CN202094290U - Dual polarized antenna and MIMO antenna provided with the dual polarized antenna - Google Patents
Dual polarized antenna and MIMO antenna provided with the dual polarized antenna Download PDFInfo
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- CN202094290U CN202094290U CN 201120181030 CN201120181030U CN202094290U CN 202094290 U CN202094290 U CN 202094290U CN 201120181030 CN201120181030 CN 201120181030 CN 201120181030 U CN201120181030 U CN 201120181030U CN 202094290 U CN202094290 U CN 202094290U
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Abstract
The present utility model relates to a dual polarized antenna which comprises a medium substrate, a first metal sheet and a second metal sheet. A first feed line and a second feed line are arranged around the first metal sheet, and a third feed line and a fourth feed line are arranged around the second metal sheet. A first microgroove structure and a second microgroove structure are hollowed out on the first metal sheet, wherein the first microgroove structure is not symmetrical with the second microgroove structure. A third microgroove structure and a fourth microgroove structure are hollowed out on the second metal sheet, wherein the third microgroove structure is not symmetrical with the fourth microgroove structure. The first feed line is electrically connected with the third feed line, the second feed line is electrically connected with the fourth feed line, and the antenna is pre-provided with spaces for embedding electronic components. In the dual polarized antenna, the two sides of the medium substrate are provided with metal sheets, the space area of the antenna is fully utilized, the antenna can work in a rather low work frequency in that environment, and the requirements of the antenna of miniaturization, low work frequency and broadband multimode can be satisfied. Moreover, the present utility model also relates to an MIMO antenna provided with a plurality of dual polarized antennas.
Description
Technical field
The utility model belongs to the communications field, particularly, relates to a kind of dual polarized antenna and has the MIMO antenna of this dual polarized antenna.
Background technology
Dual polarized antenna is a kind of new antenna technology, traditional dual polarized antenna is by having made up+the mutually orthogonal antenna of 45 ° and-45 ° of two consequent pole direction and being operated in simultaneously under the transmission duplex pattern, so its most outstanding advantage is to save the antenna amount of single directional base station; The directional base station (three sectors) of general GSM digital mobile communication network will use 9 antennas, and 3 antennas of each fan-shaped use (space diversity, one two receipts) are if use dual polarized antenna, 1 antenna of each fan-shaped needs; Simultaneously because in dual polarized antenna, ± 45 ° polarization orthogonal can guarantee+isolation between 45 ° and-45 ° of two slave antennas satisfy intermodulation to the requirement of isolation between antennas (〉=30dB), so the space interval between the dual polarized antenna only needs 20-30cm; In addition, dual polarized antenna has the advantage of electrical tilt antenna, uses dual polarized antenna the same with electrical tilt antenna in mobile radio communication, can reduce call loss, reduces to disturb, and improves the service quality of the whole network.If use dual polarized antenna, because dual polarized antenna is not high to setting up installation requirement, do not need expropriation of land to build tower, the iron prop that only needs a diameter 20cm of frame, dual polarized antenna is fixed on the iron prop by corresponding coverage direction gets final product, thereby the saving capital expenditure makes station layout more reasonable simultaneously, and the selected of site, base station is more prone to.
There are bigger otherness in environment that antenna is worked in different products and electromagnetic property, will cause antenna performance to have bigger difference in design and use, so the antenna that requires to design must have stronger adaptability and versatility.In sum, original technology in use will run into the problem of the versatility and the poor performance opposite sex.
