CN109546290B

CN109546290B - Mobile device

Info

Publication number: CN109546290B
Application number: CN201710859104.1A
Authority: CN
Inventors: 颜铭庆; 张琨盛; 黄士庭; 谢镇宇; 林敬基
Original assignee: Acer Inc
Current assignee: Acer Inc
Priority date: 2017-09-21
Filing date: 2017-09-21
Publication date: 2020-11-24
Anticipated expiration: 2037-09-21
Also published as: CN109546290A

Abstract

A mobile device, comprising: the antenna comprises a first non-conductive support element, a second non-conductive support element and an antenna structure, wherein the first non-conductive support element and the second non-conductive support element are adjacent to each other and have different heights. The antenna structure is formed on the first non-conductive support element and the second non-conductive support element, wherein the antenna structure comprises: a feed-in connection part, a first radiation part, and a second radiation part. The feeding connection portion is coupled to a feeding point. The first radiation part and the second radiation part are both coupled to the feed-in connection part, wherein the feed-in connection part is arranged between the first radiation part and the second radiation part.

Description

Mobile device

Technical Field

The present disclosure relates to mobile devices, and particularly to a mobile device and an antenna structure thereof.

Background

With the development of mobile communication technology, mobile devices have become increasingly popular in recent years, such as: portable computers, mobile phones, multimedia players and other portable electronic devices with mixed functions. To meet the demand of people, mobile devices generally have a function of wireless communication. Some cover long-range wireless communication ranges, such as: the mobile phone uses 2G, 3G, LTE (Long Term Evolution) system and its used frequency bands of 700MHz, 850MHz, 900MHz, 1800MHz, 1900MHz, 2100MHz, 2300MHz and 2500MHz for communication, while some cover short-distance wireless communication ranges, for example: Wi-Fi and Bluetooth systems use frequency bands of 2.4GHz, 5.2GHz, and 5.8GHz for communication.

In order to pursue the aesthetic appearance, designers nowadays often add elements of metal components to mobile devices. However, the added metal elements tend to adversely affect the antenna supporting wireless communication in the mobile device, thereby degrading the overall communication quality of the mobile device. Therefore, there is a need for a new mobile device and antenna structure to overcome the problems encountered in the conventional technology.

Disclosure of Invention

In a preferred embodiment, the present invention provides a mobile device, comprising: a first non-conductive support element; a second non-conductive support element, wherein the first non-conductive support element and the second non-conductive support element are adjacent to each other and have different heights; and an antenna structure formed on the first non-conductive support element and the second non-conductive support element, wherein the antenna structure comprises: a feeding connection part coupled to a feeding point; a first radiation part coupled to the feed-in connection part; and a second radiation part coupled to the feed-in connection part, wherein the feed-in connection part is between the first radiation part and the second radiation part.

In some embodiments, the first non-conductive support element is a cosmetic edge portion of the mobile device.

In some embodiments, the second non-conductive support element is an antenna placement stage or a display placement stage.

In some embodiments, the height of the first non-conductive support element is greater than the height of the second non-conductive support element.

In some embodiments, the antenna structure further comprises: and the second radiation part is coupled to the feed-in connection part through the short-circuit part, so that the feed-in connection part, the second radiation part and the short-circuit part form a closed ring together.

In some embodiments, the feeding connection portion, the second radiation portion, and the short circuit portion are only distributed on the second non-conductor support element.

In some embodiments, the first radiating portions are distributed on the first non-conductive support element and the second non-conductive support element simultaneously.

In some embodiments, the antenna structure covers a low frequency band between 2400MHz and 2500MHz, a first high frequency band between 5150MHz and 5350MHz, and a second high frequency band between 5350MHz and 5850 MHz.

In some embodiments, a total length of the feeding connection portion and the first radiation portion is equal to 0.25 times a wavelength of the low frequency band.

In some embodiments, a total length of the feed connection portion and the second radiation portion is equal to 0.25 times a wavelength of the second high frequency band.

In some embodiments, the total length of the feeding connection portion, the second radiation portion, and the short circuit portion is equal to 1 wavelength of the second high frequency band.

In some embodiments, the mobile device further comprises: a display; and a display frame adjacent to the display, wherein the display frame extends into a height difference gap defined by the first non-conductive support element and the second non-conductive support element.

In some embodiments, the mobile device further comprises: a coaxial cable disposed between the display and the second non-conductive support element.

