WO2020088407A1

WO2020088407A1 - Antenna, signal transmission device and television

Info

Publication number: WO2020088407A1
Application number: PCT/CN2019/113699
Authority: WO
Inventors: 尹柳中; 郭康清; 王子同; 谢仁礼; 杨福军
Original assignee: 深圳Tcl新技术有限公司
Priority date: 2018-10-30
Filing date: 2019-10-28
Publication date: 2020-05-07
Also published as: CN109326879A; CN109326879B

Abstract

The present application discloses an antenna, a signal transmission device and a television. The antenna comprises a dielectric substrate and a radiation patch, and the radiation patch is mounted on a surface of the dielectric substrate. The radiation patch is provided with a slit, and the slit is used for improving the electromagnetic coupling level of the antenna. A pin hole is further provided on the antenna, the pin hole penetrates through the dielectric substrate and the radiation patch, and the pin hole is used for arranging a pin, so as to increase the inductance of the antenna or cancel the capacitance of the antenna.

Description

Antenna, signal transmission device and TV The

Related instructions

This application requires the priority of the Chinese patent application filed on October 30, 2018 in the Chinese Patent Office with the application number 201811283799.4 and the application name "Antenna, Signal Transmission Device and TV", the entire content of which is incorporated into the application by reference .

Technical field

This application relates to the field of communication technology, and in particular, to an antenna, a signal transmission device, and a television.

Background technique

At present, the wireless transmission technology of TV sets is becoming more and more widely used to facilitate users' use. However, the size of the current TV screen is also getting larger and larger, especially under the background of complex metal in the TV, it is used as Bluetooth for human-computer interaction, and MIMO and other signal transmission devices for wireless transmission of TV signals. There are often dead spots or blind spots in the process. In the dead spots or blind spots of signal transmission, there is a phenomenon that Bluetooth communication is not available, and the WIFI connection is stuck, resulting in poor wireless transmission. Due to the constraints of various conditions, such as the reflection of electromagnetic signals from large metals, there is not much research in this area in the industry, and no effective solution has been found.

The current solution in the industry is to transmit the TV signal to the antenna through the wireless transmission module, and then realize the signal transmission between the blind antenna and the antenna through another antenna, so as to realize the coverage of the signal near the blind antenna. Because the transmission efficiency of the antenna directly determines the coverage of the blind antenna signal, and the transmission efficiency of the existing antenna is low, the signal cannot be completely transmitted.

Summary of the invention

The main purpose of the present application is to provide an antenna, a signal transmission device, and a television set, which aim to solve the problem that the transmission efficiency of the existing antenna is low, so that the signal cannot be completely transmitted.

To achieve the above objective, an antenna proposed by the present application includes a dielectric substrate and a radiation sheet, and the radiation sheet is installed on a surface of the dielectric substrate;

Wherein, a gap is provided on the radiation sheet, and the gap is used to improve the electromagnetic coupling degree of the antenna;

The antenna is also provided with a pin hole, and the pin hole passes through the dielectric substrate and the radiating sheet, and the pin hole is used to install a pin to increase the inductance of the antenna or offset the antenna Capacitive.

Optionally, the antenna further includes a radio frequency line, the radio frequency line is installed on the surface of the dielectric substrate on the same side as the radiation plate, and one end of the radio frequency line is connected to the signal port of the radiation plate , The other end of the radio frequency cable is connected to an external device.

Optionally, the antenna further includes a transmission medium for transmitting signals, and the radio frequency line is connected to the signal port of the radiation sheet through the transmission medium.

Optionally, the transmission medium is a topology matching network.

Optionally, the radio frequency line is a microstrip radio frequency line.

Optionally, the size of the gap is smaller than the size of the radiation sheet.

Optionally, the dielectric substrate has a rectangular structure.

Optionally, the dielectric substrate is a PCB board.

Optionally, the dielectric substrate is an FR4 epoxy board.

Optionally, the thickness of the dielectric substrate ranges from 1 mm to 2 mm.

Optionally, a side of the dielectric substrate facing away from the radiation sheet is a ground plane, and a thin metal layer is provided on the ground plane.

Optionally, the antenna is a microstrip antenna.

