WO2023216718A1

WO2023216718A1 - Mobile terminal

Info

Publication number: WO2023216718A1
Application number: PCT/CN2023/082301
Authority: WO
Inventors: 张永亮
Original assignee: 中兴通讯股份有限公司
Priority date: 2022-05-13
Filing date: 2023-03-17
Publication date: 2023-11-16
Also published as: CN117097825A

Abstract

Disclosed in embodiments of the present application is a mobile terminal. The mobile terminal comprises a functional structure, the functional structure being provided on a side surface of the mobile terminal. The mobile terminal further comprises a millimeter wave antenna module (1) provided in the functional structure, the millimeter wave antenna module (1) comprising a millimeter wave antenna array panel (11), a modulator-demodulator, and a power supply integrated circuit chip (12), an area corresponding to the millimeter wave antenna array panel (11) being a clearance area, and a signal of the millimeter wave antenna module (1) being transmitted to a main circuit board of the mobile terminal.

Description

mobile terminal

Cross-references to related applications

This application is based on the Chinese patent application CN202210520429.8 with the invention name "Mobile Terminal" submitted on May 13, 2022, and claims the priority of this patent application, and all the disclosed contents are incorporated into this application by reference.

Technical field

The embodiments of this application relate to the technical field of mobile terminals.

Background technique

When existing mobile terminals with metal middle frames use millimeter wave antenna modules for communication applications, one situation is to make local openings in the metal middle frame and fill them with non-shielding materials to ensure that the antenna array signals of the millimeter wave antenna module cannot be sent and received. Hidden. Another situation is that some laboratories are studying the metal middle frame to partially open microscopic holes to expose millimeter wave antenna array elements. The intervals between the array elements are still the metal middle frame. However, the first case will reduce the strength of the metal frame, and the second case has not yet been commercialized.

Contents of the invention

Embodiments of the present application provide a mobile terminal, which includes a functional structure. The functional structure is arranged on the side of the mobile terminal. The mobile terminal further includes: a millimeter wave antenna module, which is arranged in the functional structure. The wave antenna module includes a millimeter wave antenna array panel, a modem and a power integrated circuit chip. The area corresponding to the millimeter wave antenna array panel is a clear area. The signal of the millimeter wave antenna module is transmitted to the main circuit board of the mobile terminal. .

Description of the drawings

Figure 1 is a schematic structural diagram of an embodiment of a mobile terminal of the present application;

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

Figure 3 is a schematic structural diagram of a second embodiment of the mobile terminal of the present application;

Figure 4 is a schematic structural diagram of a third embodiment of the mobile terminal of the present application;

Figure 5 is a schematic diagram of an embodiment of the millimeter wave antenna module in the mobile terminal of the present application that is compatible with being placed on the volume button;

Figure 6 is a schematic diagram of an embodiment of the millimeter wave antenna module in the mobile terminal of the present application that is compatible with being placed on the power-on button;

Figure 7 is a schematic diagram of another embodiment of the millimeter-wave antenna module in the mobile terminal of the present application being compatible with the power-on button;

Figure 8 is a schematic longitudinal cross-sectional view of an embodiment of the millimeter wave antenna module in the mobile terminal of the present application that is compatible with being placed on the volume button;

Figure 9 is a schematic longitudinal cross-sectional view of an embodiment of the mobile terminal in which the millimeter-wave antenna module is compatible with the power-on button;

Figure 10 is a schematic diagram of an embodiment of the millimeter wave antenna module in the mobile terminal of the present application being compatible with the card tray;

Figure 11 shows the disconnection of the magnetic/probe connector on the card tray side of the mobile terminal of this application and the push-push operation of the ejection pin on the card holder. A schematic diagram of an embodiment of the structure;

Figure 12 is a schematic diagram of another embodiment of the millimeter wave antenna module in the mobile terminal of the present application being compatible with the card tray;

Figure 13 is a schematic diagram of another embodiment of the millimeter wave antenna module in the mobile terminal of the present application being compatible with the card tray;

Figure 14 is a schematic diagram of signal switching between the millimeter wave antenna module and the SIM card in the mobile terminal of the present application;

Figure 15 is a schematic diagram of circuit switching of a broadband analog switch device in a mobile terminal of the present application;

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

Description of main components and symbols:

10. USB port; 20. Speaker; 201. Speaker sound hole; 30. 4G LTE antenna 1 & Sub 6GHz band 2 antennas; 40. 4G LTE antenna 2 & Sub 6GHz band 2 antennas; 50. Sub 6GHz band 1 antenna; 60. 4G LTE Main antenna; 70, 4G LTE diversity antenna; 80, GPS&BT&WiFi antenna;

1. Millimeter wave antenna module; 11. Millimeter wave antenna array panel; 12. Integrated circuit chip of modem & power supply; 13. First board-to-board connector; 14. Signal line or signal cable; 15. Fine impedance PCB plate;

2. Volume button; 21. The button body of the volume button; 211. The outer non-shielding material area of the button body of the volume button; 212. The outer shielding area of the button body of the volume button; 22. The buckle cantilever of the volume button; 23 , the elastic insulation block of the volume key; 24. The FPC corresponding to the volume key; 241. The key membrane switch on the FPC corresponding to the volume key; 25. The FPC metal lining plate corresponding to the volume key; A1. The FPC corresponding to the volume key is connected to the main circuit board;

3. Power button; 31. The button body of the power button; 311. The top button body of the power button; 311a. The partial shielding material area of the top button body of the power button; 311b. The partial non-shielding material area of the top button body of the power button. ; 311c. The overall non-shielded material area of the top button body of the power button; 312. The bottom button body of the power button; 32. The snap cantilever of the power button; 33. The elastic insulating block of the power button; 34. The FPC corresponding to the power button ; 341. The key membrane switch on the FPC corresponding to the power button; 35. The FPC metal lining plate corresponding to the power button; A2. The FPC corresponding to the power button is connected to the main circuit board;

4. Card holder; 41. The handle end of the card holder; 42. Card slot; 43. Ejector hole;

5. Card holder; 51. Card placement area or second card placement area; 52. Push-push structure area; 53. Millimeter wave signal wiring impedance control area; 54. Millimeter wave signal distribution area;

6. Metal middle frame; 6a. Metal middle frame (screen side); 6b. Metal middle frame (battery case side); 61. Metal middle frame groove; 62. Metal middle frame interlayer; 63. Partial irregularities of metal middle frame Shielding material area; 64. Through hole of metal middle frame;

7. Magnetic suction/probe type connector; 7a. Magnetic suction/probe type connector on the card tray side; 7b. Magnetic suction/probe type connector on the main circuit board side;

81. Ejector; 82. Spring; 83. Self-locking channel; 84. The temporary residence position of the stuck needle; 85. The transient stroke of the stuck needle;

9. Main circuit board; 91. Magnetic ring; 92. Adapting connector of the main circuit board.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of this application.

