CN202150546U - Antenna and MIMO antenna having the same - Google Patents
Antenna and MIMO antenna having the same Download PDFInfo
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- CN202150546U CN202150546U CN 201120180973 CN201120180973U CN202150546U CN 202150546 U CN202150546 U CN 202150546U CN 201120180973 CN201120180973 CN 201120180973 CN 201120180973 U CN201120180973 U CN 201120180973U CN 202150546 U CN202150546 U CN 202150546U
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- sheet metal
- micro groove
- groove structure
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Abstract
The utility model discloses an antenna which comprises a first medium substrate and a second medium substrate. The first medium substrate is provided with a metal sheet and a feed line which is arranged around the metal sheet and is fed into the metal sheet in a coupling manner. The second medium substrate is covered on the first medium substrate. At least a first micro-groove structure and a second micro-groove structure, which are not symmetrical, are hollowed on the metal sheet, so that the antenna has at least two different resonance frequency ranges. The second medium substrate is covered on the first medium substrate, so that the miniaturization and the high performance of the antenna are maintained even though the antenna is working under a low frequency situation. Moreover, the two non-symmetrical micro-groove structures are disposed on the metal sheet so that the antenna has at least two resonance frequency ranges, thereby easily realizing multi-mode effects. Meanwhile, the utility model also discloses an MIMO antenna having the above antenna, which exhibits high isolation.
Description
Technical field
The utility model belongs to the communications field, particularly, relates to a kind of antenna and has the MIMO antenna of this antenna.
Background technology
The antenna usage space is little, operating frequency is low when running in traditional antenna design, when being operated in problem such as multimode, the performance of antenna will be limited by the antenna volume size greatly.The electrical length that reduces corresponding antenna of antenna volume also will be affected, and antenna radiation efficiency and operating frequency will change.Traditional dipole antenna and PIFA antenna just seem unable to do what one wishes in the face of problems such as existing communicating terminal small size, broadbands the time, design difficulty greatly finally can not satisfy the requirement of use.Traditional antenna is only used the radiation requirement that realizes multimode through the terminated line of outside in the low-frequency range design; In antenna-feedback system, be the job requirement that can realize low frequency, multimode on the function behind the adding matching network, very large part energy is lost on the matching network but its radiation efficiency will reduce greatly.Existing ultra material miniature antenna; Like publication number is the Chinese patent of CN201490337; Integrated novel artificial electromagnetic material in design, so its radiation has profuse dispersion characteristics, can form multiple radiation mode; Can remove loaded down with trivial details impedance matching network from, the impedance matching that this abundant dispersion characteristics are multifrequency point brings great convenience.However existing ultra material miniature antenna has also received great restriction in the process of design in the face of problems such as existing terminal equipment small size, low operating frequency, broadband multimodes the time.
Summary of the invention
The utility model technical problem to be solved is, to the above-mentioned deficiency of prior art, proposes a kind ofly to be easy to realize multimodeization and to make still to guarantee its miniaturization and high performance antenna when antenna works in low frequency.
The technical scheme that its technical problem that solves the utility model adopts is, proposes a kind of antenna, and it comprises first medium substrate and second medium substrate; Said first medium substrate is provided with sheet metal and around said sheet metal setting and the feeder line through the said sheet metal of coupled modes feed-in; Said second medium substrate is covered on said first medium substrate; On the said sheet metal at least hollow out have asymmetrical first micro groove structure and second micro groove structure to make said antenna have at least two different resonance band.
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 medium substrate is processed by ceramic material, macromolecular material, ferroelectric material or ferrite material.
Further, said second medium substrate is processed by ceramic material, macromolecular material, ferroelectric material or ferrite material.
Further, said first micro groove structure and said second micro groove structure through etching, bore quarter, photoetching, electronics is carved or ion is carved hollow out on said sheet metal.
Further, said feeder line does not contact with said first sheet metal, through said first sheet metal of capacitive coupled modes feed-in.
Further, but said feeder line connects said first sheet metal through short circuit point makes said feeder line through said first sheet metal of inductive coupled mode feed-in.
The utility model also provides a kind of MIMO antenna, and said MIMO antenna comprises the described antenna of a plurality of claims 1.
