CN101483269B - Antenna applied to wireless wide area network - Google Patents

Abstract

The invention relates to an antenna applied to a wireless wide area network. The antenna comprises a first radiating metal sheet, a second radiating metal sheet, a first grounding sheet, a connecting metal sheet and a second grounding sheet. The first radiating metal sheet includes a first portion and a second portion. The second radiating metal sheet is a separate metal sheet, the first portion is coupled to the second radiating metal sheet to generate a first resonance, and the second portion is coupled to the second radiating metal sheet to generate a second resonance. The connection metal sheet connects the first radiation metal sheet with the first ground sheet. The second grounding plate is a separate metal plate. In the present invention, the grounding plate may be selectively connected or not connected to a ground terminal of the wireless electronic device, and serves to provide a grounding function. Therefore, the antenna can be installed anywhere in the wireless electronic device, and also has stable electrical characteristics.

Description

Antennas for Wireless Wide Area Networks

technical field

The invention relates to an antenna applied to a wireless network, specifically to an antenna applied to a wireless wide area network.

Background technique

With the vigorous development of wireless communication technology, various multi-frequency communication products have sprung up, and therefore wireless communication products have gradually become a part of human life. Almost all new products will have the function of wireless transmission to meet The needs of the public, and notebook computers often need data transmission, wireless transmission can simplify many of its wiring and setting troubles, and in order to achieve the purpose of wireless transmission, the configuration of the antenna becomes necessary. For a notebook computer with wireless transmission function to be widely accepted and affirmed by the market, the appearance, size and performance of the product are very important, so it needs a good antenna design and proper configuration s position.

Conventional antenna configurations for notebook computers, such as the antenna configuration disclosed in US Pat. No. 6,339,400B1, place one or more antennas 11 , 12 around the screen 10 of the notebook computer 1 , as shown in FIG. 1 . However, since the ground terminals of these antennas 11 and 12 must be connected to the ground of the screen or its frame, the installation position of the conventional antenna configuration design is limited and cannot be adjusted flexibly. In addition, these antennas 11, 12 are only suitable for wireless local area networks.

Therefore, it is necessary to provide an innovative and progressive antenna for wireless wide area network to solve the above problems.

Contents of the invention

The invention provides an antenna applied to a wireless wide area network, which includes a first radiating metal sheet, a second radiating metal sheet, a first grounding sheet, a connecting metal sheet, a second grounding sheet and at least one supporting element. The first radiating metal sheet includes a first part and a second part. The second radiating metal sheet is an independent metal sheet, the first part is coupled with the second radiating metal sheet to generate a first resonance, and the second part cooperates with the second radiating metal sheet for to produce a second resonance. The connection metal sheet is used to connect the first radiation metal sheet to the first ground sheet. The second ground sheet is an independent metal sheet, and the second ground sheet is not connected to the first ground sheet and the second radiating metal sheet. The supporting element is used to support the first radiating metal sheet, the second radiating metal sheet and the second grounding sheet.

The antenna of the present invention is small in size and can be installed in a wireless electronic device, and the grounding sheet of the antenna can provide grounding function independently, and it is optional to connect with the ground terminal of the wireless electronic device, so the antenna of the present invention The installation can have better flexibility, and can also maintain stable electrical characteristics.

In the antenna of the present invention, the second ground piece is not connected to the first ground piece, so when it is grounded, the grounding path can be increased.

Description of drawings

FIG. 1 is a schematic diagram of conventional antennas arranged around the screen of a notebook computer;

2A is a schematic diagram of the antenna of the present invention being arranged on the frame of the notebook computer screen;

FIG. 2B is a partial enlarged schematic view of the antenna of the present invention disposed on the frame of the notebook computer screen casing;

Fig. 3 shows the three-dimensional schematic diagram of the first embodiment of the antenna applied to the wireless wide area network of the present invention;

Fig. 4 shows the rear view diagram of the first embodiment of the antenna applied to the wireless wide area network of the present invention;

Fig. 5 shows the schematic bottom view of the first embodiment of the antenna applied to the wireless wide area network of the present invention; and

FIG. 6 shows a perspective view of a second embodiment of the present invention applied to an antenna for a wireless wide area network.

