CN112510345B - 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
CN112510345B
CN112510345B CN201910872346.3A CN201910872346A CN112510345B CN 112510345 B CN112510345 B CN 112510345B CN 201910872346 A CN201910872346 A CN 201910872346A CN 112510345 B CN112510345 B CN 112510345B
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China
Prior art keywords
pin
duplexer
antenna device
external antenna
radio frequency
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Active
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CN201910872346.3A
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Chinese (zh)
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CN112510345A (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
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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

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)

Abstract

The disclosure relates to an external antenna device, a control method and device thereof and a storage medium, and belongs to the technical field of terminals. The external antenna device includes: type-C interface, radio frequency transmission circuit and 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. The Type-C interface, the radio frequency transmission circuit and the antenna body are combined together to form the external antenna device, and the external antenna device can be inserted into a terminal for use. When the communication quality of the terminal is poor, the external antenna device can be used for enhancing the signal strength, so that the communication quality of the terminal is improved.

Description

External antenna device, control method and device thereof and storage medium
Technical Field
The embodiment of the disclosure relates to the technical field of terminals, in particular to an external antenna device, a control method and device thereof and a storage medium.
Background
At present, mobile terminals such as mobile phones and the like all communicate with the outside through an antenna. As mobile terminals such as mobile phones are designed to be thinner and lighter, antennas of the mobile phones are also smaller and smaller.
In the related art, as the antenna of the mobile phone is smaller, the antenna environment of the mobile phone is worse. In the related art, when a mobile phone is in communication, the antenna loss is up to 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 device thereof, and a storage medium. The technical scheme is as follows:
according to a first aspect of embodiments of the present disclosure, there is provided an external antenna device, the device comprising: type-C interface, radio frequency transmission circuit and 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, and 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; the first end of the first duplexer is connected with the target pin, 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 antenna body includes: 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 is also respectively connected with the first end of the power amplifier and 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; when the change-over switch is in a first state, a passage 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 paths among the target pin, the low noise amplifier and the second antenna body are conducted.
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 includes: the antenna comprises a first antenna body, a second antenna body and a third antenna body; 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, a second low noise amplifier, and a switch; the radio frequency transmission circuit further includes: a third diplexer; 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; the first end of the second duplexer is connected with the third antenna body, the second end of the second duplexer is connected with the second end of the first power amplifier, and the third end of the second duplexer is connected with the second end of the first low noise amplifier; the change-over switch is connected with the target pin and is also respectively connected with the second end of the third duplexer and the 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; 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 passage among the target pin, the first power amplifier and the third antenna body is conducted, or a passage among 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 paths among the target pin, the second power amplifier and the first antenna body are conducted, and if the switch is in the second state, the paths among the target pin, the second low noise amplifier and the second antenna body are conducted.
Optionally, the apparatus further comprises: a switch assembly; the first end of the radio frequency transmission circuit is connected with the switch assembly, and the switch assembly is also connected with a first pin and a second pin of the Type-C interface respectively, wherein the first pin and the second pin are two pins which are opposite in position and have the same effect; the first control pin of the Type-C interface is connected with a first resistor, the 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; wherein the resistance of the second resistor is larger than that of the first resistor; when the switch assembly is in a first state, a first end of the radio frequency transmission circuit is conducted with a passage between the first pin; and in a second state of the switch assembly, a passage 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 includes a first switch assembly; the first end of the first switch component is connected with the first pin, the second end of the first switch component is connected with the second pin, and the third end of the first switch component is connected with the 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 state of conduction 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 state of conduction between the second end of the first switch component and the third end of the first switch component.
Optionally, the antenna body includes: 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 includes a second switch assembly; the first end of the second switch component is connected with the first pin, the second end of the second switch component is connected with the second pin, the third end of the second switch component is connected with the first end of the power amplifier, and the fourth end of the second switch component 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; and 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; 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.
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 diplexer; the switch assembly includes 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; the first end of the second duplexer is connected with the third antenna body, the second end of the second duplexer is connected with the second end of the first power amplifier, and the third end of the second duplexer is connected with the second end of the first low noise amplifier; the first end of the third switch component is connected with the first pin, the second end of the third switch component is connected with the second pin, the third end of the third switch component is connected with the second end of the third duplexer, and the fourth end of the third switch component is connected with the 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; 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 end of the third switch component and the third end of the third switch component, and a state of conduction between the second end of the third switch component and the fourth end of the third switch component; and when receiving a second control signal from the second control pin, switching 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 and equal in size to the upper tongue plate surface and the lower tongue plate surface; the thickness of the metal ground plane is smaller than that of the tongue plate.
According to a second aspect of the embodiments of the present disclosure, there is provided a control method of an external antenna device, the method including:
detecting the insertion state of the external antenna device when the external antenna device is detected to be inserted through the Type-C interface, 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 state 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 case of the FDD mode, the first control signal is used to control the switch component of the external antenna device to be connected with 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 with the second pin of the external antenna device.
Optionally, in the case of a TDD mode of operation, the first control signal is configured to control conduction between the first end and the third end and conduction between the second end and the fourth end 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.
Optionally, the method further comprises: detecting the intensity of a radio frequency signal transmitted by the 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 the non-working state to the working state.
According to a third aspect of embodiments of the present disclosure, there is provided a control device of an external antenna device, the device including:
the state detection module is configured to detect the insertion state of the external antenna device when the external antenna device is detected to be inserted through the Type-C interface, wherein 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 channel of a radio frequency signal;
And the signal transmitting module is configured to transmit the control signal to the external antenna device.
Optionally, the signal generating module further includes: a first signal generation sub-module configured to generate a first control signal when the insertion state is the positive insertion state; a second signal generation sub-module 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 case of the FDD mode, the first control signal is used to control the switch component of the external antenna device to be connected with 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 with the second pin of the external antenna device.
Optionally, in the case of a TDD mode of operation, the first control signal is configured to control conduction between the first end and the third end and conduction between the second end and the fourth end 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.
