WO2019096085A1

WO2019096085A1 - Mobile terminal

Info

Publication number: WO2019096085A1
Application number: PCT/CN2018/115002
Authority: WO
Inventors: 王义金; 黄奂衢; 简宪静
Original assignee: 维沃移动通信有限公司
Priority date: 2017-11-15
Filing date: 2018-11-12
Publication date: 2019-05-23
Also published as: CN107707702A

Abstract

The present invention provides a mobile terminal, comprising: a system ground; a GNSS antenna, the GNSS antenna being provided on one end of the system ground and connected to the system ground; and at least one parasitic metal arm, each parasitic metal arm being connected to the system ground, the at least one parasitic metal arm being provided on a first side and/or a second side of the system ground, and the first side and the second side being located on opposite sides of one end of the system ground.

Description

Mobile terminal

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. 201711132360.7, filed on Jan.

Technical field

The present disclosure relates to the technical field of communication applications, and in particular, to a mobile terminal.

Background technique

Due to the increasing popularity of intelligent mobile terminals, users are increasingly demanding navigation path planning. Therefore, the positioning and navigation functions on smart mobile terminals have become standard system configurations, while the positioning and navigation functions are good. Badness often affects the user's satisfaction with the mobile terminal, so the positioning and navigation function performance in the mobile terminal is increasingly concerned by the terminal design vendor. Global Navigation Satellite System (GNSS) satellites in space, such as Global Positioning System (GPS), GLONASS Glonass, BeiDou Navigation Satellite System (BDS), and Galileo positioning system Galileo is often used as a common source of navigation and navigation. The signals of these positioning and navigation are basically from the sky. Therefore, how to direct the radiation pattern of the antenna in the mobile terminal toward the sky (make the main beam direction toward the wireless The signal source of communication) to improve the reception performance, resulting in better wireless communication quality and user experience, has long been an important topic for mobile terminal antenna designers.

To measure the quality of a GPS/GNSS antenna, it is often necessary to measure the sensitivity of the air interface in a microwave darkroom, such as: Total Isotropic Sensitivity (TIS, theta: 0-180°; Φ: 0-360°) Upper Hemisphere Isotropic Sensitivity (UHIS, theta: 0 ~ 90 °; Φ: 0 ~ 360 °) and other indicators;

At present, most mobile phones or terminals have GPS/GNSS positioning functions, and the trend of full-screen mobile phones is becoming more and more mainstream, leaving the environment of GPS/GNSS antennas worse, and antenna technology solutions in traditional or related technologies. It is also often difficult to achieve a better radiation pattern of the antenna. Therefore, the UHIS of the GPS/GNSS antenna of most handheld mobile terminals (such as mobile phones) in the conventional or related art is generally poor, that is, many handheld mobile terminals (such as mobile phones) at present. The main proportion of the radiation pattern of the internal GPS/GNSS antenna is often not distributed or directed toward the sky direction on the top of the whole machine. Conversely, it is often distributed or oriented toward the bottom of the mobile phone, so the signal reception effect is often less than ideal ( Because the source of the signal is satellite, and the satellite is located in the sky, non-ground), reducing signal reception performance, wireless communication quality, user wireless experience, and product competitiveness.

Summary of the invention

The present disclosure provides a mobile terminal, including:

Systematically;

a global navigation satellite system GNSS antenna, the GNSS antenna being disposed at one end of the system ground and connected to the system;

At least one parasitic metal arm, each of the parasitic metal arms being coupled to the system, the at least one parasitic metal arm being disposed on a first side and/or a second side of the system ground, the first The side edges and the second side edges are located on opposite sides of one end of the system ground.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings used in the embodiments or the related art description will be briefly described below. It is obvious that the drawings in the following description are only some implementations of the present disclosure. For example, other drawings may be obtained from those skilled in the art based on these drawings without paying for inventive labor.

1 is a first connection diagram of two buttons FPC and a system ground according to an embodiment of the present disclosure;

2 is a schematic view showing the position of a button FPC and a system ground according to an embodiment of the present disclosure;

3 is a radiation directivity diagram of a GNSS antenna when a mobile terminal performs a simulation test in the related art;

4 is a radiation directivity diagram of a GNSS antenna when a mobile terminal performs a simulation test according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of a second connection between two buttons FPC and a system ground according to an embodiment of the present disclosure; FIG.

