CN205657161U - A antenna device and electronic equipment for electronic equipment - Google Patents

Abstract

The utility model discloses an antenna device for electronic equipment, which comprises: a slot antenna, which is formed by forming a through slot hole in the housing of the electronic equipment; a printed circuit board, which has a The first surface and the second surface of the side, the first surface is provided with an antenna circuit for the slot antenna, the antenna circuit is electrically connected to the main circuit of the electronic device through a conductive cable, and the second surface of the printed circuit board is bonded to On the surface of the casing of the electronic device and covering part of the slot hole of the slot antenna, the second surface of the printed circuit board is composed of a conductive first area and a non-conductive second area. The utility model also discloses an electronic device comprising the antenna device.

Description

Antenna device for electronic equipment and electronic equipment

technical field

The utility model relates to an antenna device for electronic equipment and the electronic equipment. More specifically, the present invention relates to an antenna device that can be used in various sizes and/or models of electronic equipment.

Background technique

Electronic devices, especially portable electronic devices, such as notebook computers, cellular phones, etc., often include antennas to communicate with the outside world. In order to ensure portability, built-in antennas are gradually becoming a trend.

As a built-in antenna, the slot antenna has been widely used in electronic equipment. The back side of the circuit board (PCB) of the traditional slot antenna is only provided with non-conductive glue, and the non-conductive glue is bonded to the casing of the electronic device. Generally, different sizes and/or models of electronic devices have different sizes of slots for forming slot antennas. For example, the slots of 13-inch and 15-inch laptops have different lengths and widths. Similarly, since the length and width of the slot directly affect the performance of the formed slot antenna, in order to achieve the same antenna performance, it is necessary to design different slot antennas for different sizes and/or types of electronic equipment, which greatly reduces the antenna device adaptability, and increases product cost. Moreover, once the designed slot antenna is applied to a corresponding electronic device, the performance of the antenna cannot be adjusted without changing the shape of the electronic device, which reduces the adaptability of the electronic device.

Therefore, there is a need for an improved antenna arrangement for such electronic devices.

Utility model content

In order to solve at least one aspect of the above problems, the utility model proposes an antenna device for electronic equipment, which can be applied to electronic equipment of different sizes and/or models, and without changing the shape of the electronic equipment The antenna performance can be adjusted freely. In addition, the utility model also proposes an electronic device including the antenna device, and the electronic device may be a portable device with a communication function such as a notebook computer, a cellular phone, and a tablet computer.

According to one aspect of the present invention, there is provided an antenna device for an electronic device, comprising: a slot antenna formed by forming a through slot in the housing of the electronic device; a printed circuit board, the printed circuit board The board has a first surface and a second surface on opposite sides, the first surface is provided with an antenna circuit for a slot antenna, the antenna circuit is electrically connected to the main circuit of the electronic device through a conductive cable, and the first surface of the printed circuit board is The second surface is bonded to the surface of the housing of the electronic device and covers a part of the slot hole of the slot antenna, and the second surface of the printed circuit board is composed of a conductive first area and a non-conductive second area.

Wherein, the length and/or width of the slot antenna can be adjusted by adjusting the area of the conductive first region, that is, the length and/or width of the slot antenna is determined by the original length and/or width of the slot Determined together with the area of the conductive first region, after the original length of the slot is determined, the area of the conductive first region can be adjusted accordingly to obtain a desired length and/or width of the slot antenna.

Further, the area of the conductive first region is adjusted so that the length of the slot except covered by the first conductive region is equal to one quarter of the operating frequency of the antenna device of the electronic device wavelength.

Wherein, the area of the first conductive region varies according to the size of the electronic device.

Wherein, the area of the conductive first region varies according to the original length of the slot.

Preferably, the area of the conductive first region is adjusted such that the length of the slot except covered by the conductive first region is equal to 31.25mm or 15mm.

Wherein, the conductive first area is provided with conductive glue, copper foil or conductive foam.

According to another aspect of the present invention, there is also provided an electronic device, which includes the above-mentioned antenna device.

Wherein, the electronic device may be a notebook computer of different sizes and/or models.

Wherein, the electronic device may be a cell phone or a tablet computer of different sizes and/or models.

The antenna device according to one aspect or embodiment above can be applied to electronic devices of different sizes and/or models, and can freely adjust the performance of the antenna without changing the shape of the electronic device.

