CN109546290B - mobile device - Google Patents

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 invention relates to a mobile device, in particular to a mobile device and an antenna structure thereof.

Background technique

With the development of mobile communication technology, mobile devices have become more and more common in recent years, such as laptop computers, mobile phones, multimedia players and other portable electronic devices with mixed functions. In order to meet people's needs, mobile devices usually have the function of wireless communication. Some cover long-distance wireless communication range, for example: mobile phones use 2G, 3G, LTE (Long Term Evolution) systems and their use of 700MHz, 850MHz, 900MHz, 1800MHz, 1900MHz, 2100MHz, 2300MHz and 2500MHz frequency bands for communication, while Some cover the short-range wireless communication range, for example: Wi-Fi, Bluetooth systems use the 2.4GHz, 5.2GHz and 5.8GHz frequency bands to communicate.

In pursuit of aesthetic appearance, nowadays designers often add elements of metal elements into mobile devices. However, the newly added metal components are likely to have a negative impact on the antenna supporting wireless communication in the mobile device, thereby reducing the overall communication quality of the mobile device. Therefore, it is necessary to propose a new mobile device and antenna structure to overcome the problems faced by the conventional technology.

SUMMARY OF THE INVENTION

In a preferred embodiment, the present invention provides a mobile device comprising: a first non-conductor supporting element; a second non-conducting supporting element, wherein the first non-conducting supporting element and the second non-conducting supporting element are adjacent to each other and having different heights; and an antenna structure formed on the first non-conductor support element and the second non-conductor support element, wherein the antenna structure includes: a feed connection portion coupled to a feed point; a first radiating part, coupled to the feeding connection part; and a second radiating part, coupled to the feeding connecting part, wherein the feeding connecting part is between the first radiating part and the first radiating part between the two radiating parts.

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

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

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 includes: a short-circuit portion, wherein the second radiation portion is coupled to the feed-in connection portion via the short-circuit portion, such that the feed-in connection portion, the second radiation portion, and The short-circuit parts together form a closed loop.

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

In some embodiments, the first radiating portion is distributed on the first non-conductive supporting element and the second non-conducting supporting element at the same time.

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

In some embodiments, the total length of the feed connection portion and the first radiating portion is equal to 0.25 wavelengths of the low frequency band.

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

In some embodiments, the total length of the feed-in connection part, the second radiation part, and the short-circuit part is equal to 1 wavelength of the second high frequency band.

In some embodiments, the mobile device further includes: a display; and a display frame adjacent to the display, wherein the display frame extends into the boundary defined by the first nonconductive support element and the second nonconductive support element A height difference gap.

In some embodiments, the mobile device further includes: 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 shell, and the center conductor is coupled to the feed point.

In some embodiments, the mobile device further includes: a metal back cover adjacent to the first non-conductive support element, the second non-conductive support element, the antenna structure, and the display; and a metal foil, wherein The conductor shell 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, the display frame, and the metal back cover define a concave area, and the detachable antenna element is hidden in the concave area or extracted from the concave area come out.

Description of drawings

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

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

FIG. 2 is a return loss diagram showing an antenna structure of a mobile device according to an embodiment of the present invention.

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

FIG. 4 is a top view showing a mobile device according to an embodiment of the present invention.

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

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

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

Description of reference numbers:

100, 400, 500 to mobile devices;

110～the first non-conductor supporting element;

120～Second non-conductor supporting element;

130, 430 ~ antenna structure;

140～feed-in connection part;

141～the first end of the feed-in connection part;

142～the second end of the feed-in connection part;

150 to the first radiation part;

151～the first end of the first radiation part;

152～the second end of the first radiation part;

160 to the second radiation part;

161～the first end of the second radiation part;

162～the second end of the second radiation part;

470～Short circuit part;

471 ~ the first end of the short-circuit part;

472 ~ the second end of the short circuit;

475～rectangular non-metallic area;

510～display;

520～display frame;

530～height difference gap;

540～coaxial cable;

541～Central conductor of coaxial cable;

542～Conductor shell of coaxial cable;

550～metal back cover;

560～metal foil;

570 ~ concave area;

580～Separable antenna elements;

FBL ~ low frequency band;

FBH1 ~ the first high frequency band;

FBH2 ~ the second high frequency band;

FP ~ feed point;

G1 ~ the first gap;

G2～Second gap;

H1, H2 ~ height;

W1, W2, W3, W4 ~ width;

X～X axis;

Y～Y axis;

Z to Z axis.

