TWI544683B - Communication device and antenna thereof - Google Patents

Description

Communication device and its antenna

The present invention relates to an antenna for a communication device, and more particularly to a communication device that can employ a metal frame that uses the metal frame as a common antenna for transmitting and receiving radio signals of the communication device.

In the past development of communication devices, such as handheld mobile products, manufacturers mostly used plastic casings based on cost considerations in order to maintain the basic radiation characteristics of the antenna. However, with the metal case of Apple iPhone and Macbook, coupled with its own lightweight, good heat dissipation, strong structure, impact resistance, aesthetics, anti-electromagnetic wave and recyclable, the metal case permeability Gradually higher. Therefore, a new generation of mobile product development is mainly based on metal casings, such as U.S. Patent No. 8,054,231 B2 to Ahn et al., which discloses a metal cover using a slot antenna. The metal case is used as an antenna for a mobile device, but has the disadvantage that such a hole can significantly damage the appearance of the metal cover, and the position of such a hole needs to correspond to a specific area of the metal cover. Apple's iPhone series phones from the 4 series to the 5 series have boldly used some mobile phone metal structural parts as part of the antenna to participate in radiation. The participation of metal structural parts in antenna design is beneficial to further With limited space and reduced size, the iPhone 4 is a metal ring antenna, and the iPhone 5 is a dynamic metal ring antenna. They all have gaps in the metal ring, which has a large description of the antenna performance, but also affects the appearance. effect.

Therefore, it is important to design a suitable antenna so that the electromagnetic wave generated can penetrate the metal casing to achieve the communication effect without damaging the appearance of the metal structural member.

The present invention relates to an antenna for a communication device, and more particularly to an antenna for a communication device assembled without damaging the appearance of the metal structural member.

According to one aspect of the present invention, a communication device includes a metal frame defining an opening, and the metal frame has a first portion, a second portion being different from the first portion, a third portion, and a fourth portion The position is different from the third part; a display module; a display panel mounted between the display module and the metal frame, and corresponding to the opening of the metal frame; a metal back cover; a printed circuit board, The first circuit block and the second circuit block are electrically connected to the first circuit block, each block includes a signal end and a ground segment, wherein the ground segment is in contact with the metal back cover; a body between the metal frame and the metal back cover, the body is a non-conductor material; a first conductor connected to the first portion of the metal frame and the signal end of the first circuit block of the printed circuit board a second conductor coupled between the second portion of the metal frame and the ground portion of the first circuit block of the printed circuit board; a third conductor coupled to the third portion of the metal frame; a fourth conductor, even Connecting a grounding segment of the second circuit block of the printed circuit board, and defining at least one coupling pitch between the third conductor and the fourth conductor; wherein a signal end of the second circuit block of the printed circuit board is electrically Sexually connected to the fourth part of the metal frame.

The first portion and the second portion of the metal frame are located at a right upper position relatively close to the display panel.

The third portion and the fourth portion of the metal frame are located at a lower right position relatively close to the display panel.

According to another aspect of the present invention, an antenna of a communication device includes a metal frame defining an opening, the metal frame having a first portion, a second portion, a third portion, and a fourth portion; a metal back a printed circuit board comprising a first circuit block and a second circuit block electrically connected to the first circuit block, each block comprising a signal end and a ground segment, wherein the ground segment The metal back cover contacts; a first conductor connected between the first portion of the metal frame and the signal end of the first circuit block of the printed circuit board; and a second conductor connected to the second portion of the metal frame Between the grounding section of the first circuit block of the printed circuit board; a third conductor connected to the third portion of the metal frame; and a fourth conductor connected to the second circuit block of the printed circuit board a portion, and at least one coupling pitch is defined between the third conductor and the fourth conductor; a signal end of the second circuit block of the printed circuit board is electrically connected to the fourth portion of the metal frame, and by means of the a coupling pitch coupled to A second circuit block connected to the printed circuit board area.

Wherein the third conductor extends a length to a second circuit block located adjacent to the printed circuit board.