In some embodiments, the coaxial cable includes a center conductor and a conductor housing, and the center conductor is coupled to the feed point.

In some embodiments, the mobile device further comprises: a metal back cover adjacent to the first non-conductor support element, the second non-conductor support element, the antenna structure, and the display; and a metal foil, wherein the conductor housing of the coaxial cable is coupled to the metal back cover via the metal foil.

In some embodiments, the first non-conductive support element, the second non-conductive support element, and the antenna structure form a separable antenna element.

In some embodiments, the display frame, and the metal back cover define an interior recessed area, and the separable antenna element is hidden in the interior recessed area or extracted from the interior recessed area.

Drawings

FIG. 1A is a top view of a mobile device according to an embodiment of the invention.

Fig. 1B is a side view of a mobile device according to an embodiment of the invention.

Fig. 2 is a return loss diagram illustrating an antenna structure of a mobile device according to an embodiment of the invention.

Fig. 3 is a diagram illustrating antenna efficiency of an antenna structure of a mobile device according to an embodiment of the invention.

Fig. 4 is a top view of a mobile device according to an embodiment of the invention.

Fig. 5A is a side view of a mobile device according to an embodiment of the invention.

Fig. 5B is a top view of a mobile device according to an embodiment of the invention.

Fig. 5C is a side view of a mobile device according to an embodiment of the invention.

Description of reference numerals:

100. 400, 500-mobile device;

110 to a first non-conductive support element;

120 to a second non-conductive support element;

130. 430-antenna structure;

140-feeding in the connecting part;

141-a first end of the feed-in connection;

142-a second end of the feed-in connection;

150 to a first radiation section;

151 to a first end of the first radiating section;

152-a second end of the first radiating section;

160 to a second radiation section;

161 to a first end of the second radiating section;

162 to a second end of the second radiating section;

470-short circuit part;

471 to a first end of the short circuit portion;

472 to a second end of the short circuit portion;

475-a rectangular non-metal area;

510-a display;

520 to a display frame;

530-height difference gap;

540-coaxial cable;

541-center lead of coaxial cable;

542-conductor housing of coaxial cable;

550-metal back cover;

560 to a metal foil;

570-concave area;

580 detachable antenna element;

FBL-low frequency band;

FBH 1-first high frequency band;

FBH2 to second high frequency band;

FP-feed point;

g1-first gap;

g2-second gap;

h1 and H2;

w1, W2, W3 and W4;

X-X axis;

Y-Y axis;

Z-Z axis.

Detailed Description

In order to make the objects, features and advantages of the present invention comprehensible, specific embodiments accompanied with figures are described in detail below.

Certain terms are used throughout the description and following claims to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. The present specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. The term "substantially" refers to a range of acceptable error within which one skilled in the art can solve the technical problem to achieve the basic technical result. In addition, the term "coupled" is used herein to encompass any direct or indirect electrical connection. Thus, if a first device couples to a second device, that connection may be through a direct electrical connection, or through an indirect electrical connection via other devices and connections.

FIG. 1A is a top view of a mobile device 100 according to an embodiment of the invention. Fig. 1B is a side view of the mobile device 100 according to an embodiment of the invention. Please refer to fig. 1A and 1B together. The mobile device 100 may be a Smart Phone (Smart Phone), a tablet Computer (Notebook Computer), or a Notebook Computer (Notebook Computer). As shown in fig. 1A and 1B, the mobile device 100 at least includes: a first non-conductive Supporting Element (non-conductive Supporting Element)110, a second non-conductive Supporting Element 120, and an Antenna Structure (Antenna Structure) 130. It should be understood that although not shown in fig. 1A and 1B, the mobile device 100 may further include other elements, such as: a Display Device (Display Device), a Speaker (Speaker), a Touch Control Module (Touch Control Module), a Power Supply Module (Power Supply Module), and a Housing (Housing).

The first non-conductive support element 110 and the second non-conductive support element 120 may be made of a plastic material. For example, the first non-conductive support element 110 can be an Appearance Edge Portion (Appearance Edge Portion) of the mobile device 100, which is an Edge Portion of the mobile device 100 that can be directly observed by the user with eyes. The second non-conductive support element 120 can be an Antenna Platform (Antenna Platform) or a Display Platform (Display Platform), which can be used to carry an Antenna structure or a Display.