Detailed ways

In order to make the objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are exemplified below, and are described in detail as follows in conjunction with the accompanying drawings.

Certain terms are used in the specification and claims to refer to particular elements. It should be understood by those skilled in the art that hardware manufacturers may refer to the same element by different nouns. The description and claims do not use the difference in name as a way to distinguish elements, but use the difference in function of the elements as a criterion for distinguishing. The words "including" and "including" mentioned throughout the specification and claims are open-ended terms and should be interpreted as "including but not limited to". The word "substantially" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and achieve the basic technical effect. Furthermore, the term "coupled" in this specification includes any direct and indirect electrical connection means. Therefore, if a first device is described as being coupled to a second device, it means that the first device can be directly electrically connected to the second device, or indirectly electrically connected to the second device through other devices or connecting means. Second device.

FIG. 1A is a top view showing a mobile device 100 according to an embodiment of the present invention. FIG. 1B is a side view showing the mobile device 100 according to an embodiment of the present invention. Please refer to FIGS. 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 FIGS. 1A and 1B , the mobile device 100 at least includes: a first nonconductive supporting element 110 , a second nonconductive supporting element 120 , and an antenna structure 130 . It must be understood that, although not shown in FIGS. 1A and 1B , the mobile device 100 may further include other components, such as a display device, a speaker, a touch control module, a power supply Module (Power Supply Module), and a housing (Housing).

The first non-conductor supporting element 110 and the second non-conducting supporting element 120 can be made of plastic material. For example, the first non-conductive support element 110 may be an Appearance Edge Portion of the mobile device 100 , which refers to an edge portion of the mobile device 100 that can be directly observed by the user's eyes. The second non-conductive support element 120 can be an Antenna Placement Platform or a Display Placement Platform, which can be used to carry an antenna structure or a display.

The first non-conductor support element 110 and the second non-conductor 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-conductor supporting element 110 may be greater than the height H2 of the second non-conducting supporting element 120 , wherein the aforementioned height H1 may be more than twice the aforementioned height H2 . It must be noted that the term "adjacent" or "adjacent" in this specification may mean that the distance between the corresponding two elements is less than a predetermined distance (for example: 1mm or shorter), and may also include the two corresponding elements in direct contact with each other. case (ie, the aforementioned pitch is shortened to 0). Additionally, the first non-conductor support element 110 and the second non-conductor support element 120 may have different widths on the Y-axis. For example, the width W1 of the first non-conductor support element 110 may be smaller than the width W2 of the second non-conductor support element 120 . It must be understood that the shapes of the first non-conductor supporting element 110 and the second non-conducting supporting element 120 are not particularly limited in the present invention, and can be adjusted according to different needs.

The antenna structure 130 can be made of metal material. In detail, the antenna structure 130 includes a feeding connection element 140 , a first radiation element 150 , and a second radiation element 160 , wherein the feeding connection element 140 is substantially between the first radiation element 140 . between a radiation part 150 and a second radiation part 160 . The antenna structure 130 is a three-dimensional structure and is formed on the first non-conductive supporting element 110 and the second non-conducting supporting element 120 having a height difference. For example, the first radiating parts 150 can be distributed on the first non-conductor supporting element 110 and the second non-conducting supporting element 120 at the same time, while the feeding connection parts 140 and the second radiating parts 160 can be distributed only on the second non-conducting supporting element 120 on.

The feed-in connection portion 140 may be substantially L-shaped. The feeding connection part 140 has a first end 141 and a second end 142 , wherein the first end 141 of the feeding connection part 140 is coupled to a feeding point (Feeding Point) FP, and the feeding point FP can be and then coupled to a signal source (not shown). The first radiating portion 150 may be roughly in a straight bar shape or an L shape. The first radiating part 150 has a first end 151 and a second end 152 , wherein the first end 151 of the first radiating part 150 is coupled to the second end 142 of the feeding connection part 140 , and the first radiating part 150 The second end 152 is an open end. A first gap G1 may be formed between the first radiating portion 150 and the feeding connection portion 140 , which may be approximately in the shape of an elongated straight bar. The second radiating portion 160 may be substantially L-shaped. The second radiating part 160 has a first end 161 and a second end 162 , wherein the first end 161 of the second radiating part 160 is coupled to the second end 142 of the feeding connection part 140 , and the second radiating part 160 The second end 162 is an open end. A second gap G2 may be formed between the second radiating portion 160 and the feeding connection portion 140 , which may be approximately a rectangle. 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 more than three times the length of the second radiation part 160 . The width of the first radiating portion 150 is greater than the width of the feeding connecting portion 140 and also greater than the width of the second radiating portion 160 . The second end 152 of the first radiating portion 150 and the second end 162 of the second radiating portion 160 may extend toward the same direction, for example, both extend toward the -X axis direction.