It should also be understood that the terminology used in the specification of the present application 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 appended claims, unless the context makes it clear otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms.

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

When existing mobile terminals with metal middle frames use millimeter wave antenna modules for communication applications, one situation is to make local openings in the metal middle frame and fill them with non-shielding materials to ensure that the antenna array signals of the millimeter wave antenna module cannot be sent and received. Hidden. Another situation is that some laboratories are studying the metal middle frame to partially open microscopic holes to expose millimeter wave antenna array elements, and the intervals between the array elements are still the metal middle frame. However, the first case will reduce the strength of the metal frame, and the second case has not yet been commercialized.

The embodiment of the present application is based on the existing mobile terminal and reuses the millimeter wave antenna module to the existing functional structure on the side of the mobile terminal, which can realize wireless communication of the mobile terminal under millimeter waves without changing the current side of the mobile terminal as much as possible. Structural layout.

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

Referring to Figures 1 to 4, Figure 1 is a schematic structural diagram of an embodiment of a mobile terminal of the present application. The mobile terminal of the embodiment of the present application includes but is not limited to: mobile phones, tablet computers, customer premise equipment (CPE, Customer Premise Equipment), Smart Home, etc.

The mobile terminal in the embodiment of the present application includes a functional structure, which is provided on the side of the mobile terminal. The functional structure is a functional structure that currently exists in the mobile terminal. The functional structure includes but is not limited to: side buttons, card tray, speaker sound hole 201, side retractable camera, etc. The side buttons include but is not limited to: volume button 2, power button 3, etc.

The side of the mobile terminal also includes other structures, such as the USB port 10. The USB port 10 is used for charging and data connection and needs to be kept open; the speaker sound hole 201 is used to play audio when the speaker 20 is placed inside it; in the embodiment of the present application , the speaker 20 may not be placed inside the speaker sound hole 201 for multiplexing.

The mobile terminal also includes: a millimeter wave antenna module 1 . The millimeter wave antenna module 1 is arranged in the functional structure. Referring to Figure 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. The area corresponding to the millimeter wave antenna array panel 11 is a clear area in the functional structure, and the signal of the millimeter wave antenna module 1 is transmitted to the main circuit board of the mobile terminal.

Millimeter wave antenna module 1 is used in mobile terminals, most of which are in the form of AiM (Antenna in Module, that is, the antenna array and the radio frequency chip form a module). The antenna array can be 2*2 MIMO (multi-input multi-output , multi-antenna transmission and multi-antenna reception), the intermediate frequency signal is output through the radio frequency chip. The size of millimeter wave antennas is millimeter level (about 2.5mm), and the frequency band is relatively wide. At the same time, the millimeter-wave antenna array is a lattice in which vertical antennas and horizontal antennas interact. Corresponding to the transmission and reception of signals in the vertical and horizontal polarization directions, a phased array system of antenna units with a multiple relationship of 16 can be used. The antenna units perform beam forming. Gathers RF signals in one direction through software control. The millimeter-wave antenna array uses liquid crystal polymer (LCP, Liquid Crystal Polymer) and polyphenylene sulfide (PPS, Poly-phenylene sulfide) materials and is further transformed into a laser direct structuring (LDS, Laser Direct Structuring) substrate. A modem converts digital signals into analog signals (modulation) and analog signals into digital signals (demodulation). The power supply supplies power to the millimeter wave antenna array panel and modem.

In an embodiment, the millimeter wave antenna module 1 further includes a first board-to-board connector 13 . As shown in Figure 2, millimeter wave antenna The line module 1 is placed on its side and can be divided into three parts: a millimeter wave antenna array panel 11, a modem & power supply IC 12, and a first board-to-board connector 13. Among them, the millimeter wave antenna array panel 11, the modem & power supply IC 12 and the first board-to-board connector 13 can be arranged on the PCB board 15 with refined impedance, as shown in Figures 6-7, 10, 12- Shown in 13. In the downstream direction, the millimeter-wave high-frequency signal from the millimeter-wave antenna array panel 11 is demodulated to an intermediate frequency by the modem, and then the signal is sent out through the first board-to-board connector 13 (usually placed in the opposite direction to the millimeter-wave antenna array panel 11). Vice versa for the upward direction.

When the millimeter wave antenna module 1 is arranged in a functional structure, the antenna surface is perpendicular to the mobile terminal screen and cannot be blocked by metal. Therefore, the area corresponding to the millimeter wave antenna array panel is a clear area (the shielding distance is not less than the outer edge of the millimeter wave antenna array). 1.5mm), the area corresponding to the millimeter wave antenna array panel can be set as a non-shielding material area in the functional structure. Because the frequency of millimeter-wave electromagnetic waves is very high, the single millimeter-wave antenna module 1 propagates and attenuates quickly in the air, and the signal is easily disturbed. Communication quality is usually ensured by incrementally laying out the modules at different locations to switch working modules according to signal strength. Generally, 2-4 millimeter wave antenna modules 1 are regularly distributed at different positions of the mobile terminal, which will achieve a more ideal use effect. Therefore, multiple millimeter wave antenna modules 1 can multiplex multiple different functional structures.

