Antenna device

Abstract

The present invention provides an antenna device, including a shell and a printed antenna. The shell includes a front glass shell, a rear glass shell and a metal frame, the metal frame is arranged between the front glass shell and the rear glass shell and connects the periphery of the front glass shell and the rear glass shell to form a receiving space together, and the metal frame has a first frame portion, a second frame portion and an opening, and the opening is defined between the first frame portion and the second frame portion. The printed antenna is arranged in the shell and is located between the first frame portion and the second frame portion, and the opening at least exposes a part of the printed antenna. The shell can reduce or even eliminate the coupling between the antennas or between the metals of the antenna and other components, thereby avoiding affecting the quality of wireless communication.

Description

Technical Field

[0001] The present invention relates to an antenna device, and in particular to an antenna device of a printed antenna. Background Art

[0002] Wireless communication technology is a way of exchanging information by using the property of electromagnetic wave signals that can propagate in free space. In recent years, it has experienced explosive growth due to widespread demand. After several generations of mobile communication technology evolution, the international standard for the fifth generation of mobile communication technology (5G) has recently been established. Compared with the fourth generation of mobile communication technology (4G), the fifth generation of mobile communication technology has a higher data transmission rate, and one of its concepts is to meet different communication needs such as near-field and long-distance.

[0003] In order to meet the standards of the fifth generation mobile communication technology, the design of multi-feed antennas is a necessary and low-cost option. However, as consumers have higher requirements for the appearance of electronic products, the screen-to-body ratio of electronic products is increasing, the placement of antennas is restricted, and the distance between antennas or between antennas and other components of electronic products is also reduced, which will aggravate the metal coupling between antennas or with other components, thereby affecting the quality of wireless communication. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide an antenna device for solving the problem in the prior art that metal coupling between antennas or with other components may lead to a decrease in the quality of wireless communication.

[0005] To achieve the above-mentioned purpose and other related purposes, the first aspect of the present invention provides an antenna device, including: a shell, including: a front glass shell; a rear glass shell; and a metal frame, which is arranged between the front glass shell and the rear glass shell, and connects the outer periphery of the front glass shell and the rear glass shell to jointly form a accommodating space, the metal frame has a first frame portion, a second frame portion and an opening, and the opening is defined between the first frame portion and the second frame portion; and a printed antenna, which is arranged in the shell and between the first frame portion and the second frame portion, and the opening at least exposes a portion of the printed antenna.

[0006] In an embodiment of the first aspect, the metal frame further includes a metal plate, the first frame portion and the second frame portion are connected to a periphery of the metal plate, and the metal plate and the first frame portion jointly support the printed antenna.

[0007] In an embodiment of the first aspect, the opening includes a first opening and a second opening that are connected to each other, the first opening is located between the first frame portion and the second frame portion, and the second opening is located between the first frame portion and the metal plate.

[0008] In an embodiment of the first aspect, the antenna device further includes a plastic cap, wherein the plastic cap is disposed between the front glass shell, the rear glass shell, and the metal frame, and the plastic cap is used to fill the opening.

[0009] In an embodiment of the first aspect, the opening is L-shaped.

[0010] In an embodiment of the first aspect, the printed antenna includes a circuit board and a first radiation component, a second radiation component and an isolation component printed on the circuit board, wherein the opening exposes the first radiation component and / or the second radiation component.

[0011] In an embodiment of the first aspect, the isolation component is disposed between the first radiation component and the second radiation component.

[0012] In an embodiment of the first aspect, the isolation component includes a first end, a second end, and a matching circuit disposed between the first end and the second end, the first end is a ground end, and the second end is electrically connected to the metal frame.

[0013] In an embodiment of the first aspect, the isolation component includes a matching circuit, and the matching circuit includes an inductor component and a capacitor component connected in series.

[0014] In an embodiment of the first aspect, the material of the front glass shell and the rear glass shell includes high aluminum glass.

[0015] As described above, the antenna device of the present invention includes a housing and a printed antenna disposed inside the housing, and the housing can reduce or even eliminate the coupling between the antennas or between the metals of the antenna and other components, thereby avoiding affecting the quality of wireless communication. In addition, the housing has a glass front shell, a glass rear shell, and a metal frame to protect the printed antenna, so the antenna device has excellent mechanical strength. In addition, an opening is specially designed on the frame of the metal frame to expose the printed antenna. The opening prevents the printed antenna from being interfered by the housing, so that the printed antenna can send and receive signals, so that the antenna device can stably apply to a specific operating frequency band.

