CN105024715B - Communication device and its antenna - Google Patents

Abstract

The present invention relates to a communication device, comprising a front housing, a metal back cover, a body, a display panel, a signal feed point, a ground point, an antenna and a conductor. The body is located between the front housing and the metal back cover. The antenna is mounted to the body and corresponds to an edge adjacent to the display panel, and the antenna includes a first metal part and a second metal part. The first metal part is connected to a signal feed point, and the second metal part is connected to a ground point. The metal back cover is also connected to the ground point. A coupling distance is defined between the conductor and the antenna, and at least a portion of the conductor corresponds to the display panel.

Description

Communication device and its antenna

technical field

The invention relates to a communication device and its antenna, in particular to a communication device adopting a metal casing, and using the metal casing as an antenna for transmitting and receiving radio signals of the communication device.

Background technique

In the development process of previous communication devices, such as handheld mobile products, manufacturers mostly use plastic casings based on cost considerations in order to maintain the basic radiation characteristics of the antenna. But with the trend of metal casing brought by Apple iPhone and Macbook, coupled with its own advantages of light weight, good heat dissipation, strong structure, impact resistance, beautiful appearance, anti-electromagnetic wave and recyclability, the penetration rate of metal casing Gradually go higher. Therefore, the new generation of mobile product development is mainly based on metal casings. For example, the U.S. patent U.S. 8,054,231B2 issued to Ahn et al. discloses a metal cover that uses a slot antenna (slot antenna) ( metal case) is used as the antenna of the mobile device, but the disadvantage is that such a slot will obviously damage the appearance of the metal cover, and the position of such a slot needs to correspond to a specific area of the metal cover. Therefore, how to design a suitable antenna so that the electromagnetic waves generated by it can penetrate the metal casing to achieve the effect of communication without damaging the appearance of the metal cover is really important.

Contents of the invention

The purpose of the present invention is to provide an antenna for a communication device, which uses a metal back cover as a radiation surface, and guides electromagnetic wave radiation energy to the display panel of the communication device, and can strengthen the antenna without damaging the metal back cover. The transmitting and receiving capability of the antenna.

A communication device according to one aspect of the present invention includes a front case, a display module, a display panel, a metal back cover, a body, a signal feed-in point, a grounding point, an antenna and a conductor, and is characterized in that : the display panel is installed between the display module and the front case; the body is located between the front case and the metal back cover, and the body is a non-conductive material; the antenna is installed To the body, the antenna includes a first metal part, a second metal part, and a third metal part extending between the first metal part and the second metal part, wherein the first metal part of the antenna The part is connected to the signal feeding point, the second metal part of the antenna is connected to the ground point, and is connected to the metal back cover; and a coupling distance is defined between the conductor and the antenna, at least a part of the conductor is Corresponding to the display panel, and the conductor includes a first conductor part, a second conductor part connected to the first conductor part, and a slot located at the second conductor part.

Wherein, the front case is substantially a rectangular frame defining a window, and the display panel corresponds to the window of the front case.

Wherein, the front shell is made of metal material.

Wherein, the display panel is made of glass.

Wherein, the first metal part, the second metal part, and the third metal part of the antenna jointly form an approximate loop antenna track.

Wherein, the antenna is corresponding to any edge adjacent to the display panel.

Wherein, the third metal part of the antenna includes a first line segment, a second line segment, a third line segment and a fourth line segment, wherein the first line segment is substantially parallel to the metal back cover, the The second line segment is extended and connected between the first line segment and the third line segment, and at least a part of the second line segment passes through the body and is substantially perpendicular to the metal back cover, and the fourth line segment is connected The third line segment and at least a part of the fourth line segment pass through the body and are substantially perpendicular to the metal back cover.

Wherein, a connection terminal is connected to the grounding point, at least a part of the connection terminal is corresponding to the metal back cover, and when the metal back cover is installed on the body, the metal back cover contacts the connection terminal.

An antenna for a communication device according to another aspect of the present invention includes a metal back cover, a body, a printed circuit board, an antenna, and a conductor, and is characterized in that: the body is made of a non-conductor material; The printed circuit board is installed on the body, and the printed circuit board includes a signal feed-in point and a grounding point; the antenna is installed on the body, and the antenna includes a first metal part and a second metal part, wherein the The first metal part of the antenna is connected to the signal feeding point of the printed circuit board, the second metal part of the antenna is connected to the ground point of the printed circuit board, and connected to the metal back cover; and the conductor and the antenna A coupling distance is defined between them, and the conductor includes a first conductor part, a second conductor part connected to the first conductor part, and a slot located at the second conductor part.