Optionally, the apparatus further comprises: a signal detection module configured to detect the intensity of a 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 the working state to the non-working state when the intensity is larger than a preset threshold value; the state switching module is further configured to control the built-in antenna to be switched from the non-working state to the working state.
According to a fourth aspect of embodiments of the present disclosure, there is provided 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:
detecting the insertion state of the external antenna device when the external antenna device is detected to be inserted through the Type-C interface, 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 comprise the following beneficial effects:
an external antenna device is formed by combining the Type-C interface, the radio frequency transmission circuit and the antenna body together, and the external antenna device can be inserted into a terminal for use. When the communication quality of the terminal is poor, the external antenna device can be used for enhancing the signal strength, so that the communication quality of the terminal is improved.
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 disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 schematically illustrates a pin arrangement of a Type-C male;
FIG. 2 illustrates a pin alignment schematic of a Type-C header;
fig. 3 schematically illustrates a structural diagram of an external antenna device;
fig. 4 illustrates a circuit diagram of an external antenna device supporting an FDD operation mode;
fig. 5 illustrates a circuit diagram of an external antenna device supporting a TDD mode of operation;
Fig. 6 illustrates a circuit diagram of another external antenna arrangement supporting a TDD mode of operation;
fig. 7 illustrates a circuit diagram of an external antenna device compatible with FDD and TDD modes of operation;
fig. 8 illustrates a circuit diagram of another external antenna arrangement compatible with FDD and TDD modes of operation;
fig. 9 illustrates a circuit diagram of yet another external antenna arrangement compatible with FDD and TDD modes of operation;
fig. 10 illustrates a circuit diagram of another external antenna device supporting FDD operation mode;
fig. 11 illustrates a circuit diagram of yet another external antenna arrangement supporting a TDD mode of operation;
fig. 12 illustrates a circuit diagram of yet another external antenna arrangement supporting a TDD mode of operation;
fig. 13 illustrates a circuit diagram of yet another external antenna arrangement compatible with FDD and TDD modes of operation;
fig. 14 illustrates a circuit diagram of yet another external antenna arrangement compatible with FDD and TDD modes of operation;
fig. 15 illustrates a circuit diagram of yet another external antenna arrangement compatible with FDD and TDD modes of operation;
FIG. 16 illustrates a pin configuration diagram of a 16-pin Type-C interface;
fig. 17 exemplarily shows a schematic diagram of a microstrip line structure of a Type-C interface;
Fig. 18 is a flowchart schematically showing a control method of the external antenna device;
fig. 19 exemplarily shows a block diagram of a control apparatus of an external antenna apparatus;
fig. 20 illustrates a block diagram of a control device of another external antenna device;
fig. 21 illustrates a block diagram of an apparatus.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.
Before describing the embodiments of the present disclosure, a Type-C interface is first described.
The Type-C interface can include the public head of Type-C 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 extract from the female head of Type-C.
As shown in fig. 1 and 2, there are schematic diagrams showing pin arrangements of Type-C male and Type-C female, respectively.
As shown in FIG. 1, the Type-C male includes a VBUS pin, a GND pin, a TX+ pin, a TX-pin, a RX+ pin, a RX-pin, a SBU1 pin, a SBU2 pin, a D+ pin, a D-pin, a CC1 pin, and a CC2 pin.
As shown in FIG. 2, the Type-C header includes a VBUS pin, a GND pin, a TX+ pin, a TX-pin, a RX+ pin, a RX-pin, a SBU1 pin, a SBU2 pin, a D+ pin, a D-pin, a CC1 pin, and a CC2 pin.
Wherein the VBUS pin and the GND pin are signals related to a power source, the D+ pin and the D-pin support data transmission, and the TX+/TX pin and the RX+/RX pin support high-speed data transmission. The CC1 pin and the CC2 pin are used for probing connections, distinguishing front and back, distinguishing DFP (Downstream Facing Port, downstream port) and UFP (Upstream Facing Port, upstream port), configuring VBUS, and configuring other modes, such as audio, and the like. The SBU pin is used for transmitting auxiliary signals and has different functions in different scenes. The RX+ pin includes an RX1+ pin and an RX2+ pin, the RX-pin includes an RX 1-pin and an RX 2-pin, the TX+ pin includes a TX1+ pin and a TX2+ pin, and the TX-pin includes a TX 1-pin and a TX 2-pin.
Optionally, as shown in fig. 1 and 2, the Type-C interface includes: a tongue plate, wherein the tongue plate is formed with an upper tongue plate surface and a lower tongue plate surface which are parallel and opposite; a first row of pins arranged on the upper tongue plate surface; the second row of pins are arranged on the lower tongue plate surface; and a metal ground plane GND-m arranged between the upper tongue plate surface and the lower tongue plate surface. Optionally, at least one pin of the first and second rows of pins is used for transmitting radio frequency signals RF. Illustratively, pin SBU1 and pin SBU2 may perform the function of 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 and equal in size to the upper tongue plate surface and the lower tongue plate surface; the thickness of the metal ground plane GND-m is smaller than the thickness of the tongue plate.
Fig. 16 is a pin structure diagram of a 16 pin Type-C interface. Compared with the 24-pin Type-C interface, the A2 pin, the A3 pin, the A10 pin, the A11 pin, the B2 pin, the B3 pin, the B10 pin and the B11 pin between the ground pin GND and the power pin VBUS are smooth and insulated tongue plates without pins. Illustratively, pin SBU1 and pin SBU2 may perform the function of 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 diagram of a microstrip line structure of a Type-C interface provided in an exemplary embodiment of the present disclosure. As shown in the drawing, a partially enlarged structure schematic diagram of the tongue plate comprises: pins for transmitting radio frequency signals RF, tongue 1003, tongue injection molded medium 401, metal ground plane GND-m. Wherein the tongue plate injection molding medium is a nonmetallic 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 molding medium 401 is Er. The width w of the pin for transmitting the radio frequency signal RF is 0.2mm according to Type-C Specification (Type-C Specification). And adjusting other parameters to achieve the impedance of the microstrip line of 50 ohms, and transmitting the radio frequency signals by the pins for transmitting the radio frequency signals RF.
