CN202127092U - Antenna and MIMO (multiple-input multiple-output) antenna with same - Google Patents
Antenna and MIMO (multiple-input multiple-output) antenna with same Download PDFInfo
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- CN202127092U CN202127092U CN2011201810385U CN201120181038U CN202127092U CN 202127092 U CN202127092 U CN 202127092U CN 2011201810385 U CN2011201810385 U CN 2011201810385U CN 201120181038 U CN201120181038 U CN 201120181038U CN 202127092 U CN202127092 U CN 202127092U
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Abstract
The utility model relates to an antenna which comprises a first dielectric substrate, first sheet meal and second sheet metal. The first sheet metal and the second sheet metal are both attached to the two opposite surfaces of the first dielectric substrate; a first feeder is arranged around the first sheet meal, and a second feeder is arranged around the second sheet meal; the first sheet meal is engraved with a first micro-groove structure so that a first metal wire is formed on the first sheet metal, and the second sheet meal is engraved with a second micro-groove structure so that a second metal wire is formed on the second sheet metal; the first feeder is electrically connected with the second feeder; and the first sheet metal is covered by a second dielectric substrate. In the utility model, because two surfaces of the first dielectric substrate are both provided with the sheet metal, the space area of the antenna can be fully utilized, the antenna can work at a lower working frequency in the environment, and the requirements for small size and broadband multimode of the antenna can be met. Furthermore, the utility model also relates to an MIMO (multiple-input multiple-output) antenna with a plurality of antennas.
Description
Technical field
The invention belongs to the communications field, particularly, relate to a kind of antenna and have the MIMO antenna of this antenna.
Background technology
Along with the high development of semiconductor technology, current electronic system integrated level has been proposed increasingly high requirement, miniaturization of devices becomes the technical problem that whole industry is paid special attention to.Yet, be different from the development that the IC chip is followed " Moore's Law ", as other important composition---the radio-frequency module of electronic system, but be faced with the highly difficult technological challenge of device miniaturization.Radio-frequency module has mainly comprised main devices such as mixing, power amplifier, filtering, radio signal transmission, matching network and antenna.Wherein, antenna is as the radiating element and the receiving device of final radiofrequency signal, and its operating characteristic will directly influence the service behaviour of whole electronic system.Yet important indicators such as the size of antenna, bandwidth, gain have but received the restriction (gain margin under the fixed dimension, bandwidth limit etc.) of basic physical principle.The basic principle of these index limit makes the miniaturization technology difficulty of antenna considerably beyond other device, and because the complexity of the electromagnetic field analysis of radio-frequency devices, approaching these limiting values all becomes huge technological challenge.
Simultaneously, complicated along with contemporary electronic systems, the demand of multimode service becomes more and more important in systems such as radio communication, wireless access, satellite communication, radio data network.And the demand of multimode service has further increased the complexity of miniature antenna multimode design.Remove the technological challenge of miniaturization, the multimode impedance matching of antenna also becomes the bottleneck of antenna technology.On the other hand, the high speed development of multi-input multi-output system (MIMO) in radio communication, wireless data service field further required the miniaturization of antenna size harshly and guaranteed good isolation degree, radiance and antijamming capability simultaneously.Yet traditional terminal communication antenna mainly designs based on the radiation theory of electric monopole or dipole, such as the most frequently used planar inverted-F antenna (PIFA).The radiation operating frequency of traditional antenna directly and the size positive correlation of antenna, the area positive correlation of bandwidth and antenna makes the design of antenna need the physical length of half-wavelength usually.More in the complicated electronic system, antenna needs multimode operation, just need design at the impedance matching network outside the feed antenna forehead at some.But the increase that impedance matching network is extra the feeder line design of electronic system, increased radio system area simultaneously matching network also introduced many energy losses, be difficult to satisfy the requirement of system design of low-power consumption.Therefore, miniaturization, multimodal new antenna technology become an important technology bottleneck of contemporary electronics integrated system.