In the embodiments of the present application, the dielectric substrate and the radiating plate are provided with a gap on the radiating plate to improve the electromagnetic coupling degree of the antenna, and a pin hole is provided on the antenna and the pin is installed in the pin hole to Increase the inductance of the antenna or offset the capacitance of the antenna. In this way, by opening a gap in the radiating sheet, the electromagnetic coupling degree of the antenna is improved, and the impedance matching of the antenna signal transmission is realized by the pin loading technology, thereby improving the signal transmission efficiency of the antenna.

In order to achieve the above object, the present application also provides a signal transmission device. The signal transmission device includes two of the foregoing antennas, and the signal transmission device further includes a signal transmission module and a blind-filling antenna;

Wherein, the two antennas are arranged at intervals, one of the antennas is connected to the signal transmission module, and the other of the antennas is connected to the blind antenna.

Optionally, the distance between the two antennas ranges from 1 mm to 10 mm.

In this way, by selecting the two antennas in the above embodiment and setting the two antennas at intervals, in the signal transmission process of the signal transmission device, the signal transmission efficiency can be improved, and at the same time, the signal can be blinded to make the signal Capable of omnidirectional coverage or directional projection.

In order to achieve the above objective, a television set also proposed in this application, the television set includes the above-mentioned signal transmission device;

Wherein, the television set is provided with a rear case, and the signal transmission device is provided in the rear case; or, the television set is provided with an accommodation space, and the signal transmission device is provided in the accommodation space.

In this way, by selecting the signal transmission device in the above embodiment and setting the two antennas in the signal transmission device at intervals, in the signal transmission process of the television, the signal transmission efficiency can be improved, and at the same time, the signal can be supplemented. Blind, so that the signal can be omnidirectional coverage or directional projection.

BRIEF DESCRIPTION

1 is a schematic diagram of the front structure of an embodiment of the antenna of the present application;

2 is a schematic diagram of a cross-sectional structure in an embodiment of an antenna of the present application;

FIG. 3 is a schematic structural diagram of an embodiment of a signal transmission device of the present application.

Description of Drawing Symbols:

Label	name	Label	name
1	Dielectric matrix	3	RF cable
2	Radiator	4	Transmission medium
twenty one	Gap	5	antenna
twenty two	Pin hole	6	Signal transmission module
7	Blind antenna

The implementation, functional characteristics and advantages of the present application will be further described in conjunction with the embodiments and with reference to the drawings.

detailed description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relationship between the components in a certain posture (as shown in the drawings) With respect to the relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication changes accordingly.

In this application, unless otherwise clearly specified and limited, the terms "connected", "fixed", etc. should be understood in a broad sense, for example, "fixed" may be a fixed connection, a detachable connection, or integrated; may be The mechanical connection may also be an electrical connection; it may be directly connected or indirectly connected through an intermediary, and may be the connection between two elements or the interaction between the two elements, unless otherwise clearly defined. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined with "first" and "second" may include at least one of the features either explicitly or implicitly. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of those skilled in the art to realize. When the combination of technical solutions contradicts or cannot be realized, it should be considered that the combination of such technical solutions does not exist , Nor within the scope of protection required by this application.

An embodiment of the present application proposes an antenna, which is used to transmit signals and is suitable for a signal transmission device in a television. Of course, in other embodiments, the antenna can also be used in other devices according to specific requirements, such as a signal transmission device of a speaker, which is not limited in this application.

FIG. 1 is a schematic diagram of the front structure of the antenna in the embodiment of the present application. As shown in FIG. 1, the antenna includes a dielectric substrate 1 and a radiating sheet 2, and the radiating sheet 2 is installed on the surface of the dielectric substrate 1; There is a slot 21, which is used to increase the electromagnetic coupling of the antenna.

Further, the radiation sheet 2 can be printed directly on the surface of the dielectric substrate 1 to facilitate the processing of the antenna, and because the volume of the printed antenna is small, it is also convenient for the technical solution to be applied in a location with a small space. Of course, in this embodiment, the radiation sheet 2 may also be mounted on the surface of the dielectric substrate 1 by etching or pasting, which is not limited in this application.