Detailed ways

Please refer to FIGS. 2A and 2B , which are schematic diagrams showing the configuration of the antenna of the present invention applied to a notebook computer 2 . The antenna of the present invention can be applied to various wireless electronic devices including notebook computers, but is not limited to notebook computers, general electronic products such as personal digital assistants (PDAs) can use the antenna of the present invention to achieve the purpose of wireless communication . The notebook computer 2 has a screen 21 and a screen casing frame 22, and the antenna 3 of the present invention (taking the antenna 3 of the first embodiment as an example, as shown in FIG. 3 ) is arranged on the screen casing frame 22 of the notebook computer 2, And the antenna 3 is connected to the control circuit of the notebook computer 2 with a coaxial wire 23 so as to use the antenna 3 for data transmission.

The antenna 3 has at least one fixing portion for fixing the antenna 3 to the screen housing frame 22 . In this embodiment, the fixing portion is two through holes (including the first through hole 332 and the second through hole 352 ) (as shown in FIG. 3 ), for two screws 24 to fix the antenna 3 to the The screen casing frame 22 of the notebook computer 2 (as shown in FIG. 2B ).

Please refer to FIG. 3 , FIG. 4 and FIG. 5 , which show schematic diagrams of a first embodiment of the present invention applied to an antenna for a wireless wide area network. The antenna 3 includes a first radiating metal sheet 31 , a second radiating metal sheet 32 , a first grounding sheet 33 , a connecting metal sheet 34 , a second grounding sheet 35 and at least one supporting element 36 .

The first radiating metal sheet 31 includes a first portion 311 and a second portion 312 . The first portion 311 and the second portion 312 extend along different relative directions, so that the first radiating metal sheet 31 and the connecting metal sheet 34 are T-shaped. The first portion 311 includes an extension portion 3111 , and the length of the first portion 311 and its extension portion 3111 is greater than the length of the second portion 312 . The first part 311 , the extension part 3111 and the second part 312 are located on the top surface of the antenna 3 . The second part 312 further includes a gain extension 3121 extending to the second side (back) of the antenna 3 to increase the bandwidth. The second side is perpendicular to the top surface. Preferably, the first part 311 further includes a protruding part 3112 , and the extension part 3111 extends to the second side of the antenna 3 to increase the path of the first part 311 .

The second radiating metal sheet 32 is an independent metal sheet, that is, the second radiating metal sheet 32 is not connected to the first radiating metal sheet 31 and the second grounding sheet 35 . The first portion 311 is coupled to the second radiating metal sheet 32 for generating a first resonance. The second portion 312 cooperates with the second radiating metal piece 32 to generate a second resonance. In this embodiment, the second radiating metal sheet 32 includes a third part 321 and a fourth part 322, the third part 321 is located on the top surface of the antenna 3, and the fourth part 322 is located on the top surface of the antenna 3. 3, the top surface is perpendicular to the first side, therefore, the third part 321 is perpendicular to the fourth part 322.

The third portion 321 is parallel to the extension portion 3111 of the first portion 311 and separated by a distance D. The distance D is between 0.2mm and 2mm. The third part 321 is coupled to the extension part 3111 of the first part 311 for generating a first resonance. The second portion 312 cooperates with the second radiating metal piece 32 to generate a second resonance. The frequency of the first resonance is between 824MHz and 960MHz, and the frequency of the second resonance is between 1575MHz, or between 1710MHz and 2170MHz.