The width w and 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 ground plane GND-m, and the specific value of the dielectric constant Er of the tongue plate injection molding medium 401 may be selected according to different application situations.
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 to the Type-C interface 31, and the second end of the radio frequency transmission circuit 32 is connected to the antenna body 33.
The Type-C interface 31 may be a Type-C male header or a Type-C female header. If the Type-C interface 31 is a Type-C male header, the Type-C female header of the terminal can be connected; if the Type-C interface 31 is a Type-C header, the Type-C header of the terminal may 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, etc., which is not limited in the embodiments of the present disclosure. The antenna body 33 may be one antenna shared by transmission and reception, or may include a plurality of 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 a housing.
In summary, according to the technical scheme provided by the embodiment of the disclosure, the Type-C interface, the radio frequency transmission circuit and the antenna body are combined together to form an external antenna device, and the external antenna device can be inserted into a terminal for use. When the communication quality of the terminal is poor, the external antenna device can be used for enhancing the signal strength, so that the communication quality of the terminal is improved.
In one possible implementation, the first end of the radio frequency transmission circuit 32 of the external antenna device 30 is connected to a target pin of the Type-C interface 31, which is one 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 may be an SBU2 pin of the Type-C interface 31. Under the condition that radio frequency signals of the terminal are transmitted through an SBU1 pin of a 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 in forward insertion; 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 plugged in reversely. Under the condition that radio frequency signals of the terminal are transmitted through an SBU2 pin of a Type-C interface of the terminal, if the target pin is an SBU1 pin of a Type-C interface 31 of the external antenna device 30, the external antenna device 30 can only be reversely inserted; 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 it is plugged in.
It should be noted that, in the embodiment of the disclosure, the Type-C interface of the terminal is taken as the Type-C female connector, the Type-C interface 31 of the external antenna device 30 is the Type-C male connector, and the radio frequency signal of the terminal is transmitted through the SBU1 pin of the Type-C female connector, and the external antenna device 30 can be normally used only when being inserted, so as to illustrate the internal circuit connection of the external antenna device 30, and after considering the scheme of the disclosure, those skilled in the art will easily think of other embodiments, but all fall within the protection scope of the disclosure.
In one example, as shown in fig. 4, to enable the external antenna device to adapt to a terminal FDD (Frequency Division Duplexing, frequency division duplex) operation mode, 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 end of the first duplexer 41 is connected to the target pin SBU1 of the Type-C interface 46, a second end of the first duplexer 41 is connected to the first end of the power amplifier 43, and a third end of the first duplexer 41 is connected to the first end of the low noise amplifier 44; the first end of the second diplexer 42 is connected to the antenna body 45, the second end of the second diplexer 42 is connected to the second end of the power amplifier 43, and the third end of the second diplexer 42 is connected to the second end of the low noise amplifier 44. In the disclosed embodiment, 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 power VCC is provided by the VBUS pin.
In the embodiment of the disclosure, after the external antenna device is inserted into the terminal, the external antenna device may enter the working state. When the terminal sends a radio frequency signal, the radio frequency signal is sent out by the terminal, and after passing through the SBU1 pin of the Type-C interface 46, the first duplexer 41 and the power amplifier 43 in sequence, the radio frequency signal 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, passes through the low noise amplifier 44, the second duplexer 42 and the SBU1 pin of the Type-C interface 46 in sequence, and is transmitted to the terminal.
In another example, as shown in fig. 5, to enable the external antenna device to adapt to a terminal TDD (Time Division Duplexing, time division duplex) operation mode, 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 with a target pin SBU1 of the Type-C interface 56, and the switch 55 is also connected with a first end of the power amplifier 53 and a first end 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; in the first state of the switch 55, the paths among the target pin SBU1, the power amplifier 53 and the first antenna body 51 are turned on; in the second state of the switch 55, the path between the target pin SBU1, the low noise amplifier 54, and the second antenna body 52 is 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 power VCC is provided by the VBUS pin.
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 a circuit and prevent a 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 high, for example, the resistance of the resistor (Rd) 57 is more than two kiloohms. When the CC2 pin is connected to the low level, the switch 55 is switched to the first state, i.e. the circuit between the SBU1 pin and the power amplifier 53 is turned on, and when the CC2 pin is connected to the high level, the switch 55 is switched to the second state, i.e. the circuit between the SBU1 pin 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 time slot for transmitting radio frequency signals, the radio frequency signals are transmitted by the terminal, respectively pass through an SBU1 pin of the Type-C interface 56, the change-over switch 55 and the power amplifier 53, and are transmitted by the first antenna body 51; when the terminal is in the time slot of 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, to save antenna costs, 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. The first end of the circulator 62 is connected to the antenna body 61, and the circulator 62 is also connected to the second end of the power amplifier and the second end of the low noise amplifier, respectively.
In yet another example, to enable the external antenna device to accommodate both a terminal FDD mode of operation and a 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 disclosure, the first transmission mode is adapted to a terminal FDD operation mode, and the second transmission mode is adapted to a 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 includes: 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 switch 710; the radio frequency transmission circuit further includes: a third duplexer 711; a first end of the first duplexer 704 is connected to a first end of the third duplexer 711, a second end of the first duplexer 704 is connected to a first end of the first power amplifier 706, and a third end of the first duplexer 704 is connected to a first end 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 the target pin SBU1 of the Type-C interface 712, and the switch 710 is further connected to the second end of the third duplexer 711 and the first end 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 paths among the target pin SBU1 of the Type-C interface 712, the first power amplifier 706 and the third antenna body 703 are turned on, or the paths among the target pin SBU1 of the Type-C interface 712, the first low noise amplifier 707 and the third antenna body 703 are turned on; in the second transmission mode, if the switch 710 is in the first state, the path between the target pin SBU1 of the Type-C interface 712, the second power amplifier 708 and the first antenna body 701 is conductive, and if the switch 710 is in the second state, the path between the target pin SBU1 of the Type-C interface 712, the second low noise amplifier 709 and the second antenna body 702 is conductive. 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 the VBUS pin of the Type-C interface 712, and the power VCC is provided by the VBUS pin.
