CN112510345A - External antenna device, control method and device thereof, and storage medium - Google Patents

External antenna device, control method and device thereof, and storage medium Download PDF

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Publication number
CN112510345A
CN112510345A CN201910872346.3A CN201910872346A CN112510345A CN 112510345 A CN112510345 A CN 112510345A CN 201910872346 A CN201910872346 A CN 201910872346A CN 112510345 A CN112510345 A CN 112510345A
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China
Prior art keywords
pin
duplexer
external antenna
antenna body
state
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Granted
Application number
CN201910872346.3A
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Chinese (zh)
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CN112510345B (en
Inventor
付森
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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Priority to CN201910872346.3A priority Critical patent/CN112510345B/en
Publication of CN112510345A publication Critical patent/CN112510345A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/0006—Particular feeding systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/401—Circuits for selecting or indicating operating mode
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0602—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The disclosure relates to an external antenna device, a control method and a control device thereof, and a storage medium, and belongs to the technical field of terminals. The external antenna device includes: the antenna comprises a Type-C interface, a radio frequency transmission circuit and an antenna body; the Type-C interface is connected with the first end of the radio frequency transmission circuit, and the second end of the radio frequency transmission circuit is connected with the antenna body. This is disclosed through combining together Type-C interface, radio frequency transmission circuit and antenna body, forms an external antenna device, and this external antenna device can insert the terminal usage. When the communication quality of the terminal is poor, the external antenna device can be used for enhancing the signal strength and improving the communication quality of the terminal.

Description

External antenna device, control method and device thereof, and storage medium
Technical Field
The disclosed embodiment relates to the technical field of terminals, in particular to an external antenna device, a control method and a control device thereof, and a storage medium.
Background
At present, mobile terminals such as mobile phones communicate with the outside through antennas. With the design of mobile terminals such as mobile phones, etc., becoming thinner and thinner, antennas of mobile phones are also becoming smaller and smaller.
In the related art, as the antenna of the mobile phone becomes smaller, the environment of the antenna of the mobile phone becomes worse. In the related art, when the mobile phone performs communication, the antenna loss is as high as 7 db, which correspondingly reduces the transmitting power and receiving sensitivity of the mobile phone, and affects the normal communication of the mobile phone.
Disclosure of Invention
The embodiment of the disclosure provides an external antenna device, a control method and a control device thereof, and a storage medium. The technical scheme is as follows:
according to a first aspect of the embodiments of the present disclosure, there is provided an external antenna device, the device including: the antenna comprises a Type-C interface, a radio frequency transmission circuit and an antenna body;
the Type-C interface is connected with the first end of the radio frequency transmission circuit, and the second end of the radio frequency transmission circuit is connected with the antenna body.
Optionally, the first end of the radio frequency transmission circuit is connected to a target pin of the Type-C interface, where the target pin is one pin of the Type-C interface.
Optionally, the radio frequency transmission circuit includes: a first duplexer, a second duplexer, a power amplifier, and a low noise amplifier; a first end of the first duplexer is connected with the target pin, a second end of the first duplexer is connected with a first end of the power amplifier, and a third end of the first duplexer is connected with a first end of the low-noise amplifier; the first end of the second duplexer is connected with the antenna body, the second end of the second duplexer is connected with the second end of the power amplifier, and the third end of the second duplexer is connected with the second end of the low-noise amplifier.
Optionally, the antenna body comprises: a first antenna body and a second antenna body; the radio frequency transmission circuit includes: a power amplifier, a low noise amplifier and a switch; the change-over switch is connected with the target pin, and the change-over switch is also connected with the first end of the power amplifier and the first end of the low-noise amplifier respectively; the second end of the power amplifier is connected with the first antenna body, and the second end of the low-noise amplifier is connected with the second antenna body; when the change-over switch is in a first state, a path among the target pin, the power amplifier and the first antenna body is conducted; and when the change-over switch is in a second state, the target pin, the low-noise amplifier and the second antenna body are communicated.
Optionally, the radio frequency transmission circuit includes: the first transmission module and the second transmission module; the first end of the first transmission module is connected with the target pin, the second end of the first transmission module is connected with the antenna body, and the first transmission module is used for transmitting radio-frequency signals in a first transmission mode; the first end of the second transmission module is connected with the target pin, the second end of the second transmission module is connected with the antenna body, and the second transmission module is used for transmitting radio-frequency signals in a second transmission mode; wherein the first transmission mode and the second transmission mode are two different transmission modes.
Optionally, the antenna body comprises: the antenna comprises a first antenna body, a second antenna body and a third antenna body; the first transmission module comprises: a first duplexer, a second duplexer, a first power amplifier and a first low noise amplifier; the second transmission module includes: the second power amplifier, the second low noise amplifier and the change-over switch; the radio frequency transmission circuit further includes: a third duplexer; the first end of the first duplexer is connected with the first end of the third duplexer, the second end of the first duplexer is connected with the first end of the first power amplifier, and the third end of the first duplexer is connected with the first end of the first low-noise amplifier; a first end of the second duplexer is connected with the third antenna body, a second end of the second duplexer is connected with a second end of the first power amplifier, and a third end of the second duplexer is connected with a second end of the first low noise amplifier; the change-over switch is connected with the target pin, and the change-over switch is also connected with the second end of the third duplexer and the first end of the second power amplifier respectively; the second end of the second power amplifier is connected with the first antenna body, and the second end of the second low-noise amplifier is connected with the second antenna body; the first end of the second low-noise amplifier is connected with the third end of the third duplexer; in the first transmission mode, a path between the target pin, the first power amplifier and the third antenna body is conducted, or a path between the target pin, the first low noise amplifier and the third antenna body is conducted; in the second transmission mode, if the switch is in the first state, the path between the target pin, the second power amplifier and the first antenna body is conducted, and if the switch is in the second state, the path between the target pin, the second low noise amplifier and the second antenna body is conducted.
Optionally, the apparatus further comprises: a switch assembly; the first end of the radio frequency transmission circuit is connected with the switch assembly, the switch assembly is further connected with a first pin and a second pin of the Type-C interface respectively, and the first pin and the second pin are pins which are opposite in position and have the same function; a first control pin of the Type-C interface is connected with a first resistor, a second control pin of the Type-C interface is connected with a second resistor, and the second control pin is also connected with the switch assembly; the resistance value of the second resistor is larger than that of the first resistor; when the switch assembly is in a first state, a path between a first end of the radio frequency transmission circuit and the first pin is conducted; and when the switch assembly is in a second state, a path between the first end of the radio frequency transmission circuit and the second pin is conducted.
Optionally, the radio frequency transmission circuit includes: a first duplexer, a second duplexer, a power amplifier, and a low noise amplifier; the switch assembly comprises a first switch assembly; a first end of the first switch assembly is connected with the first pin, a second end of the first switch assembly is connected with the second pin, and a third end of the first switch assembly is connected with a first end of the first duplexer; the second end of the first duplexer is connected with the first end of the power amplifier, and the third end of the first duplexer is connected with the first end of the low-noise amplifier; the first end of the second duplexer is connected with the antenna body, the second end of the second duplexer is connected with the second end of the power amplifier, and the third end of the second duplexer is connected with the second end of the low-noise amplifier.
Optionally, the first switch assembly is configured to: when receiving a first control signal from the second control pin, switching to a conducting state between the first end of the first switch component and the third end of the first switch component; and when receiving a second control signal from the second control pin, switching to a conducting state between the second end of the first switch component and the third end of the first switch component.
Optionally, the antenna body comprises: a first antenna body and a second antenna body; the radio frequency transmission circuit includes: a power amplifier and a low noise amplifier; the switch assembly comprises a second switch assembly; a first end of the second switch assembly is connected with the first pin, a second end of the second switch assembly is connected with the second pin, a third end of the second switch assembly is connected with the first end of the power amplifier, and a fourth end of the second switch assembly is connected with the first end of the low noise amplifier; the second end of the power amplifier is connected with the first antenna body, and the second end of the low-noise amplifier is connected with the second antenna body.
Optionally, the second switch assembly is configured to: when receiving a first control signal from the second control pin, switching to a state of conduction between the first end of the second switch component and the third end of the second switch component, and a state of conduction between the second end of the second switch component and the fourth end of the second switch component; when receiving a second control signal from the second control pin, switching to a state of conduction between the first end of the second switch component and the fourth end of the second switch component, and a state of conduction between the second end of the second switch component and the third end of the second switch component.
Optionally, the radio frequency transmission circuit includes: the first transmission module and the second transmission module; the antenna body includes: the antenna comprises a first antenna body, a second antenna body and a third antenna body; the first end of the first transmission module is connected with the first pin, the second end of the first transmission module is connected with the first antenna body, and the first transmission module is used for transmitting radio frequency signals in a first transmission mode; a first end of the second transmission module is connected with the second pin, a second end of the second transmission module is connected with the second antenna body, a third end of the second transmission module is connected with the third antenna body, and the second transmission module is used for transmitting radio-frequency signals in a second transmission mode; wherein the first transmission mode and the second transmission mode are two different transmission modes.
Optionally, the first transmission module includes: a first duplexer, a second duplexer, a first power amplifier and a first low noise amplifier; the second transmission module includes: a second power amplifier and a second low noise amplifier; the radio frequency transmission circuit includes: a third duplexer; the switch assembly comprises a third switch assembly; the first end of the first duplexer is connected with the first end of the third duplexer; the second end of the first duplexer is connected with the first end of the first power amplifier, and the third end of the first duplexer is connected with the first end of the first low-noise amplifier; a first end of the second duplexer is connected with the third antenna body, a second end of the second duplexer is connected with a second end of the first power amplifier, and a third end of the second duplexer is connected with a second end of the first low noise amplifier; a first end of the third switch component is connected with the first pin, a second end of the third switch component is connected with the second pin, a third end of the third switch component is connected with a second end of the third duplexer, and a fourth end of the third switch component is connected with a first end of the second power amplifier; the second end of the second power amplifier is connected with the first antenna body, and the second end of the second low-noise amplifier is connected with the second antenna body; and the first end of the second low-noise amplifier is connected with the third end of the third duplexer.
