CN117097825A

CN117097825A - mobile terminal

Info

Publication number: CN117097825A
Application number: CN202210520429.8A
Authority: CN
Inventors: 张永亮
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2022-05-13
Filing date: 2022-05-13
Publication date: 2023-11-21
Also published as: WO2023216718A1

Abstract

The application discloses a mobile terminal, which comprises a functional structure, wherein the functional structure is arranged on the side surface of the mobile terminal, and the mobile terminal further comprises: the millimeter wave antenna module is arranged in the functional structure and comprises a millimeter wave antenna array panel, a modem and a power supply integrated circuit chip, wherein the area corresponding to the millimeter wave antenna array panel is a clearance area, and signals of the millimeter wave antenna module are transmitted to a main circuit board of the mobile terminal. In this way, the application can realize wireless communication of the mobile terminal under millimeter wave under the condition that the current structure layout of the side surface of the mobile terminal is not changed as much as possible.

Description

Mobile terminal

Technical Field

The application relates to the technical field of mobile terminals.

Background

When the existing mobile terminal with the metal middle frame is used for communication application by using the millimeter wave antenna module, one condition is that local holes are formed in the metal middle frame, non-shielding materials are adopted for filling, and the antenna array signal receiving and transmitting of the millimeter wave antenna module is ensured not to be shielded. In another case, some laboratories study that metal middle frames are partially provided with micropores to expose millimeter wave antenna array elements, and intervals among array elements are still intervals among metal middle frames. However, the first case may decrease the strength of the metal center, and the second case has not been commercially available.

Disclosure of Invention

Based on the above, the embodiment of the application provides a mobile terminal, which can realize wireless communication of the mobile terminal under millimeter waves under the condition that the current structure layout of the side surface of the mobile terminal is not changed as much as possible.

In a first aspect, the present application provides a mobile terminal, including a functional structure, where the functional structure is disposed on a side of the mobile terminal, and the mobile terminal further includes: the millimeter wave antenna module is arranged in the functional structure and comprises a millimeter wave antenna array panel, a modem and a power supply integrated circuit chip, wherein the area corresponding to the millimeter wave antenna array panel is a clearance area, and signals of the millimeter wave antenna module are transmitted to a main circuit board of the mobile terminal.

The mobile terminal of the embodiment of the application has the functional structure which is currently configured by the mobile terminal, the functional structure is multiplexed, and the millimeter wave antenna module is arranged in the functional structure, so that the situation that an area is newly arranged on the side surface of the mobile terminal to realize wireless communication of the mobile terminal under millimeter waves is avoided, and the wireless communication of the mobile terminal under millimeter waves is realized under the condition that the current structural layout of the side surface of the mobile terminal is not changed as much as possible; the corresponding area of the millimeter wave antenna array panel is a clearance area, so that the wireless signal can be ensured not to be shielded; the signals of the millimeter wave antenna module are transmitted to the main circuit board of the mobile terminal, and the signals can be processed in time by utilizing the main circuit board.

Drawings

FIG. 1 is a schematic diagram of a mobile terminal according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of an embodiment of a millimeter wave antenna module in a mobile terminal according to the present application;

fig. 3 is a schematic structural view of a second embodiment of the mobile terminal of the present application;

fig. 4 is a schematic structural view of a third embodiment of the mobile terminal of the present application;

fig. 5 is a schematic diagram of an embodiment of a millimeter wave antenna module compatible with a volume key in a mobile terminal according to the present application;

fig. 6 is a schematic diagram of an embodiment of a millimeter wave antenna module compatible with a power-on key in a mobile terminal according to the present application;

fig. 7 is a schematic diagram of another embodiment of a millimeter wave antenna module compatible with a power-on key in a mobile terminal according to the present application;

fig. 8 is a schematic longitudinal section of an embodiment of a millimeter wave antenna module compatible with a volume key in a mobile terminal of the present application;

fig. 9 is a schematic longitudinal cross-sectional view of an embodiment of a millimeter wave antenna module compatible with a power-on key in a mobile terminal according to the present application;

fig. 10 is a schematic diagram of an embodiment of a millimeter wave antenna module compatible with a cradle in a mobile terminal according to the present application;

FIG. 11 is a schematic diagram of an embodiment of a card holder side magnetic/probe connector disconnection and ejector pin operation in a card holder push-push structure in a mobile terminal according to the present application;

Fig. 12 is a schematic diagram of another embodiment of a millimeter wave antenna module compatible with a cradle in a mobile terminal according to the present application;

fig. 13 is a schematic diagram of a millimeter-wave antenna module compatible with another embodiment of the mobile terminal of the present application in a cradle;

fig. 14 is a schematic diagram of a millimeter wave antenna module and SIM card signal switching in a mobile terminal according to the present application;

FIG. 15 is a schematic diagram of a wideband analog switching device circuit switch in a mobile terminal of the present application;

fig. 16 is a schematic diagram of a general analog switching device circuit switch in a mobile terminal of the present application.

Main elements and symbol description:

10. a USB port; 20. a speaker; 201. a speaker sound outlet; 30. 4G LTE antenna 1& sub 6GHz frequency band 2 antenna; 40. 4G LTE antenna 2& sub 6GHz frequency band 2 antenna; 50. sub 6GHz band 1 antenna; 60. 4G LTE main set antenna; 70. 4G LTE diversity antennas; 80. GPS & BT & WiFi antennas;

1. a millimeter wave antenna module; 11. a millimeter wave antenna array panel; 12. an integrated circuit chip of the modem & power supply; 13. a first board-to-board connector; 14. a signal line or a signal cable; 15. refining the impedance PCB;

2. a volume key; 21. a key body of the volume key; 211. the outer layer of the key main body of the volume key is a non-shielding material area; 212. the outer layer of the key main body of the volume key shields the quality area; 22. a buckling cantilever of the volume key; 23. elastic insulating block of volume key; 24. FPC corresponding to the volume key; 241. a key membrane switch on the FPC corresponding to the volume key; 25. FPC metal lining board corresponding to volume key; a1, connecting FPC corresponding to the volume key to a main circuit board;

3. A start key; 31. a key body of a start key; 311. a top key body of the start key; 311a, a partial shielding material area of a top key body of the start key; 311b, a local non-shielding material area of a top key body of the start key; 311c, an integral non-shielding material area of a top key body of the start key; 312. a bottom key body of the start key; 32. a buckle cantilever of the starting key; 33. an elastic insulating block of the start key; 34. FPC corresponding to the start key; 341. a key membrane switch on the FPC corresponding to the start key; 35. FPC metal lining board corresponding to start key; a2, connecting FPC corresponding to the start key to the main circuit board;