For example: the volume button 2 and the power button 3 in Figure 1 are placed separately on the left and right sides of the mobile terminal, and the SIM card slot is placed on the top of the mobile terminal (the bottom is also acceptable, but it is relatively affected by hand-holding). At this time, the three The millimeter wave antenna modules 1 are respectively placed inside the volume button 2, the power button 3 and the handle end 41 of the SIM card tray, so that the three millimeter wave antenna modules 1 can be oriented in different directions and maintain a relatively long distance, thereby realizing a millimeter wave antenna. Module 1 is optimized for mobile terminal applications. At the same time, if you do not use or only use one or two millimeter wave antenna modules 1, the mobile terminal can be replaced with solid volume buttons, power buttons or SIM card trays before leaving the factory. This enables very flexible millimeter wave antenna configurations.

See Figure 1, Figure 3 and Figure 4, 4G LTE antenna 1 & Sub 6GHz band 2 antenna 30, 4G LTE antenna 2 & Sub 6GHz band 2 antenna 40, Sub 6GHz band 1 antenna 50, 4G LTE main antenna 60, 4G LTE diversity antenna 70, The GPS&BT&WiFi antenna 80 can also be set at a corresponding position on the side of the mobile terminal.

The current global 5G solutions are divided into millimeter wave and Sub-6GHz. Millimeter wave (mmWave) can refer to electromagnetic waves with a wavelength between 1-10mm. Its wavelength is shorter and the corresponding frequency is 30-300GHz. It will transmit signals faster and have a larger storage capacity. Sub 6GHz can refer to electromagnetic waves with a frequency lower than 6GHz. Its frequency is much lower than millimeter waves, and its propagation speed and bandwidth capacity are much inferior to millimeter waves.

The functional structure of the mobile terminal in the embodiment of the present application is the functional structure that the mobile terminal has currently configured. Multiplexing the functional structure and setting the millimeter wave antenna module in the functional structure can avoid the need to implement the mobile terminal under millimeter waves. For wireless communication, a new area is laid out on the side of the mobile terminal to install the millimeter wave antenna module, so as to achieve wireless communication of the mobile terminal under millimeter waves without changing the current structural layout of the side of the mobile terminal as much as possible; millimeter wave antenna The area corresponding to the array panel is set as a non-shielding material area in the functional structure, which can ensure that the wireless signal is not shielded; the signal of the millimeter wave antenna module is transmitted to the main circuit board of the mobile terminal, and can be processed in time using the main circuit board Signal.

Referring to FIG. 3 , in one embodiment, the functional structure includes a speaker sound hole 201 , the millimeter wave antenna module 1 is placed inside the speaker sound hole 201 , and the millimeter wave antenna array panel The position is directly opposite the non-shielded window of the speaker sound hole 201. Placing the millimeter wave antenna module 1 inside the speaker sound hole 201 will not affect the sound produced by the speaker 20.

The speaker sound hole 201 in the embodiment of the present application is actually a disguised speaker sound hole 201 because the speaker 20 is not placed inside the speaker sound hole 201 . If the mobile terminal is configured with four millimeter wave antenna modules, one of the millimeter wave antenna modules can be set inside the speaker sound hole 201 .

As shown in Figure 3, a sound hole with the same shape as the speaker sound hole 201 on the right is added to the left side of the bottom of Figure 1. However, there is no real speaker (sound cavity box) inside the speaker sound hole 201. It is just disguised as the speaker sound hole 201, and a millimeter wave antenna module 1 is placed inside this position, and the millimeter wave antenna array panel 11 of the millimeter wave antenna module 1 is placed in an unshielded window facing the speaker sound hole 201. position to ensure that millimeter wave signals are not blocked.

At present, mobile terminal stereo speakers are usually configured with two, one placed at the bottom and the other placed at the top earpiece position, and the earpiece and speaker are multiplexed together. In this way, adding a disguised speaker sound hole to the bottom of the mobile terminal is used to place the millimeter wave antenna module 1. From the user's perspective, it serves as an intuitive stereo prompt and is not purely redundant.

Compared with adding a SIM card slot at the position of the speaker sound hole 201, placing the millimeter wave antenna module 1 inside the handle end of the SIM card holder corresponding to the newly added card slot can achieve the same placement of four millimeter wave antennas. The purpose of module 1 is that the newly added SIM card occupies a very large space, which is extremely unfavorable and difficult to achieve in the already compact space inside the mobile terminal; therefore, the fourth millimeter wave antenna module 1 is placed in the camouflage speaker The sound hole 201 , that is, the functional structure enclosed in the opening of the metal middle frame disguised as an actual function, only occupies an area the size of the millimeter wave antenna module 1 , which is a more effective space-saving solution.

Of course, in practical applications, as shown in Figure 4, the fourth millimeter wave antenna module 1 can also be placed on a side of the bottom of the speaker 20 on the right side of the bottom of the mobile terminal, and the speaker sound hole 201 is adjacent to the millimeter wave antenna module 1 An opening is added here, and the opening ensures that the millimeter wave antenna array 11 of the millimeter wave antenna module 1 can be used to transmit and receive millimeter wave signals. In this case, the speaker sound hole 201 is just a little longer than required for the original speaker, and the user still sees the speaker sound hole 201 as being integrated in appearance.

Referring to Figures 1, 3-4, 5-10, and 12-13, in one embodiment, the mobile terminal further includes a metal middle frame 6 disposed on the side of the mobile terminal, so An opening (not shown) is provided on the side of the metal middle frame 6, and the functional structure passes through the opening. The metal middle frame 6 is set on the side of the mobile terminal and plays an important role in fixing and supporting it. Under normal circumstances, 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 sent and received from the side of the metal middle frame 6, the area of the metal middle frame 6 adjacent to the millimeter wave antenna module 1 must be open, and For the sake of overall appearance, non-shielding material needs to be filled to block the opening. If there are multiple millimeter wave antenna modules 1, more openings will be required, which increases the overall process complexity of the metal middle frame 6 and reduces the metal cost to a certain extent. The strength of the 6 sides of the middle frame. In the case where there are no additional openings on the side of the metal middle frame 6, the functional structure is reused and the millimeter wave antenna module 1 is arranged in the functional structure, which can avoid laying out new openings for the metal middle frame 6, and maximize the While maintaining the integrity of the metal material of the metal middle frame 1, it ensures users' normal use of mobile terminals in millimeter wave wireless communication scenarios.