[0016] The above description is only used to illustrate the problems to be solved by the present invention, the technical means to solve the problems, and the effects produced, etc. The specific details of the present invention will be described in detail in the following embodiments and related drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To achieve the above advantages and features, the principles briefly described above will be explained in more detail with reference to embodiments, which are shown in the accompanying drawings. These drawings are only illustrative of the present invention and therefore do not limit the scope of the invention. The principles of the present invention will be clearly explained through the accompanying drawings, and additional features and details will be fully described, in which:

[0018] Figure 1 Shown is a three-dimensional schematic diagram of an antenna device according to one or more embodiments of the present invention.

[0019] Figure 2 Display as Figure 1 A forward schematic diagram of the box range.

[0020] Figure 3 Display as Figure 1 Schematic diagram of the top view of the box range.

[0021] Figure 4 The antenna device of the present invention is shown along Figure 3 A cross-sectional view along section line 4-4.

[0022] Figure 5 The antenna device of the present invention is shown along Figure 4 A cross-sectional view along section line 5-5.

[0023] Figure 6 The antenna device of the present invention is shown along Figure 4 A cross-sectional view along section line 6-6.

[0024] Figure 7 Shown is a circuit diagram of a printed antenna according to one or more embodiments of the present invention.

[0025] Component number description

[0026] 100 Antenna Device

[0027] 110 Housing

[0028] 111 front glass shell

[0029] 113 rear glass shell

[0030] 115 Metal frame

[0031] 115a First frame portion

[0032] 115b Second frame portion

[0033] 115c Opening

[0034] 130 Printed Antenna

[0035] 131 Circuit Board

[0036] 133 first radiation member

[0037] 133a Feeding terminal

[0038] 133b Free end

[0039] 135 second radiation member

[0040] 135a Feeding terminal

[0041] 135b Free end

[0042] 137 Isolation Components

[0043] 137a First End

[0044] 137b Second end

[0045] 137c Matching Circuit

[0046] 150 Plastic cap

[0047] 170 Display Panel

[0048] A Transparent adhesive layer

[0049] C Capacitor component

[0050] D1 First opening

[0051] D2 Second opening

[0052] I Inductor Components

[0053] S Box DETAILED DESCRIPTION

[0054] The following will disclose multiple embodiments of the present invention with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these practical details are not necessary. In addition, for the purpose of simplifying the drawings, some conventional structures and components will be depicted in the drawings in a simple schematic manner.

[0055] Please refer to Figure 1 , Figure 1The figure shows a three-dimensional schematic diagram of the antenna device 100 in some embodiments of the present invention. Specifically, the antenna device 100 of the present invention refers to an electronic device having the function of transmitting and receiving electromagnetic waves. Therefore, the antenna device 100 can be a smart phone, a laptop computer, or a desktop computer. For example, the antenna device 100 includes a display panel 170 and has a display function at the same time, so the antenna device 100 can refer to a smart phone, a laptop computer, or a desktop computer, and the present invention is not limited thereto.

[0056] Please refer to Figures 1 to 4 , Figure 2 Display as Figure 1 Forward schematic diagram of box S. Figure 3 Display as Figure 1 Schematic diagram of the top view of the square frame S. Figure 4 The antenna device 100 is shown along Figure 3 Cross-sectional view along section line 4-4. In some embodiments of the present invention, the antenna device 100 includes a housing 110 and a printed antenna 130, wherein the printed antenna 130 may be a microstrip antenna. The housing 110 includes a front glass shell 111, a rear glass shell 113, and a metal frame 115. The metal frame 115 is disposed between the front glass shell 111 and the rear glass shell 113 and connects the periphery of the front glass shell 111 and the rear glass shell 113 to jointly form a accommodating space. The metal frame 115 has a first frame portion 115a, a second frame portion 115b, and an opening 115c. The opening 115c is defined between the first frame portion 115a and the second frame portion 115b. Figure 4 It can be seen that the printed antenna 130 is disposed in the housing 110 and between the first frame portion 115a and the second frame portion 115b, and the opening 115c at least exposes the printed antenna 130. It should be noted that the opening 115c at least exposes the printed antenna 130, which means that the printed antenna 130 is exposed relative to the housing 110, without considering any other components. In addition, the design of the opening 115c can reduce the negative interference of the housing 110 on the printed antenna 130, so that the antenna device 100 has excellent signal receiving and sending functions and is protected by the housing 110, so the antenna device 100 also has excellent mechanical strength.

