Antenna structure and electronic device

Abstract

The invention discloses an antenna structure and an electronic device. The antenna structure is arranged on a shell; the antenna structure comprises a blocking part, a heat dissipation module, an antenna module and a grounding element, the heat dissipation module is arranged on one side of the blocking part; the antenna module is arranged on one side of the blocking part, and an interval space is formed between the antenna module and the heat dissipation module along a first direction; the grounding element is arranged in the interval space and is electrically connected with the antenna module and the heat dissipation module, and the grounding element, the antenna module and the heat dissipation module jointly define a slot hole in the interval space; wherein the antenna module has a resonant frequency, and the antenna module is coupled with the excitation slot to generate another resonant frequency. Therefore, the antenna structure and the electronic device provided by the invention can provide multiple frequency bands and have good radiation characteristics in an environment with numerous metals.

Description

Technical Field

[0001] The invention relates to an antenna structure and an electronic device, and in particular to a slot line structure and an electronic device. Background Art

[0002] In recent years, in addition to having good communication transmission quality, electronic devices also need to be beautiful and thin. In addition, users have higher and higher requirements for the user experience of electronic devices. For notebook computers, in response to the high demand for the screen-to-body ratio of notebook computers, the antenna structure is set at the system end. However, the system end of the notebook computer is densely packed with components, and in an environment with many metals, the radiation characteristics of the antenna structure are greatly affected.

[0003] In view of this, providing an antenna structure with multi-band and good radiation characteristics in an electronic device has become an important issue faced by relevant industries in antenna structure design.

[0004] Therefore, it is necessary to provide an antenna structure and an electronic device to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide an antenna structure and an electronic device, which can provide multi-band and good radiation characteristics in an environment where there are many metals.

[0006] According to one embodiment of the structural aspect of the present invention, an antenna structure is provided, which is arranged in a shell, and includes a barrier portion, a heat dissipation module, an antenna module and a grounding element. The heat dissipation module is arranged on one side of the barrier portion. The antenna module is arranged on the aforementioned side of the barrier portion, and has a spacing space between it and the heat dissipation module along a first direction. The grounding element is arranged in the spacing space, electrically connecting the antenna module and the heat dissipation module, and the grounding element, the antenna module and the heat dissipation module jointly define a slot in the spacing space. Among them, the antenna module has a resonant frequency, and the antenna module couples and excites the slot to generate another resonant frequency.

[0007] According to another embodiment of the structural aspect of the present invention, an electronic device is provided, comprising a housing and an antenna structure. The antenna structure is disposed in the housing and comprises a barrier portion, a heat dissipation module, an antenna module and a grounding element. The heat dissipation module is disposed on one side of the barrier portion. The antenna module is disposed on the aforementioned side of the barrier portion and has a spacing space between it and the heat dissipation module along a first direction. The grounding element is disposed in the spacing space and electrically connects the antenna module and the heat dissipation module, and the grounding element, the antenna module and the heat dissipation module jointly define a slot in the spacing space. The antenna module has a resonant frequency, and the antenna module couples and excites the slot to generate another resonant frequency.

[0008] The present invention has the following advantages: first, the slots defined by the grounding element, the antenna module and the heat dissipation module, combined with the design of the radiation element excitation slots, can excite transmission signals of multiple frequency bands; second, the retaining wall structure formed by the connection between the blocking part and the heat dissipation module can isolate the antenna module from the system circuit, so as to effectively reduce the impact of the presence of a large number of metals in the system circuit on the antenna module and further enhance the radiation effect of the antenna module. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 A schematic diagram illustrating an antenna structure according to a first embodiment of the present invention;

[0010] Figure 2 Draw according to Figure 1 A schematic diagram of the spacing space and the margin space in the antenna structure;

[0011] Figure 3 Draw according to Figure 1 A schematic diagram of a first path, a second path, a third path and a fourth path of a radiating element in an antenna structure;

[0012] Figure 4 Draw according to Figure 3 The overall bandwidth waveform of the frequency and return loss of the antenna structure; and

[0013] Figure 5 A schematic diagram of an electronic device according to a second embodiment of the present invention is shown.