Through the following description of the utility model with reference to the accompanying drawings, other purposes and advantages of the utility model will be apparent, and can help to have a comprehensive understanding of the utility model.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of an electronic device according to an embodiment of the present invention;

2 is a front view of an upper case of an electronic device according to an embodiment of the present invention showing a part of a circuit board covering a slot;

3 is a schematic diagram showing a second surface of a circuit board including a conductive first region and a non-conductive second region according to an embodiment of the present invention;

4 is a schematic diagram showing the positional relationship between the first surface and the second surface of the circuit board and the slot hole according to an embodiment of the present invention;

FIG. 5 is a schematic diagram showing connection cables of the antenna device according to an embodiment of the present invention.

detailed description

The technical solutions of the present utility model will be further specifically described below through the embodiments and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals designate the same or similar components. The following descriptions of the embodiments of the utility model with reference to the accompanying drawings are intended to explain the overall utility model concept of the utility model, and should not be construed as a limitation of the utility model.

In addition, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a comprehensive understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in diagrammatic form to simplify the drawings.

According to one aspect of the general technical concept of the present invention, there is provided an antenna device for an electronic device, comprising: a slot antenna formed by forming a through slot hole in a housing of the electronic device; a printed circuit board , the printed circuit board has a first surface and a second surface on opposite sides, the first surface is provided with an antenna circuit for a slot antenna, the antenna circuit is electrically connected to the main circuit of the electronic device through a conductive cable, the printed A second surface of the circuit board is bonded to a surface of the housing of the electronic device and covers a portion of the slot of the slot antenna, wherein the second surface of the printed circuit board is composed of a conductive first region and a non-conductive first region. Composed of two regions.

According to another aspect of the general technical concept of the present utility model, an electronic device including the antenna device is also provided.

Fig. 1 is a schematic perspective view of an electronic device according to an embodiment of the present invention, the electronic device includes an upper case 100, and the upper case 100 is generally made of metal materials. As shown in FIG. 1 , a slot 10 penetrating through the thickness of the upper case is provided at a position near the outer side (toward the user side) of the upper case 100 , and the slot is used to form a slot antenna. It should be understood that the slot 10 can also be formed in other parts of the laptop computer casing, as long as it is convenient for it to realize the antenna function.

FIG. 2 further shows a schematic view of the upper housing 100 including a printed circuit board (PCB) 12 . As shown in FIG. 2 , the printed circuit board 12 is joined to the upper case 100 and covers a part of the slot 10 . The printed circuit board 12 includes a first surface 14 and a second surface 16 on opposite sides. The first surface 14 is visible in FIG. required for the antenna circuit. The printed circuit board 12 is bonded (eg, glued) to the upper housing 100 via the second surface 16 , which will be further described below. In this way, communication can be carried out through the slot antenna formed by the slot 10, the signal transmitted by the slot antenna can pass through the antenna circuit on the printed circuit board 12 and be transmitted to the main circuit of the electronic device via an energized cable (described below). It will be appreciated that the dimensions of the slot 10, such as length and width, will greatly affect the performance of the slot antenna.

FIG. 3 shows a schematic view of the bottom side of the printed circuit board 12 showing the second surface 16 in detail. The second surface 16 is composed of a conductive first region 18 and a non-conductive second region 20. In the embodiment shown in FIG. Conductive plastic. In this way, the printed circuit board 12 is bonded on the upper case 100 through the conductive glue and the non-conductive glue. In other embodiments, the conductive first region 18 may also include other conductive substances, such as copper foil, conductive foam, and the like.

In order to further illustrate the positional relationship between the printed circuit board 12 and the upper case 100 with the slot 10, Fig. 4 shows an exploded view of the printed circuit board 12 and the upper case 100 with the slot 10, and First surface 14 and second surface 16 of printed circuit board 12 are shown. As shown, when the printed circuit board 12 covers a part of the slot 10, the conductive first region 18 on its second surface 16 will also cover a part of the slot 10, so that, according to the Faraday cage effect, for the gap The size of the slot of the antenna is changed, for example, the length is shortened, thereby changing the antenna performance of the slot antenna. That is to say, by changing the area of the conductive first region 18 on the second surface 16, the size of the slot hole of the slot antenna, such as changing its length and/or width, can be changed, thereby changing the performance of the antenna.

