WO2020221101A1 - Antenna combination device and mobile terminal - Google Patents

Abstract

Disclosed are an antenna combination device and a mobile terminal. The antenna combination device comprises: a millimeter-wave antenna, a processing module, a communication radio-frequency circuit, and a detection radio-frequency circuit, wherein the processing module is used for controlling the state of connection between the communication radio-frequency circuit and the millimeter-wave antenna and the state of connection between the detection radio-frequency circuit and the millimeter-wave antenna, such that the communication radio-frequency circuit or the detection radio-frequency circuit is connected to the millimeter-wave antenna so as to perform pre-determined processing to acquire a corresponding radio-frequency signal.

Description

Antenna combination equipment and mobile terminal

This disclosure is filed based on a Chinese application filed on April 28, 2019, the application date is 201910350669.6, and the priority of the Chinese application is claimed. The entire content of the Chinese application is hereby incorporated into the present disclosure as a reference.

Technical field

The present disclosure relates to the field of antenna technology but is not limited to the field of antenna technology, and in particular to an antenna combination device and a mobile terminal.

Background technique

The fifth generation (5G) communication technology includes the millimeter wave frequency band (24250MHZ～52600MHZ), which may be extended to higher frequency bands for wireless communication. Millimeter wave detection refers to the use of electromagnetic waves in the millimeter wave frequency band to realize the detection of objects. Millimeter wave detection can not only realize the positioning of objects, but also have the capabilities of imaging and material discrimination. It has a very important role in the fields of unmanned driving technology. .

Summary of the invention

The embodiments of the present disclosure provide an antenna combination device and a mobile terminal.

According to an embodiment of the present disclosure, an antenna combination device is provided, and the antenna combination device includes:

Millimeter wave antenna, processing module, communication radio frequency circuit and detection radio frequency circuit;

The processing module is configured to control the connection state of the communication radio frequency circuit and the detection radio frequency circuit and the millimeter wave antenna, so that the communication radio frequency circuit or the detection radio frequency circuit and the millimeter wave antenna Connect, perform predetermined processing to obtain the corresponding radio frequency signal.

In the above-mentioned antenna combination device, the communication radio frequency circuit and the detection radio frequency circuit share one or more of a power amplifier, a low noise amplifier, and a frequency conversion circuit.

In the above-mentioned antenna combination device, a switch is also included:

The switch is configured to switch the connection state of the unshared device with the communication radio frequency circuit and the detection radio frequency circuit, so that the unshared device is applied to the communication radio frequency circuit or the detection radio frequency circuit .

In the above antenna combination device, the communication radio frequency circuit and the detection radio frequency circuit share a power amplifier, and all components except the power amplifier correspond to a first switch;

The first switch is configured to switch the connection state of all devices except the power amplifier, the communication radio frequency circuit and the detection radio frequency circuit, so that all devices except the power amplifier are used To the communication radio frequency circuit or the detection radio frequency circuit.

In the above-mentioned antenna combination device, the communication radio frequency circuit and the detection radio frequency circuit share the power amplifier and the low noise amplifier, and all devices except the power amplifier and the low noise amplifier have a second switch corresponding to switch;

The second switch is configured to switch the connection status of all devices except the power amplifier and the low noise amplifier to the communication radio frequency circuit and the detection radio frequency circuit, so that the power amplifier And all devices except the low noise amplifier are applied to the communication radio frequency circuit or the detection radio frequency circuit.

In the above antenna combination device, the millimeter wave antenna includes a first antenna unit and a second antenna unit, the first antenna unit is connected to the communication radio frequency circuit, and the second antenna unit is connected to the detection radio frequency circuit connection;

The communication radio frequency circuit performs predetermined processing on the electromagnetic signal received by the first antenna unit to obtain the communication radio frequency signal;

The detection radio frequency circuit performs predetermined processing on the electromagnetic signal received by the second antenna unit to obtain the detection radio frequency signal.

In the aforementioned antenna combination device, the processing module further includes a baseband chip connected to the communication radio frequency circuit and a DSP chip connected to the detection radio frequency circuit;

The baseband chip is used to convert a communication radio frequency signal obtained by predetermined processing of the communication radio frequency circuit into a baseband signal;

The DSP chip is used to perform digital domain processing on the detection radio frequency signal obtained by the predetermined processing of the detection radio frequency circuit.

In the above-mentioned antenna combination device, the processing module controls the connection state of the communication radio frequency circuit and the detection radio frequency circuit with the millimeter wave antenna through time division multiplexing, space division multiplexing or frequency division multiplexing.

In the aforementioned antenna combination device, the processing module recognizes the type of the electromagnetic signal according to the intensity and/or modulation mode of the electromagnetic signal received by the millimeter wave antenna, and controls the communication radio frequency circuit and the detection according to the type. The connection state of the radio frequency circuit and the millimeter wave antenna.

In the above antenna combination device, the millimeter wave antenna includes a single antenna and/or an antenna array composed of multiple antennas.

According to another embodiment of the present disclosure, a mobile terminal is provided, which includes the above-mentioned antenna combination device.

The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects:

An antenna combination device and a mobile terminal in the embodiments of the present disclosure can enable the antenna combination device to have both communication radio frequency functions and radio frequency detection functions, thereby improving product value, reducing costs, reducing hardware footprint and area, and reducing the structure of the antenna combination device The complexity makes the antenna combination device apply to navigation system, detection system, imaging system and automatic driving system, etc., expanding the application range of the product.

In order to make the above-mentioned objects, features and advantages of the present disclosure more obvious and understandable, preferred embodiments are described in detail below in conjunction with accompanying drawings.

Description of the drawings

In order to explain the technical solutions of the present disclosure more clearly, the following will briefly introduce the drawings that need to be used in the embodiments. It should be understood that the following drawings only show certain embodiments of the present disclosure and should not be It is regarded as a limitation of the protection scope of the present disclosure. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without creative work.

Fig. 1 shows a schematic structural diagram of an antenna combination device provided by an embodiment of the present disclosure.

Fig. 2 shows a schematic structural diagram of an antenna combination device provided by an embodiment of the present disclosure.

