CN213521880U - Radio frequency circuit and electronic equipment - Google Patents
Radio frequency circuit and electronic equipment Download PDFInfo
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- CN213521880U CN213521880U CN202023141554.3U CN202023141554U CN213521880U CN 213521880 U CN213521880 U CN 213521880U CN 202023141554 U CN202023141554 U CN 202023141554U CN 213521880 U CN213521880 U CN 213521880U
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Abstract
The application discloses radio frequency circuit and electronic equipment belongs to the technical field of communication. The radio frequency circuit includes: the antenna comprises a first radio frequency transceiver, a second radio frequency transceiver, a first transmitting module, a first receiving module, a first single-pole double-throw switch, a second single-pole double-throw switch, a switch module and an antenna. The first radio frequency transceiver and the second radio frequency transceiver in the embodiment of the application share the first transmitting module and the first receiving module to receive and transmit power, and then the radio frequency circuit can be switched among a plurality of working states by switching the switches, so that the design architecture and the device types of the radio frequency circuit are simplified, and the area of a PCB (printed Circuit Board) is saved.
Description
Technical Field
The application belongs to the technical field of communication, and particularly relates to a radio frequency circuit and electronic equipment.
Background
An Ultra Wide Band (UWB) technology is a wireless carrier communication technology, which does not use a sinusoidal carrier but uses nanosecond-level non-sinusoidal narrow pulses to transmit data, and thus, the occupied frequency spectrum range is Wide. The frequency range of UWB is 3.1 GHz-10.6 GHz.
With the progress of science and technology, the communication requirements of users are not satisfied at present, and 5G mobile terminals are produced. In the 5G band planning, the 5G spectrum includes 5G millimeter waves (5G mmW) and Sub-6GHz, and the band range of 5G mmW includes 6GHz-10GHz and 24.25GHz-52.6 GHz.
With the increasing popularization of 5G and UWB, more and more radio frequency bands and functions are supported by the terminal, and the layout of the device is more and more tense. How to simplify the radio architecture and reduce the cost has become a key requirement of the current radio architecture design.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a radio frequency circuit and an electronic device, and can solve the problems of complex design and high cost of a radio frequency architecture in the prior art.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, a radio frequency circuit is provided, including: the antenna comprises a first radio frequency transceiver, a second radio frequency transceiver, a first transmitting module, a first receiving module, a first single-pole double-throw switch, a second single-pole double-throw switch, a switch module and an antenna;
the first single-pole double-throw switch comprises a first end, a second end and a third end, wherein the first end is conducted with the third end or the second end is conducted with the third end;
the transmitting port of the first radio frequency transceiver is connected with the first end, the transmitting port of the second radio frequency transceiver is connected with the second end, the third end is connected with the input end of the first transmitting module, and the output end of the first transmitting module is connected with the antenna through the switch module;
the second single-pole double-throw switch comprises a fourth end, a fifth end and a sixth end, and the fourth end is conducted with the sixth end or the fifth end is conducted with the sixth end;
the receiving port of the first radio frequency transceiver is connected with the fourth end, the receiving port of the second radio frequency transceiver is connected with the fifth end, the sixth end is connected with the output end of the first receiving module, and the input end of the first receiving module is connected with the antenna through the switch module.
In a second aspect, an electronic device is provided, comprising: the radio frequency circuit of the first aspect.
In the embodiment of the application, the radio frequency circuit includes a first radio frequency transceiver, a second radio frequency transceiver, a first transmitting module, a first receiving module, a first single-pole double-throw switch, a second single-pole double-throw switch, a switch module and an antenna, wherein the first single-pole double-throw switch includes a first end, a second end and a third end, the first end is conducted with the third end or the second end is conducted with the third end, a transmitting port of the first radio frequency transceiver is connected with the first end, a transmitting port of the second radio frequency transceiver is connected with the second end, the third end is connected with an input end of the first transmitting module, an output end of the first transmitting module is connected with the antenna through the switch module, the second single-pole double-throw switch includes a fourth end, a fifth end and a sixth end, the fourth end is conducted with the sixth end or the fifth end is conducted with the sixth end, a receiving port of the first radio frequency transceiver is connected with the fourth end, a receiving port of the second radio frequency transceiver is connected with the fifth end, the sixth end is connected with the output end of the first receiving module, and the input end of the first receiving module is connected with the antenna through the switch module. The first radio frequency transceiver and the second radio frequency transceiver in the embodiment of the application share the first transmitting module and the first receiving module to receive and transmit power, and then the radio frequency circuit can be switched among a plurality of working states by switching the switches, so that the design architecture and the device types of the radio frequency circuit are simplified, and the area of a PCB (printed Circuit Board) is saved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of a radio frequency circuit according to an embodiment of the present application;
fig. 2 is a circuit diagram of a radio frequency circuit provided by an embodiment of the present application;
fig. 3 is a circuit diagram of another rf circuit provided by an embodiment of the present application.