4. a clamping support; 41. the handle end of the clamping support; 42. a clamping notch; 43. a top pinhole;

5. a clamping seat; 51. a card placement area or a second card placement area; 52. push-push structure area; 53. a millimeter wave signal wiring impedance control region; 54. a millimeter wave signal distribution region;

6. a metal middle frame; 6a, a metal middle frame (screen side); 6b, a metal middle frame (battery case side); 61. a metal middle frame groove; 62. a metal middle frame interlayer; 63. a local non-shielding material area of the metal middle frame; 64. a through hole of the metal middle frame;

7. A magnetic attraction/probe type connector; 7a, magnetic attraction/probe type connector at the card support side; 7b, magnetic attraction/probe type connector of the main circuit board side;

81. a thimble; 82. a spring; 83. self-locking channels; 84. the transient residence position of the clip; 85. a transient stroke of the clamping needle;

9. a main circuit board; 91. a magnetic ring; 92. the adapter connector of the main circuit board.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It is also to be understood that the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

When the existing mobile terminal with the metal middle frame is used for communication application by using the millimeter wave antenna module, one condition is that local holes are formed in the metal middle frame, non-shielding materials are adopted for filling, and the antenna array signal receiving and transmitting of the millimeter wave antenna module is ensured not to be shielded. In another case, some laboratories study that metal middle frames are partially provided with micropores to expose millimeter wave antenna array elements, and intervals among the array elements are still intervals among the metal middle frames. However, the first case may decrease the strength of the metal center, and the second case has not been commercially available.

The embodiment of the application is based on the existing mobile terminal, and the millimeter wave antenna module is reused in the existing functional structure on the side surface of the mobile terminal, so that the wireless communication of the mobile terminal under millimeter waves can be realized, and the current structural layout of the side surface of the mobile terminal is not changed as much as possible.

The mobile terminal according to the embodiment of the present application is described in detail below.

Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of an embodiment of a mobile terminal according to the present application, and the mobile terminal according to the embodiment of the present application includes, but is not limited to: cell phones, tablet computers, customer premise equipment (CPE, customer Premise Equipment), smart home, etc.

The mobile terminal of the embodiment of the application comprises a functional structure, wherein the functional structure is arranged on the side surface of the mobile terminal, and the functional structure is the functional structure existing in the mobile terminal at present. The functional structure includes, but is not limited to: side keys, a card holder, speaker outlet 201, a side retractable camera, etc., including but not limited to: volume key 2, power on key 3, etc.

The side of the mobile terminal also comprises other structures, such as a USB port 10, wherein the USB port 10 is used for charging and data connection, and a normally open state is required to be kept; the speaker 20 is placed in the speaker sound outlet hole 201 for playing audio; in the embodiment of the present application, the speaker 20 may not be placed inside the speaker outlet hole 201 for multiplexing.

The mobile terminal further includes: a millimeter wave antenna module 1. The millimeter wave antenna module 1 is disposed in the functional structure, referring to fig. 2, the millimeter wave antenna module 1 includes a millimeter wave antenna array panel 11, an integrated circuit chip 12 (IC, integrated Circuit) of a modem and a power supply, a region corresponding to the millimeter wave antenna array panel 11 is a headroom region in the functional structure, and a signal of the millimeter wave antenna module 1 is transmitted to a main circuit board of the mobile terminal.

The millimeter wave antenna module 1 is applied to a mobile terminal, and is usually AiM (Antenna in Module, i.e. an antenna array and a radio frequency chip form a module), where the antenna array may be 2 x 2mimo (multi-input multi-output, multi-antenna transmission and multi-antenna reception), and outputs an intermediate frequency signal through the radio frequency chip. Millimeter wave antennas are millimeter-sized (about 2.5 mm) and have a relatively wide frequency band. Meanwhile, the millimeter wave antenna array is a dot matrix of interaction of a vertical antenna and a horizontal antenna, and corresponds to signal receiving and transmitting in two vertical and horizontal polarization directions, a phased array system of antenna units with a 16-times relation can be adopted, the antenna units do beam forming, and the concentrated radio frequency signals are controlled to face one direction through software. The millimeter wave antenna array is further modified into a laser direct structuring (LDS, laser Direct Structuring) substrate by adopting liquid crystal polymer (LCP, liquid Crystal Polymer) and polyphenylene sulfide (PPS, poly-phenylene sulfide) materials in the process. The modem is capable of converting a digital signal to an analog signal (modulation) and vice versa (demodulation). The power supply supplies power to the millimeter wave antenna array panel and the modem.

In an embodiment, the millimeter wave antenna module 1 further comprises a first board-to-board connector 13. As shown in fig. 2, the millimeter wave antenna module 1 is placed sideways and can be divided into three parts of a millimeter wave antenna array panel 11, a modem & power IC 12, and a first board-to-board connector 13. The millimeter wave antenna array panel 11, the modem & power IC 12, and the first board-to-board connector 13 may be disposed on a fine impedance PCB board 15, as shown in fig. 6-7, 10, 12-13. In the downstream direction, the millimeter wave high frequency signal of the millimeter wave antenna array panel 11 is demodulated to an intermediate frequency by a modem and then sent out by a first board-to-board connector 13 (usually placed in a direction opposite to the millimeter wave antenna array panel 11). The upstream direction and vice versa.

When the millimeter wave antenna module 1 is arranged in the functional structure, the antenna surface and the mobile terminal screen are vertical and can not be shielded by metal, so that the area corresponding to the millimeter wave antenna array panel is a clearance area (the shielding distance is not less than 1.5mm of the outer edge of the millimeter wave antenna array), and the area corresponding to the millimeter wave antenna array panel can be arranged as a non-shielding material area in the functional structure. The single millimeter wave antenna module 1 has fast propagation attenuation in the air because the frequency of millimeter wave electromagnetic waves is very high, and the signal is easy to be disturbed, and the communication quality is ensured by arranging the working modules in different positions in an incremental way to switch according to the signal intensity. Generally, 2-4 millimeter wave antenna modules 1 are regularly distributed at different positions of the mobile terminal, so that an ideal use effect can be achieved. Thus, a plurality of millimeter wave antenna modules 1 can multiplex a plurality of different functional structures.

