CN219372427U - Transceiver and communication device - Google Patents
Transceiver and communication device Download PDFInfo
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- CN219372427U CN219372427U CN202223398636.5U CN202223398636U CN219372427U CN 219372427 U CN219372427 U CN 219372427U CN 202223398636 U CN202223398636 U CN 202223398636U CN 219372427 U CN219372427 U CN 219372427U
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Abstract
The application discloses a transceiver and communication equipment, wherein the transceiver comprises a signal processing module, a transceiver module, a phase-locked oscillation module, a first switching unit and a second switching unit; the phase-locked oscillation module is connected with the signal processing module, and the first switching unit is respectively connected with the first phase-locked oscillation unit and the second phase-locked oscillation unit; the second switching unit is respectively connected with the first switching unit, the receiving unit and the transmitting unit; the first switching unit is used for conducting the first phase-locked oscillating unit and the input end of the second switching unit, or conducting the second phase-locked oscillating unit and the input end of the second switching unit; the second switching unit is used for conducting the receiving unit with the output end of the first switching unit or conducting the transmitting unit with the output end of the first switching unit. The transceiver can meet four conversion modes of transmission signals only by two sets of phase-locked circuits through the two switching units, thereby reducing the use of devices, reducing the production cost and reducing the space occupation.
Description
Technical Field
The present utility model relates to the field of communications technologies, and in particular, to a transceiver and a communications device.
Background
In a radio communication system, a transceiver having a gateway function is generally provided. To satisfy an arbitrary switching of the signal transceiving mode at each slot.
Wherein in successive time slots, various transitions between different frequencies of the signal include: the receiving frequency is converted into the transmitting frequency, the receiving frequency is converted into the receiving frequency, and the transmitting frequency is converted into the transmitting frequency and the transmitting frequency is converted into the receiving frequency. To meet the above frequency conversion requirements of the signal, the existing transceivers are complex in design. In order to meet the requirement of mutual switching between adjacent time slot receiving and transmitting or switching between different frequencies, two complete phase-locked oscillating circuits are used on the receiving and transmitting channels, and four phase-locked oscillating circuits are shared. And a plurality of sets of phase-locked oscillating circuits are used, so that the production cost is high and the occupied space is large.
Therefore, how to simplify the circuit structure for phase-locked oscillation in the transceiver, reduce the cost and occupied space thereof is a problem to be solved at present.
Disclosure of Invention
The utility model provides a transceiver and a communication device, which are used for simplifying the circuit structure of the transceiver.
In order to solve the above technical problems, an embodiment of the present utility model discloses a transceiver, including: the device comprises a signal processing module, a transceiver module, a phase-locked oscillation module, a first switching unit and a second switching unit, wherein the transceiver module comprises a receiving unit and a transmitting unit; the phase-locked oscillation module comprises a first phase-locked oscillation unit and a second phase-locked oscillation unit, and the first phase-locked oscillation unit and the second phase-locked oscillation unit are both connected with the signal processing module; the first switching unit is respectively connected with the first phase-locked oscillating unit and the second phase-locked oscillating unit; the second switching unit is respectively connected with the first switching unit, the receiving unit and the transmitting unit; the first switching unit is used for conducting the first phase-locked oscillating unit and the input end of the second switching unit, or conducting the second phase-locked oscillating unit and the input end of the second switching unit; the second switching unit is used for conducting the receiving unit with the output end of the first switching unit or conducting the transmitting unit with the output end of the first switching unit.
In one possible implementation manner, the first switching unit is a first switch, and the first switch includes a first input end, a second input end and an output end, where the first input end is connected with the first phase-locked oscillating unit, the second input end is connected with the second phase-locked oscillating unit, and when the first input end is connected with the output end, the first phase-locked oscillating unit is conducted with the input end of the second switching unit; when the second input end is connected with the output end, the second phase-locked oscillating unit is conducted with the input end of the second switching unit.