In the figure, 10 — first radio frequency transceiver; 20-a second radio frequency transceiver; 30-a first transmitting module; 40-a first receiving module; 50-a switch module; 60-antenna.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The radio frequency circuit and the electronic device provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
As shown in fig. 1-3, the radio frequency circuit may include: a first radio frequency transceiver 10, a second radio frequency transceiver 20, a first transmitting module 30, a first receiving module 40, a first single-pole double-throw switch, a second single-pole double-throw switch, a switch module 50 and an antenna 60.
Specifically, the first single-pole double-throw switch comprises a first end, a second end and a third end, wherein the first end is conducted with the third end or the second end is conducted with the third end; the transmitting port of the first rf transceiver 10 is connected to the first end, the transmitting port of the second rf transceiver 20 is connected to the second end, the third end is connected to the input end of the first transmitting module 30, and the output end of the first transmitting module 30 is connected to the antenna 60 through the switch module 50; the second single-pole double-throw switch comprises a fourth end, a fifth end and a sixth end, and the fourth end is conducted with the sixth end or the fifth end is conducted with the sixth end; the receiving port of the first rf transceiver 10 is connected to the fourth port, the receiving port of the second rf transceiver 20 is connected to the fifth port, the sixth port is connected to the output port of the first receiving module 40, and the input port of the first receiving module 40 is connected to the antenna 60 through the switch module 50.
That is, the sending module of the first rf transceiver 10 and the sending module of the second rf transceiver 20 are combined, the receiving module of the first rf transceiver 10 and the receiving module of the second rf transceiver 20 are combined, and then the sending and receiving of each rf transceiver are realized by switching the switches, so that the design structure of the rf Circuit is simpler, part of hardware devices are reduced, and the space of a PCB (Printed Circuit Board) is saved.
The first rf transceiver 10 and the second rf transceiver 20 are transceivers of two different transmission technologies, and can transmit and receive signals in the same frequency band, and also can transmit signals in a dialup frequency band.
For example, the first rf transceiver 10 may be a 5G band rf transceiver, the second rf transceiver 20 may be a UWB band rf transceiver, or other embodiments, which are not described in this application.
In the embodiment of the present application, the rf circuit includes a first rf transceiver 10, a second rf transceiver 20, a first transmitting module 30, a first receiving module 40, a first single-pole double-throw switch, a second single-pole double-throw switch, a switch module 50 and an antenna, wherein the first single-pole double-throw switch includes a first end, a second end and a third end, the first end is conducted with the third end or the second end is conducted with the third end, a transmitting port of the first rf transceiver 10 is connected with the first end, a transmitting port of the second rf transceiver 20 is connected with the second end, the third end is connected with an input end of the first transmitting module 30, an output end of the first transmitting module 30 is connected with the antenna through the switch module 50, the second single-pole double-throw switch includes a fourth end, a fifth end and a sixth end, the fourth end is conducted with the sixth end or the fifth end is conducted with the sixth end, a receiving port of the first rf transceiver 10 is connected with the fourth end, the receiving port of the second rf transceiver 20 is connected to the fifth end, the sixth end is connected to the output end of the first receiving module 40, and the input end of the first receiving module 40 is connected to the antenna through the switch module 50. In the embodiment of the present application, the first rf transceiver 10 and the second rf transceiver 20 share one first transmitting module 30 and one first receiving module 40 to perform receiving and transmitting power, and then the radio frequency circuit can be switched among a plurality of operating states by switching the switches, so that the design architecture and the device types of the radio frequency circuit are simplified, and the area of the PCB is saved.
In one possible embodiment of the present application, as shown in fig. 2, the switch module 50 may include: a third single-pole double-throw switch and a filter switch module; the filtering switch module includes a first switch and a filter connected in parallel.