Summary of the invention
A technical problem to be solved in the utility model is, at antenna operational environment and the bigger otherness of electromagnetic property existence in different product, cause antenna performance in design and use, to have bigger difference, a kind of dual polarized antenna is provided, and this antenna has stronger adaptability and versatility.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of dual polarized antenna, described antenna comprises medium substrate, first sheet metal and second sheet metal attached to relative two surfaces of medium substrate, be provided with first feeder line around first sheet metal, second feeder line, be provided with the 3rd feeder line around second sheet metal, the 4th feeder line, described first feeder line and second feeder line are all by described first sheet metal of coupled modes feed-in, described the 3rd feeder line and the 4th feeder line are all by described second sheet metal of coupled modes feed-in, hollow out has asymmetrical first micro groove structure and second micro groove structure to form first metal routing on first sheet metal on described first sheet metal, hollow out has asymmetrical the 3rd micro groove structure and the 4th micro groove structure to form second metal routing on second sheet metal on described second sheet metal, described first feeder line is electrically connected with the 3rd feeder line, described second feeder line is electrically connected with the 4th feeder line, and described antenna is preset with the space that electronic component embeds.
Further, described space be arranged between first feeder line, second feeder line, first feeder line and first sheet metal, between second feeder line and first sheet metal and these five positions of first sheet metal at least one on.
Further, described space be arranged between the 3rd feeder line, the 4th feeder line, the 3rd feeder line and second sheet metal, between the 4th feeder line and second sheet metal and these five positions of second sheet metal at least one on.
Further, described space is arranged on first metal routing on first sheet metal, and perhaps described space is arranged on first micro groove structure and/or second micro groove structure.
Further, described space is arranged on second metal routing on second sheet metal, and perhaps described space is arranged on the 3rd micro groove structure and/or the 4th micro groove structure.
Further, described electronic component is perceptual electronic component, capacitive electronic component or resistance.
Further, described space is the pad that is formed on the described antenna.
Further, the scope of described perceptual electronic component inductance value is between 0-5uH.
Further, the scope of described capacitive electronic component capacitance is between 0-2pF.
Implement dual polarized antenna of the present utility model, with respect to existing antenna, has following beneficial effect: by the space that electronic component embeds is set on antenna, can finely tune the performance of antenna by the performance that changes the electronic component that embeds, design the antenna of the requirement of satisfying adaptability and versatility.In addition, the medium substrate two sides is provided with sheet metal, has made full use of the spatial area of antenna, can work under low operating frequency at antenna under this environment, satisfies the requirement of antenna miniaturization, low operating frequency, broadband multimode.In addition; hollow out has asymmetrical first micro groove structure and second micro groove structure on first sheet metal; and hollow out has asymmetrical the 3rd micro groove structure and the 4th micro groove structure on second sheet metal; therefore can produce a plurality of resonance points at an easy rate; and resonance point is difficult for offsetting; be easy to realize multimode resonance, realize the multimodeization of antenna easily.
Another problem to be solved in the utility model provides a kind of MIMO antenna.
The utility model solves the problems of the technologies described above the scheme that is adopted: a kind of MIMO antenna, described MIMO antenna comprises a plurality of above-mentioned dual polarized antennas.
According to MIMO antenna of the present utility model, except the characteristics that possess above-mentioned dual polarized 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 first embodiment of the present utility model;
Fig. 2 is another visual angle figure of Fig. 1;
The structural representation of Fig. 3 antenna second embodiment of the present utility model;
The structural representation of Fig. 4 antenna the 3rd embodiment of the present utility model;
Fig. 5 a is the schematic diagram of complementary split ring resonator structure;
Fig. 5 b is depicted as the schematic diagram of complementary helix structure;
Fig. 5 c is depicted as the schematic diagram of opening helical ring structure;
Fig. 5 d is depicted as the schematic diagram of two opening helical ring structures;
Fig. 5 e is depicted as the schematic diagram of complementary folding line structure;
Fig. 6 a is the schematic diagram of deriving of complementary its geometry of split ring resonator structure shown in Fig. 5 a;
Fig. 6 b is the schematic diagram 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 schematic diagram 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
As shown in Figures 1 and 2, described dual polarized antenna of the present utility model comprises medium substrate 1, first sheet metal 4 and second sheet metal 7 attached to medium substrate 1 relative two surfaces, be provided with first feeder line 2 around first sheet metal 4, second feeder line 3, be provided with the 3rd feeder line 8 around second sheet metal 7, the 4th feeder line 9, described first feeder line 2 and second feeder line 3 are all by described first sheet metal 4 of coupled modes feed-in, described the 3rd feeder line 8 and the 4th feeder line 9 are all by described second sheet metal 7 of coupled modes feed-in, hollow out has asymmetrical first micro groove structure 41 and second micro groove structure 42 to form first metal routing 43 on first sheet metal on described first sheet metal 4, hollow out has asymmetrical the 3rd micro groove structure 71 and the 4th micro groove structure 72 to form second metal routing 73 on second sheet metal on described second sheet metal 7, described first feeder line 2 is electrically connected with the 3rd feeder line 8, described second feeder line 3 is electrically connected with the 4th feeder line 9, and described antenna 100 is preset with the space 6 that electronic component embeds.Two sides at same medium substrate all is provided with sheet metal, and being equivalent to has increased antenna physical length (the physical length size does not increase), so just can design the radio-frequency antenna that is operated under the very low operation frequency in minimum space.Solve the physics limitation of traditional antenna antenna controlled space area when low frequency operation.