10‧‧‧Communication device

12‧‧‧Metal frame

14‧‧‧Display module

16‧‧‧ display panel

18‧‧‧Metal back cover

20‧‧‧Printed circuit board

22‧‧‧Ontology

24‧‧‧ Opening

26‧‧‧First circuit block

28‧‧‧Second circuit block

30‧‧‧First conductor

32‧‧‧Second conductor

34‧‧‧Part 1

36‧‧‧Part II

38‧‧‧ signal end

40‧‧‧ Grounding section

42‧‧‧ Third conductor

44‧‧‧fourth conductor

46‧‧‧ signal line

48‧‧‧ signal end

50‧‧‧ Grounding section

52‧‧‧Part III

54‧‧‧Part IV

56‧‧‧Coupling spacing

1 is a schematic diagram showing the appearance of a communication device according to an embodiment of the present invention; FIG. 2 is a schematic exploded view of a communication device according to an embodiment of the present invention; FIG. 3 is a schematic diagram showing an antenna configuration of a communication device according to an embodiment of the present invention; FIG. 5 is a schematic diagram showing an antenna configuration of a communication device in a first position according to an embodiment of the present invention (a metal frame is not shown); and FIG. 6 is a metal back cover according to an embodiment of the present invention. A schematic diagram of the relationship between the grounding section of the first circuit block of the printed circuit board; FIG. 7 is a schematic diagram showing the antenna arrangement of the communication device in a second position according to the embodiment of the present invention; FIG. 8 shows the communication device of the embodiment of the present invention. The antenna configuration diagram of the second position (metal frame is not shown); FIG. 9 shows an enlarged schematic view of the A position in FIG. 8; and FIG. 10 shows the relationship between the metal back cover of the embodiment of the present invention and the grounding section of the printed circuit board.

FIG. 1 and FIG. 2 show that the communication device 10 of the embodiment of the present invention generally includes a metal frame 12, a display module 14, a display panel 16, and a metal. A back cover 18, a printed circuit board 20, and a body 22. The metal frame 12 is substantially a rectangular frame defining an opening 24 for use as a front cover of the communication device 10. The display module 14 and the display panel 16 can be separated or integrated, and the implementation is not limited. The display panel 16 is mounted between the display module 14 and the metal frame 12 and corresponds to the opening 24 of the metal frame 12 . The display panel 16 is made of a glass material, but is not limited to such a material. The metal back cover 18 has a substantially rectangular outline and is positioned substantially corresponding to the bottom of the body 22 for use as a rear cover of the communication device 10. The printed circuit board 20 is located between the metal frame 12 and the metal back cover 18. The printed circuit board 20 includes a first circuit block 26 and a second circuit block 28 electrically connected to the first circuit block 26 . . The body 22 is located between the metal frame 12 and the metal back cover 18 to mount the display module 14 , the display panel 16 , and the printed circuit board 20 to the body 22 . In addition, the body 22 is a non-conductor material, such as a plastic material, but is not limited to such a material.

3 shows an antenna configuration of a communication device according to an embodiment of the present invention. intention. 4 to 6 show schematic diagrams of an antenna arrangement in which the communication device 10 supports a first communication function, such as a Global Positioning System (GPS) function. The arrangement includes the aforementioned metal frame 12, the first circuit block 26 of the aforementioned printed circuit board 20, a first conductor 30, a second conductor 32, and the aforementioned metal back cover 18. Wherein, the foregoing metal frame 12 has a first portion 34 and a second portion 36 different from the position The first part is 34. In a preferred embodiment, the first portion 34 and the second portion 36 of the metal frame 12 are located at a right upper position relative to the display panel 16. The first circuit block 26 of the aforementioned printed circuit board 20 includes a signal terminal 38 and a ground segment 40. The aforementioned first conductor 30 is connected between the first portion 34 of the metal frame 12 and the signal terminal 38 of the first circuit block 26 of the printed circuit board 20. The aforementioned second conductor 32 is connected between the second portion 36 of the metal frame 12 and the ground segment 40 of the first circuit block 26 of the printed circuit board 20. When assembled, the aforementioned metal back cover 18 contacts the ground segment 40 of the first circuit block 26 of the printed circuit board 20.

7 to 10 show that the communication device 10 supports a second communication function. A schematic diagram of an antenna arrangement, such as the Global System for Mobile Communications (GSM) function. This configuration utilizes the aforementioned metal frame 12 as a common antenna, including the second circuit block 28 of the aforementioned printed circuit board 20, a third conductor 42, a fourth conductor 44, and a signal line 46. The second circuit block 28 of the printed circuit board 20 includes a signal terminal 48 and a ground segment 50. The aforementioned metal frame 12 has a third portion 52 and a fourth portion 54 different in position from the third portion 52. In a preferred embodiment, the third portion 52 and the fourth portion 54 of the metal frame 12 are located at a lower right position relatively close to the display panel 16. The aforementioned third conductor 42 is connected to the third portion 52 of the metal frame 12 and extends a length to the second circuit block 28 located adjacent to the printed circuit board 20. The aforementioned fourth conductor 44 is a second electric connection connecting the printed circuit board 20. The ground plane of the road block 28 is electrically connected to the ground segment 50, and at least one coupling pitch 56 is defined between the third conductor 42 and the fourth conductor 44. The signal terminal 48 of the second circuit block 28 of the printed circuit board 20 is electrically connected to the fourth portion 54 of the metal frame 12. In practice, the fourth portion 54 of the metal frame 12 can be connected or contacted through the aforementioned signal line 46; or, in another embodiment, the signal terminal 48 of the second circuit block 28 of the printed circuit board 20 can also be used. Directly connecting or contacting the fourth portion 54 of the metal frame 12 can be implemented without limitation. When assembled, the aforementioned metal back cover 18 contacts the ground segment 50 of the second circuit block 28 of the printed circuit board 20.