[0057] In some embodiments of the present invention, the shell 110 uses a metal frame 115 to support the front glass shell 111 and the rear glass shell 113, and the materials of the front glass shell 111 and the rear glass shell 113 include high aluminum glass, so that the shell 110 has excellent light transmittance, mechanical strength and hardness, but the present invention is not limited to this.

[0058] In some embodiments of the present invention, the metal frame 115 further includes a metal plate 115d, and the first frame portion 115a and the second frame portion 115b of the metal frame 115 are connected to the periphery of the metal plate 115d, and the first frame portion 115a and the metal plate 115d jointly carry the printed antenna 130, but the second frame portion 115b is separated from the printed antenna 130, but the present invention is not limited thereto. In other embodiments, the second frame portion 115b and the metal plate 115d jointly carry the printed antenna 130, but the first frame portion 115a is separated from the printed antenna 130.

[0059] In one or more embodiments of the present invention, the opening 115c includes a first opening D1 and a second opening D2 that are connected, the first opening D1 is located between the first frame portion 115a and the second frame portion 115b, and the second opening D2 is located between the first frame portion 115a and the metal plate 115d, and the opening 115c is substantially L-shaped. Since the L-shaped opening 115c can expose the printed antenna 130 from the side, the opening 115c helps maintain the function of the printed antenna 130 to transmit and receive signals.

[0060] In one or more embodiments of the present invention, the antenna device 100 further includes a plastic cap 150, which is disposed between the front glass shell 111, the rear glass shell 113, and the metal frame 115, and the plastic cap 150 is located on the printed antenna 130 and is used to fill the opening 115c. Specifically, the plastic cap 150 is manufactured by an insert molding process, and the material of the plastic cap 150 includes ABS resin (acrylonitrile, butadiene, styrene polymer) and / or PC resin (polycarbonate polymer). In addition, the plastic cap 150 is directly connected between the front glass shell 111, the rear glass shell 113, and the metal frame 115, thereby improving the overall strength of the antenna device 100, but the present invention is not limited thereto.

[0061] Please also refer to Figure 5 , Figure 5 The antenna device 100 is shown along Figure 4 A cross-sectional view taken along the middle section line 5-5. In some embodiments, the printed antenna 130 is disposed in the housing 110, and the first frame portion 115a and the metal plate 115d are connected to the printed antenna 130. Specifically, the printed antenna 130 and the metal plate 115d of the metal frame 115 are both located between the front glass shell 111 and the rear glass shell 113. In addition, the first frame portion 115a has an L-shaped cross-section to be fixed between the front glass shell 111 and the rear glass shell 113 at the same time, and to carry the printed antenna 130.

[0062] Next, please also refer to Figure 6 , Figure 6 The antenna device 100 is shown along Figure 4 A cross-sectional view taken along section line 6-6. In some embodiments, the opening 115c of the housing 110 exposes the printed antenna 130 from above (considering only the housing 110 and the printed antenna 130), and the plastic cap 150 surrounds the printed antenna 130 and shields the printed antenna 130 from above. Since the plastic cap 150 does not affect the reception and transmission of signals by the printed antenna 130, the plastic cap 150 is suitable for shielding and protecting the printed antenna 130 from above.

[0063] Please also refer to Figure 5 and Figure 6 The antenna device 100 includes a display panel 170, and the display panel 170 is disposed between the front glass shell 111 and the metal plate 115d, wherein the display surface of the display panel 170 faces the front glass shell 111, and the display panel 170 is also located between the front glass shell 111 and the rear glass shell 113. In some embodiments of the present invention, the display panel 170 is fixed to the front glass shell 111 via a transparent adhesive layer A, but the present invention is not limited thereto.