Specifically, the third single-pole double-throw switch includes a seventh terminal, an eighth terminal and a ninth terminal, and the seventh terminal is conducted with the ninth terminal or the eighth terminal is conducted with the ninth terminal; the output end of the first transmitting module 30 is connected with the seventh end, the input end of the first receiving module 40 is connected with the eighth end, and the ninth end is connected with the first end of the filtering switch module; and the second end of the filtering switch module is connected with the antenna.
In the embodiment of the present application, the first rf transceiver 10 and the second rf transceiver 20 may share a third single-pole double-throw switch and filtering switch module, and the same antenna for receiving and transmitting power. When the first radio frequency transceiver 10 transmits power, the seventh end and the ninth end of the third single-pole double-throw switch are connected, the first switch of the filtering switch module is disconnected, and the first switch is connected with the antenna through the filter to transmit power of the first frequency band; when the second rf transceiver 20 transmits power, the eighth end and the ninth end of the third single-pole double-throw switch are turned on, the first switch of the filtering switch module is turned on, and the first switch is turned on to transmit power of the first frequency band. That is, the radio frequency circuit provided by the present application can be switched between different operating states by switching the switch. By sharing some electronic devices, the structure of the circuit can be simplified, the wiring on the PCB board can be saved, and the space can be saved. In one possible embodiment of the present application, the radio frequency circuit may further include: the second transmitting module and the second receiving module.
Specifically, the input end of the second transmitting module and the output end of the second receiving module are both connected to the second rf transceiver 20.
Since the first rf transceiver 10 and the second rf transceiver 20 have different transmission modes and have partially the same circuit structure, a part of different circuit structures is required, so that the first rf transceiver 10 and the second rf transceiver 20 can work normally. As shown in fig. 2, the first rf transceiver 10 is a 5G band rf transceiver, the second rf transceiver 20 is a UWB band rf transceiver, the first rf transceiver 10 can directly transmit the power of the first band, and the second rf transceiver 20 needs to transmit the power of the first band after passing through the second transmitting module. The receiving end corresponds to the transmitting end.
In one possible embodiment of the present application, the second transmitting module includes: a pulse generator and a first mixer.
Specifically, an input terminal of the pulse generator is connected to a transmission port of the second radio frequency transceiver 20, an output terminal of the pulse generator is connected to an input terminal of the first mixer, and an output terminal of the first mixer is connected to the first terminal.
The second receiving module includes: the first amplifier comprises a first mixer, a first filter, a first amplifier and a first analog-to-digital converter.
Specifically, the input end of the second mixer is connected to the fifth end, the output end of the second mixer is connected to the input end of the first filter, the output end of the first filter is connected to the input end of the first amplifier, the output end of the first amplifier is connected to the input end of the first analog-to-digital converter, and the output end of the first analog-to-digital converter is connected to the receiving port of the second radio frequency transceiver 20.
That is, the UWB baseband signal generates a nanosecond-level pulse signal through the pulse generator, and the nanosecond-level pulse signal is amplified by the baseband signal amplifier and then mixed by the first mixer to become a broadband signal of 6G-10GHz, that is, the power of the first frequency band. The receiving end mixes the frequency of the power received by the antenna through the second mixer, filters the power through the first filter, amplifies the power through the first amplifier, and then enters a Modem (Modem) for demodulation after being converted through the first analog-to-digital converter.
In one embodiment of the present application, as shown in fig. 2, a WCN (Wireless communication) includes a first 5G frequency band, is conducted with an antenna wifi 5G CH0 through a single-pole double-throw switch and a filter SAW1, and transmits and receives power of the corresponding frequency band, for example, 0.45GHz-6GHz power, through the antenna. Also included is a second 5G frequency band, which is the frequency band transmitted and received by the first rf transceiver 10 in the embodiment of the present application.
The transmission process of the first rf transceiver 10 is: the first radio frequency transceiver 10 transmits a first frequency band power signal through a transmitting port, a first end of a first single-pole double-throw switch SW1 is conducted with a third end, a third end of a first single-pole double-throw switch SW1 is connected with an amplifier, the signal enters a third single-pole double-throw switch SW3 after being amplified by the amplifier, a seventh end of the third single-pole double-throw switch is conducted with a ninth end, a first switch BP of a filter switch module SAW is disconnected, a filter is conducted, and finally the signal is transmitted through an antenna ANT-UWB & wifi 5G CH 1.