Further, by providing a slot 21 in the radiating sheet 2 and feeding power through the slot 21, the electromagnetic coupling degree of the antenna can be improved, so that the signal transmission efficiency can be improved when the antenna performs signal transmission with an external device. Specifically, the external device may be some modules in the above-mentioned signal transmission apparatus, such as a signal transmission module, etc., or may be another antenna structure. In practical applications, the size of the slot 21 is much smaller than the size of the radiating plate 2, and the electromagnetic coupling degree of the antenna can be changed by changing the setting size of the slot 21. However, in this embodiment, as long as the electromagnetic coupling degree of the antenna can be improved to improve the signal transmission efficiency, the specific size of the slot 21 is not limited.

Further, the above antenna is also provided with a pin hole 22, and the pin hole 22 passes through the dielectric substrate 1 and the radiating sheet 2 (as shown in FIG. 2). The pin hole 22 is used to install a pin to increase the inductance of the antenna or Offset the capacitance of the antenna. Specifically, after the pin hole 22 is provided on the antenna and the pin is installed in the pin hole 22, the impedance of the antenna during signal transmission can be matched by the pin to increase the inductance of the antenna or cancel the capacitance of the antenna Therefore, the transmission efficiency of the antenna can be improved. The

Further, the dielectric substrate 1 has a rectangular structure. The rectangular structure is easy to cut and process, and also convenient for signal transmission. The surface of the dielectric substrate 1 facing away from the radiation plate 2 is a ground plane. In this embodiment, a thin metal layer is provided on the ground plane.

In the embodiment of the present application, the dielectric substrate 1 and the radiating sheet 2 are provided with a slit 21 on the radiating sheet 2 to improve the electromagnetic coupling degree of the antenna, and a pin hole 22 is provided on the antenna to install the pin In the pin hole 22, to increase the inductance of the antenna or offset the capacitance of the antenna. In this way, the opening 21 of the radiating sheet 2 is used to improve the electromagnetic coupling degree of the antenna, and the impedance matching of the antenna signal transmission is realized by the pin loading technology, thereby improving the signal transmission efficiency of the antenna.

Further, the antenna further includes a radio frequency line 3, the radio frequency line 3 is installed on the surface of the dielectric substrate 1 on the same side as the radiation plate 2, and one end of the radio frequency line 3 is connected to the signal port of the radiation plate 2, and the other Connect one end to an external device. Wherein, the external device may be some modules in the above-mentioned signal transmission device, such as: a signal transmission module, etc., or may be another antenna structure.

Further, the radio frequency line 3 can be directly printed on the surface of the dielectric substrate 1 to facilitate the processing of the antenna, and because the volume of the printed antenna is small, it is also convenient for the technical solution to be applied in a location with a small space. Of course, in this embodiment, the RF line 3 may also be mounted on the surface of the dielectric substrate 1 by etching or pasting, which is not limited in this application.

Specifically, the radio frequency line 3 is a microstrip radio frequency line. The microstrip radio frequency line has a small volume, which is convenient for manufacturing and assembly, and the radio frequency line 3 has the advantages of anti-electromagnetic interference and stable transmission signal, and does not Clutter will occur due to external interference.

In this embodiment, the antenna further includes a transmission medium 4 for transmitting signals. The radio frequency line 3 is connected to the signal port of the radiation sheet 2 through the transmission medium 4. The transmission medium 4 can improve the stability of the radio frequency line 3 during signal transmission. Optionally, the transmission medium 4 is a topology matching network.

Specifically, by setting the topology matching network, the impedance matching between the radiator 2 and the RF line 3 is realized, that is, the impedance of the signal port of the radiator 2 and the impedance of the RF line 3 are matched, thereby reducing signal reflection during the signal transmission process To improve the stability of signal transmission.

Further, the dielectric substrate 1 is a PCB board, and the radiation sheet 2, the radio frequency line 3, and the transmission medium 4 can be directly printed on the surface of the PCB board, which is convenient for the processing of the antenna. And because the volume of the printed antenna is small, it is also convenient for the technical solution to be applied in a small space. In other embodiments of the present application, the dielectric substrate 1 may also use other materials. Of course, in this embodiment, the radiation sheet 2 may also be mounted on the surface of the PCB board by etching or pasting, which is not limited in this application.