Fig. 3 shows a schematic structural diagram of a shared device provided by an embodiment of the present disclosure.

Fig. 4 shows a schematic structural diagram of a shared device provided by an embodiment of the present disclosure.

FIG. 5 shows a schematic structural diagram of a shared device provided by an embodiment of the present disclosure.

FIG. 6 shows a schematic structural diagram of an antenna combination device provided by an embodiment of the present disclosure.

FIG. 7 shows a schematic structural diagram of an antenna combination device provided by an embodiment of the present disclosure.

FIG. 8 shows a schematic structural diagram of an antenna combination device provided by an embodiment of the present disclosure.

Fig. 9 shows a schematic structural diagram of an antenna combination device provided by an embodiment of the present disclosure.

Symbol description of main components:

Antenna combination equipment; 11-millimeter wave antenna; 111-first antenna unit; 112-second antenna unit; 12-processing module; 121-baseband chip; 122-DSP chip; 13-communication radio frequency circuit; 14-detection radio frequency circuit 15-switch; 1501-first switch; 1503-third switch; 151-duplexer; 152-power amplifier; 1521-first power amplifier; 1522-second power amplifier; 153-low noise amplifier 1531-The first low noise amplifier; 1532-The second low noise amplifier; 154-Frequency conversion circuit; 1541-The first frequency conversion circuit; 1542-The second frequency conversion circuit; 16-Shared radio frequency circuit.

Detailed ways

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. The components of the embodiments of the present disclosure generally described and illustrated in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present disclosure provided in the accompanying drawings is not intended to limit the scope of the claimed present disclosure, but merely represents selected embodiments of the present disclosure. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without creative work shall fall within the protection scope of the present disclosure.

Hereinafter, some embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

In the related art, the millimeter wave antenna in the mobile terminal is only used to send and receive mobile communication signals, and does not have a detection function. In addition, if mobile terminals and other devices that implement detection functions adopt a separate deployment method of millimeter-wave antennas and detection modules (for example, millimeter-wave radar), it will cause problems such as high cost, large footprint, and complex structure. In view of this, as shown in FIG. 1, the antenna combination device 10 includes a millimeter wave antenna 11, a processing module 12, a communication radio frequency circuit 13 and a detection radio frequency circuit 14.

The millimeter wave antenna 11 is electrically connected to the communication radio frequency circuit 13 and the detection radio frequency circuit 14 respectively.

The millimeter wave antenna 11 is configured to transmit and receive electromagnetic signals. The electromagnetic signals may include different types of signals, such as electromagnetic signals for communication and electromagnetic signals for detection. The electromagnetic signal for communication carries the communication information and is used for communication. Electromagnetic signals for detection, used for detection, for example, distance detection and/or obstacle detection.

The processing module 12 is configured to control the connection state of the communication radio frequency circuit 13 and the detection radio frequency circuit 14 with the millimeter wave antenna 11, so that the communication radio frequency circuit 13 or the detection radio frequency circuit 14 and The millimeter wave antenna 11 is connected to perform predetermined processing to obtain corresponding radio frequency signals.

In some embodiments, after the communication radio frequency circuit 13 is connected to the millimeter wave antenna 11, the communication radio frequency circuit 13 performs predetermined processing on the electromagnetic signal received by the millimeter wave antenna 11 to obtain a communication radio frequency signal. Similarly, after the detection radio frequency circuit 14 is connected to the millimeter wave antenna 11, the detection radio frequency circuit 14 performs predetermined processing on the electromagnetic signal received by the millimeter wave antenna 11 to obtain a detection radio frequency signal.

In some embodiments, the antenna combination device 10 includes a controlled switch module; the controlled switch module includes: one or more controlled switches. The controlled switch module can be fixedly connected with the millimeter wave antenna, and the controlled switch module conducts the connection between the millimeter wave antenna and the communication radio frequency circuit 13, or conducts and The connection of the radio frequency circuit 14 is detected to realize the switching of the connection state. The processing module 12 is connected to the control end of the first controlled switch, and controls the free end of the first controlled switch to switch between the communication radio frequency circuit 13 and the detection radio frequency circuit 14, thereby controlling the millimeter wave antenna The connection state with the communication radio frequency circuit 13 and the detection radio frequency circuit 14.

In this embodiment, the communication radio frequency circuit 13 may include a power amplifier, a low noise amplifier, a duplexer, a frequency conversion circuit, and an analog-to-digital conversion circuit. The predetermined processing operation performed by the communication radio frequency circuit 13 includes power amplification. Operation, low-noise amplification operation, duplex operation, frequency conversion operation and analog-to-digital conversion operation.

The detection radio frequency circuit 14 may include, but is not limited to: power amplifiers, low noise amplifiers, duplexers, frequency conversion circuits, and analog-to-digital conversion circuits. The predetermined processing operations performed by the detection radio frequency circuit 14 include power amplification operations. , Low-noise amplification operation, duplex operation, frequency conversion operation and analog-to-digital conversion operation.

The communication radio frequency signal specifically refers to the radio frequency signal used for conventional communication (Internet access, voice, message, etc.) in the antenna combination device 10, for example, a packet domain signal that provides data services and a circuit that provides voice services in a 5G network Domain signal etc.

The detection radio frequency signal specifically refers to the radio frequency signal used for detection and identification in addition to the communication radio frequency signal. For example, the radar detection signal emitted by the millimeter wave antenna returns the radio frequency signal after encountering an obstacle, which can be used to identify surrounding obstacles The location, nature, movement pattern, etc.

In this embodiment, the millimeter wave refers to electromagnetic waves of 24,250 MHz and 52,600 MHz specified in the 5G standard. With changes in the 5G standard in the future, it may be extended to higher frequency bands.

In some embodiments, the millimeter wave antenna 11 may be a single antenna and/or an antenna array composed of multiple antennas.

In some embodiments, the millimeter wave antenna 11 may include an antenna or an antenna array with a beam scanning function. The antenna may be a patch antenna or a dipole antenna.

In this embodiment, the millimeter wave antenna 11 may use an antenna array with beam scanning function to improve the beam’s EIRP (Effective Isotropic Radiated Power, effective omni-directional transmit power) and spatial coverage to meet the 3GPP standard millimeter wave According to the performance requirements of the frequency band, the antenna array may be a patch antenna array composed of multiple patch antennas, or a dipole antenna array composed of multiple dipole antennas.

In some embodiments, the millimeter wave antenna may be board-level, LTCC (Low Temperature Co-fired Ceramic), semiconductor and other integrated processes, and may be in the form of PCB antennas, package antennas, and on-chip antennas.

In some embodiments, the processing module 12 can control the connection of the communication radio frequency circuit 13 or the detection radio frequency circuit 14 and the millimeter wave antenna 11 through time division multiplexing, space division multiplexing, and frequency division multiplexing. status.

For example, in time division multiplexing, the processing module 12 determines the connection time according to the corresponding relationship between the pre-stored or real-time agreed connection time and the corresponding radio frequency circuit, and controls the communication radio frequency circuit 13 and the communication radio frequency circuit 13 according to the connection time. The connection state between the radio frequency circuit 14 and the millimeter wave antenna 11 is detected.

Among them, the corresponding relationship between the connection time and the corresponding radio frequency circuit can be described in the following table.

Connection time/s	Radio frequency circuit
1	Communication radio frequency circuit
2	Detect RF circuit
3	Communication radio frequency circuit
...	...

As shown in the above table, the processing module 12 controls the communication radio frequency circuit 13 to connect with the millimeter wave antenna 11 in the 1s, and performs predetermined processing on the electromagnetic signal received by the millimeter wave antenna 11 to obtain the communication radio frequency signal; the processing module 12 controls the detection radio frequency in the 2s The circuit is connected with the millimeter wave antenna 11, and performs predetermined processing on the electromagnetic signal received by the millimeter wave antenna 11 to obtain the detection radio frequency signal; the processing module 12 controls the communication radio frequency circuit 13 to connect with the millimeter wave antenna 11 in the 3s, and connects the millimeter wave antenna 11 The received electromagnetic signal undergoes predetermined processing to obtain a communication radio frequency signal, and so on.

In some embodiments, the processing module 12 may also control the communication radio frequency circuit 13 and detect the connection state of the radio frequency circuit 14 and the millimeter wave antenna 11 according to the control signal input by the user.

In some embodiments, the processing module 12 identifies the type of the electromagnetic signal according to the intensity and/or modulation mode of the electromagnetic signal received by the millimeter wave antenna, and controls the communication radio frequency circuit 13 and the detection according to the type. The connection state of the radio frequency circuit 14 and the millimeter wave antenna 11.

In some embodiments, the debugging method is an important feature for distinguishing electromagnetic signals of different properties. Modulation methods may include OFDM (Orthogonal Frequency Division Multiplexing), QAM (Quadrature Amplitude Modulation, Quadrature Amplitude Modulation), MSK (Minimum Shift Keying, Minimum Frequency Shift Keying), etc. The types of electromagnetic signals include electromagnetic signal types for communication and electromagnetic signal types for detection.

In this embodiment, the type of electromagnetic signal can be identified according to parameters such as signal strength and/or modulation mode. For example, when the signal strength of the electromagnetic signal reaches a predetermined strength threshold, it is an electromagnetic signal for communication, and when it does not reach a predetermined strength threshold, it is Electromagnetic signals for detection. When the modulation method of the electromagnetic signal is the same as the modulation method of the pre-defined communication signal, the electromagnetic signal is an electromagnetic signal for communication; otherwise, the electromagnetic signal is an electromagnetic signal for detection.

As shown in FIG. 2, the antenna combination device 10 includes a millimeter wave antenna 11, a processing module 12, a communication radio frequency circuit 13, a detection radio frequency circuit 14 and a common radio frequency circuit 16.

The processing module 12 is connected to the communication radio frequency circuit 13 and the detection radio frequency circuit 14 respectively.

In this embodiment, the communication radio frequency circuit 13 includes a power amplifier, a low noise amplifier, a duplexer, a frequency conversion circuit, and an analog-to-digital conversion circuit, etc. The detection radio frequency circuit 14 includes a power amplifier, a low noise amplifier, a duplexer, Frequency conversion circuit and analog-digital conversion circuit, etc.

In this embodiment, the millimeter wave antenna 11, the communication radio frequency circuit 13, the detection radio frequency circuit 14 and the common radio frequency circuit 16 are integrated. In some other embodiments, the millimeter wave antenna 11, the communication radio frequency circuit 13, the detection radio frequency circuit 14, and the common radio frequency circuit 16 may also be independently arranged, which is not limited here.

In some embodiments, the communication radio frequency circuit 13 and the detection radio frequency circuit 14 share one or more of a power amplifier, a low noise amplifier, and a frequency conversion circuit. The shared one or more devices are called shared Radio frequency circuit 16. All the devices in the shared radio frequency circuit 16 and the unshared devices in the communication radio frequency circuit 13 together form the communication radio frequency circuit 13. All the components in the shared radio frequency circuit 16 and the components that are not shared in the detection radio frequency circuit 14 together form a detection radio frequency circuit.

In some embodiments, in order to reduce the hardware cost and the hardware footprint of the antenna combination device 10, there are some reusable devices or circuits in the communication radio frequency circuit 13 and the detection radio frequency circuit 14. This part of the reusable devices or circuits It can be used together with the communication radio frequency circuit 13 and the detection radio frequency circuit 14.

In this embodiment, in order to simplify the graphics and facilitate the description of the solution, the communication radio frequency circuit 13 and the detection radio frequency circuit 14 only show four components: a duplexer, a power amplifier, a low noise amplifier, and a frequency conversion circuit. Those skilled in the art can know that both the communication radio frequency circuit 13 and the detection radio frequency circuit 14 may also include a feeder network, an analog-to-digital conversion circuit and other devices.

In some embodiments, after the communication radio frequency circuit 13 and the detection radio frequency circuit 14 share components, the antenna combination device 10 further includes a switch 15 for switching between unshared components and the communication radio frequency. The connection state of the circuit 13 and the detection radio frequency circuit 14 so that the unshared device is applied to the communication radio frequency circuit 13 or the detection radio frequency circuit 14.

In FIGS. 3 to 5, for the convenience of description, only three components of the duplexer 151, the power amplifier 152, and the low noise amplifier 153 are used to illustrate the shared radio frequency circuit 16. It should be clear to those skilled in the art that in the radio frequency circuit It can also include other devices, such as frequency conversion circuits, analog-to-digital conversion circuits, and so on. At the same time, only the electromagnetic signal for communication and the electromagnetic signal for detection are signals of different frequencies, and the power amplifier 152 and the low noise amplifier 153 can process signals of multiple frequencies as an example to illustrate the solution of sharing the radio frequency circuit 16.

In some embodiments, as shown in FIG. 3, the communication radio frequency circuit 13 and the detection radio frequency circuit 14 share a power amplifier 152, that is, the shared radio frequency circuit 16 includes a power amplifier 152. All devices in the communication radio frequency circuit 13 except the power amplifier 152 and all devices in the detection radio frequency circuit 14 except the power amplifier 152 correspond to a first switch 1501, and the first switch 1501 is used for The connection state of the unshared device and the communication radio frequency circuit 13 or the detection radio frequency circuit 14 is switched, so that the unshared device is applied to the communication radio frequency circuit 13 or the detection radio frequency circuit 14.

The unshared devices here are: separate devices, which only belong to the communication radio frequency circuit alone or belong to the detection radio frequency circuit alone.

In this way, the first switch is located between the common device and the subordinate device, and according to whether it is currently performing millimeter wave communication or millimeter wave-based detection; through its own switch state switching, the common device and the subordinate device are connected. For example, when performing millimeter-wave communications, connecting a common device and separately belonging to the communication radio frequency circuit; when performing millimeter wave-based communication, connecting the common device and a separate radio frequency circuit for detecting.

In this solution, a millimeter wave antenna 11 can simultaneously transmit and receive electromagnetic signals for detection and electromagnetic signals for communication as an example. In some other embodiments, two millimeter wave antennas 11 may be included. One millimeter wave antenna 11 is used to transmit and receive electromagnetic signals for communication, and the other millimeter wave antenna is used to transmit and receive electromagnetic signals for detection. In some other embodiments, the millimeter wave antenna 11 may further include a first antenna unit and a second antenna unit, wherein the first antenna unit is used for transmitting and receiving electromagnetic signals for communication, and the second antenna unit is used for transmitting and receiving electromagnetic signals. Use electromagnetic signals.

As shown in FIG. 3, the communication radio frequency circuit 13 includes a power amplifier 152 and a first low noise amplifier 1531. The detection radio frequency circuit 14 includes a power amplifier 152 and a second low noise amplifier 1532. The component shared by the communication radio frequency circuit 13 and the detection radio frequency circuit 14 is a power amplifier 152. In addition, in order to enable the antenna combination device 10 to perform duplex communication, the shared radio frequency circuit 16 may further include a duplexer 151, which is used to enable the antenna combination device 10 to have the functions of receiving and transmitting signals at the same time. Therefore, the shared radio frequency circuit 16 includes a power amplifier 152 and a duplexer 151, and the duplexer 151 is connected to the millimeter wave antenna 11.

When the millimeter wave antenna 11 receives an electromagnetic signal for communication, the processing module 12 switches the connection state of the first low noise amplifier 1531 through the first switch 1501, so that the duplexer 151 is only connected to the first low noise amplifier 1531, The communication electromagnetic signal from the duplexer 151 is sent to the first low-noise amplifier 1531 for low-noise amplifying processing to obtain the communication electromagnetic signal after the low-noise amplifying processing, which can also be passed through the first down-conversion not shown in the figure The circuit converts the communication electromagnetic signal after the low-noise amplification processing into an intermediate frequency signal to obtain a communication radio frequency signal. The processing module 12 can directly perform subsequent analysis and processing on the communication radio frequency signal.

When the millimeter wave antenna 11 receives the electromagnetic signal for detection, the processing module 12 switches the connection state of the second low noise amplifier 1532 through the first switch 1501, so that the duplexer 151 is only connected to the second low noise amplifier 1532, The electromagnetic signal for detection from the duplexer 151 is sent to the second low-noise amplifier 1532 for low-noise amplifying processing to obtain the detected electromagnetic signal after the low-noise amplifying processing, which can also be passed through a second down-conversion not shown in the figure The circuit converts the detected electromagnetic signal after the low-noise amplification processing into an intermediate frequency signal to obtain a detected radio frequency signal. The processing module 12 can directly perform subsequent analysis and processing on the detection radio frequency signal.

When the processing module 12 needs to transmit the communication radio frequency signal through the millimeter wave antenna 11, the processing module 12 can also convert the communication radio frequency signal into a millimeter wave signal through a first up-conversion circuit not shown in the figure to obtain communication An electromagnetic signal is used, and the electromagnetic signal for communication is sent to the power amplifier 152 for power amplifying processing, and then transmitted through the millimeter wave antenna 11.

When the processing module 12 needs to transmit the detection radio frequency signal through the millimeter wave antenna 11, the processing module 12 can also convert the detection radio frequency signal into a millimeter wave signal through a second up-conversion circuit not shown in the figure to obtain the detection An electromagnetic signal is used, and the electromagnetic signal for detection is sent to the power amplifier 152 for power amplification processing, and then transmitted through the millimeter wave antenna 11.

It is worth noting that the above-mentioned first up-conversion circuit and second up-conversion circuit may also correspond to a first frequency conversion switch, and the first frequency conversion switch is used to switch between the first up-conversion circuit and the second up-conversion circuit. In the connection state, the first up-conversion circuit is applied to the communication radio frequency circuit, and the second up-conversion circuit is applied to the detection radio frequency circuit. The first frequency conversion switch and the first switch may be the same switch.

In some embodiments, as shown in FIG. 4, the communication radio frequency circuit 13 and the detection radio frequency circuit 14 share a power amplifier 152 and a low noise amplifier 153, that is, the shared radio frequency circuit 16 includes a power amplifier 152 and a low noise amplifier 153. All the devices except the power amplifier 152 and the low noise amplifier 153 in the communication radio frequency circuit 13 and all the devices except the power amplifier 152 and the low noise amplifier 153 in the detection radio frequency circuit correspond to a second switch (Figure Not shown), the second switch is used to switch the connection state of the unshared device with the communication radio frequency circuit 13 and the detection radio frequency circuit 14, so that the unshared device is applied to the communication radio frequency circuit 13 or the detection radio frequency circuit 14.

In this solution, a millimeter wave antenna 11 can simultaneously transmit and receive electromagnetic signals for detection and electromagnetic signals for communication as an example. In some other embodiments, two millimeter wave antennas 11 may be included. One millimeter wave antenna 11 is used to transmit and receive electromagnetic signals for communication, and the other millimeter wave antenna is used to transmit and receive electromagnetic signals for detection. In some other embodiments, the millimeter wave antenna 11 may further include a first antenna unit and a second antenna unit, wherein the first antenna unit is used for transmitting and receiving electromagnetic signals for communication, and the second antenna unit is used for transmitting and receiving electromagnetic signals. Use electromagnetic signals.

As shown in FIG. 4, the communication radio frequency circuit 13 includes a power amplifier 152 and a low noise amplifier 153. The detection radio frequency circuit 14 includes a power amplifier 152 and a low noise amplifier 153. Among them, the components shared by the communication radio frequency circuit and the detection radio frequency circuit are the power amplifier 152 and the low noise amplifier 153. In addition, the communication radio frequency circuit 13 and the detection radio frequency circuit 14 can also share a duplexer 151, which is used to enable the antenna combination device 10 to have both receiving and transmitting functions. Therefore, the shared radio frequency circuit 16 includes a power amplifier 152, a duplexer 151, and a low noise amplifier 153. The duplexer 151 is connected to the millimeter wave antenna 11.

When the millimeter wave antenna 11 receives the electromagnetic signal for communication, the electromagnetic signal for communication is sent to the low-noise amplifier 153 through the duplexer 151 for low-noise amplification processing to obtain the communication electromagnetic signal after the low-noise amplification processing. The processing module 12 controls the second switch (not shown in the figure) to connect the low-noise amplifier 153 only with the first down-conversion circuit, so that the communication electromagnetic signal after the low-noise amplification processing is converted through the first down-conversion circuit. It is an intermediate frequency signal to obtain a communication radio frequency signal. The processing module 12 can directly perform subsequent analysis and processing on the communication radio frequency signal.

When the millimeter wave antenna 11 receives the electromagnetic signal for detection, the electromagnetic signal for detection is sent to the low-noise amplifier 153 through the duplexer 151 for low-noise amplification processing to obtain the detection electromagnetic signal after the low-noise amplification processing. The processing module 12 controls the second switch (not shown in the figure) to connect the low-noise amplifier 153 only with the second down-conversion circuit, so that the detected electromagnetic signal after the low-noise amplification process is converted through the second down-conversion circuit. It is an intermediate frequency signal to obtain a detection radio frequency signal. The processing module 12 can directly perform subsequent analysis and processing on the detection radio frequency signal.

When the processing module 12 needs to transmit the communication radio frequency signal through the millimeter wave antenna 11, the processing module 12 can also convert the communication radio frequency signal into a millimeter wave signal through a first up-conversion circuit not shown in the figure to obtain communication An electromagnetic signal is used, and the electromagnetic signal for communication is sent to the power amplifier 152 for power amplifying processing, and then transmitted through the millimeter wave antenna 11.

When the processing module 12 needs to transmit the detection radio frequency signal through the millimeter wave antenna 11, the processing module 12 can also convert the detection radio frequency signal into a millimeter wave signal through a second up-conversion circuit not shown in the figure to obtain the detection An electromagnetic signal is used, and the electromagnetic signal for detection is sent to the power amplifier 152 for power amplification processing, and then transmitted through the millimeter wave antenna 11.

It is worth noting that the above-mentioned first up-conversion circuit and second up-conversion circuit may also correspond to a second frequency conversion switch, and the second frequency conversion switch is used to switch between the first up-conversion circuit and the second up-conversion circuit. In the connection state, the first up-conversion circuit is applied to the communication radio frequency circuit, and the second up-conversion circuit is applied to the detection radio frequency circuit. The second frequency conversion switch and the second switch may be the same switch.

In some embodiments, as shown in FIG. 5, the communication radio frequency circuit 13 and the detection radio frequency circuit 14 share a low noise amplifier 153, that is, the common radio frequency circuit 16 includes a low noise amplifier 153. All components except the low noise amplifier 153 in the communication radio frequency circuit 13 and all components except the low noise amplifier 153 in the detection radio frequency circuit 14 correspond to a third switch 1503, and the third switch 1503 It is used to switch the connection state of the unshared device and the communication radio frequency circuit 13 or the detection radio frequency circuit 14 so that the unshared device is applied to the communication radio frequency circuit 13 or the detection radio frequency circuit 14.

In this solution, a millimeter wave antenna 11 can simultaneously transmit and receive electromagnetic signals for detection and electromagnetic signals for communication as an example. In some other embodiments, two millimeter wave antennas 11 may be included. One millimeter wave antenna 11 is used to transmit and receive electromagnetic signals for communication, and the other millimeter wave antenna is used to transmit and receive electromagnetic signals for detection. In some other embodiments, the millimeter wave antenna 11 may further include a first antenna unit and a second antenna unit, wherein the first antenna unit is used for transmitting and receiving electromagnetic signals for communication, and the second antenna unit is used for transmitting and receiving electromagnetic signals. Use electromagnetic signals.

As shown in FIG. 5, the communication radio frequency circuit 13 includes a low noise amplifier 153 and a first power amplifier 1521. The detection radio frequency circuit includes a low noise amplifier 153 and a second power amplifier 1522. Among them, the component shared by the communication radio frequency circuit 13 and the detection radio frequency circuit 14 is a low noise amplifier 153. In addition, the communication radio frequency circuit 13 and the detection radio frequency circuit 14 can also share the duplexer 151. Therefore, the shared radio frequency circuit 16 includes a low noise amplifier 153 and a duplexer 151.

When the millimeter wave antenna 11 receives the electromagnetic signal for communication, the electromagnetic signal for communication is sent to the low-noise amplifier 153 through the duplexer 151 for low-noise amplification processing, to obtain the communication electromagnetic signal after the low-noise amplification processing, and reduce the noise The amplified communication electromagnetic signal is converted into an intermediate frequency signal after passing through a first down-conversion circuit not shown in the figure to obtain a communication radio frequency signal. The processing module 12 can directly perform subsequent analysis and processing on the communication radio frequency signal.

When the millimeter wave antenna 11 receives the electromagnetic signal for detection, the electromagnetic signal for detection is sent to the low noise amplifier 153 through the duplexer 151 for low noise amplification processing, to obtain the detection electromagnetic signal after low noise amplification processing, and reduce the noise The amplified detection electromagnetic signal is converted into an intermediate frequency signal after passing through a second down-conversion circuit not shown in the figure, and a detection radio frequency signal is obtained. The processing module 12 can directly perform subsequent analysis and processing on the detection radio frequency signal.

It is worth noting that the above-mentioned first down-conversion circuit and second down-conversion circuit may also correspond to a third frequency conversion switch, and the third frequency conversion switch is used to switch between the first down-conversion circuit and the second down-conversion circuit. In the connection state, the first down-conversion circuit is applied to the communication radio frequency circuit, and the second down-conversion circuit is applied to the detection radio frequency circuit. The third frequency conversion switch and the third switch 1503 described below may be the same switch.

When the processing module 12 needs to transmit the communication radio frequency signal through the millimeter wave antenna 11, the processing module 12 switches the connection between the first up-conversion circuit (not shown in the figure) and the first power amplifier 1521 through the third switch 1503 State, the first up-conversion circuit (not shown in the figure) and the first power amplifier 1521 are applied to the communication radio frequency circuit 13. The communication radio frequency signal is converted into a millimeter wave signal by the first up-conversion circuit to obtain an electromagnetic signal for communication, and the electromagnetic signal for communication is sent to the first power amplifier 1521 for power amplification processing, and then emitted through the millimeter wave antenna 11.

When the processing module 12 needs to transmit the detection radio frequency signal through the millimeter wave antenna 11, the processing module 12 switches the connection between the second up-conversion circuit (not shown in the figure) and the second power amplifier 1522 through the third switch 1503 State, the second up-conversion circuit (not shown in the figure) and the second power amplifier 1522 are applied to the detection radio frequency circuit 14. The detection radio frequency signal is converted into a millimeter wave signal by the second up-conversion circuit to obtain an electromagnetic signal for detection, and the electromagnetic signal for detection is sent to the second power amplifier 1522 for power amplification processing and then emitted through the millimeter wave antenna 11.

In this embodiment, the switch 15 may be a single-pole double-throw switch with two branches. Only one branch of the two branches can be connected at the same time, and the other branch can be disconnected.

The connection relationship between the two branches in the switch and the radio frequency circuit can be described in the following table.

In the above table, when the A branch of the switch 15 is turned on and the B branch is turned off, the devices in the non-shared radio frequency circuit are connected to the communication radio frequency circuit 13, and the preprocessing function of the communication radio frequency circuit 13 is performed. The electromagnetic signal for communication received by the antenna 11 undergoes predetermined processing; when the branch B of the switch 15 is turned on and the branch A is turned off, the devices in the non-shared radio frequency circuit are connected to the detection radio frequency circuit 14, and the detection radio frequency circuit 14 is executed. The preprocessing function of the millimeter wave antenna 11 performs predetermined processing on the electromagnetic signal for detection.

In some other embodiments, the switch 15 may also be a single-pole single-throw switch, and the switch 15 controls the shared device to be applied to the corresponding radio frequency circuit according to the state of opening and closing.

The connection relationship between the on and off states of the switch and the radio frequency circuit can be described in the following table.

In the above table, "0" represents the open state of the switch 15 and "1" represents the closed state of the switch 15. When the switch 15 is in the off state, the devices in the non-shared radio frequency circuit are connected to the communication radio frequency circuit 13, perform the preprocessing function of the communication radio frequency circuit 13, and perform predetermined processing on the electromagnetic signal for communication received by the millimeter wave antenna 11; When the switch 15 is in the closed state, the devices in the unshared radio frequency circuit are connected to the detection radio frequency circuit 14 to perform the preprocessing function of the detection radio frequency circuit 14 and perform predetermined processing on the electromagnetic signal for detection received by the millimeter wave antenna 11.

In some embodiments, when the electromagnetic signal for communication and the electromagnetic signal for detection are transmitted in the same frequency band, the electromagnetic signal received by the millimeter wave antenna 11 is a mixed signal of the electromagnetic signal for communication and the electromagnetic signal for detection. At this time, in order to enable the shared radio frequency circuit 16 to be quickly and accurately applied to the corresponding radio frequency circuit (communication radio frequency circuit 13 or detection radio frequency circuit 14), a fifth switch can also be provided for the shared radio frequency circuit 16. The switch is used to switch the connection state of all devices in the shared radio frequency circuit 16 and the communication radio frequency circuit 13 or the detection radio frequency circuit 14 so that the common radio frequency circuit 16 is applied to the communication radio frequency circuit 13 or the detection radio frequency circuit 14.

As shown in FIG. 6, the antenna combination device 10 includes a processing module 12, a first antenna unit 111, a second antenna unit 112, a communication radio frequency circuit 13, a detection radio frequency circuit 14 and a common radio frequency circuit 16.

The first antenna unit 111 is connected to the communication radio frequency circuit 13, the second antenna unit 112 is connected to the detection radio frequency circuit 14, and the communication radio frequency circuit 13 and the detection radio frequency circuit 14 can share a power amplifier, One or several devices in the low noise amplifier and frequency conversion circuit, and the shared one or several devices are called the shared radio frequency circuit 16.

The communication radio frequency circuit 13 and the detection radio frequency circuit 14 are connected to the processing module 12.

The first antenna unit 111 is used to receive electromagnetic signals for communication, and the processing module 12 controls the communication radio frequency circuit 13 and the common radio frequency circuit 16 solution to perform predetermined processing on the electromagnetic signals for communication to obtain communication radio frequency signals.

The second antenna unit 112 is used to receive the electromagnetic signal for detection, and the processing module 12 controls the detection radio frequency circuit 14 and the common radio frequency circuit 16 solution to perform predetermined processing on the electromagnetic signal for detection to obtain the detection radio frequency signal.

As shown in FIG. 7, the antenna combination device 10 includes a processing module 12, a first antenna unit 111, a second antenna unit 112, a communication radio frequency circuit 13 and a detection radio frequency circuit 14.

The first antenna unit 111 is connected to the communication radio frequency circuit 13, the second antenna unit 112 is connected to the detection radio frequency circuit 14, the communication radio frequency circuit 13 and the detection radio frequency circuit 14 are connected to the processing module 12Connect.

The first antenna unit 111 is configured to receive electromagnetic signals for communication, and the processing module 12 controls the communication radio frequency circuit 13 to perform predetermined processing on the electromagnetic signals for communication received by the first antenna unit 111 to obtain communication. Radio frequency signal.

The second antenna unit 112 is configured to receive an electromagnetic signal for detection, and the processing module 12 controls the detection radio frequency circuit 14 to perform predetermined processing on the electromagnetic signal for detection received by the second antenna unit 112 to obtain a detection radio frequency signal .

As shown in FIG. 8, the antenna combination device 10 includes a millimeter wave antenna 11, a processing module 12, a communication radio frequency circuit 13 and a detection radio frequency circuit 14. The processing module 12 also includes a baseband chip 121 and a DSP chip 122.

The millimeter wave antenna 11 is respectively connected to the communication radio frequency circuit 13 and the detection radio frequency circuit 14, the communication radio frequency circuit 13 is connected to the baseband chip 121, and the detection radio frequency circuit 14 is connected to the DSP chip 122 .

The baseband chip 121 is configured to convert a communication radio frequency signal obtained through predetermined processing by the communication radio frequency circuit 13 into a baseband signal to facilitate a first processing operation, the first processing operation including encoding operation, decoding operation, One or more of modulation operation and demodulation operation.

In some embodiments, after the baseband chip 121 receives the communication radio frequency signal sent by the communication radio frequency circuit 13, the baseband chip 121 converts the predetermined processed communication radio frequency signal into a baseband signal. In addition, the baseband chip 121 also performs operations such as modulation and encoding on the baseband signal and sends it to other processors, such as the main processor in the mobile terminal where the antenna combination device 10 is located.

When the baseband chip 121 receives modulated and encoded baseband signals sent by other processors, the baseband chip is also used to demodulate and decode the modulated and encoded baseband signals to obtain the original Baseband signal, and convert the original baseband signal into a communication radio frequency signal that can be pre-processed by the communication radio frequency circuit 13. The communication radio frequency circuit 13 reverse-processes the communication radio frequency signal and converts it into an electromagnetic signal that can be transmitted through the millimeter wave antenna 11. signal.

The DSP chip 122 is configured to perform digital domain processing on the detection radio frequency signal obtained by performing predetermined processing by the detection radio frequency circuit 14 to facilitate a second processing operation. The second processing operation includes processing the converted digital signal. The signal is recognized, and the corresponding function instruction is determined according to the recognition result. Among them, the digital domain processing described in this embodiment includes one or several functions of digital signal processing functions, and the digital signal processing functions may include functions such as analysis, transformation, filtering, detection, modulation, demodulation, and fast algorithms.

In some embodiments, the DSP chip 122 digitizes the detection radio frequency signal sent by the detection radio frequency circuit 14 and converts it into a digital signal, which can be subsequently identified according to predetermined scene requirements.

For example, the predetermined scene requirements may include a navigation system for the visually impaired, a millimeter wave flashlight, automatic driving, and millimeter wave human imaging.

In the navigation system for the visually impaired, the millimeter wave antenna 11 in the antenna combination device 10 emits electromagnetic waves to detect the user's surrounding environment, and returns electromagnetic signals during the detection process. The processing module 12 controls the detection radio frequency circuit 14 to perform predetermined processing on the returned electromagnetic signals. To detect the radio frequency signal, the DSP chip 122 converts the detected radio frequency signal into a digital signal, and then recognizes the digital signal through a preset recognition algorithm, and provides information such as the position, nature, and movement state of various obstacles. The antenna combination device 10 can also transmit information such as the location, nature and motion state of the obstacle to the user through interactive methods such as voice and vibration, and when a dangerous target such as a car approaches the user, the terminal sends a stronger signal to remind the user, and It reminds the user of the presence of surrounding objects or people by emitting sounds and lights.

In a millimeter wave flashlight, in a dark environment, the millimeter wave antenna 11 in the antenna combination device 10 emits electromagnetic waves to detect the user's surrounding environment, and returns electromagnetic signals during the detection process, and the processing module 12 controls the detection radio frequency circuit 14 to perform predetermined processing on the returned electromagnetic signals Then, the detection radio frequency signal is obtained. After the DSP chip 122 converts the detection radio frequency signal into a digital signal, the digital signal is identified through a preset identification algorithm, and information such as the position, nature and movement state of various obstacles is given. And display this information on the terminal screen. In some embodiments, the antenna combination device 10 can also perform millimeter wave imaging of the surrounding environment and display the surrounding environment on the terminal screen.

In automatic driving, the main processor of the terminal where the antenna combination device 10 is located runs the automatic driving function program. The millimeter wave antenna 11 in the antenna combination device 10 emits electromagnetic waves to detect the user's surrounding environment, returns electromagnetic signals during the detection process, and the processing module 12 controls the detection radio frequency The circuit 14 performs predetermined processing on the returned electromagnetic signal to obtain the detection radio frequency signal. After the DSP chip 122 converts the detection radio frequency signal into a digital signal, the digital signal is identified by a preset identification algorithm, and various obstacles are given. According to the automatic driving function program, according to the position, nature and motion state of various obstacles, output the relevant instructions of automatic driving to the relevant carrier that executes the automatic driving instructions, in complex environments and weather , To achieve automatic driving functions such as adaptive cruise, obstacle avoidance, and lane keeping.