In one embodiment, the functional structure includes side keys (for example, volume key 2, power key 3). Side keys are a common functional structure on the side of mobile terminals.

Referring to FIGS. 5 to 9 , in one embodiment, the side keys include: key bodies 21 and 31 , snap cantilevers 22 and 32 and elastic insulating blocks 23 and 33 (for example, they can be silicone blocks).

The key bodies 21 and 31 penetrate through the opening of the metal middle frame 6 and protrude from the metal middle frame 6 of the mobile terminal. The key bodies 21 and 31 are used to be pressed. A hollow area is provided inside the key body 21 and 31 , and the millimeter wave antenna module 1 is placed in the hollow area. One end of the buckle cantilevers 22 and 32 is connected to the bottom of the button body 21 and 31, and the other end is buckled on the metal middle frame 6. The buckle cantilevers 22 and 32 are provided with hollow holes or grooves inside; elasticity Insulating blocks 23 and 33 are provided at the bottom of the key bodies 21 and 31. The mobile terminal also includes: flexible circuit boards 24 and 34 (FPC, Flexible Printed Circuit). The flexible circuit boards 24 and 34 are arranged at positions corresponding to the key bodies 21 and 31. The flexible circuit boards 24 and 34 are on Key membrane switches 241 and 341 are provided, 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 and 34 can be disposed between the metal middle frame groove 61 and the metal middle frame interlayer 62, wherein the FPC metal lining plates 25 and 35 can be disposed on the metal middle frame interlayer 62, and the flexible circuit boards 24 and 34 are disposed on the FPC On the metal lining plates 25 and 35.

When the key bodies 21 and 31 are pressed, the elastic insulating blocks 23 and 33 squeeze the key membrane switches 241 and 341 and generate a key signal that the key membrane switch is closed. The key signal can pass through the key membrane switch. The flexible circuit boards 24 and 34 are passed to the main circuit board (the FPC shown in A1 and A2 in the figure is connected to the main circuit board); the signal line of the millimeter wave antenna module 1 passes through the snap cantilevers 22 and 32 Hollow holes or slots are connected to the flexible circuit boards 24, 34 and through the flexible circuit boards 24, 34 to the main circuit board.

The signal of the millimeter-wave antenna module 1 in the hollow area of the key body 21 and 31 of the side key is led out from the hollow hole or groove inside the snap cantilever 22 and 32 of the side key to the FPC board 24 and 24 with the key membrane switch 241 and 341, 34, and finally the FPC board 24, 34 transmits the signal to the main circuit board.

Referring to Figure 1, there are two main types of side keys on the mobile terminal, the volume key 2 (including the up and down keys) and the power key 3. The volume key 2 and the power key 3 can be placed adjacent to each other on the same side of the mobile terminal. However, when millimeter wave antenna module 1 is used on mobile terminals, to achieve the best performance, it is better to place multiple millimeter wave antenna modules 1 in different directions. Therefore, when the side keys are reused with millimeter wave antenna module 1, volume key 2 and power key 3 The effect will be better if it is placed on two sides.

Referring to Figure 1 and Figure 5 in conjunction, in one embodiment, the side button is a volume button 2, and the millimeter wave antenna module 1 is placed laterally in the hollow area of the button body 21 of the volume button 2. Two elastic The insulating block 23 is symmetrically arranged at the bottom of the key body 21 .

According to the length of the volume key of the current mobile terminal, in the embodiment of the present application, the three-dimensional length of the volume key can be slightly increased and the millimeter wave antenna module can be directly accommodated in the hollow area therein. In addition to the millimeter wave antenna on the outer surface of the key body 21 Except that the array panel 11 is made of non-shielding material (the non-shielding material area 211 of the outer layer of the key body forming the volume key), the rest can be made of shielding material (the outer shielding material area 212 of the key body forming the volume key), for example, it can be metal thin wall.

Referring to Figure 1, Figure 6, and Figure 7, in one embodiment, the side button is the power button 3, and the button body 31 includes a top button body 311 and a bottom button body 312 arranged in a boss structure. The bottom button body 311 is provided with a hollow area. The millimeter wave antenna module 1 is placed flatly in the hollow area of the bottom button body 311 of the power button 3 . An elastic insulating block 33 is provided at the bottom of the bottom button body 312 .

According to the length of the power-on key of the current mobile terminal, in the embodiment of the present application, the power-on key 3 adopts a boss structure. 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 button body 311 is made of non-shielding material in the area corresponding to the millimeter-wave antenna array panel (forming a local non-shielding material area 311b or an overall non-shielding material area 311c), such as a non-metallic material, with the lower part covering the millimeter-wave antenna array panel 11. The hollow area of the bottom button body 312 accommodates the millimeter wave antenna module 1, and the bottom surface layer is made of shielding material (such as thin metal walls) except for the millimeter wave antenna array panel 11 which is covered with non-shielding material (such as non-metallic material).

The size of the millimeter wave antenna module can currently be 21mm*3.5mm*C.6mm. This size makes it easy to reuse the side button and SIM card tray handle. However, because side buttons and SIM card trays are often used by users, there are still many considerations for the compatible layout of millimeter wave antenna modules and signal line extraction on them.

First of all, as far as the millimeter wave antenna module 1 is reused as a side button, since the volume button 2 and the power button 3 are quite different in length, they need to be placed in different ways.

The millimeter wave antenna module 1 is compatible with the volume button 2. Since the length of the volume button 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 button 2 is slightly extended in length and height. For example, if the length is 22mm and the height is 4mm, the button body 21 of the volume button 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 accommodated sideways in it (as shown in Figure 5). In this case, the hollow volume button 2 is equivalent to the fixed outer frame of the millimeter wave antenna module 1, but this fixed outer frame will move up and down depending on whether the user presses it with his hand.