The receiving process of the first rf transceiver 10 is as follows: the antenna ANT-UWB and wifi 5G CH1 receives the radio frequency signal, and transmits the radio frequency signal to the third single-pole double-throw switch SW3 through the filter of the filter switch module SAW, the eighth end and the ninth end of the third single-pole double-throw switch are connected, and the third single-pole double-throw switch is amplified by the amplifier, passes through the second single-pole double-throw switch SW2, and the fourth end and the sixth end of the second single-pole double-throw switch are connected, and transmits the received frequency band to the receiving port of the first radio frequency transceiver 10.
The transmission process of the second rf transceiver 20 is: the transmitting port generates a nanosecond-level pulse signal after passing through a pulse generator by a transmitted first frequency band signal, the nanosecond-level pulse signal passes through a first mixer and then enters a first single-pole double-throw switch SW1, a second end of the first single-pole double-throw switch is communicated with a third end of the first single-pole double-throw switch, the nanosecond-level pulse signal passes through an amplifier and then enters a third single-pole double-throw switch SW3, a seventh end of the third single-pole double-throw switch is communicated with a ninth end of the third single-pole double-throw switch, a first switch BP of a filter switch module SAW is communicated, and finally the nanosecond-level pulse signal is transmitted through an antenna ANT-.
The receiving process of the second rf transceiver 20 is as follows: the antenna ANT-UWB and wifi 5G CH1 receives the radio frequency signal, and transmits the radio frequency signal to the third single-pole double-throw switch SW3 through the first switch BP of the filter switch module SAW, the eighth end and the ninth end of the third single-pole double-throw switch are conducted, and the third single-pole double-throw switch is amplified by the amplifier, passes through the second single-pole double-throw switch SW2, and the fifth end and the sixth end of the second single-pole double-throw switch are conducted, and then the radio frequency signal is transmitted to the receiving port of the second radio frequency transceiver 20 after passing through the second mixer, the first filter, the first amplifier and the first analog-to-digital converter, and enters the Modem for demodulation.
Wherein, the transmitting and receiving processes of the first rf transceiver 10 are shown by the thin solid arrows in fig. 2. The transmission and reception processes of the second radio frequency transceiver 20 are shown by bold arrows in fig. 2.
In the embodiment of the present application, the first rf transceiver 10 and the second rf transceiver 20 implement transmitting and receiving rf signals in the same frequency band through a unified antenna. For example, the same frequency band may be a 6GHz-10GHz band.
In one possible embodiment of the present application, as shown in fig. 3, the switch module 50 may include: a fourth single pole double throw switch and a fifth single pole double throw switch; the antenna includes a first sub-antenna and a second sub-antenna.
The fourth single-pole double-throw switch comprises a tenth end, a tenth end and a twelfth end, wherein the tenth end is communicated with the twelfth end or the tenth end is communicated with the twelfth end; the fifth single-pole double-throw switch comprises a thirteenth end, a twelfth end and a fifteenth end, wherein the twelfth end is communicated with the fifteenth end or the twelfth end is communicated with the fifteenth end; the output end of the first transmitting module 30 is connected to the tenth end, the input end of the first receiving module 40 is connected to the eleventh end, the twelfth end is connected to the fifteenth end, the thirteenth end is connected to the first sub-antenna, and the fourteenth end is connected to the second sub-antenna.
In the embodiment of the present application, the first rf transceiver 10 and the second rf transceiver 20 share a fourth single-pole double-throw switch and a fifth single-pole double-throw switch, and then transmit and/or receive rf signals of different frequency bands by using two antennas respectively. That is, in the embodiment of the present application, the first rf transceiver 10 and the second rf transceiver 20 share a part of circuits, so as to transmit and receive rf signals in different frequency bands, and switch the rf circuit provided in the present application between different operating states through switching of the switch, that is, by sharing some electronic devices, the structure of the circuit can be simplified, the wiring on the PCB can be saved, and the space can be saved.
In one possible embodiment of the present application, the radio frequency circuit may further include: the first transceiving module and the second transceiving module.
Specifically, a first end of the first transceiver module is connected with the thirteenth end, and a second end of the first transceiver module is connected with the first sub-antenna; the first end of the second transceiving module is connected with the fourteenth end, and the second end of the second transceiving module is connected with the second sub-antenna.