[0014] Main component symbols:

[0015] 100, 220 antenna structure

[0016] 110, 221 barrier

[0017] 120, 222 cooling module

[0018] 121 Part 1

[0019] 122 Part 2

[0020] 130, 223 antenna module

[0021] 131 base

[0022] 132 Feedthrough

[0023] 133 Radiators

[0024] 140, 224 grounding element

[0025] 150, 225 slots

[0026] 200 Electronic devices

[0027] 210 Shell

[0028] 230 System Circuit

[0029] 240 Shaft

[0030] A. Interval space

[0031] B Margin Space

[0032] d1, d2, d3, d4, d5, d6 length

[0033] L1 First direction

[0034] L2 Second direction

[0035] P1 First Path

[0036] P2 Second Path

[0037] P3 Third Path

[0038] P4 Fourth Path DETAILED DESCRIPTION

[0039] See also Figure 1 and Figure 2 ,in Figure 1 A schematic diagram illustrating an antenna structure 100 according to a first embodiment of the present invention; and Figure 2 Draw according to Figure 1 Schematic diagram of the separation space A and the margin space B in the antenna structure 100. The antenna structure 100 is disposed in a housing (not shown), and the antenna structure 100 includes a blocking portion 110, a heat dissipation module 120, an antenna module 130, a grounding element 140 and a slot 150. The heat dissipation module 120 and the antenna module 130 are disposed on one side of the blocking portion 110, and the grounding element 140 and the slot 150 are disposed between the heat dissipation module 120 and the antenna module 130. In the first embodiment, taking a notebook computer as an example, the housing is the outer shell of the C surface and the D surface of the notebook computer, the blocking portion 110 is a part of the hinge of the notebook computer; the heat dissipation module 120 is a built-in heat dissipation system of the notebook computer; the grounding element 140 is a conductive foam (EMIGasket), and the grounding element 140 is connected to a system ground (System Ground) of the notebook computer, but the present invention is not limited thereto.

[0040] There is a spacing space A between the antenna module 130 and the heat dissipation module 120 along a first direction L1, and there is a margin space B between the antenna module 130 and the heat dissipation module 120 along a second direction L2, wherein the first direction L1 is perpendicular to the second direction L2. The grounding element 140 is disposed in the spacing space A and adjacent to the margin space B, and electrically connects the antenna module 130 and the heat dissipation module 120. The grounding element 140, the antenna module 130, and the heat dissipation module 120 jointly define a slot 150 in the spacing space A. In the first embodiment, the slot 150 is an open slot.

[0041] The heat dissipation module 120 is L-shaped and includes a first portion 121 and a second portion 122. There is a spacing space A between the antenna module 130 and the first portion 121 along the first direction L1, and there is a margin space B between the antenna module 130 and the second portion 122 along the second direction L2. Figure 1 and Figure 3 As shown, in the first embodiment, the length d1 of the spacing space A along the first direction L1 is between 0.5mm and 3mm, and the length d2 of the spacing space A along the second direction L2 is between 6mm and 36mm; the length d3 of the margin space B along the second direction L2 is between 5mm and 7mm; the length d4 of the blocking portion 110 along the second direction L2 is between 1mm and 16mm; the length d5 ​​of the heat dissipation module 120 along the second direction L2 is between 20mm and 60mm; and the length d6 of the slot 150 along the second direction L2 is between 5mm and 20mm.

[0042] The antenna module 130 has a resonant frequency, and the antenna module 130 is coupled to the excitation slot 150 to generate another resonant frequency. The antenna module 130 includes a base 131, a feeding element 132 and a radiating element 133, the feeding element 132 and the radiating element 133 are disposed on the base 131, and the radiating element 133 connects the feeding element 132 and the grounding element 140. The feeding element 132 is electrically connected to a coaxial transmission line (not shown) and coupled to a signal source (not shown) to feed a signal, and the radiating element 133 is fed with a signal through the feeding element 132 to generate a resonant frequency, and is coupled to the excitation slot 150 to generate another resonant frequency, so as to generate transmission signals of multiple frequency bands.

[0043] It should be particularly noted that the barrier portion 110 and the heat dissipation module 120 are connected to form a wall-like structure to isolate the antenna module 130 from a system circuit (not shown) of the notebook computer, thereby effectively reducing the noise impact of the system circuit on the antenna module 130 and further improving the radiation effect of the antenna module 130.

[0044] See also Figure 3 and Figure 4 ,in Figure 3 Draw according to Figure 1 A schematic diagram of a first path P1, a second path P2, a third path P3 and a fourth path P4 of a radiating element 133 in an antenna structure 100; and Figure 4 Draw according to Figure 3 The overall bandwidth waveform of the frequency and return loss of the antenna structure 100. The radiating element 133 includes a first path P1, a second path P2, a third path P3 and a fourth path P4. The resonant frequency generated by the radiating element 133 feeding the signal includes a first frequency band, a second frequency band, a third frequency band and a fourth frequency band. Among them, the first path P1 generates a first frequency band, and the first frequency band is between 2.43 GHz and 2.52 GHz; the second path P2 generates a second frequency band, and the second frequency band is between 5.15 GHz and 5.5 GHz; the third path P3 generates a third frequency band, and the third frequency band is between 5.5 GHz and 5.95 GHz; and the fourth path P4 generates a fourth frequency band, and the fourth frequency band is between 6.28 GHz and 7.15 GHz. Another resonant frequency generated by the antenna module 130 coupling the excitation slot 150 includes a fifth frequency band and a sixth frequency band. Among them, the fifth frequency band is between 2.38 GHz and 2.42 GHz; and the sixth frequency band is between 5.95 GHz and 6.28 GHz.