Optionally, the third switch assembly is configured to: in the first transmission mode or the second transmission mode, when receiving a first control signal from the second control pin, switching to a state of conduction between the first terminal of the third switch component and the third terminal of the third switch component, and a state of conduction between the second terminal of the third switch component and the fourth terminal of the third switch component; when receiving a second control signal from the second control pin, the switch circuit is switched to a state of conduction between the first end of the third switch component and the fourth end of the third switch component, and a state of conduction between the second end of the third switch component and the third end of the third switch component.
Optionally, the Type-C interface includes: the tongue plate is provided with an upper tongue plate surface and a lower tongue plate surface which are parallel and opposite; the first row of pins are arranged on the upper tongue plate surface; the second row of pins are arranged on the lower tongue plate surface; and the metal grounding surface is arranged between the upper tongue plate surface and the lower tongue plate surface.
Optionally, the metal ground plane is parallel to the upper tongue plate surface and the lower tongue plate surface and has the same size; the thickness of the metal grounding surface is smaller than that of the tongue plate.
According to a second aspect of the embodiments of the present disclosure, there is provided a method for controlling an external antenna device, the method including:
when the external antenna device is detected to be inserted through the Type-C interface, detecting the insertion state of the external antenna device, wherein the insertion state comprises a forward insertion state and a reverse insertion state;
generating a control signal according to the insertion state, wherein the control signal is used for controlling the external antenna device to conduct a transmission channel of a radio frequency signal;
and sending the control signal to the external antenna device.
Optionally, the generating a control signal according to the insertion status includes: if the insertion state is the positive insertion state, generating a first control signal; if the insertion state is the reverse insertion state, generating a second control signal; wherein the first control signal and the second control signal are two different control signals.
Optionally, in the FDD operating mode, the first control signal is used to control the switch component of the external antenna device to be connected to the first pin of the external antenna device, and the second control signal is used to control the switch component of the external antenna device to be connected to the second pin of the external antenna device.
Optionally, in a TDD operating mode, the first control signal is used to control conduction between a first terminal and a third terminal, and conduction between a second terminal and a fourth terminal of a switch assembly of the external antenna device; the second control signal is used for controlling the conduction between the first end and the fourth end of the switch component of the external antenna device and the conduction between the second end and the third end.
Optionally, the method further comprises: detecting the strength of a radio frequency signal transmitted by the external antenna device; if the intensity is greater than a preset threshold value, controlling the external antenna device to be switched from a working state to a non-working state; and controlling the built-in antenna to be switched from a non-working state to a working state.
According to a third aspect of the embodiments of the present disclosure, there is provided a control device of an external antenna device, the device including:
the external antenna device comprises a state detection module, a state detection module and a state detection module, wherein the state detection module is configured to detect the insertion state of the external antenna device when detecting that the external antenna device is inserted through a Type-C interface, and the insertion state comprises a forward insertion state and a reverse insertion state;
the signal generation module is configured to generate a control signal according to the insertion state, wherein the control signal is used for controlling the external antenna device to conduct a transmission path of a radio frequency signal;
a signal transmitting module configured to transmit the control signal to the external antenna device.
Optionally, the signal generating module further comprises: a first signal generation submodule configured to generate a first control signal when the insertion state is the positive insertion state; a second signal generation submodule configured to generate a second control signal when the insertion state is the reverse insertion state; wherein the first control signal and the second control signal are two different control signals.
Optionally, in the FDD operating mode, the first control signal is used to control the switch component of the external antenna device to be connected to the first pin of the external antenna device, and the second control signal is used to control the switch component of the external antenna device to be connected to the second pin of the external antenna device.
Optionally, in a TDD operating mode, the first control signal is used to control conduction between a first terminal and a third terminal, and conduction between a second terminal and a fourth terminal of a switch assembly of the external antenna device; the second control signal is used for controlling the conduction between the first end and the fourth end of the switch component of the external antenna device and the conduction between the second end and the third end.
Optionally, the apparatus further comprises: a signal detection module configured to detect the strength of the radio frequency signal transmitted through the external antenna device; the state switching module is configured to control the external antenna device to be switched from a working state to a non-working state when the strength is greater than a preset threshold; the state switching module is further configured to control the built-in antenna to be switched from a non-working state to a working state.
According to a fourth aspect of the embodiments of the present disclosure, there is provided a control device for an external antenna device, the device including:
a processor;
a memory for storing executable instructions of the processor;
wherein the processor is configured to:
when the external antenna device is detected to be inserted through the Type-C interface, detecting the insertion state of the external antenna device, wherein the insertion state comprises a forward insertion state and a reverse insertion state;
generating a control signal according to the insertion state, wherein the control signal is used for controlling the external antenna device to conduct a transmission channel of a radio frequency signal;
and sending the control signal to the external antenna device.
According to a fifth aspect of embodiments of the present disclosure, there is provided a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method according to the second aspect.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
through combining together Type-C interface, radio frequency transmission circuit and antenna body, form an external antenna device, and this external antenna device can insert the terminal usage. When the communication quality of the terminal is poor, the external antenna device can be used for enhancing the signal strength and improving the communication quality of the terminal.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a schematic diagram illustrating pin arrangement of a Type-C male header;
FIG. 2 is a pin arrangement diagram illustrating an exemplary Type-C female header;
fig. 3 is a schematic structural diagram illustrating an external antenna device;
fig. 4 is a circuit diagram illustrating an external antenna device supporting FDD mode of operation;
fig. 5 is a circuit diagram illustrating an external antenna device supporting a TDD mode of operation;
fig. 6 is a circuit diagram illustrating another external antenna device supporting a TDD mode of operation;
fig. 7 is a circuit diagram illustrating an external antenna device compatible with FDD and TDD modes of operation;
fig. 8 is a circuit diagram illustrating another external antenna device compatible with FDD and TDD modes of operation;
fig. 9 is a circuit diagram of an external antenna device compatible with FDD and TDD modes of operation;
fig. 10 is a circuit diagram illustrating another external antenna device supporting FDD mode of operation;
fig. 11 is a circuit diagram illustrating another external antenna device supporting a TDD mode of operation;
fig. 12 is a circuit diagram illustrating an external antenna device supporting a TDD mode of operation;
fig. 13 is a circuit diagram illustrating an external antenna device compatible with FDD and TDD operation modes;
fig. 14 is a circuit diagram illustrating an external antenna device compatible with FDD and TDD operation modes;
fig. 15 is a circuit diagram illustrating an external antenna device compatible with FDD and TDD operation modes;
FIG. 16 is a schematic diagram illustrating a pin structure of a 16-pin Type-C interface;
FIG. 17 illustrates a schematic diagram of a microstrip line structure of a Type-C interface;
fig. 18 is a flowchart illustrating a control method of an external antenna device;
fig. 19 is a block diagram illustrating a control apparatus of an external antenna apparatus;
fig. 20 is a block diagram schematically showing another control apparatus of the external antenna apparatus;
fig. 21 illustrates a block diagram of an apparatus.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Before describing the embodiments of the present disclosure, a description will be given of a Type-C interface.
The Type-C interface can include the public first and the female head of Type-C, both looks adaptations, and the public head of Type-C can insert the female head of Type-C, also can follow the female head of Type-C and extract.
As shown in fig. 1 and 2, pin arrangement diagrams of Type-C male and Type-C female heads are shown, respectively.
As shown in FIG. 1, the Type-C male header includes a VBUS pin, a GND pin, a TX + pin, a TX-pin, an RX + pin, an RX-pin, an SBU1 pin, an SBU2 pin, a D + pin, a D-pin, a CC1 pin, and a CC2 pin.
As shown in FIG. 2, the Type-C female header includes a VBUS pin, a GND pin, a TX + pin, a TX-pin, an RX + pin, an RX-pin, an SBU1 pin, an SBU2 pin, a D + pin, a D-pin, a CC1 pin, and a CC2 pin.
The VBUS pin and the GND pin are signals related to a power supply, the D + pin and the D-pin support data transmission, and the TX +/TX-pin and the RX +/RX-pin are used for supporting high-speed data transmission. The CC1 pin and the CC2 pin are used to probe connection, distinguish between front and back sides, distinguish between DFP (Downstream Facing Port) and UFP (Upstream Facing Port), configure VBUS, and configure other modes, such as audio and related configurations. The SBU pin is used to transmit auxiliary signals, and has different roles in different scenarios. The RX + pins comprise an RX1+ pin and an RX2+ pin, the RX pins comprise an RX 1-pin and an RX 2-pin, the TX + pins comprise a TX1+ pin and a TX2+ pin, and the TX-pins comprise a TX 1-pin and a TX 2-pin.
Optionally, as shown in fig. 1 and 2, the Type-C interface includes: the tongue plate is provided with an upper tongue plate surface and a lower tongue plate surface which are parallel and opposite; the first row of pins are arranged on the upper tongue plate surface; the second row of pins are arranged on the surface of the lower tongue plate; and a metal grounding surface GND-m arranged between the upper tongue plate surface and the lower tongue plate surface. Optionally, at least one of the pins in the first row and the pins in the second row is used for transmitting the radio frequency signal RF. Illustratively, pin SBU1 and pin SBU2 may implement functions for transmitting radio frequency signals RF. It should be noted that the pin for transmitting the radio frequency signal RF is a target pin described below.
Optionally, the metal ground plane GND-m is parallel to the upper tongue plate surface and the lower tongue plate surface and has the same size; the thickness of the metal grounding surface GND-m is smaller than that of the tongue plate.