In one possible implementation manner, the first phase-locked oscillation unit includes a first phase-locked loop and a first voltage-controlled oscillator connected in series; the first phase-locked loop is connected with the signal processing module, and the first voltage-controlled oscillator is connected with the first input end; and/or the second phase-locked oscillation unit comprises a second phase-locked loop and a second voltage-controlled oscillator which are connected in series; the second phase-locked loop is connected with the signal processing module, and the second voltage-controlled oscillator is connected with the second input end.
In a possible implementation manner, the second switching unit is a second switch, and the second switch includes an input end, a first output end, and a second output end, where the first output end is connected to the transmitting unit, and the second output end is connected to the receiving unit, and when the input end is connected to the first output end, the transceiver module is in a transmitting state; when the input end is connected with the second output end, the receiving and transmitting module is in a receiving state.
In one possible embodiment, the transmitting unit includes: the signal modulation unit is connected with the first output end and used for modulating the signal output by the first output end; the amplifying unit is connected with the signal modulating unit and is used for amplifying the signal output by the signal modulating unit; and the coupling unit is connected with the amplifying unit and is used for coupling one part of amplified signal output and the other part of amplified signal to the signal modulation unit.
In one possible embodiment, the receiving unit includes: a low noise amplifier for amplifying the signal received by the transceiver; the mixer is respectively connected with the second output end and the low-noise amplifier and is used for mixing the signal output by the second output end with the signal output by the low-noise amplifier; and the signal demodulation unit is respectively connected with the mixer and the signal processing module and is used for demodulating the mixed signals.
In one possible embodiment, the transceiver further comprises: a first filtering unit connected to an antenna of the transceiver; and the third change-over switch is respectively connected with the coupling unit, the low-noise amplifier and the first filtering unit and is used for conducting the coupling unit with the first filtering unit or conducting the low-noise amplifier with the first filtering unit.
In one possible embodiment, the first filtering unit is a low-pass filter.
In one possible embodiment, the transceiver further comprises: and the amplifier is connected between the output end of the first switching unit and the input end of the second switching unit.
In order to solve the technical problem, the embodiment of the utility model also discloses a communication device, which comprises the transceiver described in the embodiment.
The beneficial effects of this application: in contrast to the prior art, the present application provides a transceiver and a communication device, where the transceiver includes a signal processing module, a transceiver module, a phase-locked oscillation module, a first switching unit and a second switching unit. The phase-locked oscillation module is connected with the signal processing module, and the first switching unit is respectively connected with the first phase-locked oscillation unit and the second phase-locked oscillation unit; the second switching unit is respectively connected with the first switching unit, the receiving unit and the transmitting unit; the first switching unit is used for conducting the first phase-locked oscillating unit and the input end of the second switching unit, or conducting the second phase-locked oscillating unit and the input end of the second switching unit; the second switching unit is used for conducting the receiving unit with the output end of the first switching unit or conducting the transmitting unit with the output end of the first switching unit. The transceiver provided by the embodiment of the application simplifies the structure of the phase-locked oscillation circuit in the radio communication transceiver through the back-to-back arrangement of the two switching units.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments will be briefly described below.
Fig. 1 is a schematic structural diagram of an embodiment of a transceiver of the present application.
Reference numerals: 100. a transceiver; 110. a signal processing module; 120. a phase-locked oscillation module; 121. a first phase-locked oscillation unit; 122. a second phase-locked oscillation unit; 131. a first switching unit; 132. a second switching unit; 133. a third change-over switch; 141. a transmitting unit; 142. a receiving unit; 1411. a signal modulation unit; 1412. an amplifying unit; 1413. a coupling unit; 1421. a low noise amplifier; 1422. a mixer; 1423. a signal demodulation unit; 150. a first filtering unit; 160. an antenna.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, the "plurality" generally includes at least two, but does not exclude the case of at least one.
