Electronic system capable of supporting same-frequency-band double-antenna communication

Abstract

An electronic system supporting same-frequency-band double-antenna communication comprises two antenna devices and a control unit. Each antenna device comprises a wireless communication module, an antenna module and a switch module. The control unit controls the on and off of the switch module of the antenna device, and comprises a signal generation module and a logic gate module which is connected with the signal generation module and the switch module. The logic gate module is provided with a first end connected with one switch module and a second end connected with the other switch module. The signal generation module continuously and sequentially sends a first control signal and a second control signal to the logic gate module within a frequency, and the logic gate module simultaneously transmits the first control signal and the second control signal which are different from each other to the corresponding switch module at the first end and the second end. One of the switch modules is electrically connected with the wireless communication module and the antenna module, and the other switch module disconnects the wireless communication module and the antenna module.

Description

Technical Field

[0001] The invention relates to an electronic device, and in particular to an electronic system capable of supporting dual-antenna communication in the same frequency band. Background Art

[0002] With the rapid development of wireless communications, it is now common to use antennas in electronic devices to perform wireless communication transmission functions and meet various convenient usage requirements. In recent years, the need to use two wireless communication antennas built into electronic devices has been seen everywhere. A common design is that the wireless communication antenna supports two different frequency bands, so they will not interfere with each other during the wireless communication transmission process. However, if the two wireless communication antennas built into the electronic device are required to be used in the same frequency band, since the operating frequencies of the wireless communication antennas are the same, the wireless communication transmission process will interfere with each other, and even data transmission errors may occur. Therefore, how to achieve a design in which the wireless communication antennas of the same frequency band in the electronic device do not interfere with each other during operation is worthy of further careful study and discussion by practitioners for improvement. Summary of the invention

[0003] Therefore, an object of the present invention is to provide an electronic system with good practicality that can support dual-antenna communications in the same frequency band.

[0004] Therefore, the present invention can support an electronic system with dual antennas communicating in the same frequency band, comprising a housing, a motherboard disposed in the housing, a processing unit disposed on the motherboard, two antenna devices disposed in the housing, and a control unit disposed on the motherboard and connected to the processing unit and the antenna devices.

[0005] Each antenna device includes a wireless communication module disposed on the mainboard and connected to the processing unit, an antenna module disposed on the housing, and a switch module disposed on the mainboard and controlled to open and close the electrical connection between the wireless communication module and the antenna module. When the switch module of each antenna device receives a first control signal, each switch module will open the electrical connection between the wireless communication module and the antenna module, and enable the wireless communication module to receive and send signals through the antenna module; when the switch module of each antenna device receives a second control signal, each switch module will disconnect the connection between the wireless communication module and the antenna module, and enable the wireless communication module to not receive and send signals through the antenna module.

[0006] The control unit can control the opening and closing of the switch module of the antenna device, and includes a signal generating module connected to the processing unit, and a logic gate module connected to the signal generating module and the switch module. The logic gate module has a first end connected to the switch module of one of the antenna devices, and a second end connected to the switch module of the other antenna device. The processing unit enables the signal generating module to start and enables the signal generating module to continuously and sequentially send the first control signal and the second control signal to the logic gate module within a frequency. When the logic gate module receives the first control signal, the first end of the logic gate module transmits the first control signal to the corresponding switch module and the second end transmits the second control signal to the corresponding switch module; when the logic gate module receives the second control signal, the first end of the logic gate module transmits the second control signal to the corresponding switch module and the second end transmits the first control signal to the corresponding switch module.

[0007] Compared with the prior art, the present invention can support an electronic system with dual antennas communicating in the same frequency band, by means of a design in which the signal generating module of the control unit continuously and sequentially sends the first control signal and the second control signal to the logic gate module within the frequency, and in conjunction with the logic gate module, simultaneously transmits the first control signal and the second control signal, which are different from each other, to the corresponding switch module at the first end and the second end respectively, so that the switch module of one antenna device electrically connects the wireless communication module and the antenna module and the switch module of another antenna device disconnects the wireless communication module from the antenna module, thereby effectively achieving the goal that the antenna devices in the same frequency band do not interfere with each other when sending and receiving signals, and having good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Other features and effects of the present invention will be clearly presented in the embodiments with reference to the accompanying drawings, in which:

[0009] Figure 1 is a schematic diagram illustrating an embodiment of an electronic system of the present invention that can support dual-antenna communications in the same frequency band; and

[0010] Figure 2 It is a three-dimensional schematic diagram. In this embodiment, antenna modules of two antenna devices are arranged in a housing. DETAILED DESCRIPTION

[0011] Before the present invention is described in detail, it should be noted that similar elements are denoted by the same reference numerals in the following description.