2 is a return loss diagram showing the antenna structure 130 of the mobile device 100 according to an embodiment of the present invention, wherein the horizontal axis represents the operating frequency (MHz) and the vertical axis represents the return loss (dB). According to the measurement result of FIG. 2 , the antenna structure 130 can cover 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 The high frequency band FBH1 is between 5150MHz and 5350MHz, and the second high frequency band FBH2 is between 5350MHz and 5850MHz. Therefore, the antenna structure 130 can at least support 2.4GHz/5GHz dual-band operation of WLAN (Wireless Local Area Networks).

3 is a graph showing the antenna efficiency (Antenna Efficiency) of the antenna structure 130 of the mobile device 100 according to an embodiment of the present invention, wherein the horizontal axis represents the operating frequency (MHz), and the vertical axis represents the antenna efficiency (dB). According to the measurement result of FIG. 3 , the antenna efficiency of the antenna structure 130 in the low frequency band FBL can reach about -5dB, and the antenna efficiency in the first high frequency band FBH1 and the second high frequency band FBH2 can reach about -6dB, This can already meet the practical application requirements of general mobile communication devices.

The principles of antenna operation and component dimensions of the mobile device 100 may be as follows. The feed connection portion 140 and the first radiation portion 150 can be jointly excited to generate a Fundamental Resonant Mode, so as to form the aforementioned low frequency band FBL. The feeding connecting portion 140 and the first radiating portion 150 can further be jointly excited to generate a higher-order resonant mode, so as to form the aforementioned first high-frequency band FBH1 (frequency doubling). The feeding connecting portion 140 and the second radiating portion 160 can be jointly excited to generate a resonance mode, so as to form the aforementioned second high frequency band FBH2. The total length of the feed connection portion 140 and the first radiating portion 150 (that is, the total length from the first end 141, through the second end 142, the first end 151, and then to the second end 152) may be approximately equal to the low frequency 0.25 times the wavelength (λ/4) of the frequency band FBL. The total length of the feeding connection part 140 and the second radiating part 160 (that is, the total length from the first end 141, through the second end 142, the first end 161, and then to the second end 162) may be approximately equal to the first end 141. 0.25 times the wavelength (λ/4) of the high frequency band FBH2. The height H1 of the first non-conductor support element 110 may be between 3.6 mm and 4 mm, for example: 4 mm. The height H2 of the second non-conductor support element 120 may be between 1.6 mm and 1.8 mm, for example: 1.8 mm. The width W1 of the first non-conductor support element 110 may be between 1.5mm and 1.8mm, for example: 1.5mm. The width W2 of the second non-conductor support element 120 may be between 4.7 mm and 5 mm, eg, 5 mm. The width of the first gap G1 may be smaller than the width of the second gap G2. For example, the width of the second gap G2 may be more than twice the width of the first gap G1. The above size ranges are obtained according to multiple experimental results, which help to optimize the operating frequency 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 used as an invisible antenna. For example, the antenna structure 130 can be integrated with the edge portion of the appearance of the mobile device 100 (eg, the first non-conductive support element 110, commonly known as "meat thickness"), and the first non-conductive support element 110 and the second non-conductive support element 110 can be used. The height difference between the support elements 120 achieves the purpose of concealing the design. In addition, a spray and coating process may be used for the appearance edge portion of the mobile device 100 and the antenna structure 130 to reduce the visual difference between the non-metallic and metal portions, and to beautify the appearance consistency of the mobile device 100 .

