Antenna and mobile terminal

Abstract

This application relates to the field of antenna technology, and specifically discloses an antenna and a mobile terminal. The antenna is applied to the mobile terminal, which includes a metal casing. The antenna includes a bracket, a radiating module, and a conductive connection component. The bracket is at least partially housed within the metal casing and has adjacent first and second mounting surfaces. The first mounting surface is exposed outside the metal casing, and a gap exists between the second mounting surface and the metal casing. The radiating module is mounted on the bracket and includes an impedance matching region, a low-frequency radiation region, and a high-frequency radiation region. The impedance matching region is located on the first mounting surface and is used to adjust the matching degree between the high-frequency and low-frequency radiation regions. The low-frequency and high-frequency radiation regions are located opposite each other on the second mounting surface. The conductive connection component connects the radiating module and the metal casing. This structure improves the stability of network signal connections in all-metal laptops and expands the range of network signal operating frequency bands.

Description

Technical Field

[0001] This application relates to the field of antenna technology, and in particular to an antenna and a mobile terminal. Background Technology

[0002] As society's demands for both aesthetics and performance in laptops continue to rise, all-metal laptops, with their premium feel, durability, and excellent heat dissipation, are gradually becoming the preferred choice for consumers. However, while the all-metal chassis enhances the overall quality of the device, it also brings some issues that cannot be ignored.

[0003] In the process of developing this application, the inventors discovered that the material of all-metal laptops makes their antenna signal reception susceptible to interference, and there is an urgent need for a new structure to improve the stability of laptop network signal connection and to expand the network signal operating frequency band. Utility Model Content

[0004] This application provides an antenna and a mobile terminal that can improve the current situation of poor network signal connection stability and limited network signal operating frequency range of all-metal laptops.

[0005] To solve the above-mentioned technical problems, this application adopts the following technical solution: An antenna is provided for use in a mobile terminal. The mobile terminal includes a metal casing, and the antenna includes a bracket, a radiating module, and a conductive connection component. The bracket is at least partially housed within the metal casing. The bracket has adjacent first and second mounting surfaces. The first mounting surface is exposed outside the metal casing, and a gap exists between the second mounting surface and the metal casing. The radiating module is printed on the bracket and includes an impedance matching region, a low-frequency radiation region, and a high-frequency radiation region. The impedance matching region is located on the first mounting surface and is used to adjust the matching degree between the high-frequency radiation region and the low-frequency radiation region. The low-frequency radiation region and the high-frequency radiation region are disposed opposite each other on the second mounting surface. The low-frequency radiation region is used to receive or transmit low-frequency signals, and the high-frequency radiation region is used to receive or transmit high-frequency signals. The conductive connection component connects the radiating module and the metal casing.

[0006] In one or more embodiments, the radiation module includes a coaxial cable printed on the bracket, the coaxial cable being bent at the first mounting surface to form the impedance matching region, and the coaxial cable branching at the second mounting surface to form the high-frequency radiation region and the low-frequency radiation region.

[0007] In one or more embodiments, the bracket further has adjacent third and fourth mounting surfaces, the third mounting surface being opposite to the second mounting surface, the fourth mounting surface being opposite to the first mounting surface, and the third mounting surface being adjacent to the first mounting surface. The radiation module further includes a first connection area and a second connection area, the coaxial cable being printed on the third mounting surface to form the first connection area, the coaxial cable being printed on the fourth mounting surface to form the second connection area, and both the low-frequency radiation area and the high-frequency radiation area being disconnected from the second connection area.

[0008] In one or more embodiments, the conductive connection assembly includes a first conductive element and a second conductive element. One end of the first conductive element is connected to at least a portion of the first connection area and the coaxial cable at the first mounting surface, and the other end of the first conductive element is connected to the metal housing. One end of the second conductive element is connected to the second connection area, and the other end of the second conductive element is connected to the metal housing.

[0009] In one or more embodiments, the coaxial cable is provided with a grounding portion located on the first mounting surface, the grounding portion is disposed near the third mounting surface and connected to the first conductive element, and the grounding portion is used for grounding.

[0010] In one or more embodiments, the coaxial cable is provided with a power supply section located on the first mounting surface, the power supply section is disposed near the fourth mounting surface, and the power supply section is connected to the high-frequency radiation region.

