CN215933819U - Antenna module and smart television - Google Patents
Antenna module and smart television Download PDFInfo
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- CN215933819U CN215933819U CN202121868402.5U CN202121868402U CN215933819U CN 215933819 U CN215933819 U CN 215933819U CN 202121868402 U CN202121868402 U CN 202121868402U CN 215933819 U CN215933819 U CN 215933819U
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Abstract
The embodiment of the application provides an antenna module and smart television, and the antenna module includes: the circuit layout area is provided with a WiFi feeding point and a Bluetooth feeding point; the WiFi antenna is electrically connected with the WiFi feeding point; the Bluetooth antenna is electrically connected with the Bluetooth feed point; and the grounding area is electrically connected with the WiFi antenna and the Bluetooth antenna and is grounded. In the antenna module of this application, through with the wiFi antenna, the bluetooth antenna, circuit layout area and ground connection region are integrated together, form a holistic antenna module, and set up wiFi feed point and bluetooth feed point in circuit layout area, wiFi feed point and bluetooth feed point respectively with the wiFi antenna, the bluetooth antenna electricity is connected, consequently need not to design alone each part such as wiFi antenna, bluetooth antenna respectively, thereby can improve antenna module's integrated level, reduce the overall arrangement space that antenna module took in the smart television.
Description
Technical Field
The application relates to the technical field of communication, in particular to an antenna module and an intelligent television.
Background
The smart television is generally provided with a WiFi antenna and a bluetooth antenna for realizing a WiFi communication function and a bluetooth communication function. For example, the smart television can realize WiFi communication with the router through a WiFi antenna, and realize bluetooth communication with the smart phone through a bluetooth antenna.
At present, smart television's design more and more tends to frivolous, and the space that can be used for overall arrangement antenna in the smart television is more and more littleer. Therefore, how to design the antenna of the smart television in a limited space becomes a difficult problem.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides an antenna module and an intelligent television, which can improve the integration level of the antenna module and reduce the layout space occupied by the antenna module in the intelligent television.
An embodiment of the present application provides an antenna module, including:
the circuit layout area is provided with a WiFi feeding point and a Bluetooth feeding point;
the WiFi antenna is electrically connected with the WiFi feeding point;
the Bluetooth antenna is electrically connected with the Bluetooth feed point;
and the grounding area is electrically connected with the WiFi antenna and the Bluetooth antenna and is grounded.
In some embodiments, the WiFi antenna includes a first resonant stub, a second resonant stub, and a resonant ground, the first resonant stub coupled with the second resonant stub, the first resonant stub electrically connected with the WiFi feed point, the second resonant stub connected with the resonant ground, the resonant ground electrically connected with the ground region.
In some embodiments, the resonating ground is formed with a first gap that divides the resonating ground into a first region and a second region, the first region and the second region are connected by an inductor, the first region and the second resonating stub are connected, and the first region and the ground region are electrically connected.
In some embodiments, the first region is formed with a second slot, the second resonant stub is connected to one side of the second slot, and the bluetooth antenna is located on the other side of the second slot.
In some embodiments, the first resonant stub is electrically connected to the WiFi feed point through a microstrip line.
In some embodiments, the bluetooth antenna is a microstrip antenna, the length of a resonant slot of the microstrip antenna is one quarter of the wavelength of the bluetooth medium, and the length of a radiation slot of the microstrip antenna is greater than one half of the wavelength of the bluetooth medium.
In some embodiments, the bluetooth feed point is electrically connected to the microstrip antenna through a microstrip line.
In some embodiments, the circuit layout region is integrally formed with the microstrip antenna, a plurality of continuously distributed via holes are formed between the circuit layout region and the microstrip antenna, and the hole walls of the via holes are electrically connected with the ground region.
The embodiment of the application provides an intelligent television, including:
a television main body;
the antenna module is arranged on the television main body and is any one of the antenna modules.
In some embodiments, the tv main body includes a metal back plate and a metal base connected to the metal back plate, the antenna module is connected to the metal base, and a region of the metal base opposite to the antenna module is formed with a gap to form a clearance region of the antenna module.
The antenna module that this application embodiment provided, through with the wiFi antenna, the bluetooth antenna, circuit layout area and ground connection region are integrated together, form a holistic antenna module, and set up wiFi feed point and bluetooth feed point in circuit layout area, wiFi feed point and bluetooth feed point respectively with the wiFi antenna, the bluetooth antenna electricity is connected, consequently need not to design alone each part such as wiFi antenna, bluetooth antenna respectively, thereby can improve antenna module's integrated level, reduce the overall arrangement space that antenna module took in the smart television.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic structural diagram of an antenna module according to an embodiment of the present application.
Fig. 2 is a schematic plan view of a first metal layer of the antenna module shown in fig. 1.