In a preferred embodiment, the area of the conductive first region 18 is adjusted so that the length of the slot 10 except that it is covered by the conductive first region 18 is equal to 1/4 of the operating frequency of the antenna device of the electronic device wavelength. And the area of the conductive first region 18 may vary according to the size of the electronic device, and/or vary according to the length of the slot 10 . For example, for a 15-inch notebook computer, the initial length of the slot 10 offered on the upper casing 100 is 50 mm, and the common operating frequency of the antenna device of the notebook computer is 2.4 GHz, so the quarter wavelength under this operating frequency is equal to 31.25mm, at this time, the area of the conductive first region 18 can be adjusted so that the conductive first region 18 covers the length of 18.75mm on the left side of the slot 10 shown in FIG. The length beyond that covered by the conductive first area 18 is equal to 31.25 mm, so as to reach the resonance point. For a 13-inch notebook computer, the initial length of the slot 10 provided on the upper casing 100 is 40mm. At this time, only the area of the conductive first region 18 needs to be adjusted so that the conductive first region 18 covers the slot 10. A length of 8.75 mm on the left side shown in FIG. 4 , so that the length of the slot 10 except covered by the conductive first region 18 is still equal to 31.25 mm, so that the resonance point is reached. If the common operating frequency of the antenna device of the notebook computer is 5GHz, and a quarter wavelength under this operating frequency is equal to 15mm, then, for 15-inch and 13-inch notebook computers, the areas of the conductive first regions 18 can be adjusted respectively, Such that the conductive first region 18 covers a length of 35mm, 25mm on the left side of the slot 10 shown in FIG. reach the point of resonance. By adjusting the area of the conductive first region 18, the size of the slot 10 can be adjusted, and the IF test shows that the performance of the adjusted slot antenna is good.

Therefore, the antenna device according to the embodiments can be applied to electronic devices of different sizes and/or signals, thereby greatly improving its applicability while reducing product design and production costs. Furthermore, the antenna device can freely and flexibly adjust the performance of the antenna by adjusting the area of the first conductive region without changing the shape of the electronic device, which further improves the applicability of the antenna device.

Fig. 5 further shows the connection relation of the antenna device, as shown in Fig. 5, the antenna device 1 is electrically connected to the main circuit (not shown) of the electronic equipment through the conductive cable 22, thereby the signal transmitted by the antenna device 1 is transmitted to The main circuit of electronic equipment.

According to another aspect of the general technical concept of the present invention, there is also provided an electronic device including the antenna device according to any one of the above-mentioned embodiments. The electronic device may be a notebook computer of different sizes and/or models, such as a 13-inch, 15-inch or 17-inch notebook computer. The electronic device can also be a different size and/or model of cell phone or tablet computer.

Although the utility model has been described in conjunction with the drawings, the embodiments disclosed in the drawings are intended to illustrate the implementation of the utility model, and should not be construed as a limitation to the utility model. In order to clearly show the details of the various components, the various components in the drawings are not drawn to scale, so the scale of the various components in the drawings should not be regarded as a limitation.

Although some embodiments of the present general inventive concept have been shown and described, those skilled in the art will appreciate that changes can be made to these embodiments without departing from the principles and spirit of the present general inventive concept. The scope of the utility model is defined by the claims and their equivalents.

Claims (10)

1. An antenna device for electronic equipment, comprising: a slot antenna formed by forming a slot therethrough in a housing of the electronic device; a printed circuit board having a first surface and a second surface on opposite sides, the first surface being provided with an antenna circuit for a slot antenna electrically connected to a main circuit of an electronic device through a conductive cable, the second surface of the printed circuit board is bonded to the surface of the housing of the electronic device and covers a part of the slot hole of the slot antenna, It is characterized in that the second surface of the printed circuit board is composed of a conductive first area and a non-conductive second area. 2. The antenna device according to claim 1, wherein the length and/or width of the slot antenna can be adjusted by adjusting the area of the conductive first region. 3. The antenna device according to claim 2, wherein the area of the conductive first region is adjusted so that the length of the slot except covered by the conductive first region is equal to A quarter wavelength at the frequency at which the antenna assembly of an electronic device operates. 4. The antenna device according to claim 2, wherein the area of the conductive first region varies according to the size of the electronic device. 5. The antenna device according to claim 2, wherein the area of the conductive first region varies according to the original length of the slot. 6. The antenna device according to claim 2, wherein the area of the conductive first region is adjusted so that the length of the slot except covered by the conductive first region is equal to 31.25mm or 15mm. 7. The antenna device according to any one of claims 1-6, wherein conductive glue, copper foil or conductive foam is disposed on the conductive first area. 8. An electronic device, comprising the antenna device according to any one of the preceding claims. 9. The electronic device according to claim 8, wherein the electronic device is a notebook computer of different sizes and/or models. 10. The electronic device according to claim 8, wherein the electronic device is a cell phone or a tablet computer of different sizes and/or models.