6a is a schematic diagram of a third connection between two buttons FPC and a system ground according to an embodiment of the present disclosure;

6b is a schematic diagram of a fourth connection between two buttons FPC and a system ground according to an embodiment of the present disclosure;

7a is a fifth connection diagram of two buttons FPC and a system ground according to an embodiment of the present disclosure;

7b is a sixth connection diagram of two buttons FPC and a system ground according to an embodiment of the present disclosure;

8a is a schematic diagram of a seventh connection between two buttons FPC and a system ground according to an embodiment of the present disclosure;

8b is a schematic diagram of an eighth connection between two buttons FPC and a system ground according to an embodiment of the present disclosure;

9a is a schematic diagram of a first connection of a button FPC and a system ground according to an embodiment of the present disclosure;

9b is a schematic diagram of a second connection of a button FPC and a system ground according to an embodiment of the present disclosure;

10a is a schematic diagram of a third connection of a button FPC and a system ground according to an embodiment of the present disclosure;

FIG. 10b is a schematic diagram of a fourth connection of a button FPC and a system ground according to an embodiment of the present disclosure; FIG.

11a is a fifth connection diagram of a button FPC and a system ground according to an embodiment of the present disclosure;

FIG. 11b is a sixth connection diagram of a button FPC and a system ground according to an embodiment of the present disclosure.

Detailed ways

The technical solutions in the embodiments of the present disclosure are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present disclosure. It is obvious that the described embodiments are a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without departing from the inventive scope are the scope of the disclosure.

Embodiments of the present disclosure provide a mobile terminal, including: a system ground; a global navigation satellite system GNSS antenna, the GNSS antenna being disposed at one end of the system ground and connected to the system; at least one parasitic metal arm Each of the parasitic metal arms is coupled to the system, the at least one parasitic metal arm being disposed on a first side and/or a second side of the system ground, the first side and the The second side is located on opposite sides of one end of the system ground.

As shown in FIG. 1, the above system ground 1 is specifically a ground of a mobile terminal, such as a main board of a mobile terminal or a middle shell structure of a host board. The GNSS antenna 31 is disposed at the top end of the system ground 1 , and the antenna ground end 32 of the GNSS antenna 31 is connected to the system ground 1 , and the GNSS antenna signal feeding end 33 is connected to the system ground 1; the parasitic metal arm may be specifically The FPC of the volume button of the mobile terminal or the FPC of the power button.

The mobile terminal of the embodiment of the present disclosure changes the radiation direction of the GNSS antenna of the mobile terminal by setting a parasitic metal arm connected to the system terminal of the mobile terminal, so that the main beam of the GNSS antenna is located in the upper hemisphere of the mobile phone or pointing to the sky, that is, toward the wireless The signal source of communication, thereby improving signal reception performance, wireless communication quality, user wireless experience, and product competitiveness.

Further, each of the parasitic metal arms is disposed in parallel with the first side or the second side of the system ground, and a predetermined distance exists from the system ground.

Wherein, the distance between the different parasitic metal arms and the system ground may be the same or different.

Optionally, the parasitic metal arm includes: a button flexible circuit board FPC of the mobile terminal, the button FPC includes a ground wire, and the button FPC is connected to the system ground through the ground wire.

The button FPC can be specifically an FPC of a volume button or a power button, and the button FPC is internally provided with a corresponding function circuit, including a signal line and a ground line, wherein the ground line is connected to the above system ground.

The mobile terminal of the embodiment of the present disclosure achieves the integrated dual function design by using the button FPC in the related art of the mobile terminal, and can improve the radiation direction of the GNSS antenna, and also save the space, cost and design complexity of the mobile terminal. .

Further, the mobile terminal of the embodiment of the present disclosure includes:

Two buttons FPC, two of which are respectively disposed on the first side and the second side of the system ground.

Specifically, the width of the ground of each button FPC is less than or equal to the width W of the button FPC, and the length of the ground line is less than or equal to the length of the button FPC, which may be a single layer or a multi-layer design.

As an optional implementation manner, as shown in FIG. 1 , the grounding of the first button flexible circuit board 21 of the two buttons FPC is systematically connected to the first button FPC away from the GNSS antenna. The first end of the 31, the ground of the second button flexible circuit board 22 of the two buttons FPC is systematically connected to the first end of the second button FPC away from the GNSS antenna 31.

As shown in FIG. 1, the distance between the edges of the two button FPCs is L1 and L2, respectively, and the lengths of the buttons FPC are L3 and L4, as shown in FIG. 2, the width W1 of the first button FPC and The width W2 of the second button FPC is convenient for the identification of the view. Here, the width of the button FPC is W, which may be the width W1 of the first button FPC or the width W2 of the second button FPC. Optionally, L1 and L2 are respectively less than or equal to one waveguide wavelength, and L1 and L2 may be the same or different, and L3 and L4 are respectively less than or equal to one waveguide wavelength, and L3 and L4 may be the same or different, and W1 and W2 may alternatively be 0.01 mm to 10 mm, and similarly, W1 and W2 may be the same or different. And this button FPC can be designed on the x-y plane, can also be designed on the y-z plane, or in other spaces.

