A device and antenna thereof

Abstract

The present invention discloses a device and an antenna thereof, wherein the device comprises a touch button and a processing module, wherein the touch button comprises a touch sensing layer and a touch sensing signal transmission unit, and the antenna comprises a radiation unit and a radio frequency signal transmission unit, wherein the radiation unit and the touch sensing layer are multiplexed, and the radio frequency signal transmission unit and the touch sensing signal transmission unit are multiplexed. It can be seen that the radiation unit and the radio frequency signal transmission unit in the present application can realize both the function of the antenna and the function of touch sensing, and there is no need to set an additional antenna in the device on the basis of the existence of the touch button in the device, which reduces the size of the device and facilitates the layout of the antenna in the device.

Description

Technical Field

[0001] The present invention relates to the technical field of wireless communication equipment, and in particular to a device and an antenna thereof. Background Art

[0002] Some devices, such as VR (Virtual Reality) devices, are usually equipped with antennas, and the antennas are usually made of FPC (Flexible Printed Circuit). The antennas are pasted on the inner shell surface of the device, but the FPC antennas are large in size, and it is not easy to find a good radiation position in the cramped space of the VR device, and it is not convenient to layout in the VR device. Summary of the invention

[0003] The object of the present invention is to provide a device and an antenna thereof, which can realize both the function of an antenna and the function of touch sensing. It is no longer necessary to additionally set an antenna in the device on the basis of the touch buttons on the device, thereby reducing the size of the device and facilitating the layout of the antenna in the device.

[0004] In order to solve the above technical problems, the present invention provides an antenna of a device, wherein the device includes a touch button and a processing module, the touch button includes a touch sensing layer and a touch sensing signal transmission unit, the antenna includes a radiating unit constituting the touch sensing layer and a radio frequency signal transmission unit constituting the touch sensing signal transmission unit, the radio frequency signal transmission unit is respectively connected to the radiating unit and the processing module, and is used to transmit radio frequency signals and / or touch sensing signals between the radiating unit and the processing module.

[0005] Preferably, the radiation portion is a first metal layer.

[0006] Preferably, a gap is provided on the first metal layer for adjusting the frequency of the antenna.

[0007] Preferably, the radiating portion further includes a protruding portion connected to the first metal layer, for adjusting the frequency of the antenna.

[0008] Preferably, it also includes:

[0009] The second extension part and the third extension part respectively located at two ends of the radiation part are used for adjusting the frequency of the antenna and preventing ESD.

[0010] Preferably, the first metal layer is a metal plating layer.

[0011] Preferably, it also includes:

[0012] A touch sensing signal filtering module disposed between the radio frequency signal transmission unit and the touch sensing end of the processing module, used for filtering out the touch sensing signal in the transmission signal output by the radio frequency signal transmission unit;

[0013] The RF signal filtering module is arranged between the touch sensing signal transmission unit and the RF end of the processing module, and is used to filter out the RF signal in the transmission signal output by the RF signal transmission unit; the transmission signal includes the touch sensing signal and / or the RF signal.

[0014] Preferably, the radio frequency signal transmission unit includes a second metal layer adhered to the inner surface of the shell of the device and an elastic foot connected to the second metal layer, and the elastic foot is connected to the processing module.

[0015] In order to solve the above technical problem, the present invention further provides a device, including a processing module and a touch button, and also includes an antenna of the device as described above.

[0016] Preferably, the housing of the device is an insulating housing.

[0017] The present invention provides a device and an antenna thereof, the device comprising a touch button and a processing module, the touch button comprising a touch sensing layer and a touch sensing signal transmission unit, the antenna comprising a radiation unit and a radio frequency signal transmission unit, wherein the radiation unit and the touch sensing layer are multiplexed, and the radio frequency signal transmission unit and the touch sensing signal transmission unit are multiplexed. It can be seen that the radiation unit and the radio frequency signal transmission unit in the present application can realize both the function of the antenna and the function of touch sensing, and there is no need to set an additional antenna in the device on the basis of the existence of the touch button in the device, which reduces the size of the device and facilitates the layout of the antenna in the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the prior art and the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 A schematic diagram of the structure of an antenna of a device provided by the present invention;

[0020] Figure 2 The present invention provides a Figure 1 A schematic diagram showing the antenna being installed in a device;