In the millimeter wave human body imaging, because the millimeter wave is harmless to the human body and has strong penetrating power, it can accurately identify the objects carried by the human body. Using these characteristics, the millimeter wave antenna 11 in the antenna combination device 10 emits electromagnetic waves to detect the user's surrounding environment, and returns electromagnetic signals during the detection process. The processing module 12 controls the detection radio frequency circuit 14 to perform predetermined processing on the returned electromagnetic signals to obtain the detection radio frequency signals. After the DSP chip 122 converts the detection radio frequency signal into a digital signal, it recognizes the digital signal through a preset recognition algorithm, and gives information on various parts of the human body, and then performs human body imaging according to the information on various parts of the human body, and the imaging results are real-time Displayed on the terminal screen can greatly improve the security check capability and portability.

As shown in FIG. 9, the antenna combination device may include a millimeter wave antenna 11, a processing module 12, a first antenna unit 111, a second antenna unit 112, a communication radio frequency circuit 13, and a detection radio frequency circuit 14. The processing module 12 also includes Baseband chip 121 and DSP chip 122. The first antenna unit 111 is connected to the communication radio frequency circuit 13, the communication radio frequency circuit 13 is connected to the baseband chip 121; the second antenna unit 112 is connected to the detection radio frequency circuit 14, and the detection radio frequency circuit 14 is connected The DSP chip 122.

In some embodiments, in order to reduce the cost and volume of the antenna combination device, the baseband chip 121 and the DSP chip 122 in the above embodiments can also be integrated into the main processor of the mobile terminal where the antenna combination device 10 is located. The subsequent main processor executes all the processing functions in the above-mentioned embodiments, so that the radio frequency architecture and computing architecture of the antenna combination device 10 with both communication and detection functions are consistent with the traditional mobile terminal.

In addition to the main processor function of the traditional mobile terminal, the main processor is also responsible for performing functions such as detection and recognition, and performs human-computer interaction with the user through audio, video, tactile and other methods according to the predetermined scene requirements. .

In other embodiments of the present disclosure, a mobile terminal is also provided, and the mobile terminal includes the aforementioned antenna combination device 10. The mobile terminal may also include a memory, an input unit, a display unit, a photographing unit, an audio circuit, a wireless fidelity (WiFi) module, and a power supply.

In addition, the functional modules or units in the various embodiments of the present disclosure may be integrated together to form an independent part, or each module may exist alone, or two or more modules may be integrated to form an independent part.

The above are only specific implementations of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present disclosure. It should be covered within the protection scope of the present disclosure.

Claims (10)

1. An antenna combination device, the antenna combination device includes:

   Millimeter wave antenna, processing module, communication radio frequency circuit and detection radio frequency circuit;

   The processing module is used to control the connection state of the communication radio frequency circuit and the detection radio frequency circuit and the millimeter wave antenna, so that the communication radio frequency circuit or the detection radio frequency circuit is connected with the millimeter wave antenna, Perform predetermined processing to obtain the corresponding radio frequency signal.
2. The antenna combination device according to claim 1, wherein the communication radio frequency circuit and the detection radio frequency circuit share a power amplifier and/or a low noise amplifier.
3. The antenna combination device according to claim 2, further comprising a switch:

   The switch is configured to switch the connection state of the unshared device with the communication radio frequency circuit and the detection radio frequency circuit, so that the unshared device is applied to the communication radio frequency circuit or the detection radio frequency circuit .
4. The antenna combination device according to claim 3, wherein the communication radio frequency circuit and the detection radio frequency circuit share a power amplifier, and all devices except the power amplifier correspond to a first switch;

   The first switch is configured to switch the connection state of all devices except the power amplifier, the communication radio frequency circuit and the detection radio frequency circuit, so that all devices except the power amplifier are used To the communication radio frequency circuit or the detection radio frequency circuit.
5. The antenna combination device according to claim 3, wherein the communication radio frequency circuit and the detection radio frequency circuit share a power amplifier and the low noise amplifier, and all devices except the power amplifier and the low noise amplifier Corresponding to a second switch;

   The second switch is configured to switch the connection status of all devices except the power amplifier and the low noise amplifier to the communication radio frequency circuit and the detection radio frequency circuit, so that the power amplifier And all devices except the low noise amplifier are applied to the communication radio frequency circuit or the detection radio frequency circuit.
6. 4. The antenna combination device according to claim 3, wherein the communication radio frequency circuit and the detection radio frequency circuit share a low noise amplifier, and all devices except the low noise amplifier correspond to a third switch;

   The third switch is configured to switch the connection state of all devices except the low noise amplifier and the communication radio frequency circuit and the detection radio frequency circuit, so that all devices except the low noise amplifier The device is applied to the communication radio frequency circuit or the detection radio frequency circuit.
7. The antenna combination device according to claim 1, wherein the millimeter wave antenna includes a first antenna unit and a second antenna unit, the first antenna unit is connected to the communication radio frequency circuit, and the second antenna unit is connected to The detection radio frequency circuit connection;

   The communication radio frequency circuit performs predetermined processing on the electromagnetic signal received by the first antenna unit to obtain the communication radio frequency signal;

   The detection radio frequency circuit performs predetermined processing on the electromagnetic signal received by the second antenna unit to obtain the detection radio frequency signal.
8. The antenna combination device according to claim 1, wherein the processing module further comprises a baseband chip connected with the communication radio frequency circuit and a DSP chip connected with the detection radio frequency circuit;

   The baseband chip is configured to convert a communication radio frequency signal obtained through predetermined processing of the communication radio frequency circuit into a baseband signal;

   The DSP chip is configured to perform digital domain processing on the detection radio frequency signal obtained through predetermined processing by the detection radio frequency circuit.
9. The antenna combination device according to claim 6, wherein the processing module recognizes the type of the electromagnetic signal according to the intensity and/or modulation mode of the electromagnetic signal received by the millimeter wave antenna, and controls the communication radio frequency according to the type The circuit and the connection state of the detection radio frequency circuit and the millimeter wave antenna.
10. A mobile terminal, wherein the mobile terminal comprises the antenna combination device according to any one of claims 1-9.

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