Summary of the invention
The technical problem that the present invention will solve is, is controlled by the defective of the physics limitation of spatial area to prior art antenna when the low frequency operation, and a kind of antenna that can guarantee its miniaturization in low frequency operation simultaneously is provided.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of antenna; It is characterized in that; Said antenna comprises first medium substrate, attached to first sheet metal and second sheet metal on relative two surfaces of first medium substrate, be provided with first feeder line around first sheet metal, be provided with second feeder line around second sheet metal; Said first feeder line is through said first sheet metal of coupled modes feed-in; Said second feeder line is through said second sheet metal of coupled modes feed-in, and hollow out has first micro groove structure on first sheet metal, to form first metal routing on said first sheet metal, and hollow out has second micro groove structure on second sheet metal, to form second metal routing on said second sheet metal; Said first feeder line is electrically connected with second feeder line, also is coated with second medium substrate on said first sheet metal.
Further, said first medium substrate is processed by ceramic material, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material.
Further, said second medium substrate is processed by ceramic material, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material.
Further, said first micro groove structure is a kind of in complementary split ring resonator structure, complementary helix structure, opening helical ring structure, two opening helical ring structure and the complementary folding line structure.
Further, said second micro groove structure is a kind of in complementary split ring resonator structure, complementary helix structure, opening helical ring structure, two opening helical ring structure and the complementary folding line structure.
Further, said first sheet metal is connected through plated-through hole or lead with second sheet metal.
Further, said first feeder line is connected through plated-through hole or lead with second feeder line.
Further, said first sheet metal is copper sheet or silver strip.
Further, said second sheet metal is copper sheet or silver strip.
The antenna of embodiment of the present invention; With respect to existing antenna; Has following beneficial effect: be provided with sheet metal on the first medium substrate two sides; Made full use of the spatial area of antenna, can under low operating frequency, work, satisfied the requirement of antenna miniaturization, low operating frequency, broadband multimode at antenna under this environment.In addition; The present invention also is coated with second medium substrate on first sheet metal; Make antenna when reception or launching electromagnetic wave, all need pass through this second medium substrate, make the whole distributed capacitance of antenna increase, the increase of distributed capacitance can effectively reduce operating frequency of antenna; Therefore it is good when making antenna at low frequency under the situation that does not change feeder line length, still to work, and satisfies the requirement of antenna small size, low operating frequency and broadband multimode.
Another problem to be solved by this invention provides a kind of MIMO antenna.
The present invention solves the problems of the technologies described above the scheme that is adopted: a kind of MIMO antenna, said MIMO antenna comprises a plurality of above-mentioned antennas.
According to MIMO antenna of the present invention, except the characteristics that possess above-mentioned antenna itself, also have very high isolation, the antijamming capability between a plurality of antennas is strong.
Description of drawings
Fig. 1 is the stereogram of antenna of the present invention;
Fig. 2 removes the structural representation behind second medium substrate for Fig. 1;
Fig. 3 is another visual angle figure of Fig. 2;
Fig. 4 a is the sketch map of complementary split ring resonator structure;
Fig. 4 b is depicted as the sketch map of complementary helix structure;
Fig. 4 c is depicted as the sketch map of opening helical ring structure;
Fig. 4 d is depicted as the sketch map of two opening helical ring structures;
Fig. 4 e is depicted as the sketch map of complementary folding line structure;
Fig. 5 a is the sketch map of deriving of complementary its geometry of split ring resonator structure shown in Fig. 4 a;
Fig. 5 b is the sketch map of deriving of complementary its expansion of split ring resonator structure shown in Fig. 4 a;
Fig. 6 a is the structural representation behind the complementary split ring resonator structure shown in three Fig. 4 a compound;
Fig. 6 b is the compound sketch map that the complementary split ring resonator structure shown in two Fig. 4 a and Fig. 4 b are depicted as complementary helix structure;
Fig. 7 is the structural representation after the complementary split ring resonator structural group battle array shown in four Fig. 4 a.
