TWI639274B - Housing, antenna device, and mobile terminal - Google Patents

Abstract

The invention provides a housing, an antenna device and a mobile terminal, the housing is used for a mobile terminal, the housing comprises a metal outer casing, and the metal outer casing is provided with at least one micro slit tape, and the micro slit tape is composed of a plurality of strips The micro-seam is formed, and the metal casing functions as an antenna radiator for electrically connecting the radio frequency transceiver circuit and radiating the electromagnetic signal. In the invention, the micro-seam tape is arranged on the metal casing, which is not easy to attract the attention of the consumer, can ensure the integrity of the metal casing, and the metal part of the metal casing is used as the radiator of the antenna device, so that the casing directly radiates the antenna electromagnetic Signal to prevent the antenna signal from being disturbed.

Description

Housing, antenna device and mobile terminal

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

In the market, all-metal casings are becoming more and more popular among consumers. However, considering the limitations of antenna devices, metal and non-metal casings are usually used, and antenna devices are located in non-metal regions to prevent signal shielding of antenna devices. .

The outer casing of the existing mobile terminal mostly adopts a three-stage structure, that is, the metal area in the middle of the outer casing is separated from the metal area at both ends of the outer casing by an isolating belt 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.

The present invention provides a housing, an antenna device, and a mobile terminal, which can ensure the overall appearance of the mobile terminal and prevent the signal of the antenna device from being interfered.

A casing for a mobile terminal, wherein the casing comprises a metal casing, the metal casing being provided with at least one microslit belt, the microslit belt being formed by a plurality of micro slits, the metal casing radiating as an antenna Body for electrically connecting the RF transceiver circuit and radiating electromagnetic signals.

An antenna device, wherein the antenna device comprises a radio frequency transceiver circuit, a matching circuit, and the above-described housing, and the radio frequency transceiver circuit is electrically connected to the metal casing through the matching circuit.

A mobile terminal, wherein the mobile terminal comprises the antenna device described above.

In the invention, the micro-seam tape is arranged on the metal casing, which is not easy to attract the attention of the consumer, can ensure the integrity of the metal casing, and the metal part of the metal casing is used as the radiator of the antenna device, so that the casing directly radiates the antenna electromagnetic Signal to prevent the antenna signal from being disturbed.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only Some embodiments of the invention, as well as those of ordinary skill in the art, may also obtain other figures from these drawings without the inventive effort.

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 departing from the inventive scope are the scope of the present invention.

The antenna device provided by the present invention can be applied to various mobile terminals. For example, the mobile terminal can include a user equipment that communicates with one or more core networks via the radio access network RAN, and the user equipment can be a mobile phone (" Cellular "telephone", computer with mobile terminal, etc., for example, the user device can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges voice and/or data with the 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 a car computer.

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, and the radio frequency transceiver circuit 11 is electrically connected to the metal casing 13 through the matching circuit 12. The metal casing 13 is connected 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 microslit belt 130 extending non-penetratingly from the edge of the metal casing 13 to the inside of the metal casing 13 such that the metal casings 13 on both sides of the microslit belt 130 are connected to each other. Integral, and the micro slits 1301 in the microslit tape 130 all extend parallel to the short sides of the outer casing 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 13. And the microslit tape 130 allows electromagnetic signals within the metal casing 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 metal strips are formed between the adjacent micro slits 1301. The material of the metal strips is the same as that of the metal shell 13, so that the appearance The integrity of the metal casing 13 is further ensured. 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 meeting the requirements of the appearance of the metal casing 13 and the radiation of the electromagnetic signal of the antenna device 100. condition.

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 be normally operated. jobs. 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.

Referring to Fig. 2, there is shown an antenna device 200 according to a second embodiment of the present invention, comprising a radio frequency transceiver circuit 21; the number of microslit strips 230 is one, the number of slits 2301 of the microslit strip 230 and the slit width are shown in Fig. 1. The number of slits 1301 in the first embodiment shown is the same as the slit width. Unlike the antenna device 100 of the first embodiment shown in FIG. 1, the slit tape 230 extends parallel to the short side of the metal casing 23. And through the metal casing 23, the metal casing 23 is divided 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 increasing 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.

