WO2012122794A1

WO2012122794A1 - Antenna and mimo antenna having the antenna

Info

Publication number: WO2012122794A1
Application number: PCT/CN2011/080437
Authority: WO
Inventors: 刘若鹏; 徐冠雄; 杨松涛; 石小红; 张洋洋
Original assignee: 深圳光启高等理工研究院; 深圳光启创新技术有限公司
Priority date: 2011-03-14
Filing date: 2011-09-30
Publication date: 2012-09-20
Also published as: TW201238142A; TWI515959B

Abstract

Disclosed is an antenna comprising a first dielectric substrate, a first feeder cable, and a first metal sheet attached to a surface of the first dielectric substrate. The first feeder cable is fed into the first metal sheet by coupling. The first metal sheet has engraved thereon a first micro-groove structure to form on the first metal sheet a first metal trace. The antenna is pre-provided with a space for embedding an electronic component. Also provided is an MIMO antenna comprising a plurality of the antenna. In the present invention, by providing in the antenna the space for embedding the electronic component, the performance of the antenna can be fine-tuned by modifying the performance of the embedded electronic component, thus producing antennae that satisfy the requirements of adaptability and versatility.

Description

Antenna and MIMO antenna having the same

[Technical Field]

The present invention relates to the field of communications, and in particular to an antenna and a MIMO antenna having the same.

【Background technique】

With the rapid development of semiconductor technology, higher and higher requirements have been placed on the integration of electronic systems today, and the miniaturization of devices has become a technical issue of great concern to the entire industry. However, unlike IC chips, which follow the development of Moore's Law, as an important component of electronic systems, RF modules face the difficult technical challenges of miniaturization of devices. The RF module mainly includes main components such as mixing, power amplifier, filtering, RF signal transmission, matching network and antenna. Among them, the antenna acts as the radiating unit and receiving device of the final RF signal, and its working characteristics will directly affect the working performance of the entire electronic system. However, important indicators such as antenna size, bandwidth, gain, and radiation efficiency are limited by basic physical principles (gain limits at fixed dimensions, bandwidth limits, etc.). The basic principle of the limits of these indicators makes antenna miniaturization technically far more difficult than other devices, and due to the complexity of electromagnetic field analysis of RF devices, approaching these limits has become a huge technical challenge.

At the same time, with the complication of modern electronic systems, the demand for multi-mode services is becoming more and more important in systems such as wireless communications, wireless access, satellite communications, and wireless data networks. The demand for multimode services further increases the complexity of miniaturized antenna multimode designs. In addition to the technical challenges of miniaturization, multimode impedance matching of antennas has become a bottleneck in antenna technology. On the other hand, the rapid development of multi-input and multi-output systems (MIMO) in the field of wireless communication and wireless data services has further demanded the miniaturization of antenna sizes while ensuring good isolation, radiation performance and anti-interference ability. However, conventional terminal communication antennas are mainly designed based on the radiation principle of electric monopoles or dipoles, such as the most commonly used planar anti-F antenna (PIFA). The radiated operating frequency of a conventional antenna is directly related to the size of the antenna, and the bandwidth is positively correlated with the area of the antenna, so that the design of the antenna usually requires a physical length of half a wavelength. In some more complex electronic systems, where the antenna requires multimode operation, additional impedance matching network design is required before feeding the antenna. However, the impedance matching network additionally increases the feeder design of the electronic system and increases the RF. The area of the system also matches the network and introduces a lot of energy loss. It is difficult to meet the system design requirements of low power consumption. Therefore, the miniaturized, multi-mode new antenna technology has become an important technical bottleneck of contemporary electronic integrated systems.

At the same time, there are large differences in the environment and electromagnetic characteristics of the antennas operating in different products, which will result in large differences in antenna performance in design and use. Therefore, the antennas required to be designed must have strong adaptability. And versatility. In summary, the original technology will encounter problems of versatility and performance differences in use.

[Summary of the Invention]

A technical problem to be solved by the present invention is that there is a large difference in the working environment and electromagnetic characteristics of the antenna in different products, resulting in a large difference in antenna performance in design and use, and an antenna is provided, the antenna having Strong adaptability and versatility.

A technical solution adopted by the present invention to solve the technical problem is: providing an antenna, including a first dielectric substrate, a first feed line, and a first metal piece attached to a surface of the first dielectric substrate, wherein the first feed line is fed by a coupling method Into the first metal piece, the first metal piece is hollowed out with a first micro-groove structure to form a first metal trace on the first metal piece, and the antenna is pre-configured with a space for the electronic component to be embedded.

