CN201303047Y - Antenna module of portable information product - Google Patents

Abstract

An antenna module for a portable information product is provided in a display of the portable information product. The antenna module is located between the housing of the display and the display panel. The antenna module includes: a chip antenna having a radiation component; a circuit board having an amplifier circuit group. The chip antenna is fixed on the circuit board. The radiation component of the chip antenna is electrically connected to the amplifier circuit group; and a coaxial cable is electrically connected to the amplifier circuit group of the circuit board. In this way, the antenna module is far away from the system area of the portable information product. When the antenna module sends and receives wireless signals, it is not easily interfered by the system area. Therefore, the antenna module can have a better antenna efficiency.

Description

Antenna module for portable information products

technical field

The utility model relates to an antenna module of a portable information product, in particular to an antenna module of a portable information product applied to the portable information product.

Background technique

With the rapid development of the wireless communication industry, most electronic information products (such as personal digital assistants, notebook computers, etc.) currently have the function of transmitting signals through wireless communication. The main equipment for transmitting and receiving signals in wireless communication is an antenna (antenna) installed on information products. In order to reduce the production cost of the antenna itself and meet the design requirements of light, thin, short, and small information products, most of the information products that can communicate wirelessly currently use a smaller chip antenna (chip antenna) or a A long strip ceramic antenna (ceramic patchantenna) is used to replace a larger traditional antenna (such as a rod antenna), so that the antenna can be integrated into the information product without increasing the size of the information product.

Chip antennas have various forms, such as the "Ceramic chip antenna" proposed by U.S. Patent No. US7,136,021 or the patent "Linearly Polarized Planar Antenna Structure" proposed by the applicant (Chinese Taiwan Patent Certificate No. M326235). The appearance of the chip antenna is roughly a rectangular plate made of ceramic material. The chip antennas have a radiating element, and the chip antenna transmits or receives wireless signals through the radiating element. In addition, the antennas may be circularly polarized antennas.

Generally, chip antennas are mostly installed on the system area of information products. Taking a notebook computer as an example, the system area refers to the main board (circuit board) of the notebook computer, which has a large number of electronic components or hardware. The chip antenna is arranged on a certain area on the motherboard, and is electrically connected with other electronic components on the motherboard.

However, when the above-mentioned chip antenna transmits and receives wireless signals, if there are electronic components near the antenna, these electronic components are likely to interfere with the wireless signal, resulting in problems such as poor antenna efficiency (radiation efficiency) of the chip antenna. In order to avoid such problems, the chip antenna needs to be placed in an area far from the electronic components, or try not to arrange any electronic components around the chip antenna.

However, the improvement effects of these two methods are limited, especially the volume of current and future information products will be smaller and smaller, and the area of the motherboard will be smaller and smaller, and the electronic components of the chip antenna and the motherboard can be separated. The distance is also shorter. Therefore, if the chip antenna is still disposed on the motherboard, the antenna efficiency of the chip antenna must be difficult to improve.

The reason is that the author feels that the above defects can be improved, so he proposes a utility model with a reasonable design and can effectively improve the above defects.

Utility model content

The main purpose of this utility model is to provide an antenna module for portable information products. It is less susceptible to interference from the system area when sending and receiving wireless signals.

In order to achieve the above purpose, the utility model proposes an antenna module of a portable information product, which is arranged in a display of a portable information product, and the antenna module is located between a housing of the display and a display panel , the antenna module includes: a chip antenna, which has a radiation component; a circuit board, which has an amplifying circuit group, the chip antenna is fixed on the circuit board, and the radiation component of the chip antenna is electrically connected to the an amplifying circuit group; and a coaxial cable electrically connected to the amplifying circuit group of the circuit board.

The utility model has the following beneficial effects:

1. The antenna module of the portable information product is arranged in the space between the display panel and the housing, far away from the system area of the portable information product. Therefore, the antenna module is less likely to be interfered by the system area when transmitting and receiving wireless signals, so the antenna module can have better antenna efficiency.

2. The antenna module of this portable information product is small in size, so it can be placed in most positions between the display panel and the casing, so there are few restrictions on the placement of the antenna module, and it can easily respond to The appearance of the portable information product is changed accordingly.

3. The amplifying circuit group of the antenna module of the portable information product first amplifies the received wireless signal, and then transmits it to the system area of the portable information product, so that the wireless signal transmitted to the system area will not be too large Signal loss.

In order to further understand the features and technical contents of the present utility model, please refer to the following detailed description and drawings of the present utility model, but the accompanying drawings are only for reference and illustration, and are not intended to limit the present utility model.

Description of drawings

Fig. 1 is a perspective view of the antenna module of the portable information product of the present invention.

Fig. 2 is a three-dimensional enlarged detailed view of the antenna module of the portable information product of the present invention.