In the embodiment of the present application, after the fifth single-pole double-throw switch, the circuit is divided into two parts, one part receives and transmits the rf signal of the first rf transceiver 10, and the other part receives and transmits the rf signal of the second rf transceiver 20, that is, the first transceiver module is connected to the first sub-antenna, and the second transceiver module is connected to the second sub-antenna. That is, the first rf transceiver 10 and the second rf transceiver 20 share the front part of the circuit, and the rear part of the circuit does not share the circuit, so that the first rf transceiver 10 and the second rf transceiver 20 can receive and transmit rf signals in different frequency bands while reducing electronic devices as much as possible.
The frequency band for transmitting and receiving by the first radio frequency transceiver 10 is 24.25GHz-52.6GHz, and the frequency band for transmitting and receiving by the second radio frequency transceiver 20 is 6GHz-10 GHz.
In one possible embodiment of the present application, the first transceiver module includes: the antenna comprises a sixth single-pole double-throw switch, a first transmitting sub-module, a first receiving sub-module, a seventh single-pole double-throw switch, a second filter, a coupler and a phase shifter.
Specifically, the sixth single-pole double-throw switch includes a sixteenth end, a seventeenth end and an eighteenth end, and the sixteenth end is conducted with the eighteenth end or the seventeenth end is conducted with the eighteenth end; the seventh single-pole double-throw switch comprises a nineteenth end, a twentieth end and a twentieth end, wherein the nineteenth end is conducted with the twentieth end or the twentieth end is conducted with the twentieth end; the eighteenth end is connected with the thirteenth end, the sixteenth end is connected with the input end of the first transmitting sub-module, and the output end of the first transmitting sub-module is connected with the nineteenth end; the seventeenth end is connected with the output end of the first receiving sub-module, and the input end of the first receiving sub-module is connected with the twentieth end; the twentieth end is connected with the first end of the second filter, the second end of the second filter is connected with the first end of the coupler, the second end of the coupler is connected with the first end of the phase shifter, and the second end of the phase shifter is connected with the first sub-antenna.
Since the transmitting and receiving frequency band of the first rf transceiver 10 is high, a series of amplification and filtering is required to transmit and receive the rf signal of the frequency band, so as to obtain the rf signal of the frequency band.
In one possible embodiment of the present application, the first transmitting sub-module includes: a third mixer, a second amplifier, a third filter and a third amplifier.
Specifically, the input end of the third mixer is connected to the sixteenth end, the output end of the third mixer is connected to the input end of the second amplifier, the output end of the second amplifier is connected to the input end of the third filter, the output end of the third filter is connected to the input end of the third amplifier, and the output end of the third amplifier is connected to the nineteenth end.
The first receiving sub-module comprises: a fourth amplifier, a fourth filter, a fifth amplifier, and a fourth mixer.
Specifically, the input end of the fourth amplifier is connected to the twentieth end, the output end of the fourth amplifier is connected to the input end of the fourth filter, the output end of the fourth filter is connected to the input end of the fifth amplifier, the output end of the fifth amplifier is connected to the input end of the fourth mixer, and the output end of the fourth mixer is connected to the seventeenth end.
In the embodiment of the present application, the amplification of the signals transmitted and received by the first rf transceiver 10 is described by a specific circuit, so as to meet the frequency band requirement of the signals transmitted and received by the first rf transceiver 10. In other embodiments, other electronics may be used as long as the effect of amplification filtering can be achieved.
In one possible embodiment of the present application, the first transmission module 30 includes: a sixth amplifier, a fifth mixer, and a fifth filter;
specifically, the input end of the sixth amplifier is connected to the third end, the output end of the sixth amplifier is connected to the input end of the fifth mixer, the output end of the fifth mixer is connected to the input end of the fifth filter, and the output end of the fifth filter is connected to the tenth end.
The first receiving module 40 includes: a sixth filter, a sixth mixer, a seventh filter, a seventh amplifier, and a second analog-to-digital converter.
Specifically, an input end of the sixth filter is connected to the eleventh end, an output end of the sixth filter is connected to an input end of the sixth mixer, an output end of the sixth mixer is connected to an input end of the seventh filter, an output end of the seventh filter is connected to an input end of the seventh amplifier, an output end of the seventh amplifier is connected to an input end of the second analog-to-digital converter, and an output end of the second analog-to-digital converter is connected to the sixth end.