Further, all feeder lines in the said MIMO antenna insert a reception/transmitter separately, and all reception/transmitters all insert baseband signal processor.
The utility model makes the distributed capacitance of antenna increase through on first medium substrate, covering second medium substrate, thereby still can guarantee its miniaturization and high-performance during in low frequency operation when antenna; The utility model is provided with asymmetrical two micro groove structures and makes antenna have two resonance band at least on sheet metal in addition, is easy to realize multimodeization.Simultaneously; The utility model also discloses a kind of MIMO antenna with above-mentioned antenna; This 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; This MIMO antenna also has very high isolation simultaneously, and the antijamming capability between a plurality of antennas is strong.
Description of drawings
Fig. 1 is the utility model antenna structure view;
Fig. 2 is the utility model first medium substrate first embodiment front view;
Fig. 3 is the utility model first medium substrate second embodiment front view;
Fig. 4 is the utility model first medium substrate the 3rd embodiment front view;
Fig. 5 a is the sketch map of complementary split ring resonator structure;
Fig. 5 b is depicted as the sketch map of complementary helix structure;
Fig. 5 c is depicted as the sketch map of opening helical ring structure;
Fig. 5 d is depicted as the sketch map of two opening helical ring structures;
Fig. 5 e is depicted as the sketch map of complementary folding line structure;
Fig. 6 a is the sketch map of deriving of complementary its geometry of split ring resonator structure shown in Fig. 5 a;
Fig. 6 b is the sketch map of deriving of complementary its expansion of split ring resonator structure shown in Fig. 5 a;
Fig. 7 a is the structural representation behind the complementary split ring resonator structure shown in three Fig. 5 a compound;
Fig. 7 b is the compound sketch map that the complementary split ring resonator structure shown in two Fig. 5 a and Fig. 5 b are depicted as complementary helix structure;
Fig. 8 is the structural representation after the complementary split ring resonator structural group battle array shown in four Fig. 5 a.
Embodiment
Fig. 1 is the structural representation of the utility model antenna.In order better to describe the utility model antenna structure, Fig. 1 adopts the perspective view technique of painting.As shown in Figure 1, the utility model antenna comprises first medium substrate 1 and is covered in second medium substrate 2 on first medium substrate 1.The feeder line 11 that first medium substrate 1 is provided with sheet metal 10 and is provided with around sheet metal 10, going back hollow out on the sheet metal 10 has asymmetrical first micro groove structure 100 and second micro groove structure 200.Here asymmetric is meant pattern, size and/or locus different of first micro groove structure 100 and second micro groove structure 200, and first micro groove structure 100 that is caused and the resonance frequency of second micro groove structure 200 are different.
First micro groove structure 100 of the utility model and second micro groove structure 200 can be the complementary helix structures shown in the complementary split ring resonator structure shown in Fig. 5 a, Fig. 5 b, a kind of in the two opening helical ring structures shown in the opening helical ring structure shown in Fig. 5 c, Fig. 5 d, the complementary folding line structure shown in Fig. 5 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. 5 a to Fig. 5 e, is offered new groove to form new micro groove structure; Complementary split ring resonator structure with shown in Fig. 5 a is an example, and Fig. 6 a is its geometry sketch map of deriving, and Fig. 6 b is its geometry sketch map of deriving.Compound being meant here, a plurality of stacks of the micro groove structure of Fig. 5 a to Fig. 5 e form a new micro groove structure, shown in Fig. 7 a, are the structural representation of the complementary split ring resonator structure shown in three Fig. 5 a after compound; Shown in Fig. 7 b, be that the complementary split ring resonator structure shown in two Fig. 5 a and Fig. 5 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. 5 a to Fig. 5 e, and is as shown in Figure 8, is the structural representation after a plurality of complementary split ring resonator structural group battle arrays shown in Fig. 5 a.But the utility model first micro groove structure 100 and second micro groove structure 200 are asymmetric, and concrete asymmetric manner specifies in the execution mode below.