For example: the volume key 2 and the start key 3 in fig. 1 are separately placed on the left side and the right side of the mobile terminal, the notch of the SIM card is placed on the top (the bottom can be also, but the effect of hand holding is relatively larger) of the mobile terminal, and at this time, the three millimeter wave antenna modules 1 are respectively placed inside the volume key 2, the start key 3 and the handle end 41 of the SIM card holder, so that different orientations of the three millimeter wave antenna modules 1 can be realized and relatively long distances can be maintained, and further, the application optimization of the millimeter wave antenna modules 1 in the mobile terminal can be realized. Meanwhile, if one to two millimeter wave antenna modules 1 are not used or only used, the mobile terminal is correspondingly replaced by a solid volume key, a start key or a SIM card holder before leaving the factory. This allows for a very flexible millimeter wave antenna configuration.

Referring to fig. 1, 3 and 4, a 4G LTE antenna 1& Sub 6GHz band 2 antenna 30, a 4G LTE antenna 2& Sub 6GHz band 2 antenna 40, a Sub 6GHz band 1 antenna 50, a 4G LTE main set antenna 60, a 4G LTE diversity antenna 70, a GPS & BT & WiFi antenna 80 may also be disposed at corresponding positions on the side of the mobile terminal.

The current global 5G scheme is divided into millimeter wave and Sub-6GHz. Millimeter wave (mmWave) may refer to electromagnetic waves having a wavelength between 1-10mm, which are shorter in wavelength and corresponding to frequencies between 30-300GHz, and may be faster in transmitting signals and have a larger storage capacity. Sub 6GHz may refer to electromagnetic waves having frequencies below 6GHz, which are much lower in frequency than millimeter waves, and are inferior to millimeter waves in propagation speed and bandwidth capacity.

The mobile terminal of the embodiment of the application has the functional structure which is currently configured by the mobile terminal, the functional structure is multiplexed, and the millimeter wave antenna module is arranged in the functional structure, so that the situation that an area is newly arranged on the side surface of the mobile terminal to realize wireless communication of the mobile terminal under millimeter waves is avoided, and the wireless communication of the mobile terminal under millimeter waves is realized under the condition that the current structural layout of the side surface of the mobile terminal is not changed as much as possible; the area corresponding to the millimeter wave antenna array panel is set as a non-shielding material area in the functional structure, so that the wireless signal can be ensured not to be shielded; the signals of the millimeter wave antenna module are transmitted to the main circuit board of the mobile terminal, and the signals can be processed in time by utilizing the main circuit board.

Referring to fig. 3 in combination, in an embodiment, the functional structure includes a speaker sound outlet 201, the millimeter wave antenna module 1 is placed inside the speaker sound outlet 201, and the position of the millimeter wave antenna array panel is opposite to the position of the non-shielding window of the speaker sound outlet 201, and after the millimeter wave antenna module 1 is placed inside the speaker sound outlet 201, the sound production of the speaker 20 is not affected.

The speaker port 201 of the present embodiment is actually a camouflage speaker port 201 because the speaker 20 is not placed inside the speaker port 201. If the mobile terminal is configured with 4 millimeter wave antenna modules, one of the millimeter wave antenna modules may be disposed inside the speaker sound outlet 201.

As shown in fig. 3, a sound outlet hole with the same shape as the sound outlet hole 201 of the speaker on the right side is added on the left side of the bottom of fig. 1, however, there is no real speaker (sound cavity box) inside the sound outlet hole 201, but the speaker sound outlet hole 201 is camouflaged, and a millimeter wave antenna module 1 is placed inside the position, so that the millimeter wave antenna array panel 11 of the millimeter wave antenna module 1 is placed at a non-shielding window position opposite to the speaker sound outlet hole 201, and millimeter wave signals are ensured not to be shielded.

Currently, mobile terminal stereo speakers are typically configured in 2, one placed at the bottom and the other at the top earpiece position, and are multiplexed integrally with the earpiece and speaker. In this way, the speaker sound outlet for camouflage is added at the bottom of the mobile terminal, the inside of the speaker sound outlet is used for placing the millimeter wave antenna module 1, and the speaker sound outlet is used as an intuitive stereo prompt from the perspective of a user and is not purely redundant.

Compared with the method that a SIM card notch is added at the position of the loudspeaker sound outlet 201, the millimeter wave antenna module 1 is placed in the handle end of the SIM card holder corresponding to the newly added notch, so that the same purpose of placing 4 millimeter wave antenna modules 1 can be achieved, the newly added SIM card occupies very large space, and the space which is compact in the mobile terminal is extremely unfavorable and difficult to realize; therefore, the 4 th millimeter wave antenna module 1 is placed in the speaker sound outlet hole 201 for camouflage use, namely, is sealed in the functional structure of the metal middle frame opening camouflaged into the actual function, and only the area with the size of the millimeter wave antenna module 1 is occupied, which is a more effective space-saving scheme.

Of course, in practical application, as shown in fig. 4, the 4 th millimeter wave antenna module 1 may also be placed on one side of the bottom of the right speaker 20 at the bottom of the mobile terminal, where the speaker sound outlet 201 is provided with an opening near the side of the millimeter wave antenna module 1, and the opening ensures that the millimeter wave antenna array 11 that can be used for the millimeter wave antenna module 1 receives and transmits millimeter wave signals. In this case, the speaker sound outlet 201 is only slightly longer than the original speaker, and the user still looks as a unified speaker sound outlet 201 from the external appearance.

Referring to fig. 1, 3-4, 5-10 and 12-13 in combination, in an embodiment, the mobile terminal further includes a metal middle frame 6 disposed at a side of the mobile terminal, and an opening (not shown) is disposed at a side of the metal middle frame 6, through which the functional structure penetrates. The metal center 6 is provided at the side of the mobile terminal and one important function is fixation and support. Normally, when the millimeter wave antenna module 1 is placed on the side of the metal middle frame 6, if millimeter wave signals are to be transmitted and received from the side of the metal middle frame 6, the area of the metal middle frame 6 close to the millimeter wave antenna module 1 must be opened, and the opening must be plugged by filling non-shielding materials for the whole appearance, if there are a plurality of millimeter wave antenna modules 1, the process complexity of the metal middle frame 6 is increased as a whole, and the strength of the side of the metal middle frame 6 is reduced to a certain extent. Under the condition that the side of the metal middle frame 6 is not provided with an additional opening, the functional structure is multiplexed, the millimeter wave antenna module 1 is arranged in the functional structure, new openings for the layout of the metal middle frame 6 can be avoided, the integrity of the metal material of the metal middle frame 1 is maintained to the greatest extent, and meanwhile, the normal use of a mobile terminal by a user in a millimeter wave wireless communication scene is ensured.