[0045] In detail, the first path P1 of the radiating element 133 can provide a low-frequency mode and contribute part of the low-frequency characteristics, the second path P2 and the third path P3 of the radiating element 133 can provide a high-frequency mode and contribute to the 5G frequency band characteristics, the fourth path P4 of the radiating element 133 can provide a high-frequency mode and contribute to the Wi-Fi 6E frequency band characteristics, and the antenna module 130 couples the excitation slot 150 to provide low-order modes and high-frequency high-order modes.

[0046] Thus, by using the slot 150 defined by the grounding element 140, the antenna module 130 and the heat dissipation module 120 in the shell, and by using the radiation element 133 to stimulate the slot 150, the radiation characteristic efficiency of the low-frequency part can be increased by about 40 MHz bandwidth and 15% efficiency contribution, while the bandwidth efficiency contribution of the high-frequency part can be increased by about 300 MHz.

[0047] See also Figure 5 , Figure 5A schematic diagram of an electronic device 200 according to a second embodiment of the present invention is shown. The electronic device 200 includes a housing 210, an antenna structure 220, a system circuit 230, and a hinge 240. The antenna structure 220, the system circuit 230, and the hinge 240 are disposed on the housing 210. In the second embodiment, the electronic device 200 is a notebook computer, the housing 210 is the outer shell of the C surface and the D surface of the notebook computer, and the system circuit 230 is the hardware circuit of the notebook computer, but the present invention is not limited thereto.

[0048] The antenna structure 220 includes a blocking portion 221, a heat dissipation module 222, an antenna module 223, a grounding element 224, and a slot 225. The blocking portion 221 is connected to the heat dissipation module 222 to isolate the antenna module 223 from the system circuit 230. The blocking portion 221 is connected to the heat dissipation module 222 to form a wall-like structure to isolate the antenna module 223 from the system circuit 230, thereby effectively reducing the impact of the system circuit 230 on the antenna module 223 due to the densely arranged parts and the presence of a large number of metals, and further improving the radiation effect of the antenna module 223. Among them, the blocking portion 221 is a part of the rotating shaft 240. In addition, in the second embodiment, the heat dissipation module 222, the antenna module 223, the grounding element 224, and the slot 225 are respectively the same or similar to the heat dissipation module 120, the antenna module 130, the grounding element 140, and the slot 150 of the first embodiment, and are not further described here.

[0049] It can be seen from the above embodiments that the present invention has the following advantages: First, the slots defined by the grounding element, the antenna module and the heat dissipation module, combined with the design of the radiation element excitation slots, can excite transmission signals of multiple frequency bands; Second, the retaining wall-like structure formed by the connection between the blocking portion and the heat dissipation module can isolate the antenna module from the system circuit, so as to effectively reduce the impact of the presence of a large number of metals in the system circuit on the antenna module and further enhance the radiation effect of the antenna module.

[0050] Although the present invention has been disclosed in the form of an implementation method as above, it is not intended to limit the present invention. Any technician in this field should be able to make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the invention should be based on the scope defined by the attached claims.

Claims

1. An antenna structure, the antenna structure being disposed in a housing, the antenna structure comprising: a barrier portion; a heat dissipation module, the heat dissipation module being disposed on one side of the barrier portion; an antenna module, the antenna module being disposed on the side of the blocking portion and having a spacing space between the antenna module and the heat dissipation module along a first direction; and a grounding element, which is disposed in the partition space and electrically connected to the antenna module and the heat dissipation module, wherein the grounding element, the antenna module and the heat dissipation module jointly define a slot in the partition space; The antenna module has a resonance frequency, and the antenna module couples and excites the slot to generate another resonance frequency.

2. The antenna structure as claimed in claim 1, wherein the antenna module comprises: A building; A feeding component, which is disposed on the base and is used to feed a signal; as well as A radiation element is arranged on the base and connected to the feeding element and the grounding element. The radiation element feeds the signal through the feeding element to generate the resonance frequency and couples and excites the slot to generate the other resonance frequency.