[0012] See also Figure 1 and Figure 2The present invention can support an electronic system with dual antennas in the same frequency band, comprising a housing 1, a mainboard 2 disposed in the housing 1, a processing unit 3 disposed on the mainboard 2, two antenna devices 4 disposed in the housing 1, and a control unit 5 disposed on the mainboard 2 and connected to the processing unit 3 and the antenna device 4.

[0013] Each antenna device 4 includes a wireless communication module 41 disposed on the mainboard 2 and connected to the processing unit 3, an antenna module 42 disposed on the housing 1, and a switch module 43 disposed on the mainboard 2 and controlled to open and close the electrical connection between the wireless communication module 41 and the antenna module 42. When the switch module 43 of each antenna device 4 receives a first control signal, each switch module 43 will open the electrical connection between the wireless communication module 41 and the antenna module 42, and allow the wireless communication module 41 to receive and send signals through the antenna module 42; when the switch module 43 of each antenna device 4 receives a second control signal, each switch module 43 will disconnect the connection between the wireless communication module 41 and the antenna module 42, and prevent the wireless communication module 41 from receiving and sending signals through the antenna module 42.

[0014] The control unit 5 can control the switch module 43 of the antenna device 4 to open or close, and includes a signal generating module 51 connected to the processing unit 3, and a logic gate module 52 connected to the signal generating module 51 and connected to the switch module 43. The logic gate module 52 has a first end 53 connected to the switch module 43 of one antenna device 4, and a second end 54 connected to the switch module 43 of another antenna device 4. The processing unit 3 activates the signal generating module 51 and causes the signal generating module 51 to continuously and sequentially send the first control signal and the second control signal to the logic gate module 52 within a frequency. When the logic gate module 52 receives the first control signal, the first end 53 of the logic gate module 52 transmits the first control signal to the corresponding switch module 43 and the second end 54 transmits the second control signal to the corresponding switch module 43; when the logic gate module 52 receives the second control signal, the first end 53 of the logic gate module 52 transmits the second control signal to the corresponding switch module 43 and the second end 54 transmits the first control signal to the corresponding switch module 43.