In one embodiment, the functional structure includes side keys (e.g., volume key 2, power on key 3). Side keys are a relatively common functional structure of the side of a mobile terminal.

Referring to fig. 5-9 in combination, in one embodiment, the side key includes: key main bodies 21, 31, click cantilevers 22, 32, and elastic insulating blocks 23, 33 (for example, silica gel blocks) are provided.

The key main bodies 21 and 31 penetrate through the opening of the metal middle frame 6 and protrude out of the metal middle frame 6 of the mobile terminal, the key main bodies 21 and 31 are used for being pressed, hollow areas are arranged inside the key main bodies 21 and 31, and the millimeter wave antenna module 1 is placed in the hollow areas. One ends of the buckling cantilever 22 and 32 are connected with the bottoms of the key main bodies 21 and 31, the other ends of the buckling cantilever 22 and 32 are buckled on the metal middle frame 6, and hollow holes or grooves are formed in the buckling cantilever 22 and 32; elastic insulating blocks 23, 33 are provided at the bottoms of the key main bodies 21, 31. The mobile terminal further includes: flexible circuit boards 24 and 34 (FPC and Flexible Printed Circuit), wherein the flexible circuit boards 24 and 34 are disposed at positions corresponding to the key main bodies 21 and 31, key membrane switches 241 and 341 are disposed on the flexible circuit boards 24 and 34, and the positions of the key membrane switches 241 and 341 correspond to the positions of the elastic insulating blocks 23 and 33. The flexible circuit boards 24, 34 may be disposed between the metal middle frame groove 61 and the metal middle frame interlayer 62, wherein the metal middle frame interlayer 62 may be provided with the FPC metal liner 25, 35, and the flexible circuit boards 24, 34 are disposed on the FPC metal liner 25, 35.

When the key main body 21, 31 is pressed, the elastic insulating blocks 23, 33 press the key membrane switches 241, 341 and generate key signals for closing the key membrane switches, which can be transmitted to the main circuit board (FPC shown as A1, A2 in the figure is connected to the main circuit board) through the flexible circuit boards 24, 34; the signal lines of the millimeter wave antenna module 1 are connected to the flexible circuit boards 24, 34 through the hollow holes or grooves of the snap-fit cantilevers 22, 32 and to the main circuit board through the flexible circuit boards 24, 34.

The signals of the millimeter wave antenna module 1 in the hollow area of the key main body 21, 31 of the side key are led out from the hollow holes or grooves inside the snap cantilevers 22, 32 of the side key to the FPC boards 24, 34 having the key membrane switches 241, 341, and finally the signals are transmitted to the main circuit board by the FPC boards 24, 34.

Referring to fig. 1 in combination, the side keys of the mobile terminal are mainly of two types, a volume key 2 (including up and down keys) and a power key 3. The volume key 2 and the start key 3 may be positioned adjacent to each other on the same side of the mobile terminal. However, when the millimeter wave antenna module 1 is applied to a mobile terminal, the best performance is achieved to place the millimeter wave antenna modules 1 in a plurality of different directions, so that the placement effect of dividing the volume key 2 and the start key 3 into two sides when the side keys are multiplexed to the millimeter wave antenna modules 1 is better.

Referring to fig. 1 and 5 in combination, in an embodiment, the side key is a volume key 2, the millimeter wave antenna module 1 is laterally placed in a hollow area of a key main body 21 of the volume key 2, and two elastic insulating blocks 23 are symmetrically disposed at the bottom of the key main body 21.

According to the length of the volume key of the current mobile terminal, in the embodiment of the present application, after the three-dimensional length of the volume key is slightly increased, the millimeter wave antenna module is directly accommodated in the hollow area, and the outer surface of the key main body 21 may be a shielding material (the key main body outer layer shielding material area 212 forming the volume key) except for the non-shielding material (the key main body outer layer non-shielding material area 211 forming the volume key) at the millimeter wave antenna array panel 11, for example, may be a metal thin wall.

Referring to fig. 1, 6 and 7 in combination, in an embodiment, the side key is a power-on key 3, the key main body 31 includes a top key main body 311 and a bottom key main body 312 which are arranged in a boss structure, the bottom key main body 311 is provided with a hollow area, the millimeter wave antenna module 1 is laid down in the hollow area of the bottom key main body 311 of the power-on key 3, and an elastic insulating block 33 is arranged at the bottom of the bottom key main body 312.

According to the length of the current power-on key of the mobile terminal, in the embodiment of the present application, a boss structure is used for the power-on key 3, where the boss structure includes a top key body 311 located at the top of the key and a bottom key body 312 located at the bottom of the key, the top key body 311 is made of a non-shielding material (forming a local non-shielding material area 311b or an integral non-shielding material area 311 c) in an area corresponding to the millimeter wave antenna array panel, for example, a non-metal material, the bottom cover covers the millimeter wave antenna array panel 11, the hollow area of the bottom key body 312 accommodates the millimeter wave antenna module 1, and the bottom surface layer is made of a shielding material (for example, a metal thin wall) except for covering the non-shielding material (for example, the non-metal material) at the millimeter wave antenna array panel 11.

The volume of the millimeter wave antenna module can be 21mm by 3.5mm by 0.6mm at present, and the volume enables the multiplexing of the side key and the SIM card holder to be easy to realize. However, because the side keys and SIM card holders are common to users, there are still many considerations that need to be made on them for compatible layout and signal line routing of millimeter wave antenna modules.

First, in the case of multiplexing the millimeter wave antenna module 1 to the side key, since the difference between the length of the volume key 2 and the length of the power key 3 is large, it is required to place in a different manner.

For the millimeter wave antenna module 1 to be compatible with the volume key 2, since the length of the volume key of the current mobile terminal is 20mm, the width is 1mm, and the height is 3mm, in the embodiment of the present application, the volume key 2 is slightly extended in length and height, for example, the length is 22mm, and the height is 4mm, and the key main body 21 of the volume key 2 is made into a hollow structure with a metal wall thickness of 0.2mm, so that the millimeter wave antenna module 1 can be directly and laterally accommodated therein (as shown in fig. 5). In this case, the hollow volume key 2 corresponds to a fixed frame of the millimeter wave antenna module 1, but the fixed frame is displaced up and down according to whether the user presses the hand.