A technical solution adopted by the present invention to solve the technical problem is: providing a MIMO antenna, comprising: a plurality of antennas, each of the antennas comprising a first dielectric substrate, a first feed line, and a first surface attached to a surface of the first dielectric substrate a metal piece, the first feed line is fed into the first metal piece by coupling, and the first metal piece is hollowed out with a first micro-groove structure to form a metal trace on the first metal piece, and the antenna is pre-configured with a space for the electronic component to be embedded. The space in which the electronic components are embedded can be fine-tuned by changing the performance of the embedded electronic components to design an antenna that satisfies the requirements of adaptability and versatility. [Description of the Drawings]

Figure 1 is a perspective structural view of a first embodiment of an antenna of the present invention;

2 to 4 are schematic structural views of a second embodiment of the antenna of the present invention;

Figure 5 is a front perspective structural view of a third embodiment of the antenna of the present invention;

Figure 6 is a rear perspective structural view of a third embodiment of the antenna of the present invention;

Figure 7 is a perspective structural view of a fourth embodiment of the antenna of the present invention;

Figure 8 is a perspective structural view of a fifth embodiment of the antenna of the present invention;

Figure 9 is a front perspective structural view of a sixth embodiment of the antenna of the present invention;

10 is a rear perspective structural view of a sixth embodiment of the antenna of the present invention;

1 is a view of a side view of a first dielectric substrate of a seventh embodiment of the antenna of the present invention; FIG. 2 is a perspective view of a first dielectric substrate of a seventh embodiment of the antenna of the present invention; a structural view of a second dielectric substrate of the seventh embodiment;

14 is a front perspective structural view of an eighth embodiment of the antenna of the present invention;

Is a rear perspective structural view of an eighth embodiment of the antenna of the present invention;

16 is a schematic diagram of a complementary open resonant ring structure;

17 is a schematic view of a complementary spiral structure;

ί 8 is a schematic view of the structure of the open spiral ring;

19 is a schematic view of a double-open spiral ring structure;

Figure 20 is a schematic view showing the structure of a complementary bending line;

21 is a schematic diagram showing the geometry of the complementary open resonant ring structure shown in FIG. 16; FIG. 22 is a schematic exploded view of the complementary open resonant ring structure shown in FIG.

23 is a schematic structural view of three complementary open resonant ring structures shown in FIG. 16; FIG. 24 is a view showing two complementary open resonant ring structures shown in FIG. 16 and the complementary helical structure shown in FIG. Composite schematic

FIG. 25 is a schematic structural view of the four complementary open resonant ring structure arrays shown in FIG. 16. FIG. 【detailed description】

In the related drawings of the embodiments of the present invention, the following description is made as follows: a portion of the metal sheet drawing hatching is a metal wiring, and a blank portion (a hollow portion) on the metal sheet indicates a microgroove structure. In addition, feeders are also indicated by hatching.

First, a first embodiment of the present invention will be specifically described with reference to Fig. 1. Fig. 1 is a perspective structural view of a first embodiment of the present invention. In order to better describe the structure of the antenna of the present invention, Fig. 1 adopts a perspective view method.

As shown in FIG. 1, the antenna 100 of the present invention includes a first dielectric substrate 1, a first feed line 2, and a first metal piece 4 attached to a surface of the first dielectric substrate 1. The first feed line 2 is fed into the first through coupling. The metal piece 4, the first metal piece 4 is hollowed out with a first micro-groove structure 41 to form a first metal trace 42 on the first metal piece, and the antenna 100 is pre-set with a space for the electronic component to be embedded.

In Fig. 1, the portion of the metal piece 4 on which the hatching is drawn is the first metal trace 42, and the blank portion (the hollow portion) on the first metal piece 4 indicates the first microgroove structure 41. In addition, the first feed line 2 is also indicated by a hatching.

The first feed line 2 is disposed around the first metal piece 4 to effect signal coupling. Further, the first metal piece 4 may or may not be in contact with the first feed line 2. When the first metal piece 4 is in contact with the first feed line 2, the first feed line 2 is inductively coupled with the first metal piece 4, and when the first metal piece 4 is not in contact with the first feed line 2, the feed line 2 and the metal piece 4 Capacitive coupling between.

In this embodiment, the space in which the predetermined electronic component is embedded in the antenna 100 is, for example, the space 51 on the first feeder 2, the space 53 between the first feeder 2 and the first metal piece 4, and the first metal trace 42. The upper space 55, 56, the space 57 on the first microgroove structure 41.

Of course, the reserved position of the space on the antenna 100 of the present invention is not limited to the above five forms, and the space is only required to be disposed on the antenna. For example, the space may also be disposed on the first dielectric substrate 1.

The electronic component of the present invention is an inductive electronic component, a capacitive electronic component or a resistor. By incorporating such electronic components into the reserved space of the antenna, various performances of the antenna can be improved.

Specifically, the purpose of embedding the inductive electronic component is to increase the inductance value of the internal resonant structure of the metal piece. Thereby adjusting the resonant frequency and working bandwidth of the antenna.

Using the formula: f=l/ ( 2ji ^^ ), it can be seen that the magnitude of the inductance is inversely proportional to the square of the operating frequency. The magnitude of the capacitance is inversely proportional to the square of the operating frequency, so when the antenna requires a lower operating frequency This is achieved by appropriate embedded inductors or inductive electronic components.

Similarly, the resonant performance of the metal sheet can be altered by embedding capacitive electronic components to ultimately improve the Q value of the antenna and the resonant operating point.

We know that the relationship between the passband BW and the resonant frequency w0 and the quality factor Q is: BW=wo/Q. This equation shows that the larger the Q, the narrower the passband, and the smaller the Q, the wider the passband. Another: Q=wL/R=l/wRC, where Q is the quality factor; w is the power frequency of the circuit resonance; L is the inductance; R is the resistance of the string; C is the capacitance, by Q=wL/R= The l/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.

In addition to embedding inductors and / or capacitors, resistors can be embedded to improve the radiation resistance of the antenna.

Of course, there may be multiple spaces on the feeder line, in which resistors and inductive electronic components are respectively embedded, which not only realizes the adjustment of the operating frequency, but also improves the radiation resistance of the antenna. In addition, the space where no electronic components are added can be shorted by wires.

In practice, the number of embedded inductive electronic components, capacitors, or resistors, and the number of embedded antennas may be determined according to actual needs, which is not specifically limited in the present invention.

In this embodiment, the inductance of the added inductive electronic component ranges from 0 to 5 uH. If too large an alternating signal is consumed by the inductive component, the radiation efficiency of the antenna is affected.

In this embodiment, the capacitance value of the added capacitive electronic component is usually in the range of 0-2 pF, but the embedded capacitance value may exceed the range of 0-2 pF as the antenna operating frequency changes.

The antenna of the embodiment has good radiation characteristics of multiple frequency bands, and the five main radiation frequencies are distributed from 900 MHz to 5.5 GHz, covering almost GSM, CDMA, Bluetooth, W-Lan (IEEE 802.il protocol), GPS. The main communication frequencies, such as TD-LTE, have very high integration and can change the operating frequency of the antenna by adjusting the inductance value on the feeder. In the present invention, the antenna performance parameters can be adjusted by adding electronic components with different parameters. Therefore, the antenna of the present invention can have the same structure without adding any components, only by adding different electronic components at different positions, and parameters of the electronic components (inductance value, resistance value, capacitance value) to realize different antennas. Performance parameters. That is: versatility is achieved and production costs can be significantly reduced.

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

Further, in the present invention, the dielectric substrate is made of a ceramic material, a polymer material, a ferroelectric material, a ferrite material or a ferromagnetic material. Preferably, it is made of a polymer material, specifically, a polymer material such as FR-4 or F4B.

In the present invention, the metal piece is a copper piece or a silver piece. It is preferably a copper sheet, which is inexpensive and has good electrical conductivity. In the present invention, the feeder is made of the same material as the metal piece, preferably copper.

In the present invention, as for the processing and manufacturing of the antenna, various manufacturing methods can be employed as long as the design principle of the present invention is satisfied. The most common method is to use a variety of printed circuit board (PCB) manufacturing methods. Of course, metallized through-hole, double-sided copper-clad PCB fabrication can also meet the processing requirements of the present invention. In addition to this processing method, other processing means can be introduced according to actual needs, such as RFID (RFID is the abbreviation of Radio Frequency Identification, that is, radio frequency identification technology, commonly known as electronic label), the processing method of conductive silver paste ink, various types can be The flexible PCB processing of the deformation device, the processing method of the iron piece antenna, and the processing method of the combination of the iron piece and the PCB. Among them, the combination of iron sheet and PCB processing means that the precise processing of the PCB is used to complete the processing of the antenna microgroove structure, and the iron piece is used to complete other auxiliary parts. In addition, it can be processed by etching, electroplating, drilling, photolithography, electron engraving or ion engraving.

The second embodiment of the present invention will be described in detail below with reference to Figs. 2-4, wherein Fig. 2 is a perspective structural view of a second embodiment of the antenna of the present invention.

Referring to FIG. 2, as shown in FIG. 2, the main difference between this embodiment and the first embodiment is that, in the embodiment, the first metal piece 4 is further hollowed out with a third groove structure 43, wherein the first groove structure 41 and the third groove structure 43 are asymmetrically arranged.

In the present embodiment, "the first microgroove structure 41 and the third microgroove structure 43 are asymmetrically arranged" means that Both the first microgroove structure 41 and the third microgroove structure 43 do not constitute an axisymmetric structure. In other words, an axis of symmetry is not found on the surface a of the first microgroove structure 41 and the third microgroove structure 43 so that the first microgroove structure 41 and the third microgroove structure 43 are opposite to each other. Symmetrical axisymmetric setting.

In the present invention, the first groove structure 41 and the third groove structure 43 are asymmetric in structure, so the capacitance and inductance at the two positions are different, thereby generating at least two different resonance points, and the resonance point is not easily offset, Conducive to the antenna multi-mode.

The first groove structure 41 of the present invention may have the same structural form as the third groove structure 43, or may be different. And the degree of asymmetry of the first microgroove structure 41 and the third microgroove structure 43 can be adjusted as needed. This enables a rich, adjustable multimode resonance.

Moreover, the present invention can also provide more microgroove structures on the same piece of metal as needed, so that the antenna has more than three different resonant frequencies.

Specifically, the case where the asymmetry is set in the present invention may be at least several cases as shown in Figs. 2 to 4 .

Figure 2 shows the first case of an asymmetric structure. As shown in FIG. 2, the first microgroove structure 41 and the third microgroove structure 43 on the surface of the dielectric substrate a are both open spiral loop structures, and the first microgroove structure 41 and the third microgroove structure 43 are not in communication, but The difference in size results in asymmetry in the structure of the two, such that the antenna 100 has at least two resonant frequencies.

Figure 3 shows the second case of an asymmetric structure. As shown in FIG. 3, the first microgroove structure 41 and the third microgroove structure 43 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 third microgroove. The structure 43 is not in communication, but due to the positional arrangement of both the first microgroove structure 41 and the third trough structure 43, the asymmetry of the structures is caused.

Figure 4 shows the third case of an asymmetric structure. In this embodiment, the first microgroove structure 41 on the surface of the dielectric substrate a is a complementary spiral structure, and the third microgroove structure 43 is an open spiral ring structure, and the first microgroove structure 41 and the third microgroove structure 43 are not In common, it is apparent that the first microgroove structure 41 and the third microgroove structure 43 are asymmetrical.

In addition, in the above three embodiments of FIG. 2 to FIG. 4, the first groove structure 41 and the third groove The structure 43 can also achieve communication of the first groove structure 41 and the third groove structure 43 by hollowing out a new groove on the first metal piece 4. After the communication, the first groove structure 41 and the third groove structure 43 are still asymmetric structures, and therefore, the effect of the present invention is not greatly affected, and the antenna can be made to have at least two resonance frequencies.

It should be noted that, in the second embodiment, as shown in FIG. 2 to FIG. 4, a reserved space (not labeled) for embedding the electronic component is also disposed on the antenna, by adding different parameters in the reserved space ( The electronic components of the inductance value, the resistance value, and the capacitance value can adjust the antenna performance parameters, thereby improving the versatility of the antenna. The reserved space may be disposed, for example, on the feeder, between the feeder and the metal sheet, on the metal trace, or on the first microgroove structure. In other words, in the second embodiment, the arrangement principle and arrangement manner of the reserved space for embedding the electronic component are the same as those described in the foregoing first embodiment, and thus will not be described again.

5 to 6 are schematic views showing the structure of a third embodiment of the antenna of the present invention, wherein Fig. 5 is a front (a) side perspective view of the third embodiment of the antenna of the present invention, and Fig. 6 is a rear (b side) perspective view thereof.

The main difference between the third embodiment and the second embodiment is that a metal piece and a feed line are further attached on the surface of the b opposite to the surface a of the dielectric substrate, and the metal piece and the feed line attached to the a surface and the b surface of the dielectric substrate The structure is the same. That is, the projections of the first feed line 2, the first metal piece 4, the first micro-groove structure 41, and the third micro-slot structure 43 on the b-surface are respectively associated with the second feed line 8, the second metal piece 7, and the second on the b-surface. The microgroove structure 71 and the fourth microgroove structure 72 are coincident, and the first feed line 2 and the second feed line 8 are electrically connected by a metallized through hole 10 opened on the first dielectric substrate 1. Of course, this is only a preferred solution, and the antenna structure of the a surface and the b surface may be different as needed.

It should be noted that, in the third embodiment, as shown in FIG. 5 to FIG. 6, a reserved space (not labeled) for embedding an electronic component is also disposed on the antenna, by adding different parameters in the reserved space ( The electronic components of the inductance value, the resistance value, and the capacitance value can adjust the antenna performance parameters, thereby improving the versatility of the antenna. The reserved space may be disposed, for example, on the feeder, between the feeder and the metal sheet, on the metal trace, or on the first microgroove structure. In other words, in the third embodiment, the setting principle and setting manner of the reserved space for embedding the electronic component are the same as those described in the foregoing first embodiment, and thus are no longer Narration.

FIG. 7 is a perspective structural view of a fourth embodiment of an antenna according to the present invention. As shown in FIG. 7, the fourth embodiment is different from the first embodiment in that, in this embodiment, the antenna 100 further includes a second The metal piece 3 and the second metal piece 3 are disposed opposite to the first metal piece 4 and are electrically connected to the first feed line 2.

The first metal piece 4 is disposed opposite to the second metal piece 3 with a medium therebetween, and the medium may be a high molecular polymer, a ceramic material or the like, or may be air. When the medium is air, the first feed line 2 and the second metal piece 3 are electrically connected by a wire. When the medium is a polymer or a ceramic material, the first feed line 2 and the second metal piece 3 form a metallization on the medium. The through holes 9 are electrically connected to each other.

In the present invention, the medium is made of polytetrafluoroethylene (FR-4) and the second metal piece 3 and the first feed line 2 are electrically connected through the metallized through holes 9.

When the existing antenna operates at a low frequency, the electromagnetic wave of the low frequency band corresponds to a longer wavelength. According to the antenna design principle, the length of the electric radiation of the antenna feed line is increased to make the length of the feed line longer, which is disadvantageous to the miniaturization of the antenna as a whole and is long. The feeder causes the feeder loss to increase, which causes the antenna performance to degrade.

The antenna 100 of the present invention solves the above problem of the existing antenna by adding the second metal piece 3. The problem is solved by the principle that the second metal piece 3 is capacitively coupled with the first metal piece 4, and is applied to the first metal piece 4. The formed first microgroove structure 41 is coupled to feed. The second metal piece 3 is coupled to the first micro-slot structure 41 formed on the first metal piece 4 to effectively reduce the coupling of the first micro-slot structure 41 formed on the first metal piece 4 by the first feed line 2 demand. Therefore, when the antenna 100 operates in the low frequency band, it is not necessary to increase the length of the first feeder 2, and the area of the second metal sheet 3 coupled with the feeding is easy to adjust, and the second metal sheet 3 is coupled and fed only for the different working frequency bands. The area is fine.

It should be noted that, in the fourth embodiment, as shown in FIG. 7, a reserved space (not labeled) for embedding an electronic component is also disposed on the antenna, by adding different parameters (inductance value, The electronic components of the resistance value and the capacitance value can adjust the antenna performance parameters, thereby improving the versatility of the antenna. The reserved space may be disposed, for example, on the feeder, between the feeder and the metal sheet, on the metal trace, or on the first microgroove structure. In other words, in the fourth embodiment, the setting principle and setting manner of the reserved space for embedding the electronic component are the same as those described in the foregoing first embodiment, and thus will not be described herein. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a fifth embodiment of the present invention will be described in detail with reference to FIG. 8, which is a perspective structural view of a fifth embodiment of the antenna of the present invention.

The main difference between the fifth embodiment and the first embodiment is that, in the embodiment, the antenna 100 further includes a second dielectric substrate 5 covering the first metal piece 4.

In this embodiment, since the metal piece 4 is located between the first dielectric substrate 1 and the second dielectric substrate 5, the antenna 100 needs to pass through the second dielectric substrate 5 when receiving or transmitting electromagnetic waves, thereby making the antenna 100 as a whole. The distributed capacitance increases, and the increase of the distributed capacitance can effectively reduce the operating frequency of the antenna. Therefore, the antenna can still work well at low frequencies without changing the length of the feeder, satisfying the requirements of small antenna size, low operating frequency and wideband multimode. .

It should be noted that, in the fifth embodiment, as shown in FIG. 8, a reserved space (not labeled) for embedding the electronic component is also disposed on the antenna, by adding different parameters (inductance value, The electronic components of the resistance value and the capacitance value can adjust the antenna performance parameters, thereby improving the versatility of the antenna. The reserved space may be disposed, for example, on the feeder, between the feeder and the metal sheet, on the metal trace, or on the first microgroove structure. In other words, in the fifth embodiment, the setting principle and setting manner of the reserved space for embedding the electronic component are the same as those described in the foregoing first embodiment, and thus will not be described herein.

9 is a detailed front view of a fifth embodiment of the antenna of the present invention, and FIG. 10 is a front perspective view of the fifth embodiment of the antenna of the present invention. Structure diagram.

Referring to FIG. 9-10, the sixth embodiment is different from the first embodiment in that, in this embodiment, the antenna 100 further includes a second metal piece 7, and the second metal piece 7 is attached to the first dielectric substrate 1 and a surface (b surface), a second feed line 8 is disposed around the second metal piece 7, the second feed line 8 is fed into the second metal piece 7 by coupling, and the second metal piece 7 is hollowed out with the second micro groove structure 71 to A second metal trace 72 is formed on the second metal piece 7, and the first feed line 2 is electrically connected to the second feed line 8.

As shown in FIGS. 9 and 10, the first feed line 2 and the second feed line 8 are electrically connected by a metallized through hole 10 opened in the first dielectric substrate 1. In this embodiment, a second metal strip 7 disposed on the other surface of the first dielectric substrate 1 and a second metal strip 7 disposed on the other surface of the first dielectric substrate 1 are added to the first embodiment. This design is equivalent to increasing the physical length of the antenna. (The actual length does not increase;), so that the RF antenna operating at very low operating frequencies can be designed in a very small space. Solve the physical limitation of the controlled space area of the antenna when the traditional antenna operates at low frequencies.

It should be noted that, in this embodiment, as can be seen from FIG. 9 and FIG. 10, the structures attached to the a surface and the b surface of the first dielectric substrate 1 are the same, that is, the first feed line 2 and the first metal piece 4 are The projection of the b surface coincides with the second feed line 8 and the second metal piece 7, respectively. Of course, this is only a preferred solution, and the structure of the a surface and the b surface may be different as needed.

It should be noted that, in the sixth embodiment, as shown in FIG. 9 to FIG. 10, a reserved space (not labeled) for embedding the electronic component is also disposed on the antenna, by adding different parameters in the reserved space ( The electronic components of the inductance value, the resistance value, and the capacitance value can adjust the antenna performance parameters, thereby improving the versatility of the antenna. The reserved space may be disposed, for example, on the feeder, between the feeder and the metal sheet, on the metal trace, or on the first microgroove structure. In other words, in the sixth embodiment, the arrangement principle and arrangement manner of the reserved space for embedding the electronic component are the same as those described in the foregoing first embodiment, and thus will not be described herein.

The seventh embodiment of the present invention will be described in detail with reference to FIGS. 11-13. FIG. 11 is a perspective view of the first dielectric substrate of the seventh embodiment of the antenna of the present invention, and FIG. 12 is the antenna of the present invention. FIG. 13 is a structural view of a second dielectric substrate 2 of a seventh embodiment of the antenna of the present invention. FIG.

As shown in FIG. 11-13, the present embodiment provides the following improvements on the basis of the sixth embodiment: a second dielectric substrate 2 is disposed, and the surface of the second dielectric substrate 2 coincides with the surface A of the first dielectric substrate 1, The other surface of the two dielectric substrates 2 that is not overlapped with the first dielectric substrate 1 is provided with a third metal piece 30.

A metallized via 23 is formed on the second dielectric substrate 2, and the metal via 23 electrically connects the second feed line 2 and the third metal piece 30. Since the area of the coupling feeding of the third metal piece 30 is easy to adjust, it is only necessary to adjust the coupling feeding area of the third metal piece 30 for the different working frequency bands.

It should be noted that in the seventh embodiment, as shown in FIG. 11 to FIG. 13, the antenna is also disposed. There is a reserved space for electronic components (not shown). By adding electronic components with different parameters (inductance value, resistance value, capacitance value) in the reserved space, the antenna performance parameters can be adjusted, thereby improving the antenna. Universality. The reserved space may be disposed, for example, on the feeder, between the feeder and the metal sheet, on the metal trace, or on the first microgroove structure. In other words, in the seventh embodiment, the setting principle and setting manner of the reserved space for embedding the electronic component are the same as those described in the foregoing first embodiment, and thus will not be described herein.

The eighth embodiment of the present invention will be described in detail with reference to Figs. 14-15, wherein Fig. 14 is a front perspective view of the eighth embodiment of the antenna of the present invention, and Fig. 15 is a rear perspective view of the eighth embodiment of the antenna of the present invention. Structure diagram.

14-15, the eighth embodiment is improved on the basis of the seventh embodiment described above: further recessed on the first metal piece 4 has a third microgroove structure 43, the third microgroove structure 43 and the first The microgroove structure 41 is asymmetrically disposed. The first microgroove structure 41 and the third microgroove structure 43 form a first metal trace 42 on the first metal piece 4, and the second metal strip 7 is further hollowed out to have a fourth microgroove structure. 73. The second microgroove structure 71 and the fourth microgroove structure 73 form a second metal trace 72 on the second metal piece 7.

The asymmetrical arrangement described above is specifically described in the second embodiment of the present invention, and is not described herein again. The technical effect is that at least two different resonance points can be generated, and the resonance point is not easily offset. , is conducive to the rich multi-mode of the antenna.

It should be noted that, in the eighth embodiment, as shown in FIG. 14 to FIG. 15, a reserved space (not labeled) for embedding an electronic component is also disposed on the antenna, by adding different parameters in the reserved space ( The electronic components of the inductance value, the resistance value, and the capacitance value can adjust the antenna performance parameters, thereby improving the versatility of the antenna. The reserved space may be disposed, for example, on the feeder, between the feeder and the metal sheet, on the metal trace, or on the first microgroove structure. In other words, in the eighth embodiment, the setting principle and setting manner of the reserved space for embedding the electronic component are the same as those described in the foregoing first embodiment, and thus will not be described herein.

It should be noted that in all embodiments of the present invention, the microgroove structure may be the complementary open resonant ring structure shown in FIG. 16, the complementary spiral structure shown in FIG. 17, and the open spiral shown in FIG. One of the ring structure, the double-open spiral ring structure shown in FIG. 19, and the complementary bent line structure shown in FIG. 20 is derived from one of the foregoing structures, a plurality of structural composites or a The microgroove structure obtained by the structural array.

Among them, there are two kinds of derivatives, one is geometric shape derivation, and the other is extended derivation. Here, geometric derivation refers to structural derivation with similar functions and different shapes, for example, derived from a box-like structure to a curve-like structure. , triangle class structure and other different polygon class structures.

The extended derivative here is to open a new groove on the basis of FIG. 16 to FIG. 20 to form a new groove structure; taking the complementary open resonant ring structure shown in FIG. 16 as an example, FIG. 21 is a schematic diagram of the geometrical derivative thereof. Figure 22 is a schematic representation of its geometry.

The composite here means that the microgroove structures of FIGS. 16 to 20 are superposed to form a new microgroove structure, as shown in FIG. 23, after the composite of the complementary open resonant ring structures shown in FIG. Schematic diagram of the structure; as shown in FIG. 24, a schematic structural view of the complementary open resonant ring structure shown in FIG. 16 and the complementary spiral structure shown in FIG.

The array here refers to a plurality of groove structures formed on the same metal sheet by a plurality of groove structures shown in FIG. 16 to FIG. 20, and as shown in FIG. 25, a plurality of complementary openings as shown in FIG. Schematic diagram of the structure after the resonant ring structure array. In the above embodiments, the invention has been described by taking the open spiral ring structure shown in Fig. 18 as an example.

The present invention also provides a MIMO antenna, which is composed of a plurality of antennas disclosed in any one of the above one to seven embodiments. On a MIMO antenna, each antenna is simultaneously transmitted and received simultaneously. The MIMO antenna can greatly increase the information throughput and transmission distance of the system without increasing the bandwidth or total transmission power loss. In addition, the MIMO antenna of the present invention also has high isolation and strong anti-interference ability between multiple antennas. Moreover, in the MIMO antenna of the present invention, the first feeder of each antenna is electrically connected to the second feeder and then connected to a receiver/transmitter, and all the receivers/transmitters are connected to a baseband signal processor. The following beneficial effects: By embedding the space for the electronic component to be embedded on the antenna, the embedded electric power can be changed The performance of the sub-components fine-tunes the performance of the antenna to design an antenna that meets the requirements of adaptability and versatility.

The embodiments of the present invention have been described above with reference to the drawings, but the present invention is not limited to the specific embodiments described above, and the specific embodiments described above are merely illustrative and not restrictive, and those skilled in the art In the light of the present invention, many forms may be made without departing from the spirit and scope of the invention as claimed.

Claims

Rights request

An antenna, comprising: a first dielectric substrate, a first feed line, and a first metal piece attached to a surface of the first dielectric substrate, wherein the first feed line is fed through a coupling manner The first metal piece is hollowed out with a first micro-groove structure to form a first metal trace on the first metal piece, and the antenna is pre-configured with a space for electronic components to be embedded.

The antenna according to claim 1, wherein the first metal piece is further hollowed out with a second micro groove structure, wherein the first micro groove structure and the second micro groove structure are asymmetrically disposed.

The antenna according to claim 1, wherein the antenna further comprises a second metal piece, and the second metal piece is disposed opposite to the first metal piece and electrically connected to the first feed line.

The antenna according to claim 1, wherein the antenna further comprises a second dielectric substrate, and the second dielectric substrate covers the first metal piece.

The antenna according to claim 1, wherein the antenna further comprises a second metal piece, the second metal piece is attached to another surface of the first dielectric substrate, surrounding the second metal piece a second feed line is provided, the second feed line is fed into the second metal piece by coupling, and the second metal piece is hollowed out with a second micro groove structure to form a second metal trace on the second metal piece The first feed line is electrically connected to the second feed line.

The antenna according to claim 5, wherein any one of the first microgroove structure, the second trough structure, the third trough structure, and the fourth trough structure is complementary One of the open-loop resonant ring structure, the complementary spiral structure, the open spiral ring structure, the double-open spiral ring structure, and the complementary bent line structure or derived from one of the first five structures, and various structures thereof A composite or a structure obtained by one of the structural arrays.

The antenna according to claim 5, wherein the first metal piece is further hollowed out with a third micro groove structure, and the first micro groove structure and the third micro groove structure are asymmetrically arranged. The first microgroove structure and the third microgroove structure form the first metal trace on the first metal piece, and the second metal strip is further hollowed out to have a fourth microgroove structure, the second The microgroove structure and the fourth microgroove structure are disposed asymmetrically, and the second microgroove structure and the fourth microgroove structure are in the The second metal trace is formed on the two metal sheets.

The antenna according to claim 5, wherein the antenna further includes a second dielectric substrate, a surface of the second dielectric substrate coincides with another surface of the first dielectric substrate, and the second medium The other surface of the substrate is provided with a third metal piece.

The antenna according to claim 8, wherein the first metal piece is further hollowed out with a third micro groove structure, and the third micro groove structure and the first micro groove structure are asymmetrically arranged. The first microgroove structure and the third microgroove structure form a first metal trace on the first metal piece, and the second metal strip is further hollowed out to have a fourth microgroove structure, and the second microgroove structure Forming a second metal trace on the second metal sheet and the fourth microgroove structure.

The antenna according to claim 1, wherein the space is disposed on the first feed line, between the first feed line and the first metal piece, and the metal trace of the metal piece On or on the first microgroove structure and connecting the metal traces on both sides of the first microgroove structure.

The antenna according to claim 1, wherein the electronic component is an inductive electronic component, a capacitive electronic component, or a resistor.

The antenna according to claim 11, wherein the space is a pad formed on the antenna.

The antenna according to claim 11, wherein the inductive electronic component inductance value ranges from 0 to 5 uH, and the capacitive electronic component capacitance value ranges from 0 to 2 pF.

The antenna according to claim 1, wherein the first microgroove structure is a complementary open resonant ring structure, a complementary spiral structure, an open spiral ring structure, a double open spiral ring structure, and a complementary bend. One of the fold line structures is a microgroove structure obtained by deriving, compounding or arraying the foregoing structures.

A MIMO antenna, wherein the MIMO antenna includes a plurality of antennas, each of the antennas includes a first dielectric substrate, a first feed line, and a first metal piece attached to a surface of the first dielectric substrate The first feed line is fed into the first metal piece by a coupling manner, and the first metal piece is hollowed out with a first micro groove structure to form a metal trace on the first metal piece, and the antenna is pre-equipped A space for electronic components to be embedded.

The MIMO antenna according to claim 15, wherein the first metal piece is further hollowed out with a second micro groove structure, wherein the first micro groove structure and the second micro groove structure are asymmetrically arranged. .

The MIMO antenna according to claim 15, wherein the antenna further comprises a second metal piece, the second metal piece being disposed opposite to the first metal piece and electrically connected to the first feed line .

The MIMO antenna according to claim 15, wherein the antenna further comprises a second dielectric substrate, and the second dielectric substrate covers the first metal piece.

The MIMO antenna according to claim 15, wherein the antenna further comprises a second metal piece, the second metal piece is attached to another surface of the first dielectric substrate, surrounding the second metal The sheet is provided with a second feed line, the second feed line is fed into the second metal piece by coupling, and the second metal piece is hollowed out with a second micro groove structure to form a metal trace on the second metal piece. The first feed line is electrically connected to the second feed line.

The MIMO antenna according to claim 19, wherein the first metal piece is further hollowed out with a third micro groove structure, and the first micro groove structure and the third micro groove structure are set to be asymmetric The first microgroove structure and the third microgroove structure form the first metal trace on the first metal piece, and the second metal strip is further hollowed out to have a fourth microgroove structure, the first The second micro-slot structure and the fourth groove structure are disposed asymmetrically, and the second groove structure and the fourth groove structure form the second metal trace on the second metal piece.