It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
It should be understood that 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 … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
In a radio communication system, there is a need for a transceiver with gateway functionality that enables four types of conversion of an input signal between different frequencies in successive time slots, comprising: the receiving is changed to the receiving, the receiving is changed to the transmitting, the transmitting is changed to the receiving, and the transmitting is changed to the transmitting. To achieve the above-mentioned conversion, transceivers used in existing radio communication systems are complex.
In order to solve the above-mentioned problem, the present application proposes a transceiver, by setting a first switching unit and a second switching unit connected in a back-to-back manner, the circuit structure of the phase-locked oscillation module is effectively simplified. A transceiver provided in the present application is described in detail below with reference to the accompanying drawings and examples.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a transceiver 100 of the present application. In a specific embodiment, the transceiver 100 of the present application includes a signal processing module 110, a phase-locked oscillation module 120, a first switching unit 131, a second switching unit 132, and a transceiver module (not labeled).
The transceiver module includes a receiving unit 142 and a transmitting unit 141; the phase-locked oscillation module 120 includes a first phase-locked oscillation unit 121 and a second phase-locked oscillation unit 122; the first phase-locked oscillation unit 121 and the second phase-locked oscillation unit 122 are both connected with the signal processing module 110; the first switching unit 131 is connected with the first phase-locked oscillation unit 121 and the second phase-locked oscillation unit 122 respectively; a second switching unit 132 connected to the first switching unit 131, the receiving unit 142, and the transmitting unit 141, respectively; the first switching unit 131 is configured to conduct the first phase-locked oscillating unit 121 with the input terminal of the second switching unit 132, or conduct the second phase-locked oscillating unit 122 with the input terminal of the second switching unit 132; the second switching unit 132 is used for conducting the receiving unit 142 and the output terminal of the first switching unit 131, or conducting the transmitting unit 141 and the output terminal of the first switching unit 131.
Specifically, the signal processing module 110 is configured to generate or receive a signal with a frequency to be locked, where the signal with the frequency to be locked may be received from a computer, an unmanned plane, a miner's lamp that may communicate, a radio station, or an internet of things device, etc. The phase-locked oscillation module 120 is configured to perform predetermined frequency locking on a signal, for example, locking to a specific receiving frequency or transmitting frequency, where the frequency of the signal may be the same as the frequency of the signal at the time of input when the signal passes through the phase-locked oscillation module 120, or may be a multiple of the frequency of the signal at the time of input when the signal is output. The transmitted signal can be converted from a receiving frequency to a transmitting frequency, from a transmitting frequency to a receiving frequency or from a transmitting frequency to a transmitting frequency by the phase-locked oscillation module 120. The phase-locked oscillation module 120 includes a first phase-locked oscillation unit 121 and a second phase-locked oscillation unit 122 connected in parallel, which are used for modulating a transmission signal by rotating one of the phase-locked oscillation units from one time slot to the other time slot when the other phase-locked oscillation unit is used for preparing the frequency to be locked in the next time slot while one of the phase-locked oscillation units locks one frequency. The first switching unit 131 is configured to switch the access point from one time slot to another time slot, so that different phase-locked oscillating units modulate signals in adjacent time slots.
The transceiver module includes a transmitting unit 141 and a receiving unit 142, when the transmission signal is modulated by the phase-locked oscillation module 120 and is a transmitting frequency, the second switching unit 132 switches the access point, and the transmitting unit 141 is conducted with the output end of the first switching unit 131, and the transmission signal at the transmitting frequency is transmitted to the transmitting unit 141; when the transmission signal is modulated by the phase-locked oscillation module 120 and the transmission signal is at the receiving frequency, the second switching unit 132 switches the access point, and the receiving unit 142 is connected to the output end of the first switching unit 131, so that the transmission signal at the receiving frequency is transmitted to the receiving unit 142.