In fig. 5, the outer layer of the hollow key main body 21 leaves a non-shielding material area 211 except for the area corresponding to the millimeter wave antenna array panel 11, and the remaining outer layer is a shielding material (e.g. metal) area 212, and the inside of the millimeter wave antenna module 1 may further include a PCB board with higher strength, so that sufficient strength can be ensured to be resistant to the operation of a user. The other board-to-board connector having the first board-to-board connector 13 of the millimeter wave antenna module 1 in the hollow interior of the key main body 21 with the fit in the corresponding position leads out the signal line 14 of the millimeter wave antenna module 1 through the hollow hole or groove of the snap cantilever 22 of the volume key 2, then connects to the wiring layer of the FPC board 24 with the double key membrane switch 241 soldered on the surface thereof through the soft shield line with the redundant stroke (the connection of the signal line 14 to the FPC board 24 is detachable for easy assembly and replacement of the solid volume key), and further transfers to the main circuit board of the mobile terminal through the FPC board 24 (the FPC board shown as A1 in the figure is connected to the main circuit board). Meanwhile, when the user presses down the key body 21 of the volume key, pressure is applied to the key membrane switch 241 through the two elastic insulating blocks 23 (e.g., silicone blocks) at the bottom of the key body 21, so that the key membrane switch 241 is closed (i.e., the elastic dome of the key membrane switch 241 is contacted with the contact at the inner center), the key signal assumes an on state and this state is transferred to the main circuit board of the mobile terminal through the FPC board 24. Compared with the key body of the conventional volume key, the millimeter wave antenna module 1 is accommodated in the hollow space of the key body 21 in fig. 5, so that the mass is increased, and the elastic force requirement of the key membrane switch 241 is increased, so that the key body 21 is kept in a state of being sprung by the key membrane switch 241 in a normal state.

In fig. 5, since the millimeter wave antenna module 1 is laterally disposed, the millimeter wave antenna array panel 11 needs to be unable to be shielded from signals in a default state (i.e., default state), so that the millimeter wave antenna array panel 11 needs to face to a side with a larger radian of the metal middle frame 6, and if necessary, non-shielding material filling can be performed in a local area of the metal middle frame 6 corresponding to the millimeter wave antenna array panel 11. Because the whole millimeter wave antenna array panel 11 has a small area, the influence of local non-shielding material filling of the corresponding area of the metal middle frame 6 on the appearance surface is negligible.

Referring to fig. 6 and 7, for the millimeter wave antenna module 1 to be compatible with the power-on key 3, since the length of the power-on key of the current mobile terminal is 10mm, the length is not required to directly accommodate the millimeter wave antenna module, and more complex processing is required to be performed on the power-on key relative to the volume key. As shown in fig. 6, the power-on key 3 is built according to a boss structure and is divided into an upper part and a lower part (which can be integrally formed or detached), the top key main body 311 positioned at the top is still 10mm long and 1mm wide and is close to 2mm in height (namely, 1mm protruding from the metal middle frame, 0.4mm of a partial covering layer of the metal middle frame and 0.4mm of an elastic stroke of the key main body are required to be met); the bottom key body 312 at the bottom includes a hollow region, which accommodates therein the millimeter wave antenna module 1 lying down, and has a height of 1mm (illustrated to describe the internal structure and not shown to scale), a width of 4mm, and a length of 22mm. Thus, the height of the key main body 31 is approximately 5mm, which is higher than that of a conventional power key and has larger mass, so that the key main body 31 is kept in a sprung state, and the elasticity of the key membrane switch 341 is correspondingly enhanced. The signal line 14 of the millimeter wave antenna module 1 is still led out through the hollow hole or groove of the snap cantilever 32 of the power-on key 3 to the FPC board 34 soldered with the key membrane switch 341 (the signal line 14 is connected to the FPC board 34 so as to be detachable for assembling and replacing the solid power-on key), and the FPC board 34 finally sends the key signal and the signal of the millimeter wave antenna module 1 to the main circuit board of the mobile terminal (the FPC shown as A2 in the figure is connected to the main circuit board).

The bottom outer layer of the key body 31 of the start key is made of non-shielding material except the area corresponding to the millimeter wave antenna array panel 11, and the rest is made of shielding material (such as metal). Meanwhile, the areas of the top of the key main body 31 and the metal middle frame 6 corresponding to the millimeter wave antenna array panel 11 are also non-shielding material areas (the shielding distance is not less than 1.5mm from the outer edge of the millimeter wave antenna array), so that a local non-shielding material area 311b of the top key main body 311, a local shielding material area 311a of the top key main body 311 and a local non-shielding material area 63 of the metal middle frame 6 are formed, and millimeter wave signal receiving and transmitting is ensured. However, the top key body 311 with a length of 1mm is processed into two materials, and the structural reliability is poor, so that the top key body can be integrally processed into a plastic non-shielding material. Meanwhile, since the width of the millimeter wave antenna array panel 11 is wider than the width of the top key body 311, the part of the top key body 311 corresponding to the metal middle frame 6 at the position of the millimeter wave antenna array panel 11 needs to be processed into an unshielded material, so as to form a local unshielded material area 63 of the metal middle frame 6.

Further, since the metal middle frame 6 in fig. 6 is partially processed to be a thin area 63 of non-shielding material, the requirement for structural reliability is high, and the method in fig. 7 can be further modified, that is, the top key body 311 covers the whole area of the millimeter wave antenna array panel 11, and the whole top key body 311 is also made of non-shielding material. Fig. 6 and 7 each have advantages in that in fig. 6, since the top key body 311 does not cover the millimeter wave antenna array panel 11, the influence of the user's hand operation on the millimeter wave antenna module 1 is relatively small. Fig. 8 is a schematic longitudinal sectional view of a volume key compatible for a millimeter wave antenna module, and fig. 9 is a schematic longitudinal sectional view of a power-on key compatible for a millimeter wave antenna module, wherein 6a represents a metal center on a screen side and 6b represents a metal center on a battery case side.

It should be noted that, the mode of the volume key 2 and the power key 3 compatible with the millimeter wave antenna module 1 is not fixed, and one scheme may be used for exchanging adjustment or both schemes according to the structural state of the actual mobile terminal.

Referring to fig. 10-13 in combination, in one embodiment, the functional structure includes a card holder 5 and a card holder 4, and the millimeter wave antenna module 1 is laid down on a handle end 41 of the card holder 4. A clamping notch 42 can be arranged between the handle end 41 of the clamping bracket 4 and the clamping seat 5.

In one embodiment, the card holder 5 includes: a card placement area 51 and a push-push (push-push) structure area 52.

The card placement area 51 is used for placing a subscriber identity card (SIM, subscriber Identity Module); the push-push structure area 52 is provided with a push-push structure for enabling the card holder 4 to be inserted into or withdrawn from the card holder 51. The structure of the card holder of the embodiment of the application is a relatively common card holder structure in the mobile terminal.