3 is a three-dimensional enlarged detailed view of the second embodiment of the antenna module of the portable information product of the present invention.

FIG. 4 is a perspective view of a third embodiment of the antenna module of the portable information product of the present invention.

FIG. 5 is a perspective view of a fourth embodiment of the antenna module of the portable information product of the present invention.

Fig. 6 is a data diagram of the performance experiment of the antenna module of the portable information product of the present invention.

Explanation of main component symbols

10 antenna modules

11 Chip Antenna

111 Radiating components

12 circuit board

121 amplifier circuit group

122 Ground electrode area

13 coaxial cable

131 inner conductive wire

132 outer conductive wire

14 Conductive tape

20 Portable Information Products

21 monitors

211 shell

212 display panel

213 storage space

22 system area

221 signal connection port

Detailed ways

Please refer to FIG. 1 and FIG. 2 which show a first embodiment of the antenna module 10 (hereinafter referred to as the antenna module 10 ) of the portable information product of the present invention, which is set in a portable information product 20 . The portable information product 20 can be a notebook computer (laptop), a personal digital assistant (PDA), a mobile phone (mobile phone) or a portable electric game device (portable game device) , and this embodiment is illustrated by taking the antenna module 10 disposed in the notebook computer 20 as an example, the antenna module 10 is used to receive the global positioning signal (global positioning signal), so that the notebook computer can have a navigation function Function.

Firstly, the basic structure of the notebook computer 20 will be introduced. The notebook computer 20 has a display 21 and a system area 22. The system area 22 is composed of electronic components (not shown) such as a motherboard, a central processing unit, and a hard disk. The display 21 is pivotally connected to one side of the system area 22. The display 21 has a casing (housing) 211 and a display panel (display panel) 212, the display panel 212 is located at the center of the casing 211, and there is a container between the casing 211 and the outer edge of the display panel 212. The antenna module 10 is disposed in the accommodating space 213 , and the preferred accommodating position is the accommodating space 213 at the upper end of the display panel 212 because this position is farthest from the system area 22 .

Next, detailed technical features of this antenna module 10 will be explained. The antenna module 10 has a chip antenna 11 , a circuit board 12 and a coaxial cable 13 . The chip antenna 11 is the main component of the antenna module 10 and has a radiation element 111 capable of receiving or transmitting wireless signals. The form of the chip antenna 11 is not limited, and most types of chip antennas 11 are applicable to the present invention, for example, the linearly polarized planar antenna structure of Taiwan Patent No. M326235 mentioned in the prior art.

The circuit board 12 is provided on the bottom surface of the chip antenna 11 , and usually the contact between the circuit board 12 and the chip antenna 11 is fixed together by soldering. This circuit board 12 has an amplifying circuit group (amplifier module) 121 and a grounding electrode area (grounding electrode) 122 in addition, and this amplifying circuit group 121 is arranged on the top surface of this circuit board 12, and with the radiating element 111 of chip antenna 11 Electrically connected, the amplifying circuit group 121 can amplify the wireless signal received by the chip antenna 11 . The ground electrode area 122 is disposed beside the amplifying circuit set 121 , but is not electrically connected with the amplifying circuit set 121 .

The coaxial cable 13 has an inner conductive wire 131 and an outer conductive wire 132 , the inner conductive wire 131 is electrically connected to the amplifying circuit group 121 , and the outer conductive wire 132 is electrically connected to the ground electrode area 122 . The other end of the coaxial cable 13 is connected to the system area 22 of the notebook computer 20, and the system area 22 has a signal connection port 221, and one end of the coaxial cable 13 is electrically connected to the signal connection port 221. connect. In this way, when the chip antenna 11 receives a wireless signal, the wireless signal is first transmitted to the amplifying circuit group 121 for amplification, and then transmitted to the system area 22 through the coaxial cable 13 .

The above are the technical features of the antenna module 10 of the present invention. Since the antenna module 10 is set in the accommodating space 213 of the display 21 , it is far away from the system area 22 of the portable information product 20 . Therefore, the antenna module 10 is less likely to be interfered by the system area 22 when transmitting and receiving wireless signals, so the antenna module 10 can have better antenna efficiency.

Please refer to Fig. 3, which is the second embodiment of the antenna module 10 of the present utility model, which is different from the antenna module 10 (Fig. 2) of the first embodiment in that: the antenna module 10 has a conductive strip 14 in addition .

The conductive strip 14 is a flexible metal sheet or a flexible cable. The two ends of the conductive strip 14 are respectively connected to the display panel 212 and the ground electrode area 122 of the circuit board 12, so that the display panel 212 and the ground electrode area 122 of the circuit board 12 are connected to each other. The ground electrode area 122 is electrically connected. Thereby, the grounding area of the antenna module 10 can be increased, so that the antenna efficiency thereof is better.