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 a 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 high, for example, the resistance of the resistor (Rd) 713 is more than two kiloohms.
In the embodiment of the disclosure, the first antenna body 701 is used for transmitting signals in a terminal TDD operation mode, the second antenna body 702 is used for receiving signals in a terminal TDD operation mode, and the third antenna body 703 is used for transmitting and receiving signals in a terminal FDD operation mode.
Alternatively, to save antenna costs, the second antenna body and the third antenna body may share one antenna. For example, as shown in fig. 8, fig. 8 shares one antenna body 801 with the second antenna body 702 and the third antenna body 703 in fig. 7, and one more duplexer 802 is introduced. The first end of the diplexer 802 is connected to the antenna body 801, and the diplexer 802 is also connected to the first end of the second diplexer and the second end of the second low noise amplifier, respectively.
Optionally, to further save antenna costs, the first antenna body, the second antenna body and the third antenna body may all share one antenna. For example, as shown in fig. 9, fig. 9 shares one antenna body 901 with the first antenna body 701, the second antenna body 702, and the third antenna body 703 in fig. 7, and introduces one more diplexer 902 and one circulator 903. 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 also connected to a second end of a second low noise amplifier and a second end of a second power amplifier, respectively.
In summary, according to the technical scheme provided by the embodiment of the disclosure, the corresponding external antenna device is designed according to different working modes and different structures of the terminal, and the technical scheme provided by the embodiment of the disclosure designs the external antenna device compatible with the FDD working mode and the TDD working mode, so that the application range of the external antenna device is expanded.
In addition, in the embodiment of the disclosure, the duplexer is used for isolating the transmitting radio frequency signal and the receiving radio frequency signal, so that the transmitting and receiving of the radio frequency signal can be simultaneously carried out; the circulator is used for enabling the radio frequency signals to be transmitted in a unidirectional annular mode; the power amplifier is used for increasing the power of the transmitted radio frequency signals and reducing noise interference in the transmission process of the radio frequency signals; the low noise amplifier is used for amplifying the filtering of the received radio frequency signals and preventing the useful radio frequency signals from being submerged by noise.
In another possible embodiment, in order to enable the Type-C interface to be used normally when the Type-C interface is plugged in or plugged out, the external antenna device further includes: a switch assembly; the first end of the radio frequency transmission circuit is connected with the switch assembly, and the switch assembly is also connected with a first pin and a second pin of the Type-C interface respectively, wherein the first pin and the second pin are two pins which are opposite in position and have the same function; the first control pin of the Type-C interface is connected with a first resistor (Rd 1), the second control pin of the Type-C interface is connected with a second resistor (Rd 2), and the second control pin is also connected with the switch component; wherein, the resistance value of the second resistor (Rd 2) is larger than that of the first resistor (Rd 1); when the switch component is in a first state, a passage between the first end of the radio frequency transmission circuit and the first pin is conducted; and in the second state of the switch assembly, a passage 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 an SBU1 pin and an SBU2 pin, or an SBU2 pin and an SBU1 pin, respectively. Under the condition that radio frequency signals of the terminal are 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, when the external antenna device is inserted forward, the radio frequency signals are transmitted through the SBU1 pin of the Type-C interface, and when the external antenna device is inserted backward, the radio frequency signals are transmitted through the SBU2 pin of the Type-C interface; if the first pin of the Type-C interface of the external antenna device is an SBU2 pin, and the first pin is an SBU1 pin, when the external antenna device is inserted forward, the SBU2 pin of the Type-C interface is used for transmitting radio frequency signals, and when the external antenna device is inserted backward, 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 arrangement of the external antenna device and the transmission of the radio frequency signal in the forward and reverse inserting state 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 the description is omitted.
In the embodiment of the disclosure, the first control pin and the second control pin of the Type-C interface are a CC1 pin and a CC2 pin, or a CC2 pin and a CC1 pin, respectively. When the first control pin is a CC1 pin and the second control pin is a CC2 pin, the switch component is controlled by the CC2 pin; when the first control pin is a CC2 pin and the second control pin is a CC1 pin, the switch component is controlled by the CC1 pin.
It should be noted that, in the embodiment of the disclosure, the terminal Type-C interface is a Type-C female connector, the external antenna Type-C interface is a Type-C male connector, the first pin of the Type-C male connector is an SBU1 pin, the second pin is an SBU2 pin, the first control pin of the Type-C male connector is a CC1 pin, the second control pin is a CC2 pin, and the radio frequency signal of the terminal is transmitted through the SBU1 pin of the Type-C female connector for example, so as to describe the internal circuit connection of the external antenna device, which is easy for those skilled in the art to think of other embodiments after considering the scheme of the disclosure, but all fall within the protection scope of the disclosure.
In one example, as shown in fig. 10, to enable the external antenna device to adapt to the terminal FDD operation mode, 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 comprises 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; a second end of the first duplexer 101 is connected to a first end of the power amplifier 103, and a third end of the first duplexer 101 is connected to a first end of the low noise amplifier 104; the first end of the second diplexer 102 is connected to the antenna body 107, the second end of the second diplexer 102 is connected to the second end of the power amplifier 103, and the third end of the second diplexer 102 is connected to the second end of the low noise amplifier 104. The low noise amplifier 105, the power amplifier 103, and the first switch component 105 in the embodiment of the present disclosure are respectively connected to the VBUS pin of the Type-C interface 106, and the VBUS pin provides the power VCC.