In Figure 5, in addition to the area corresponding to the millimeter wave antenna array panel 11, the outer layer of the hollow button body 21 has a non-shielding material area 211, and the remaining outer layer is a shielding material (such as metal) area 212. The inside of the millimeter wave antenna module 1 can also be Including a high-strength PCB board, which can ensure sufficient strength to withstand user operations. The position of the first board-to-board connector 13 of the millimeter-wave antenna module 1 is at the corresponding position inside the hollow of the button body 21. There are other board-to-board connectors at corresponding positions. Pass the signal line 14 of the millimeter-wave antenna module 1 through the buckle of the volume key 2. The hollow hole or slot of the cantilever 22 is led out, and then connected to the circuit layer of the FPC board 24 with the dual-button membrane switch 241 welded on the surface through a soft shielded wire with redundant travel (the signal line 14 is detachably connected to the FPC board 24, to facilitate assembly and replacement of solid volume keys), and further passed to the main circuit board of the mobile terminal through the FPC board 24 (the FPC board shown in A1 in the figure is connected to the main circuit board). At the same time, when the user presses down the key body 21 of the volume key, pressure is exerted on the key membrane switch 241 through the two elastic insulating blocks 23 (such as silicone blocks) at the bottom of the key body 21, so that the key membrane switch 241 closes (i.e., the key membrane switch 241 The elastic dome is in contact with the contact point at the inner center), the key signal is in an on state and this state is transmitted to the main circuit board of the mobile terminal through the FPC board 24. Compared with the button body of the conventional volume button, the button body 21 in Figure 5 houses the millimeter wave antenna module 1 in a hollow space. The mass is increased, and the elasticity requirement of the button membrane switch 241 is increased to maintain the button body under normal conditions. 21 is in a state of being bounced by the key membrane switch 241 .

In Figure 5, since the millimeter wave antenna module 1 is placed sideways, the millimeter wave antenna array panel 11 needs to be in the default state (ie, the default state) and cannot be shielded from signals. Therefore, the millimeter wave antenna array panel 11 needs to face the metal middle frame. On the larger arc side of 6, if necessary, the local area of the metal middle frame 6 corresponding to the millimeter wave antenna array panel 11 can be filled with non-shielding material. Since the overall millimeter wave antenna array panel 11 has a small area, the local non-shielding material filling in the corresponding area of the metal middle frame 6 has a negligible impact on the appearance.

Referring to Figure 6 and Figure 7, the millimeter wave antenna module 1 is compatible with the power button 3. Since the current power button length of the mobile terminal is 10mm, which is not long enough to directly accommodate the millimeter wave antenna module, it is necessary to adjust the relative volume of the power button. More complex handling of keys. As shown in Figure 6, the power button 3 is built according to the boss structure and divided into upper and lower parts (which can be integrated or separated). The top button body 311 at the top is still 10mm long and 1mm wide. , the height is close to 2mm (that is, it must meet the protrusion of the metal middle frame 1mm, the partial covering layer of the metal middle frame 0.4mm, and the elastic stroke of the button body 0.4mm); the bottom button body 312 located at the bottom includes a hollow area, and its interior accommodates a flat lay The millimeter wave antenna module 1 has a height of 1mm (the illustration is to describe the internal structure, so it is not shown to scale), a width of 4mm, and a length of 22mm. In this way, the overall height of the key body 31 is close to 5 mm, which is higher and heavier than that of a conventional power button. Therefore, the key body 31 must be kept in a pop-up state, and the elasticity of the key membrane switch 341 must be increased accordingly. Millimeter wave antenna module 1 The signal line 14 is still led out through the hollow hole or groove of the snap cantilever 32 of the power button 3 to the FPC board 34 with the key membrane switch 341 welded (the signal line 14 connected to the FPC board 34 is detachable for easy assembly and replacement. Solid power button), 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 in A2 in the figure is connected to the main circuit board).

Except for the area corresponding to the millimeter wave antenna array panel 11, the bottom outer layer of the key body 31 of the power button is made of non-shielding material, and the rest is made of shielding material (such as metal). At the same time, the top of the button body 31 and the part of the metal middle frame 6 corresponding to the area of the millimeter-wave antenna array panel 11 are also non-shielded material areas (the shielding distance is not less than 1.5mm from the outer edge of the millimeter-wave antenna array), forming the top button body 311 The partial non-shielding material area 311b, the partial shielding material area 311a of the top button body 311 and the partial non-shielding material area 63 of the metal middle frame 6 ensure millimeter wave signal transmission and reception. However, the top button body 311 with a length of 1 mm is made of two materials, which has poor structural reliability, so it can be made of a plastic non-shielding material as a whole. At the same time, since the width of the millimeter wave antenna array panel 11 is wider than the width of the top button body 311 , the part of the metal middle frame 6 corresponding to the position of the top button body 311 of the millimeter wave antenna array panel 11 needs to be processed into a non-shielding material to form the metal middle frame 6 Local non-shielding material area 63.

Furthermore, since the metal middle frame 6 in FIG. 6 is partially processed so that the non-shielding material area 63 is very thin and the structural reliability is high, it can be further transformed into the way shown in FIG. 7 , that is, the top button body 311 covers the millimeter wave antenna array panel 11 The entire area of the top button body 311 is also made of non-shielding material. Figures 6 and 7 each have their own advantages. In Figure 6, because the top button body 311 does not cover the millimeter wave antenna array panel 11, the impact of the user's hand operation on the millimeter wave antenna module 1 will be relatively small. Figure 8 is a schematic longitudinal cross-sectional view of the volume key compatible with a millimeter-wave antenna module. Figure 9 is a schematic longitudinal cross-section of the power button compatible with a millimeter-wave antenna module. 6a represents the metal middle frame located on the side of the screen, and 6b represents the battery case. Metal frame on the side.

It should be noted that the above-mentioned way in which the volume key 2 and the power key 3 are compatible with the millimeter wave antenna module 1 is not fixed, and can be interchangeably adjusted according to the actual structural state of the mobile terminal or both solutions can be adopted.