Please refer to FIG. 4 , which is a third embodiment of the antenna module 10 of the present invention. In the third embodiment, the accommodating space 213 above the display panel 212 is provided with two groups of antenna modules 10 arranged symmetrically from left to right. In this way, the range in which the notebook computer 20 receives wireless signals can be further increased.

Please refer to FIG. 5 , which is a fourth embodiment of the antenna module 10 of the present invention. In the fourth embodiment, the antenna module 10 is disposed in a mobile phone 20 and located above the display panel 212 . The antenna module 10 also has a coaxial cable 13 electrically connected to the system area 22 located below the display panel 212 .

Please refer to FIG. 6 , when the antenna module 10 of the present invention is used for the characteristic experiment of the antenna, the relationship between the measured antenna efficiency and the radiation frequency proves that the antenna module 10 of the present invention can indeed achieve the above-mentioned Effect. This experiment tests three kinds of antenna modules 10 in different usage situations: the first type (curve 1) is that the antenna module 10 of the present utility model has not been arranged in front of the notebook computer 20 (not shown in the figure), and the antenna module 10 has no surroundings. Any electronic component interference; the second type (curve two) is the first embodiment of the antenna module 10 of the present utility model (see Fig. 1); and the third type (curve three) is the first embodiment of the antenna module 10 of the present utility model Two embodiments (please refer to Fig. 3).

It can be seen from the experimental data that the antenna efficiency of the first antenna module 10 is about 30%, the antenna efficiency of the second antenna module 10 is about 25%, and the antenna efficiency of the third antenna module 10 is about 42.07%. .

The antenna efficiency of the antenna module 10 of the second type (the first embodiment) is only a little lower than that of the antenna module 10 of the first type, thus it can be proved that the antenna module 10 of the first embodiment can indeed achieve "reducing interference in the system area 22" Effect. The antenna efficiency of the third antenna module 10 (the second embodiment) is much higher than that of the first and second antenna modules 10, so it can be seen that the antenna module 10 of the second embodiment uses the display panel 212 as the grounding area , it can indeed improve the antenna efficiency.

Based on the above, the utility model can achieve the following effects:

1. The antenna module 10 is far away from the system area 22 of the portable information product 20 . Therefore, the antenna module 10 is less likely to be interfered by the system area 22 when transmitting and receiving wireless signals, so the antenna module 10 can have better antenna efficiency.

2. The amplifying circuit group 121 of the antenna module 10 can amplify the wireless signal and then transmit it to the system area 22 of the portable information product 20, ensuring that there will be no excessive signal loss when the wireless signal is transmitted to the system area 22.

3. The antenna module 10 can use the display panel 212 as a grounding area, greatly increasing the grounding area of the antenna module 10 , so that the efficiency of the antenna module 10 is further improved.

4. The volume of the antenna module 10 is small, so there are less restrictions on its placement. Therefore, the placement of the antenna module 10 can be easily changed according to the appearance of the portable information product 20 .

However, the above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the scope of patent protection of the present utility model. Therefore, all equivalent changes made by using the description and drawings of the utility model are all included in the same reason. Within the protection scope of the rights of the present utility model, Chen Ming is jointly granted.

Claims (8)

1. An antenna module of a portable information product, characterized in that it is set in a display of a portable information product, and the antenna module of the portable information product is located in a housing of the display and a display panel Between, the antenna module of this portable information product includes: a chip antenna having a radiating element; A circuit board, which has an amplifying circuit group, the chip antenna is fixed on the circuit board, and the radiation element of the chip antenna is electrically connected to the amplifying circuit group; and A coaxial cable is electrically connected to the amplifying circuit group of the circuit board. 2. The antenna module of a portable information product according to claim 1, wherein the circuit board has a ground electrode area, the coaxial cable has an inner conductive wire and an outer conductive wire, and the inner conductive wire It is electrically connected to the amplifying circuit group, and the outer conductive wire is electrically connected to the ground electrode area. 3. The antenna module for portable information products as claimed in claim 2, further comprising a conductive strip, the two ends of the conductive strip are respectively connected to the display panel of the display and the ground electrode area of the circuit board, The display panel is electrically connected to the ground electrode area. 4. The antenna module of a portable information product as claimed in claim 1, characterized in that: the portable information product has a system area, the system area has a signal connection port, and one end of the coaxial cable is electrically The signal connection port is connected electrically so that the antenna module is electrically connected with the system area. 5. The antenna module of a portable information product as claimed in claim 1, wherein the antenna module is located in the upper end of the housing of the display. 6. The antenna module of a portable information product as claimed in claim 1, wherein the portable information product is a notebook computer. 7. The antenna module of a portable information product as claimed in claim 1, wherein the antenna module is used for receiving global satellite positioning signals. 8. The antenna module of a portable information product as claimed in claim 1, wherein the chip antenna is a linearly polarized planar antenna structure.

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