In the embodiment of the present application, the first rf transceiver 10 and the second rf transceiver 20 share the same first transmitting module 30 and the same first receiving module 40 through the above-mentioned electronic devices, so as to reduce the overall devices of the rf circuit and simplify the circuit. In other embodiments, other electronic devices may be used as long as the same function is achieved.
The transmission process of the first rf transceiver 10 is: the first rf transceiver 10 transmits the second band power signal through the transmitting port 5G _ TX, the second terminal and the third terminal of the first single-pole double-throw switch SW1 are conducted, then the mixed signal enters a fourth single-pole double-throw switch SW4 through amplification of a sixth amplifier, frequency mixing of a ground-five frequency mixer and filtering of a fifth filter, the mixed signal enters a fourth single-pole double-throw switch SW4, the tenth end and the twelfth end of the fourth single-pole double-throw switch are conducted, the thirteenth end and the fifteenth end of the fifth single-pole double-throw switch SW5 are conducted, the sixteenth end and the eighteenth end of the sixth single-pole double-throw switch SW6 are conducted, the mixed signal is conducted through a third frequency mixer, the amplified signal is amplified through a second amplifier, filtered through a third filter and amplified through a third amplifier, the mixed signal enters a seventh single-pole double-throw switch SW7, the nineteenth end and the twentieth end of the seventh single-pole double-throw switch are conducted, filtered through the second filter, coupled through a coupler, phase shifted, and finally the filtered signal is.
The receiving process of the first rf transceiver 10 is as follows: an antenna ANT-H receives a radio frequency signal of a second frequency band, the radio frequency signal enters a seventh single-pole double-throw switch SW7 through phase shifting of a phase shifter, coupling of a coupler and filtering of a second filter, the radio frequency signal enters a sixth single-pole double-throw switch SW6 after a twentieth end of the seventh single-pole double-throw switch is conducted with a twentieth end of the seventh single-pole double-throw switch, the radio frequency signal enters a sixth single-pole double-throw switch SW6 after being amplified by a fourth amplifier, filtered by a fourth filter, amplified by a fifth amplifier and mixed by a fourth mixer, a fourteenth end of the fifth single-pole double-throw switch SW5 is conducted with a fifteenth end of the sixth single-pole double-throw switch SW4, the radio frequency signal is filtered by a sixth filter, mixed by a sixth mixer, filtered by a seventh filter, amplified by a seventh amplifier and converted by a second analog-to-digital converter and then sent to the second single-pole double-throw switch SW2, and the fifth end of the second single-pole double-throw switch is conducted with a, and finally to the receiving port 5G _ RX of the first rf transceiver 10.
The transmission process of the second rf transceiver 20 is: the transmitting port UWB _ TX enables a transmitted first frequency band signal to pass through a pulse generator to generate a nanosecond-level pulse signal, the nanosecond-level pulse signal enters a first single-pole double-throw switch SW1, a second end of the first single-pole double-throw switch is conducted with a third end, the first single-pole double-throw switch is amplified through a sixth amplifier, mixed through a ground-five mixer and filtered through a fifth filter, the first single-pole double-throw switch enters a fourth single-pole double-throw switch SW4, a tenth end and a twelfth end of the fourth single-pole double-throw switch are conducted, a fourteenth end and a fifteenth end of a fifth single-pole double-throw switch SW5 are conducted, and finally the nanosecond-level pulse signal is transmitted through a second sub-antenna.
The receiving process of the second rf transceiver 20 is as follows: the antenna ANT _ UWB receives a radio frequency signal of a first frequency band, and transmits the radio frequency signal to the fifth single-pole double-throw switch, the fourteen end and the fifteenth end of the fifth single-pole double-throw switch SW5 are connected, the eleventh end and the twelfth end of the fourth single-pole double-throw switch are connected, and then the radio frequency signal is transmitted to the second single-pole double-throw switch SW2 after being filtered by the sixth filter, mixed by the sixth mixer, filtered by the seventh filter, amplified by the seventh amplifier, converted by the second analog-to-digital converter, and finally transmitted to the receiving port UWB _ RX of the second radio frequency transceiver 20.