Referring to FIGS. 10 to 13 , in one embodiment, the functional structure includes a card holder 5 and a card holder 4 , and the millimeter wave antenna module 1 is placed flatly on the handle end 41 of the card holder 4 . A card slot 42 can be provided between the handle end 41 of the card holder 4 and the card holder 5 .

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

The card placement area 51 is set to place a Subscriber Identity Module (SIM, Subscriber Identity Module); the push-push structure area 52 is set with a push-push structure, and the push-push structure is set to allow the card holder 4 to be inserted into or ejected from the card holder 4. Described deck 51. The structure of the card holder in the embodiment of the present application is a relatively common card holder structure in mobile terminals.

The millimeter wave antenna module 1 is compatible with the handle end 41 of the SIM card tray 4, as shown in Figure 10. In terms of size, the handle end of the currently common Nano SIM card holder for mobile terminals is 15mm long, 3mm wide, and 0.5mm thick. If the handle end of the card holder is to be hollow inside and accommodate the millimeter wave antenna module shown in Figure 2, the currently common Nano SIM card holder The dimensions need to be increased, with the width increased to 4mm and the thickness increased to 1mm to meet the demand, but in terms of length, the handle end 41 of the card holder excludes the ejector hole 43 area used to push the push-push structure. Only 12mm is reused for millimeter wave antenna module 1, and an additional 10mm needs to be added, which means that the final length of the handle end 41 of the card holder needs to be 25mm. At this time, the SIM card holder used in the embodiment of the present application needs to be customized. The size of the handle end 41 of the customized SIM card holder must meet the requirements. The middle part of the handle end 41 of the card holder is free to accommodate the millimeter wave antenna module 1. 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. However, the metal wall needs to leave an unshielded material area in the area of the millimeter wave antenna array panel 11 in the millimeter wave antenna module 1 to facilitate millimeter waves. Signal sending and receiving.

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

Since the push-push structure allows the card holder 4 to be inserted into or withdrawn from the card holder 5, the magnetic/probe type connector 7 can better cooperate with the push-push structure. When the holder 4 is inserted into the card holder 5, the magnetic/probe connector 7 can be connected to the signal line 14 of the millimeter-wave antenna module 1. The millimeter-wave antenna module 1 is in the working state. When the push-push structure makes the card holder 4 When exiting the card holder 5 , the magnetic/probe connector 7 can be easily disconnected from the signal line 14 of the millimeter wave antenna module 1 , and the millimeter wave antenna module 1 is in a non-working state.

Referring to Figure 11, Figure 11 is a schematic diagram of the ejection pin 81 working in the push-push structure and the magnetic/probe connector connection. The signal cable 14 with a slight stretch ability of the millimeter wave antenna module 1 is placed on the front end of the retractable , in the rigid sleeve of the magnetic/probe connector 7a on the card tray side, when the user pushes the push-push structure with the ejection pin 81 and inserts the card tray 4 into the card holder 5, the pin at the end of the ejection pin 81 moves along the transient state. The stroke 85 enters the self-locking channel 83 and temporarily stops at the transient parking position 84. The connector 7b or the probe-type connector 7b with the heteropolar magnetic ring 91 on the main circuit board 9 will remove the magnetic field on the card tray side. The suction connector is firmly sucked or the probe on the card holder side is passively compressed to achieve signal connection. When the user pushes the push-push structure again with the ejection pin 81, the card tray 4 will be ejected under the elastic force of the spring 82, and the magnetic suction/probe connector 7a on the card tray side will be disconnected and disconnected following the displacement of the card tray 4. Connection of the magnetic/probe connector 7b on the main circuit board side.

The signal line of the millimeter wave antenna module 1 is connected to the main circuit board through the magnetic/probe connector 7. There are two relatively easy-to-implement solutions, which are introduced as follows:

Referring to FIG. 10 , in one embodiment, the magnetic/probe connector 7 is disposed in the middle area between the card placement area 51 and the push-push structure area 52 and has the ability to reach all locations. The preset length of the main circuit board; the card tray 4 is provided with a hollow hole or a groove inside, and the position of the hollow hole or groove corresponds to the position of the middle area. The millimeter-wave antenna module 1 also includes a first board-to-board connector 11 , which faces the inside of the handle end 41 of the card holder 4 and whose position is consistent with the position of the middle area. Correspondingly; the signal line of the first board-to-board connector 11 is introduced into the signal cable through other board-to-board connectors, and the signal cable enters the card holder 5 through the hollow hole or slot inside the card holder 4 The magnetic suction/probe type connector 7 inside is connected to the adapter connector of the main circuit board on the outside of the card holder 7 through the magnetic suction/probe type connector 7 .

In the embodiment of this application, in order to ensure that the signal of the millimeter wave antenna module 1 is transmitted to the main circuit board, hollow holes or slots are reserved inside the card tray 4 for routing signal cables that require strict impedance matching, and the card tray 4 Corresponding to the position of the hollow hole or slot at the tail, add a magnetic/probe connector 7 of sufficient length in the card holder 5 (it is easier to separate than the board-to-board connector). At the same time, the magnetic/probe connector 7 Ensure that there is reliable impedance matching that can pass millimeter wave intermediate frequency signals (which are still high-frequency signals in nature, and a corresponding millimeter wave signal wiring impedance control area 53 is formed in the middle area of the card holder), and the card can be inserted into the card tray 4 The magnetic/probe connector 7 at the rear of the card tray of the base 5 can be reliably connected to the adapter connector of the main circuit board.

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 tray 4, and its first board-to-board connector 13 faces the inside of the handle end 41 of the card tray 4 and passes through other adapted boards to boards. The connector introduces the signal of the millimeter wave antenna module 1 into the shielded signal cable in the hollow hole or slot inside the card tray. The signal cable contains the millimeter wave intermediate frequency IQ signal and must be subject to strict impedance control.