As shown in FIG. 2, on the y-z plane, the button FPC needs to have a certain distance H from the system ground, and the distance between the two buttons FPC from the system ground may not be equal, and the size of the spacing is not specifically limited.

In this implementation manner, the ground line is disposed at the end of the button FPC near the lower part of the system ground and is connected to the system ground, and the length L of the button FPC can be appropriately adjusted according to the design situation, so that the upper hemisphere of the GNSS antenna is better. performance.

In a specific embodiment of the present disclosure, the mobile phone of the button FPC in the embodiment of the present disclosure is not increased. When performing the simulation test, the main beam of the radiation directivity pattern mainly points to the bottom of the whole machine, as shown in FIG. 3, The phone with the FPC button is added. When the simulation test is performed, after adjusting the ground line of the button FPC to the appropriate length, the main beam of the radiation pattern is mainly directed to the top of the whole machine. For details, see Figure 4. Significantly improve the performance of the GPS antenna's upper hemisphere (UHIS), thereby improving the user's positioning or navigation experience.

As another alternative implementation manner, as shown in FIG. 5, a position where the ground of the first button flexible circuit board 21 of the two buttons FPC is systematically connected is located at the first button FPC near the GNSS. The second end of the antenna, the ground connection of the second button flexible circuit board 22 of the two buttons FPC and the system ground is located at the second end of the second button FPC near the GNSS antenna.

In this implementation, the positional priority connection position of the two buttons FPC and the system ground is set at the end of the button FPC, close to the upper area of the system ground, and the length of the button FPC can be appropriately adjusted according to the design situation, so that Excellent performance in the upper hemisphere of the GNSS antenna.

As a further alternative implementation, as shown in FIG. 6a, the ground connection of the first button flexible circuit board 21 of the two buttons FPC is systematically connected to the first button FPC away from the GNSS. At a first end of the antenna, a ground connection of the ground of the second button flexible circuit board 22 of the two buttons FPC to the system is located at a second end of the second button FPC near the GNSS antenna.

As shown in FIG. 6b, the grounding of the first button flexible circuit board 21 of the two buttons FPC is systematically connected to the second end of the first button FPC near the GNSS antenna, and the two The grounding of the second button flexible circuit board 22 in the button FPC is systematically connected to the first end of the second button FPC away from the GNSS antenna.

In this implementation manner, a button FPC preferential connection position is set at one end of the upper region position near the system ground, and a button FPC preferential connection position is disposed at one end of the lower region position of the system ground, and the length of the two buttons FPC Appropriate adjustments can be made to the visual design situation to achieve superior performance in the upper hemisphere of the GNSS antenna.

As another optional implementation manner, as shown in FIG. 7a and FIG. 8b, a position where the ground of the first button flexible circuit board 21 of the two buttons FPC is systematically connected is located at the first button FPC. Between one end and the second end, a position where the ground of the second button flexible circuit board 22 of the two buttons FPC is systematically connected is located at or close to the first end of the second button FPC away from the GNSS antenna a second end of the GNSS antenna;

The first end of the first button FPC refers to an end of the first button FPC away from the GNSS antenna, and the second end of the first button FPC refers to the first button FPC is close to the GNSS One end of the antenna.

As shown in FIGS. 7b and 8a, the ground of the first button flexible circuit board 21 of the two buttons FPC is systematically connected to the first button FPC away from the first end of the GNSS antenna or close to the The second end of the GNSS antenna; the ground of the second button flexible circuit board 22 of the two buttons FPC is systematically connected between the first end and the second end of the second button FPC.

In this implementation manner, one button FPC is grounded at any position in the middle, and the other button FPC is grounded near the upper region or the lower region of the system ground, and the length of the button FPC can be appropriately adjusted according to the design situation to facilitate the upper hemisphere of the GNSS antenna. Better performance.

Further, the mobile terminal includes:

A button FPC, one of the buttons FPC is disposed on the first side or the second side of the system ground.

a grounding point of the button FPC is systematically connected to a first end, a second end of the button FPC or between the first end and the second end;

The first end of the button FPC refers to an end of the button FPC away from the GNSS antenna, and the second end of the button FPC refers to an end of the button FPC near the GNSS antenna.

Specifically, as shown in FIG. 9a, one of the button flexible circuit boards 2 is disposed on a first side of the system ground, and is connected to the system end away from the first end of the GNSS antenna; as shown in FIG. 9b, The button flexible circuit board 2 is disposed on the second side of the system ground, and is connected to the system ground away from the first end of the GNSS antenna; as shown in FIG. 10a, one of the button flexible circuit boards 2 is disposed at a system ground a first side, and a second end adjacent to the GNSS antenna is connected to the system ground; as shown in FIG. 10b, one of the button flexible circuit boards 2 is disposed on a second side of the system ground, and is adjacent to the GNSS antenna The second end is connected to the system ground. As shown in FIG. 11a, one of the button flexible circuit boards 2 is disposed on the first side of the system ground, and the intermediate position of the button flexible circuit board 2 is connected to the system ground; As shown in Fig. 11b, one of the key flexible circuit boards 2 is disposed on the second side of the system ground, and the intermediate position of the key flexible circuit board 2 is systematically connected.