[0011] To solve the aforementioned technical problems, another technical solution adopted in this application is: providing a mobile terminal, the mobile terminal including the aforementioned antenna, as well as a computer body and a metal casing. The computer body includes a motherboard, the metal casing includes a first bottom shell and a second bottom shell, the first bottom shell and the second bottom shell together forming a receiving cavity, and an opening is provided between the first bottom shell and the second bottom shell, the opening communicating with the receiving cavity, the motherboard being received in the receiving cavity, the antenna being at least partially received in the receiving cavity, and the first mounting surface being exposed through the opening.

[0012] In one or more embodiments, the number of openings is two, and the number of antennas is two. The two openings are respectively disposed on both sides of the metal casing, and the openings are arranged along the thickness direction of the metal casing in a direction away from the motherboard.

[0013] In one or more embodiments, the projection of the opening along the thickness direction of the metal casing is equal to the projection of the antenna.

[0014] In one or more embodiments, the antenna further includes a first mounting portion, and the first bottom shell and / or the second bottom shell are further provided with a second mounting portion, wherein the first mounting portion and the second mounting portion are mounted and fixed.

[0015] The beneficial effects of this application embodiment are as follows: Unlike existing technologies, this application embodiment provides an antenna applied to a mobile terminal. The mobile terminal includes a metal casing, and the antenna includes a bracket, a radiating module, and a conductive connection component. The bracket is at least partially housed within the metal casing. The bracket has adjacent first and second mounting surfaces. The first mounting surface is exposed above the metal casing, and a gap exists between the second mounting surface and the metal casing. The radiating module is printed on the bracket and includes an impedance matching region, a low-frequency radiation region, and a high-frequency radiation region. The impedance matching region is located on the first mounting surface and is used to adjust the matching degree between the high-frequency and low-frequency radiation regions. The low-frequency and high-frequency radiation regions are positioned opposite each other on the second mounting surface. The low-frequency radiation region is used to receive or transmit low-frequency signals, and the high-frequency radiation region is used to receive or transmit high-frequency signals. The conductive connection component connects the radiating module and the metal casing. With the above structure, the first mounting surface is exposed to the metal casing to reduce the shielding of the signal by the metal casing and improve the stability of the network signal connection of the all-metal laptop. The radiation module has the impedance matching area, the low-frequency radiation area and the high-frequency radiation area, thereby expanding the range of the network signal operating frequency band. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a mobile terminal provided in one embodiment of the present invention;

[0018] Figure 2 This is a partial perspective view of a mobile terminal provided in one embodiment of the present invention;

[0019] Figure 3 This is a partial exploded view of a mobile terminal provided in one embodiment of the present invention;

[0020] Figure 4 This is a perspective view of the antenna provided in one embodiment;

[0021] Figure 5This is another perspective view of the antenna provided in one embodiment;

[0022] Figure 6 This is a measured diagram of the return loss of the antenna provided in one embodiment of the present invention;

[0023] Figure 7 This is a measured low-frequency efficiency graph of the antenna provided in one embodiment of the present invention;

[0024] Figure 8 This is a measured high-frequency efficiency diagram of an antenna provided in one embodiment of the present invention.

[0025] The attached figures are labeled as follows:

[0026] mobile terminal 1 Power supply section 1242 antenna 1000 First connection area 1250 support 1100 Second connection area 1260 First mounting surface 1110 Conductive connection components 1300 Second mounting surface 1120 First conductive element 1310 Third mounting surface 1130 Second conductive element 1320 Fourth mounting surface 1140 Computer body 2000 Radiation module 1200 motherboard 2100 Impedance matching region 1210 Metal casing 3000 Low-frequency radiation zone 1220 First bottom shell 3100 High frequency radiation zone 1230 Second bottom shell 3200 coaxial cable 1240 Containment cavity 3300 Grounding part 1241 Opening 3400 Detailed Implementation

[0027] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0029] As society's demands for the aesthetics and performance of laptops continue to rise, all-metal laptops, with their high-end feel, durability, and excellent heat dissipation, are gradually becoming the first choice for consumers. However, the metal material of all-metal laptops can affect the signal transmission and reception of the laptop.

[0030] Based on this, please refer to Figure 1 and Figure 2 This application provides a mobile terminal 1, including an antenna 1000, a computer body 2000, and a metal casing 3000. In other embodiments, the mobile terminal 1 may also include a mobile phone body, a tablet computer body 2000, etc.