Referring to Fig. 3, there is shown an antenna apparatus 300 according to a third embodiment of the present invention, including a radio frequency transceiver circuit 31 in which the number of microslit strips 330 is two, and the number and slit width of the micro slits 3301 of the micro slit strips 330 are The number of slits 1301 in the first embodiment shown in FIG. 1 is the same as the slit width, and the two microslit strips 330 divide the metal shell 33 into a first metal region 331 at an intermediate position and respectively located in the first metal region. As shown in FIG. 3, the second metal region 332 and the third metal region 333 at both ends of the 331 are larger than the second metal region 332, and the second metal region 332 has the same area as the third metal region 333. 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 structure 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 slits 1301, 2301 or 3301 of FIGS. 1 to 3 may intersect each other. The micro slits 1301, 2301, and 3301 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 13, 23, 33 can move the front or back cover of the terminal, and can also be the side frame of the mobile terminal.

Further, preferably, the radio frequency transceiver circuit 31 and the matching circuit 32 are both disposed inside the mobile terminal. The mobile terminal refers to a computer device that can be used in mobile, including but not limited to a mobile phone, a notebook computer, a tablet computer, a POS machine, a car computer, a camera, and the like.

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. The radio frequency transceiver circuit 41 is electrically connected to the metal casing 43 through the matching circuit 42. The metal casing 43 is connected as a radiator of the antenna device 400. And the metal casing 43 is grounded through a grounding wire 44, and the grounding wire 44 is provided with a switch 45 for controlling its on and off. Wherein, the edge of the metal casing 43 includes an arcuate section, and the metal casing 43 is provided with a microslit belt 430 including an arc portion that matches the arc segment of the metal casing 43, The microslit tape 430 extends non-penetratingly from the edge of the metal casing 43 to the inside of the metal casing 43, so that the metal casings 43 on both sides of the microslit belt 430 are integrally connected to each other, and the microslit belt 430 is The micro slits 4301 extend along the short sides of the metal casing 43.

The microslit tape 430 shown in FIG. 4 includes four arcuate micro slits 4301 having a slit width of between 0.03 and 0.5 mm. Since the width of the micro slits is sufficiently small to be easily noticed by the consumer, the metal casing 43 can be secured. The integrity of the microslit strip 430 allows electromagnetic signals within the metal enclosure 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 structure. 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, thus The integrity of the metal casing 43 is further ensured in 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 radiation of the electromagnetic signal of the antenna device 400. condition.

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 backlash caused by the mismatch. Wave loss to ensure that the antenna device 400 can work normally. Further, 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.

Referring to Fig. 5, there is shown an antenna apparatus 500 according to a fifth embodiment of the present invention, including a radio frequency transceiver circuit 51 in which the number of microslit strips 530 is one, the number of slits 5301 of the micro slit strips 530, and the slit width and the figure. The number of slits 4301 in the fourth embodiment shown in FIG. 4 is the same as the slit width. Unlike the antenna device 400 of the fourth embodiment shown in FIG. 4, the micro slit tape 530 is parallel to the short side of the metal casing 53. The metal casing 53 is extended and penetrated to divide the metal casing 53 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 structure 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.

Referring to Fig. 6, there is shown an antenna apparatus 600 according to a sixth embodiment of the present invention, including a radio frequency transceiver circuit 61 in which the number of micro slit tapes 630 is two, and the number and slit width of the micro slits 6301 of the micro slit tape 630 are The number of slits 4301 in the fourth embodiment shown in FIG. 4 is the same as the slit width, and the two microslit strips 630 divide the metal shell 63 into a first metal region 631 at an intermediate position and respectively located in the first metal region. The second metal region 632 and the third metal region 633 at both ends of the 631, as shown in FIG. 6, the area of the first metal region 631 is larger than the second metal region 632, and the area of the second metal region 632 is equal to the third metal region 633. 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 electromagnetic signals, and ground line 64 can change the frequency of the electromagnetic radiation, thereby increasing the bandwidth of antenna structure 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 slits 4301, 5301 or 6301 can cross each other. The micro slits 4301, 5301 or 6301 may also extend or partially extend along the long sides 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 can move the front or back cover of the terminal, and can also be the side frame of the mobile terminal.