FIG. 4 is a top view showing a mobile device 400 according to an embodiment of the present invention. Figure 4 is similar to Figure 1A. In the embodiment of FIG. 4 , an antenna structure 430 of the mobile device 400 further includes a shorting element 470 . The short-circuit portion 470 is made of metal material and can be distributed only on the second non-conductor supporting element 120 . The short-circuit portion 470 may be substantially L-shaped, wherein the second radiation portion 160 is coupled to the feed-in connection portion 140 via the short-circuit portion 470 , so that the feed-in connection portion 140 , the second radiation portion 160 , and the short-circuit portion 470 together form a Closed Loop, the closed loop surrounds a rectangular non-metallic area 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 first end 471 of the short-circuit portion 470 is coupled to the second end 162 of the second radiation portion 160 . The two ends 472 are coupled to a middle portion of the feed connection portion 140 (the middle 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 portion 470 is smaller than the width W4 of the second end 472 of the short-circuit portion 470 . For example, the aforementioned width W4 may be more than three times the aforementioned width W3, so as to fine-tune the high-frequency impedance matching. According to the actual measurement results, the antenna structure 430 can 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 between 5350MHz and 5850MHz. High frequency band FBH2. In the embodiment of FIG. 4 , the feeding connecting portion 140 , the second radiating portion 160 , and the short-circuiting portion 470 can be jointly excited to generate a resonance mode to form the aforementioned second high frequency band FBH2 . The total length of the feed connection portion 140 , the second radiation portion 160 , and the short-circuit portion 470 (ie, from the first end 141 , through the second end 142 , the first end 161 , the second end 162 , and the first end 471 ) , and the total length to the second end 472 ) may be approximately equal to 1 wavelength (1λ) of the second high frequency band FBH2 . The remaining features of the mobile device 400 in FIG. 4 are similar to those in the mobile device 100 in FIGS. 1A and 1B , so both embodiments can achieve similar operation effects.

FIG. 5A is a side view showing a mobile device 500 according to an embodiment of the present invention. Figures 5A and 1B are similar. In the embodiment of FIG. 5A , the mobile device 500 further includes a Display Device 510 , a Display Frame 520 , a Coaxial Cable 540 , and a Metal BackCover 550 , and a metal foil (Metal Foil) 560. 5B is a top view showing the mobile device 500 according to an embodiment of the present invention, in order to avoid visual obscuring, only the first non-conductive supporting element 110 , the second non-conducting supporting element 120 , the antenna structure 130 , and the coaxial cable are shown Line 540, while the remaining elements are omitted. Please refer to FIGS. 5A and 5B together.

In the embodiments of FIGS. 5A and 5B , the mobile device 500 is a notebook computer, and the metal back cover 550 and the display frame 520 are referred to as “A piece” and “B piece” commonly known as notebook computers, respectively. The display frame 520 can be made of a non-conductive material, such as plastic material. The display frame 520 is adjacent to the display 510 and can surround the four edges of the display 510 . In detail, the display frame 520 extends into a Height-Difference Notch 530 defined by the first non-conductor supporting element 110 and the second non-conducting supporting element 120 (that is, because the first non-conducting supporting element 120 The height H1 of the 110 is greater than the height H2 of the second non-conductor supporting element 120 , so the aforementioned height difference gap 530 is generated between the two. Since the display frame 520 is non-conductor, it can be directly attached to the first non-conductor support element 110 and the antenna structure 130 to improve the overall structural stability, but will not adversely affect the radiation pattern of the antenna structure 130 . In addition, since the display 510 includes metal components, it is not suitable for direct contact with the antenna structure 130 .

A signal source (not shown) can be coupled to the feed point FP via the coaxial cable 540 to excite the antenna structure 130 . In detail, the coaxial cable 540 includes a central conductor (Central Conductive Line) 541 and a conductive housing (Conductive Housing) 542, wherein the central conductor 541 of the coaxial cable 540 is coupled to the feeding point FP, and the same The conductor shell 542 of the coaxial cable 540 is coupled to the metal back cover 550 via the metal foil 560 . It must be noted that the coaxial cable 540 is disposed between the display 510 and the second non-conductor support element 120 and is adjacent to the 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 prevent the coaxial cable 540 from interfering with the antenna structure 130 and other components of the mobile device 500 . The metal foil 560 can be a ground copper foil, which can be attached to the conductor shell 542 of the coaxial cable 540 and then extended 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 , so that the metal back cover 550 can be regarded as a ground plane of the antenna structure 130 . Under this design, the metal back cover 550 not only does not interfere with the radiation pattern of the antenna structure 130 , but also further enhances the radiation efficiency of the antenna structure 130 .