The first non-conductive support element 110 and the second non-conductive support element 120 are adjacent to each other and have different heights in the Z-axis. For example, the height H1 of the first non-conductive support element 110 may be greater than the height H2 of the second non-conductive support element 120, wherein the height H1 may be more than 2 times the height H2. It should be noted that the term "adjacent" or "adjacent" in this specification may refer to the pitch of the corresponding elements being less than a predetermined distance (e.g., 1mm or less), and may also include the case where the corresponding elements are in direct contact with each other (i.e., the pitch is shortened to 0). In addition, the first non-conductive support element 110 and the second non-conductive support element 120 may have different widths in the Y-axis. For example, the width W1 of the first non-conductive support element 110 may be less than the width W2 of the second non-conductive support element 120. It must be understood that the shape of the first non-conductive support element 110 and the second non-conductive support element 120 is not particularly limited in the present invention and may be modified according to different needs.

The antenna structure 130 may be made of a metal material. In detail, the antenna structure 130 includes a Feeding Connection Element (Feeding Connection Element)140, a first Radiation Element (Radiation Element)150, and a second Radiation Element 160, wherein the Feeding Connection Element 140 is substantially between the first Radiation Element 150 and the second Radiation Element 160. The antenna structure 130 is a three-dimensional structure and is formed on the first non-conductive support element 110 and the second non-conductive support element 120 with a height difference. For example, the first radiation portions 150 may be distributed on the first non-conductor support element 110 and the second non-conductor support element 120 at the same time, and the feed connection portions 140 and the second radiation portions 160 may be distributed on the second non-conductor support element 120 only.

The feeding connection portion 140 may substantially have an L-shape. The Feeding connection portion 140 has a first end 141 and a second end 142, wherein the first end 141 of the Feeding connection portion 140 is coupled to a Feeding Point (FP), and the Feeding Point FP is further coupled to a signal source (not shown). The first radiation portion 150 may have a substantially straight bar shape or an L-shape. The first radiation portion 150 has a first End 151 and a second End 152, wherein the first End 151 of the first radiation portion 150 is coupled to the second End 142 of the feeding connection portion 140, and the second End 152 of the first radiation portion 150 is an Open End (Open End). A first gap G1, which may be substantially in the shape of an elongated straight strip, may be formed between the first radiating portion 150 and the feeding connection portion 140. The second radiation portion 160 may substantially have an L-shape. The second radiation portion 160 has a first End 161 and a second End 162, wherein the first End 161 of the second radiation portion 160 is coupled to the second End 142 of the feeding connection portion 140, and the second End 162 of the second radiation portion 160 is an Open End (Open End). A second gap G2, which may be substantially rectangular, may be formed between the second radiation portion 160 and the feeding connection portion 140. The length of the second radiation part 160 is smaller than that of the first radiation part 150. For example, the length of the first radiation part 150 may be 3 times or more the length of the second radiation part 160. The width of the first radiation portion 150 is greater than the width of the feeding connection portion 140 and is also greater than the width of the second radiation portion 160. The second end 152 of the first radiation portion 150 and the second end 162 of the second radiation portion 160 may extend toward the same direction, for example: all extending in the-X direction.

Fig. 2 is a Return Loss (Return Loss) diagram of the antenna structure 130 of the mobile device 100 according to an embodiment of the invention, wherein the horizontal axis represents the operating frequency (MHz) and the vertical axis represents the Return Loss (dB). According to the measurement results shown in fig. 2, the antenna structure 130 covers a low frequency band FBL, a first high frequency band FBH1, and a second high frequency band FBH2, wherein the low frequency band FBL is between 2400MHz and 2500MHz, the first high frequency band FBH1 is between 5150MHz and 5350MHz, and the second high frequency band FBH2 is between 5350MHz and 5850 MHz. Thus, the antenna structure 130 will support at least the WLAN (Wireless Local Area networks)2.4GHz/5GHz dual band operation.

Fig. 3 is a graph showing Antenna Efficiency (Antenna Efficiency) of the Antenna structure 130 of the mobile device 100 according to an embodiment of the invention, wherein the horizontal axis represents operating frequency (MHz) and the vertical axis represents Antenna Efficiency (dB). According to the measurement results shown in fig. 3, the antenna structure 130 has an antenna efficiency of about-5 dB in the low frequency band FBL and an antenna efficiency of about-6 dB in the first high frequency band FBH1 and the second high frequency band FBH2, which can satisfy the practical application requirements of the conventional mobile communication device.