Further, preferably, the radio frequency transceiver circuit and the matching circuit are both disposed inside the mobile terminal. The mobile terminal refers to a computer device that can be used in mobile, including but not limited to a mobile phone, a notebook computer, a tablet computer, a POS machine, a car computer, a camera, and the like.

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 overall appearance of the housing 703, and is advantageous for realizing an all-metal outer casing, and the micro-seam strip 73 itself also serves as an antenna. A portion of the radiation portion of the device 700 can adjust the operating frequency of the antenna device 700 by adjusting the size of the micro slit 7301 of the microslit strip 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 733 includes a second opening 7331, and the first opening 7311 and the second opening 7331 are both disposed at 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 703, and due to the arrangement of the first opening 7311 and the second opening 7331, the user's palm does not contact the first opening. The 7311 is in contact with the second opening 7331, 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, an elliptical arc shape, a polygonal line shape or other curved forms.

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 803, 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 Impedance matching and balance matching are performed 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 conventional devices of the prior art. Do not repeat them. The antenna device 800 of the present embodiment can widen the bandwidth of the antenna device 800 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 first micro slit 8511 and the second micro slit 8521 have a width of 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 one. 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. Mm, the overall appearance of the housing 805 can be further improved, and the full metal outer casing can be realized, and the first micro slit tape 851 and the second micro slit tape 852 itself can also be used as a part of the radiation portion of the antenna device 800 by adjusting The size of the first micro slit 8511 of the micro slit tape 851 and the second micro slit 8521 of the second micro slit tape 852 and the distance between the adjacent first micro slit 8511 and the adjacent second micro slit 8521 may be The operating frequency of the antenna device 800 is 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 grounded through a ground line that includes a switch, thereby further widening the bandwidth of the antenna device 800.

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 includes The connected second straight line segment 8503 and the fourth curved portion 8504, the first straight line segment 8501 and the second straight line segment 8503 are disposed in parallel, the first curved segment 8502 includes a third opening 8505, and the second curved segment 8504 includes a fourth opening 8506, The three openings 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 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 apply according to the present invention. Equivalent changes made by the scope of patents are still covered by the invention.