In the disclosed embodiment, the first switch assembly 105 is configured to: upon receiving a first control signal Vcontrol from the second control pin, switching to a state in which the first terminal of the first switch assembly 105 is conductive to the third terminal of the first switch assembly 105; upon receiving the second control signal Vcontrol from the second control pin, it switches to a state where it is conductive 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 at a high level and the second control signal Vcontrol may be at a low level, which is not limited by the embodiments 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 being plugged, the first switch component 105 receives the first control signal Vcontrol from the CC2 pin of the Type-C interface 106, at this time, the sending radio frequency signal is transmitted through the SBU1 pin of the Type-C interface 106, the first switch component 105, the power amplifier 103 and the antenna body 107, and the receiving radio frequency signal is transmitted through the antenna body 107, the low noise amplifier 104, the first switch component 105 and the SBU1 pin of the Type-C interface 106. When the external antenna device is reversely inserted, the first switch assembly 105 receives the second control signal Vcontrol from the CC2 pin of the Type-C interface 106, at this time, the sending radio frequency signal is transmitted through the SBU2 pin of the Type-C interface 106, the first switch assembly 105, the power amplifier 103 and the antenna body 107, and the receiving radio frequency signal is transmitted through the antenna body 107, the low noise amplifier 104, the first switch assembly 105 and the SBU2 pin of the Type-C interface 106.
In another example, as shown in fig. 11, to enable the external antenna device to adapt to a TDD operation mode of a 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 switch assembly 115 is connected to a first pin SBU1 of the Type-C interface 116, a second end of the second switch assembly 115 is connected to a second pin SBU2 of the Type-C interface 116, a third end of the second switch assembly 115 is connected to a first end of the power amplifier 113, and a fourth end of the second switch assembly 115 is connected to a first end of the low noise amplifier 114; a second end of the power amplifier 113 is connected to the first antenna body 111, and a second end of the low noise amplifier 114 is connected to the second antenna body 112. In the disclosed embodiment, the low noise amplifier 114, the power amplifier 113 and the second switch component 115 are respectively connected to the VBUS pin of the Type-C interface 116, and the power VCC is provided by the VBUS pin.
In the disclosed embodiment, the second switch assembly 115 is used to: upon receiving the first control signal Vcontrol from the second control pin CC2 of the Type-C interface 116, switching to a state in which the first end of the second switch element is conductive to the third end of the second switch element, and a state in which the second end of the second switch element is conductive to the fourth end of the second switch element; upon receiving the second control signal Vcontrol from the second control pin CC2 of the Type-C interface 116, the switch is turned to a state where the first end of the second switch element is conductive to the fourth end of the second switch element, and a state where the second end of the second switch element is conductive to the third end of the second switch element.
In the embodiment of the present disclosure, the first antenna body 111 is used for transmitting radio frequency signals, and the second antenna body 112 is used for receiving radio frequency signals. When the external antenna device is inserted into the terminal, the external antenna device enters a working state. When the external antenna device is being plugged, the second switch component 115 receives the first control signal Vcontrol from the CC2 pin of the Type-C interface 116, and 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 component 115, the power amplifier 113 and the first antenna body 111; if the terminal is in a receive radio frequency signal timeslot, the radio frequency signal is transmitted through the SBU1 pin of the Type-C interface 116, the second switching component 115, the low noise amplifier 114, and the second antenna body 112. When the external antenna device is reversely inserted, the second switch component 115 receives the second control signal Vcontrol from the CC2 pin of the Type-C interface 116, and if the terminal is in the time slot for transmitting the radio frequency signal, the radio frequency signal is transmitted through the SBU2 pin of the Type-C interface 116, the second switch component 115, the power amplifier 113 and the first antenna body 111; if the terminal is in a receive radio frequency signal timeslot, the radio frequency signal is transmitted through the SBU2 pin of the Type-C interface 116, the second switching component 115, the low noise amplifier 114, and the second antenna body 112.
Alternatively, to save antenna costs, 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 also connected to the second end of the power amplifier and the second end of the low noise amplifier, respectively.
In yet another example, to enable the external antenna device to accommodate both a terminal FDD mode of operation and a 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 disclosure, the first transmission mode is adapted to a terminal FDD operation mode, and the second transmission mode is adapted to a 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 diplexer 1307; the switch assembly includes a third switch assembly 1308; a first end of the first duplexer 1301 is connected to a first end of the third duplexer 1307; a second end of the first duplexer 1301 is connected to a first end of the first power amplifier 1303, and a third end of the first duplexer 1301 is connected to a first end of the first low noise amplifier 1304; the first end of the second diplexer 1302 is coupled to the third antenna body 1309, the second end of the second diplexer 1302 is coupled to the second end of the first power amplifier 1303, and the third end of the second diplexer 1302 is coupled to the second end of the first low noise amplifier 1304; a first end of the third switching component 1308 is connected to a first pin SBU1 of the Type-C interface 1310, a second end of the third switching component 1308 is connected to a second pin SBU2 of the Type-C interface 1310, a third end of the third switching component 1308 is connected to a second end of the third diplexer 1307, and a fourth end of the third switching component 1308 is connected to a first end of the second power amplifier 1305; a second end of the second power amplifier 1305 is connected to the first antenna body 1311, and a second end of the second low noise amplifier 1306 is connected to the second antenna body 1312; a first terminal of the second low noise amplifier 1306 is connected to a third terminal of the third duplexer 1307. In the disclosed embodiment, 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 the VBUS pin of the Type-C interface 1310, and the power VCC is provided by the VBUS pin.