In this embodiment, the second radiating metal sheet 32 further includes a connecting portion 323 for connecting the third portion 321 and the fourth portion 322 . However, it can be understood that the third part 321 can also be directly connected with the fourth part 322 . In this embodiment, the connecting part 323 includes a first connecting part 3231 and a second connecting part 3232, the first connecting part 3231 connects the fourth part 322 and the second connecting part 3232, and the first connecting part 3231 connects the fourth part 322 and the second connecting part 3232. The second connecting portion 3232 connects the first connecting portion 3231 and the third portion 321 . The first connecting portion 3231 is located on the top surface of the antenna 3 , and the second connecting portion 3232 is located on the first side of the antenna 3 . Preferably, the first connecting portion 3231 and the second connecting portion 3232 are U-shaped, so as to increase the path of the second radiating metal sheet 32 .

The first ground piece 33 is located on the bottom surface of the antenna 3 , the bottom surface is opposite to the top surface. Preferably, the first ground piece 33 further includes a first fixing piece 331 , and the first fixing piece 331 extends upward and has a first through hole 332 .

The connecting metal sheet 34 is used to connect the first radiating metal sheet 31 to the first grounding sheet 33 , and the connecting metal sheet 34 is located on the first side of the antenna 3 . In this embodiment, the connecting metal piece 34 is L-shaped.

The second ground sheet 35 is an independent metal sheet, that is, the second ground sheet 35 is not connected to the first ground sheet 33 and the second radiating metal sheet 32, so as to increase the grounding path. The second ground piece 35 is located on the bottom surface of the antenna 3 . Preferably, the second ground piece 35 further includes a second fixing piece 351 , and the second fixing piece 351 extends upward and has a second through hole 352 .

The supporting element 36 is an insulating element, which is used to support the first radiating metal sheet 31 , the second radiating metal sheet 32 and the second grounding sheet 35 . In this embodiment, the supporting element 36 is a cuboid structure, and the first part 311 and the extension part 3111 of the first radiating metal sheet 31, the third part 321 of the second radiating metal sheet 32 and the second connection The portion 3232 and the second ground sheet 35 are adhered to the supporting element 36 .

Preferably, the antenna 3 further includes a first auxiliary ground element 37 and a second auxiliary ground element 38, the first auxiliary ground element 37 is electrically connected to the first ground sheet 33, and the second auxiliary ground element 38 It is electrically connected to the second ground plate 35 . The first auxiliary grounding element 37 and the second auxiliary grounding element 38 are made of aluminum foil, conductive glue or conductive foam. There is a space between these auxiliary ground elements 37, 38. The above-mentioned auxiliary grounding elements 37 and 38 have the characteristics of being foldable and stackable, which can save space to meet the structural requirements of the customer's product and provide better grounding effect and radiation effect.

Please refer to FIG. 4 again, the lower end of the fourth part 322 has a feed-in point F, and the position of the second ground sheet 35 relative to the feed-in point F has a ground terminal G, and the feed-in point F and the feed-in point F are The ground terminal G is electrically connected to the coaxial wire 23 (FIG. 2B). The coaxial wire 23 connects the antenna 3 to the control circuit of the notebook computer 2 , receives a wireless signal via the feeding point F, and transmits the wireless signal to the control circuit of the notebook computer 2 .

The antenna of the present invention can be applied to a wireless wide area network, and has a small volume and can be arranged in a wireless electronic device. Furthermore, the grounding piece and the auxiliary grounding element of the antenna can provide grounding function independently, and can choose whether to connect with the grounding terminal of the wireless electronic device, so the installation of the antenna of the present invention can have better flexibility, and It also maintains stable electrical characteristics.

Please refer to FIG. 6 , which shows a perspective view of a second embodiment of the antenna applied to the wireless wide area network of the present invention. The antenna 4 is substantially the same as the antenna 3 ( FIG. 3 ) of the first embodiment, and the only difference lies in the relative positions of the extension part 3111 and the third part 321 . In the antenna 3 of the first embodiment, the third portion 321 is located in front of the extension portion 3111 . However, in the antenna 4 of this embodiment, the third portion 321 is located behind the extension portion 3111 , while the protruding portion 3112 is located on the first side (front side) of the antenna 3 .