[0064] Please refer to Figure 7 , Figure 7 The circuit diagram of the printed antenna 130 of the present invention is shown. In one or more embodiments of the present invention, the printed antenna 130 includes a circuit board 131 and a first radiation component 133, a second radiation component 135 and an isolation component 137 printed on the circuit board 131, wherein the opening 115c at least exposes the first radiation component 133 and / or the second radiation component 135, and the design of the opening 115c facilitates the first radiation component 133 and / or the second radiation component 135 to receive and transmit signals. The first radiation component 133 has a feeding end 133a and a free end 133b, wherein the feeding end 133a is used to receive a feeding signal, and the free end 133b is spaced apart from the metal frame 115, and a bent radiation portion is disposed between the feeding end 133a and the free end 133b. In addition, the second radiation component 135 has a feeding end 135a and a free end 135b, wherein the feeding end 135a is used to receive a feeding signal, and the free end 135b is spaced apart from the metal frame 115, and a bent radiation portion is provided between the feeding end 135a and the free end 135b. In practical applications, the arrangement direction and arrangement angle between the first radiation component 133 and the second radiation component 135 can be adjusted according to actual needs, and the present invention is not limited thereto. In addition, the material of the circuit board 131 can include epoxy resin, and the first radiation component 133, the second radiation component 135 and the isolation component 137 can be made of printed copper foil, for example, but the present invention is not limited thereto.

[0065] In some embodiments of the present invention, the isolation member 137 is disposed between the first radiation member 133 and the second radiation member 135 to prevent the first radiation member 133 and the second radiation member 135 from interfering with each other. Specifically, the isolation member 137 includes a first end 137a, a second end 137b, and a matching circuit 137c disposed between the first end 137a and the second end 137b, the first end 137a is a ground end, and the second end 137b is electrically connected to the metal frame 115. In addition, the matching circuit 137c includes an inductor component I and a capacitor component C connected in series, so that the isolation member 137 can effectively prevent the first radiation member 133 and the second radiation member 135 from interfering with each other, so that the first radiation member 133 and the second radiation member 135 of the printed antenna 130 are suitable for multiple operating frequency bands.

[0066] In summary, the antenna device of the present invention includes a housing and a printed antenna disposed inside the housing, and the housing has a glass front shell, a glass rear shell, and a metal frame to protect the printed antenna, so the antenna device has excellent mechanical strength. In addition, an opening is specially designed on the frame of the metal frame to expose the printed antenna, and the opening prevents the printed antenna from being interfered by the housing, so that the printed antenna can send and receive signals, so that the antenna device can stably apply to a specific operating frequency band.

[0067] While various embodiments of the present invention have been described above, it should be understood that the various embodiments are presented only as examples and not as limitations. Many modifications may be made to the embodiments disclosed herein without departing from the spirit and scope of the present invention. Therefore, the breadth and scope of the present invention should not be limited by the embodiments described above.

Claims

1. An antenna device, characterized in that: include: The housing comprises: Front glass shell; rear glass shell; and a metal frame, disposed between the front glass shell and the rear glass shell, and connecting the peripheries of the front glass shell and the rear glass shell to form a receiving space together, the metal frame having a first frame portion, a second frame portion and an opening, wherein the opening is defined between the first frame portion and the second frame portion; and A printed antenna is disposed in the housing and between the first frame portion and the second frame portion, wherein the opening at least exposes a portion of the printed antenna; Among them, the metal frame also includes a metal plate, the first frame portion and the second frame portion are connected to the periphery of the metal plate, and the metal plate and the first frame portion jointly carry the printed antenna; the opening includes a first opening and a second opening that are connected, the first opening is located between the first frame portion and the second frame portion, and the second opening is located between the first frame portion and the metal plate.

2. The antenna device according to claim 1, characterized in that: The antenna device further comprises a plastic cap, which is disposed between the front glass shell, the rear glass shell and the metal frame, and is used to fill the opening.

3. The antenna device according to claim 1, characterized in that: The opening is L-shaped.

4. The antenna device according to claim 1, characterized in that: The printed antenna includes a circuit board and a first radiation component, a second radiation component and an isolation component printed on the circuit board, wherein the opening exposes the first radiation component and / or the second radiation component.

5. The antenna device according to claim 4, characterized in that: The isolation component is disposed between the first radiation component and the second radiation component.

6. The antenna device according to claim 4, characterized in that: The isolation component includes a first end, a second end, and a matching circuit disposed between the first end and the second end, the first end is a ground end, and the second end is electrically connected to the metal frame.

7. The antenna device according to claim 4, characterized in that: The isolation component includes a matching circuit, and the matching circuit includes an inductor component and a capacitor component connected in series.

8. The antenna device according to claim 1, characterized in that: The front glass shell and the rear glass shell are made of high-aluminum glass.

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