Embodiment
Extremely shown in Figure 3 like Fig. 1; Said antenna 100 of the present invention comprises first medium substrate 1, attached to first sheet metal 4 and second sheet metal 7 on first medium substrate, 1 relative two surfaces; Be provided with first feeder line 2 around first sheet metal 4; Be provided with second feeder line 8 around second sheet metal 7; Said first feeder line 2 and second feeder line 8 are all through coupled modes difference said first sheet metal 4 of feed-in and second sheet metal 7; Hollow out has first micro groove structure 41 on first sheet metal, to form first metal routing 42 on said first sheet metal 4, and hollow out has second micro groove structure 71 on second sheet metal, to form second metal routing 72 on said second sheet metal 7, and said first feeder line 2 is electrically connected with second feeder line 8.This kind design of equivalent so just can be designed the radio-frequency antenna that is operated under the very low operation frequency in having increased antenna physical length (the physical length size does not increase) in minimum space.Solve the physics limitation of traditional antenna antenna controlled space area when low frequency operation.
Like Fig. 2 and shown in Figure 3, said first feeder line 2 is electrically connected through the plated-through hole of on first medium substrate 1, opening 10 with second feeder line 8.Can certainly adopt lead to connect.
Among Fig. 2, the part of the first sheet metal cross-hatching is first metal routing, the blank parts on first sheet metal (part of hollow out) expression first micro groove structure.In addition, first feeder line is also represented with hatching.Same, among Fig. 3, the part of the second sheet metal cross-hatching is second metal routing, the blank parts on second sheet metal (part of hollow out) expression second micro groove structure.In addition, second feeder line is also represented with hatching.
Shown in Figure 2ly remove the structural representation behind second medium substrate for antenna of the present invention, Fig. 3 is its another visual angle figure.Comprehensive two figure can find out that the structure of adhering on a surface of first medium substrate and the b surface is identical.Promptly first feeder line, first sheet metal overlap with second feeder line, second sheet metal respectively in the projection on b surface.Certainly, this is a preferred scheme, and a surface as required also can be different with the surperficial structure of b.
Second feeder line 8 is provided with to realize the signal coupling around second sheet metal 7.Other second sheet metal 7 can contact with second feeder line 8, also can not contact.When second sheet metal 7 contacts with second feeder line 8, inductive coupled between second feeder line 8 and second sheet metal 7; When second sheet metal 7 does not contact with second feeder line 8, capacitive coupling between second feeder line 8 and second sheet metal 7.
Among the present invention, said first medium substrate, two apparent surfaces' first sheet metal can be connected with second sheet metal, also can not connect.Under first sheet metal and the unconnected situation of second sheet metal, between said first sheet metal and second sheet metal through capacitively coupled mode feed; In such cases, can realize the resonance of first sheet metal and second sheet metal through the thickness that changes first medium substrate.Under the situation that first sheet metal and second sheet metal are electrically connected (for example the form through lead or plated-through hole is connected), between said first sheet metal and second sheet metal through inductive coupled mode feed.
Said first micro groove structure 41 and second micro groove structure 71 among the present invention can be the complementary helix structure shown in the complementary split ring resonator structure shown in Fig. 4 a, Fig. 4 b, a kind of in the two opening helical ring structures shown in the opening helical ring structure shown in Fig. 4 c, Fig. 4 d, the complementary folding line structure shown in Fig. 4 e or through several kinds of structures in front derive, compound or a micro groove structure that the group battle array obtains.Derive and be divided into two kinds; A kind of is that geometry is derived; Another kind is that expansion is derived, and the geometry is here derived and is meant that function class derives like, variform structure, is for example derived to class of a curve structure, triangle class formation and other different polygon class formation by the square frame class formation; The expansion is here derived and promptly on the basis of Fig. 4 a to Fig. 4 e, is offered new groove to form new micro groove structure; Complementary split ring resonator structure with shown in Fig. 4 a is an example, and Fig. 5 a is its geometry sketch map of deriving, and Fig. 5 b is its geometry sketch map of deriving.Compound being meant here, a plurality of stacks of the micro groove structure of Fig. 4 a to Fig. 4 e form a new micro groove structure, shown in Fig. 6 a, are the structural representation of the complementary split ring resonator structure shown in three Fig. 4 a after compound; Shown in Fig. 6 b, be that the complementary split ring resonator structure shown in two Fig. 4 a and Fig. 4 b are depicted as the common structural representation after compound of complementary helix structure.The group battle array here is meant the micro groove structure that is formed an integral body by the micro groove structure array on same sheet metal shown in a plurality of Fig. 4 a to Fig. 4 e, and is as shown in Figure 7, is the structural representation after a plurality of complementary split ring resonator structural group battle arrays shown in Fig. 4 a.Below be that example is set forth the present invention all with the opening helical ring structure shown in Fig. 4 c.