[0015] When in use, the processing unit 3 controls the signal generating module 51 to start, and after the signal generating module 51 is started, it will continuously and sequentially send the first control signal and the second control signal to the logic gate module 52 in each frequency. In this embodiment, the first control signal sent by the signal generating module 51 of the control unit 5 is a high level signal, and the second control signal is a low level signal, but it is not limited to this. In detail, the signal generated by the signal generating module 51 will continuously and sequentially send the first control signal (high level signal) and the second control signal (low level signal) to the logic gate module 52 in each frequency. For example, first, the logic gate module 52 will receive the first control signal (high-level signal), and the logic gate module 52 will transmit the first control signal (high-level signal) to the corresponding switch module 43 through the first end 53, so that the corresponding switch module 43 will open the electrical connection between the wireless communication module 41 and the antenna module 42, and at the same time transmit the second control signal (low-level signal) to the corresponding switch module 43 through the second end 54, so that the corresponding switch module 43 will disconnect the connection between the wireless communication module 41 and the antenna module 42. At this time, one of the wireless communication modules 41 can send and receive signals with the antenna module 42 electrically connected to it, while the other wireless communication module 41 will not send or receive signals because the corresponding switch module 43 is disconnected from the antenna module 42. Next, the logic gate module 52 will receive the second control signal (low-level signal) only after receiving the first control signal (high-level signal). When the logic gate module 52 receives the second control signal, the logic gate module 52 transmits the second control signal (low-level signal) to the corresponding switch module 43 through the first end 53, so that the corresponding switch module 43 disconnects the connection between the wireless communication module 41 and the antenna module 42, and at the same time transmits the first control signal (high-level signal) to the corresponding switch module 43 through the second end 54, so that the corresponding switch module 43 opens and electrically connects the wireless communication module 41 and the antenna module 42. At this time, the wireless communication module 41 that originally could receive and send signals will switch to not receiving and sending signals because the corresponding switch module 43 disconnects the antenna module 42, and the other wireless communication module 41 that originally would not receive and send signals will receive and send signals because the corresponding switch module 43 is electrically connected to the antenna module 42. In simple terms, at the same time, only one of the switch modules 43 of the antenna devices 4 will electrically connect the corresponding wireless communication module 41 with the corresponding antenna module 42 so that the corresponding antenna device 4 can receive and send signals, while the switch module 43 of the other antenna device 4 will disconnect the connection between the corresponding wireless communication module 41 and the corresponding antenna module 42 so that the corresponding antenna device will not receive and send signals. The antenna devices 4 will not interfere with each other when transmitting and receiving signals.Further, in this embodiment, when the signal generating module 51 of the control unit 5 is activated, a square wave signal is output, and the square wave signal continuously and sequentially sends the high level signal and the low level signal to the logic gate module 52 in each frequency. That is, the signal generated by the signal generating module 51 is in the form of a square wave signal, so the square wave signal generated by the signal generating module 51 continuously and sequentially sends the first control signal (high level signal) and the second control signal (low level signal) to the logic gate module 52 in each frequency, and since the square wave signal generated by the signal generating module 51 is continuously sent to the logic gate module 52, each switch module 43 is continuously switched to electrically connect the corresponding wireless communication module 41 with the corresponding antenna module 42 or switch to disconnect the connection state of the corresponding wireless communication module 41 and the corresponding antenna module 42, but the present invention is not limited thereto. In this embodiment, the frequency is 1kHz. In simple terms, the frequency of the square wave signal generated by the signal generating module 51 of the control unit 5 is 1kHz, so the first control signal (high level signal) and the second control signal (low level signal) are continuously and rapidly sent to the logic gate module 52, so that each switch module 43 is continuously and rapidly switched to electrically connect the corresponding wireless communication module 41 and the corresponding antenna module 42 or switch to disconnect the connection state of the corresponding wireless communication module 41 and the corresponding antenna module 42. Due to the fast switching design, each antenna device 4 will hardly cause self- The switching modules 43 of the antenna device 4 are in different switching states, so that the antenna devices 4 do not interfere with each other when transmitting and receiving signals, but this is not limited to this. The frequency can also be 10kHz or other frequencies, as long as each switch module 43 can be quickly switched to electrically connect the corresponding wireless communication module 41 and the corresponding antenna module 42 or disconnect the corresponding wireless communication module 41 and the corresponding antenna module 42, and the fast switching design is used to ensure that each antenna device 4 does not affect its own signal transmission. Incidentally, in this embodiment, the antenna device 4 supports Bluetooth wireless signal communication transmission, and the wireless communication module 41 is a Bluetooth wireless communication module, but this is not limited to this.

[0016] It should be particularly noted that, in this embodiment, the logic gate module 52 of the control unit 5 further has an inverter 55, and the inverter 55 has an input terminal 551 connected to the first terminal 53, and an output terminal 552 connected to the second terminal 54. In simple terms, the switch module 43 of one antenna device 4 is connected to an inverter 55, and the design of the inverter 55 of the logic gate module 52 is utilized, and the logic gate module 52 transmits the first control signal (high level signal) through the first terminal 53 and transmits it to the corresponding switch module 43 and the input terminal 551 of the inverter 55 synchronously. That is to say, when the first terminal 53 of the logic gate module 52 receives the first control signal (high level signal), the corresponding switch module 43 is turned on to electrically connect the wireless communication module 41 and the antenna module 42, and because the first control signal (high level signal) is turned on, the first terminal 53 of the logic gate module 52 is turned on to electrically connect the wireless communication module 41 and the antenna module 42. The first control signal (high level signal) is synchronously transmitted from the first end 53 to the input end 551 of the inverter 55, and is processed by the inverter 55 and outputs the second control signal (low level signal) from the output end 552 of the inverter 55 to the second end 54, so that the second control signal (low level signal) is transmitted to the corresponding switch module 43 through the second end 54, so that the corresponding switch module 43 disconnects the connection between the wireless communication module 41 and the antenna module 42; relatively speaking, when the logic gate module 52 transmits the second control signal (low level signal) through the first end 53, the second control signal (low level signal) is transmitted to the corresponding switch module 43 through the second end 54. In other words, when the first end 53 of the logic gate module 52 receives the second control signal (low-level signal), the corresponding switch module 43 disconnects the connection between the wireless communication module 41 and the antenna module 42. Since the first end 53 synchronously transmits the second control signal (low-level signal) to the input end 551 of the inverter 55, the inverter 55 processes the second control signal and outputs the first control signal (high-level signal) from the output end 552 of the inverter 55 to the second end. 54, and the first control signal (high-level signal) is transmitted to the corresponding switch module 43 through the second end 54, so that the corresponding switch module 43 is turned on to electrically connect the wireless communication module 41 and the antenna module 42, effectively achieving that the first end 53 and the second end 54 are different level signals from each other, and ensuring that one of the wireless communication modules 41 of the antenna device 4 will receive and send signals with the antenna module 42 electrically connected to it, while the other wireless communication module 41 will not receive and send signals because the corresponding switch module 43 is disconnected from the antenna module 42.