The antenna operation principle and the element size of the mobile device 100 may be as follows. The feed connection 140 and the first radiation portion 150 can jointly excite a Fundamental resonance Mode (Fundamental resonance Mode) to form the low frequency band FBL. The feeding connection portion 140 and the first radiation portion 150 can further jointly excite a high-Order resonance Mode (high-Order resonance Mode) to form the first high-frequency band FBH1(2 frequency doubling). The feed connection 140 and the second radiation part 160 can jointly excite a resonant mode to form the second high frequency band FBH 2. The total length of the feed connection portion 140 and the first radiation portion 150 (i.e., the total length from the first end 141, through the second end 142, the first end 151, and to the second end 152) may be substantially equal to 0.25 times the wavelength (λ/4) of the low frequency band FBL. The total length of the feed connection 140 and the second radiation portion 160 (i.e., the total length from the first end 141, through the second end 142, the first end 161, and to the second end 162) may be substantially equal to 0.25 times the wavelength (λ/4) of the second high frequency band FBH 2. The height H1 of the first non-conductive support element 110 may be between 3.6mm to 4mm, for example: 4 mm. The height H2 of the second non-conductive support element 120 may be between 1.6mm and 1.8mm, for example: 1.8 mm. The width W1 of the first non-conductive support element 110 may be between 1.5mm and 1.8mm, for example: 1.5 mm. The width W2 of the second non-conductive support element 120 may be between 4.7mm to 5mm, for example: 5 mm. The width of the first gap G1 may be less than the width of the second gap G2. For example, the width of the second gap G2 may be more than 2 times the width of the first gap G1. The above size ranges are found from multiple experimental results, which help to optimize the operating band and Impedance Matching (Impedance Matching) of the antenna structure 130.

In the mobile device 100 of the present invention, the Antenna structure 130 can be a hidden Antenna (Invisible Antenna). For example, the antenna structure 130 can be integrated with the edge portion of the mobile device 100 (e.g., the first non-conductive support element 110, commonly referred to as "thick") and utilize the height difference between the first non-conductive support element 110 and the second non-conductive support element 120 to achieve the purpose of hidden design. In addition, the edge portion of the mobile device 100 and the antenna structure 130 can be further processed by a Spray and Coat Process (Spray and Coat Process) to reduce the visual difference between the non-metal and metal portions and to enhance the appearance uniformity of the mobile device 100.

Fig. 4 is a top view of a mobile device 400 according to an embodiment of the invention. Fig. 4 is similar to fig. 1A. In the embodiment of fig. 4, an antenna structure 430 of the mobile device 400 further includes a short Element 470. The short circuit portions 470 are made of metal and can be distributed on the second non-conductive support element 120 only. The short circuit portion 470 may have a substantially L-shape, wherein the second radiation portion 160 is coupled to the feed connection portion 140 through the short circuit portion 470, such that the feed connection portion 140, the second radiation portion 160, and the short circuit portion 470 together form a Closed Loop (Closed Loop) that surrounds a rectangular non-metal region 475. In detail, the short circuit portion 470 has a first end 471 and a second end 472, wherein the first end 471 of the short circuit portion 470 is coupled to the second end 162 of the second radiation portion 160, and the second end 472 of the short circuit portion 470 is coupled to an intermediate portion of the feed connection portion 140 (the intermediate portion is between the first end 141 and the second end 142 of the feed connection portion 140). The width W3 of the first end 471 of the short circuit 470 is less than the width W4 of the second end 472 of the short circuit 470. For example: the width W4 may be 3 times or more the width W3 to fine tune the high frequency impedance matching. According to the actual measurement results, the antenna structure 430 may also cover the low frequency band FBL between 2400MHz and 2500MHz, the first high frequency band FBH1 between 5150MHz and 5350MHz, and the second high frequency band FBH2 between 5350MHz and 5850 MHz. In the embodiment of fig. 4, the feeding connection portion 140, the second radiation portion 160, and the short circuit portion 470 can jointly excite a resonant mode to form the second high frequency band FBH 2. The total length of the feeding connection portion 140, the second radiation portion 160, and the short circuit portion 470 (i.e., the total length from the first end 141, through the second end 142, the first end 161, the second end 162, the first end 471, and the second end 472) may be substantially equal to 1 wavelength (1 λ) of the second high frequency band FBH 2. The remaining features of the mobile device 400 of fig. 4 are similar to those of the mobile device 100 of fig. 1A and 1B, so that similar operations can be achieved in both embodiments.