Unlike the prior art, the present application proposes a transceiver 100, in which a first switching unit 131 and a second switching unit 132 are connected in a back-to-back manner, and when switching an access point from one time slot to another time slot, the first switching unit 131 switches the access point to make one phase-locked oscillation unit be in a path, and the other phase-locked oscillation unit prepares the frequency to be locked in the next time slot. Meanwhile, if the signal is modulated by the phase-locked oscillation module 120 and is at the transmitting frequency, the second switching unit 132 switches the access point to enable the transmitting unit 141 to be conducted with the first switching unit 131, and if the signal is modulated by the phase-locked oscillation module 120 and is at the receiving frequency, the second switching unit 132 switches the access point to enable the receiving unit 142 to be conducted with the first switching unit 131. The transceiver 100 can meet four conversion modes of transmission signals in a radio communication system only by two sets of phase-locked circuit structures, and compared with the transceiver 100 in which two sets of phase-locked oscillation units are respectively used in the existing transmitting unit 141 and the receiving unit 142, the transceiver 100 reduces the use of devices, reduces the production cost and reduces the space occupation.
In some embodiments, the first switching unit 131 is a first switch, and the first switch includes a first input terminal, a second input terminal, and an output terminal, wherein the first input terminal is connected to the first phase-locked oscillating unit 121, the second input terminal is connected to the second phase-locked oscillating unit 122, and when the first input terminal is connected to the output terminal, the first phase-locked oscillating unit 121 is turned on with the input terminal of the second switching unit 132; when the second input terminal is connected to the output terminal, the second phase-locked oscillating unit 122 is turned on with the input terminal of the second switching unit 132. Specifically, the first switch includes an input terminal including a first input terminal and a second input terminal, and the output terminal of the first switch is connected to the second switching unit 132. The first switch switches from the first input to the second input or from the second input to the first input when switching from one time slot to another.
In some embodiments, the first phase-locked oscillation unit 121 includes a first phase-locked loop and a first voltage-controlled oscillator connected in series; the first phase-locked loop is connected with the signal processing module 110, and the first voltage-controlled oscillator is connected with the first input end; the second phase-locked oscillation unit 122 includes a second phase-locked loop and a second voltage-controlled oscillator connected in series; the second phase-locked loop is connected to the signal processing module 110, and the second voltage-controlled oscillator is connected to the second input terminal. Specifically, the voltage-controlled oscillator is used for modulating the frequency of the transmission signal to a preset frequency, and the phase-locked loop is used for ensuring that the transmission signal keeps a stable phase difference value when being input and output while the phase-locked oscillating unit modulates the frequency of the transmission signal to the preset frequency. The first phase-locked oscillating unit 121 and the second phase-locked oscillating unit 122 in this embodiment are external voltage-controlled oscillators, and are arranged in series with independent voltage-controlled oscillators, and in some other embodiments, a phase-locked loop with a built-in voltage-controlled oscillator can be used as the first phase-locked oscillating unit 121 and the second phase-locked oscillating unit 122.
In some embodiments, the second switching unit 132 is a second switch, and the second switch includes an input end, a first output end, and a second output end, where the first output end is connected to the transmitting unit 141, the second output end is connected to the receiving unit 142, and when the input end is connected to the first output end, the transceiver module is in a transmitting state; when the input end is connected with the second output end, the transceiver module is in a receiving state. Specifically, the second switch includes an input terminal and an output terminal, the output terminal includes a first output terminal and a second output terminal, and the input terminal of the second switch is connected with the output terminal of the first switch. When the transmitted signal is modulated by the phase-locked oscillation module 120 and is the transmitting frequency, the second switch is switched to the first output end, and when the transmitted signal is modulated by the phase-locked oscillation module 120 and is the receiving frequency, the second switch is switched to the second output end.