[0031] For the aforementioned antenna 1000, please refer to Figure 2 and Figure 3The antenna 1000 includes a support 1100, a radiation module 1200, and a conductive connection assembly 1300.

[0032] In some embodiments, please refer to Figure 4 The bracket 1100 is at least partially housed within the metal housing 3000. The bracket 1100 has adjacent first mounting surface 1110 and second mounting surface 1120. The first mounting surface 1110 is exposed outside the metal housing 3000, and there is a gap between the second mounting surface 1120 and the metal housing 3000.

[0033] In some embodiments, please refer to Figure 4 The radiation module 1200 is printed on the bracket 1100. The radiation module 1200 is provided with an impedance matching area 1210, a low-frequency radiation area 1220 and a high-frequency radiation area 1230. The impedance matching area 1210 is provided on the first mounting surface 1110. The impedance matching area 1210 is used to adjust the matching degree between the high-frequency radiation area 1230 and the low-frequency radiation area 1220. The low-frequency radiation area 1220 and the high-frequency radiation area 1230 are respectively provided on the second mounting surface 1120. The low-frequency radiation area 1220 is used to receive or transmit low-frequency signals, and the high-frequency radiation area 1230 is used to receive or transmit high-frequency signals.

[0034] In some embodiments, please refer to Figure 4 The conductive connection component 1300 is connected between the radiation module 1200 and the metal housing 3000.

[0035] With the above structure, the first mounting surface 1110 is exposed to the metal casing 3000 to reduce the shielding of the signal by the metal casing 3000 and improve the stability of the network signal connection of the all-metal laptop. The radiation module 1200 has an impedance matching area 1210, a low-frequency radiation area 1220 and a high-frequency radiation area 1230, thereby expanding the range of the network signal operating frequency band.

[0036] Optionally, please refer to Figure 4 The bracket 1100 is a quadrangular prism. Of its four surfaces with the largest and equal areas, two adjacent surfaces serve as the first mounting surface 1110 and the second mounting surface 1120. The first mounting surface 1110 is exposed to the metal housing 3000, thereby reducing the signal shielding of the antenna 1000 by the metal housing 3000. Optionally, the length of the bracket 1100 can be between 40mm and 50mm, preferably 48mm; the width of the bracket 1100 can be between 5mm and 8mm, preferably 6mm; and the height of the bracket 1100 can be between 7mm and 10mm, preferably 8mm. Optionally, the bracket 1100 is made of plastic, such as PTFE, PI, ABS, etc.

[0037] It must be noted that the radiating module 1200 excites multiple resonant frequencies, namely, an impedance matching region 1210, a low-frequency radiation region 1220, and a high-frequency radiation region 1230. The low-frequency radiation region 1220 is the excited resonant frequency of 2.4 GHz, and the high-frequency radiation region 1230 is the excited resonant frequency of 5 GHz and 6 EHz. This results in a wide bandwidth for the antenna 1000 provided in this application, covering the frequency bands from 2.4 GHz to 2.6 GHz or from 5 GHz to 7 GHz. It can be understood that the antenna 1000 provided in this application is a PIFA (Planar Inverted-F Antenna) folded antenna 1000 structure.

[0038] In some embodiments, please refer to Figure 3 The radiation module 1200 includes a coaxial cable 1240.

[0039] In some embodiments, please refer to Figure 4 The coaxial cable 1240 is printed on the bracket 1100. The coaxial cable 1240 is bent on the first mounting surface 1110 to form an impedance matching area 1210. The coaxial cable 1240 is branched on the second mounting surface 1120 to form a high-frequency radiation area 1230 and a low-frequency radiation area 1220.

[0040] It is understood that the coaxial cable 1240 is bent and connected between the first mounting surface 1110 and the second mounting surface 1120 to form a signal path. The impedance matching region 1210 is located between the two wires of the coaxial cable 1240 at the bend. The radiating module 1200 printed on the bracket 1100 means that a metal radiating patch, feed line, or grounding layer of a specific shape is formed on the surface of the bracket 1100 through etching or deposition processes, which are the aforementioned impedance matching region 1210, low-frequency radiation region 1220, and high-frequency radiation region 1230. Among them, the low-frequency radiation region 1220 and the high-frequency radiation region 1230 extend in opposite directions from the second mounting surface 1120. The coaxial cable 1240 on the first mounting surface 1110 is connected at the junction of the high-frequency radiation region 1230 and the low-frequency radiation region 1220. The high-frequency radiation region 1230 is close to the junction of the three. The low-frequency radiation region 1220 and the high-frequency radiation region 1230 are arranged in an "F" shape.

