WO2017156906A1

WO2017156906A1 - Metal shell, antenna apparatus, and mobile terminal

Info

Publication number: WO2017156906A1
Application number: PCT/CN2016/086591
Authority: WO
Inventors: 王新宝
Original assignee: 广东欧珀移动通信有限公司
Priority date: 2016-03-18
Filing date: 2016-06-21
Publication date: 2017-09-21

Abstract

Provided in the present invention is a metal shell, the metal shell comprising a long edge and a short edge connected to the long edge, the metal shell being provided with a micro-seam band, the micro-seam band comprising a plurality of micro-seams, metal strips being formed between adjacent micro-seams, and the micro-seam band being arranged near to the short edge of the metal shell, dividing the metal shell into at least one metal region. The metal shell of the present invention ensures the overall appearance of the mobile terminal, and simultaneously prevents the signal of the antenna apparatus from experiencing interference and increases the bandwidth of the antenna apparatus. Also provided in the present invention is an antenna apparatus and a mobile terminal.

Description

Metal housing, antenna device and mobile terminal

Technical field

The present invention relates to mobile communication technologies, and in particular, to a metal housing, an antenna device, and a mobile terminal.

Background technique

In the market, all-metal housings are becoming more and more popular among consumers, but considering the limitations of antenna devices, metal and non-metal housings are usually used, and antenna devices are located in non-metal areas to prevent signals to the antenna device. Form a shield.

The housing of the existing mobile terminal mostly adopts a three-stage structure, that is, the metal area in the middle of the housing is separated from the metal area at both ends of the housing by an isolation strip filled with a non-signal shielding material. The antenna device is placed close to the isolation barrier to prevent its signal from being shielded. However, the spacers will be clearly visible to the consumer and thus affect the overall appearance of the housing of the mobile terminal.

Summary of the invention

The invention provides a metal casing, an antenna device and a mobile terminal, which can ensure the overall appearance effect of the mobile terminal, and can prevent the signal of the antenna device from being interfered and the bandwidth of the antenna device can be improved.

The present invention provides a metal casing including a long side and a short side connected to the long side, the metal casing is provided with a micro slit belt, and the micro slit belt includes a plurality of micro slits. A metal strip is formed between the adjacent micro slits, and the micro slit strip is disposed adjacent to a short side of the metal shell to divide the metal shell into at least one metal region.

Wherein, the micro slit tape is linear.

Wherein the edge of the metal casing includes an arcuate segment, and the microslit zone includes an arcuate portion that matches the arcuate segment of the metal casing.

Wherein the opening of the microslit tape is disposed on the short side of the metal casing.

Wherein the number of the microslit strips is one and extends non-penetratingly from the edge of the metal housing to the inside of the metal shell such that the metal shells on both sides of the micro slit strip are connected to each other In a whole.

Wherein the number of the micro slit tapes is one, and the metal shell is divided into two separate metals region.

Wherein the number of the micro slit tapes is two, and the metal shell is divided into a first metal region located at an intermediate position and a second metal region and a third metal region respectively located at both ends of the first metal region.

Wherein, the spacing between two adjacent micro slits is greater than the slit width of the micro slit.

Wherein the microslit strip comprises a first curved segment, a straight segment and a second curved segment connected in series, the first curved segment comprises a first opening, the second curved segment comprises a second opening, the first Both the opening and the second opening are disposed on the short side of the metal housing.

The shape of the first curved segment and the second curved segment is a circular arc shape, an elliptical arc shape or a polygonal line shape.

Wherein the straight line segment is parallel to the short side.

Wherein the microslit tape comprises a first microslit tape and a second microslit tape, the first microslit tape comprising a connected first straight segment and a third curved segment, the second microslit tape comprising a continuous a second straight line segment and a fourth curved portion, the third curved portion includes a third opening, the fourth curved portion includes a fourth opening, and the third opening and the fourth opening are both disposed on the metal shell The short side of the body; the first straight line segment and the second straight line segment extend in the same direction.

The shape of the third curved segment and the fourth curved segment is a circular arc shape, an elliptical arc shape or a polygonal line shape.

Wherein, the micro slit tape comprises 3 to 20 micro slits.

Wherein, the slit width of each of the micro slits is 0.03 to 0.4 mm.