Referring to FIG. 12 , in one embodiment, the magnetic/probe connector 7 is provided on the metal middle frame 6 ; the metal middle frame 6 is also provided with a through hole 64 . The millimeter wave antenna module 1 also includes a first board-to-board connector 13 . The first board-to-board connector 13 faces the inside of the handle end 41 of the card holder 4 and is located between the card holder 5 and the card holder 5 . Corresponding to the outer area; the signal line of the first board-to-board connector 13 is introduced into the signal cable through other board-to-board connectors and the magnetic/probe connector 7, and the signal cable is introduced from the The through hole 64 of the metal middle frame 6 passes through and is connected to the adapter connection of the main circuit board. 92 (e.g. board-to-board connector).

The SIM card tray with a millimeter-wave antenna module shown in Figure 10 requires a reserved gap in the card holder to facilitate the passage of the magnetic/probe connector. If the card holder does not have a reserved gap, the processing in Figure 12 can be used. Method: that is, the first board-to-board connector 11 of the millimeter wave antenna module 1 on the card tray 4 is adapted to other board-to-board connectors with double-sided signal connections. When the card tray 4 is inserted into the card holder 5, the double-sided Other board-to-board connectors for signal connections can be reliably connected by the magnetic/probe connectors 7 placed at corresponding positions on the metal middle frame 6, and then the signal cables terminated with the magnetic/probe connectors 7 can be connected from The through hole 64 of the metal middle frame 6 passes through the main circuit board and is plugged into the adapter connector 92 (for example, a board-to-board connector) of the main circuit board to realize the circuit connection between the millimeter wave antenna module signal and the main circuit board.

In an embodiment, the signal of the millimeter wave antenna module can 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 one embodiment, the second card placement area is leveled, and corresponding signals derived from the millimeter wave antenna module are introduced to the surface of the leveled second card placement area, and then pass through the leveled surface. The surface of the second card placement area is directly in contact with the elastic pins of the card holder corresponding to each signal, and the signals of the millimeter wave antenna module are introduced to the main circuit board through the card holder.

For a SIM card holder with a millimeter wave antenna module, the signal of the millimeter wave antenna module can also be extracted from the SIM card placement area of the card holder. That is, the SIM card placement area on one side of the double-sided SIM card holder is used to recess the side. The SIM card placement area is leveled. The leveled surface is distributed with the corresponding signals derived from the signals of the millimeter wave antenna module inside the SIM card holder. At this time, the leveled surface can be directly connected to the corresponding signals of the card holder. The shrapnel pins of the signal are in contact, thereby introducing the signal of the millimeter wave antenna module to the main circuit board through the card holder (as shown in Table 1).

The SIM card holder shrapnel usually has 6 signal definitions (respectively GND, power, clock, reset, programming voltage, data input/output) to meet the signal multiplexing requirements of the millimeter wave antenna module (respectively GND, power, intermediate frequency differential signal Right, power voltage, power enable), as shown in Table 1. In this way, the millimeter-wave intermediate frequency signal may have impedance mismatch or poor shielding on the shrapnel pins of the card holder. This can be solved by electromagnetic compatibility means such as wrapping the card holder with shielding material and adjusting circuit impedance matching.

Table 1 Comparison table of signal multiplexing definitions for SIM cards and millimeter wave antenna modules

It is also not necessary to use the method of filling up the groove in the SIM card placement area. Referring to Figure 13, in one embodiment, the mobile terminal further includes a dedicated signal bridging card, and the dedicated signal bridging card is placed on the second card. Placement area 51, the signal bridging special card is provided with signal contact areas on both sides; the card holder is provided with slightly protruding spring pieces; the corresponding signals derived from the millimeter wave antenna module pass through each of the slightly protruding spring pieces It is introduced into the signal contact area on one side of the signal bridging card, and then passes through the signal contact area on the other side of the signal bridging card to contact the elastic pins of the card holder corresponding to each signal, and then passes through The card holder introduces the signal of the millimeter wave antenna module to the main circuit board.

Referring to Figures 14-16, in one embodiment, the second card placement area 51 can also be placed with another user identification card; the main circuit board also includes: a universal analog switch device and a broadband analog switch device .

The universal analog switch device is configured to control switching between the power supply of the other user identification card and the signal bridging dedicated card, and to control the reset signal of the other user identification card and the signal bridging dedicated card. Toggles between the card's power enable signals.

The broadband analog switch device is configured to control switching between the data signal of the other user identification card and the intermediate frequency signal differential positive of the signal bridging dedicated card, and to control the clock signal of the other user identification card and the Signal bridging dedicated card for switching between differential and negative IF signals.

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

The specific hardware circuit connection block diagram is shown in Figure 14: According to Figure 14, the specific identification process of the system processor is as follows:

In the first step, because the VPP of the SIM card is floating, the system processor performs impedance identification according to the default state (that is, the default state) of the signal pin of the card holder being floating;

In the second step, when the special signal bridge card of the millimeter-wave antenna module with signal contact areas on both sides is filled into the SIM card placement area, the system processor recognizes the change in the pin impedance and immediately activates the broadband analog switch device and the universal analog switch. Device switching;

In the third step, the general analog switch device and the broadband analog switch device switch the SIM card signal channel in the default state to the signal channel of the millimeter wave antenna module to bridge the signal channel of the dedicated card to achieve millimeter wave communication.

The analog switch in Figure 14 can be a double-pole double-throw analog switch. The specific hardware circuit connection block diagram is shown in Figures 15 and 16.

The above only illustrates the dimensions of commercially available millimeter wave antenna modules. In fact, millimeter wave antenna modules can also be customized. After customization, the first board-to-board connector can be removed. The signal can be directly extracted through the circular micro-cluster cable jack that takes up less space, and the length scale can be controlled within 15mm, which can be better applied to the handle end of the SIM card tray and the power button, and can realize the SIM card The support, power button and general specifications are compatible.

The millimeter-wave antenna module is reused at the side button and SIM card tray. In addition to replacing it with a solid module for easy addition and removal, it can also easily realize flexible configuration of mobile terminals according to different market frequency band requirements. Areas that need to be changed can be directly replaced with internal ones. The side button or SIM card tray that accommodates the frequency-changed millimeter wave antenna module.