Fig. 5A is a side view of a mobile device 500 according to an embodiment of the invention. Fig. 5A is similar to fig. 1B. In the embodiment of fig. 5A, the mobile Device 500 further includes a Display (Display Device)510, a Display Frame (Display Frame)520, a Coaxial Cable (Coaxial Cable)540, a Metal Back Cover (Metal Back Cover)550, and a Metal Foil (Metal Foil) 560. Fig. 5B is a top view of the mobile device 500 according to an embodiment of the invention, in which only the first non-conductive support element 110, the second non-conductive support element 120, the antenna structure 130, and the coaxial cable 540 are shown to avoid visual obstruction, and the rest of the elements are omitted. Please refer to fig. 5A and 5B.

In the embodiment of fig. 5A and 5B, the mobile device 500 is a notebook computer, and the metal back cover 550 and the display frame 520 are commonly referred to as "a-piece" and "B-piece", respectively, in the notebook computer. The display frame 520 may be made of a non-conductive material, such as: and (3) plastic materials. The display frame 520 is adjacent to the display 510 and may surround four edges of the display 510. In particular, display frame 520 extends into a Height-Difference Notch 530 defined by first non-conductive support element 110 and second non-conductive support element 120 (i.e., Height-Difference Notch 530 is created because Height H1 of first non-conductive support element 110 is greater than Height H2 of second non-conductive support element 120). Since the display frame 520 is a non-conductor, it can be directly attached to the first non-conductor support element 110 and the antenna structure 130 to improve the structural stability of the whole, but not to adversely affect the radiation pattern of the antenna structure 130. In addition, the display 510 preferably does not directly contact the antenna structure 130 because it includes metal elements.

A signal source (not shown) may be coupled to the feed point FP through the coaxial cable 540 to excite the antenna structure 130. In detail, the coaxial cable 540 includes a Central Conductive Line (541) and a Conductive Housing (542), wherein the Central Conductive Line 541 of the coaxial cable 540 is coupled to the feed point FP, and the Conductive Housing 542 of the coaxial cable 540 is coupled to the metal back cover 550 via the metal foil 560. It should be noted that coaxial cable 540 is disposed between display 510 and second non-conductive support element 120, and adjacent to metal back cover 550. This design can hide the coaxial cable 540 in the existing internal space of the mobile device 100, so as to avoid the interference of the coaxial cable 540 on the antenna structure 130 and other elements of the mobile device 500. The metal foil 560 may be a grounding copper foil, which is attached to the conductor housing 542 of the coaxial cable 540 and extends to the metal back cover 550. The metal back cover 550 is adjacent to the first non-conductive support element 110, the second non-conductive support element 120, the antenna structure 130, and the display 510, such that the metal back cover 550 can be regarded as a ground plane of the antenna structure 130. With this design, the metal back cover 550 does not interfere with the radiation pattern of the antenna structure 130, and can further enhance the radiation efficiency of the antenna structure 130.

Fig. 5C is a side view of the mobile device 500 according to an embodiment of the invention. Please refer to fig. 5A, 5B, and 5C. In some embodiments, the display 510, the display frame 520, and the metal back cover 550 together define a recessed area (Concave Region)570 of the mobile device 500, and the first non-conductive support Element 110, the second non-conductive support Element 120, and the Antenna structure 130 together form a Separable Antenna Element (Separable Antenna Element) 580. In some embodiments, the detachable antenna element 580 is attached to the display frame 520 (part B) and is an extension of the display frame 520; in other embodiments, the separable antenna element 580 is attached to the metal back cover 550 (part a) and is an extension of the metal back cover 550. In detail, the detachable antenna element 580 has a slidable mechanism, which can be selectively hidden in the concave region 570 of the mobile device 500 or pulled out from the concave region 570 of the mobile device 500 by about 1 to 2 mm. For example, if the detachable antenna element 580 is hidden in the recessed area 570, the overall device appearance of the mobile device 500 may be enhanced; conversely, if the separable antenna element 580 is pulled out of the recessed area 570 by about 1 to 2mm, the radiation efficiency of the antenna structure 130 can be further enhanced. The antenna structure 130 can be replaced by the antenna structure 430 of fig. 4 without affecting the technical effect of the present invention. In other embodiments, the mobile device 500 may also have a plurality of recessed areas 570 for receiving a plurality of separable antenna elements 580, thereby forming a multiple-Input and multiple-Output (MIMO) antenna system. The remaining features of the mobile device 500 of fig. 5A, 5B, and 5C are similar to those of the mobile device 100 of fig. 1A and 1B, so that similar operations can be achieved in both embodiments.