The handle 41 disposed on the SIM card holder 4 is compatible with the millimeter wave antenna module 1, as shown in fig. 10. In terms of size, the stem end of the Nano SIM card holder commonly used for mobile terminals is 15mm long, 3mm wide and 0.5mm thick, and if the millimeter wave antenna module shown in fig. 2 is to be hollow and accommodated in the stem end of the card holder, the commonly used size needs to be increased, wherein the width is increased to 4mm, and the thickness is increased to 1mm, so that the requirement can be met, but in terms of length, the stem end 41 of the card holder excludes the region of the jack hole 43 for pushing the push-push structure and can be multiplexed to only 12mm of the millimeter wave antenna module 1, and the length of the stem end 41 of the final card holder needs to be increased by 10 mm. At this time, the SIM card holder used in the embodiment of the present application needs to be customized specifically, and on the premise that the size of the handle end 41 of the customized SIM card holder meets the requirement, the middle part of the handle end 41 of the card holder is free to accommodate the millimeter wave antenna module 1, and the outer layer of the handle end 41 of the card holder is a metal wall with a thickness of 0.3mm for reliable support, but the metal wall needs to leave a non-shielding material area in the area aiming at the millimeter wave antenna array panel 11 in the millimeter wave antenna module 1, so as to facilitate millimeter wave signal transceiving.

Referring to fig. 10-12 in combination, in an embodiment, the mobile terminal further includes a magnetic attraction/probe connector 7, and the signal line 14 of the millimeter wave antenna module 1 is connected to the main circuit board through the magnetic attraction/probe connector 7.

Because the push-push structure can enable the card holder 4 to be inserted into or withdrawn from the card holder 5, the magnetic attraction/probe type connector 7 can be well matched with the push-push structure, when the push-push structure enables the card holder 4 to be inserted into the card holder 5, the magnetic attraction/probe type connector 7 can be connected with the signal line 14 of the millimeter wave antenna module 1, the millimeter wave antenna module 1 is in a working state, and when the push-push structure enables the card holder 4 to be withdrawn from the card holder 5, the magnetic attraction/probe type connector 7 can be disconnected with the signal line 14 of the millimeter wave antenna module 1 relatively easily, and the millimeter wave antenna module 1 is in a non-working state.

Referring to fig. 11 in combination, fig. 11 is a schematic diagram showing that the ejector pin 81 works on the push-push structure and the magnetic/probe connector, the signal cable 14 with a small stretching capability of the millimeter wave antenna module 1 is placed in the rigid sleeve of the magnetic/probe connector 7a on the card support side, the front end of the signal cable is telescopic, when the user pushes the push-push structure with the ejector pin 81 to insert the card support 4 into the card seat 5, the card pin at the tail end of the ejector pin 81 enters the self-locking channel 83 along the transient travel 85, and temporarily resides at the transient residence position 84, and the connector 7b with the heteropolar magnetic ring 91 or the connector 7b with the probe type can firmly suck the magnetic connector on the card support side or the probe on the card support side is compressed by the probe to realize signal connection. After the user pushes the push-push structure again with the ejector pin 81, the card holder 4 is ejected under the action of the elastic force of the spring 82, and the magnetic attraction/probe connector 7a at the card holder side is disconnected with the magnetic attraction/probe connector 7b at the main circuit board side following the displacement of the card holder 4.

The signal line of the millimeter wave antenna module 1 is connected to the main circuit board through the magnetic attraction/probe connector 7, and two relatively easy solutions can be presented as follows:

referring to fig. 10 in combination, in one embodiment, the magnetic attraction/probe connector 7 is disposed in an intermediate region between the card placing region 51 and the push-push structure region 52, and has a predetermined length capable of reaching the main circuit board; the inside of the card support 4 is provided with a hollow hole or a groove, and the position of the hollow hole or the groove corresponds to the position of the middle area. The millimeter wave antenna module 1 further includes a first board-to-board connector 11, the first board-to-board connector 11 being directed inward of the handle end 41 of the card holder 4 and having a position corresponding to the position of the intermediate region; the signal wires of the first board-to-board connector 11 lead in signal cables through other board-to-board connectors, the signal cables enter the magnetic attraction/probe type connector 7 in the card holder 5 through hollow holes or grooves in the card holder 4, and are connected to the adapting connector of the main circuit board on the outer side of the card holder 7 through the magnetic attraction/probe type connector 7.

In the embodiment of the application, in order to ensure that the signal of the millimeter wave antenna module 1 is transmitted to the main circuit board, a hollow hole or a slot is reserved in the card holder 4 for routing a signal cable requiring strict impedance matching, a magnetic attraction/probe type connector 7 with a sufficient length (which is easier to separate from the board-to-board connector) is added to the card holder 5 at a position corresponding to the hollow hole or the slot at the tail of the card holder 4, meanwhile, the magnetic attraction/probe type connector 7 ensures that a millimeter wave intermediate frequency signal (which is still a high frequency signal in nature) can be reliably matched, a corresponding millimeter wave signal routing impedance control area 53 is formed in the middle area of the card holder, and the magnetic attraction/probe type connector 7 at the tail of the card holder can be reliably connected to an adapter connector of the main circuit board after the card holder 4 is inserted into the card holder 5.

The millimeter wave antenna array panel 11 of the millimeter wave antenna module 1 faces the outside of the handle end 41 of the card holder 4, the first board-to-board connector 13 faces the inside of the handle end 41 of the card holder 4, and the signal of the millimeter wave antenna module 1 is led into the signal cable with shielding function in the hollow hole or slot inside the card holder through the other matched board-to-board connectors, and the signal cable contains millimeter wave intermediate frequency IQ signals, so that strict impedance control is required.

Referring to fig. 12 in combination, in one embodiment, the magnetic attraction/probe connector 7 is disposed on the metal center 6; the metal middle frame 6 is also provided with a through hole 64. The millimeter wave antenna module 1 further comprises a first board-to-board connector 13, wherein the first board-to-board connector 13 faces to the inner side of the handle end 41 of the card holder 4 and corresponds to the area outside the card seat 5; the signal wires of the first board-to-board connector 13 lead in signal cables through the other board-to-board connectors, the magnetic attraction/probe connector 7, which are led out of the through holes 64 of the metal center 6 and connected to the mating connector 92 (e.g., board-to-board connector) of the main circuit board.