Shown in Fig. 1 and 2, described first feeder line 2 is electrically connected by the plated-through hole of opening on medium substrate 1 10 with the 3rd feeder line 8, and described second feeder line 3 is electrically connected by the plated-through hole of opening on medium substrate 1 20 with the 4th feeder line 9.
Among Fig. 1 to Fig. 4, 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 and second micro groove structure.In addition, first feeder line and second feeder line are also represented with hatching.Same, 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 the 3rd micro groove structure and the 4th micro groove structure.In addition, the 3rd feeder line and the 4th feeder line are also represented with hatching.
Figure 1 shows that the stereogram of dual polarized antenna of the present utility model, Fig. 2 is its another visual angle figure.Comprehensive two figure as can be seen, the structure of adhering on a surface of medium substrate and the b surface is identical.Promptly first feeder line, second feeder line, first sheet metal overlap with the 3rd feeder line, the 4th feeder line, second sheet metal respectively in the projection on b surface.Certainly, this is a preferred scheme, and the surperficial structure with the b surface of a as required also can be different.
The 3rd feeder line 8 and the 4th feeder line 9 all are provided with to realize the signal coupling around second sheet metal 7.Other second sheet metal 7 can contact with the 3rd feeder line 8, the 4th feeder line 9, also can not contact.When second sheet metal 7 contacts with the 3rd feeder line 8, inductive coupled between the 3rd feeder line 8 and second sheet metal 7; When second sheet metal 7 does not contact with the 3rd feeder line 8, capacitive coupling between the 3rd feeder line 8 and the sheet metal 7.Equally, when second sheet metal 7 contacts with the 4th feeder line 9, inductive coupled between the 3rd feeder line 8 and two sheet metals 7; When two sheet metals 7 do not contact with the 4th feeder line 9, capacitive coupling between the 4th feeder line 9 and second sheet metal 7.
In the utility model, described medium substrate two first sheet metal on surface relatively can be connected with second sheet metal, also can not connect.Under first sheet metal and the unconnected situation of second sheet metal, between described first sheet metal and second sheet metal by capacitively coupled mode feed; In such cases, can realize the resonance of first sheet metal and second sheet metal by the thickness that changes medium substrate.Under the situation that first sheet metal and second sheet metal are electrically connected (for example the form by lead or plated-through hole is connected), between described first sheet metal and second sheet metal by inductive coupled mode feed.
Described first micro groove structure 41 in the utility model, second micro groove structure 42, the 3rd micro groove structure 71, the 4th micro groove structure 72 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 by several 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 geometry is herein 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; Expansion is herein derived and is promptly offered new groove to form new micro groove structure on the basis of Fig. 5 a to Fig. 5 e; With the complementary split ring resonator structure shown in Fig. 5 a is example, and Fig. 6 a is its geometry schematic diagram of deriving, and Fig. 6 b is its geometry schematic diagram of deriving.Compound being meant herein, 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.Group battle array herein 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, 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.
We know, can obtain the antenna of different polarization modes by the feed placement that changes feeder line, therefore, in the utility model, can obtain dual polarized antenna by changing first feeder line with the 3rd feeder line, second feeder line and the different of the 4th feeder line feed placement.Preferably, the feeding classification of first feeder line and the 3rd feeder line is a horizontal polarization, and the feeding classification of second feeder line and the 4th feeder line is a perpendicular polarization, and every kind of polarization mode can be achieved as follows function according to different needs, for example, following several situation is arranged:
(1) a kind of polarization mode in horizontal polarization and the perpendicular polarization only is used to receive electromagnetic wave, and another kind of polarization mode is used for launching electromagnetic wave.
(2) a kind of polarization mode in horizontal polarization and the perpendicular polarization only is used to receive electromagnetic wave, and another kind of polarization mode is used to transmit and receive electromagnetic wave.
(3) two kinds of polarization modes in horizontal polarization and the perpendicular polarization all are used to transmit and receive electromagnetic wave.
In the utility model, described space 6 is arranged between first feeder line 2, second feeder line 3, first feeder line 2 and first sheet metal 4, between second feeder line 3 and first sheet metal 4 and first sheet metal, 4 these five positions at least one on.Described space 6 also is arranged between the 3rd feeder line 8, the 4th feeder line 9, the 3rd feeder line 8 and second sheet metal 7, between the 4th feeder line 9 and second sheet metal 7 and second sheet metal, 7 these five positions at least one on.Preferably, the setting of a plurality of spaces 6 on antenna as shown in Figures 1 and 2, promptly, on a of medium substrate face, between first feeder line 2, second feeder line 3, first feeder line 2 and first sheet metal 4, between second feeder line 3 and first sheet metal 4 and first sheet metal, 4 these five positions the space 6 that electronic component embeds is set all.Wherein, space on first sheet metal 4 comprises the space that is arranged on first metal routing 43, and be arranged on space 6 on first micro groove structure 41 and second micro groove structure 42, and be arranged on first metal routing, 43 edges that space 6 on first micro groove structure 41 and second micro groove structure 42 connects both sides respectively.Equally, on the b of medium substrate face, between the 3rd feeder line 8, the 4th feeder line 9, the 3rd feeder line 8 and the 4th sheet metal 4, between the 4th feeder line 9 and second sheet metal 7 and second sheet metal, 7 these five positions the space that electronic component embeds is set all.Wherein, space on second sheet metal 7 comprises the space that is arranged on second metal routing 73, and be arranged on space on the 3rd micro groove structure 71 and the 4th micro groove structure 72, and be arranged on second metal routing, 73 edges that space 6 on the 3rd micro groove structure 71 and the 4th micro groove structure 72 connects both sides respectively.
The reserved location in space is not limited to above-mentioned several form on the dual polarized antenna 100 of the present utility model, as long as the space is arranged on the dual polarized antenna.For example, the space can also be arranged on the medium substrate.
Described electronic component of the present utility model is perceptual electronic component, capacitive electronic component or resistance.After in the headspace of antenna, adding this type of electronic component, can improve the various performances of antenna.And, can realize the adjustable of antenna performance parameters by adding the electronic component of different parameters.Adding electronic component in the space can have following several situation because the b face of medium substrate is identical with a face, so below do explanation with a face:
(1) in the space of first feeder line, second feeder line, add perceptual electronic component, using formula:
Square being inversely proportional to of the size of inductance value and operating frequency as can be known, so when the operating frequency that needs be low operating frequency, can be by suitable embedding inductance or the realization of perceptual electronic component.The inductance value range of the perceptual electronic component that adds is preferably between the 0-5uH, because, thereby if the too big alternating signal of inductance value will be had influence on the radiation efficiency of antenna by perceptual electronic component consumption.Certainly also may in the space on first feeder line, second feeder line, add resistance to improve the radiation resistance of antenna.Certainly, also a plurality of spaces can be set on first feeder line and second feeder line, segment space embedded resistor wherein, segment space embeds perceptual electronic component, has both realized the adjusting of operating frequency, can improve the radiation resistance of antenna again.Certainly, also can only in segment space, add electronic component, other space lead short circuit according to other needs.
(2) embed the capacitive electronic component in the space between first feeder line 2 and first sheet metal 4, between second feeder line 3 and first sheet metal 4.Here the signal of regulating between first feeder line 2, second feeder line 3 and first sheet metal 4 by embedding capacitive electronic component is coupled using formula:
Square being inversely proportional to of the size of capacitance and operating frequency as can be known, so when the operating frequency that needs be low operating frequency, can be by suitable embedding capacitive electronic component realization.The capacitance scope of the capacitive electronic component that adds is usually between 0-2pF, but the capacitance that embeds along with the variation of operating frequency of antenna also may exceed the scope of 0-2pF.Certainly, also can between first feeder line 2, second feeder line 3 and first sheet metal 4, preset a plurality of spaces, in not being connected with the space of electronic component, adopt the lead short circuit.
(3) the perceptual electronic component of embedding and/or resistance are arranged in the space 6 on first metal routing 43 of first sheet metal.The purpose that embeds perceptual electronic component herein is the inductance value that increases by the first sheet metal internal resonance structure, thus the effect that the resonance frequency and the bandwidth of operation of antenna played adjusting; The purpose of embedded resistor is to improve the radiation resistance of antenna herein.So, then decide as required to embedding perceptual electronic component or resistance.In not embedding the space of electronic component, adopt the lead short circuit in addition.
(4) embed the capacitive electronic component in the space of on first micro groove structure 41 and second micro groove structure 42, reserving 6.Embedding capacitive electronic component can change the resonance performance of first sheet metal, the Q value and the resonance working point of finally improving antenna.As common practise, we know that the pass of passband BW and resonance frequency w0 and quality factor q is: BW=wo/Q, and this formula shows that Q is big more, and then passband is narrow more, the more little then passband of Q is wide more.Other has: Q=wL/R=1/wRC, and wherein, Q is a quality factor; Supply frequency when w is circuit resonance; L is an inductance; R is the resistance of string; C is an electric capacity, and by the Q=wL/R=1/wRC formula as can be known, Q and C are inverse ratio, therefore, can reduce the Q value by adding the capacitive electronic component, and passband is broadened.
Dual polarized antenna of the present utility model can be the same structure before not adding any element, just by adding different electronic components at diverse location, and the difference of the parameter of electronic component (inductance value, resistance value, capacitance), realize the performance parameter of different antennae, promptly realized versatility, therefore can significantly reduce production costs.
Described space of the present utility model can be a pad, also can be a vacancy.Pad configuration can be referring to the pad on the common circuit board.Certainly, the needs that the design consideration of its size is different can be different.
In addition, in the utility model, medium substrate can be made by ceramic material, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material.Preferably, being made by macromolecular material, can be macromolecular materials such as FR-4, F4B particularly.
In the utility model, first sheet metal and second sheet metal are copper sheet or silver strip.Be preferably copper sheet, cheap, conduct electricity very well.
In the utility model, first feeder line, second feeder line, the 3rd feeder line and the 4th feeder line are selected for use with the same material of first sheet metal and second sheet metal and are made.Be preferably copper.
Said in the utility model " asymmetrical first micro groove structure 41 and second micro groove structure 42 " is meant, both do not constitute axially symmetric structure first micro groove structure 41 and second micro groove structure 42.In other words, promptly can not find a symmetry axis, the micro groove structure 41 of winning is symmetrical arranged with second micro groove structure, 42 relative these symmetry axis on a surface.
In like manner, said in the utility model " asymmetrical the 3rd micro groove structure 41 and the 4th micro groove structure 42 " is meant, both do not constitute axially symmetric structure the 3rd micro groove structure 71 and the 4th micro groove structure 72.In other words, promptly can not find a symmetry axis, make the 3rd micro groove structure 71 be symmetrical arranged with the 4th micro groove structure 72 relative these symmetry axis on the b surface.
In the utility model; first micro groove structure 41 and second micro groove structure, 42 structures are asymmetric; the 3rd micro groove structure 71 and the 4th micro groove structure 72 structures are asymmetric; therefore two locational electric capacity are understood different with inductance; thereby produce at least two different resonance points; and the difficult counteracting of resonance point, help the multimodeization that realizes that antenna is abundant.
The version of first micro groove structure 41 of the present utility model and second micro groove structure 42 can be the same, also can be different.And the degree of asymmetry of first micro groove structure 41 and second micro groove structure 42 can be regulated as required.In like manner, the version of the 3rd micro groove structure 71 of the present utility model and the 4th micro groove structure 72 can be the same, also can be different.And the degree of asymmetry of the 3rd micro groove structure 71 and the 4th micro groove structure 72 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 resonance frequency more than three.
Concrete, the asymmetric situation in the utility model can have following embodiment.
Figure 1 shows that the structural representation of the utility model first embodiment.Fig. 2 is its another visual angle figure.In the present embodiment, as shown in Figure 1, it is opening helical ring structure to be in first micro groove structure 41 on medium substrate a surface and second micro groove structure 42, and first micro groove structure 41 and second micro groove structure 42 do not communicate, but the difference of its size causes the asymmetric of the two structure; Equally, as shown in Figure 2, it is opening helical ring structure to be in the 3rd micro groove structure 71 on medium substrate b surface and the 4th micro groove structure 72, but the difference of its size causes the asymmetric of the two structure; Make antenna have plural at least resonance frequency.In addition, in the present embodiment, lip-deep first sheet metal 4 of medium substrate a, first feeder line 2, second feeder line 3, first micro groove structure 41 and second micro groove structure 42 overlap with second sheet metal 7, the 3rd feeder line 8, the 4th feeder line 9, the 3rd micro groove structure 71 and the 4th micro groove structure 72 respectively in the projection on b surface, and the benefit of doing like this is to simplify technology.
Figure 3 shows that the structural representation of the utility model second embodiment.Because the structure on medium substrate b surface is identical with the structure on a surface, so figure has only represented the structure of a face.In the present embodiment, it is opening helical ring structure to be in first micro groove structure 41 on medium substrate a surface and second micro groove structure 42, and has identical size, first micro groove structure 41 and second micro groove structure 42 do not communicate, but because first micro groove structure 41 and 42 the two the locational setting of second micro groove structure cause the asymmetric of the two structure.
Figure 4 shows that the structural representation of the utility model the 3rd embodiment.Because the structure on medium substrate b surface is identical with the structure on a surface, so figure has only represented the structure of a face.In the present embodiment, first micro groove structure 41 that is in medium substrate a surface is complementary helix structure, and second micro groove structure 42 is an opening helical ring structure, and first micro groove structure 41 and second micro groove structure 42 do not communicate, clearly, first micro groove structure 41 and second micro groove structure 42 are asymmetric.
In addition, in above-mentioned three embodiment, first micro groove structure and second micro groove structure can also be realized the connection of first micro groove structure and second micro groove structure by new groove of hollow out on first sheet metal, and same the 3rd micro groove structure and the 4th micro groove structure also can be realized the connection of the 3rd micro groove structure and the 4th micro groove structure by new groove of hollow out on second sheet metal.Being communicated with back first micro groove structure and second micro groove structure still is unsymmetric structure, the 3rd micro groove structure and the 4th micro groove structure also are unsymmetric structure, therefore, effect of the present utility model is not had too much influence, equally can be so that antenna has plural at least resonance frequency.
In the utility model,,, can adopt various manufactures as long as satisfy design principle of the present utility model about the processing and manufacturing of antenna.Prevailing method is to use the manufacture method 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 utility model.Remove this processing mode, can also introduce other manufacturing process according to the actual needs, (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 the processing mode of flexible PCB processing, iron plate antenna of employed conductive silver paste printing ink processing mode, all kinds of deformation devices and iron plate and PCB.Wherein, iron plate and PCB combination processing mode is meant that the accurate processing that utilizes PCB finishes the processing of antenna micro groove structure, finishes other slave part with iron plate.In addition, can also process by etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method.
The utility model also provides a kind of MIMO antenna, and described MIMO antenna is made up of a plurality of above-mentioned antennas 100.MIMO herein 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 does not need to increase bandwidth or total transmitted power loss.MIMO antenna of the present utility model in addition also has very high isolation, and the antijamming capability between a plurality of antennas is strong.
MIMO antenna of the present utility model, first feeder line of its each antenna 100 and the 3rd feeder line are connected with a reception/transmitter after being electrically connected again, second feeder line and the 4th feeder line are connected with another reception/transmitter after being electrically connected again, and all reception/transmitters all are connected on the baseband signal processor.
In conjunction with the accompanying drawings embodiment of the present utility model is described above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present 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 present utility model.
Claims (10)
1. dual polarized antenna, it is characterized in that, described antenna comprises medium substrate, first sheet metal and second sheet metal attached to relative two surfaces of medium substrate, be provided with first feeder line around first sheet metal, second feeder line, be provided with the 3rd feeder line around second sheet metal, the 4th feeder line, described first feeder line and second feeder line are all by described first sheet metal of coupled modes feed-in, described the 3rd feeder line and the 4th feeder line are all by described second sheet metal of coupled modes feed-in, hollow out has asymmetrical first micro groove structure and second micro groove structure to form first metal routing on first sheet metal on described first sheet metal, hollow out has asymmetrical the 3rd micro groove structure and the 4th micro groove structure to form second metal routing on second sheet metal on described second sheet metal, described first feeder line is electrically connected with the 3rd feeder line, described second feeder line is electrically connected with the 4th feeder line, and described antenna is preset with the space that electronic component embeds.
2. dual polarized antenna according to claim 1, it is characterized in that, described space is arranged between first feeder line, second feeder line, first feeder line and first sheet metal, between second feeder line and first sheet metal and these five positions of first sheet metal at least one on.
3. dual polarized antenna according to claim 1, it is characterized in that, described space is arranged between the 3rd feeder line, the 4th feeder line, the 3rd feeder line and second sheet metal, between the 4th feeder line and second sheet metal and these five positions of second sheet metal at least one on.
4. dual polarized antenna according to claim 2 is characterized in that, described space is arranged on first metal routing on first sheet metal, and perhaps described space is arranged on first micro groove structure and/or second micro groove structure.
5. dual polarized antenna according to claim 3 is characterized in that, described space is arranged on second metal routing on second sheet metal, and perhaps described space is arranged on the 3rd micro groove structure and/or the 4th micro groove structure.
6. according to claim 2 or 3 described dual polarized antennas, it is characterized in that described electronic component is perceptual electronic component, capacitive electronic component or resistance.
7. according to claim 2 or 3 described dual polarized antennas, it is characterized in that described space is the pad that is formed on the described antenna.
8. dual polarized antenna according to claim 6 is characterized in that the scope of described perceptual electronic component inductance value is between 0-5uH.
9. dual polarized antenna according to claim 6 is characterized in that, the scope of described capacitive electronic component capacitance is between 0-2pF.
10. a MIMO antenna is characterized in that, described MIMO antenna comprises a plurality of dual polarized antennas as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120181030 CN202094290U (en) | 2011-05-31 | 2011-05-31 | Dual polarized antenna and MIMO antenna provided with the dual polarized antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120181030 CN202094290U (en) | 2011-05-31 | 2011-05-31 | Dual polarized antenna and MIMO antenna provided with the dual polarized antenna |
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| Publication Number | Publication Date |
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| CN202094290U true CN202094290U (en) | 2011-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120181030 Expired - Lifetime CN202094290U (en) | 2011-05-31 | 2011-05-31 | Dual polarized antenna and MIMO antenna provided with the dual polarized antenna |
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| Country | Link |
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| CN (1) | CN202094290U (en) |
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2011
- 2011-05-31 CN CN 201120181030 patent/CN202094290U/en not_active Expired - Lifetime
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