[0041] In some embodiments, please refer to Figure 5 The bracket 1100 also has adjacent third mounting surface 1130 and fourth mounting surface 1140.

[0042] In some embodiments, please refer to Figure 4 and Figure 5The third mounting surface 1130 is disposed opposite to the second mounting surface 1120, the fourth mounting surface 1140 is disposed opposite to the first mounting surface 1110, and the third mounting surface 1130 is disposed adjacent to the first mounting surface 1110. The direction in which the first mounting surface 1110 and the fourth mounting surface 1140 are disposed opposite is the thickness direction of the metal casing 3000.

[0043] In some embodiments, please refer to Figure 4 and Figure 5 The radiation module 1200 also includes a first connection area 1250 and a second connection area 1260. A coaxial cable 1240 is printed on a third mounting surface 1130 to form the first connection area 1250, and a coaxial cable 1240 is printed on a fourth mounting surface 1140 to form the second connection area 1260. The low-frequency radiation area 1220 and the high-frequency radiation area 1230 are both disconnected from the second connection area 1260. The first connection area 1250 and the second connection area 1260 cover the third mounting surface 1130 and the fourth mounting surface 1140, respectively. The first connection area 1250 and the second connection area 1260 are positioned facing the receiving cavity 3300.

[0044] In some embodiments, please refer to Figure 4 and Figure 5 The conductive connection assembly 1300 includes a first conductive element 1310 and a second conductive element 1320.

[0045] In some embodiments, please refer to Figure 4 and Figure 5 One end of the first conductive element 1310 is connected to at least a portion of the first connection area 1250 and the coaxial cable 1240 on the first mounting surface 1110, and the other end of the first conductive element 1310 is connected to the metal housing 3000.

[0046] In some embodiments, please refer to Figure 4 and Figure 5 One end of the second conductive element 1320 is connected to the second connection area 1260, and the other end of the second conductive element 1320 is connected to the metal casing 3000.

[0047] Optionally, please refer to Figure 5 The first conductive element 1310 and the second conductive element 1320 are configured as conductive foam, wherein the second conductive element 1320 is set separately, one second conductive element 1320 is set near the low frequency radiation region 1220, and the other second conductive element 1320 is set near the high frequency radiation region 1230.

[0048] In some embodiments, please refer to Figure 4The coaxial cable 1240 is provided with a grounding part 1241, which is located on the first mounting surface 1110 and is located near the third mounting surface 1130 and connected to the first conductive element 1310. The grounding part 1241 is used for grounding.

[0049] In some embodiments, please refer to Figure 4 The coaxial cable 1240 is equipped with a feed section 1242, located on the first mounting surface 1110. The feed section 1242 is positioned near the fourth mounting surface 1140 and is connected to the high-frequency radiation region 1230. It should be noted that "the feed section 1242 is connected to the high-frequency radiation region 1230" means that the high-frequency radiation region 1230 and the low-frequency radiation region 1220 are connected, with the feed section 1242 connected at the junction of the high-frequency radiation region 1230 and the low-frequency radiation region 1220. Since the feed section 1242 is closer to the high-frequency radiation region 1230, the high-frequency and low-frequency resonant modes of the antenna 1000 can be adjusted simultaneously through the feed section 1242.

[0050] Optionally, please refer to Figure 4 The grounding part 1241 and the power supply part 1242 are spaced apart on the first mounting surface 1110, with the grounding part 1241 and the power supply part 1242 being arranged opposite to each other.

[0051] For the aforementioned antenna 1000, this application also tested the passive efficiency of the antenna 1000 using a GTS2800 anechoic chamber and the return loss of the antenna 1000 using a network analyzer. The test results of the return loss of the antenna 1000 are as follows: Figure 6 As shown, the antenna 1000 efficiency test results are as follows: Figure 7 and Figure 8 As shown. The technical solution provided in this application achieves the high-performance performance requirements of the antenna 1000 in an all-metal environment. The antenna 1000 designed in this solution has a wide bandwidth, and within the operating frequency band of the antenna 1000 (see above for details), the efficiency is not less than 40%, and the antenna gain is high.