[0021] Figure 3 The present invention provides Figure 1 Schematic diagram of the standing wave bandwidth of the antenna shown;

[0022] Figure 4 The present invention provides Figure 1 A schematic diagram of the XY gain direction of the antenna shown;

[0023] Figure 5 The present invention provides Figure 1 Schematic diagram of the XZ gain direction of the antenna shown;

[0024] Figure 6 The present invention provides Figure 1 Schematic diagram of the YZ gain direction of the antenna shown. DETAILED DESCRIPTION

[0025] The core of the present invention is to provide a device and its antenna, which can realize both the function of an antenna and the function of touch sensing. There is no need to set an additional antenna in the device based on the presence of touch buttons on the device, which reduces the size of the device and facilitates the layout of the antenna in the device.

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Please refer to Figure 1 and Figure 2 ,in, Figure 1 A schematic diagram of the structure of an antenna of a device provided by the present invention, Figure 2 The present invention provides a Figure 1 Schematic diagram showing the antenna installed in the device.

[0028] The device includes a touch button and a processing module. The touch button includes a touch sensing layer and a touch sensing signal transmission part. The antenna includes a radiating part 1 constituting the touch sensing layer and a radio frequency signal transmission part 2 constituting the touch sensing signal transmission part. The radio frequency signal transmission part 2 is respectively connected to the radiating part 1 and the processing module, and is used to transmit radio frequency signals and / or touch sensing signals between the radiating part 1 and the processing module.

[0029] In order to realize the miniaturization of the antenna and facilitate the layout in the device, the present application takes into account that the device is usually provided with a touch button, which usually includes a touch sensing layer and a touch sensing signal transmission part. When the user presses the touch sensing layer, the touch sensing layer can sense and generate a touch signal, and the touch signal is sent to the processing module through the touch sensing signal transmission part, so that the processing module performs corresponding operations based on the touch signal. Further, the present application takes into account that the touch sensing layer and the touch sensing signal transmission part are usually conductors, and that the radiation part 1 and the radio frequency signal transmission part 2 in the antenna are usually conductors. Based on this, the present application reuses the touch button and the antenna. Specifically, the antenna includes a radiation part 1 and a radio frequency signal transmission part 2, the radiation part 1 is multiplexed with the touch sensing layer, the radio frequency signal transmission part 2 is multiplexed with the touch sensing signal transmission part, and the radiation part 1 transmits the radio frequency signal between the processing module through the radio frequency signal transmission part 2. Compared with the prior art in which an independent area is divided for the touch button area and the antenna area for separate settings, the space occupied by the device is small.

[0030] In addition, the antenna in the present application may have Bluetooth function and WiFi function. The radiating part 1 may be a circular radiating part. On the one hand, it is similar to the shape of the user's finger, which meets the touch requirements of the touch button. On the other hand, it also meets the area requirements of the radiating part 1 of the antenna. Of course, the radiating part 1 here can also be other shapes, such as square, rectangular and elliptical, etc., which are specifically set according to actual conditions. In summary, the antenna of a device provided by the present invention is a miniaturized antenna that integrates antenna function and touch function. The radiating part 1 and the touch sensing layer are multiplexed, and the radio frequency signal transmission part 2 and the touch sensing signal transmission part are multiplexed. It can be seen that the radiating part 1 and the radio frequency signal transmission part 2 in the present application can realize both the function of the antenna and the function of touch sensing. There is no need to set an additional antenna in the device on the basis of the presence of touch buttons in the device, which reduces the size of the device and facilitates the layout of the antenna in the device.

[0031] Based on the above embodiments:

[0032] As a preferred embodiment, the radiation portion 1 is a first metal layer.

[0033] Specifically, the first metal layer here can be gold, silver, nickel or other metals, and the first metal layer can be arranged in contact with the inner surface of the housing 7 of the device, which can meet the touch requirements of the touch buttons and the radio frequency requirements of the antenna.

[0034] As a preferred embodiment, a slot 3 is provided on the first metal layer for adjusting the frequency of the antenna.

[0035] Specifically, the antenna can be in the form of a PIFA structure, and a slot 3 is provided on the first metal layer to reduce the electrical length of the antenna, fully utilize the space of the touch button, and play a role in miniaturization. It can also be used to adjust the frequency offset of the antenna during the research and development stage. When the frequency of the antenna is low, the length of the antenna is increased by increasing the depth of the slot 3, so that the frequency of the antenna is adjusted to a high frequency. It can be seen that the setting of the slot 3 increases the adjustment range of the antenna frequency.