It should be understood that the terminology used in the specification of the present 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, but the scope of rights of the present application is not thereby limited. Any modifications, equivalent substitutions and improvements made by those skilled in the art without departing from the scope and essence of this application shall be within the scope of rights of this application.

Claims

A mobile terminal includes a functional structure, the functional structure is arranged on the side of the mobile terminal, wherein the mobile terminal further includes:

A millimeter wave antenna module is arranged in the functional structure. The millimeter wave antenna module includes a millimeter wave antenna array panel, a modem and a power integrated circuit chip. The area corresponding to the millimeter wave antenna array panel is a clearance area. The signal from the wave antenna module is transmitted to the main circuit board of the mobile terminal.
The mobile terminal according to claim 1, wherein the mobile terminal further includes a metal middle frame provided on a side of the mobile terminal, the metal middle frame is provided with an opening, and the functional structure penetrates the opening.
The mobile terminal according to claim 2, wherein the functional structure includes a speaker sound hole, the millimeter wave antenna module is placed inside the speaker sound hole, and the millimeter wave antenna array panel is positioned facing The position of the non-shielded window of the speaker sound hole will not affect the sound output of the speaker after the millimeter wave antenna module is placed inside the speaker sound hole.
The mobile terminal of claim 2, wherein the functional structure includes side keys.
The mobile terminal according to claim 4, wherein the side keys include:

The key body protrudes through the opening from the metal middle frame of the mobile terminal and is configured to be pressed. A hollow area is provided inside the key body, and the millimeter wave antenna module is placed in the hollow area;

One end of the buckle cantilever is connected to the bottom of the key body, and the other end is buckled to the metal middle frame. There is a hollow hole or groove inside the buckle cantilever;

An elastic insulating block is provided at the bottom of the key body;

The mobile terminal also includes:

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

When the key body is pressed, the elastic insulating block squeezes the key membrane switch and generates a key signal that the key membrane switch closes. The key signal can be transmitted to the main circuit through the flexible circuit board. board; the signal line of the millimeter wave antenna module is connected to the flexible circuit board through the hollow hole or slot of the snap cantilever, and is connected to the main circuit board through the flexible circuit board.
The mobile terminal according to claim 5, wherein,

The side button is a volume button, and the millimeter wave antenna module is placed sideways in the hollow area of the button body of the volume button;

Alternatively, the side button is a power-on button, the button body includes a top button body and a bottom button body arranged in a boss structure, the bottom button body is provided with a hollow area, and the millimeter wave antenna module is placed flat on the The hollow area of the button body at the bottom of the power button.
The mobile terminal according to claim 2, wherein the functional structure includes a card holder and a card holder, and the millimeter wave antenna module is placed flatly on the handle end of the card holder.
The mobile terminal according to claim 7, wherein the card holder includes:

The card placement area is set to place user identification cards;

The push-push structure area is provided with a push-push structure, and the push-push structure is configured to enable the card holder to be inserted into or withdrawn from the card holder.
The mobile terminal according to claim 8, wherein the mobile terminal further includes a magnetic suction/probe type connector, and the signal line of the millimeter wave antenna module is connected to the magnetic suction/probe type connector through the magnetic suction/probe type connector. Describe the main circuit board.
The mobile terminal according to claim 9, wherein,

The magnetic/probe connector is disposed in the middle area between the card placement area and the push-push structure area, and has a preset length that can reach the main circuit board; the card tray A hollow hole or groove is provided inside, and the position of the hollow hole or groove corresponds to the position of the middle region;

The millimeter-wave antenna module also includes a first board-to-board connector, the first board-to-board connector faces the inside of the handle end of the card holder, and its position corresponds to the position of the middle area; The signal line of one board-to-board connector is introduced into the signal cable through other board-to-board connectors, and the signal cable enters the magnetic suction/probe type in the card holder through the hollow hole or slot inside the card holder. connector, and is connected to the adapter connector of the main circuit board on the outside of the card holder through the magnetic/probe connector;

or,

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

The millimeter wave antenna module further includes a first board-to-board connector, the first board-to-board connector faces the inside of the handle end of the card holder, and its position corresponds to the area outside the card holder; The signal line of the first board-to-board connector is introduced into the signal cable through other board-to-board connectors and the magnetic/probe connector, and the signal cable passes through the through hole of the metal middle frame. and connect to the adapter connector of the main circuit board.
The mobile terminal according to claim 8, wherein 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 into the card holder through the second card placement area. The main circuit board.
The mobile terminal according to claim 11, wherein,

The second card placement area is leveled, and the corresponding signals derived from the millimeter wave antenna module are introduced to the surface of the leveled second card placement area, and then pass through the surface of the leveled second card placement area. The surface is directly in contact with the elastic pins of the card holder corresponding to each signal, and the signals of the millimeter wave antenna module are introduced to the main circuit board through the card holder;

or,

The mobile terminal also includes a dedicated signal bridging card. The dedicated signal bridging card is placed in the second card placement area. Signal contact areas are provided on both sides of the dedicated signal bridging card; the card holder is provided with There are slight protruding spring pieces; the corresponding signals derived from the millimeter wave antenna module are introduced to the signal contact area on one side of the signal bridging card through each of the slightly protruding spring pieces, and then pass through the signal bridging card. The signal contact area on the other side is in contact with the elastic pins of the card holder corresponding to each signal, and then the signals of the millimeter wave antenna module are introduced to the main circuit board through the card holder.
The mobile terminal according to claim 12, wherein the second card placement area can also be placed with another user identification card;

The main circuit board also includes:

A universal analog switch device configured to control switching between the power supply of the other user identification card and the power supply of the signal bridging dedicated card, and to control the reset signal of the other user identification card and the signal bridging. Switching between power enable signals of dedicated cards;

A broadband analog switch device is configured to control switching between the data signal of the other user identification card and the intermediate frequency signal differential positive of the signal bridging dedicated card, and to control the clock signal of the other user identification card and the Switching between the differential and negative IF signals of the above-mentioned signal bridging special card;

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