In a specific application scenario, under the time slot 1, it is determined that one phase-locked oscillating unit works, for example, the first switch is switched to the first input end, the first phase-locked oscillating unit 121 works, the predetermined frequency 1 is locked, if the predetermined frequency 1 is the transmitting frequency, the second switch is switched to the first output end, the transmitting unit 141 is switched, if the predetermined frequency 1 is the receiving frequency, the second switch is switched to the second output end, and the receiving unit 142 is switched; in the time slot 2, the first switch is switched to the second input end, the second phase-locked oscillating unit 122 works to lock the preset frequency 2, if the preset frequency 2 is the transmitting frequency, the second switch is switched to the first output end, the transmitting unit 141 is switched, if the preset frequency 2 is the receiving frequency, the second switch is switched to the second output end, and the receiving unit 142 is switched; in the time slot 3, the first switch is switched to the first input terminal, the first phase-locked oscillating unit 121 operates to lock the predetermined frequency 3, the second switch is switched to the first output terminal if the predetermined frequency 3 is the transmitting frequency, the transmitting unit 141 is switched to the second output terminal if the predetermined frequency 3 is the receiving frequency, and the receiving unit 142 is switched to the second output terminal. And so on in time slot 4, the first switch performs access point switching when the time slots are switched, the first phase-locked oscillating unit 121 and the second phase-locked oscillating unit 122 work alternately, lock the frequency of each time slot alternately, and the second switch switches the access point to select the channel of the transmitting unit 141 or the channel of the receiving unit 142 according to whether the frequency is in reception or transmission.
In some embodiments, the transmitting unit 141 includes: and the signal modulation unit 1411, where the signal modulation unit 1411 is connected to the first output end of the second switch, and is used to modulate the signal output by the first output end. An amplifying unit 1412 connected to the signal modulating unit 1411 for amplifying the signal outputted from the signal modulating unit 1411. A coupling unit 1413 is connected to the amplifying unit 1412, and is configured to couple a part of the amplified signal output and another part of the amplified signal to the signal modulating unit 1411. Specifically, the signal modulation unit 1411 is configured to modulate a signal, in this embodiment, the signal modulation unit 1411 is a cartesian feedback loop transmitter, the coupling unit 1413 is connected to the amplifying unit 1412, after the signal is modulated by the signal modulation unit 1411 and amplified by the amplifying unit 1412, a part of the signal is distorted and transmitted in a nonlinear manner, and the coupling unit 1413 is configured to feed back the transmitted distorted nonlinear signal to the signal modulation unit 1411 for compensation, so as to realize linear output of the signal of the transmitting unit 141.
In some embodiments, the receiving unit 142 includes a low noise amplifier 1421, a mixer 1422, and a signal demodulation unit 1423. The low noise amplifier 1421 is used to amplify the signal received by the transceiver 100; the mixer 1422 is respectively connected to the second output end of the second switch and the low-noise amplifier 1421, and is configured to mix a signal output by the second output end with a signal output by the low-noise amplifier 1421; the signal demodulation unit 1423 is connected to the mixer 1422 and the signal processing module, respectively, and is configured to demodulate the mixed signal. Specifically, when the transceiver module is in the on state of the receiving unit 142, the transceiver 100 receives an external signal, the low-noise amplifier 1421 amplifies the received signal, meanwhile, the second switch in the on state of the receiving unit 142 is switched to the second output terminal, and the mixer 1422 simultaneously receives and mixes the external signal output by the low-noise amplifier 1421 and the signal transmitted by the second switch. The mixed signal is transmitted to the signal demodulating unit 1423 for demodulation and then to the signal processing module connected to the signal demodulating unit 1423.
In some embodiments, the transceiver 100 further comprises a first filtering unit 150, an antenna 160, a third switch 133. The first filtering unit 150 is connected to an antenna 160 of the transceiver 100; the third switch 133 is connected to the coupling unit 1413, the low noise amplifier 1421, and the first filtering unit 150, and is used to conduct the coupling unit 1413 to the first filtering unit 150, or conduct the low noise amplifier 1421 to the first filtering unit 150. Specifically, when the transceiver module is in the transmitting unit 141 and is turned on, the third switch 133 connects the coupling unit 1413 with the first filtering unit 150, and the signal transmitted by the transmitting unit 141 is transmitted to the first filtering unit 150 through the output end of the coupling unit 1413, and the signal is transmitted to the outside by the antenna 160. When the transceiver module is in the receiving unit 142 conducting state, the third switch 133 conducts the low noise amplifier 1421 and the first filtering unit 150. The antenna 160 receives an external signal and passes the signal to the low noise amplifier 1421, and the signal is passed from the low noise amplifier 1421 to the mixer 1422.