In addition, among the present invention, first medium substrate and second medium substrate can be processed by ceramic material, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material.Preferably, being processed by macromolecular material, can be macromolecular materials such as FR-4, F4B particularly.
Among the present invention, first sheet metal and second sheet metal are copper sheet or silver strip.Be preferably copper sheet, cheap, conduct electricity very well.
Among the present invention, first feeder line and second feeder line are selected for use with first sheet metal and the same material of second sheet metal and are processed.Be preferably copper.
Among the present invention,,, can adopt various manufactures as long as satisfy design principle of the present invention about the processing and manufacturing of antenna.Prevailing method is to use the manufacturing approach of all kinds of printed circuit board (PCB)s (PCB), certainly, metallized through hole, the PCB of double-sided copper-clad makes also can satisfy processing request of the present invention.Remove this processing mode; Can also introduce other manufacturing process according to the needs of reality; (RFID is the abbreviation of Radio Frequency Identification such as RFID; Be REID, be commonly called as electronic tag) but in the processing mode that makes up of processing mode and iron plate and the PCB of flexible PCB processing, iron plate antenna of employed conductive silver paste printing ink processing mode, all kinds of deformation devices.Wherein, iron plate and PCB combination processing mode is meant that the accurate processing that utilizes PCB accomplishes the processing of antenna micro groove structure, accomplishes other slave part with iron plate.In addition, can also process through etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method.
The present invention also provides a kind of MIMO antenna, and described MIMO antenna is made up of a plurality of above-mentioned antennas 100.The MIMO here promptly is meant multiple-input and multiple-output.Be that all single antennas 100 on the MIMO antenna are launched simultaneously, receive simultaneously.The MIMO antenna can increase considerably the information throughput and the transmission range of system under the prerequisite that need not increase bandwidth or total transmitted power loss.MIMO antenna of the present invention in addition also has very high isolation, and the antijamming capability between a plurality of antennas is strong.
MIMO antenna of the present invention, first feeder line of its each antenna 100 and second feeder line are connected with a reception/transmitter after being electrically connected again, and all reception/transmitters all are connected on the baseband signal processor.
Combine accompanying drawing that embodiments of the invention are described above; But the present invention is not limited to above-mentioned embodiment, and above-mentioned embodiment only is schematically, rather than restrictive; Those of ordinary skill in the art is under enlightenment of the present invention; Not breaking away under the scope situation that aim of the present invention and claim protect, also can make a lot of forms, these all belong within the protection of the present invention.
Claims (10)
1. antenna; It is characterized in that; Said antenna comprises first medium substrate, attached to first sheet metal and second sheet metal on relative two surfaces of said first medium substrate, be provided with first feeder line around first sheet metal, be provided with second feeder line around second sheet metal; Said first feeder line is through said first sheet metal of coupled modes feed-in; Said second feeder line is through said second sheet metal of coupled modes feed-in, and hollow out has first micro groove structure on first sheet metal, to form first metal routing on said first sheet metal, and hollow out has second micro groove structure on second sheet metal, to form second metal routing on said second sheet metal; Said first feeder line is electrically connected with second feeder line, also is coated with second medium substrate on said first sheet metal.