The present invention provides a novel mobile device including a concealed antenna structure. The antenna structure can be mutually integrated with a metal back cover (A piece) or a display frame (B piece), and effectively utilizes the appearance edge part of the mobile device and the space adjacent to the appearance edge part. In general, the present invention has at least advantages of small size, wide frequency band, and beautiful appearance of the mobile device, so it is suitable for various Narrow frame (Narrow Border) mobile communication devices.

It is noted that the sizes, shapes and frequency ranges of the above-mentioned components are not limitations of the present invention. The antenna designer can adjust these settings according to different needs. The mobile device and antenna structure of the present invention are not limited to the states illustrated in fig. 1-5. The present invention may include only any one or more features of any one or more of the embodiments of fig. 1-5. In other words, not all illustrated features may be implemented in the mobile device and antenna structure of the present invention.

Ordinal numbers such as "first," "second," "third," etc., in the specification and claims are not necessarily in sequential order, but are merely used to identify two different elements having the same name.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A mobile device, comprising:

a first non-conductive support element;

a second non-conductive support element, wherein the first non-conductive support element and the second non-conductive support element are adjacent to each other and have different heights; and

an antenna structure formed on the first non-conductive support element and the second non-conductive support element, wherein the antenna structure comprises:

a feeding connection part coupled to a feeding point;

a first radiation part coupled to the feed-in connection part; and

a second radiation part coupled to the feed-in connection part, wherein the feed-in connection part is between the first radiation part and the second radiation part;

a display; and

a display frame adjacent to the display, wherein the display frame extends into a height difference gap defined by the first non-conductive support element and the second non-conductive support element.

2. The mobile device of claim 1 wherein the first non-conductive support element is a cosmetic edge portion of the mobile device.

3. The mobile device of claim 1 wherein the second non-conductive support element is an antenna placement stage or a display placement stage.

4. The mobile device of claim 1, wherein a height of the first non-conductive support element is greater than a height of the second non-conductive support element.

5. The mobile device of claim 1, wherein the antenna structure further comprises:

and the second radiation part is coupled to the feed-in connection part through the short-circuit part, so that the feed-in connection part, the second radiation part and the short-circuit part form a closed ring together.

6. The mobile device according to claim 5, wherein the feeding connection portion, the second radiation portion, and the short circuit portion are disposed only on the second non-conductive supporting element.

7. The mobile device of claim 1, wherein the first radiating portions are distributed on the first non-conductive support element and the second non-conductive support element simultaneously.

8. The mobile device of claim 5, wherein the antenna structure covers a low frequency band between 2400MHz and 2500MHz, a first high frequency band between 5150MHz and 5350MHz, and a second high frequency band between 5350MHz and 5850 MHz.

9. The mobile device according to claim 8, wherein a total length of the feeding connection portion and the first radiation portion is equal to 0.25 times a wavelength of the low frequency band.

10. The mobile device according to claim 8, wherein a total length of the feeding connection portion and the second radiation portion is equal to 0.25 times a wavelength of the second high frequency band.

11. The mobile device according to claim 8, wherein a total length of the feeding connection portion, the second radiation portion, and the short circuit portion is equal to 1 wavelength of the second high frequency band.

12. The mobile device of claim 1, further comprising:

a coaxial cable disposed between the display and the second non-conductive support element.

13. The mobile device of claim 12, wherein the coaxial cable comprises a center conductor and a conductor housing, the center conductor being coupled to the feed point.

14. The mobile device of claim 13, further comprising:

a metal back cover adjacent to the first non-conductor support element, the second non-conductor support element, the antenna structure, and the display; and

a metal foil, wherein the conductor housing of the coaxial cable is coupled to the metal back cover via the metal foil.

15. The mobile device of claim 14 wherein the first non-conductive support element, the second non-conductive support element, and the antenna structure form a separable antenna element.

16. The mobile device of claim 15 wherein the display, the display frame, and the metal back cover define an interior recessed area, and the separable antenna element is hidden in the interior recessed area or extracted from the interior recessed area.