges more than in 2 antenna situations, realizing correlation between antenna.So that a plurality of data flow in implementation space are independently transmitted, improve transmission rate.
These are only an embodiment of the present utility model, do not form any restriction of the present utility model, for the antenna of dissimilar and working frequency range, utilize the technology in the utility model, can be easy to realize decoupling zero between common-frequency aerial and the coupling of antenna element.
Claims (8)
1. a multi-antenna arrangement, is characterized in that, this multi-antenna arrangement comprises at least two antenna sets, between described antenna sets, by floor, connect, wherein,
Comprise one or two antennas in described each antenna sets, described each antenna sets spatially mutually away from.
2. multi-antenna arrangement according to claim 1, is characterized in that, for the antenna sets that comprises two antennas, between two antennas in described antenna sets, also is provided with Decoupling network.
3. multi-antenna arrangement according to claim 2, it is characterized in that, described Decoupling network comprises: the first coupling sub-network, the second coupling sub-network, the 3rd coupling sub-network, the 4th coupling sub-network, the first decoupling zero sub-network, the second decoupling zero sub-network and the 3rd decoupling zero sub-network; Wherein,
An antenna in described antenna sets is connected to a port by the first coupling sub-network, the first decoupling zero sub-network, the 3rd coupling sub-network successively;
Another root antenna in described antenna sets is connected to another port by the second coupling sub-network, the second decoupling zero sub-network, the 4th coupling sub-network successively;
Described the 3rd decoupling zero sub-network is connected with the first decoupling zero sub-network, the second decoupling zero sub-network, the 3rd coupling sub-network, the 4th coupling sub-network respectively.
4. according to the described multi-antenna arrangement of claims 1 to 3 any one, it is characterized in that, on described floor, fluting is set.
5. a terminal, is characterized in that, this terminal comprises the described multi-antenna arrangement of claim 1 to 4 any one.
6. terminal according to claim 5, is characterized in that, described multi-antenna arrangement comprises two antenna sets, and each antenna sets comprises two antennas.
7. terminal according to claim 6, is characterized in that, an antenna sets in described two antenna sets is arranged at the top of described terminal, and another antenna sets is arranged at the bottom of described terminal.
8. terminal according to claim 7, is characterized in that, described two antenna sets are set to diagonal position.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320315102.3U CN203377368U (en) | 2013-06-03 | 2013-06-03 | Multi-antenna device and terminal |
| PCT/CN2013/082820 WO2013189461A2 (en) | 2013-06-03 | 2013-09-02 | Multi-antenna device and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320315102.3U CN203377368U (en) | 2013-06-03 | 2013-06-03 | Multi-antenna device and terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203377368U true CN203377368U (en) | 2014-01-01 |
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ID=49769598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320315102.3U Expired - Lifetime CN203377368U (en) | 2013-06-03 | 2013-06-03 | Multi-antenna device and terminal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203377368U (en) |
| WO (1) | WO2013189461A2 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100910526B1 (en) * | 2007-11-20 | 2009-07-31 | 삼성전기주식회사 | Antenna and mobile communication device using the same |
| CN102104185A (en) * | 2010-12-01 | 2011-06-22 | 中兴通讯股份有限公司 | Multiple input multiple output (MIMO) array antenna |
| CN102136628A (en) * | 2011-01-24 | 2011-07-27 | 中兴通讯股份有限公司 | MIMO antenna and mobile terminal used by same |
| CN102931478A (en) * | 2012-07-18 | 2013-02-13 | 上海交通大学 | MIMO-UE (Multiple Input Multiple Output-User Equipment) antenna arraying method and system |
-
2013
- 2013-06-03 CN CN201320315102.3U patent/CN203377368U/en not_active Expired - Lifetime
- 2013-09-02 WO PCT/CN2013/082820 patent/WO2013189461A2/en active Application Filing
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| Publication number | Publication date |
|---|---|
| WO2013189461A3 (en) | 2014-04-24 |
| WO2013189461A2 (en) | 2013-12-27 |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |