CN102800945A - Antenna and multiple input multiple output (MIMO) antenna with same - Google Patents

Abstract

The invention relates to an antenna, comprising a dielectric substrate, a first metal sheet and a second metal sheet attached to opposite surfaces of the dielectric substrate, a first feeder is arranged around the first metal sheet, and a second feeder is arranged around the second metal sheet The first metal sheet is hollowed out with an asymmetric first micro-groove structure and the second micro-groove structure to form a first metal wiring on the first metal sheet, and the second metal sheet is hollowed out with an asymmetric third micro-groove structure The groove structure and the fourth micro-groove structure are used to form a second metal trace on the second metal sheet, the first feeder is electrically connected to the second feeder, and the antenna is preset with a space for embedding electronic components. According to the antenna of the present invention, both sides of the dielectric substrate are provided with metal sheets, which fully utilizes the space area of the antenna. In this environment, the antenna can work at a lower operating frequency, and at the same time meet the requirements of antenna miniaturization, low operating frequency, and broadband multi-mode requirements. In addition, the present invention also relates to a MIMO antenna having a plurality of above-mentioned antennas.

Description

Antenna and MIMO antenna having the antenna

technical field

The invention belongs to the communication field, and in particular relates to an antenna and a MIMO antenna with the antenna.

Background technique

In traditional antenna design, when problems such as small antenna space, low operating frequency, and multi-mode operation are encountered, the performance of the antenna will be greatly restricted by the size of the antenna. The electrical length of the antenna corresponding to the reduction of the volume of the antenna will also be affected, and the radiation efficiency and operating frequency of the antenna will change. Traditional dipole antennas and PIFA antennas are powerless when faced with the problems of small size and broadband in existing communication terminals, and the design is extremely difficult and ultimately cannot meet the requirements of use. In the design of traditional antennas in the low frequency band, only external matching lines are used to meet the multi-mode radiation requirements. After adding a matching network to the antenna feeder system, the low-frequency and multi-mode work requirements can be realized functionally, but its radiation efficiency will be reduced. Great reduction because a very large part of the energy is lost in the matching network. The existing metamaterial small antenna, such as the Chinese patent with the publication number CN201490337, integrates a new type of artificial electromagnetic material in the design, so its radiation has very rich dispersion characteristics, and can form a variety of radiation modes, which can avoid cumbersome Impedance matching network, this kind of rich dispersion characteristics brings great convenience to the impedance matching of multi-frequency points. Even so, the existing metamaterial small antennas are greatly restricted in the design process when faced with the problems of existing terminal equipment such as small size, low operating frequency, and broadband multi-mode.

At the same time, there are large differences in the working environment and electromagnetic characteristics of antennas in different products, which will lead to large differences in antenna performance in design and use, so the designed antenna must have strong adaptability and versatility. To sum up, the original technology will encounter the problems of versatility and performance differences in use.

Contents of the invention

A technical problem to be solved by the present invention is to provide an antenna which has a Strong adaptability and versatility.

The technical solution adopted by the present invention to solve the above technical problems is: an antenna, which includes a dielectric substrate, a first metal sheet and a second metal sheet attached to the opposite surfaces of the dielectric substrate, and a second metal sheet is arranged around the first metal sheet. A feeder line, a second feeder line is arranged around the second metal sheet, the first feeder line feeds into the first metal sheet through coupling, the second feeder line feeds into the second metal sheet through coupling, the The first metal sheet is hollowed out with an asymmetric first micro-groove structure and a second micro-groove structure to form a first metal wiring on the first metal sheet, and the second metal sheet is hollowed out with an asymmetric third micro-groove structure and a second micro-groove structure. The fourth micro-groove structure is used to form a second metal trace on the second metal sheet, the first feeder is electrically connected to the second feeder, and the antenna is preset with a space for embedding electronic components.

Further, the space is provided on at least one of the three positions of the first feeder line, between the first feeder line and the first metal sheet, and the first metal sheet.

Further, the space is arranged on at least one of the three positions of the second feeder line, between the second feeder line and the second metal sheet, and the second metal sheet.

Further, the space is provided on the first metal trace on the first metal sheet, or the space is provided on the first micro-groove structure and/or the second micro-groove structure.

Further, the space is provided on the second metal trace on the second metal sheet, or the space is provided on the third microgroove structure and/or the fourth microgroove structure.

Further, the electronic components are inductive electronic components, capacitive electronic components or resistors.

Further, the space is a pad formed on the antenna.

Further, the range of the inductance value of the inductive electronic component is between 0-5uH.

Further, the range of the capacitance value of the capacitive electronic element is between 0-2pF.

Compared with the existing antennas, the antenna implementing the present invention has the following beneficial effects: by setting a space for embedding electronic components on the antenna, the performance of the antenna can be fine-tuned by changing the performance of the embedded electronic components, and the design can meet the requirements of adaptability. Antennas that meet the requirements of performance and versatility. In addition, metal sheets are arranged on both sides of the dielectric substrate, which fully utilizes the space area of the antenna. In this environment, the antenna can work at a lower operating frequency, meeting the requirements of antenna miniaturization, low operating frequency, and broadband multi-mode. In addition, an asymmetric first microgroove structure and a second microgroove structure are hollowed out on the first metal sheet, and an asymmetric third microgroove structure and a fourth microgroove structure are hollowed out on the second metal sheet, so it can be easily It is easy to generate multiple resonance points, and the resonance points are not easy to cancel, it is easy to realize multi-mode resonance, and it is easy to realize multi-mode antenna.

Another problem to be solved by the present invention is to provide a MIMO antenna.

The solution adopted by the present invention to solve the above-mentioned technical problems is: a MIMO antenna, the MIMO antenna includes a plurality of above-mentioned antennas.

According to the MIMO antenna of the present invention, in addition to the characteristics of the antenna itself, it also has a high degree of isolation, and the anti-interference ability between multiple antennas is strong.

Description of drawings

Fig. 1 is a perspective view of the first embodiment of the antenna of the present invention;

Fig. 2 is another perspective view of Fig. 1;

Fig. 3 is a schematic structural diagram of the second embodiment of the antenna of the present invention;

FIG. 4 is a schematic structural diagram of the third embodiment of the antenna of the present invention;

Figure 5a is a schematic diagram of a complementary split resonant ring structure;

Figure 5b shows a schematic diagram of a complementary helix structure;

Figure 5c shows a schematic diagram of the open helical ring structure;

Figure 5d shows a schematic diagram of a double-opened helical ring structure;

Figure 5e is a schematic diagram of a complementary bend line structure;

Fig. 6a is a schematic diagram of the geometric shape derivation of the complementary split resonator structure shown in Fig. 5a;

Fig. 6b is a schematic diagram of the extended derivation of the complementary split resonant ring structure shown in Fig. 5a;

Fig. 7a is a composite structural schematic diagram of three complementary split resonant ring structures shown in Fig. 5a;

Fig. 7b is a composite schematic diagram of two complementary split resonant ring structures shown in Fig. 5a and the complementary helical wire structure shown in Fig. 5b;

FIG. 8 is a schematic structural diagram of four complementary split resonator structures shown in FIG. 5a after they are arrayed.

Detailed ways

As shown in Figures 1 and 2, the antenna of the present invention includes a dielectric substrate 1, a first metal sheet 4 and a second metal sheet 7 attached to the opposite surfaces of the dielectric substrate 1, and a second metal sheet 7 is arranged around the first metal sheet 4. A feeder 2, a second feeder 8 is arranged around the second metal sheet 7, the first feeder 2 feeds into the first metal sheet 4 through coupling, and the second feeder 8 feeds into the first metal sheet 4 through coupling Two metal sheets 7, the first metal sheet 4 is hollowed out with an asymmetric first micro-groove structure 41 and a second micro-groove structure 42 to form a first metal wiring 43 on the first metal sheet, the second metal The sheet 7 is hollowed out with an asymmetrical third microgroove structure 71 and a fourth microgroove structure 72 to form a second metal trace 73 on the second metal sheet. The first feeder 2 is electrically connected to the second feeder 8, so The antenna 100 is preset with a space 6 for embedding electronic components. Arranging metal sheets on both sides of the same dielectric substrate is equivalent to increasing the physical length of the antenna (the actual length does not increase), so that a radio frequency antenna working at an extremely low operating frequency can be designed in a very small space. Solve the physical limitation of the antenna controlled space area when the traditional antenna works at low frequency.

As shown in FIGS. 1 and 2 , the first feeder 2 and the second feeder 8 are electrically connected through the metallized through hole 10 opened on the dielectric substrate 1 . Of course, wire connection can also be used.

In FIGS. 1 to 4 , the hatched part of the first metal sheet is the first metal trace, and the blank part (hollowed out part) on the first metal sheet represents the first microgroove structure and the second microgroove structure. In addition, the first feeder is also indicated by hatching. Similarly, the hatched portion of the second metal sheet is the second metal trace, and the blank portion (hollowed-out portion) on the second metal sheet represents the third microgroove structure and the fourth microgroove structure. In addition, the second feeder is also indicated by hatching.

FIG. 1 is a perspective view of the antenna of the present invention, and FIG. 2 is another perspective view thereof. Combining the two figures, it can be seen that the structures attached to the a surface and b surface of the dielectric substrate are the same. That is, the projections of the first feeder line and the first metal sheet on the surface b coincide with the second feeder line and the second metal sheet respectively. Of course, this is only a preferred solution, and the structures of the surface a and the surface b can also be different according to needs.

The first feeder 2 is arranged around the first metal sheet 4 to realize signal coupling. In addition, the first metal sheet 4 may or may not be in contact with the first feeder 2 . When the first metal sheet 4 is in contact with the first feeder 2, the inductive coupling between the first feeder 2 and the first metal sheet 4; when the first metal sheet 4 is not in contact with the first feeder 2, the first feeder 2 and the metal Capacitive coupling between slices 4.

The second feeder 8 is arranged around the second metal sheet 7 to realize signal coupling. In addition, the second metal sheet 7 may or may not be in contact with the second feeder 8 . When the second metal sheet 7 is in contact with the second feeder 8, the inductive coupling between the second feeder 8 and the second metal sheet 7; when the second metal sheet 7 is not in contact with the second feeder 8, the second feeder 8 and the metal Capacitive coupling between slices 7.

In the present invention, the first metal sheet and the second metal sheet on the two opposite surfaces of the dielectric substrate may or may not be connected. In the case that the first metal sheet is not connected to the second metal sheet, the first metal sheet and the second metal sheet are fed through capacitive coupling; in this case, by changing the thickness of the dielectric substrate, the The resonance between the first metal sheet and the second metal sheet is realized. When the first metal sheet is electrically connected to the second metal sheet (for example, connected in the form of a wire or a metallized through hole), the first metal sheet and the second metal sheet are fed by inductive coupling.

The first microgroove structure 41, the second microgroove structure 42, the third microgroove structure 71, and the fourth microgroove structure 72 in the present invention can all be the complementary split resonant ring structure shown in Figure 5a, Figure 5b One of the complementary helical wire structure shown in Figure 5c, the open spiral ring structure shown in Figure 5c, the double open spiral ring structure shown in Figure 5d, and the complementary bent line structure shown in Figure 5e or through the preceding several The microgroove structure obtained by structure derivation, composite or array. There are two types of derivation, one is geometric shape derivation, and the other is extended derivation. The geometric shape derivation here refers to the derivation of structures with similar functions but different shapes, such as deriving from a box-like structure to a curve-like structure, triangle class structure and other different polygonal class structures; the extended derivation here is to open a new groove on the basis of Fig. 5a to Fig. 5e to form a new micro-groove structure; the complementary split resonator ring structure shown in Fig. 5a is For example, Fig. 6a is a schematic diagram of its geometric shape derivation, and Fig. 6b is a schematic diagram of its geometric shape derivation. Recombination here means that multiple microgroove structures in Figure 5a to Figure 5e are superimposed to form a new microgroove structure, as shown in Figure 7a, which is the composite of three complementary split resonator ring structures shown in Figure 5a Schematic diagram of the structure; as shown in FIG. 7b, it is a schematic structural diagram of two complementary split ring structures shown in FIG. 5a and the complementary helical wire structure shown in FIG. 5b. The array here refers to a plurality of micro-groove structures shown in Figure 5a to Figure 5e arrayed on the same metal sheet to form an integral micro-groove structure, as shown in Figure 8, which is a plurality of complementary micro-groove structures as shown in Figure 5a Schematic diagram of the structure of the type split resonator ring structure after arraying.

In the present invention, the space 6 is arranged on at least one of the three positions of the first feeder 2 , between the first feeder 2 and the first metal sheet 4 , and the first metal sheet 4 . The space is also provided on at least one of the three positions of the second feeder 8 , between the second feeder 8 and the second metal sheet 7 , and the second metal sheet 7 . Preferably, the arrangement of the multiple spaces 6 on the antenna is as shown in Figures 1 and 2, that is, on the surface a of the dielectric substrate, between the first feeder 2, between the first feeder 2 and the first metal sheet 4, and These three positions of the first metal sheet 4 are all provided with spaces for embedding electronic components. Wherein, the space on the first metal sheet 4 includes the space on the first metal wiring 43 and the space on the first micro-groove structure 41 and the second micro-groove structure, and the space on the first micro-groove structure 41 and the space 6 on the second micro-groove structure 42 are respectively connected to the edges of the first metal traces 43 on both sides. Similarly, on the surface b of the dielectric substrate, spaces for embedding electronic components are provided at the three positions of the second feeder 8 , between the second feeder 8 and the second metal sheet 7 , and the second metal sheet 7 . Wherein, the space on the second metal sheet 7 includes the space arranged on the second metal wiring 73, the space arranged on the third microgroove structure 71 and the fourth microgroove structure 72, and the space arranged on the third microgroove structure The spaces 6 on the structure 71 and the fourth microgroove structure 72 are respectively connected to the edges of the second metal traces 73 on both sides. .

The reserved position of the space on the antenna 100 of the present invention is not limited to the above-mentioned several forms, as long as the space is provided on the antenna. For example, spaces may also be provided on a dielectric substrate.

The electronic components of the present invention are inductive electronic components, capacitive electronic components or resistors. After adding such electronic components in the reserved space of the antenna, various performances of the antenna can be improved. And by adding electronic components with different parameters, the performance parameters of the antenna can be adjusted. Adding electronic components in the space can have the following situations. Since the b-side and a-side of the dielectric substrate are the same, only the a-side is used for illustration below:

可知电感值的大小和工作频率的平方成反比，所以当需要的工作频率为较低工作频率时，可以通过适当的嵌入电感或感性电子元件实现。加入的感性电子元件的电感值范围最好在0-5uH之间，因为，若电感值太大交变信号将会被感性电子元件消耗从而影响到天线的辐射效率。当然也可能在第一馈线的空间中加入电阻以改善天线的辐射电阻。当然，第一馈线上有也可设置多个空间，部分空间嵌入电阻，部分空间嵌入感性电子元件，既实现了工作频率的调节，又能改善天线的辐射电阻。当然根据其它需要，也可以只在部分空间中加入电子元件，其它空间用导线短接。(1) Add inductive electronic components to the space of the first feeder, using the formula:

It can be seen that the magnitude of the inductance is inversely proportional to the square of the operating frequency, so when the required operating frequency is a lower operating frequency, it can be realized by properly embedding inductance or inductive electronic components. The inductance value range of the added inductive electronic components is preferably between 0-5uH, because if the inductance value is too large, the alternating signal will be consumed by the inductive electronic components, thereby affecting the radiation efficiency of the antenna. Of course, it is also possible to add a resistor in the space of the first feeder to improve the radiation resistance of the antenna. Of course, there may be multiple spaces on the first feeder, some of which are embedded with resistors, and some of which are embedded with inductive electronic components, which not only realizes the adjustment of the working frequency, but also improves the radiation resistance of the antenna. Of course, according to other needs, electronic components can also be added only in some spaces, and other spaces are short-circuited with wires.

(2) Embedding capacitive electronic components in the space between the first feeder 2 and the first metal sheet 4 . Here, the signal coupling between the first feeder 2 and the first metal sheet 4 is adjusted by embedding capacitive electronic components, using the formula: It can be seen that the capacitance value is inversely proportional to the square of the operating frequency, so when the required operating frequency is a lower operating frequency, it can be realized by embedding appropriate capacitive electronic components. The capacitance value range of the added capacitive electronic components is usually between 0-2pF, but the embedded capacitance value may also exceed the range of 0-2pF as the operating frequency of the antenna changes. Certainly, a plurality of spaces may also be preset between the first feeder 2 and the first metal sheet 4 , and wires are used to short-circuit the spaces not connected with electronic components.

(3) Embedding inductive electronic elements and/or resistors in the space 6 on the first metal wiring 43 of the first metal sheet. The purpose of embedding inductive electronic components here is to increase the inductance value of the internal resonant structure of the first metal sheet, thereby adjusting the resonant frequency and working bandwidth of the antenna; the purpose of embedding resistors here is to improve the radiation resistance of the antenna. As for embedding inductive electronic components or resistors, it depends on the needs. In addition, wires are used to short-circuit in the space where electronic components are not embedded.

(4) Embedding capacitive electronic components in the spaces 6 reserved on the first microgroove structure 41 and the second microgroove structure 42 . Embedding capacitive electronic components can change the resonance performance of the first metal sheet, and ultimately improve the Q value and resonance operating point of the antenna. As common knowledge, we know that the relationship between the passband BW, the resonant frequency w0 and the quality factor Q is: BW=wo/Q, this formula shows that the larger Q is, the narrower the passband is, and the smaller Q is, the wider the passband is. In addition: Q=wL/R=1/wRC, wherein, Q is the quality factor; w is the power frequency when the circuit resonates; L is the inductance; R is the resistance of the string; C is the capacitance, by Q=wL/R= The 1/wRC formula shows that Q and C are inversely proportional. Therefore, the Q value can be reduced by adding capacitive electronic components to widen the passband.

The antenna of the present invention can have the same structure before adding any components, but by adding different electronic components at different positions, and the parameters (inductance value, resistance value, capacitance value) of the electronic components are different, to realize the different antennas. Performance parameters, that is, universality is achieved, so production costs can be greatly reduced.

The space in the present invention may be a pad or a vacancy. The structure of the pads can refer to pads on common circuit boards. Of course, the design of its size will vary according to different needs.

In addition, in the present invention, the dielectric substrate can be made of ceramic material, polymer material, ferroelectric material, ferrite material or ferromagnetic material. Preferably, it is made of polymer materials, specifically polymer materials such as FR-4 and F4B.

In the present invention, the first metal sheet and the second metal sheet are copper sheets or silver sheets. Copper sheet is preferred, which is cheap and has good electrical conductivity.

In the present invention, the first feeder and the second feeder are made of the same material as the first metal sheet and the second metal sheet. Copper is preferred.

The "asymmetrical first micro-groove structure 41 and second micro-groove structure 42" in the present invention means that the first micro-groove structure 41 and the second micro-groove structure 42 do not form an axisymmetric structure. In other words, there is no axis of symmetry on the surface a, so that the first microgroove structure 41 and the second microgroove structure 42 are symmetrically arranged relative to the axis of symmetry.

In the same way, the "asymmetric third microgroove structure 41 and the fourth microgroove structure 42" in the present invention means that both the third microgroove structure 71 and the fourth microgroove structure 72 do not form an axisymmetric structure . In other words, there is no axis of symmetry on the surface b, so that the third microgroove structure 71 and the fourth microgroove structure 72 are arranged symmetrically with respect to the axis of symmetry.

In the present invention, the first microgroove structure 41 and the second microgroove structure 42 are asymmetrical in structure, and the third microgroove structure 71 and the fourth microgroove structure 72 are asymmetric in structure, so the capacitance and inductance on the two positions will be different. different, so as to produce at least two different resonance points, and the resonance points are not easy to cancel, which is beneficial to realize the rich multi-mode of the antenna.

The structures of the first microgroove structure 41 and the second microgroove structure 42 of the present invention may be the same or different. And the degree of asymmetry between the first micro-groove structure 41 and the second micro-groove structure 42 can be adjusted as required. Similarly, the structure forms of the third microgroove structure 71 and the fourth microgroove structure 72 of the present invention may be the same or different. And the degree of asymmetry between the third microgroove structure 71 and the fourth microgroove structure 72 can be adjusted as required. This results in a rich and tunable multi-mode resonance.

And according to the needs of the present invention, more micro-groove structures can be arranged on the same metal sheet, so that the antenna has more than three different resonant frequencies.

Specifically, the asymmetrical situation in the present invention may have the following several embodiments.

FIG. 1 is a schematic structural diagram of a first embodiment of the present invention. Fig. 2 is another perspective view thereof. In this embodiment, as shown in Figure 1, the first microgroove structure 41 and the second microgroove structure 42 on the surface of the dielectric substrate a are all open spiral ring structures, and the first microgroove structure 41 and the second microgroove structure The structures 42 are not interlinked, but the difference in size causes the asymmetry of the two structures; similarly, as shown in Figure 2, the third microgroove structure 71 and the fourth microgroove structure 72 on the surface of the dielectric substrate b are all open spirals Ring structure, but the difference in size leads to the asymmetry of the two structures; so that the antenna has at least two resonant frequencies. In addition, in this embodiment, the projections of the first metal sheet 4, the first feeder line 2, the first microgroove structure 41, and the second microgroove structure 42 on the surface b of the dielectric substrate a are respectively consistent with the second metal sheet 7, The second feeder 8 , the third micro-groove structure 71 and the fourth micro-groove structure 72 overlap, which has the advantage of simplifying the process.

FIG. 3 is a schematic structural diagram of a second embodiment of the present invention. Since the structure of the surface b of the dielectric substrate is the same as that of the surface a, this figure only shows the structure of the surface a. In this embodiment, the first microgroove structure 41 and the second microgroove structure 42 on the surface of the dielectric substrate a are both open spiral ring structures and have the same size. The first microgroove structure 41 and the second microgroove structure 42 are not connected, but due to the arrangement of the positions of the first micro-groove structure 41 and the second micro-groove structure 42, the two structures are asymmetric.

FIG. 4 is a schematic structural diagram of a third embodiment of the present invention. Since the structure of the surface b of the dielectric substrate is the same as that of the surface a, this figure only shows the structure of the surface a. In this embodiment, the first microgroove structure 41 on the surface of the dielectric substrate a is a complementary helical structure, the second microgroove structure 42 is an open spiral ring structure, and the first microgroove structure 41 and the second microgroove structure 42 are not In the same way, it is obvious that the first micro-groove structure 41 and the second micro-groove structure 42 are asymmetrical.

In addition, in the above three embodiments, the first micro-groove structure and the second micro-groove structure can also realize the connection between the first micro-groove structure and the second micro-groove structure by hollowing out a new groove on the first metal sheet, Similarly, the connection between the third micro-groove structure and the fourth micro-groove structure can also be achieved by hollowing out a new groove on the second metal sheet. After being connected, the first microgroove structure and the second microgroove structure are still asymmetric structures, and the third microgroove structure and the fourth microgroove structure are also asymmetric structures, so the effects of the present invention will not be greatly affected. Likewise, the antenna can have at least two or more resonant frequencies.

In the present invention, regarding the processing and manufacturing of the antenna, as long as the design principle of the present invention is satisfied, various manufacturing methods can be adopted. The most common method is to use various printed circuit board (PCB) manufacturing methods. Of course, metallized through holes and double-sided copper-clad PCB manufacturing can also meet the processing requirements of the present invention. In addition to this processing method, other processing methods can also be introduced according to actual needs, such as the processing method of conductive silver paste ink used in RFID (RFID is the abbreviation of Radio Frequency Identification, that is, radio frequency identification technology, commonly known as electronic tags), various types of available Flexible PCB processing of deformation devices, processing methods of iron sheet antennas, and processing methods of combining iron sheets and PCBs. Among them, the combined processing method of iron sheet and PCB refers to the use of precise processing of PCB to complete the processing of the antenna micro-slot structure, and use iron sheet to complete other auxiliary parts. In addition, it can also be processed by etching, electroplating, drilling, photolithography, electron etching or ion etching.

The present invention also provides a MIMO antenna, and the MIMO antenna is composed of multiple antennas 100 mentioned above. The MIMO here refers to multiple-input multiple-output. That is, all individual antennas 100 on the MIMO antenna transmit and receive simultaneously. The MIMO antenna can greatly increase the information throughput and transmission distance of the system without increasing the bandwidth or the total transmission power loss. In addition, the MIMO antenna of the present invention also has a high degree of isolation, and the anti-interference ability between multiple antennas is strong.

In the MIMO antenna of the present invention, the first feeder of each antenna 100 is electrically connected to the second feeder and then connected to a receiver/transmitter, and all receivers/transmitters are connected to a baseband signal processor.

Embodiments of the present invention have been described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementations, and the above-mentioned specific implementations are only illustrative, rather than restrictive, and those of ordinary skill in the art will Under the enlightenment of the present invention, many forms can also be made without departing from the gist of the present invention and the protection scope of the claims, and these all belong to the protection of the present invention.

Claims (10)

1. antenna; It is characterized in that; Said antenna comprises medium substrate, attached to first sheet metal and second sheet metal on relative two surfaces of 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 asymmetrical first micro groove structure and second micro groove structure on first sheet metal, to form first metal routing on said first sheet metal, and hollow out has asymmetrical the 3rd micro groove structure and the 4th 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, and said antenna is preset with the space that electronic component embeds.

2. antenna according to claim 1 is characterized in that, said space is arranged between first feeder line, first feeder line and first sheet metal and reaches at least one of these three positions of first sheet metal.

3. antenna according to claim 1 is characterized in that, said space is arranged between second feeder line, second feeder line and second sheet metal and reaches at least one of these three positions of second sheet metal.

4. antenna according to claim 2 is characterized in that, said space is arranged on first metal routing on first sheet metal, and perhaps said space is arranged on first micro groove structure and/or second micro groove structure.

5. antenna according to claim 3 is characterized in that, said space is arranged on second metal routing on second sheet metal, and perhaps said space is arranged on the 3rd micro groove structure and/or the 4th micro groove structure.

6. according to claim 2 or 3 described antennas, it is characterized in that said electronic component is perceptual electronic component, capacitive electronic component or resistance.

7. according to claim 2 or 3 described antennas, it is characterized in that said space is the pad that is formed on the said antenna.

8. antenna according to claim 6 is characterized in that the scope of said perceptual electronic component inductance value is between 0-5uH.

9. antenna according to claim 6 is characterized in that, the scope of said capacitive electronic component capacitance is between 0-2pF.

10. a MIMO antenna is characterized in that, said MIMO antenna comprises a plurality of antennas as claimed in claim 1.

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