The transmission process of the first rf transceiver 10 is shown by the thin solid arrow in fig. 3, and the reception process of the first rf transceiver 10 is shown by the thin dashed arrow in fig. 3. The transmission process of the second rf transceiver 20 is shown by the thick solid arrow in fig. 3, and the reception process of the second rf transceiver 20 is shown by the thick dotted arrow in fig. 3.
An embodiment of the present application further provides an electronic device, including the radio frequency circuit according to any of the above embodiments. The functions of the radio frequency circuit can be realized, the same effect can be achieved, and the details are not repeated here to avoid repetition.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (11)
1. A radio frequency circuit, comprising: the antenna comprises a first radio frequency transceiver, a second radio frequency transceiver, a first transmitting module, a first receiving module, a first single-pole double-throw switch, a second single-pole double-throw switch, a switch module and an antenna;
the first single-pole double-throw switch comprises a first end, a second end and a third end, wherein the first end is conducted with the third end or the second end is conducted with the third end;
the transmitting port of the first radio frequency transceiver is connected with the first end, the transmitting port of the second radio frequency transceiver is connected with the second end, the third end is connected with the input end of the first transmitting module, and the output end of the first transmitting module is connected with the antenna through the switch module;
the second single-pole double-throw switch comprises a fourth end, a fifth end and a sixth end, and the fourth end is conducted with the sixth end or the fifth end is conducted with the sixth end;
the receiving port of the first radio frequency transceiver is connected with the fourth end, the receiving port of the second radio frequency transceiver is connected with the fifth end, the sixth end is connected with the output end of the first receiving module, and the input end of the first receiving module is connected with the antenna through the switch module.
2. The circuit of claim 1, wherein the switch module comprises: a third single-pole double-throw switch and a filter switch module; the filtering switch module comprises a first switch and a filter which are connected in parallel;
the third single-pole double-throw switch comprises a seventh end, an eighth end and a ninth end, wherein the seventh end is conducted with the ninth end or the eighth end is conducted with the ninth end;
the output end of the first transmitting module is connected with the seventh end, the input end of the first receiving module is connected with the eighth end, and the ninth end is connected with the first end of the filtering switch module;
and the second end of the filtering switch module is connected with the antenna.
3. The circuit of claim 2, wherein the radio frequency circuit further comprises: the second transmitting module and the second receiving module;
the input end of the second transmitting module and the output end of the second receiving module are both connected with the second radio frequency transceiver.
4. The circuit of claim 3, wherein the second transmit module comprises: a pulse generator and a first mixer;
the input end of the pulse generator is connected with the transmitting port of the second radio frequency transceiver, the output end of the pulse generator is connected with the input end of the first mixer, and the output end of the first mixer is connected with the first end;
the second receiving module includes: the first amplifier is connected with the first frequency mixer, and the second amplifier is connected with the first analog-to-digital converter;
the input end of the second mixer is connected with the fifth end, the output end of the second mixer is connected with the input end of the first filter, the output end of the first filter is connected with the input end of the first amplifier, the output end of the first amplifier is connected with the input end of the first analog-to-digital converter, and the output end of the first analog-to-digital converter is connected with the receiving port of the second radio frequency transceiver.
5. The circuit of claim 1, wherein the switch module comprises: a fourth single pole double throw switch and a fifth single pole double throw switch; the antenna comprises a first sub-antenna and a second sub-antenna;
the fourth single-pole double-throw switch comprises a tenth terminal, a tenth terminal and a twelfth terminal, wherein the tenth terminal is communicated with the twelfth terminal or the tenth terminal is communicated with the twelfth terminal;
the fifth single-pole double-throw switch comprises a thirteenth terminal, a fourteenth terminal and a fifteenth terminal, wherein the thirteenth terminal is conducted with the fifteenth terminal or the fourteenth terminal is conducted with the fifteenth terminal;
an output end of the first transmitting module is connected to the tenth end, an input end of the first receiving module is connected to the eleventh end, the twelfth end is connected to the fifteenth end, the thirteenth end is connected to the first sub-antenna, and the fourteenth end is connected to the second sub-antenna.
6. The circuit of claim 5, wherein the radio frequency circuit further comprises: the first transceiving module and the second transceiving module;
the first end of the first transceiving module is connected with the thirteenth end, and the second end of the first transceiving module is connected with the first sub-antenna;
the first end of the second transceiving module is connected with the fourteenth end, and the second end of the second transceiving module is connected with the second sub-antenna.