2. antenna according to claim 1 is characterized in that, said first medium substrate is processed by ceramic material, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material.
3. antenna according to claim 1 is characterized in that, said second medium substrate is processed by ceramic material, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material.
4. antenna according to claim 1 is characterized in that, said first micro groove structure is a kind of in complementary split ring resonator structure, complementary helix structure, opening helical ring structure, two opening helical ring structure and the complementary folding line structure.
5. antenna according to claim 1 is characterized in that, said second micro groove structure is a kind of in complementary split ring resonator structure, complementary helix structure, opening helical ring structure, two opening helical ring structure and the complementary folding line structure.
6. antenna according to claim 1 is characterized in that, said first sheet metal is connected through plated-through hole or lead with second sheet metal.
7. antenna according to claim 1 is characterized in that, said first feeder line is connected through plated-through hole or lead with second feeder line.
8. antenna according to claim 1 is characterized in that, said first sheet metal is copper sheet or silver strip.
9. antenna according to claim 1 is characterized in that, said second sheet metal is copper sheet or silver strip.
10. a MIMO antenna is characterized in that, said MIMO antenna comprises a plurality of antennas as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201810385U CN202127092U (en) | 2011-05-31 | 2011-05-31 | Antenna and MIMO (multiple-input multiple-output) antenna with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201810385U CN202127092U (en) | 2011-05-31 | 2011-05-31 | Antenna and MIMO (multiple-input multiple-output) antenna with same |
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| Publication Number | Publication Date |
|---|---|
| CN202127092U true CN202127092U (en) | 2012-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011201810385U Expired - Lifetime CN202127092U (en) | 2011-05-31 | 2011-05-31 | Antenna and MIMO (multiple-input multiple-output) antenna with same |
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| CN (1) | CN202127092U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109086855A (en) * | 2018-07-26 | 2018-12-25 | 北京计算机技术及应用研究所 | The label antenna of interference problem is intensively put in a kind of solution |
-
2011
- 2011-05-31 CN CN2011201810385U patent/CN202127092U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109086855A (en) * | 2018-07-26 | 2018-12-25 | 北京计算机技术及应用研究所 | The label antenna of interference problem is intensively put in a kind of solution |
| CN109086855B (en) * | 2018-07-26 | 2021-09-17 | 北京计算机技术及应用研究所 | Tag antenna for solving problem of interference caused by dense placement |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN KUANG-CHI INNOVATION TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHENZHEN KUANG-CHI INSTITUTE OF ADVANCED TECHNOLOGY Effective date: 20140422 Free format text: FORMER OWNER: SHENZHEN KUANG-CHI INNOVATION TECHNOLOGY CO., LTD. Effective date: 20140422 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518000 SHENZHEN, GUANGDONG PROVINCE TO: 518034 SHENZHEN, GUANGDONG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140422 Address after: 518034 A international business center, No. 1061, Xiang Mei Road, Guangdong, Shenzhen, Futian District, China 18B Patentee after: Shenzhen Kuang-Chi Innovation Technology Co., Ltd. Address before: 518000 Nanshan District City, Guangdong province high tech Zone in the middle of a high tech building, No. 9 software building Patentee before: Shenzhen Kuang-Chi Institute of Advanced Technology Patentee before: Shenzhen Kuang-Chi Innovation Technology Co., Ltd. |
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| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN GUANGQI INTELLIGENT PHOTONICS TECHNOLOGY Free format text: FORMER OWNER: SHENZHEN KUANG-CHI INNOVATION TECHNOLOGY CO., LTD. Effective date: 20150708 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150708 Address after: 518000 Guangdong city of Shenzhen province Futian District Shennan Road and CaiTian Road intersection East Xintiandi Plaza C block 2007-27 Patentee after: Shenzhen Guang Qi intelligent photonic Technology Co., Ltd. Address before: 518034 A international business center, No. 1061, Xiang Mei Road, Guangdong, Shenzhen, Futian District, China 18B Patentee before: Shenzhen Kuang-Chi Innovation Technology Co., Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120125 |