[0017] By means of the design that the signal generating module 51 of the control unit 5 continuously and sequentially sends the first control signal and the second control signal to the logic gate module 52 within the frequency, and the logic gate module 52 simultaneously transmits the first control signal and the second control signal which are different from each other to the corresponding switch module 43 at the first end 53 and the second end 54 respectively, the switch module 43 of one antenna device 4 is electrically connected to the wireless communication module 41 and the antenna module 42, and the switch module 43 of another antenna device 4 is disconnected from the wireless communication module 41 and the antenna module 42, so that the antenna devices 4 in the same frequency band can effectively transmit and receive signals without interfering with each other, and the practicality is good.

[0018] Here, it should be explained that, in this embodiment, each switch module 43 of the antenna device 4 has a switching pin 431. When the switching pin 431 of each switch module 43 receives the first control signal, each switch module 43 will switch to open the electrical connection between the wireless communication module 41 and the antenna module 42, and enable the wireless communication module 41 to receive and send signals through the antenna module 42; when the switching pin 431 of each switch module 43 receives the second control signal, each switch module 43 will switch to disconnect the connection between the wireless communication module 41 and the antenna module 42, and enable the wireless communication module 41 to not receive and send signals through the antenna module 42. The switching pin 431 of one switch module 43 is connected to the first end 53 of the logic gate module 52 of the control unit 5, and the switching pin 431 of the other switch module 43 is connected to the second end 54 of the logic gate module 52 of the control unit 5. In short, the switch module 43 receives the control signal transmitted from the first end 53 or the control signal transmitted from the second end 54 through its own switch pin 431 as shown in the figure, but the present invention is not limited thereto.

[0019] In this embodiment, the switch module 43 of each antenna device 4 also has a RF switch 432 connected to the switch pin 431. Each RF switch 432 has a connection switch (Switch) that can switchably disconnect the wireless communication module 41 and the antenna module 42, but is not limited to this. When each RF switch 432 receives the first control signal from the switch pin 431, each RF switch 432 will switch to connect the wireless communication module 41 and the antenna module 42; when each RF switch 432 receives the second control signal from the switch pin 431, each RF switch 432 will switch to disconnect the wireless communication module 41 and the antenna module 42. That is, the RF switch 432 of each switch module 43 switches to connect the wireless communication module 41 and the antenna module 42 according to the first control signal received by the corresponding switch pin 431, or each RF switch 432 switches to disconnect the connection between the wireless communication module 41 and the antenna module 42 according to the second control signal received by the corresponding switch pin 431, but the present invention is not limited thereto.

[0020] In summary, the present invention can support an electronic system with dual antennas communicating in the same frequency band. By means of the design that the signal generating module 51 of the control unit 5 continuously and sequentially sends the first control signal and the second control signal to the logic gate module 52 within the frequency, and the logic gate module 52 simultaneously transmits the first control signal and the second control signal, which are different from each other, to the corresponding switch module 43 at the first end 53 and the second end 54, respectively, the switch module 43 of one antenna device 4 is electrically connected to the wireless communication module 41 and the antenna module 42, and the switch module 43 of another antenna device 4 is disconnected from the wireless communication module 41 and the antenna module 42, so that the antenna devices 4 in the same frequency band can effectively transmit and receive signals without interfering with each other. The system has good practicality and can indeed achieve the purpose of the present invention.