According to the above configuration, when the communication device 10 is powered by an external power When operating, for example, the energy of the battery, the metal frame 12 can serve as a common antenna for the first communication function (GPS) and the second communication function (GSM), and the antenna type is similar to a large loop antenna. The first conductor 30 and the second conductor 32 form a small loop antenna that is small relative to the metal frame 12 and is processed through the printed circuit board 20 to provide the communication capability required by the communication device 10. On the other hand, the third conductor 42 and the fourth conductor 44 are pre-configured to form an open state through the at least one coupling pitch 56, and the required antenna matching, such as impedance matching, can be adjusted according to requirements. The ground plane of the second circuit block 28 of the printed circuit board 20 and the ground segment 50 are used when grounded, assembled and in contact with the metal back cover 18.

According to the above description, the improved efficacy and advantages of the present invention are known. It is: the design of the antenna does not damage the appearance of the metal back cover and the metal frame, The familiarity has the advantage of being more beautiful, making the design of the entire communication device more diverse.

Although the present invention has been disclosed in the foregoing preferred embodiments, it is not The invention is defined by the scope of the appended claims.

10‧‧‧Communication device

12‧‧‧Metal frame

18‧‧‧Metal back cover

20‧‧‧Printed circuit board

26‧‧‧First circuit block

28‧‧‧Second circuit block

30‧‧‧First conductor

32‧‧‧Second conductor

42‧‧‧ Third conductor

44‧‧‧fourth conductor

Claims (5)

A communication device includes: a metal frame defining an opening, the metal frame having a first portion, a second portion being different from the first portion, a third portion, and a fourth portion different from the third portion a display module; a display panel mounted between the display module and the metal frame and corresponding to the opening of the metal frame; a metal back cover; a printed circuit board comprising a first circuit block and a second circuit block is electrically connected to the first circuit block, each block includes a signal end and a ground segment, wherein the ground segment is in contact with the metal back cover; a body is located at the metal frame and the Between the metal back covers, the body is a non-conductor material; a first conductor is connected between the first portion of the metal frame and the signal end of the first circuit block of the printed circuit board; a second conductor, Connecting between a second portion of the metal frame and a ground portion of the first circuit block of the printed circuit board; a third conductor coupled to the third portion of the metal frame; a fourth conductor connecting a grounding segment of the second circuit block of the printed circuit board, and defining at least one coupling pitch between the third conductor and the fourth conductor; wherein the second circuit block of the printed circuit board The signal end is electrically connected to the fourth portion of the metal frame. The communication device of claim 1, wherein the first portion and the second portion of the metal frame are located at a right upper position relatively close to the display panel. The communication device of claim 1, wherein the third portion and the fourth portion of the metal frame are located at a lower right position relatively close to the display panel. An antenna for a communication device includes: a metal frame defining an opening, the metal frame having a first portion, a second portion, a third portion, and a fourth portion; a metal back cover; a printed circuit board, The first circuit block and the second circuit block are electrically connected to the first circuit block, each block includes a signal end and a ground segment, wherein the ground segment is in contact with the metal back cover; a first conductor connected between the first portion of the metal frame and a signal end of the first circuit block of the printed circuit board; a second conductor connected to the second portion of the metal frame and the printed circuit board Between the grounding segments of a circuit block; a third conductor coupled to the third portion of the metal frame; and a fourth conductor coupled to the ground segment of the second circuit block of the printed circuit board, and defining at least between the third conductor and the fourth conductor a coupling pitch; wherein the signal end of the second circuit block of the printed circuit board is electrically connected to the fourth portion of the metal frame, and the second circuit coupled to the printed circuit board by the at least one coupling pitch The grounding segment of the block. The antenna of the communication device of claim 4, wherein the third conductor extends a length to a second circuit block located adjacent to the printed circuit board.