The SIM card holder with millimeter wave antenna module shown in fig. 10 needs a reserved gap on the card holder to facilitate the magnetic attraction/probe connector to pass through, and for the case that the card holder has no reserved gap, the processing manner of fig. 12 may be adopted: that is, the other board-to-board connector with double-sided signal connection is adapted to the first board-to-board connector 11 of the millimeter wave antenna module 1 on the card holder 4, and when the card holder 4 is inserted into the card holder 5, the other board-to-board connector with double-sided signal connection can be reliably connected by the magnetic attraction/probe connector 7 placed at the corresponding position on the metal center 6, and then the signal cable terminated with the magnetic attraction/probe connector 7 is passed out from the through hole 64 of the metal center 6 to the main circuit board and plugged into the adapting connector 92 (e.g., board-to-board connector) of the main circuit board, thereby achieving the signal and main circuit board circuit communication of the millimeter wave antenna module.

In an embodiment, the signal of the millimeter wave antenna module may also be introduced to the main circuit board through the card placement area of the card holder. That is, the card holder includes a first card placement area and a second card placement area, and the signal of the millimeter wave antenna module is introduced to the main circuit board through the second card placement area of the card holder.

In an embodiment, the second card placement area is leveled, the corresponding signals led out by the millimeter wave antenna module are led into the surface of the leveled second card placement area, and then directly contact with the shrapnel pins of the card holder corresponding to the signals through the surface of the leveled second card placement area, and the signals of the millimeter wave antenna module are led into the main circuit board through the card holder.

The SIM card support with the millimeter wave antenna module, the signal of the millimeter wave antenna module can be led out from the SIM card placement area of the card seat, namely, the SIM card placement area of one side surface of the double-sided SIM card seat is utilized to supplement the originally sunken SIM card placement area of the side surface, corresponding signals led out from the signal of the millimeter wave antenna module inside the card support are distributed on the surface after supplement, and at the moment, the surface after supplement can be directly contacted with the spring plate pins of the card seat corresponding to the signals, so that the signal of the millimeter wave antenna module is led into the main circuit board (shown in the table 1) through the card seat.

The SIM card socket spring has 6 signal definitions (GND, power supply, clock, reset, programming voltage, data input/output, respectively) to meet the signal multiplexing requirements of the millimeter wave antenna module (GND, power supply, intermediate frequency differential signal pair, power voltage, power supply enable, respectively), as shown in table 1. The millimeter wave intermediate frequency signal in the mode can possibly have the problems of unmatched impedance or poor shielding at the spring pin of the card seat, and can be solved by wrapping shielding materials on the card seat, adjusting the impedance matching of a circuit and other electromagnetic compatibility means.

Table 1 SIM card and millimeter wave antenna module signal multiplexing definition comparison table

SIM card signal definition	Millimeter wave antenna module signal definition	Remarks
			VPP (Programming Voltage)	VPH_PWR (Power Voltage)	Analog voltage, SIM card VPP suspension
RST (reset)	PWR_EN (Power supply Enable)
			VCC (Circuit operating voltage)	VDD (chip operating voltage)	Digital voltage
GND (ground)	GND (ground)
			I/O (data input/output)	IF+ (intermediate frequency Signal Difference+)
CLK (clock)	IF- (intermediate frequency Signal Difference-)

In an embodiment, referring to fig. 13, the mobile terminal further includes a signal bridging dedicated card, where the signal bridging dedicated card is placed in the second card placement area 51, and signal contact areas are provided on two sides of the signal bridging dedicated card; a slight protruding spring plate is arranged on the clamping support; and the corresponding signals led out by the millimeter wave antenna module are led into the signal contact area on one side of the special signal bridging card through the slightly protruding spring plates, then pass through the signal contact area on the other side of the special signal bridging card and are contacted with the spring plate pins of the clamping seat corresponding to the signals, and then the signals of the millimeter wave antenna module are led into the main circuit board through the clamping seat.

Referring to fig. 14-16 in combination, in one embodiment, the second card placement area 51 can also be placed with another subscriber identity card; the main circuit board further includes: universal analog switching device and broadband analog switching device.

The universal analog switch device is used for controlling the switching between the power supply of the other user identification card and the power supply of the signal bridging special card, and controlling the switching between the reset signal of the other user identification card and the power supply enabling signal of the signal bridging special card.

The broadband analog switch device is used for controlling the switching between the data signal of the other user identity identification card and the intermediate frequency signal difference positive of the signal bridging special card, and controlling the switching between the clock signal of the other user identity identification card and the intermediate frequency signal difference negative of the signal bridging special card.

When the system processor of the main circuit board determines that the signal bridging special card is placed in the second card placement area through the programming voltage of the programming voltage signal pin of the card seat, the universal analog switch device and the broadband analog switch device are controlled to switch, so that the signal bridging special card is in a working state; when the system processor of the main circuit board determines that the other user identification card is placed in the second card placement area through the programming voltage of the programming voltage signal pin of the card seat, the universal analog switch device and the broadband analog switch device are controlled to switch, so that the other user identification card is in a working state.

The specific hardware circuit connection block diagram is shown in fig. 14: according to fig. 14, the specific discriminating process of the system processor is as follows:

firstly, because the SIM card VPP is suspended, the system processor performs impedance identification according to the suspended state of the signal pin of the card seat in a default state (namely a default state);

secondly, after a special signal bridging card of the millimeter wave antenna module with a signal contact area on the two sides is filled into a SIM card placement area, a system processor recognizes the impedance change of the pin, and then a broadband analog switch device and a general analog switch device are started to switch;

and thirdly, switching the signal channel of the SIM card in a default state into the signal channel of the special signal bridging card of the millimeter wave antenna module by the universal analog switch device and the broadband analog switch device to realize millimeter wave communication.

The analog switch in fig. 14 may be a double pole double throw analog switch, and specific hardware circuit connection block diagrams are shown in fig. 15-16.

The millimeter wave antenna module can be customized specifically, after customization, the first board-to-board connector can be removed, signals of the millimeter wave antenna module can be directly led out through the round mini-type bundling cable jack with smaller occupied space, and the length scale can be controlled within 15mm, so that the millimeter wave antenna module is better suitable for a handle end and a starting key of a SIM card holder, and the SIM card holder, the starting key and the universal specification are compatible.

The millimeter wave antenna module is reused at the side key and the SIM card support, and the mobile terminal can be flexibly configured according to different market frequency band requirements by replacing the side key and the SIM card support with solid modules, so that the area needing frequency change can be directly replaced by the side key or the SIM card support which internally accommodates the millimeter wave antenna module after frequency change.