Fig. 3 is another schematic plan view of the first metal layer of the antenna module shown in fig. 1.
Fig. 4 is a schematic plan view of a second metal layer of the antenna module shown in fig. 1.
Fig. 5 is a schematic structural diagram of an intelligent television provided in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides an antenna module, which can be arranged in an intelligent television to realize wireless communication of the intelligent television, for example, WiFi communication and Bluetooth communication of the intelligent television.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an antenna module 100 according to an embodiment of the present disclosure.
The antenna module 100 includes a first metal layer 10, a substrate 20, and a second metal layer 30. The first metal layer 10 and the second metal layer 30 are respectively disposed on two opposite surfaces of the substrate 20. The first metal layer 10 and the second metal layer 30 may be made of copper, silver, or other materials with good electrical conductivity, and the substrate 20 may be made of FR4 epoxy resin. For example, the first and second metal layers 10 and 30 may be copper plated layers disposed on two opposite surfaces of the substrate 20.
The first metal layer 10 may form a circuit layout region, a WiFi antenna, and a bluetooth antenna, and the second metal layer 30 may form a ground region and be grounded. The WiFi antenna and the bluetooth antenna on the first metal layer 10 are both connected to the grounding area on the second metal layer 30, so that the WiFi antenna and the bluetooth antenna are grounded, and a wireless communication function is achieved.
In some embodiments, the substrate 20 may have a thickness of 1.6mm (millimeters) and may have dimensions of 60mm 36 mm.
In some embodiments, the thickness of the first metal layer 10 and the second metal layer 30 may be 0.5 to 1 ounce.
Referring to fig. 2, fig. 2 is a schematic plan view of the first metal layer 10 of the antenna module shown in fig. 1.
The first metal layer 10 includes a WiFi antenna 11, a bluetooth antenna 12, and a circuit layout area 13. The WiFi antenna 11 and the bluetooth antenna 12 are both electrically connected to the ground region formed on the second metal layer 30. The WiFi antenna 11 is configured to implement a WiFi communication function. The bluetooth antenna 12 is configured to implement a bluetooth communication function. The circuit layout area 13 is configured to set the electronic devices, for example, the circuit layout area 13 may set the WiFi feeding point 131 and the bluetooth feeding point 132. It is understood that the WiFi feeding point 131 may be a WiFi feeding pad disposed in the circuit layout area 13; likewise, the bluetooth feeding point 132 may be a bluetooth feeding pad disposed in the circuit layout area 13.
In some embodiments, as shown in fig. 2, WiFi antenna 11 includes a first resonant stub 111, a second resonant stub 112, and a resonant ground 113. It is understood that the first resonant stub 111, the second resonant stub 112, and the resonant ground 113 may be formed by etching on the first metal layer 10.
The first resonant stub 111 is coupled to the second resonant stub 112. In practical applications, the gap between the first resonant stub 111 and the second resonant stub 112 may be set to a suitable distance, for example, the gap is set to 2mm, so that the first resonant stub 111 and the second resonant stub 112 can achieve electromagnetic coupling. The first resonant stub 111 is electrically connected to the WiFi feeding point 131, for example, the first resonant stub 111 may be electrically connected to the WiFi feeding point 131 through a microstrip line. The second resonant stub 112 is connected to the resonant ground 113, for example, the second resonant stub 112 may be integrally formed with the resonant ground 113. The resonant ground 113 is electrically connected to a ground region formed on the second metal layer 30.
In some embodiments, with continued reference to fig. 2, the resonating ground 113 is formed with a first slot 1131. The first slit 1131 divides the resonating ground 113 into a first region 1132 and a second region 1133. The first region 1132 is electrically connected to the second region 1133 via an inductor 1134. The first region 1132 is connected to the second resonant stub 112, and the first region 1132 is electrically connected to a ground region formed on the second metal layer 30.
The number of the inductors 1134 may be one, or may be multiple inductors connected in parallel. It can be understood that the first region 1132 is electrically connected to the second region 1133 through an inductor, and can filter the resonant frequency, so as to separate the high frequency from the low frequency, thereby filtering the interference signal during WiFi communication and improving the stability of WiFi communication.
In some embodiments, with continued reference to fig. 2, the first region 1132 is also formed with a second gap 1135. The second slit 1135 may be linear or "L" shaped. The second resonant branch 112 is connected to one side of the second slot 1135, and the bluetooth antenna 12 is located at the other side of the second slot 1135. It is understood that the WiFi antenna 11 mainly transmits the WiFi signal through the first resonant branch 111 and the second resonant branch 112. Therefore, when the second resonant branch 112 and the bluetooth antenna 12 are respectively located at two sides of the second slot 1135, the WiFi antenna 11 and the bluetooth antenna 12 can be isolated, and the isolation between the WiFi antenna 11 and the bluetooth antenna 12 is improved.