Specifically, the dielectric substrate 1 is an FR4 epoxy board, and the thickness of the dielectric substrate 1 ranges from 1 mm to 2 mm. More specifically, the above FR4 is a flammable material grade, and the FR4 epoxy board is a substrate in the circuit board, which is a board made of special electronic cloth impregnated with epoxy phenol resin and other materials after high temperature and high pressure hot pressing Shaped laminate. FR4 epoxy board has high mechanical properties and dielectric properties, as well as good insulation properties and heat resistance and moisture resistance.

Optionally, the thickness of the dielectric substrate 1 in this embodiment is 1.6 mm to ensure the hardness of the dielectric substrate 1 and prevent it from being broken during the assembly process. Of course, in other embodiments, the thickness of the dielectric substrate 1 can also be set to 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.7 mm, 1.8 mm, 1.9 mm, or 2.0 mm.

Further, the above antenna is a microstrip antenna. Since the microstrip antenna has the advantages of small size, light weight and simple manufacturing process, it can facilitate the manufacture of the antenna.

In this way, the opening 21 of the radiating sheet 2 is used to improve the electromagnetic coupling degree of the antenna, and the impedance matching of the antenna signal transmission is realized by the pin loading technology, thereby improving the signal transmission efficiency of the antenna.

Based on the above embodiment, the antenna can be used to make an air-fed antenna, that is, the two above-mentioned antennas can be spaced apart to realize the air-fed transmission of antenna signals between the two antennas; wherein, the air-fed transmission is transmitted by one of the antennas The signal forms a signal wave, which radiates to another antenna so that the antenna can receive the signal wave.

The air-fed antenna can be used for a signal transmission device. Referring to FIG. 3, an embodiment of the present application further provides a signal transmission device. As shown in FIG. 3, it is a schematic structural diagram of a signal transmission device according to an embodiment of the present application. The signal transmission device includes two antennas 5, a signal transmission module 6, and a blind antenna 7 in the foregoing embodiments; Set at intervals, one of the antennas is connected to the signal transmission module 6 and the other antenna is connected to the blind antenna 7. It can be understood that the signal transmission device includes all the structures of the antenna of the above embodiment and the technical effects brought about by it. For the specific structure of the antenna, please refer to the above embodiment, which will not be repeated in this embodiment.

Specifically, the two antennas 5 form an air-fed antenna, that is, the two antennas 5 are arranged at intervals, and the air-fed transmission of antenna signals between the two antennas 5 can be achieved. Air-fed transmission is where one of the antennas emits a signal and forms a signal wave, which radiates to the other antenna so that the antenna can receive the signal wave.

Optionally, the distance between the two antennas ranges from 1 mm to 10 mm. Used to limit the amount of signal transmission between the two antennas 5. When the gap between the two antennas 5 is too small, the amount of signal transmission between the two antennas 5 is too large, that is, the antenna 5 connected to the signal transmission module 6 emits There are too few signals, and the signal coverage near the antenna 5 cannot be achieved, resulting in problems such as stuck connections or poor communication, which affects the user's use.

When the gap between the two antennas 5 is too large, the amount of signal transmission of the two antennas 5 is too small, and the amount of signals received by the antenna 5 connected to the blind antenna 7 is also very small. The amount of signal is small, so there are few signals from the blind antenna 7 and the signal coverage near the blind antenna 7 cannot be achieved, resulting in problems such as stuck connections or poor communication, which affects the user's use.

Optionally, in this technical solution, the distance between the two antennas 5 ranges from 1 mm to 10 mm. In application, the distance may be 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, or 10 mm.

In this embodiment, by selecting the two antennas 5 in the above embodiment and setting the two antennas 5 at intervals, in the signal transmission process of the signal transmission device, while improving the signal transmission efficiency, the signal can also be realized Fill the blind, so that the signal can be omnidirectional coverage or directional projection.

Based on the above embodiment, referring to FIGS. 1-3, the present application further proposes a television set including the above-mentioned signal transmission device. It can be understood that the television set includes all the structures of the signal transmission device of the above embodiment and the technical effects brought about by it. For the specific structure of the signal transmission device, please refer to the above embodiment, which will not be repeated in this embodiment.