FIG. 16 is a schematic diagram of a pin structure of a 16-pin Type-C interface. Compared with a 24-pin Type-C interface, pins A2, A3, A10, A11, B2, B3, B10 and B11 between the ground pin GND and the power pin VBUS are not provided with pins, and are smooth and insulated tongue plates. Illustratively, pin SBU1 and pin SBU2 may implement functions for transmitting radio frequency signals RF.
Based on the Type-C interface structure, the pin for transmitting the radio frequency signal RF and the metal ground plane GND-m form a microstrip line structure. Fig. 17 is a schematic structural diagram of a microstrip line of a Type-C interface provided in an exemplary embodiment of the present disclosure. As shown in the figure, the tongue plate is a partially enlarged structure diagram, which comprises: a pin for transmitting radio frequency signals RF, a tongue plate 1003, a tongue plate injection molding medium 401 and a metal ground plane GND-m. Wherein the tongue plate injection medium is a non-metallic material.
The width of the pin for transmitting the radio frequency signal RF is w, the thickness of the pin is T, the distance from the lower surface of the pin for transmitting the radio frequency signal RF to the surface of the metal grounding surface GND-m is H, and the dielectric constant of the tongue plate injection medium 401 is Er. Wherein, the width w of the pin for transmitting the radio frequency signal RF is 0.2mm according to the Type-C Specification. And adjusting other parameters to reach 50 ohm impedance of the microstrip line, and the pin for transmitting the radio frequency signal RF can transmit the radio frequency signal.
The width w and the thickness T of the pin for transmitting the radio frequency signal RF, the distance H from the lower surface of the pin for transmitting the radio frequency signal RF to the surface of the metal grounding surface GND-m, and the specific value of the dielectric constant Er of the tongue plate injection medium 401 can be selected according to different applicable situations and different parameters.
Fig. 3 schematically illustrates a structural diagram of an external antenna device according to an embodiment of the present disclosure. As shown in fig. 3, the external antenna device 30 may include a Type-C interface 31, a radio frequency transmission circuit 32, and an antenna body 33. The first end of the radio frequency transmission circuit 32 is connected with the Type-C interface 31, and the second end of the radio frequency transmission circuit 32 is connected with the antenna body 33.
Wherein, Type-C interface 31 both can be the public head of Type-C, also can be the female head of Type-C. If the Type-C interface 31 is a Type-C male connector, the Type-C female connector of the terminal can be connected; if the Type-C interface 31 is a Type-C female head, the Type-C male head of the terminal can be connected. The terminal may be any electronic device with a Type-C interface, such as a mobile phone, a tablet computer, an electronic book reading device, a multimedia playing device, a wearable device, and the like, which is not limited in this disclosure. The antenna body 33 may be a common antenna for transmitting and receiving, or may include multiple antennas, which is not limited in the embodiment of the present disclosure. In the embodiment of the present disclosure, the external antenna device 30 may further include some necessary components such as a housing, so as to achieve the purpose of protecting the circuit and the Type-C interface. For example, the Type-C interface 31 and the radio frequency transmission circuit 32 are both contained in the housing.
To sum up, the technical scheme that this disclosed embodiment provided forms an external antenna device through combining together Type-C interface, radio frequency transmission circuit and antenna body, and this external antenna device can insert the terminal and use. When the communication quality of the terminal is poor, the external antenna device can be used for enhancing the signal strength and improving the communication quality of the terminal.
In one possible embodiment, the first terminal of the rf transmission circuit 32 of the external antenna device 30 is connected to a target pin of the Type-C interface 31, which is a pin of the Type-C interface 31.
In the embodiment of the present disclosure, the target pin may be an SBU1 pin of the Type-C interface 31, or an SBU2 pin of the Type-C interface 31. Under the condition that the radio-frequency signal of the terminal is transmitted through the SBU1 pin of the Type-C interface of the terminal, if the target pin is the SBU1 pin of the Type-C interface 31 of the external antenna device 30, the external antenna device 30 can be normally used only when being plugged; if the target pin is the SBU2 pin of the Type-C interface 31 of the external antenna device 30, the external antenna device 30 can only be inserted backwards. Under the condition that the radio-frequency signal of the terminal is transmitted through the SBU2 pin of the Type-C interface of the terminal, if the target pin is the SBU1 pin of the Type-C interface 31 of the external antenna device 30, the external antenna device 30 can only be inserted reversely; if the target pin is the SBU2 pin of the Type-C interface 31 of the external antenna device 30, the external antenna device 30 can be normally used only when being plugged.
It should be noted that, in the following embodiment of the present disclosure, the Type-C interface of the terminal is a Type-C female head, the Type-C interface 31 of the external antenna device 30 is a Type-C male head, and the radio frequency signal of the terminal is transmitted through the SBU1 pin of the Type-C female head, and the external antenna device 30 can be normally used only when being plugged, to illustrate the internal line connection of the external antenna device 30.
In one example, as shown in fig. 4, in order to enable the external antenna apparatus to adapt to a Frequency Division Duplex (FDD) operation mode of the terminal, the radio Frequency transmission circuit includes: a first duplexer 41, a second duplexer 42, a power amplifier 43, and a low noise amplifier 44; a first terminal of the first duplexer 41 is connected to the SBU1 of the Type-C interface 46, a second terminal of the first duplexer 41 is connected to the first terminal of the power amplifier 43, and a third terminal of the first duplexer 41 is connected to the first terminal of the low noise amplifier 44; a first end of the second duplexer 42 is connected to the antenna body 45, a second end of the second duplexer 42 is connected to a second end of the power amplifier 43, and a third end of the second duplexer 42 is connected to a second end of the low noise amplifier 44. In the embodiment of the present disclosure, the low noise amplifier 44 and the power amplifier 43 are respectively connected to the VBUS pin of the Type-C interface 46, and the VBUS pin provides a power source VCC.
In the embodiment of the disclosure, after the external antenna device is inserted into the terminal, the external antenna device can enter a working state. When the terminal sends a radio frequency signal, the radio frequency signal is sent by the terminal, sequentially passes through the SBU1 pin of the Type-C interface 46, the first duplexer 41 and the power amplifier 43, and is sent out by the antenna body 45; when the terminal receives the radio frequency signal, the radio frequency signal enters from the antenna body 45, sequentially passes through the low noise amplifier 44, the second duplexer 42 and the SBU1 pin of the Type-C interface 46, and is transmitted to the terminal.
In another example, as shown in fig. 5, in order to enable the external antenna device to adapt to a TDD (Time Division duplex) operation mode of the terminal, the antenna body includes: a first antenna body 51 and a second antenna body 52; the radio frequency transmission circuit includes: a power amplifier 53, a low noise amplifier 54, and a changeover switch 55; the switch 55 is connected to the SBU1 of the Type-C interface 56, and the switch 55 is further connected to the first terminal of the power amplifier 53 and the first terminal of the low noise amplifier 54, respectively; a second end of the power amplifier 53 is connected to the first antenna body 51, and a second end of the low noise amplifier 54 is connected to the second antenna body 52; when the switch 55 is in the first state, the path between the SBU1, the power amplifier 53 and the first antenna body 51 is turned on; when the switch 55 is in the second state, the path between the SBU1, the lna 54 and the second antenna body 52 is turned on. In the embodiment of the present disclosure, the low noise amplifier 54, the power amplifier 53 and the switch 55 are respectively connected to the VBUS pin of the Type-C interface 56, and the VBUS pin provides a power source VCC.
The first state is a state of transmitting radio frequency signals, and the second state is a state of receiving radio frequency signals. Alternatively, the state of the switch 55 may be controlled by the CC1 pin or the CC2 pin of the Type-C interface 56. For example, as shown in fig. 5, when the state of the switch 55 is controlled by the CC2 pin of the Type-C interface 56, the switch 55 is connected to the CC2 pin of the Type-C interface 56, and in order to protect the circuit and prevent short circuit caused by excessive current in the circuit, the CC2 pin of the Type-C interface 56 is grounded through a resistor (Rd)57, and the resistance of the resistor (Rd)57 is higher, for example, the resistance of the resistor (Rd)57 is more than two kilo ohms. When the pin CC2 is turned on low, the switch 55 is switched to the first state, i.e., the circuit between the pin SBU1 and the power amplifier 53 is turned on, and when the pin CC2 is turned on high, the switch 55 is switched to the second state, i.e., the circuit between the pin SBU1 and the low noise amplifier 54 is turned on.
In the embodiment of the present disclosure, the first antenna body 51 is used for transmitting signals, and the second antenna body 52 is used for receiving signals. When the external antenna device is inserted into the terminal, the external antenna device enters a working state, and when the terminal is in a radio frequency signal sending time slot, a radio frequency signal is sent by the terminal, passes through a pin SBU1 of the Type-C interface 56, the switch 55 and the power amplifier 53, and is sent out by the first antenna body 51; when the terminal is in the time slot for receiving the radio frequency signal, the radio frequency signal enters from the second antenna body 52, passes through the low noise amplifier 54, the switch 55 and the SBU1 pin of the Type-C interface 56, and is transmitted to the terminal.
Alternatively, in order to save antenna cost, the first antenna body and the second antenna body may share one antenna. For example, as shown in fig. 6, fig. 6 shares one antenna body 61 with the first antenna body 51 and the second antenna body 52 in fig. 5, and introduces a circulator 62. A first end of the circulator 62 is connected to the antenna body 61, and the circulator 62 is further connected to a second end of the power amplifier and a second end of the low noise amplifier, respectively.
In another example, to enable the external antenna apparatus to adapt to both the terminal FDD mode of operation and the terminal TDD mode of operation, the radio frequency transmission circuit includes: the first transmission module and the second transmission module; the first end of the first transmission module is connected with the target pin, the second end of the first transmission module is connected with the antenna body, and the first transmission module is used for transmitting radio-frequency signals in a first transmission mode; the first end of the second transmission module is connected with the target pin, the second end of the second transmission module is connected with the antenna body, and the second transmission module is used for transmitting radio-frequency signals in a second transmission mode; wherein the first transmission mode and the second transmission mode are two different transmission modes.
In the embodiment of the present disclosure, the first transmission mode is adapted to the terminal FDD operation mode, and the second transmission mode is adapted to the terminal TDD operation mode. As shown in fig. 7, the antenna body includes: a first antenna body 701, a second antenna body 702, and a third antenna body 703; the first transmission module comprises: a first duplexer 704, a second duplexer 705, a first power amplifier 706, and a first low noise amplifier 707; the second transmission module includes: a second power amplifier 708, a second low noise amplifier 709, and a changeover switch 710; the radio frequency transmission circuit further includes: a third duplexer 711; a first terminal of the first duplexer 704 is connected to a first terminal of the third duplexer 711, a second terminal of the first duplexer 704 is connected to a first terminal of the first power amplifier 706, and a third terminal of the first duplexer 704 is connected to a first terminal of the first low noise amplifier 707; a first end of the second duplexer 705 is connected to the third antenna body 703, a second end of the second duplexer 705 is connected to a second end of the first power amplifier 706, and a third end of the second duplexer 705 is connected to a second end of the first low noise amplifier 707; the switch 710 is connected to a target pin SBU1 of the Type-C interface 712, and the switch 710 is further connected to a second terminal of the third duplexer 711 and a first terminal of the second power amplifier 708, respectively; a second end of the second power amplifier 708 is connected to the first antenna body 701, and a second end of the second low noise amplifier 709 is connected to the second antenna body 702; a first terminal of the second low noise amplifier 709 is connected to a third terminal of the third duplexer 711; in the first transmission mode, the path between the SBU1 of the target pin of the Type-C interface 712, the first power amplifier 706 and the third antenna body 703 is turned on, or the path between the SBU1 of the target pin of the Type-C interface 712, the first low noise amplifier 707 and the third antenna body 703 is turned on; in the second transmission mode, if the switch 710 is in the first state, the path between the SBU1 of the target pin of the Type-C interface 712, the second power amplifier 708 and the first antenna body 701 is turned on, and if the switch 710 is in the second state, the path between the SBU1 of the target pin of the Type-C interface 712, the second low noise amplifier 709 and the second antenna body 702 is turned on. In the embodiment of the present disclosure, the first low noise amplifier 707, the first power amplifier 706, the second low noise amplifier 709, the second power amplifier 708, and the switch 710 are respectively connected to a VBUS pin of the Type-C interface 712, and the VBUS pin provides a power source VCC.
The first state is a state of transmitting radio frequency signals, and the second state is a state of receiving radio frequency signals. Alternatively, the state of the switch 710 may be controlled by the CC1 pin or the CC2 pin of the Type-C interface 712. For example, as shown in fig. 7, when the state of the switch 710 is controlled by the CC2 pin of the Type-C interface 712, the switch 710 is connected to the CC2 pin of the Type-C interface 712, and in order to protect the circuit and prevent a short circuit caused by excessive current in the circuit, the CC2 pin of the Type-C interface 712 is grounded through a resistor (Rd)713, and the resistance of the resistor (Rd)713 is higher, for example, the resistance of the resistor (Rd)713 is more than two kohms.
In the embodiment of the present disclosure, the first antenna body 701 is used for transmitting signals in the terminal TDD operating mode, the second antenna body 702 is used for receiving signals in the terminal TDD operating mode, and the third antenna body 703 is used for transmitting and receiving signals in the terminal FDD operating mode.
Alternatively, in order to save antenna cost, the second antenna body and the third antenna body may share one antenna. For example, as shown in fig. 8, fig. 8 shares the second antenna body 702 and the third antenna body 703 in fig. 7 with one antenna body 801, and introduces one more duplexer 802. A first end of the duplexer 802 is connected to the antenna body 801, and the duplexer 802 is further connected to a first end of the second duplexer and a second end of the second low noise amplifier, respectively.
Optionally, in order to further save the antenna cost, the first antenna body, the second antenna body and the third antenna body may share one antenna. For example, as shown in fig. 9, fig. 9 shows that the first antenna body 701, the second antenna body 702, and the third antenna body 703 in fig. 7 share one antenna body 901, and one duplexer 902 and one circulator 903 are additionally included. A first end of the duplexer 902 is connected with the antenna body 901, a second end of the duplexer 902 is connected with a first end of the second duplexer, and a third end of the duplexer 902 is connected with a first end of the circulator 903; the circulator 903 is further connected to a second terminal of the second low noise amplifier and a second terminal of the second power amplifier, respectively.
In summary, according to the technical scheme provided by the embodiment of the present disclosure, the corresponding external antenna device is designed according to different operating modes and different structures of the terminal, and the external antenna device compatible with the FDD operating mode and the TDD operating mode is designed according to the technical scheme provided by the embodiment of the present disclosure, so that the application range of the external antenna device is expanded.
In addition, in the embodiment of the present disclosure, the duplexer is configured to isolate the transmitting radio frequency signal from the receiving radio frequency signal, so as to ensure that the transmitting and receiving of the radio frequency signals can be performed simultaneously; the circulator is used for enabling the radio frequency signal to be transmitted in a unidirectional ring shape; the power amplifier is used for increasing the power of the transmitted radio frequency signal and reducing noise interference in the transmission process of the radio frequency signal; the low noise amplifier is used for amplifying the filtering of the received radio frequency signal and preventing the useful radio frequency signal from being submerged by noise.
In another possible embodiment, in order to enable the Type-C interface to be normally used when being plugged in forward or backward, the external antenna apparatus further includes: a switch assembly; the first end of the radio frequency transmission circuit is connected with a switch assembly, the switch assembly is also connected with a first pin and a second pin of the Type-C interface respectively, and the first pin and the second pin are pins which are opposite in position and have the same function; a first control pin of the Type-C interface is connected with a first resistor (Rd1), a second control pin of the Type-C interface is connected with a second resistor (Rd2), and the second control pin is further connected with a switch assembly; wherein, the resistance value of the second resistor (Rd2) is larger than that of the first resistor (Rd 1); when the switch assembly is in a first state, a path between a first end of the radio frequency transmission circuit and the first pin is conducted; and when the switch assembly is in the second state, the path between the first end of the radio frequency transmission circuit and the second pin is conducted.
In the embodiment of the disclosure, the first pin and the second pin of the Type-C interface are the SBU1 pin and the SBU2 pin, or the SBU2 pin and the SBU1 pin, respectively. Under the condition that the radio-frequency signal of the terminal is transmitted through an SBU1 pin of a Type-C interface of the terminal, if a first pin of the Type-C interface of the external antenna device is an SBU1 pin and a second pin of the Type-C interface of the external antenna device is an SBU2 pin, the SBU1 pin of the Type-C interface is used for transmitting the radio-frequency signal when the external antenna device is inserted positively, and the SBU2 pin of the Type-C interface is used for transmitting the radio-frequency signal when the external antenna device is inserted reversely; if the first pin of the Type-C interface of the external antenna device is the SBU2 pin, and the first pin is the SBU1 pin, when the external antenna device is just inserted, the SBU2 pin of the Type-C interface is used for transmitting radio frequency signals, and when the external antenna device is reversely inserted, the SBU1 pin of the Type-C interface is used for transmitting radio frequency signals. Under the condition that the radio frequency signal of the terminal is transmitted through the SBU2 pin of the terminal Type-C interface, the pin setting of the external antenna device and the transmission of the radio frequency signal in the forward and reverse insertion states are similar to those under the condition that the radio frequency signal of the terminal is transmitted through the SBU1 pin of the terminal Type-C interface, and are not repeated herein.
In the embodiment of the present disclosure, the first control pin and the second control pin of the Type-C interface are the CC1 pin and the CC2 pin, or the CC2 pin and the CC1 pin, respectively. When the first control pin is a pin CC1 and the second control pin is a pin CC2, the switch assembly is controlled by a pin CC 2; when the first control pin is the pin CC2 and the second control pin is the pin CC1, the switch assembly is controlled by the pin CC 1.
It should be noted that, in the following embodiment of the present disclosure, a Type-C interface is taken as a Type-C female head, a Type-C male head is taken as an external antenna Type-C interface, a first pin of the Type-C male head is an SBU1 pin, a second pin is an SBU2 pin, a first control pin of the Type-C male head is a CC1 pin, a second control pin is a CC2 pin, and a radio frequency signal of a terminal is transmitted through an SBU1 pin of the Type-C female head.
In one example, as shown in fig. 10, in order to enable the external antenna device to adapt to the FDD operation mode of the terminal, the radio frequency transmission circuit includes: a first duplexer 101, a second duplexer 102, a power amplifier 103, and a low noise amplifier 104; the switch assembly includes a first switch assembly 105; a first end of the first switch component 105 is connected with a first pin SBU1 of the Type-C interface 106, a second end of the first switch component 105 is connected with a second pin SBU2 of the Type-C interface 106, and a third end of the first switch component 105 is connected with a first end of the first duplexer 101; the second end of the first duplexer 101 is connected to the first end of the power amplifier 103, and the third end of the first duplexer 101 is connected to the first end of the low noise amplifier 104; the first terminal of the second duplexer 102 is connected to the antenna body 107, the second terminal of the second duplexer 102 is connected to the second terminal of the power amplifier 103, and the third terminal of the second duplexer 102 is connected to the second terminal of the low noise amplifier 104. In the embodiment of the disclosure, the low noise amplifier 105, the power amplifier 103 and the first switching component 105 are respectively connected to a VBUS pin of the Type-C interface 106, and a power source VCC is provided by the VBUS pin.
In the disclosed embodiment, the first switch assembly 105 is configured to: when receiving a first control signal Vcontrol from a second control pin, switching to a conducting state between the first terminal of the first switch element 105 and the third terminal of the first switch element 105; when receiving the second control signal Vcontrol from the second control pin, the switch is switched to a conducting state between the second terminal of the first switch element 105 and the third terminal of the first switch element 105. Wherein, the second control pin is a CC2 pin. Alternatively, the first control signal Vcontrol may be high level, and the second control signal Vcontrol may be low level, which is not limited by the embodiment of the present disclosure.
In the embodiment of the disclosure, after the external antenna device is inserted into the terminal, the external antenna device enters a working state. When the external antenna device is plugged, the first switch device 105 receives the first control signal Vcontrol from the CC2 pin of the Type-C interface 106, at this time, the transmission rf signal is transmitted through the SBU1 pin of the Type-C interface 106, the first switch device 105, the power amplifier 103, and the antenna body 107, and the reception rf signal is transmitted through the antenna body 107, the low noise amplifier 104, the first switch device 105, and the SBU1 pin of the Type-C interface 106. When the external antenna device is plugged in reversely, the first switch element 105 receives the second control signal Vcontrol from the CC2 pin of the Type-C interface 106, at this time, the transmission rf signal is transmitted through the SBU2 pin of the Type-C interface 106, the first switch element 105, the power amplifier 103 and the antenna body 107, and the reception rf signal is transmitted through the antenna body 107, the low noise amplifier 104, the first switch element 105 and the SBU2 pin of the Type-C interface 106.
In another example, as shown in fig. 11, in order to enable the external antenna device to adapt to the TDD operation mode of the terminal, the antenna body includes: a first antenna body 111 and a second antenna body 112; the radio frequency transmission circuit includes: a power amplifier 113 and a low noise amplifier 114; the switch assembly includes a second switch assembly 115; a first end of the second switching element 115 is connected to the SBU1 pin of the first pin of the Type-C interface 116, a second end of the second switching element 115 is connected to the SBU2 pin of the second pin of the Type-C interface 116, a third end of the second switching element 115 is connected to the first end of the power amplifier 113, and a fourth end of the second switching element 115 is connected to the first end of the low noise amplifier 114; a second terminal of the power amplifier 113 is connected to the first antenna body 111, and a second terminal of the low noise amplifier 114 is connected to the second antenna body 112. In the embodiment of the present disclosure, the low noise amplifier 114, the power amplifier 113, and the second switch component 115 are respectively connected to a VBUS pin of the Type-C interface 116, and a power source VCC is provided by the VBUS pin.
In the disclosed embodiment, the second switch assembly 115 is configured to: when receiving a first control signal Vcontrol from a second control pin CC2 of the Type-C interface 116, switching to a state of conduction between the first terminal of the second switching element and the third terminal of the second switching element, and a state of conduction between the second terminal of the second switching element and the fourth terminal of the second switching element; when receiving a second control signal Vcontrol from the second control pin CC2 of the Type-C interface 116, the switch is switched to a state of conduction between the first terminal of the second switch element and the fourth terminal of the second switch element, and a state of conduction between the second terminal of the second switch element and the third terminal of the second switch element.
In the embodiment of the present disclosure, the first antenna body 111 is configured to transmit a radio frequency signal, and the second antenna body 112 is configured to receive the radio frequency signal. When the external antenna device is inserted into the terminal, the external antenna device enters a working state. When the external antenna device is plugged, the second switch element 115 receives the first control signal Vcontrol from the CC2 pin of the Type-C interface 116, and at this time, if the terminal is in the time slot for transmitting the radio frequency signal, the radio frequency signal is transmitted through the SBU1 pin of the Type-C interface 116, the second switch element 115, the power amplifier 113, and the first antenna body 111; if the terminal is in a slot for receiving radio frequency signals, the radio frequency signals are transmitted through the SBU1 pin of the Type-C interface 116, the second switch component 115, the low noise amplifier 114, and the second antenna body 112. When the external antenna device is plugged backwards, the second switch element 115 receives the second control signal Vcontrol from the CC2 pin of the Type-C interface 116, and at this time, if the terminal is in a radio frequency signal transmission timeslot, the radio frequency signal is transmitted through the SBU2 pin of the Type-C interface 116, the second switch element 115, the power amplifier 113, and the first antenna body 111; if the terminal is in a slot for receiving radio frequency signals, the radio frequency signals are transmitted through the SBU2 pin of the Type-C interface 116, the second switch component 115, the low noise amplifier 114, and the second antenna body 112.
Alternatively, in order to save antenna cost, the first antenna body and the second antenna body may share one antenna. For example, as shown in fig. 12, fig. 12 shares one antenna body 121 with the first antenna body 111 and the second antenna body 112 in fig. 11, and introduces a circulator 122. The first end of the circulator 112 is connected to the antenna body 121, and the circulator 122 is further connected to the second end of the power amplifier and the second end of the low noise amplifier, respectively.
In another example, to enable the external antenna apparatus to adapt to both the terminal FDD mode of operation and the terminal TDD mode of operation, the radio frequency transmission circuit includes: the first transmission module and the second transmission module; the antenna body includes: the antenna comprises a first antenna body, a second antenna body and a third antenna body; the first end of the first transmission module is connected with the first pin, the second end of the first transmission module is connected with the first antenna body, and the first transmission module is used for transmitting radio-frequency signals in a first transmission mode; the first end of the second transmission module is connected with the second pin, the second end of the second transmission module is connected with the second antenna body, the third end of the second transmission module is connected with the third antenna body, and the second transmission module is used for transmitting radio-frequency signals in a second transmission mode; wherein the first transmission mode and the second transmission mode are two different transmission modes.
In the embodiment of the present disclosure, the first transmission mode is adapted to the terminal FDD operation mode, and the second transmission mode is adapted to the terminal TDD operation mode. As shown in fig. 13, the first transmission module includes: a first duplexer 1301, a second duplexer 1302, a first power amplifier 1303, and a first low noise amplifier 1304; the second transmission module includes: a second power amplifier 1305 and a second low noise amplifier 1306; the radio frequency transmission circuit includes: a third duplexer 1307; the switching assembly includes a third switching assembly 1308; a first end of the first duplexer 1301 is connected to a first end of the third duplexer 1307; a second terminal of the first duplexer 1301 is connected to a first terminal of the first power amplifier 1303, and a third terminal of the first duplexer 1301 is connected to a first terminal of the first low noise amplifier 1304; a first end of the second duplexer 1302 is connected to the third antenna body 1309, a second end of the second duplexer 1302 is connected to a second end of the first power amplifier 1303, and a third end of the second duplexer 1302 is connected to a second end of the first low noise amplifier 1304; a first terminal of the third switching component 1308 is connected to the SBU1 pin of the first pin of the Type-C interface 1310, a second terminal of the third switching component 1308 is connected to the SBU2 pin of the second pin of the Type-C interface 1310, a third terminal of the third switching component 1308 is connected to the second terminal of the third duplexer 1307, and a fourth terminal of the third switching component 1308 is connected to the first terminal of the second power amplifier 1305; a second terminal of the second power amplifier 1305 is connected to the first antenna body 1311, and a second terminal of the second low noise amplifier 1306 is connected to the second antenna body 1312; the first terminal of the second low noise amplifier 1306 is connected to the third terminal of the third duplexer 1307. In the embodiment of the present disclosure, the first low noise amplifier 1304, the first power amplifier 1303, the second low noise amplifier 1306, the second power amplifier 1305 and the third switching component 1308 are respectively connected to a VBUS pin of the Type-C interface 1310, and the VBUS pin provides a power source VCC.
In an embodiment of the disclosure, the third switch component 1308 is configured to: in the first transmission mode or the second transmission mode, when receiving a first control signal Vcontrol from the second control pin CC2 of the Type-C interface 1310, switching to a state of conduction between the first terminal of the third switching component 1308 and the third terminal of the third switching component 1308, and a state of conduction between the second terminal of the third switching component 1308 and the fourth terminal of the third switching component 1308; when receiving a second control signal Vcontrol from the second control pin CC2 of the Type-C interface 1310, the switch is switched to a state of conduction between the first terminal of the third switching component 1308 and the fourth terminal of the third switching component 1308, and a state of conduction between the second terminal of the third switching component 1308 and the third terminal of the third switching component 1308.
In the embodiment of the disclosure, after the external antenna device is inserted into the terminal, the external antenna device enters a working state. When the external antenna device is plugged, the third switch component 1308 receives a first control signal Vcontrol from the CC2 pin of the Type-C interface 1310, and at this time, when the terminal is in the FDD operating mode, the radio frequency signal is transmitted sequentially through the third antenna body 1309, the first low noise amplifier 1304, the switch 1308 and the SBU1 pin of the Type-C interface 1310, or sequentially through the SBU1 pin of the Type-C interface 1310, the switch 1308, the first power amplifier 1303 and the third antenna body 1309; under the condition that the terminal is in the TDD operating mode, if the terminal is in a radio frequency signal transmission timeslot, the radio frequency signal is transmitted sequentially through the SBU1 pin of the Type-C interface 1310, the switch 1308, the second power amplifier 1305, and the first antenna body 1312, and if the terminal is in a radio frequency signal reception timeslot, the radio frequency signal is transmitted sequentially through the second antenna body 1311, the second low noise amplifier 1306, the switch 1308, and the SBU1 pin of the Type-C interface 1310. When the external antenna device is plugged reversely, the third switch component 1308 receives the second control signal Vcontrol from the CC2 pin of the Type-C interface 1310, and at this time, when the terminal is in the FDD operating mode, the radio frequency signal is transmitted sequentially through the third antenna body 1309, the first low noise amplifier 1304, the switch 1308 and the SBU2 pin of the Type-C interface 1310, or sequentially through the SBU2 pin of the Type-C interface 1310, the switch 1308, the first power amplifier 1303 and the third antenna body 1309; under the condition that the terminal is in the TDD operating mode, if the terminal is in a radio frequency signal transmission timeslot, the radio frequency signal is transmitted sequentially through the SBU2 pin of the Type-C interface 1310, the switch 1308, the second power amplifier 1305, and the first antenna body 1312, and if the terminal is in a radio frequency signal reception timeslot, the radio frequency signal is transmitted sequentially through the second antenna body 1311, the second low noise amplifier 1306, the switch 1308, and the SBU2 pin of the Type-C interface 1310.
In the embodiment of the present disclosure, the first antenna body 1312 is used for transmitting signals in the terminal TDD operating mode, the second antenna body 1311 is used for receiving signals in the terminal TDD operating mode, and the third antenna body 1309 is used for transmitting and receiving signals in the terminal FDD operating mode.
Alternatively, in order to save antenna cost, the second antenna body and the third antenna body may share one antenna. For example, as shown in fig. 14, fig. 14 shares the second antenna body 1311 and the third antenna body 1309 of fig. 13 with one antenna body 1401, and introduces one more duplexer 1402. A first terminal of the duplexer 1402 is connected to the antenna body 1401, and the duplexer 1402 is further connected to a first terminal of a second duplexer and a second terminal of a second low noise amplifier, respectively.
Optionally, in order to further save the antenna cost, the first antenna body, the second antenna body and the third antenna body may share one antenna. For example, as shown in fig. 15, fig. 15 shares one antenna body 1501 with the first antenna body 1312, the second antenna body 1311, and the third antenna body 1309 in fig. 13, and introduces one duplexer 1502 and one circulator 1503 more. A first end of the duplexer 1502 is connected to the antenna body 1501, a second end of the duplexer 1502 is connected to a first end of the second duplexer, and a third end of the duplexer 1502 is connected to a first end of the circulator 1503; the circulator 1503 is also connected to a second terminal of the second low noise amplifier and a second terminal of the second power amplifier, respectively.
To sum up, the technical scheme provided by the embodiment of the present disclosure provides convenience for a user to use the external antenna device by designing the external antenna device in the forward insertion state and the backward insertion state of the compatible Type-C interface, and also in the FDD working mode and the TDD working mode of the compatible terminal is designed by the technical scheme provided by the embodiment of the present disclosure, thereby greatly expanding the application range of the external antenna device.
In addition, in the embodiment of the present disclosure, the duplexer is configured to isolate the transmitting radio frequency signal from the receiving radio frequency signal, so as to ensure that the transmitting and receiving of the radio frequency signals can be performed simultaneously; the circulator is used for enabling the radio frequency signal to be transmitted in a unidirectional ring shape; the power amplifier is used for increasing the power of the transmitted radio frequency signal and reducing noise interference in the transmission process of the radio frequency signal; the low noise amplifier is used for amplifying the filtering of the received radio frequency signal and preventing the useful radio frequency signal from being submerged by noise.
It should be noted that, in the embodiment of the present disclosure, the Type-C interface is taken as a Type-C male connector to describe the internal line connection of the external antenna device, but this does not constitute a limitation to the present disclosure, and after considering the solution of the present disclosure, a person skilled in the art will easily think of the internal line connection of the external antenna device when the Type-C interface is a Type-C female connector, but all of them fall within the protection scope of the present disclosure.
Fig. 18 is a flowchart illustrating a control method for an external antenna device according to an embodiment of the present disclosure. The method comprises the following steps (steps 1801-1803):
in step 1801, when it is detected that the external antenna device is inserted through the Type-C interface, an insertion state of the external antenna device is detected, where the insertion state includes a forward insertion state and a reverse insertion state.
The forward insertion state refers to that the CC1 pin of the terminal Type-C interface is connected with the CC1 pin of the external antenna device Type-C interface, and the CC2 pin of the terminal Type-C interface is connected with the CC2 pin of the external antenna device Type-C interface. The anti-plug state means that the CC1 pin of terminal Type-C interface links to each other with the CC2 pin of external antenna device Type-C interface, and the CC2 pin of terminal Type-C interface links to each other with the CC1 pin of external antenna device Type-C interface.
In the embodiment of the present disclosure, the CC1 pin and the CC2 pin of the terminal Type-C interface may form a detection circuit, and the detection circuit may be used to detect the insertion state of the external antenna device. For example, when the CC1 pin of the Type-C interface of the external antenna apparatus is connected to a low resistor and the CC2 pin is connected to a high resistor, if the detection circuit detects that the CC1 pin of the terminal Type-C interface is a low resistor and the CC2 pin is a high resistor, it is determined that the external antenna apparatus is in a forward insertion state; and if the detection circuit detects that the pin CC1 of the terminal Type-C interface is high-resistance and the pin CC2 is low-resistance, the external antenna device is confirmed to be in a reverse insertion state. For another example, when the CC1 pin of the Type-C interface of the external antenna apparatus is connected to a high resistor and the CC2 pin is connected to a low resistor, if the detection circuit detects that the CC1 pin of the terminal Type-C interface is a low resistor and the CC2 pin is a high resistor, it is determined that the external antenna apparatus is in a reverse insertion state; and if the detection circuit detects that the pin CC1 of the terminal Type-C interface is high-resistance and the pin CC2 is low-resistance, the external antenna device is confirmed to be in a positive insertion state.
In step 1802, a control signal for controlling the external antenna device to conduct a transmission path of the rf signal is generated according to the insertion status.
In the embodiment of the present disclosure, the control signal may be represented by a high level or a low level. For example, the control signal may be high or low.
Optionally, if the insertion state is a positive insertion state, generating a first control signal; if the insertion state is a reverse insertion state, generating a second control signal; wherein the first control signal and the second control signal are two different control signals. For example, when a low resistor is connected to the CC1 pin of the Type-C interface of the external antenna device and a high resistor is connected to the CC2 pin, if the terminal detection circuit detects that the external antenna device is in the forward-insertion state, a high level is applied to the CC2 pin of the external antenna device; if the terminal detection circuit detects that the external antenna device is in the reverse-plug state, a low level is applied to the pin CC2 of the external antenna device. For another example, when the CC1 pin of the Type-C interface of the external antenna device is connected to a high resistor and the CC2 pin is connected to a low resistor, if the terminal detection circuit detects that the external antenna device is in a forward-insertion state, a high level is applied to the CC1 pin of the external antenna device; if the terminal detection circuit detects that the external antenna device is in the reverse-plug state, a low level is applied to the pin CC1 of the external antenna device.
Illustratively, in the FDD operating mode, the first control signal is used to control the switch component of the external antenna device to be connected to the first pin of the external antenna device, and the second control signal is used to control the switch component of the external antenna device to be connected to the second pin of the external antenna device. For example, when the radio frequency signal of the terminal is connected to the SBU1 pin of the Type-C interface of the terminal, and the first pin of the external antenna device is the SBU1 pin of the Type-C interface, and the second pin of the external antenna device is the SBU2 pin of the Type-C interface, the first control signal is used for controlling the SBU1 pin of the Type-C interface to transmit the radio frequency signal, and the second control signal is used for controlling the SBU2 pin of the Type-C interface to transmit the radio frequency signal.
In an exemplary TDD operation mode, the first control signal is used to control conduction between the first terminal and the third terminal, and conduction between the second terminal and the fourth terminal of the switch component of the external antenna device; the second control signal is used for controlling the conduction between the first end and the fourth end of the switch component of the external antenna device and the conduction between the second end and the third end. For example, when the radio frequency signal of the terminal is connected to the SBU1 pin of the Type-C interface of the terminal, the first control signal is used to control the SBU1 pin of the Type-C interface to transmit the radio frequency signal, and the second control signal is used to control the SBU2 pin of the Type-C interface to transmit the radio frequency signal.
In step 1803, a control signal is sent to the external antenna device.
In the embodiment of the present disclosure, the terminal sends the control signal to the external antenna device through the wire connected to the switch of the external antenna device through the control pin of the terminal. For example, the terminal uses the CC2 pin of the terminal Type-C interface as a control pin to connect with the switch of the external antenna device, so that the wire between the CC2 pin and the switch transmits the control signal.
In a possible implementation manner, in order to save the use of an external antenna device, and prevent the transmission load caused by the overlarge radio frequency signal received by the terminal. The method further comprises the following steps: detecting the strength of a radio frequency signal transmitted by an external antenna device; if the intensity is larger than a preset threshold value, controlling the external antenna device to be switched from a working state to a non-working state; and controlling the built-in antenna to be switched from a non-working state to a working state.
In the disclosed embodiment, the strength of the radio frequency signal can be detected by an analog-to-digital converter of the terminal receiver. And the preset threshold value in the embodiment of the present disclosure can be flexibly set according to actual applications. For example, if the terminal is located in an area with a poor signal, the preset threshold may be set to be larger; if the terminal is located in an area with a better signal, the preset threshold may be set to be smaller, which is not limited in the embodiment of the present disclosure.
In summary, according to the technical scheme provided by the embodiment of the present disclosure, by detecting the insertion state of the external antenna device, different control signals are generated according to the insertion state and sent to the external antenna device, so that effective control over the external antenna device is achieved, and the interaction efficiency between the external antenna device and the terminal is improved. In addition, in the embodiment of the present disclosure, the working state of the external antenna device is determined according to the strength of the radio frequency signal, which is beneficial to saving the use of the external antenna device and preventing the transmission burden caused by the overlarge radio frequency signal received by the terminal.
The following are embodiments of the disclosed apparatus that may be used to perform embodiments of the disclosed methods. For details not disclosed in the embodiments of the apparatus of the present disclosure, refer to the embodiments of the method of the present disclosure.
Fig. 19 is a block diagram illustrating an external antenna device according to an exemplary embodiment. The device has the functions of realizing the method examples, and the functions can be realized by hardware or by hardware executing corresponding software. The apparatus may be the terminal described above, or may be provided in the terminal. As shown in fig. 19, the apparatus 1900 may include: a status detection module 1910, a signal generation module 1920, and a signal transmission module 1930.
The state detection module 1910 is configured to detect an insertion state of the external antenna device when it is detected that the external antenna device is inserted through a Type-C interface, where the insertion state includes a forward insertion state and a reverse insertion state.
A signal generating module 1920 configured to generate a control signal according to the insertion status, wherein the control signal is used to control the external antenna device to conduct a transmission path of a radio frequency signal.
A signal transmitting module 1930 configured to transmit the control signal to the external antenna device.
In some possible designs, as shown in fig. 20, the signal generation module 1920 further comprises: a first signal generation submodule 1921 configured to generate a first control signal when the insertion state is the positive insertion state; a second signal generation submodule 1922 configured to generate a second control signal when the insertion state is the reverse insertion state; wherein the first control signal and the second control signal are two different control signals.
In some possible designs, in case of FDD operation mode, the first control signal is used to control the switch component of the external antenna apparatus to be connected to the first pin of the external antenna apparatus, and the second control signal is used to control the switch component of the external antenna apparatus to be connected to the second pin of the external antenna apparatus.
In some possible designs, in the TDD operating mode, the first control signal is used to control conduction between the first terminal and the third terminal, and conduction between the second terminal and the fourth terminal of the switch component of the external antenna device; the second control signal is used for controlling the conduction between the first end and the fourth end of the switch component of the external antenna device and the conduction between the second end and the third end.
In some possible designs, as shown in fig. 20, the apparatus 1900 further comprises: a signal detection module 1940 configured to detect the strength of the radio frequency signal transmitted through the external antenna device; a state switching module 1950, configured to control the external antenna device to switch from an operating state to a non-operating state when the strength is greater than a preset threshold; the state switching module 1950 is further configured to control the internal antenna to switch from a non-operating state to an operating state.
In summary, according to the technical scheme provided by the embodiment of the present disclosure, by detecting the insertion state of the external antenna device, different control signals are generated according to the insertion state and sent to the external antenna device, so that effective control over the external antenna device is achieved, and the interaction efficiency between the external antenna device and the terminal is improved. In addition, in the embodiment of the present disclosure, the working state of the external antenna device is determined according to the strength of the radio frequency signal, which is beneficial to saving the use of the external antenna device and preventing the transmission burden caused by the overlarge radio frequency signal received by the terminal.
An exemplary embodiment of the present disclosure also provides a control device of an external antenna device, the device including: a processor; a memory for storing executable instructions of the processor; wherein the processor is configured to:
when the external antenna device is detected to be inserted through the Type-C interface, detecting the insertion state of the external antenna device, wherein the insertion state comprises a forward insertion state and a reverse insertion state;
generating a control signal according to the insertion state, wherein the control signal is used for controlling the external antenna device to conduct a transmission channel of a radio frequency signal;
and sending the control signal to the external antenna device.
Optionally, the processor is further configured to: when the insertion state is the positive insertion state, generating a first control signal; when the insertion state is the reverse insertion state, generating a second control signal; wherein the first control signal and the second control signal are two different control signals.
Optionally, in the FDD operating mode, the first control signal is used to control the switch component of the external antenna device to be connected to the first pin of the external antenna device, and the second control signal is used to control the switch component of the external antenna device to be connected to the second pin of the external antenna device.
Optionally, in a TDD operating mode, the first control signal is used to control conduction between a first terminal and a third terminal, and conduction between a second terminal and a fourth terminal of a switch assembly of the external antenna device; the second control signal is used for controlling the conduction between the first end and the fourth end of the switch component of the external antenna device and the conduction between the second end and the third end.
Optionally, the processor is further configured to: detecting the strength of a radio frequency signal transmitted by the external antenna device; when the intensity is greater than a preset threshold value, controlling the external antenna device to be switched from a working state to a non-working state; and controlling the built-in antenna to be switched from a non-working state to a working state.
Fig. 21 is a block diagram illustrating an apparatus 2100, according to an example embodiment. For example, the apparatus 2100 may be a mobile phone, a tablet Computer, a wearable device, a music playing device, a multimedia player, a PC (Personal Computer), a vehicle terminal, a fitness device, or the like.
Referring to fig. 21, the apparatus 2100 may include one or more of the following components: a processing component 2102, a memory 2104, a power component 2106, a multimedia component 2108, an audio component 2110, an input/output (I/O) interface 2112, a sensor component 2114, and a communications component 2116.
The processing component 2102 generally controls overall operation of the device 2100, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 2102 may include one or more processors 2120 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 2102 may include one or more modules that facilitate interaction between the processing component 2102 and other components. For example, the processing component 2102 may include a multimedia module to facilitate interaction between the multimedia component 2108 and the processing component 2102.
The memory 2104 is configured to store various types of data to support operations at the apparatus 2100. Examples of such data include instructions for any application or method operating on device 2100, contact data, phone book data, messages, pictures, videos, and so forth. The memory 2104 may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The power supply component 2106 provides power to the various components of the device 2100. The power components 2106 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 2100.
The multimedia component 2108 includes a screen that provides an output interface between the device 2100 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 2108 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 2100 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 2110 is configured to output and/or input an audio signal. For example, the audio component 2110 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 2100 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may further be stored in the memory 2104 or transmitted via the communication component 2116. In some embodiments, the audio component 2110 further comprises a speaker for outputting audio signals.
The I/O interface 2112 provides an interface between the processing assembly 2102 and a peripheral interface module, which may be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor component 2114 includes one or more sensors for providing status assessment of various aspects of the apparatus 2100. For example, sensor assembly 2114 may detect the open/closed state of device 2100, the relative positioning of components such as a display and keypad of device 2100, the change in position of device 2100 or a component of device 2100, the presence or absence of user contact with device 2100, the orientation or acceleration/deceleration of device 2100, and the change in temperature of device 2100. The sensor assembly 2114 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 2114 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 2114 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 2116 is configured to facilitate communications between the apparatus 2100 and other devices in a wired or wireless manner. The device 2100 may access a wireless network based on a communication standard, such as Wi-Fi, 2G, 3G, 4G, 5G, or a combination thereof. In an exemplary embodiment, the communication component 2116 receives a broadcast signal or broadcast associated information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 2116 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 2100 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described control method of the external antenna apparatus.
In an exemplary embodiment, a non-transitory computer readable storage medium including a computer program, such as the memory 2104 including a computer program, executable by the processor 2120 of the apparatus 2100 to perform the control method of the external antenna apparatus is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
It should be understood that references to a and B being connected/connected herein may refer to either a direct connection/connection between a and B or an indirect connection/connection between a and B. Reference herein to "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (28)

1. An external antenna device, comprising: the antenna comprises a Type-C interface, a radio frequency transmission circuit and an antenna body;
the Type-C interface is connected with the first end of the radio frequency transmission circuit, and the second end of the radio frequency transmission circuit is connected with the antenna body.
2. The apparatus of claim 1, wherein the first terminal of the rf transmission circuit is connected to a target pin of the Type-C interface, and the target pin is a pin of the Type-C interface.
3. The apparatus of claim 2, wherein the radio frequency transmission circuit comprises: a first duplexer, a second duplexer, a power amplifier, and a low noise amplifier;
a first end of the first duplexer is connected with the target pin, a second end of the first duplexer is connected with a first end of the power amplifier, and a third end of the first duplexer is connected with a first end of the low-noise amplifier;
the first end of the second duplexer is connected with the antenna body, the second end of the second duplexer is connected with the second end of the power amplifier, and the third end of the second duplexer is connected with the second end of the low-noise amplifier.
4. The apparatus of claim 2, wherein the antenna body comprises: a first antenna body and a second antenna body; the radio frequency transmission circuit includes: a power amplifier, a low noise amplifier and a switch;
the change-over switch is connected with the target pin, and the change-over switch is also connected with the first end of the power amplifier and the first end of the low-noise amplifier respectively; the second end of the power amplifier is connected with the first antenna body, and the second end of the low-noise amplifier is connected with the second antenna body;
when the change-over switch is in a first state, a path among the target pin, the power amplifier and the first antenna body is conducted;
and when the change-over switch is in a second state, the target pin, the low-noise amplifier and the second antenna body are communicated.
5. The apparatus of claim 2, wherein the radio frequency transmission circuit comprises: the first transmission module and the second transmission module;
the first end of the first transmission module is connected with the target pin, the second end of the first transmission module is connected with the antenna body, and the first transmission module is used for transmitting radio-frequency signals in a first transmission mode;
the first end of the second transmission module is connected with the target pin, the second end of the second transmission module is connected with the antenna body, and the second transmission module is used for transmitting radio-frequency signals in a second transmission mode;
wherein the first transmission mode and the second transmission mode are two different transmission modes.
6. The apparatus of claim 5, wherein the antenna body comprises: the antenna comprises a first antenna body, a second antenna body and a third antenna body; the first transmission module comprises: a first duplexer, a second duplexer, a first power amplifier and a first low noise amplifier; the second transmission module includes: the second power amplifier, the second low noise amplifier and the change-over switch; the radio frequency transmission circuit further includes: a third duplexer;
the first end of the first duplexer is connected with the first end of the third duplexer, the second end of the first duplexer is connected with the first end of the first power amplifier, and the third end of the first duplexer is connected with the first end of the first low-noise amplifier;
a first end of the second duplexer is connected with the third antenna body, a second end of the second duplexer is connected with a second end of the first power amplifier, and a third end of the second duplexer is connected with a second end of the first low noise amplifier;
the change-over switch is connected with the target pin, and the change-over switch is also connected with the second end of the third duplexer and the first end of the second power amplifier respectively; the second end of the second power amplifier is connected with the first antenna body, and the second end of the second low-noise amplifier is connected with the second antenna body; the first end of the second low-noise amplifier is connected with the third end of the third duplexer;
in the first transmission mode, a path between the target pin, the first power amplifier and the third antenna body is conducted, or a path between the target pin, the first low noise amplifier and the third antenna body is conducted;
in the second transmission mode, if the switch is in the first state, the path between the target pin, the second power amplifier and the first antenna body is conducted, and if the switch is in the second state, the path between the target pin, the second low noise amplifier and the second antenna body is conducted.
7. The apparatus of claim 1, further comprising: a switch assembly;
the first end of the radio frequency transmission circuit is connected with the switch assembly, the switch assembly is further connected with a first pin and a second pin of the Type-C interface respectively, and the first pin and the second pin are pins which are opposite in position and have the same function; a first control pin of the Type-C interface is connected with a first resistor, a second control pin of the Type-C interface is connected with a second resistor, and the second control pin is also connected with the switch assembly; the resistance value of the second resistor is larger than that of the first resistor;
when the switch assembly is in a first state, a path between a first end of the radio frequency transmission circuit and the first pin is conducted;
and when the switch assembly is in a second state, a path between the first end of the radio frequency transmission circuit and the second pin is conducted.
8. The apparatus of claim 7, wherein the radio frequency transmission circuit comprises: a first duplexer, a second duplexer, a power amplifier, and a low noise amplifier;
the switch assembly comprises a first switch assembly;
a first end of the first switch assembly is connected with the first pin, a second end of the first switch assembly is connected with the second pin, and a third end of the first switch assembly is connected with a first end of the first duplexer;
the second end of the first duplexer is connected with the first end of the power amplifier, and the third end of the first duplexer is connected with the first end of the low-noise amplifier;
the first end of the second duplexer is connected with the antenna body, the second end of the second duplexer is connected with the second end of the power amplifier, and the third end of the second duplexer is connected with the second end of the low-noise amplifier.
9. The apparatus of claim 8, wherein the first switch assembly is to:
when receiving a first control signal from the second control pin, switching to a conducting state between the first end of the first switch component and the third end of the first switch component;
and when receiving a second control signal from the second control pin, switching to a conducting state between the second end of the first switch component and the third end of the first switch component.
10. The apparatus of claim 7, wherein the antenna body comprises: a first antenna body and a second antenna body; the radio frequency transmission circuit includes: a power amplifier and a low noise amplifier;
the switch assembly comprises a second switch assembly;
a first end of the second switch assembly is connected with the first pin, a second end of the second switch assembly is connected with the second pin, a third end of the second switch assembly is connected with the first end of the power amplifier, and a fourth end of the second switch assembly is connected with the first end of the low noise amplifier;
the second end of the power amplifier is connected with the first antenna body, and the second end of the low-noise amplifier is connected with the second antenna body.
11. The apparatus of claim 10, wherein the second switch assembly is configured to:
when receiving a first control signal from the second control pin, switching to a state of conduction between the first end of the second switch component and the third end of the second switch component, and a state of conduction between the second end of the second switch component and the fourth end of the second switch component;
when receiving a second control signal from the second control pin, switching to a state of conduction between the first end of the second switch component and the fourth end of the second switch component, and a state of conduction between the second end of the second switch component and the third end of the second switch component.
12. The apparatus of claim 7, wherein the radio frequency transmission circuit comprises: the first transmission module and the second transmission module; the antenna body includes: the antenna comprises a first antenna body, a second antenna body and a third antenna body;
the first end of the first transmission module is connected with the first pin, the second end of the first transmission module is connected with the first antenna body, and the first transmission module is used for transmitting radio frequency signals in a first transmission mode;
a first end of the second transmission module is connected with the second pin, a second end of the second transmission module is connected with the second antenna body, a third end of the second transmission module is connected with the third antenna body, and the second transmission module is used for transmitting radio-frequency signals in a second transmission mode;
wherein the first transmission mode and the second transmission mode are two different transmission modes.
13. The apparatus of claim 12, wherein the first transmission module comprises: a first duplexer, a second duplexer, a first power amplifier and a first low noise amplifier; the second transmission module includes: a second power amplifier and a second low noise amplifier; the radio frequency transmission circuit includes: a third duplexer;
the switch assembly comprises a third switch assembly;
the first end of the first duplexer is connected with the first end of the third duplexer; the second end of the first duplexer is connected with the first end of the first power amplifier, and the third end of the first duplexer is connected with the first end of the first low-noise amplifier;
a first end of the second duplexer is connected with the third antenna body, a second end of the second duplexer is connected with a second end of the first power amplifier, and a third end of the second duplexer is connected with a second end of the first low noise amplifier;
a first end of the third switch component is connected with the first pin, a second end of the third switch component is connected with the second pin, a third end of the third switch component is connected with a second end of the third duplexer, and a fourth end of the third switch component is connected with a first end of the second power amplifier;
the second end of the second power amplifier is connected with the first antenna body, and the second end of the second low-noise amplifier is connected with the second antenna body; and the first end of the second low-noise amplifier is connected with the third end of the third duplexer.
14. The apparatus of claim 13, wherein the third switch assembly is to:
in the first transmission mode or the second transmission mode, when receiving a first control signal from the second control pin, switching to a state of conduction between the first terminal of the third switch component and the third terminal of the third switch component, and a state of conduction between the second terminal of the third switch component and the fourth terminal of the third switch component;
when receiving a second control signal from the second control pin, the switch circuit is switched to a state of conduction between the first end of the third switch component and the fourth end of the third switch component, and a state of conduction between the second end of the third switch component and the third end of the third switch component.
15. The apparatus according to any one of claims 1 to 14, and characterized in that said Type-C interface comprises:
the tongue plate is provided with an upper tongue plate surface and a lower tongue plate surface which are parallel and opposite;
the first row of pins are arranged on the upper tongue plate surface;
the second row of pins are arranged on the lower tongue plate surface;
and the metal grounding surface is arranged between the upper tongue plate surface and the lower tongue plate surface.
16. The apparatus of claim 15, wherein the metal ground plane is parallel and equal in size to the upper and lower tongue plate surfaces;
the thickness of the metal grounding surface is smaller than that of the tongue plate.
17. A method for controlling an external antenna device, the method comprising:
when the external antenna device is detected to be inserted through the Type-C interface, detecting the insertion state of the external antenna device, wherein the insertion state comprises a forward insertion state and a reverse insertion state;
generating a control signal according to the insertion state, wherein the control signal is used for controlling the external antenna device to conduct a transmission channel of a radio frequency signal;
and sending the control signal to the external antenna device.
18. The method of claim 17, wherein generating a control signal based on the insertion status comprises:
if the insertion state is the positive insertion state, generating a first control signal;
if the insertion state is the reverse insertion state, generating a second control signal;
wherein the first control signal and the second control signal are two different control signals.
19. The method of claim 18, wherein the first control signal is used to control the switch component of the external antenna device to be connected to the first pin of the external antenna device, and the second control signal is used to control the switch component of the external antenna device to be connected to the second pin of the external antenna device in case of FDD mode of operation.
20. The method of claim 18, wherein the first control signal is used to control conduction between the first terminal and the third terminal and conduction between the second terminal and the fourth terminal of the switch component of the external antenna device in the TDD mode of operation; the second control signal is used for controlling the conduction between the first end and the fourth end of the switch component of the external antenna device and the conduction between the second end and the third end.
21. The method of any one of claims 17 to 20, further comprising:
detecting the strength of a radio frequency signal transmitted by the external antenna device;
if the intensity is greater than a preset threshold value, controlling the external antenna device to be switched from a working state to a non-working state;
and controlling the built-in antenna to be switched from a non-working state to a working state.
22. A control device for an external antenna device, the device comprising:
the external antenna device comprises a state detection module, a state detection module and a state detection module, wherein the state detection module is configured to detect the insertion state of the external antenna device when detecting that the external antenna device is inserted through a Type-C interface, and the insertion state comprises a forward insertion state and a reverse insertion state;
the signal generation module is configured to generate a control signal according to the insertion state, wherein the control signal is used for controlling the external antenna device to conduct a transmission path of a radio frequency signal;
a signal transmitting module configured to transmit the control signal to the external antenna device.
23. The apparatus of claim 22, wherein the signal generation module further comprises:
a first signal generation submodule configured to generate a first control signal when the insertion state is the positive insertion state;
a second signal generation submodule configured to generate a second control signal when the insertion state is the reverse insertion state;
wherein the first control signal and the second control signal are two different control signals.
24. The apparatus as claimed in claim 23, wherein in case of FDD mode of operation, the first control signal is used to control the switch component of the external antenna apparatus to be connected to the first pin of the external antenna apparatus, and the second control signal is used to control the switch component of the external antenna apparatus to be connected to the second pin of the external antenna apparatus.
25. The apparatus of claim 23, wherein in the TDD mode of operation, the first control signal is used to control conduction between the first terminal and the third terminal, and conduction between the second terminal and the fourth terminal of the switch component of the external antenna apparatus; the second control signal is used for controlling the conduction between the first end and the fourth end of the switch component of the external antenna device and the conduction between the second end and the third end.
26. The apparatus of any one of claims 22 to 25, further comprising:
a signal detection module configured to detect the strength of the radio frequency signal transmitted through the external antenna device;
the state switching module is configured to control the external antenna device to be switched from a working state to a non-working state when the strength is greater than a preset threshold;
the state switching module is further configured to control the built-in antenna to be switched from a non-working state to a working state.
27. A control device for an external antenna device, the device comprising:
a processor;
a memory for storing executable instructions of the processor;
wherein the processor is configured to:
when the external antenna device is detected to be inserted through the Type-C interface, detecting the insertion state of the external antenna device, wherein the insertion state comprises a forward insertion state and a reverse insertion state;
generating a control signal according to the insertion state, wherein the control signal is used for controlling the external antenna device to conduct a transmission channel of a radio frequency signal;
and sending the control signal to the external antenna device.
28. A non-transitory computer readable storage medium, having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the method according to any one of claims 17 to 21.
CN201910872346.3A 2019-09-16 2019-09-16 External antenna device, control method and device thereof and storage medium Active CN112510345B (en)

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