In the disclosed embodiment, a third switch component 1308 is used to: in the first transmission mode or the second transmission mode, when receiving the first control signal Vcontrol from the second control pin CC2 of the Type-C interface 1310, switching to a state in which the first end of the third switching element 1308 is conductive to the third end of the third switching element 1308, and a state in which the second end of the third switching element 1308 is conductive to the fourth end of the third switching element 1308; upon receiving the second control signal Vcontrol from the second control pin CC2 of the Type-C interface 1310, it switches to a state where conduction is between the first end of the third switching element 1308 and the fourth end of the third switching element 1308, and a state where conduction is between the second end of the third switching element 1308 and the third end of the third switching element 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 being plugged, the third switch component 1308 receives the 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 mode of operation, the radio frequency signal is sequentially transmitted 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 transmitted through the SBU1 pin of the Type-C interface 1310, the switch 1308, the first power amplifier 1303 and the third antenna body 1309; in the case that the terminal is in the TDD operation mode, if the terminal is in the time slot for transmitting the radio frequency signal, the radio frequency signal is sequentially transmitted 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 the time slot for receiving the radio frequency signal, the radio frequency signal is sequentially transmitted 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 reversely inserted, 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 mode of operation, the radio frequency signal is sequentially transmitted 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 transmitted through the SBU2 pin of the Type-C interface 1310, the switch 1308, the first power amplifier 1303 and the third antenna body 1309; in the case that the terminal is in the TDD operation mode, if the terminal is in the time slot of transmitting the radio frequency signal, the radio frequency signal is sequentially transmitted 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 the time slot of receiving the radio frequency signal, the radio frequency signal is sequentially transmitted 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 disclosure, the first antenna body 1312 is used for transmitting signals in the terminal TDD operation mode, the second antenna body 1311 is used for receiving signals in the terminal TDD operation mode, and the third antenna body 1309 is used for transmitting and receiving signals in the terminal FDD operation mode.
Alternatively, to save antenna costs, the second antenna body and the third antenna body may share one antenna. For example, as shown in fig. 14, fig. 14 shares one antenna body 1401 with the second antenna body 1311 and the third antenna body 1309 of fig. 13, and one more duplexer 1402 is introduced. The first end of the duplexer 1402 is connected to the antenna body 1401, and the duplexer 1402 is also connected to the first end of the second duplexer and the second end of the second low noise amplifier, respectively.
Optionally, to further save antenna costs, the first antenna body, the second antenna body and the third antenna body may all 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 one more duplexer 1502 and one circulator 1503 are introduced. 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 a 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 end of the second low noise amplifier and a second end of the second power amplifier, respectively.
In summary, the technical solution provided by the embodiments of the present disclosure provides convenience for users to use the external antenna device by designing the external antenna device compatible with the Type-C interface forward-inserting state and the reverse-inserting state, and designs the external antenna device compatible with the Type-C interface forward-inserting state and the reverse-inserting state, and compatible with the terminal FDD working mode and the TDD working mode, thereby greatly expanding the application range of the external antenna device.
In addition, in the embodiment of the disclosure, the duplexer is used for isolating the transmitting radio frequency signal and the receiving radio frequency signal, so that the transmitting and receiving of the radio frequency signal can be simultaneously carried out; the circulator is used for enabling the radio frequency signals to be transmitted in a unidirectional annular mode; the power amplifier is used for increasing the power of the transmitted radio frequency signals and reducing noise interference in the transmission process of the radio frequency signals; the low noise amplifier is used for amplifying the filtering of the received radio frequency signals and preventing the useful radio frequency signals from being submerged by noise.
It should be noted that, in the embodiment of the present disclosure, the Type-C interface is a Type-C male head as an example of the internal circuit connection of the external antenna device, but this cannot constitute a limitation of the present disclosure, and those skilled in the art will easily think of the internal circuit connection of the external antenna device when the Type-C interface is a Type-C female head after considering the scheme of the present disclosure, but all fall within the protection scope of the present disclosure.
Fig. 18 is a flowchart illustrating a control method of an external antenna device according to an embodiment of the present disclosure. The method may include 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 inserting state means 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 reverse plug state means that the CC1 pin of terminal Type-C interface is connected with the CC2 pin of external antenna device Type-C interface, and the CC2 pin of terminal Type-C interface is connected with the CC1 pin of external antenna device Type-C interface.
In the embodiment of the disclosure, the CC1 pin and the CC2 pin of the Type-C interface of the terminal may form a detection circuit, and the detection circuit may be used to detect an insertion state of the external antenna device. For example, when the CC1 pin of the Type-C interface of the external antenna device 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 Type-C interface of the terminal is low resistor and the CC2 pin is high resistor, the external antenna device is confirmed to be in a forward inserting state; if the detection circuit detects that the CC1 pin of the terminal Type-C interface is high-resistance and the CC2 pin is low-resistance, the external antenna device is confirmed to be in a reverse plug state. 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 detection circuit detects that the CC1 pin of the Type-C interface of the terminal is low resistor and the CC2 pin is high resistor, the external antenna device is confirmed to be in the reverse plug state; if the detection circuit detects that the CC1 pin of the terminal Type-C interface is high-resistance and the CC2 pin is low-resistance, the external antenna device is confirmed to be in a forward inserting state.
In step 1802, a control signal is generated according to the insertion state, where the control signal is used to control the external antenna device to turn on a transmission path of the radio frequency signal.
In the embodiment of the disclosure, the control signal may be represented by the 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 the 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 the CC1 pin of the Type-C interface of the external antenna device is connected to a low resistor and the CC2 pin is connected to a high resistor, if the terminal detection circuit detects that the external antenna device is in a forward 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 a reverse plug state, a low level is applied to a CC2 pin 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 the forward 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 a reverse plug state, a low level is applied to a CC1 pin of the external antenna device.
In an FDD mode of operation, the first control signal is for controlling the switch assembly of the external antenna device to be connected to the first pin of the external antenna device, and the second control signal is for controlling the switch assembly 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 when the first pin of the external antenna device is the SBU1 pin of the Type-C interface and the second pin 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 embodiment, in the TDD mode of operation, the first control signal is used to control conduction between the first end and the third end and conduction between the second end and the fourth end of the 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. 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 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 step 1803, a control signal is transmitted to the external antenna device.
In the embodiment of the disclosure, the terminal sends the control signal to the external antenna device through the wire connected with the switch of the external antenna device by 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 a control signal.
In one possible implementation manner, in order to save the use of the external antenna device and prevent the transmission burden caused by the overlarge radio frequency signal received by the terminal. The method further comprises the following steps: detecting the intensity of a radio frequency signal transmitted through an external antenna device; if the intensity is larger than a preset threshold value, controlling the external antenna device to switch from the working state to the non-working state; and controlling the built-in antenna to be switched from the non-working state to the working state.