The mobile terminal of the embodiment of the present disclosure does not require additional electrical components to change the radiation direction of the GNSS antenna, thereby saving space and cost of the product, and reducing design complexity, thereby increasing the overall competitiveness of the product.

In addition, the present disclosure can be applied to wireless inter-city WMAN, wireless wide area network WWAN, wireless local area network WLAN, wireless personal network WPAN, multiple input multiple output MIMO, radio frequency identification RFID, and even near field communication NFC or wireless charging. Wireless communication design and application such as WPC.

The mobile terminal includes at least one of a mobile phone, a tablet computer, an e-book reader, an MP3 player, an MP4 player, a digital camera, a laptop portable computer, a car computer, a desktop computer, a set top box, a smart TV, and a wearable device. item.

The above description is only for the preferred embodiment of the present disclosure, and is not intended to limit the disclosure, and any modifications, equivalents, improvements, etc., made within the spirit and principles of the present disclosure are included in the present disclosure. Within the scope of protection.

The various embodiments in the present specification are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same similar parts between the various embodiments can be referred to each other.

While the preferred embodiment of the embodiments of the present invention has been described, it will be apparent that those skilled in the art can make further changes and modifications to the embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and

Finally, it should also be noted that in this context, relational terms such as first and second are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these entities. There is any such actual relationship or order between operations. Furthermore, the terms "comprises" or "comprising" or "comprising" or any other variations are intended to encompass a non-exclusive inclusion, such that a process, method, article, or terminal device that includes a plurality of elements includes not only those elements but also Other elements that are included, or include elements inherent to such a process, method, article, or terminal device. An element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or terminal device that comprises the element, without further limitation.

Claims

A mobile terminal includes:

Systematically;

a global navigation satellite system GNSS antenna, the GNSS antenna being disposed at one end of the system ground and connected to the system;

At least one parasitic metal arm, each of the parasitic metal arms being coupled to the system, the at least one parasitic metal arm being disposed on a first side and/or a second side of the system ground, the first The side edges and the second side edges are located on opposite sides of one end of the system ground.
The mobile terminal of claim 1, wherein each of said parasitic metal arms is disposed in parallel with a first side or a second side of said system ground and a predetermined distance from said system ground.
The mobile terminal of claim 1, wherein the parasitic metal arm comprises: a button flexible circuit board FPC of the mobile terminal, the button FPC comprises a ground line, and the button FPC passes the ground line and the system ground connection.
The mobile terminal of claim 3, further comprising:

Two buttons FPC, two of which are respectively disposed on the first side and the second side of the system ground.
The mobile terminal according to claim 4, wherein a position where the ground of the first button FPC of the two buttons FPC is systematically connected is located at a first end of the first button FPC away from the GNSS antenna, two The ground connection of the second button FPC of the button FPC to the system ground is located at a first end of the second button FPC away from the GNSS antenna.
The mobile terminal according to claim 4, wherein a position where the ground of the first button FPC of the two buttons FPC is systematically connected is located at a second end of the first button FPC near the GNSS antenna, A position at which the ground of the second button FPC of the button FPC is systematically connected is located at a second end of the second button FPC near the GNSS antenna.
The mobile terminal according to claim 4, wherein a position where the ground of the first button FPC of the two buttons FPC is systematically connected is located at a first end of the first button FPC away from the GNSS antenna, two A position at which the ground of the second button FPC of the button FPC is systematically connected is located at a second end of the second button FPC near the GNSS antenna.
The mobile terminal according to claim 4, wherein a position where the ground of the first button FPC of the two buttons FPC is systematically connected is located between the first end and the second end of the first button FPC. a position at which the ground of the second button FPC of the two buttons FPC is systematically connected is located at a first end of the second button FPC away from the GNSS antenna or near a second end of the GNSS antenna;

The first end of the first button FPC refers to an end of the first button FPC away from the GNSS antenna, and the second end of the first button FPC refers to the first button FPC is close to the GNSS One end of the antenna.
The mobile terminal of claim 3, further comprising:

A button FPC is disposed on the first side or the second side of the system ground.
The mobile terminal according to claim 9, wherein a position at which the ground of the button FPC is systematically connected is located at a first end, a second end of the button FPC or at the first end and the second Between the ends;

The first end of the button FPC refers to an end of the button FPC away from the GNSS antenna, and the second end of the button FPC refers to an end of the button FPC near the GNSS antenna.