Wherein, the antenna further includes a third metal part extended and connected between the first metal part and the second metal part, the first metal part, the second metal part, and the third metal part together form a Approximate loop antenna trajectory.

Description of drawings

To further illustrate and confirm the above-mentioned purpose, structural features and effects of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

FIG. 1 is a schematic diagram showing the appearance of a communication device according to an embodiment of the present invention.

FIG. 2 is an exploded schematic diagram of a communication device according to an embodiment of the present invention.

FIG. 3 shows an exploded diagram of an antenna configuration of a communication device according to an embodiment of the present invention.

FIG. 4 is a partially enlarged schematic diagram of an antenna configuration of a communication device according to an embodiment of the present invention.

FIG. 5 is a schematic diagram showing the relationship between the metal back cover and the antenna configuration according to the embodiment of the present invention.

FIG. 6 is a schematic configuration diagram of a communication device according to an embodiment of the present invention.

FIG. 7 is an enlarged schematic view of position A in FIG. 6 .

detailed description

1 and 2 show that the communication device 10 according to the embodiment of the present invention includes a front case 12 , a display module 14 , a display panel 16 , a metal back cover 18 and a body 20 . Wherein, the front case 12 is substantially a rectangular frame defining a window 22 , and the front case 12 is made of metal material, but not limited to this material. The display panel 16 is installed between the display module 14 and the front case 12, and corresponds to the window 22 of the front case 12. The display panel 16 is made of a glass material, but not limited to this material. . The metal back cover 18 is substantially rectangular, and its position is substantially corresponding to the front case 12 . In detail, the main body 20 is located between the front case 12 and the metal back cover 18 to install the display module 14 and the display panel 16 on the main body 20 . In addition, the body 20 is made of a non-conductive material, such as plastic, but not limited thereto.

3 to 7 further show that the antenna arrangement of the communication device 10 includes at least a printed circuit board 24 , an antenna 26 and a conductor 28 .

The printed circuit board 24 is mounted on the body 20 and includes a signal feed point 30 and a ground point 32 . It should be noted that the configuration of the printed circuit board 24 can also be a large area or other sizes relative to the body 20. In other words, the size of the printed circuit board 24 is not limited to the area drawn in the figure. be declared.

In a preferred embodiment, it further includes a connection terminal 34 connected to the ground point 32 of the printed circuit board 24 , at least a part of the connection terminal 34 corresponds to the metal back cover 18 , as shown in FIG. 5 . Therefore, when the metal back cover 18 is installed on the main body 20 , the metal back cover 18 will contact the connecting terminal 34 .

The antenna 26 is mounted on the body 20 and corresponds to any edge adjacent to the display panel 16 , such as the bottom edge of the display panel 16 . The antenna 26 includes a first metal part 36, a second metal part 38, and a third metal part 40 extending between the first metal part 36 and the second metal part 38, the first metal part 36 , the second metal portion 38 , and the third metal portion 40 together form an approximate loop antenna trace. Wherein, the first metal part 36 is connected to the signal feeding point 30 of the printed circuit board 24 . The second metal portion 38 is connected to the ground point 32 of the printed circuit board 24 .

In a preferred embodiment, the third metal portion 40 includes a first line segment 42a, a second line segment 42b, a third line segment 42c and a fourth line segment 42d. Wherein, the first line segment 42 a is substantially parallel to the metal back cover 18 . The second line segment 42b extends and connects between the first line segment 42a and the third line segment 42c, and at least a part of the second line segment 42b passes through the body 20 and is substantially perpendicular to the metal back cover 18 , to reduce the coupling effect between metals. The third line segment 42c is substantially parallel to the first line segment 42a. The fourth line segment 42d is connected to the third line segment 42c, and at least a part of the fourth line segment 42d passes through the body 20 and is substantially perpendicular to the metal back cover 18, which can also reduce the coupling effect between metals.

A coupling distance 44 is defined between the conductor 28 and the antenna 26. Specifically, at least a part of the conductor 28 corresponds to the display panel 16, and the coupling distance 44 is formed by the third metal of the conductor 28 and the antenna 26. Defined between the third line segment 42c of the portion 40, and the coupling distance 44 is substantially less than 2mm. In a preferred embodiment, the conductor 28 includes a first conductor portion 46a, a second conductor portion 46b connected to the first conductor portion 46a, and a slit 48 located at the second conductor portion 46b. It should be noted that the areas of the first conductor portion 46a and the second conductor portion 46b are not limited to the ratio shown in the figure, and here only shows a preferred implementation aspect, one of the conductors 28 of the present invention The purpose is to properly match the antenna 26 to adjust the bandwidth. Another purpose of the conductor 28 is to guide the radiation energy of the electromagnetic wave toward the display panel 16 .