Can know that by the antenna radio frequency principle electrical length is to describe the physical quantity of the frequent degree of electromagnetic wave wave form varies, electrical length=physical length/wavelength.When the same day, line worked in low frequency, the electromagnetic wavelength that low frequency is corresponding was longer, kept under the constant prerequisite of electrical length at needs, and increasing physical length is exactly necessary selection.Yet increase the requirement that physical length can not satisfy antenna miniaturization.The utility model covers on first medium substrate 1 and is provided with second medium substrate 2; When antenna is receiving or during launching electromagnetic wave, thereby electromagnetic wave all need could or be received by emission through second medium substrate 2 and makes the distributed capacitance increase of antenna integral body.
can know according to formula, increases distributed capacitance and can effectively reduce operating frequency of antenna and make that under the prerequisite that does not increase physical length, just can to keep electrical length constant.Thereby and can change the whole distributed capacitance of antenna and all can reach the purpose that under the prerequisite that does not change physical length, changes electrical length to different frequencies through changing second medium substrate 2 and the material of first medium substrate 1, so just can in minimum space, design the radio-frequency antenna that is operated under the very low operation frequency.
The material of first medium substrate of the utility model can be selected pottery, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material for use; Wherein macromolecular material preferably polytetrafluoroethylene, F4B or FR-4.The material of second medium substrate of the utility model can be selected pottery, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material for use; Wherein macromolecular material preferably polytetrafluoroethylene, F4B or FR-4.
After the problem that solves the antenna low frequency operation, need to solve antenna multimode operation.Be formed with asymmetrical first micro groove structure and second micro groove structure on the utility model antenna sheet metal.If adopt first micro groove structure and second micro groove structure (resonance frequency is identical) of symmetry, after intercoupling, can cause antenna Q value (weighing the major parameter of inductance component) to increase, corresponding bandwidth BW will diminish, and be unfavorable for the realization of multimode resonance.And adopting asymmetrical at least first micro groove structure and second micro-structural, its electric capacity and inductance can be different, thereby produce a plurality of different resonance points, and the difficult counteracting of resonance point, help the multimodeization that realizes that antenna is abundant.
First micro groove structure 100 of the utility model can be the same with the version of second micro groove structure 200, also can be different.And the asymmetric degree of first micro groove structure 100 and second micro groove structure 200 can be regulated as required.Thereby realize abundant adjustable multimode resonance.
And the utility model as required, on a slice sheet metal, more micro groove structure can also be set, so that described antenna has the different resonant more than 3.
As shown in Figure 2; Structural representation for the utility model first medium substrate first embodiment; Wherein first micro groove structure 100 and second micro groove structure 200 are unsymmetric structure, and wherein, first micro groove structure 100 and second micro groove structure 200 link together; Because the difference of pattern causes the asymmetric of its structure, make the regional separately resonance frequency of win micro groove structure 100 and second micro groove structure 200 different.Derived structure with complementary helix structure shown in Fig. 5 b and complementary helix structure in this execution mode is the example explanation, and the two interconnects.
Shown in Figure 3; Structural representation for the utility model first medium substrate second embodiment; Its first micro groove structure 100 and second micro groove structure 200 are unsymmetric structure, and wherein, first micro groove structure 100 and second micro groove structure 200 are separately independently; Because the difference of pattern causes the asymmetric of its structure, make the regional separately resonance frequency of win micro groove structure 100 and second micro groove structure 200 different.First micro groove structure 100 is the example explanation with the structure of opening helical ring shown in Fig. 5 c in this execution mode, and second micro groove structure 200 is the example explanation with complementary helix structure shown in Fig. 5 b.
Shown in Figure 4; Be the structural representation of the utility model first medium substrate the 3rd embodiment, its first micro groove structure 100 and second micro groove structure 200 are unsymmetric structure, wherein; First micro groove structure 100 and second micro groove structure 200 are separately independently; Its pattern is identical, but the difference of its size causes the asymmetric of its structure, and the resonance frequency in zone is different separately to make win micro groove structure 100 and second micro groove structure 200.In this execution mode, first micro groove structure 100 and second micro groove structure 200 are the example explanation with the complementary helix structure shown in Fig. 5 c all.