[0052] The mobile terminal 1 will be further described in conjunction with the aforementioned antenna 1000. The mobile terminal 1 includes the aforementioned antenna 1000, as well as a computer body 2000 and a metal casing 3000.

[0053] In some embodiments, please refer to Figure 3 The computer body 2000 includes the motherboard 2100.

[0054] In some embodiments, please refer to Figure 3 The metal casing 3000 includes a first bottom shell 3100 and a second bottom shell 3200.

[0055] In some embodiments, please refer to Figure 3The first bottom shell 3100 and the second bottom shell 3200 together form a receiving cavity 3300, and an opening 3400 is provided between the first bottom shell 3100 and the second bottom shell 3200, which communicates with the receiving cavity 3300. The main board 2100 is housed in the receiving cavity 3300, and the antenna 1000 is at least partially housed in the receiving cavity 3300, with the first mounting surface 1110 exposed in the opening 3400. It can be understood that by providing the opening 3400, the antenna 1000 can be exposed in the opening 3400 to reduce the shielding of the signal by the metal material, and heat dissipation can also be achieved through the opening 3400.

[0056] In some embodiments, please refer to Figure 3 There are two openings 3400 and two antennas 1000. The two openings 3400 are respectively located on both sides of the metal casing 3000, and are positioned along the thickness direction of the metal casing 3000, facing away from the motherboard 2100. Specifically, the openings 3400 are positioned facing the plane where the metal casing 3000 of the mobile terminal 1 is placed, thus exposing the antennas 1000 to parts that are not easily accessible to the human body, improving safety and reducing the impact of human body obstruction on the signal transmission and reception performance of the antennas 1000. Optionally, the antennas 1000 are Wi-Fi antennas 1000. By symmetrically arranging the openings 3400 and antennas 1000 in pairs, the signal transmission and reception capabilities of the mobile terminal 1 are improved.

[0057] In some embodiments, please refer to Figure 3 Along the thickness direction of the metal casing 3000, the projection of the opening 3400 is equal to the projection of the antenna 1000. It must be noted that "the projection of the opening 3400 is equal to the projection of the antenna 1000" means that the projected areas are approximately equal, and there is a manufacturing tolerance, which is within ±2mm2.

[0058] In some embodiments, the antenna 1000 further includes a first mounting portion (not shown in the figure), and the first bottom shell 3100 and / or the second bottom shell 3200 are further provided with a second mounting portion (not shown in the figure), and the first mounting portion and the second mounting portion are mounted and fixed. It is understood that the first mounting portion and the second mounting portion can be a structure that interlocks with each other. Alternatively, it can be an adhesive or interference fit between the first conductive element 1310 and the second conductive element 1320 and the metal casing 3000.

[0059] This application aims to provide an antenna 1000 for use in a mobile terminal 1. The mobile terminal 1 includes a metal casing 3000, and the antenna 1000 includes a bracket 1100, a radiating module 1200, and a conductive connection assembly 1300. The bracket 1100 is at least partially housed within the metal casing 3000, and the bracket 1100 has adjacent first mounting surfaces 1110 and 1120. The first mounting surface 1110 is exposed outside the metal casing 3000, and there is a gap between the second mounting surface 1120 and the metal casing 3000. The radiation module 1200 is printed on the bracket 1100. The radiation module 1200 includes an impedance matching region 1210, a low-frequency radiation region 1220, and a high-frequency radiation region 1230. The impedance matching region 1210 is located on the first mounting surface 1110 and is used to adjust the matching degree between the high-frequency radiation region 1230 and the low-frequency radiation region 1220. The low-frequency radiation region 1220 and the high-frequency radiation region 1230 are positioned opposite each other on the second mounting surface 1120. The low-frequency radiation region 1220 is used to receive or transmit low-frequency signals, and the high-frequency radiation region 1230 is used to receive or transmit high-frequency signals. A conductive connection assembly 1300 connects the radiation module 1200 and the metal housing 3000. With the above structure, the first mounting surface 1110 is exposed to the metal casing 3000 to reduce the shielding of the signal by the metal casing 3000 and improve the stability of the network signal connection of the all-metal laptop. The radiation module 1200 has an impedance matching area 1210, a low-frequency radiation area 1220 and a high-frequency radiation area 1230, thereby expanding the range of the network signal operating frequency band.