It is to be understood that the terminology used in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

The preferred embodiments of the present application have been described above with reference to the accompanying drawings, and thus do not limit the scope of the claims of the present application. Any modifications, equivalent substitutions and improvements made by those skilled in the art without departing from the scope and spirit of the present application shall fall within the scope of the appended claims.

Claims

1. A mobile terminal comprising a functional structure disposed on a side of the mobile terminal, the mobile terminal further comprising:

the millimeter wave antenna module is arranged in the functional structure and comprises a millimeter wave antenna array panel, a modem and a power supply integrated circuit chip, wherein the area corresponding to the millimeter wave antenna array panel is a clearance area, and signals of the millimeter wave antenna module are transmitted to a main circuit board of the mobile terminal.

2. The mobile terminal of claim 1, further comprising a metal bezel disposed on a side of the mobile terminal, the metal bezel being provided with an opening through which the functional structure extends.

3. The mobile terminal of claim 2, wherein the functional structure includes a speaker sound outlet, the millimeter wave antenna module is disposed inside the speaker sound outlet, and the position of the millimeter wave antenna array panel is opposite to the position of the non-shielding window of the speaker sound outlet, and the speaker sound production is not affected after the millimeter wave antenna module is disposed inside the speaker sound outlet.

4. The mobile terminal of claim 2, wherein the functional structure comprises a side key.

5. The mobile terminal of claim 4, wherein the side key comprises:

the key body penetrates through the opening and protrudes out of the metal middle frame of the mobile terminal and is used for being pressed, a hollow area is arranged in the key body, and the millimeter wave antenna module is placed in the hollow area;

one end of the buckle cantilever is connected with the bottom of the key main body, the other end of the buckle cantilever is buckled on the metal middle frame, and a hollow hole or a groove is formed in the buckle cantilever;

The elastic insulating block is arranged at the bottom of the key main body;

the mobile terminal further includes:

the flexible circuit board is arranged at a position corresponding to the key main body, a key film switch is arranged on the flexible circuit board, and the position of the key film switch corresponds to the position of the elastic insulating block;

when the key main body is pressed, the elastic insulating block presses the key membrane switch and generates a key signal for closing the key membrane switch, and the key signal can be transmitted to the main circuit board through the flexible circuit board; the signal line of the millimeter wave antenna module is connected to the flexible circuit board through the hollow hole or the groove of the buckle cantilever and is connected to the main circuit board through the flexible circuit board.

6. The mobile terminal according to claim 5, wherein,

the side key is a volume key, and the millimeter wave antenna module is laterally placed in a hollow area of a key main body of the volume key;

or, the side key is a start key, the key main body comprises a top key main body and a bottom key main body which are arranged in a boss structure, the bottom key main body is provided with a hollow area, and the millimeter wave antenna module is placed in the hollow area of the bottom key main body of the start key in a lying way.

7. The mobile terminal of claim 2, wherein the functional structure comprises a card holder and a card bracket, and the millimeter wave antenna module is laid on a handle end of the card bracket.

8. The mobile terminal of claim 7, wherein the cartridge comprises:

the card placing area is used for placing the user identification card;

and the pushing-pushing structure area is provided with a pushing-pushing structure which is used for enabling the card holder to be inserted into or withdrawn from the card seat.

9. The mobile terminal of claim 8, further comprising a magnetic attraction/probe connector through which signal lines of the millimeter wave antenna module are connected to the main circuit board.

10. The mobile terminal of claim 9, wherein the mobile terminal comprises a mobile terminal,

the magnetic attraction/probe type connector is arranged in an intermediate area between the card placing area and the pushing-pushing structure area and has a preset length capable of reaching the main circuit board; a hollow hole or a groove is formed in the clamping support, and the position of the hollow hole or the groove corresponds to the position of the middle area;

the millimeter wave antenna module further comprises a first board-to-board connector which faces to the inner side of the handle end of the card holder and the position of the first board-to-board connector corresponds to the position of the middle area; the signal wire of the first board-to-board connector is led in a signal cable through other board-to-board connectors, the signal cable enters the magnetic attraction/probe type connector in the clamping seat through a hollow hole or a groove in the clamping seat, and is connected to the adapting connector of the main circuit board at the outer side of the clamping seat through the magnetic attraction/probe type connector;

Or,

the magnetic attraction/probe type connector is arranged on the metal middle frame; the metal middle frame is also provided with a through hole;

the millimeter wave antenna module further comprises a first board-to-board connector which faces the inner side of the handle end of the card holder and corresponds to the area outside the card holder; the signal wire of the first board-to-board connector is led into a signal cable through other board-to-board connectors and the magnetic attraction/probe type connector, and the signal cable penetrates out of the through hole of the metal middle frame and is connected to the adapting connector of the main circuit board.

11. The mobile terminal of claim 8, wherein the card holder includes a first card placement area and a second card placement area, and wherein signals of the millimeter wave antenna module are introduced to the main circuit board through the second card placement area of the card holder.

12. The mobile terminal of claim 11, wherein the mobile terminal comprises a mobile terminal,

the second card placement area is supplemented, corresponding signals led out by the millimeter wave antenna module are led into the surface of the supplemented second card placement area, then the signals are directly contacted with spring plate pins of corresponding signals of the card seat through the surface of the supplemented second card placement area, and the signals of the millimeter wave antenna module are led into the main circuit board through the card seat;

Or,

the mobile terminal further comprises a signal bridging special card, wherein the signal bridging special card is placed in the second card placement area, and signal contact areas are arranged on two sides of the signal bridging special card; a slight protruding spring plate is arranged on the clamping support; and the corresponding signals led out by the millimeter wave antenna module are led into the signal contact area on one side of the special signal bridging card through the slightly protruding spring plates, then pass through the signal contact area on the other side of the special signal bridging card and are contacted with the spring plate pins of the clamping seat corresponding to the signals, and then the signals of the millimeter wave antenna module are led into the main circuit board through the clamping seat.

13. The mobile terminal of claim 12, wherein the second card placement area is further capable of being placed with another subscriber identity card;

the main circuit board further includes:

the universal analog switch device is used for controlling the switching between the power supply of the other user identity identification card and the power supply of the signal bridging special card and controlling the switching between the reset signal of the other user identity identification card and the power supply enabling signal of the signal bridging special card;

The broadband analog switch device is used for controlling the switching between the data signal of the other user identity identification card and the intermediate frequency signal difference positive of the signal bridging special card and controlling the switching between the clock signal of the other user identity identification card and the intermediate frequency signal difference negative of the signal bridging special card;