[0021] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An electronic system capable of supporting dual-antenna communication in the same frequency band, characterized in that: Include: a housing; a mainboard disposed in the housing; a processing unit disposed on the mainboard; two antenna devices disposed in the housing, the antenna devices being of the same frequency band, each antenna device comprising a wireless communication module disposed on the mainboard and connected to the processing unit, an antenna module disposed on the housing, and a switch module disposed on the mainboard and controlled to open and close the electrical connection between the wireless communication module and the antenna module, when the switch module of each antenna device receives a first control signal, each switch module will open the electrical connection between the wireless communication module and the antenna module, and enable the wireless communication module to receive and send signals through the antenna module; when the switch module of each antenna device receives a second control signal, each switch module will disconnect the connection between the wireless communication module and the antenna module, and enable the wireless communication module to not receive and send signals through the antenna module; and A control unit is arranged on the main board and connected to the processing unit, and can control the opening and closing of the switch module of the antenna device, including a signal generating module connected to the processing unit, and a logic gate module connected to the signal generating module and connected to the switch module. The logic gate module has a first end connected to the switch module of one of the antenna devices, and a second end connected to the switch module of the other antenna device. The processing unit enables the signal generating module to start and enables the signal generating module to continuously and sequentially send the first control signal and the second control signal to the logic gate module within a frequency. When the logic gate module receives the first control signal, the first end of the logic gate module transmits the first control signal to the corresponding switch module and the second end transmits the second control signal to the corresponding switch module; when the logic gate module receives the second control signal, the first end of the logic gate module transmits the second control signal to the corresponding switch module and the second end transmits the first control signal to the corresponding switch module.

2. The electronic system capable of supporting dual-antenna communication in the same frequency band according to claim 1, characterized in that: The logic gate module of the control unit also has an inverter having an input terminal connected to the first terminal and an output terminal connected to the second terminal. The first control signal sent by the signal generating module of the control unit is a high-level signal, and the second control signal is a low-level signal.

3. The electronic system capable of supporting dual-antenna communication in the same frequency band according to claim 2, characterized in that: When the signal generating module of the control unit is activated, a square wave signal is outputted, and the square wave signal continuously and sequentially sends the high level signal and the low level signal to the logic gate module within the frequency.

4. The electronic system capable of supporting dual-antenna communication in the same frequency band according to claim 1, characterized in that: The switch module of each antenna device has a switching pin. When the switching pin of each switch module receives the first control signal, each switch module will switch to open the electrical connection between the wireless communication module and the antenna module, and enable the wireless communication module to receive and send signals through the antenna module; when the switching pin of each switch module receives the second control signal, each switch module will switch to disconnect the connection between the wireless communication module and the antenna module, and enable the wireless communication module to not receive and send signals through the antenna module, wherein the switching pin of one switch module is connected to the first end of the logic gate module of the control unit, and the switching pin of the other switch module is connected to the second end of the logic gate module of the control unit.

5. The electronic system capable of supporting dual-antenna communication in the same frequency band according to claim 4, characterized in that: The switch module of each antenna device also has a radio frequency switch connected to the switch pin. Each radio frequency switch is a connection switch (Switch) that can switch and disconnect the wireless communication module and the antenna module. When each radio frequency switch receives the first control signal from the switch pin, each radio frequency switch will switch to connect the wireless communication module and the antenna module; when each radio frequency switch receives the second control signal from the switch pin, each radio frequency switch will switch to disconnect the wireless communication module and the antenna module.

6. The electronic system capable of supporting dual-antenna communication in the same frequency band according to claim 3, characterized in that: The frequency is 1kHz.

7. The electronic system capable of supporting dual-antenna communication in the same frequency band according to claim 3, characterized in that: The frequency is 10kHz.

8. The electronic system capable of supporting dual-antenna communication in the same frequency band according to claim 1, characterized in that: The antenna device supports Bluetooth wireless signal communication transmission.

Images