In the embodiment of the present application, through practical debugging, the isolation between the WiFi antenna 11 and the bluetooth antenna 12 can reach 37 dB. It can be seen that by providing the second slot 1135 in the first region 1132, the isolation between the WiFi antenna 11 and the bluetooth antenna 12 can be improved.
In some embodiments, referring to fig. 3, fig. 3 is another schematic plan view of the first metal layer 10 of the antenna module shown in fig. 1. However, the resonant ground 113 may be formed as a whole without providing the first slit 1131 and the second slit 1135 in the above embodiments. It can be understood that when the first gap 1131 and the second gap 1135 are not disposed on the resonating ground 113, the structural integrity of the resonating ground 113 can be ensured, and the structural strength can be improved.
In some embodiments, with continued reference to fig. 2, the bluetooth antenna 12 is a microstrip antenna. The resonant slot length d1 of the microstrip antenna 12 is one quarter of the wavelength of the bluetooth medium, and the radiating slot length d2 of the microstrip antenna 12 is greater than one half of the wavelength of the bluetooth medium. The bluetooth medium wavelength is a wavelength of a bluetooth signal transmitted in the substrate 20. It will be appreciated that because of the dielectric constant of the substrate 20, the wavelength at which bluetooth signals are transmitted in the substrate 20 is different from the wavelength at which bluetooth signals are transmitted in a vacuum.
It can be understood that the length d1 of the resonant slot of the microstrip antenna 12 is set to be one quarter of the wavelength of the bluetooth medium, so that the design of the large-aperture bluetooth antenna can be realized, and the forward gain of the bluetooth antenna 12 is improved.
In some embodiments, the microstrip antenna 12 is fed by bias feeding, which facilitates impedance matching of the ports.
In some embodiments, the microstrip antenna 12 is electrically connected to the bluetooth feed point 132 via a microstrip line. It is understood that the bluetooth feeding point 132 may be formed integrally with a microstrip line connecting the bluetooth feeding point 132. For example, the entirety of the microstrip line and the bluetooth feeding point 132 may be etched and formed on the first conductor layer 10, and the zero-potential dividing line may be formed around the etched entirety by means of via-copper plating.
In some embodiments, with continued reference to fig. 2, the circuit layout region 13 is formed integrally with the microstrip antenna 12. A plurality of through holes 14 are formed between the circuit layout region 13 and the microstrip antenna 12, and the hole walls of the through holes 14 are electrically connected to the ground region formed on the second metal layer 30.
It can be understood that, by forming a plurality of via holes 14 continuously distributed between the circuit layout region 13 and the microstrip antenna 12 and grounding the hole walls of the via holes 14, a zero-potential dividing line can be formed between the circuit layout region 13 and the microstrip antenna 12, and mutual influence between the circuit layout region 13 and the microstrip antenna 12 is avoided, so that the communication stability of the microstrip antenna 12, that is, the bluetooth communication stability can be improved.
Referring to fig. 4, fig. 4 is a schematic plan view of the second metal layer 30 of the antenna module shown in fig. 1.
The second metal layer 30 includes a ground region 31 and a microstrip line 32.
The ground region 31 is provided with a plurality of vias 33 distributed in series. Wherein, a plurality of vias 33 distributed continuously are disposed corresponding to the plurality of vias 14 distributed continuously on the first metal layer 10. It is understood that vias may be disposed on the substrate 20 at positions corresponding to the vias 33 and 14, and conductors may be disposed in the vias 33 and 14 on the substrate 20 to electrically connect the first metal layer 10 and the second metal layer 30. For example, copper plating may be provided on the walls of the via hole, the via hole 33, and the via hole 14 on the substrate 20 to electrically connect the first metal layer 10 and the second metal layer 30, for example, to electrically connect the resonant ground 113 and the ground area 31, and to electrically connect the zero-potential dividing line between the circuit layout area 13 and the bluetooth antenna 12 and the ground area 31.
The microstrip line 32 may be formed inside the ground region 31, and the microstrip line 32 is electrically insulated from the ground region 31. For example, a microstrip line 32 may be etched on the second metal layer 30, and a zero-potential dividing line may be formed between the microstrip line 32 and the ground region 31 in a via copper plating manner to achieve electrical insulation. The microstrip line 32 is electrically connected to the WiFi feeding point 131 and the first resonant stub 111. For example, both ends of the microstrip line 32 may be electrically connected to the WiFi feeding point 131 and the first resonant stub 111 by means of via copper plating.