The present invention also provides an antenna device comprising a radio frequency transceiver circuit, a matching circuit, and a metal housing according to any of the preceding claims, wherein the radio frequency transceiver circuit is electrically connected to the metal housing through the matching circuit.

Wherein, the metal casing is grounded through the grounding wire, and the grounding wire is provided with a switch for controlling the grounding wire to be turned on and off.

The number of the radio frequency transceiver circuit and the matching circuit are both one, and the radio frequency transceiver circuit is electrically connected to the metal area through the matching circuit.

The radio frequency transceiver circuit includes a first radio frequency transceiver circuit and a second radio frequency transceiver circuit, the matching circuit includes a first matching circuit and a second matching circuit, and the first radio frequency transceiver circuit passes through the The first matching circuit is electrically connected to the metal region, and the second RF transceiver circuit is electrically connected to the metal region through the second matching circuit.

The present invention also provides a mobile terminal comprising the antenna device according to any of the preceding claims.

Compared with the prior art, the present invention can provide the micro-seam tape on the metal casing, which is not easy to attract the attention of the consumer, can ensure the integrity of the metal casing, and uses the metal casing provided with the micro-slit tape as the antenna. The radiator of the device can avoid interference of the signal of the antenna device.

DRAWINGS

1 is a schematic diagram of an antenna apparatus according to a first embodiment of the present invention;

Figure 2 is a schematic illustration of an antenna device in accordance with a second embodiment of the present invention;

Fig. 3 is a schematic diagram of an antenna apparatus according to a third embodiment of the present invention.

Figure 4 is a schematic illustration of an antenna device in accordance with a fourth embodiment of the present invention;

Figure 5 is a schematic diagram of an antenna apparatus according to a fifth embodiment of the present invention;

Figure 6 is a schematic diagram of an antenna apparatus in accordance with a sixth embodiment of the present invention.

Figure 7 is a schematic diagram of an antenna apparatus according to a seventh embodiment of the present invention;

Figure 8 is a schematic diagram of an antenna apparatus according to an eighth embodiment of the present invention;

Figure 9 is a schematic illustration of a mobile terminal in accordance with the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Embodiment 1

Referring to FIG. 1, there is shown an antenna apparatus 100 according to a first embodiment of the present invention. The antenna apparatus 100 includes a radio frequency transceiver circuit 11, a matching circuit 12, and a metal casing 13. The radio frequency transceiver circuit 11 passes through the matching circuit 12 and a metal casing. 13 is electrically connected so that the metal casing 13 is used as a radiator of the antenna device 100. And the metal casing 13 is grounded through a grounding wire 14, and the grounding wire 14 is provided with a switch 15 for controlling its on and off. The metal casing 13 is provided with a linear micro-slit tape 130, and the micro-slit tape 130 The metal housing 13 on both sides of the microslit strip 130 is integrally connected to each other from the edge of the metal casing 13 non-penetratingly to the inside of the metal casing 13, so that the micro slits 1301 in the microslit belt 130 are parallel. Extending on the short side of the housing 13.

The microslit tape 130 shown in FIG. 1 includes six micro slits 1301 having a slit width of between 0.03 and 0.5 mm. Since the width of the micro slits is sufficiently small, it is not easy to attract the attention of the consumer, thereby ensuring the integrity of the metal casing 2. And the microslit strip 130 allows electromagnetic signals within the metal housing 13 to be radiated. The spacing between the adjacent two micro slits 1301 is greater than the slit width of the micro slits 1301, and a metal strip is formed between the adjacent micro slits 1301. The material of the metal strip is the same as that of the metal shell 13, so The integrity of the metal casing 13 is further ensured in appearance. The micro slit 1301 is filled with a non-signal shielding material, so that the electromagnetic signal of the antenna device 100 can be prevented from being shielded.

It should be noted that the number of the micro slits 1301 of the microslit tape 130 may be 3 to 20, and the number of the micro slits should be determined according to specific needs, such as the requirements of the appearance of the metal casing 13 and the electromagnetic signals of the antenna device 100. Radiation conditions.

As shown in FIG. 1 , the RF transceiver circuit 11 is a feed of the antenna device 100 , and the matching circuit 12 functions to perform impedance matching and balance matching between the RF transceiver circuit 11 and the metal casing 13 to ensure that the antenna device 100 can normal work. In addition, the metal casing 13 is grounded through the grounding wire 14, and the grounding wire 14 is provided with a switch 15 for controlling its on and off. In FIG. 1, when the switch 15 is closed, the metal casing 13 is grounded, and the frequency of the electromagnetic signal that the antenna device 100 can radiate changes, so that the bandwidth of the antenna device 100 can be increased.

Embodiment 2

Referring to Fig. 2, there is shown an antenna device 200 according to a second embodiment of the present invention. The number of microslit strips 230 is one, and Fig. 2 is changed from Fig. 1. The number and slit width of the micro slits 2301 of the micro slit strips 230. Unlike the number and slit width of the micro slits 1301 in the first embodiment shown in FIG. 1, unlike the antenna device 100 of the first embodiment shown in FIG. 1, the microslit tape 230 is parallel to the metal casing 23. The short sides extend and penetrate the metal housing 23, thereby dividing the metal housing 23 into two

separate metal regions

231 and 232, as shown in FIG. 2, wherein one metal region 231 has a larger area than the other metal region 232. In the antenna device 200, the matching circuit 22 and the grounding wire 24 with the switch 25 are both electrically connected to the metal region 232, at which time the metal region 231 can be coupled with the metal region 232 to radiate the electromagnetic signal with The ground line 24 of the switch 25 can change the frequency of the electromagnetic radiation, thereby improving The bandwidth of the antenna device 200. Of course, the matching circuit 22 and the ground line 24 may be electrically connected to the metal region 231, and the matching circuit 22 and the ground line 24 may also be electrically connected to the

metal regions

231 and 232, respectively. When the matching circuit is electrically connected to one of the

metal regions

231 and 232, since the metal region 231 and the metal region 232 are different in size and structure, the ground line 24 is electrically connected to different metal regions, and the antenna device 200 can transmit and receive electromagnetic signals. The frequency changes, so that the grounding line 24 can be connected to different metal regions to achieve the frequency selective effect, thereby increasing the bandwidth of the antenna device 200.

Embodiment 3

Referring to Fig. 3, there is shown an antenna device 300 according to a third embodiment of the present invention, in which the number of microslit strips 330 is two, and Fig. 3 is changed from Fig. 1, the number of micro slits 3301 of the micro slit strips 330 and The slit width is the same as the number and slit width of the micro slits 1301 in the first embodiment shown in Fig. 1, which divide the metal casing 33 into the first metal regions 331 at the intermediate positions and are respectively located The second metal region 332 and the third metal region 333 at both ends of the first metal region 331, as shown in FIG. 2, the area of the first metal region 331 is larger than the second metal region 332, and the area of the second metal region 332 is the third metal. Area 333 is equal. In the antenna device 300, the matching circuit 32 and the grounding wire 34 with the switch 35 are both electrically connected to the third metal region 333, and the first metal region 331 and the second metal region 332 may be combined with the third metal region 333. Coupling is formed to radiate the electromagnetic signal, and the ground line 34 can change the frequency of the electromagnetic radiation, thereby increasing the bandwidth of the antenna device 300. Of course, there may be other connection relationships between the matching circuit 32 and the ground line 34 and the metal region. As shown in FIG. 3, when the matching circuit 32 is electrically connected to one of the metal regions, since the size, structure, and position of the first metal region 331, the second metal region 332, and the third metal region 333 are different, the ground line 34 is different. When the metal regions are electrically connected, the frequency of the electromagnetic signals that can be transmitted and received by the antenna device 300 changes. Therefore, the grounding wires 34 can be connected to different metal regions to achieve the frequency selective effect, thereby increasing the bandwidth of the antenna device 300.

It should be noted that the micro slit 21 may also extend or extend partially parallel to the long side of the metal casing, and the specific structure may depend on the requirements of the appearance and the specific parameters of the antenna device. The metal casing 2 can move the front or back cover of the terminal, and can also be a side frame of the mobile terminal.

Embodiment 4

Referring to FIG. 4, there is shown an antenna apparatus 400 according to a fourth embodiment of the present invention. The antenna apparatus 400 includes a radio frequency transceiver circuit 41, a matching circuit 42 and a metal casing 43, and the radio frequency transceiver circuit 41 passes through The mating circuit 42 is electrically connected to the metal case 43, so that the metal case 43 is used as a radiator of the antenna device 400. The metal casing 43 is grounded via a grounding wire 44, and the grounding wire 44 is provided with a switch 45 for controlling its opening and closing. Wherein, the edge of the gold outer casing 43 includes an arc segment 431, and the metal casing 43 is provided with a micro slit tape 430 including an arc portion 4311, the arc of the arc portion 4311 and the metal casing 43 The segments 431 are matched, and the microslit tape 430 extends non-penetratingly from the edge of the metal casing 43 to the inside of the metal casing 43 such that the metal casings 43 on both sides of the microslit belt 430 are connected to each other. In one piece, the micro slits 4301 in the microslit strip 430 all extend along the short sides of the housing 43.

The microslit tape 430 shown in FIG. 4 includes four arcuate micro slits 4301 with a slit width of between 0.03 and 0.5 mm. Since the width of the micro slits is sufficiently small, it is not easy to attract the attention of the consumer, thereby ensuring the metal casing. The integrity of 2, and the microslit strip 430 allows electromagnetic signals within the metal housing 43 to be radiated. And the curved microslit strip 430 increases the length of the microslit strip 430 and enhances the radiation performance of the antenna device. In addition, the spacing between the adjacent two micro slits 4301 is larger than the slit width of the micro slit 4301, and a metal strip is formed between the adjacent micro slits 4301, and the material of the metal strip is the same as that of the metal shell 43. The integrity of the metal casing 43 is further ensured from the appearance. The micro slit 4301 is filled with a non-signal shielding material, so that the electromagnetic signal of the antenna device 400 can be prevented from being shielded.

It should be noted that the number of the micro slits 4301 of the microslit tape 430 may be 3 to 20, and the number of the micro slits should be determined according to specific needs, such as meeting the requirements of the appearance of the metal casing 43 and the electromagnetic signals of the antenna device 400. Radiation conditions.

As shown in FIG. 4, the RF transceiver circuit 41 is a feed of the antenna device 400, and the function of the matching circuit 42 is to perform impedance matching and balance matching between the RF transceiver circuit 41 and the metal casing 43, thereby reducing the mismatch. Return loss to ensure that the antenna device 400 can work normally. In addition, the metal casing 43 is grounded through the grounding wire 44, and the grounding wire 44 is provided with a switch 45 for controlling its on and off. In FIG. 4, when the switch 45 is closed, the metal casing 43 is grounded, and the frequency of the electromagnetic signal that the antenna device 400 can radiate changes, so that the bandwidth of the antenna device 400 can be increased.

Embodiment 5

Referring to Fig. 5, there is shown an antenna device 500 according to a fifth embodiment of the present invention. The number of microslit strips 530 is one, and Fig. 5 is changed from Fig. 4, the number of slits 5301 of the micro slit strips 530 and the slit width. The number and slit width of the micro slit 1301 in the first embodiment shown in FIG. 4 are the same as the antenna device 100 of the first embodiment shown in FIG. 4, and the micro slit tape 530 is parallel to the metal casing 53. Short side extension And through the metal casing 53, the metal casing 53 is divided into two

separate metal regions

531 and 532, as shown in FIG. 5, wherein one metal region 531 has an area larger than the other metal region 532. In the antenna device 500, the matching circuit 52 and the grounding wire 54 with the switch 55 are both electrically connected to the metal region 532, and the metal region 531 can be coupled with the metal region 532 to radiate the electromagnetic signal. The ground line 54 of the switch 55 can change the frequency of the electromagnetic radiation, thereby increasing the bandwidth of the antenna device 500. Of course, the matching circuit 52 and the ground line 54 may be electrically connected to the metal region 531, and the matching circuit 52 and the ground line 54 may also be electrically connected to the

metal regions

531 and 532, respectively. When the matching circuit is electrically connected to one of the

metal regions

531 and 532, since the metal region 531 and the metal region 532 are different in size and structure, the ground line 54 is electrically connected to different metal regions, and the antenna device 500 can transmit and receive electromagnetic signals. The frequency changes, so that the grounding line 54 can be connected to different metal regions to achieve the frequency selective effect, thereby increasing the bandwidth of the antenna device 500.

Embodiment 6

Referring to Fig. 6, there is shown an antenna apparatus 600 according to a sixth embodiment of the present invention, in which the number of microslit strips 630 is two, and Fig. 6 is changed from Fig. 4, and the number of micro slits 6301 of the micro slit strips 630 is The slit width is the same as the number and slit width of the micro slits 1301 in the first embodiment shown in FIG. 4, which divide the metal casing 63 into the first metal regions 631 at the intermediate positions and are respectively located. The second metal region 632 and the third metal region 633 at both ends of the first metal region 631, as shown in FIG. 6, the area of the first metal region 631 is larger than the second metal region 632, the area of the second metal region 632 and the third metal Area 633 is equal. In the antenna device 600, the matching circuit 62 and the ground line 64 with the switch 65 are both electrically connected to the third metal region 633, and both the first metal region 631 and the second metal region 632 may be combined with the third metal region 633. Coupling is formed to radiate the electromagnetic signal, and the ground line 64 can change the frequency of the electromagnetic radiation, thereby increasing the bandwidth of the antenna device 600. Of course, there may be other connection relationships between the matching circuit 62 and the ground line 64 and the metal region. As shown in FIG. 6, when the matching circuit 62 is electrically connected to one of the metal regions, the ground line 64 is different due to the difference in size, structure, and position of the first metal region 631, the second metal region 632, and the third metal region 633. When the metal regions are electrically connected, the frequency of the electromagnetic signals that can be transmitted and received by the antenna device 600 changes. Therefore, the grounding wires 64 can be connected to different metal regions to achieve the frequency selective effect, thereby increasing the bandwidth of the antenna device 600.

It should be noted that the micro slit 61 may also extend or partially extend along the long side of the metal shell. The specific structure depends on the requirements of the appearance and the specific parameters of the antenna device. The metal casing 63 can move the front or back cover of the terminal, and can also be a side frame of the mobile terminal.

Example 7

Referring to FIG. 7, there is shown an antenna apparatus 700 according to a seventh embodiment of the present invention. The antenna apparatus 700 includes a radio frequency transceiver circuit 701, a matching circuit 702, and a housing 703, wherein the radio frequency transceiver circuit 701 passes through the matching circuit 702 and the housing. 703 is electrically connected, the RF transceiver circuit 701 is used as a feed of the antenna device 700, and the matching circuit 702 is used for impedance matching and balance matching between the RF transceiver circuit 701 and the housing 703 to ensure the efficiency of the antenna device 700, and the RF transceiver Both the circuit 701 and the matching circuit 702 are conventionally used in the prior art, and are not described herein.

The housing 703 is an all-metal housing including a microslit strip 73 formed of a plurality of micro slits 7301. The width of the micro slit 7301 is 0.05 to 0.5 mm, which is not easy to attract the attention of the consumer in appearance, and can ensure the integrity of the metal casing. The distance between the adjacent micro slits 7301 is 0.05 to 0.5 mm, and the adjacent micro A metal strip 74 is formed between the slits 7301. The width of the metal strip 74 is 0.1 to 0.5 mm, which can further improve the integrity of the appearance of the housing 703, and facilitate the realization of the all-metal housing, and the micro-seam strip 73 itself also serves as A part of the radiation portion of the antenna device 700 can adjust the operating frequency of the antenna device 700 by adjusting the size of the micro slit 7301 of the microslit tape 73 and the distance between the adjacent micro slits 7301. It should be noted that the micro slits 7301 may be parallel to each other or may cross each other, and the specific structure may depend on the requirements of the appearance and the specific parameters of the antenna device. The housing 703 can move the front case or the back cover of the terminal or the like. The housing 703 can be grounded through a ground line including a switch, so that the bandwidth of the antenna device 700 can be further widened.

In addition, the microslit strip 73 is adjacent to the short side 7031 of the housing 703, and the micro slit strip 73 includes a first curved section 731, a straight section 732 and a second curved section 733, wherein the straight section 732 is parallel to the short side 7031, thereby The visual effect of the housing 703 may be better maintained, the first curved section 731 includes a first opening 7311, and the second curved section 732 includes a second opening 7321, and the first opening 7311 and the second opening 7321 are both disposed in the housing 703 Short side 7031. When the user holds the mobile terminal including the housing 703, the palm can be prevented from coming into contact with the micro slit tape 73 of the housing 702, and due to the arrangement of the first opening 7311 and the second opening 7321, the palm of the user does not contact the first opening. The 7311 is in contact with the second opening 7321, thereby avoiding adverse effects on the radiation performance of the slot antenna and more in line with the user's grip habit.

Further, the shape of the first curved section 731 and the second curved section 733 may be an arc shape or an ellipse Arc, fold line or other curved form.

Example eight

Referring to FIG. 8, there is shown an antenna apparatus 800 according to an eighth embodiment of the present invention, which includes a first radio frequency transceiver circuit 801, a second radio frequency transceiver circuit 802, a first matching circuit 803, a second matching circuit 804, and The housing 805, wherein the first RF transceiver circuit 801 is electrically connected to the housing 805 through the first matching circuit 802, and the second RF transceiver circuit 802 is electrically connected to the housing 805 through the second matching circuit 804. The first RF transceiver circuit 801 And the second RF transceiver circuit 802 is used as a feed of the antenna device 800, the first matching circuit 803 is used for impedance matching and balance matching between the first RF transceiver circuit 801 and the housing 805, and the second matching circuit 804 is used for Perform impedance matching and balance matching between the second RF transceiver circuit 802 and the housing 805 to ensure the efficiency of the antenna device 800. The

RF transceiver circuits

801 and 802 and the matching

circuits

803 and 804 are all conventional means in the prior art. This will not be repeated. The antenna device 800 of the present embodiment can widen the bandwidth of the antenna device 8 by the arrangement of two feed sources, and improve the radiation performance of the antenna device 800. In FIG. 8, a capacitor 806 is further disposed between the first matching circuit 803 and the grounding point, and the capacitor 806 functions to perform further impedance matching and balance matching between the first RF transceiver circuit 801 and the housing 805. It is also capable of absorbing interference signals. Of course, in other embodiments in accordance with the invention, capacitor 806 may also be omitted.

The housing 805 is an all-metal housing including a first microslit strip 851 formed by a plurality of first micro slits 8511 and a second micro slit strip 851, the second micro slit strip 852 being composed of a plurality of strips The second micro slit 8521 is formed. The width of the first micro slit 8511 and the second micro slit 8521 is 0.05 to 0.5 mm, which is not easy to attract the attention of the consumer in appearance, and can ensure the integrity of the metal casing, the adjacent first micro slit 8511 and the adjacent ones. The distance between the second micro slits 8521 is 0.05 to 0.5 mm, and a metal strip 86 is formed between the adjacent first micro slits 8511 and the adjacent second micro slits 8521. The width of the metal strips 86 is 0.1 to 0.5. The mm can further improve the integrity of the appearance of the housing 805, facilitating the realization of the all-metal housing, and the first micro-slit strip 851 and the second micro-slit strip 852 themselves can also be adjusted as part of the radiating portion of the antenna device 800. The size of the first micro slit 8511 of the first microslit tape 851 and the second micro slit 8521 of the second microslit tape 852 and the distance between the adjacent first micro slit 8511 and the adjacent second micro slit 8521. The operating frequency of the antenna device 800 can be adjusted. It should be noted that the micro-stitches 8511 and 8521 may be parallel to each other or may cross each other, and the specific structure may depend on the requirements of the appearance and the specific parameters of the antenna device. The housing 805 can move the front case or the back cover of the terminal or the like. The housing 805 can be included by The grounding wire of the switch is grounded, so that the bandwidth of the antenna device 800 can be further widened.

The first microslit tape 851 and the second microslit tape 852 are both adjacent to the short side 850 of the housing 805. The first microslit tape 851 includes a first first straight segment 8501 and a third curved segment 8502. The second microslit tape 852 The second curved segment 8503 and the fourth curved segment 8504 are connected, the first straight segment 8501 and the second straight segment 8503 are arranged in parallel, the first curved segment 8502 includes a third opening 8505, and the second curved segment 8504 includes a fourth opening 8506. The third opening 8505 and the fourth opening 8506 are both disposed on the short side 850 of the housing 805. When the user holds the mobile terminal including the housing 805, the palm can be prevented from coming into contact with the

micro slit tapes

851, 852 of the housing 805, and due to the arrangement of the third opening 8505 and the fourth opening 8506, the user's palm usually does not The third opening 8505 is in contact with the fourth opening 8506, thereby avoiding adversely affecting the radiation performance of the slot antenna of the housing 805, and more in line with the user's grip habit.

Further, the shape of the third curved section 8502 and the fourth curved section 8504 may be a circular arc shape, an elliptical arc shape, a polygonal line shape or other curved forms.

The present invention provides

antenna devices

100, 200, 300, 400, 500, 600, 700, and 800 that can be utilized in various mobile terminals. For example, a mobile terminal can include a radio access network RAN and one or more cores. A user device that communicates with the network. The user device may be a mobile phone ("cellular" phone), a computer with a mobile terminal, etc., for example, the user device may also be portable, pocket-sized, handheld, computer-integrated, or in-vehicle mobile. Devices that exchange voice and/or data with a wireless access network. For another example, the mobile terminal may include a mobile phone, a tablet computer, a personal digital assistant PDA, a sales terminal POS, or an onboard computer.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, and those skilled in the art can understand all or part of the process of implementing the above embodiments, and according to the claims of the present invention. The equivalent change is still within the scope of the invention.

Claims

A metal casing, characterized in that the metal casing comprises a long side and a short side connected to the long side, the metal casing is provided with a micro slit belt, and the micro slit belt comprises a plurality of micro slits A metal strip is formed between the adjacent micro slits, and the micro slit strip is disposed adjacent to a short side of the metal shell to divide the metal shell into at least one metal region.
A metal casing according to claim 1, wherein said microslit belt is linear.
A metal casing according to claim 1, wherein an edge of said metal casing comprises an arcuate section, and said microslit zone comprises an arcuate portion, said arcuate portion and said metal casing The curved segments match.
A metal case according to claim 2, wherein an opening of said micro slit tape is provided on said short side of said metal case.
A metal casing according to any one of claims 1 to 4, wherein the number of the microslit strips is one and extends non-penetratingly from the edge of the metal casing to the metal casing. Internally, such that the metal casings on both sides of the microslit belt are connected to each other as a whole.
The metal casing according to any one of claims 1 to 4, wherein the number of the micro slit tapes is one, and the metal casing is divided into two separate metal regions.
The metal casing according to any one of claims 1 to 4, wherein the number of the micro slit tapes is two, and the metal casing is divided into a first metal region at an intermediate position and respectively a second metal region and a third metal region at both ends of the first metal region.
A metal casing according to any one of claims 1 to 7, wherein a spacing between adjacent two of said micro slits is greater than a slit width of said micro slit.
The metal casing according to claim 4, wherein said microslit belt comprises a first curved section, a straight section and a second curved section connected in series, said first curved section comprising a first opening, said The second curved section includes a second opening, and the first opening and the second opening are both disposed on the short side of the metal casing.
A metal casing according to claim 9, wherein said first curved section and said second curved section have a circular arc shape, an elliptical arc shape or a polygonal line shape.
The metal casing of claim 10 wherein said straight line segments are parallel to Said short side.
A metal casing according to claim 11, wherein said microslit belt comprises a first microslit belt and a second microslit belt, said first microslit belt comprising connected first straight segments and third a curved segment, the second microslit band includes a connected second straight segment and a fourth curved segment, the third curved segment includes a third opening, the fourth curved segment includes a fourth opening, the third opening And the fourth opening is disposed on the short side of the metal casing; the first straight segment and the second straight segment extend in the same direction.
The metal casing according to claim 12, wherein the shape of the third curved section and the fourth curved section is a circular arc shape, an elliptical arc shape or a polygonal line shape.
The metal casing according to any one of claims 1 to 13, wherein the microslit tape comprises 3 to 20 micro slits.
The metal casing according to claim 14, wherein each of said slits has a slit width of from 0.03 to 0.4 mm.
An antenna device, comprising: a radio frequency transceiver circuit, a matching circuit, and the metal casing according to any one of claims 1 to 15, wherein the radio frequency transceiver circuit is electrically connected to the metal casing through the matching circuit connection.
The antenna device according to claim 16, wherein said metal case is grounded via said ground line, and said ground line is provided with a switch for controlling said ground line to be turned on and off.
The antenna device according to claim 16, wherein the number of the radio frequency transceiver circuit and the matching circuit is one, and the radio frequency transceiver circuit is electrically connected to the metal region through the matching circuit.
The antenna device according to claim 16, wherein the radio frequency transceiver circuit comprises a first radio frequency transceiver circuit and a second radio frequency transceiver circuit, the matching circuit comprising a first matching circuit and a second matching circuit, An RF transceiver circuit is electrically connected to the metal region through the first matching circuit, and the second RF transceiver circuit is electrically connected to the metal region through the second matching circuit.
A mobile terminal, comprising the antenna device according to any one of claims 16-19.