In the disclosed embodiments, the strength of the radio frequency signal may be detected by an analog-to-digital converter of the terminal receiver. And the preset threshold value in the embodiment of the disclosure can be flexibly set according to actual application. For example, if the terminal is located in a region with poor signal, the preset threshold may be set to be larger; if the terminal is in the area with better signal, the preset threshold may be set smaller, which is not limited by the embodiment of the present disclosure.
In summary, according to the technical scheme provided by the embodiment of the 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 of the external antenna device is realized, and interaction efficiency between the external antenna device and the terminal is improved. In addition, in the embodiment of the disclosure, the working state of the external antenna device is determined according to the intensity of the radio frequency signal, which is favorable for saving the use of the external antenna device and preventing the transmission burden caused by overlarge radio frequency signal received by the terminal.
The following are device embodiments of the present disclosure that may be used to perform method embodiments of the present disclosure. For details not disclosed in the embodiments of the apparatus of the present disclosure, please 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 function of realizing the method example, and the function can be realized by hardware or can be realized by executing corresponding software by hardware. The device 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 the external antenna device is detected to be inserted through the Type-C interface, where the insertion state includes a forward insertion state and a reverse insertion state.
The signal generating module 1920 is configured to generate a control signal according to the insertion state, where the control signal is used to control the external antenna device to conduct a transmission path of a radio frequency signal.
A signal transmission 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 includes: a first signal generation sub-module 1921 configured to generate a first control signal when the insertion state is the forward insertion state; a second signal generation sub-module 1922 configured to generate a second control signal when the insertion state is the inverse insertion state; wherein the first control signal and the second control signal are two different control signals.
In some possible designs, in the case of the FDD mode of operation, the first control signal is used to control the switch assembly 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 assembly of the external antenna device to be connected to the second pin of the external antenna device.
In some possible designs, in the case of the TDD mode of operation, the first control signal is used to control conduction between the first end and the third end and between the second end and the fourth end of the 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.
In some possible designs, as shown in fig. 20, the apparatus 1900 further comprises: a signal detection module 1940 configured to detect the intensity 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 active state to an inactive state when the intensity is greater than a preset threshold; the state switching module 1950 is further configured to control the internal antenna to switch from the inactive state to the active state.
In summary, according to the technical scheme provided by the embodiment of the 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 of the external antenna device is realized, and interaction efficiency between the external antenna device and the terminal is improved. In addition, in the embodiment of the disclosure, the working state of the external antenna device is determined according to the intensity of the radio frequency signal, which is favorable for saving the use of the external antenna device and preventing the transmission burden caused by overlarge radio frequency signal received by the terminal.
An exemplary embodiment of the present disclosure further provides a control device of an external antenna device, including: a processor; a memory for storing executable instructions of the processor; wherein the processor is configured to:
detecting the insertion state of the external antenna device when the external antenna device is detected to be inserted through the Type-C interface, 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: generating a first control signal when the insertion state is the positive insertion state; generating 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 case of the FDD mode, the first control signal is used to control the switch component of the external antenna device to be connected with 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 with the second pin of the external antenna device.
Optionally, in the case of a TDD mode of operation, the first control signal is configured to control conduction between the first end and the third end and conduction between the second end and the fourth end 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.
Optionally, the processor is further configured to: detecting the intensity of a radio frequency signal transmitted by the external antenna device; when the intensity is larger than a preset threshold value, the external antenna device is controlled to be switched from a working state to a non-working state; and controlling the built-in antenna to be switched from the non-working state to the working state.
Fig. 21 is a block diagram illustrating an apparatus 2100, according to an illustrative embodiment. For example, the apparatus 2100 may be a cell phone, tablet computer, wearable device, music playing device, multimedia player, PC (Personal Computer ), vehicle-mounted terminal, exercise device, or the like.
Referring to fig. 21, 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 communication component 2116.
The processing component 2102 generally controls overall operations of the device 2100, such as operations associated with display, telephone call, data communication, 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 can include one or more modules that facilitate interaction between the processing component 2102 and other components. For example, the processing component 2102 can 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, phonebook data, messages, pictures, videos, and the like. The memory 2104 may be implemented by any type or combination of volatile or nonvolatile 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 disk.
The power supply assembly 2106 provides power to the various components of the device 2100. The power components 2106 can 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 assembly 2108 includes a screen between the device 2100 and the user that provides an output interface. 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 input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or slide action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia assembly 2108 includes a front camera and/or a rear camera. The front camera and/or the rear camera may receive external multimedia data when the device 2100 is in an operational 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 focal length and optical zoom capabilities.
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 device 2100 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further 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 component 2102 and a peripheral interface module, which may be a keyboard, click wheel, button, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.
The sensor assembly 2114 includes one or more sensors for providing status assessment of various aspects of the device 2100. For example, the sensor assembly 2114 may detect an open/closed state of the device 2100, a relative positioning of components such as a display and keypad of the device 2100, a change in position of the device 2100 or a component of the device 2100, the presence or absence of a user in contact with the device 2100, an orientation or acceleration/deceleration of the device 2100, and a change in temperature of the device 2100. The sensor assembly 2114 may include a proximity sensor configured to detect the presence of nearby objects 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 gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 2116 is configured to facilitate communication between the apparatus 2100 and other devices, either wired or wireless. 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 one exemplary embodiment, the communication component 2116 receives a broadcast signal or broadcast-related 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, microcontrollers, microprocessors, or other electronic elements for performing the control method of the external antenna apparatus described above.
In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as a memory 2104, comprising a computer program executable by the processor 2120 of the device 2100 to perform the method of controlling an external antenna device described above. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
It should be understood that references herein to a and B connection/connection may refer to either a direct connection/connection between a and B or an indirect connection/connection between a and B. References herein to "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is 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 adaptations, 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 is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (27)

1. An external antenna device, the device comprising: type-C interface, radio frequency transmission circuit and 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;
the apparatus further comprises: a switch assembly;
the first end of the radio frequency transmission circuit is connected with the switch assembly, and the switch assembly is also connected with a first pin and a second pin of the Type-C interface respectively, wherein the first pin and the second pin are two pins which are opposite in position and have the same effect; the first control pin of the Type-C interface is connected with a first resistor, the 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; wherein the resistance of the second resistor is larger than that of the first resistor;
when the switch assembly is in a first state, a first end of the radio frequency transmission circuit is conducted with a passage between the first pin;
and in a second state of the switch assembly, a passage between the first end of the radio frequency transmission circuit and the second pin is conducted.