3. The antenna structure as claimed in claim 2, wherein the radiation element comprises a first path, a second path, a third path and a fourth path, and the resonant frequency comprises a first frequency band, a second frequency band, a third frequency band and a fourth frequency band; in, The first path generates the first frequency band, and the first frequency band is between 2.43 GHz and 2.52 GHz; The second path generates the second frequency band, and the second frequency band is between 5.15 GHz and 5.5 GHz; The third path generates the third frequency band, and the third frequency band is between 5.5 GHz and 5.95 GHz; and The fourth path generates the fourth frequency band, and the fourth frequency band is between 6.28 GHz and 7.15 GHz.

4. The antenna structure as claimed in claim 2, wherein the other resonant frequency generated by the antenna module coupling and exciting the slot includes a fifth frequency band and a sixth frequency band; in, The fifth frequency band is between 2.38 GHz and 2.42 GHz; and The sixth frequency band is between 5.95 GHz and 6.28 GHz. 5 . The antenna structure as claimed in claim 1 , wherein a margin space is defined between the antenna module and the heat dissipation module along a second direction, the second direction is perpendicular to the first direction, and the grounding element is adjacent to the margin space.

6. The antenna structure as claimed in claim 5, wherein the heat dissipation module is L-shaped and comprises a first portion and a second portion; The antenna module has a spacing space between the antenna module and the first portion along the first direction; The antenna module has the margin space between the second portion along the second direction.

7. The antenna structure according to claim 6, wherein: The length of the spacing space along the first direction is between 0.5 mm and 3 mm; The length of the margin space along the second direction is between 5 mm and 7 mm; The length of the slot along the second direction is between 5 mm and 20 mm. The antenna structure as claimed in claim 1 , wherein the blocking portion is a part of a rotating shaft of an electronic device.

9. An electronic device, comprising: a housing; as well as An antenna structure is disposed on the housing and comprises: a barrier portion; a heat dissipation module, the heat dissipation module being disposed on one side of the barrier portion; an antenna module, the antenna module being disposed on the side of the blocking portion and having a separation space between the antenna module and the heat dissipation module along a first direction; and a grounding element, which is disposed in the partition space and electrically connected to the antenna module and the heat dissipation module, wherein the grounding element, the antenna module and the heat dissipation module jointly define a slot in the partition space; The antenna module has a resonance frequency, and the antenna module couples and excites the slot to generate another resonance frequency.

10. The electronic device as claimed in claim 9, wherein the antenna module comprises: A building; A feeding component, which is disposed on the base and is used to feed a signal; as well as A radiation element is arranged on the base and connected to the feeding element and the grounding element. The radiation element feeds the signal through the feeding element to generate the resonance frequency and couples and excites the slot to generate the other resonance frequency.

11. The electronic device as claimed in claim 10, wherein the radiation element comprises a first path, a second path, a third path and a fourth path, and the resonant frequency comprises a first frequency band, a second frequency band, a third frequency band and a fourth frequency band; in, The first path generates the first frequency band, and the first frequency band is between 2.43 GHz and 2.52 GHz; The second path generates the second frequency band, and the second frequency band is between 5.15 GHz and 5.5 GHz; The third path generates the third frequency band, and the third frequency band is between 5.5 GHz and 5.95 GHz; and The fourth path generates the fourth frequency band, and the fourth frequency band is between 6.28 GHz and 7.15 GHz.

12. The electronic device as claimed in claim 10, wherein the other resonance frequency generated by the antenna module coupling and exciting the slot includes a fifth frequency band and a sixth frequency band; in, The fifth frequency band is between 2.38 GHz and 2.42 GHz; and The sixth frequency band is between 5.95 GHz and 6.28 GHz. 13 . The electronic device as claimed in claim 9 , wherein a margin space is defined between the antenna module and the heat dissipation module along a second direction, the second direction is perpendicular to the first direction, and the grounding element is adjacent to the margin space.

14. The electronic device as claimed in claim 13, wherein the heat dissipation module is L-shaped and comprises a first portion and a second portion; The antenna module has a spacing space between the antenna module and the first portion along the first direction; The antenna module has the margin space between the second portion along the second direction.

15. The electronic device as claimed in claim 14, wherein: The length of the spacing space along the first direction is between 0.5 mm and 3 mm; The length of the margin space along the second direction is between 5 mm and 7 mm; The length of the slot along the second direction is between 5 mm and 20 mm.

16. The electronic device as claimed in claim 9, further comprising: a system circuit, wherein the system circuit is disposed in the housing; The blocking portion is connected to the heat dissipation module to isolate the antenna module from the system circuit.

17. The electronic device as claimed in claim 9, further comprising: A rotating shaft, the rotating shaft is disposed on the housing; Wherein, the blocking portion is a part of the rotating shaft.

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