[0036] As a preferred embodiment, the radiating portion 1 further includes a first protruding portion 4 connected to the first metal layer, which is used to adjust the frequency of the antenna.

[0037] In the present application, the radiation part 1 is also provided with a first extension part 4 connected to the first metal layer, and the first extension part 4 also participates in the antenna radiation and plays a role in frequency adjustment like the slot 3. When the antenna frequency is high frequency, the length of the antenna is reduced by cutting the extension part, so that the frequency of the antenna is adjusted to a low frequency. It can be seen that the provision of the first extension part 4 increases the frequency adjustment range of the antenna.

[0038] As a preferred embodiment, it also includes:

[0039] The second extending portion 5 and the third extending portion 6 respectively located at two ends of the radiating portion 1 are used for adjusting the frequency of the antenna and preventing ESD.

[0040] Specifically, the present application further provides a second extension portion 5 and a third extension portion 6 at both ends of the radiating portion 1. On the one hand, the second extension portion 5 and the third extension portion 6 can also adjust the frequency of the antenna by changing the length of the antenna. On the other hand, they can also prevent ESD (Electro-Static discharge), thereby improving the working safety and reliability of the antenna.

[0041] As a preferred embodiment, the first metal layer is a metal plating layer.

[0042] Specifically, the first metal layer can be a metal plating layer, such as a gold plating layer, a silver plating layer, a nickel plating layer, etc., which can meet the requirements of both the touch button and the antenna. In addition, the first metal layer can be attached to the inner surface of the housing 7 of the device, further reducing the space occupied by the antenna.

[0043] As a preferred embodiment, it also includes:

[0044] A touch sensing signal filtering module disposed between the RF signal transmission unit 2 and the touch sensing end of the processing module, for filtering out the touch sensing signal in the transmission signal output by the RF signal transmission unit 2;

[0045] The RF signal filtering module is arranged between the touch sensing signal transmission unit and the RF end of the processing module, and is used to filter out the RF signal in the transmission signal output by the RF signal transmission unit 2; the transmission signal includes the touch sensing signal and / or the RF signal.

[0046] Specifically, two coupling feeding parts of the RF signal transmission part 2 are connected to the processing module, one of the coupling feeding parts is connected to the touch sensing end of the processing module, and the other coupling feeding part is connected to the RF end of the processing module.

[0047] Taking into account that the transmission signal transmitted by the RF signal transmission unit 2 may contain both RF signals and touch sensing signals, in order to avoid interference of the processing module by the touch sensing signal when processing the RF signal, and interference of the RF signal when processing the touch sensing signal, in the present application, the antenna also includes a touch sensing signal filtering module and a RF signal filtering module, wherein the touch sensing signal filtering module is used to filter out the touch sensing signal in the transmission signal output by the RF signal transmission unit 2, and the RF signal filtering module is used to filter out the RF signal in the touch sensing signal.

[0048] Furthermore, considering that the radio frequency signal is a high-frequency signal and the touch sensing signal is usually a DC or low-frequency signal, in the present application, the touch sensing signal filtering module may be, but is not limited to, a capacitor, so as to pass the high-frequency radio frequency signal and block the DC or low-frequency touch signal, and the radio frequency signal filtering module may be, but is not limited to, an inductor, so as to pass the DC or low-frequency touch signal and block the high-frequency radio frequency signal.

[0049] In practical applications, the touch sensing signal filtering module and the radio frequency signal filtering module may be arranged on a main board where the processing module is located, and this application does not make any special limitation thereto.

[0050] As a preferred embodiment, the radio frequency signal transmission unit 2 includes a second metal layer attached to the inner surface of the housing 7 of the device and an elastic foot connected to the second metal layer, and the elastic foot is connected to the processing module.

[0051] Specifically, considering that the existing antenna and processing module are usually connected through a coaxial cable, a fixing clip is set inside the device to fix the coaxial cable. Since the coaxial cable is usually connected to the processing module through a RF connector, the fixing clip and the coaxial cable increase the size of the antenna. The setting of the RF connector increases the loss on the one hand, and increases the failure risk node on the other hand.