The antenna module 100 provided by the embodiment of the application, by integrating the WiFi antenna 11, the bluetooth antenna 12, the circuit layout area 13 and the grounding area 31 together, a whole antenna module is formed, and the WiFi feeding point 131 and the bluetooth feeding point 132 are arranged in the circuit layout area 13, the WiFi feeding point 131 and the bluetooth feeding point 132 are respectively electrically connected with the WiFi antenna 11 and the bluetooth antenna 12, so that it is not necessary to separately design each part of the WiFi antenna, the bluetooth antenna and the like, and thus the integration level of the antenna module 100 can be improved, and the layout space occupied by the antenna module 100 in the smart television is reduced.
The embodiment of the present application further provides an intelligent television, such as the intelligent television 200 shown in fig. 5. Fig. 5 is a schematic structural diagram of an intelligent television 200 according to an embodiment of the present application.
The smart tv 200 includes a tv main body 220 and the antenna module 100, and the antenna module 100 is mounted to the tv main body 220. Wherein the tv main body 220 is configured to implement a play function. The antenna module 100 is configured to implement a wireless communication function.
In some embodiments, the tv body 220 includes a metal back panel 221 and a metal chassis 222 connected to the metal back panel 221. The metal back plate 221 and the metal base 222 may be made of aluminum alloy, for example.
Wherein the antenna module 100 is connected to the metal base 222. A gap 2221 is formed in an area of the metal base 222 opposite to the antenna module 100, and the antenna module 100 is disposed in the gap 2221, so that the gap 2221 may form a clearance area of the antenna module 100 to ensure wireless communication performance of the antenna module 100.
It is understood that in other embodiments, the base of the tv main body 220 may be made of non-metal material, such as plastic base. Because the non-metallic material can not form the shielding effect to radio signal, consequently when adopting non-metallic base, need not to set up the breach on the base and form the headroom region.
In the description of the present application, it is to be understood that terms such as "first", "second", and the like are used merely to distinguish one similar element from another, and are not to be construed as indicating or implying relative importance or implying any indication of the number of technical features indicated.
The antenna module and the smart television provided by the embodiment of the application are described in detail above. The principles and implementations of the present application are described herein using specific examples, which are presented only to aid in understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. An antenna module, comprising:
the circuit layout area is provided with a WiFi feeding point and a Bluetooth feeding point;
the WiFi antenna is electrically connected with the WiFi feeding point;
the Bluetooth antenna is electrically connected with the Bluetooth feed point;
and the grounding area is electrically connected with the WiFi antenna and the Bluetooth antenna and is grounded.
2. The antenna module of claim 1, wherein the WiFi antenna comprises a first resonant stub, a second resonant stub, and a resonant ground, the first resonant stub coupled to the second resonant stub, the first resonant stub electrically connected to the WiFi feed point, the second resonant stub connected to the resonant ground, the resonant ground electrically connected to the ground region.
3. The antenna module according to claim 2, wherein the resonating ground is formed with a first slit that divides the resonating ground into a first region and a second region, the first region and the second region are connected by an inductance, the first region and the second resonating stub are connected, and the first region and the ground region are electrically connected.
4. The antenna module of claim 3, wherein the first area is formed with a second slot, the second resonant stub is connected to one side of the second slot, and the Bluetooth antenna is located on the other side of the second slot.
5. The antenna module of any one of claims 2 to 4, wherein the first resonant stub is electrically connected to the WiFi feeding point via a microstrip line.
6. The antenna module of any one of claims 1 to 4, wherein the Bluetooth antenna is a microstrip antenna, the microstrip antenna has a resonant slot length of one quarter of the wavelength of the Bluetooth medium, and the microstrip antenna has a radiating slot length of more than one half of the wavelength of the Bluetooth medium.
7. The antenna module of claim 6, wherein the Bluetooth feed point is electrically connected to the microstrip antenna via a microstrip line.
8. The antenna module of claim 6, wherein the circuit layout region is integrally formed with the microstrip antenna, a plurality of via holes are formed between the circuit layout region and the microstrip antenna, and the hole walls of the via holes are electrically connected to the ground region.
9. An intelligent television, comprising:
a television main body;
an antenna module mounted to the television body, the antenna module being as claimed in any one of claims 1 to 8.
10. The smart television of claim 9, wherein the television body comprises a metal back plate and a metal base connected with the metal back plate, the antenna module is connected with the metal base, and a gap is formed in an area of the metal base opposite to the antenna module to form a clearance area of the antenna module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121868402.5U CN215933819U (en) | 2021-08-10 | 2021-08-10 | Antenna module and smart television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121868402.5U CN215933819U (en) | 2021-08-10 | 2021-08-10 | Antenna module and smart television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215933819U true CN215933819U (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121868402.5U Active CN215933819U (en) | 2021-08-10 | 2021-08-10 | Antenna module and smart television |
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| CN (1) | CN215933819U (en) |
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2021
- 2021-08-10 CN CN202121868402.5U patent/CN215933819U/en active Active
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