The utility model is not limited to the above embodiments, has engraved asymmetrical first micro groove structure and second micro groove structure on the sheet metal at least, makes said antenna have at least two different resonant, just should be within the protection range of the utility model.
The utility model also provides a kind of MIMO antenna, and described MIMO antenna is made up of a plurality of above-mentioned antennas.The MIMO here promptly is meant multiple-input and multiple-output.Be that all single antennas 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.The MIMO antenna of the utility model also has very high isolation in addition, and the antijamming capability between a plurality of antennas is strong.
The MIMO antenna of the utility model, the feeder line 11 of its each antenna is connected with a reception/transmitter, and all reception/transmitters all are connected on the baseband signal processor.
Combine accompanying drawing that the embodiment of the utility model is described above; But the utility model 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 the enlightenment of the utility model; Not breaking away under the scope situation that the utility model aim and claim protect, also can make a lot of forms, these all belong within the protection of the utility model.
Claims (10)
1. an antenna is characterized in that: comprise first medium substrate and second medium substrate; Said first medium substrate is provided with sheet metal and around said sheet metal setting and the feeder line through the said sheet metal of coupled modes feed-in; Said second medium substrate is covered on said first medium substrate; On the said sheet metal at least hollow out have asymmetrical first micro groove structure and second micro groove structure to make said antenna have at least two different resonance band.
2. antenna as claimed in 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.
3. antenna as claimed in 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.
4. antenna as claimed in claim 1 is characterized in that: said first medium substrate is processed by ceramic material, macromolecular material, ferroelectric material or ferrite material.
5. antenna as claimed in claim 1 is characterized in that: said second medium substrate is processed by ceramic material, macromolecular material, ferroelectric material or ferrite material.
6. antenna as claimed in claim 1 is characterized in that: said first micro groove structure and said second micro groove structure through etching, bore quarter, photoetching, electronics is carved or ion is carved hollow out on said sheet metal.
7. asymmetrical antenna as claimed in claim 1 is characterized in that: said feeder line does not contact with said first sheet metal, through said first sheet metal of capacitive coupled modes feed-in.
8. asymmetrical antenna as claimed in claim 1 is characterized in that: make said feeder line through said first sheet metal of inductive coupled mode feed-in but said feeder line connects said first sheet metal through short circuit point.
9. MIMO antenna, it is characterized in that: said MIMO antenna comprises the described antenna of a plurality of claims 1.
10. MIMO antenna as claimed in claim 9 is characterized in that: all feeder lines in the said MIMO antenna insert a reception/transmitter separately, and all reception/transmitters all insert baseband signal processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120180973 CN202150546U (en) | 2011-05-31 | 2011-05-31 | Antenna and MIMO antenna having the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120180973 CN202150546U (en) | 2011-05-31 | 2011-05-31 | Antenna and MIMO antenna having the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202150546U true CN202150546U (en) | 2012-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120180973 Expired - Lifetime CN202150546U (en) | 2011-05-31 | 2011-05-31 | Antenna and MIMO antenna having the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202150546U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013127128A1 (en) * | 2012-03-01 | 2013-09-06 | 深圳光启高等理工研究院 | Antenna device |
| CN114142225A (en) * | 2021-12-01 | 2022-03-04 | 青岛大学 | Implanted antenna applied to ISM frequency band |
-
2011
- 2011-05-31 CN CN 201120180973 patent/CN202150546U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013127128A1 (en) * | 2012-03-01 | 2013-09-06 | 深圳光启高等理工研究院 | Antenna device |
| CN114142225A (en) * | 2021-12-01 | 2022-03-04 | 青岛大学 | Implanted antenna applied to ISM frequency band |
| CN114142225B (en) * | 2021-12-01 | 2023-11-03 | 青岛大学 | Be applied to implantation antenna of ISM frequency channel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: SHENZHEN KUANG-CHI INNOVATION TECHNOLOGY CO., LTD. Effective date: 20140423 Owner name: SHENZHEN KUANG-CHI INNOVATION TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHENZHEN KUANG-CHI INSTITUTE OF ADVANCED TECHNOLOGY Effective date: 20140423 |
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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: 20140423 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: 20150713 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150713 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: 20120222 |