According to the above, when the communication device 10 is turned on, the radio frequency energy is transmitted to the antenna 26 and the metal back cover 18 through the signal feed point 30 and the ground point 32 of the printed circuit board 24, so that the metal back cover 18 can be used as a radiation surface to transmit and receive radio signals of the communication device 10 . On the other hand, energy can also be coupled to the conductor 28 by means of the coupling spacing 44. Since the position of the conductor 28 corresponds to a part of the display panel 16, the radiation energy of the antenna can be directed toward the display panel 16 by means of the conductor 28. The panel 16 can strengthen the radio signal sending and receiving capability of the communication device 10 .

According to the above description, it can be seen that the improved efficacy and advantages of the present invention are: the design of the antenna will not damage the appearance of the metal back cover, and has more beautiful advantages than the known ones, making the design of the metal back cover more diverse.

Although the present invention has been described with reference to the current specific embodiments, those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present invention, and other modifications can be made without departing from the spirit of the present invention. Various equivalent changes and modifications, therefore, as long as the changes and modifications to the above embodiments are within the true spirit of the present invention, they will all fall within the scope of the claims of the present application.

Claims (10)

1. a kind of communication device, includes a procapsid, a display module, a display panel, a metal back cover, a body, a news Number load point, an earth point, an antenna and a conductor, it is characterised in that：

The display panel, between the display module and the procapsid；

The body, between the procapsid and the metal back cover, the body is a kind of idioelectric material；

The antenna is attached to the body, and the antenna prolongs comprising one first metal portion, one second metal portion and one the 3rd metal portion Stretch and be connected between first metal portion and second metal portion, wherein, the first metal portion of the antenna is connected to signal feedback Access point, the second metal portion of the antenna is connected to the earth point, and is connected with the metal back cover；And

One is defined between the conductor and the antenna and couples spacing, at least a portion of the conductor corresponds to the display panel, And the conductor connects first conductor portion comprising one first conductor portion, one second conductor portion and a sealing is located at second conductor Portion.

2. communication device according to claim 1, it is characterised in that the procapsid is generally rectangular box definition One window, the display panel corresponds to the window of the procapsid.

3. communication device according to claim 2, it is characterised in that the procapsid is as made by metal material.

4. communication device according to claim 1, it is characterised in that the display panel is glass material.

5. communication device according to claim 1, it is characterised in that the first metal portion of the antenna, the second metal portion, And the 3rd metal portion collectively form a sub-circular antenna trace.

6. communication device according to claim 1, it is characterised in that the antenna corresponds to the adjacent display panel Any edge.

7. communication device according to claim 1, it is characterised in that the 3rd metal portion of the antenna includes a First Line Section, a second line segment, one the 3rd line segment and one the 4th line segment, wherein, first line segment is generally parallel to the metal back cover, The second line segment is that extension is connected between first line segment and the 3rd line segment branch, and at least a portion of the second line segment is to wear The body is crossed, and is generally perpendicular to the metal back cover, the 4th line segment is the 3rd line segment of connection, and the 4th line segment is extremely A few part is, through the body, and to be generally perpendicular to the metal back cover.

8. communication device according to claim 1, it is characterised in that be also connected to the earth point including a connection terminal, At least a portion of the connection terminal corresponds to the metal back cover, when the metal back cover is attached to the body, the metal back of the body Lid contacts the connection terminal.

9. a kind of communication device, comprising a metal back cover, a body, a printed circuit board (PCB), an antenna and a conductor, its feature exists In：

The body, is a kind of idioelectric material；

The printed circuit board (PCB), is attached to the body, and the printed circuit board (PCB) includes a signal load point and an earth point；

The antenna is attached to the body, and the antenna includes one first metal portion, one second metal portion, wherein, the of the antenna One metal portion is connected to the signal load point of the printed circuit board (PCB), and the second metal portion of the antenna is connected to the printed circuit board (PCB) Earth point, and be connected with the metal back cover；And

One is defined between the conductor and the antenna and couples spacing, the conductor connects comprising one first conductor portion, one second conductor portion Connect first conductor portion and a sealing is located at second conductor portion.

10. communication device according to claim 9, it is characterised in that the antenna also extends comprising one the 3rd metal portion to be connected It is connected between first metal portion and second metal portion, first metal portion, second metal portion and the 3rd metal portion are common With one sub-circular antenna trace of composition.