Specifically, the TV set is provided with a rear case, and the signal transmission device is provided on the rear case. Since the front end of the TV set is provided with a display device and the gap space is very small, the signal transmission device is provided in the rear case. In other embodiments of the present application, the television is provided with an accommodating space, and the signal transmission device is provided in the accommodating space, so as to achieve full coverage of the signal and facilitate the user's use.

In this embodiment, by selecting the signal transmission device in the above embodiment, and setting the two antennas in the signal transmission device at intervals, in the signal transmission process of the television, while improving the signal transmission efficiency, it can also be achieved The blinding of the signal makes the signal omnidirectional coverage or directional projection.

The above is only an optional embodiment of the present application, and therefore does not limit the scope of the patent of the present application. Any equivalent structural changes made by the description and drawings of the present application or direct / indirect use under the concept of the present application All other related technical fields are included in the patent protection scope of this application.

Claims

An antenna, wherein the antenna includes a dielectric substrate and a radiation sheet, the radiation sheet is mounted on a surface of the dielectric substrate;

Wherein, a gap is provided on the radiation sheet, and the gap is used to improve the electromagnetic coupling degree of the antenna;

The antenna is also provided with a pin hole, and the pin hole passes through the dielectric substrate and the radiating sheet, and the pin hole is used to install a pin to increase the inductance of the antenna or offset the antenna Capacitive.
The antenna according to claim 1, wherein the antenna further comprises a radio frequency line, the radio frequency line is installed on a surface of the dielectric substrate on the same side as the radiation sheet, and one end of the radio frequency line is The signal port of the radiation sheet is connected, and the other end of the radio frequency line is connected to an external device.
The antenna according to claim 2, wherein the antenna further comprises a transmission medium for transmitting signals, and the radio frequency line is connected to the signal port of the radiation sheet through the transmission medium.
The antenna according to claim 3, wherein the transmission medium is a topology matching network.
The antenna according to claim 3, wherein the radio frequency line is a microstrip radio frequency line.
The antenna of claim 1, wherein the size of the slot is smaller than the size of the radiating plate.
The antenna according to claim 1, wherein the dielectric substrate has a rectangular structure.
The antenna according to claim 1 or 2, wherein the dielectric substrate is a PCB board.
The antenna according to claim 8, wherein the dielectric substrate is an FR4 epoxy board.
The antenna according to claim 9, wherein the thickness of the dielectric substrate ranges from 1 mm to 2 mm.
The antenna according to claim 1, wherein a side of the dielectric substrate facing away from the radiation sheet is a ground plane, and a thin metal layer is provided on the ground plane.
The antenna of claim 1, wherein the antenna is a microstrip antenna.
A signal transmission device, wherein the signal transmission device includes two antennas, and the signal transmission device further includes a signal transmission module and a blind antenna;

Wherein, the two antennas are arranged at intervals, one of the antennas is connected to the signal transmission module, and the other of the antennas is connected to the blind antenna; the antenna includes a dielectric substrate and a radiating sheet, and the radiating sheet Installed on the surface of the dielectric substrate; the radiating sheet is provided with a gap, the gap is used to improve the electromagnetic coupling of the antenna; the antenna is also provided with a pin hole, and the pin hole passes through the In the dielectric substrate and the radiating sheet, the pin holes are used to install pins to increase the inductance of the antenna or offset the capacitance of the antenna.
The signal transmission device according to claim 13, wherein the distance between the two antennas ranges from 1 mm to 10 mm.
A television set, wherein the television set includes a signal transmission device, the signal transmission device includes two antennas, and the signal transmission device further includes a signal transmission module and a blind antenna; the two antennas are spaced apart, wherein One of the antennas is connected to the signal transmission module, and the other of the antennas is connected to the blind antenna; the antenna includes a dielectric substrate and a radiating sheet, the radiating sheet is installed on the surface of the dielectric substrate; The radiating sheet is provided with a slot, which is used to improve the electromagnetic coupling degree of the antenna; the antenna is also provided with a pin hole, and the pin hole passes through the dielectric substrate and the radiating sheet, the The pin holes are used to install pins to increase the inductance of the antenna or offset the capacitance of the antenna;

Wherein, the television is provided with a rear case, and the signal transmission device is provided on the rear case; or, the television is provided with an accommodation space, and the signal transmission device is provided on the accommodation space. The