CN102810729B - Mobile phone - Google Patents

Abstract

A mobile phone includes a PCB board and an antenna connected to the PCB board. The antenna includes a dielectric substrate, a first metal sheet and a second metal sheet. A first feeder and a second feeder are arranged around the first metal sheet. A third feeder line and a fourth feeder line are provided. Both the first feeder line and the second feeder line are fed into the first metal sheet through coupling, and the third feeder line and the fourth feeder line are both fed into the second metal sheet through coupling mode. On the first metal sheet The asymmetric first micro-groove structure and the second micro-groove structure are hollowed out to form the first metal wiring on the first metal sheet, and the asymmetric third micro-groove structure and the fourth micro-groove structure are hollowed out on the second metal sheet to A second metal trace is formed on the second metal sheet, the first feeder is electrically connected to the third feeder, the second feeder is electrically connected to the fourth feeder, and the antenna is preset with a space for embedding electronic components. Meet the requirements of miniaturization, low operating frequency, and broadband multi-mode of mobile phone antennas, and provide a multi-functional new service platform for mobile phones.

Description

cell phone

technical field

The invention relates to a mobile communication device, in particular to a mobile phone.

Background technique

Multi-function, miniaturization and low radiation damage are the inevitable trend of mobile phone terminals, and mobile phone antennas directly determine the performance of mobile phone terminals receiving radiation signals, affecting the performance of mobile phone calls or transmitting data information, so the quality of mobile phone antennas is extremely high It is possible to determine the living space of mobile phones in the market. However, on the premise of maintaining the necessary radiation efficiency and gain of the mobile phone, it will be a meaningful thing to minimize the size of the mobile phone antenna. With the vigorous development of the third-generation mobile communication technology and the research and development of the fourth-generation mobile communication technology, mobile phone antennas also affect the progress of mobile communication technology.

The mobile phone antennas of the existing third-generation and fourth-generation mobile communication technologies are mainly designed based on the radiation principle of electric monopole or dipole, such as the most commonly used planar inverted F antenna (PIFA). The radiation operating frequency of the above-mentioned antenna is directly related to the size of the antenna, and the bandwidth is directly related to the area of the antenna, so that the design of the antenna usually requires a physical length of half a wavelength. When the third-generation and fourth-generation mobile communication technologies realize various information service services, it is necessary to equip mobile terminals with antennas of multiple frequency bands at the same time, which greatly increases the difficulty of mobile phone design.

In addition, in some more complex electronic systems, the antenna needs to work in multiple modes, and an additional impedance matching network design is required before feeding into the antenna. However, the impedance matching network additionally increases the feeder design of the electronic system and increases the area of the radio frequency system. At the same time, the matching network also introduces a lot of energy loss, which is difficult to meet the system design requirements of low power consumption in modern communication systems.

Contents of the invention

The technical problem to be solved by the present invention is that it is difficult for existing mobile phone antennas to meet the design requirements of low power consumption, miniaturization and multi-function of modern communication systems based on the physical length limitation of half-wavelength. Therefore, the present invention provides a low power consumption , miniaturization and multi-resonant frequency mobile phones.

A mobile phone includes a PCB board and an antenna connected to the PCB board. The antenna includes a dielectric substrate, a first metal sheet and a second metal sheet attached to opposite surfaces of the dielectric substrate, and a first feeder is arranged around the first metal sheet. , the second feeder line, the third feeder line and the fourth feeder line are arranged around the second metal sheet, the first feeder line and the second feeder line are all fed into the first metal sheet by coupling, the third feeder line and the fourth feeder line The feeder lines are all fed into the second metal sheet through coupling, and 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 trace on the first metal sheet, so The second metal sheet is hollowed out with an asymmetric third micro-groove structure and a fourth micro-groove structure to form a second metal wiring on the second metal sheet, the first feeder is electrically connected to the third feeder, and the second feeder is electrically connected to the third feeder. The feeder is electrically connected to the fourth feeder, and the antenna is preset with a space for embedding electronic components.

Further, the space is provided in at least one of the five positions of the first feeder line, the second feeder line, between the first feeder line and the first metal sheet, between the second feeder line and the first metal sheet, and the first metal sheet .

Further, the space is provided in at least one of the five positions of the third feeder line, the fourth feeder line, between the third feeder line and the second metal sheet, between the fourth 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.

Further, the mobile phone further includes a connection unit, and the antenna is connected to the PCB through the connection unit.

Applying the above-mentioned antenna to the mobile phone, by setting a space for embedding electronic components on the antenna, various optimizations can be made to the matching of the antenna’s transceiver circuit by changing the performance of the embedded electronic components, and a design that satisfies adaptability and versatility Cell phone antenna required. In addition, both sides of the dielectric substrate are provided with metal sheets, making full use of the space area of the antenna. In this environment, the antenna can work at a lower operating frequency, which meets the requirements of miniaturization, low operating frequency, and broadband multi-mode of the mobile phone antenna. Provide a multi-functional new business platform for mobile phones.

At the same time, the above-mentioned antenna structure design further enhances its signal receiving sensitivity, reduces the coupling radiation interference of electronic components around the antenna, and ensures that the mobile phone receives complete and accurate electromagnetic wave information.

Description of drawings

Fig. 1 is a side sketch map of an embodiment in the mobile phone of the present invention;

Fig. 2 is a perspective view of the first embodiment of the antenna shown in Fig. 1;

Fig. 3 is another perspective view of Fig. 2;

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

FIG. 5 is a schematic structural diagram of a third embodiment of the antenna of the present invention;

Figure 6a is a schematic diagram of a complementary split resonant ring structure;

Figure 6b shows a schematic diagram of a complementary helix structure;

Figure 6c shows a schematic diagram of an open helical ring structure;

Figure 6d shows a schematic diagram of a double-opened helical ring structure;

Figure 6e is a schematic diagram of a complementary bend line structure;

Fig. 7a is a schematic diagram of the geometric shape derivation of the complementary split resonator structure shown in Fig. 6a;

Fig. 7b is a schematic diagram of the extended derivation of the complementary split resonant ring structure shown in Fig. 6a;

Fig. 8a is a composite structural schematic diagram of three complementary split resonant ring structures shown in Fig. 6a;

Fig. 8b is a composite schematic diagram of two complementary split resonant ring structures shown in Fig. 6a and a complementary helical wire structure shown in Fig. 6b;

FIG. 9 is a schematic structural diagram of four complementary split ring structures shown in FIG. 6a after they are arrayed.

detailed description

Please refer to Fig. 1, which is a schematic side view of an embodiment of the mobile phone of the present invention, the mobile phone 10 includes a PCB board 99 and an antenna 100 arranged in the mobile phone casing (not shown in the figure), and the antenna 100 passes through A connection unit 98 is connected to a PCB board 99, wherein various electronic components are arranged on the PCB board 99. In this embodiment, the connection unit 98 fixes the antenna 100 on the PCB board 99 by screwing.

As shown in Figures 2 and 3, the antenna 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 first feeder 2 is arranged around the first metal sheet 4. , the second feeder 3, the third feeder 8 and the fourth feeder 9 are arranged around the second metal sheet 7, and the first feeder 2 and the second feeder 3 are fed into the first metal sheet 4 by coupling, so Both the third feeder line 8 and the fourth feeder line 9 are fed into the second metal sheet 7 through coupling, and the first metal sheet 4 is hollowed out with an asymmetrical first micro-groove structure 41 and a second micro-groove structure 42 To form the first metal wiring 43 on the first metal sheet, the second metal sheet 7 is hollowed out with an asymmetrical third micro-groove structure 71 and a fourth micro-groove structure 72 to form a second metal wire on the second metal sheet 7. The first feeder 2 is electrically connected to the third feeder 8 , the second feeder 3 is electrically connected to the fourth feeder 9 , and 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.

The first feeder 2 and the third feeder 8 are electrically connected through the metallized through hole 10 opened on the dielectric substrate 1, and the second feeder 3 and the fourth feeder 9 are electrically connected through the metallized through hole opened on the dielectric substrate 1 20 electrical connections.

In FIGS. 2 to 5 , the hatched portion of the first metal sheet is the first metal trace, and the blank portion (hollowed-out portion) on the first metal sheet represents the first microgroove structure and the second microgroove structure. In addition, the first feeder and the second feeder are 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 third feeder and the fourth feeder are also indicated by hatching.

Fig. 2 is a perspective view of the antenna, 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, the second feeder line, and the first metal sheet on surface b coincide with the third feeder line, the fourth 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.

Both the first feeder 2 and the second feeder 3 are 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 and the second feeder 3 . 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. Similarly, when the first metal sheet 4 is in contact with the second feeder 3, the inductive coupling between the second feeder 3 and the first metal sheet 4; when the first metal sheet 4 is not in contact with the second feeder 3, the second feeder 3 Capacitively coupled with the first metal sheet 4.

Both the third feeder 8 and the fourth feeder 9 are 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 third feeder 8 and the fourth feeder 9 . When the second metal sheet 7 is in contact with the third feeder 8, the inductive coupling between the third feeder 8 and the second metal sheet 7; when the second metal sheet 7 is not in contact with the third feeder 8, the third feeder 8 and the metal Capacitive coupling between slices 7. Similarly, when the second metal sheet 7 is in contact with the fourth feeder 9, the third feeder 8 is inductively coupled with the second metal sheet 7; when the second metal sheet 7 is not in contact with the fourth feeder 9, the fourth feeder 9 and the first The two metal sheets 7 are capacitively coupled.

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 6a, Figure 6b One of the complementary helical wire structure shown in Figure 6c, the open spiral ring structure shown in Figure 6c, the double open spiral ring structure shown in Figure 6d, the complementary bent line structure shown in Figure 6e 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 derivative here is to open a new groove on the basis of Fig. 6a to Fig. 6e to form a new micro-groove structure; the complementary split resonator ring structure shown in Fig. 6a is For example, Fig. 7a is a schematic diagram of its geometric shape derivation, and Fig. 7b is a schematic diagram of its geometric shape derivation. Recombination here means that multiple microgroove structures in Figure 6a to Figure 6e are superimposed to form a new microgroove structure, as shown in Figure 8a, which is the composite of three complementary split resonator ring structures shown in Figure 6a Schematic diagram of the structure; as shown in FIG. 8b, it is a schematic structural diagram of two complementary split ring structures shown in FIG. 6a and the complementary helical wire structure shown in FIG. 6b. The array here refers to a plurality of micro-groove structures shown in Figure 6a to Figure 6e arrayed on the same metal sheet to form an integral micro-groove structure, as shown in Figure 9, which is a plurality of complementary micro-groove structures as shown in Figure 6a Schematic diagram of the structure of the type split resonator ring structure after arraying. The present invention will be described below by taking the split helical ring structure shown in FIG. 6c as an example.

We know that antennas with different polarization modes can be obtained by changing the feeding position of the feeder.

In the present invention, the space 6 is set between the first feeder 2, the second feeder 3, between the first feeder 2 and the first metal sheet 4, between the second feeder 3 and the first metal sheet 4, and the first metal sheet 4 at least one of these five positions. The space 6 is also arranged in the third feeder 8, the fourth feeder 9, between the third feeder 8 and the second metal sheet 7, between the fourth feeder 9 and the second metal sheet 7, and the second metal sheet 7. at least one of the positions. Preferably, the arrangement of multiple spaces 6 on the antenna is as shown in Figure 1 and Figure 2, that is, on the a-plane of the dielectric substrate, on the first feeder 2, the second feeder 3, the first feeder 2 and the first metal sheet 4, between the second feeder 3 and the first metal sheet 4, and at five positions of the first metal sheet 4, spaces 6 for embedding electronic components are provided. Wherein, the space on the first metal sheet 4 includes the space provided on the first metal wiring 43, and the space 6 provided on the first microgroove structure 41 and the second microgroove structure 42, and is arranged on the first microgroove structure 42. The spaces 6 on the trench structure 41 and the second micro-groove structure 42 are respectively connected to the edges of the first metal traces 43 on both sides. Similarly, on the b surface of the dielectric substrate, between the third feeder 8, the fourth feeder 9, between the third feeder 8 and the fourth metal sheet 4, between the fourth feeder 9 and the second metal sheet 7, and between the second metal The five positions of the sheet 7 are provided with spaces for embedding electronic components. 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 is not limited to the above-mentioned several forms, and the space only needs to be set on the dual-polarized 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:

(1) Add inductive electronic components in the space of the first feeder and the second 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 resistors to the spaces on the first feeder and the second feeder to improve the radiation resistance of the antenna. Of course, multiple spaces can also be set on the first feeder and the second 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 spaces between the first feeder 2 and the first metal sheet 4 , and between the second feeder 3 and the first metal sheet 4 . Here, the signal coupling between the first feeder 2, the second feeder 3 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. Of course, multiple spaces can also be preset between the first feeder 2 , the second feeder 3 and the first metal sheet 4 , and wires are used to short-circuit the spaces not connected with electronic components.

(3) Inductive electronic components and/or resistors are embedded in the space 6 on the first metal trace 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 wo, and the quality factor Q is: BW=wo/Q. This formula shows that the larger the Q, the narrower the passband, and the smaller the Q, the wider the passband. 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 dual-polarized antenna of the present invention can have the same structure before adding any components, only by adding different electronic components at different positions, and the parameters (inductance value, resistance value, capacitance value) of the electronic components are different. The performance parameters of different antennas achieve universality, so the production cost 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, the second feeder, the third feeder and the fourth 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 the first embodiment of the antenna. 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 second feeder line 3, the first microgroove structure 41, and the second microgroove structure 42 on the surface b of the dielectric substrate a are respectively the same as those of the first microgroove structure 42 on the surface b. The two metal sheets 7 , the third feeder 8 , the fourth feeder 9 , the third micro-groove structure 71 and the fourth micro-groove structure 72 are overlapped, which has the advantage of simplifying the process.

Fig. 3 is a schematic structural diagram of the second embodiment of the antenna. 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 the third embodiment of the antenna. 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 conductive silver paste ink processing method used in RFID (RFID is the abbreviation of Radio Frequency Identification, that is, radio frequency identification technology, commonly known as electronic tags), and various deformable devices. The flexible PCB processing, the processing method of the iron sheet antenna and the processing method of the combination of the iron sheet and the PCB. 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.

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 (4)

1. A mobile phone, comprising a PCB board and an antenna connected to the PCB board, characterized in that the antenna includes a dielectric substrate, a first metal sheet and a second metal sheet attached to the opposite surfaces of the dielectric substrate, surrounding the first The metal sheet is provided with a first feeder line and a second feeder line, and a third feeder line and a fourth feeder line are arranged around the second metal sheet. Both the first feeder line and the second feeder line are fed into the first metal sheet by coupling, so Both the third feeder line and the fourth feeder line are fed into the second metal sheet through coupling, and the first metal sheet is hollowed out with an asymmetrical first micro-groove structure and a second micro-groove structure to form on the first metal sheet The first metal wiring, the second metal sheet is hollowed out with an asymmetrical third micro-groove structure and the fourth micro-groove structure to form a second metal wiring on the second metal sheet, the first feeder and the third feeder Electrically connected, the second feeder is electrically connected to the fourth feeder, the antenna is preset with a space for embedding electronic components, the electronic components are inductive electronic components, capacitive electronic components or resistors, and the inductive electronic components The range of the inductance value is between 0-5uH, the range of the capacitance value of the capacitive electronic component is between 0-2pF, and the space is a pad formed on the antenna; Wherein, the first metal sheet is not connected or connected to the second metal sheet; When 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; the second metal sheet is realized by changing the thickness of the dielectric substrate Resonance between a metal piece and a second metal piece; When the first metal sheet is connected to the second metal sheet, the first metal sheet and the second metal sheet are fed through inductive coupling; Wherein, the space is set on at least one of the five positions of the first feeder line, the second feeder line, between the first feeder line and the first metal sheet, between the second feeder line and the first metal sheet, and the first metal sheet, Or the space is set on at least one of the five positions of the third feeder line, the fourth feeder line, between the third feeder line and the second metal sheet, between the fourth feeder line and the second metal sheet, and the second metal sheet. 2. The mobile phone according to claim 1, wherein the space is set on the first metal trace on the first metal sheet, or the space is set on the first micro-groove structure and/or the second micro-groove structurally. 3. The mobile phone according to claim 1, wherein the space is set on the second metal trace on the second metal sheet, or the space is set on the third microgroove structure and/or the fourth microgroove structurally. 4. The mobile phone according to claim 1, characterized in that the mobile phone further comprises a connection unit, and the antenna is connected to the PCB through the connection unit.