7. The circuit of claim 6, wherein the first transceiver module comprises: the first single-pole double-throw switch is connected with the first receiving sub-module, the second single-pole double-throw switch is connected with the second receiving sub-module, and the third single-pole double-throw switch is connected with the second receiving sub-module;
the sixth single-pole double-throw switch comprises a sixteenth end, a seventeenth end and an eighteenth end, wherein the sixteenth end is communicated with the eighteenth end or the seventeenth end is communicated with the eighteenth end;
the seventh single-pole double-throw switch comprises a nineteenth end, a twentieth end and a twentieth end, wherein the nineteenth end is conducted with the twentieth end or the twentieth end is conducted with the twentieth end;
the eighteenth end is connected with the thirteenth end, the sixteenth end is connected with the input end of the first transmitting sub-module, and the output end of the first transmitting sub-module is connected with the nineteenth end;
the seventeenth end is connected with the output end of the first receiving sub-module, and the input end of the first receiving sub-module is connected with the twentieth end;
the twentieth end is connected to the first end of the second filter, the second end of the second filter is connected to the first end of the coupler, the second end of the coupler is connected to the first end of the phase shifter, and the second end of the phase shifter is connected to the first sub-antenna.
8. The circuit of claim 7, wherein the first transmit sub-module comprises: a third mixer, a second amplifier, a third filter and a third amplifier;
the input end of the third mixer is connected with the sixteenth end, the output end of the third mixer is connected with the input end of the second amplifier, the output end of the second amplifier is connected with the input end of the third filter, the output end of the third filter is connected with the input end of the third amplifier, and the output end of the third amplifier is connected with the nineteenth end;
the first receiving sub-module comprises: a fourth amplifier, a fourth filter, a fifth amplifier and a fourth mixer;
the input end of the fourth amplifier is connected with the twentieth end, the output end of the fourth amplifier is connected with the input end of the fourth filter, the output end of the fourth filter is connected with the input end of the fifth amplifier, the output end of the fifth amplifier is connected with the input end of the fourth mixer, and the output end of the fourth mixer is connected with the seventeenth end.
9. The circuit of claim 5, wherein the first transmit module comprises: a sixth amplifier, a fifth mixer, and a fifth filter;
the input end of the sixth amplifier is connected with the third end, the output end of the sixth amplifier is connected with the input end of the fifth mixer, the output end of the fifth mixer is connected with the input end of the fifth filter, and the output end of the fifth filter is connected with the tenth end.
10. The circuit of claim 5, wherein the first receiving module comprises: the sixth filter, the sixth mixer, the seventh filter, the seventh amplifier and the second analog-to-digital converter;
the input end of the sixth filter is connected to the eleventh end, the output end of the sixth filter is connected to the input end of the sixth mixer, the output end of the sixth mixer is connected to the input end of the seventh filter, the output end of the seventh filter is connected to the input end of the seventh amplifier, the output end of the seventh amplifier is connected to the input end of the second analog-to-digital converter, and the output end of the second analog-to-digital converter is connected to the sixth end.
11. An electronic device, comprising: a radio frequency circuit as claimed in any one of claims 1 to 10.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023141554.3U CN213521880U (en) | 2020-12-23 | 2020-12-23 | Radio frequency circuit and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023141554.3U CN213521880U (en) | 2020-12-23 | 2020-12-23 | Radio frequency circuit and electronic equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113676204A (en) * | 2021-08-09 | 2021-11-19 | 维沃移动通信有限公司 | Circuit structure, electronic equipment, control method and device |
| CN116299398A (en) * | 2023-05-23 | 2023-06-23 | 石家庄银河微波技术股份有限公司 | Target ranging method and device applied to aircraft and electronic equipment |
-
2020
- 2020-12-23 CN CN202023141554.3U patent/CN213521880U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113676204A (en) * | 2021-08-09 | 2021-11-19 | 维沃移动通信有限公司 | Circuit structure, electronic equipment, control method and device |
| CN116299398A (en) * | 2023-05-23 | 2023-06-23 | 石家庄银河微波技术股份有限公司 | Target ranging method and device applied to aircraft and electronic equipment |
| CN116299398B (en) * | 2023-05-23 | 2023-08-29 | 石家庄银河微波技术股份有限公司 | Target ranging method and device applied to aircraft and electronic equipment |
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