[0060] Based on the same inventive concept, this application also provides a mobile terminal 1, which includes the aforementioned antenna 1000, computer body 2000, and metal casing 3000, etc. The functions and effects of these structures are described above and will not be repeated here. Therefore, the mobile terminal 1 provided by this application can also improve the current situation of poor network signal connection stability and limited network signal operating frequency range of all-metal laptops.

[0061] It should be noted that while preferred embodiments of this application are provided in the specification and accompanying drawings, this application can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this application; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this application. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this application's specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An antenna for use in a mobile terminal, the mobile terminal comprising a metal casing, characterized in that, include: A bracket, at least partially housed within the metal housing, the bracket having adjacent first and second mounting surfaces, the first mounting surface being exposed outside the metal housing, and a gap existing between the second mounting surface and the metal housing; A radiation module is printed on the bracket. The radiation module is provided with an impedance matching area, a low-frequency radiation area and a high-frequency radiation area. The impedance matching area is disposed on the first mounting surface and is used to adjust the matching degree between the high-frequency radiation area and the low-frequency radiation area. The low-frequency radiation area and the high-frequency radiation area are disposed opposite to each other on the second mounting surface. The low-frequency radiation area is used to receive or transmit low-frequency signals, and the high-frequency radiation area is used to receive or transmit high-frequency signals. as well as, A conductive connection assembly is provided between the radiation module and the metal casing.

2. The antenna according to claim 1, characterized in that, The radiation module includes a coaxial cable printed on the bracket. The coaxial cable is bent at the first mounting surface to form the impedance matching area, and the coaxial cable branches at the second mounting surface to form the high-frequency radiation area and the low-frequency radiation area.

3. The antenna according to claim 2, characterized in that, The bracket also has an adjacent third mounting surface and a fourth mounting surface, the third mounting surface being disposed opposite to the second mounting surface, the fourth mounting surface being disposed opposite to the first mounting surface, and the third mounting surface being disposed adjacent to the first mounting surface; The radiation module further includes a first connection area and a second connection area. The first connection area is formed by printing the coaxial cable on the third mounting surface, and the second connection area is formed by printing the coaxial cable on the fourth mounting surface. The low-frequency radiation area and the high-frequency radiation area are both disconnected from the second connection area.

4. The antenna according to claim 3, characterized in that, The conductive connection component includes: A first conductive element, one end of which is connected to at least a portion of the first connection area and the coaxial cable at the first mounting surface, and the other end of which is connected to the metal housing; and The second conductive element has one end connected to the second connection area and the other end connected to the metal casing.

5. The antenna according to claim 4, characterized in that, The coaxial cable is provided with a grounding part located on the first mounting surface. The grounding part is located near the third mounting surface and connected to the first conductive element. The grounding part is used for grounding.

6. The antenna according to claim 3, characterized in that, The coaxial cable is provided with a power supply section located on the first mounting surface. The power supply section is located close to the fourth mounting surface and is connected to the high-frequency radiation zone.

7. A mobile terminal, characterized in that, Includes the antenna as described in any one of claims 1-6, as well as the computer body and metal casing; The computer body includes a motherboard, and the metal casing includes a first bottom shell and a second bottom shell. The first bottom shell and the second bottom shell together form a receiving cavity, and an opening is left between the first bottom shell and the second bottom shell. The opening communicates with the receiving cavity. The motherboard is received in the receiving cavity, the antenna is at least partially received in the receiving cavity, and the first mounting surface is exposed through the opening.

8. The mobile terminal according to claim 7, characterized in that, The number of openings is two, and the number of antennas is two; The two openings are respectively disposed on both sides of the metal casing, and the openings are disposed along the thickness direction of the metal casing in a direction away from the motherboard.

9. The mobile terminal according to claim 7, characterized in that, Along the thickness direction of the metal casing, the projection of the opening is equal to the projection of the antenna.

10. The mobile terminal according to claim 7, characterized in that, The antenna further includes a first mounting part, and the first bottom shell and / or the second bottom shell are further provided with a second mounting part, wherein the first mounting part and the second mounting part are installed and fixed together.

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