100‧‧‧Antenna device

11‧‧‧RF transceiver circuit

12‧‧‧Matching circuit

13‧‧‧Metal casing

14‧‧‧ Grounding wire

15‧‧‧ switch

130‧‧‧Micro-slit tape

1301‧‧‧Micro-seam

200‧‧‧Antenna device

21‧‧‧RF Transceiver Circuit

22‧‧‧Matching circuit

24‧‧‧ Grounding wire

25‧‧‧ switch

230‧‧‧Microslit tape

2301‧‧‧Micro-seam

23‧‧‧Metal casing

231, 232‧‧‧Metal area

300‧‧‧Antenna device

31‧‧‧RF Transceiver Circuit

32‧‧‧Matching circuit

330‧‧‧Microslit tape

3301‧‧‧Micro-seam

33‧‧‧Metal casing

331‧‧‧First metal area

332‧‧‧Second metal area

333‧‧‧ Third metal area

34‧‧‧Grounding wire

35‧‧‧ switch

400‧‧‧Antenna device

41‧‧‧RF Transceiver Circuit

42‧‧‧Matching circuit

43‧‧‧Metal casing

44‧‧‧ Grounding wire

45‧‧‧Switch

430‧‧‧Micro-slit tape

4301‧‧‧Micro-seam

500‧‧‧Antenna device

51‧‧‧RF Transceiver Circuit

52‧‧‧Matching circuit

530‧‧‧Micro-slit tape

5301‧‧‧Micro-seam

53‧‧‧Metal casing

531, 532‧‧‧Metal area

54‧‧‧Grounding wire

55‧‧‧Switch

600‧‧‧Antenna device

61‧‧‧RF Transceiver Circuit

62‧‧‧Matching circuit

630‧‧‧Micro-slit tape

6301‧‧‧Micro-seam

63‧‧‧Metal casing

631‧‧‧First metal area

632‧‧‧Second metal area

633‧‧‧ Third metal area

64‧‧‧ Grounding wire

65‧‧‧ switch

700‧‧‧Antenna device

701‧‧‧RF transceiver circuit

702‧‧‧Matching circuit

73‧‧‧Micro-slit tape

7301‧‧‧Micro-seam

703‧‧‧shell

731‧‧‧First curve segment

732‧‧‧ Straight line

733‧‧‧second curve segment

74‧‧‧Metal strip

75‧‧‧ switch

7031‧‧‧ Short side

7311‧‧‧first opening

7331‧‧‧ second opening

800‧‧‧Antenna device

801‧‧‧First RF Transceiver Circuit

802‧‧‧second RF transceiver circuit

803‧‧‧First matching circuit

804‧‧‧Second matching circuit

805‧‧‧shell

806‧‧‧ Capacitance

851‧‧‧First micro slit tape

852‧‧‧Second micro slit tape

8511‧‧‧First micro slit

8521‧‧‧Second micro slit

850‧‧‧ Short side

8501‧‧‧First straight line segment

8502‧‧‧ third curve segment

8503‧‧‧Second straight line segment

8504‧‧‧fourth curve segment

8505‧‧‧ third opening

8506‧‧‧fourth opening

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;

Figure 3 is a schematic illustration of an antenna device in accordance with 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 according to 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.

Claims (15)

A housing for a mobile terminal, comprising: a metal casing, the metal casing being provided with at least one microslit tape, the microslit tape being formed by a plurality of micro slits, the microslit tape being An edge of the metal casing extends through the other edge of the metal casing to separate the metal casing from two mutually independent metal regions, the metal casing serving as an antenna radiator for electrically connecting an RF transceiver circuit and Radiating an electromagnetic signal. The casing of claim 1, wherein the microslit tape extends non-penetratingly from an edge of the metal casing to an interior of the metal casing such that the sides of the microslit belt The metal casings are connected to each other in one piece. The casing of claim 1, wherein the microslit belt comprises a curved section, and the curved section has a circular arc shape, an elliptical arc shape or a polygonal line shape. The casing of claim 3, wherein the metal casing comprises a curved edge, the curved segment matching the curved edge. The casing of claim 3, wherein the microslit tape further comprises a straight segment connected to the curved segment, the casing having a short side adjacent the microslit tape, The curved segment includes an opening disposed on the short side, the straight line segment being parallel to the short side. The casing according to any one of claims 1 to 5, wherein the width of the micro slit is 0.03 mm to 0.5 mm, and the width between adjacent micro slits is 0.05 mm to 0.5 mm. . The casing according to any one of claims 1 to 5, wherein a spacing between two adjacent ones of the micro slits is greater than a slit width of the micro slits. The casing according to any one of claims 1 to 5, wherein the micro slit is filled with a non-signal shielding material. The casing according to any one of claims 1 to 5, wherein a metal strip is formed between the adjacent micro slits, and the material of the metal strip is the same as the material of the metal casing. An antenna device, comprising: a radio frequency transceiver circuit, a matching circuit, and a housing according to any one of claims 1 to 9, wherein the radio frequency transceiver circuit passes the matching circuit and the metal The housing is electrically connected. The antenna device according to claim 10, wherein the antenna device further includes a grounding wire and a switch disposed on the grounding wire, the metal casing is grounded through the grounding wire, and the switch is controlled The ground wire is turned on and off. The antenna device according to claim 11, wherein the number of the micro slit tapes is one, and the metal shell is divided into two separate metal regions; the two metal regions are respectively matched with the The circuit and the ground line are electrically connected, or one of the metal regions is electrically connected to the matching circuit and the ground line. The antenna device according to claim 11, wherein the number of the micro slit tapes is two, and the two micro slit tapes divide the metal outer casing into three mutually independent metal regions; The metal regions are electrically connected to the matching circuit and the ground line, respectively, or one of the metal regions is electrically connected to the matching circuit and the ground line. The antenna device according to any one of claims 10 to 13, wherein the number of the radio frequency transceiver circuits and the number of the matching circuits are two, and the two radio frequency transceiver circuits pass through two The matching circuits are electrically connected to different positions of the metal casing, respectively. A mobile terminal, comprising the antenna device according to any one of claims 10 to 14.