[0052] In order to solve the above technical problems, in the present application, the RF signal transmission part 2 includes a second metal layer and an elastic foot connected to the second metal layer. The second metal layer is adhered to the inner surface of the shell 7 of the device, one end of the elastic foot is connected to the second metal layer, and the other end is connected to the processing module. It can be seen that the second metal layer in the present application is adhered to the inner surface of the shell 7 of the device without the need to set a fixing clip, thereby reducing the size of the antenna. The second metal layer is connected to the processing module through the elastic foot. On the one hand, the connection is more stable, and on the other hand, the loss is reduced.

[0053] It should be noted that the second metal layer here can be a metal plating layer, such as a gold plating layer, a silver plating layer, a nickel plating layer, etc., which can meet the requirements of both touch buttons and antennas.

[0054] Please refer to Figure 3-Figure 6 , Figure 3 The present invention provides Figure 1 Schematic diagram of the standing wave bandwidth of the antenna shown, Figure 4 The present invention provides Figure 1 Schematic diagram of the XY gain direction of the antenna shown, Figure 5 The present invention provides Figure 1 Schematic diagram of the XZ gain direction of the antenna shown, Figure 6 The present invention provides Figure 1 The YZ gain direction diagram of the antenna is shown. It can be seen that the antenna provided by the present application has good standing wave bandwidth and gain diagram characteristics, and has good performance for transceiver systems such as VR head-mounted devices that use Bluetooth and WiFi.

[0055] The present invention also provides a device, including a processing module and a touch button, and also includes an antenna of the device as described above.

[0056] In the present application, the device may be a VR (Virtual Reality) device, or a watch, a bracelet, etc., and the present application does not make any special limitation here.

[0057] As a preferred embodiment, the housing 7 of the device is an insulating housing.

[0058] In the present application, the housing 7 of the device is an insulating housing, and the insulating housing is used as an antenna substrate and is made of a plate material with a small dielectric constant, such as polytetrafluoroethylene and other plastics.

[0059] It should be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0060] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An antenna of a device, the device comprising a touch button and a processing module, the touch button comprising a touch sensing layer and a touch sensing signal transmission unit, characterized in that: The antenna comprises a radiation part constituting the touch sensing layer and a radio frequency signal transmission part constituting the touch sensing signal transmission part, wherein the radio frequency signal transmission part is respectively connected to the radiation part and the processing module, and is used for transmitting radio frequency signals and / or touch sensing signals between the radiation part and the processing module; The radio frequency signal transmission unit includes a second metal layer attached to the inner surface of the housing of the device and an elastic foot connected to the second metal layer, and the elastic foot is connected to the processing module; The radiation portion is a first metal layer; The first metal layer is provided with a gap for adjusting the frequency of the antenna; The radiation portion further includes a first extension portion connected to the first metal layer and configured to adjust the frequency of the antenna; The radiation portion is a circular radiation portion; The process of adjusting the frequency of the antenna includes: Increasing the depth of the slot to increase the length of the antenna so that the frequency of the antenna is adjusted toward a high frequency; The first protruding portion is cut to reduce the length of the antenna so that the frequency of the antenna is adjusted to a lower frequency.

2. The antenna of the device according to claim 1, characterized in that The first metal layer is a metal plating layer.

3. The antenna of the device according to claim 1, characterized in that Also includes: The second extension part and the third extension part respectively located at two ends of the radiation part are used for adjusting the frequency of the antenna and preventing ESD.

4. The antenna of the device according to claim 1, characterized in that Also includes: A touch sensing signal filtering module disposed between the RF signal transmission unit and the RF end of the processing module, used for filtering out the touch sensing signal in the transmission signal output by the RF signal transmission unit; The radio frequency signal filtering module is arranged between the touch sensing signal transmission unit and the touch sensing end of the processing module, and is used to filter out the radio frequency signal in the transmission signal output by the touch sensing signal transmission unit; the transmission signal includes the touch sensing signal and / or the radio frequency signal.

5. A wireless communication device, comprising a processing module and a touch button, characterized in that: Also included is an antenna for the device as claimed in any one of claims 1 to 4.

6. The wireless communication device according to claim 5, characterized in that: The housing of the wireless communication device is an insulating housing.

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