FIG. 5C is a side view showing the mobile device 500 according to an embodiment of the present invention. Please refer to FIGS. 5A , 5B and 5C together. In some embodiments, the display 510 , the display frame 520 , and the metal back cover 550 together define a concave region 570 of the mobile device 500 , and the first non-conductive supporting element 110 and the second non-conducting supporting element 570 120 , and the antenna structure 130 together form a Separable Antenna Element 580 . In some embodiments, the detachable antenna element 580 is attached to the display frame 520 (piece B) as an extension of the display frame 520; in other embodiments, the detachable antenna element 580 is attached to the metal back cover 550 (piece A), and as an extension of the metal back cover 550. In detail, the detachable antenna element 580 has a sliding mechanism, which can be selectively hidden in the concave area 570 of the mobile device 500 or extracted from the concave area 570 of the mobile device 500 by about 1 to 2mm. For example, if the detachable antenna element 580 is hidden in the concave area 570, the overall device appearance of the mobile device 500 can be beautified; on the contrary, if the detachable antenna element 580 is extracted from the concave area 570 by about 1 to 2 mm, then The radiation efficiency of the antenna structure 130 can be further enhanced. The aforementioned antenna structure 130 can also 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 concave regions 570 to accommodate a plurality of separable antenna elements 580, thereby forming a multi-input and multi-output (MIMO) antenna system. The remaining features of the mobile device 500 of FIGS. 5A , 5B and 5C are similar to those of the mobile device 100 of FIGS. 1A and 1B , so the two embodiments can achieve similar operation effects.

The present invention proposes a novel mobile device including a hidden antenna structure. Such an antenna structure can be integrated with a metal back cover (piece A) or a display frame (piece B), and can effectively utilize the outer edge of the mobile device and its adjacent space. Generally speaking, the present invention has at least the advantages of small size, wide frequency band, and beautifying the appearance of the mobile device, so it is very suitable to be applied to various mobile communication devices with narrow borders.

It should be noted that the above-mentioned component size, component shape, and frequency range are not limitations of the present invention. Antenna designers can adjust these settings according to different needs. The mobile device and the antenna structure of the present invention are not limited to the states illustrated in FIGS. 1-5 . The present invention may include only any one or more of the features of any one or more of the embodiments of Figures 1-5. In other words, not all of the illustrated features need to be simultaneously implemented in the mobile device and antenna structure of the present invention.

The ordinal numbers in this specification and the claims, such as "first", "second", "third", etc., do not have a sequential relationship with each other, and are only used to identify two people with the same name. different components.

Although the present invention is disclosed above with preferred embodiments, it is not intended to limit the scope of the present invention. Any person skilled in the art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, this The scope of protection of the invention shall be defined by the appended claims.

Claims (16)

1. A mobile device comprising: a first non-conductor support element; a second non-conductor support element, wherein the first non-conductor support element and the second non-conductor support element are adjacent to each other and have different heights; and An antenna structure formed on the first non-conductor support element and the second non-conductor support element, wherein the antenna structure includes: a feed-in connection portion coupled to a feed-in point; a first radiating portion coupled to the feeding connection portion; and a second radiating part coupled to the feeding connecting part, wherein the feeding connecting part is between the first radiating part and the second radiating 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 an outer edge portion of the mobile device. 3 . 3. The mobile device of claim 1, wherein the second non-conductive support element is an antenna placement platform or a display placement platform. 4. The mobile device of claim 1, wherein the height of the first non-conductive support element is greater than the height of the second non-conductive support element. 5. The mobile device of claim 1, wherein the antenna structure further comprises: A short-circuit part, wherein the second radiation part is coupled to the feed-in connection part via the short-circuit part, so that the feed-in connection part, the second radiation part, and the short-circuit part together form a closed loop. 6 . The mobile device of claim 5 , wherein the feed-in connection portion, the second radiation portion, and the short-circuit portion are distributed only on the second non-conductor support element. 7 . 7 . The mobile device of claim 1 , wherein the first radiating portion is distributed on the first non-conductive supporting element and the second non-conducting supporting element simultaneously. 8 . 8. The mobile device of claim 5, wherein the antenna structure covers a low frequency band, a first high frequency band, and a second high frequency band, the low frequency band is between 2400MHz and 2500MHz, and the first A high frequency band is between 5150MHz and 5350MHz, and the second high frequency band is between 5350MHz and 5850MHz. 9 . The mobile device of claim 8 , wherein the total length of the feed-in connection portion and the first radiation portion is equal to 0.25 times the wavelength of the low frequency band. 10 . 10. The mobile device of claim 8, wherein the total length of the feed-in connection part and the second radiation part is equal to 0.25 times the wavelength of the second high frequency band. 11. The mobile device of claim 8, wherein a total length of the feed-in 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 is 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 shell, and the center conductor is coupled to the feed point. 14. The mobile device of claim 13, further comprising: a metal back cover adjacent to the first nonconductive support element, the second nonconductive support element, the antenna structure, and the display; and A metal foil, wherein the conductor shell 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 a concave area, and the detachable antenna element is hidden in the concave area, or is The concave area is extracted.

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