2. The apparatus of claim 1, wherein the first end of the radio frequency transmission circuit is coupled to a target pin of the Type-C interface, the target pin being one 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;
the first end of the first duplexer is connected with the target pin, 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.
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 is also respectively connected with the first end of the power amplifier and 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;
When the change-over switch is in a first state, a passage 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 paths among the target pin, the low noise amplifier and the second antenna body are conducted.
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 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, a second low noise amplifier, and a switch; the radio frequency transmission circuit further includes: a third diplexer;
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;
the first end of the second duplexer is connected with the third antenna body, the second end of the second duplexer is connected with the second end of the first power amplifier, and the third end of the second duplexer is connected with the second end of the first low noise amplifier;
the change-over switch is connected with the target pin and is also respectively connected with the second end of the third duplexer and the 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; 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 passage among the target pin, the first power amplifier and the third antenna body is conducted, or a passage among 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 paths among the target pin, the second power amplifier and the first antenna body are conducted, and if the switch is in the second state, the paths among the target pin, the second low noise amplifier and the second antenna body are conducted.
7. The apparatus of claim 1, wherein the radio frequency transmission circuit comprises: a first duplexer, a second duplexer, a power amplifier, and a low noise amplifier;
the switch assembly includes a first switch assembly;
the first end of the first switch component is connected with the first pin, the second end of the first switch component is connected with the second pin, and the third end of the first switch component is connected with the 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.
8. The apparatus of claim 7, wherein the first 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 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 state of conduction between the second end of the first switch component and the third end of the first switch component.
9. The apparatus of claim 6, 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 includes a second switch assembly;
the first end of the second switch component is connected with the first pin, the second end of the second switch component is connected with the second pin, the third end of the second switch component is connected with the first end of the power amplifier, and the fourth end of the second switch component 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.
10. The apparatus of claim 9, 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;
and 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.
11. The apparatus of claim 6, 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;
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.
12. The apparatus of claim 11, 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 diplexer;
the switch assembly includes 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;
the first end of the second duplexer is connected with the third antenna body, the second end of the second duplexer is connected with the second end of the first power amplifier, and the third end of the second duplexer is connected with the second end of the first low noise amplifier;
The first end of the third switch component is connected with the first pin, the second end of the third switch component is connected with the second pin, the third end of the third switch component is connected with the second end of the third duplexer, and the fourth end of the third switch component is connected with the 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; the first end of the second low noise amplifier is connected with the third end of the third duplexer.
13. The apparatus of claim 12, wherein 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 end of the third switch component and the third end of the third switch component, and a state of conduction between the second end of the third switch component and the fourth end of the third switch component;
and when receiving a second control signal from the second control pin, switching 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.
14. The apparatus of any one of claims 1 to 13, and wherein the 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.
15. The device of claim 14, wherein the metallic ground plane is parallel and equal in size to the upper and lower tongue plate surfaces;
the thickness of the metal ground plane is smaller than that of the tongue plate.
16. A method for controlling an external antenna device, wherein the external antenna device is an external antenna device according to any one of claims 1 to 15, the method comprising:
detecting the insertion state of the external antenna device when the external antenna device is detected to be inserted through the Type-C interface, 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.
17. The method of claim 16, wherein generating a control signal based on the insertion state 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.
18. The method of claim 17, wherein the first control signal is used to control the switching assembly of the external antenna device to be coupled to a first pin of the external antenna device and the second control signal is used to control the switching assembly of the external antenna device to be coupled to a second pin of the external antenna device in the case of FDD mode of operation.
19. The method of claim 17, wherein in the TDD mode of operation, the first control signal is used to control conduction between a first terminal and a third terminal and between a second terminal and a fourth terminal of a switching element 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.
20. The method according to any one of claims 16 to 19, further comprising:
detecting the intensity of a radio frequency signal transmitted by the 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 the non-working state to the working state.
21. A control device for an external antenna device, wherein the external antenna device is an external antenna device according to any one of claims 1 to 15, the device comprising:
the state detection module is configured to detect the insertion state of the external antenna device when the external antenna device is detected to be inserted through the Type-C interface, wherein 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 channel of a radio frequency signal;
and the signal transmitting module is configured to transmit the control signal to the external antenna device.
22. The apparatus of claim 21, wherein the signal generation module further comprises:
A first signal generation sub-module configured to generate a first control signal when the insertion state is the positive insertion state;
a second signal generation sub-module 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.
23. The apparatus of claim 22, wherein the first control signal is configured to control the switching assembly of the external antenna device to be coupled to a first pin of the external antenna device and the second control signal is configured to control the switching assembly of the external antenna device to be coupled to a second pin of the external antenna device in the case of FDD mode of operation.
24. The apparatus of claim 22, wherein in the TDD mode of operation, the first control signal is used to control conduction between a first terminal and a third terminal and between a second terminal and a fourth terminal of a switching element 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.
25. The apparatus according to any one of claims 21 to 24, further comprising:
a signal detection module configured to detect the intensity of a 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 the working state to the non-working state when the intensity is larger than a preset threshold value;
the state switching module is further configured to control the built-in antenna to be switched from the non-working state to the working state.
26. A control device for an external antenna device, wherein the external antenna device is an external antenna device according to any one of claims 1 to 15, the device comprising:
a processor;
a memory for storing executable instructions of the processor;
wherein the processor is configured to:
detecting the insertion state of the external antenna device when the external antenna device is detected to be inserted through the Type-C interface, 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.
27. A non-transitory computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method according to any one of claims 16 to 20.
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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