However, the above-mentioned embodiments are only for illustrating the principles and effects of the present invention, rather than limiting the present invention. Therefore, those skilled in the art can make modifications and changes to the above-described embodiments without departing from the spirit of the present invention. The scope of rights of the present invention should be listed in the appended claims.

Claims (17)

1. antenna that is applied to wireless wide area network, it comprises:

The first radiation sheet metal, it comprises first and second portion, described first comprises extension;

The second radiation sheet metal, it is sheet metal independently, described first and the coupling of described the second radiation sheet metal, in order to produce the first resonance, described second portion cooperates with described the second radiation sheet metal, in order to produce the second resonance, wherein said the second radiation sheet metal comprises third part, the 4th part and connecting portion, described third part is vertical with described the 4th part, the extension of described first and interval one distance parallel with described third part, described connecting portion is in order to connect described third part and described the 4th part, wherein said connecting portion comprises the first connecting portion and the second connecting portion, described the first connecting portion connects described the 4th part and described the second connecting portion, and described the second connecting portion connects described the first connecting portion and described third part;

The first ground strip;

The connection metal sheet, it is in order to be connected to described the first ground strip with described the first radiation sheet metal;

The second ground strip, it is sheet metal independently, described the second ground strip does not connect described the first ground strip and described the second radiation sheet metal; And

At least one support component, it is in order to support described the first radiation sheet metal, described the second radiation sheet metal and described the second ground strip.

2. antenna according to claim 1, the frequency of wherein said the first resonance be 824MHz between the 960MHz, the frequency of described the second resonance is 1575MHz, or 1710MHz is between the 2170MHz.

3. antenna according to claim 1, wherein said support component is insulation component.

4. antenna according to claim 1, wherein said first extends along different relative directions with described second portion, so that described the first radiation sheet metal and described connection metal sheet are T-shaped.

5. antenna according to claim 1, the extension of wherein said second portion, described first and described third part are positioned at the end face of described antenna, described the 4th part is positioned at the first side of described antenna, and described end face is perpendicular to described the first side.

6. antenna according to claim 1, wherein said distance between 0.2mm between the 2mm.

7. antenna according to claim 1, the extension of wherein said second portion, described first, described third part and described the first connecting portion are in the end face of described antenna, described the 4th part and described the second connecting portion are in the first side of described antenna, and described end face is perpendicular to described the first side.

8. antenna according to claim 1, wherein said the first connecting portion and described the second connecting portion are U-shaped.

9. antenna according to claim 1, wherein said first, described second portion are positioned at the end face of described antenna, and described the first ground strip and described the second ground strip are positioned at the bottom surface of described antenna, and described end face is relative with described bottom surface.

10. antenna according to claim 9, wherein said connection metal sheet is positioned at the first side of described antenna, and described end face is perpendicular to described the first side.

11. antenna according to claim 9, the extension of wherein said first, described third part and described the first connecting portion are in the described end face of described antenna, described the 4th part and described the second connecting portion are in the first side of described antenna.

12. antenna according to claim 11, wherein said the 4th part has load point, and described the second ground strip has ground termination points with respect to described load point position, and described load point and described ground termination points are electrically connected to concentric conductor.

13. antenna according to claim 9, wherein said second portion further comprises the gain extension, and it extends to the second side of described antenna, and described the second lateral vertical is in described end face.

14. antenna according to claim 1, the length of wherein said first and extension thereof is greater than the length of described second portion.

15. antenna according to claim 1, wherein said the first radiation sheet metal, described the second radiation sheet metal and described the second ground strip adhere on the described support component.

16. antenna according to claim 1, it further comprises the first auxiliary earth element and the second auxiliary earth element, described the first auxiliary earth element is electrically connected to described the first ground strip, and described the second auxiliary earth element is electrically connected to described the second ground strip.

17. antenna according to claim 16, the material of wherein said the first auxiliary earth element and described the second auxiliary earth element is aluminium foil, conducting resinl or conducting foam.

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