In some embodiments, the transceiver 100 further comprises an amplifier (not shown) connected between the output of the first switching unit 131 and the input of the second switching unit 132. Specifically, the first switching unit 131 is connected back-to-back to the second switching unit 132, the first switching unit 131 switches the access point to lock the frequency of the first phase-locked oscillating unit 121 and the second phase-locked oscillating unit 122 in turn, and the second switching unit 132 switches the access point to be in the receiving path or the transmitting path according to the locked frequency. The arrangement of the amplifier between the first switching unit 131 and the second switching unit 132, such that the amplifier is shared by the first phase-locked oscillating unit 121, the second phase-locked oscillating unit 122, the transmitting unit 141 and the receiving unit 142, simplifies the circuit, and in some other embodiments, other circuits can be arranged between the first switching unit 131 and the second switching unit 132 for the first phase-locked oscillating unit 121, the second phase-locked oscillating unit 122, the transmitting unit 141 and the receiving unit 142. For example, the transceiver 100 may further include a second filtering unit disposed between the first switching unit 131 and the second switching unit 132, where one end of the second filtering unit is connected to the first switching unit 131, and the other end of the second filtering unit is connected to the second switching unit 132, where the second filtering circuit may be a low-pass filter.
The transceiver 100 of the present application, by setting the first switching unit 132 and the second switching unit 132, only one of the first phase-locked oscillating unit 121 and the second phase-locked oscillating unit 122 provides the tuned signal to the receiving unit 142 or the transmitting unit 141, so that the transceiver 100 of the present application has a foolproof function, and the problem of signal interference caused by that a plurality of phase-locked oscillating units provide the signal to the receiving unit 142 or the transmitting unit 141 at the same time is avoided.
Unlike the prior art, the present application proposes a transceiver 100, in which a first switching unit 131 and a second switching unit 132 are connected in a back-to-back manner, and when switching an access point from one time slot to another time slot, the first switching unit 131 switches the access point to make one phase-locked oscillation unit be in a path, and the other phase-locked oscillation unit prepares the frequency to be locked in the next time slot. Meanwhile, if the signal is modulated by the phase-locked oscillation module 120 and is at the transmitting frequency, the second switching unit 132 switches the access point to enable the transmitting unit 141 to be conducted with the first switching unit 131, and if the signal is modulated by the phase-locked oscillation module 120 and is at the receiving frequency, the second switching unit 132 switches the access point to enable the receiving unit 142 to be conducted with the first switching unit 131. The transceiver 100 can meet four conversion modes of transmission signals in a radio communication system only by two sets of phase-locked circuit structures, and compared with the transceiver 100 in which two sets of phase-locked oscillation units are respectively used in the existing transmitting unit 141 and the receiving unit 142, the transceiver 100 reduces the use of devices, reduces the production cost and reduces the space occupation. On the other hand, the transceiver 100 of the present application has a foolproof function, and the problem of signal interference caused by that a plurality of phase-locked oscillating units simultaneously provide signals to the receiving unit 142 or the transmitting unit 141 does not occur.
Correspondingly, in a second aspect of the application, a communication device is also provided. The communication device comprises a transceiver as described in the above embodiments.
In the several embodiments provided by the present utility model, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, such as the division of the units, merely a logical function division, and there may be additional manners of dividing the actual implementation, such as multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, or may be in electrical or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (10)
1. A transceiver, comprising:
a signal processing module;
the receiving and transmitting module comprises a receiving unit and a transmitting unit;
the phase-locked oscillation module comprises a first phase-locked oscillation unit and a second phase-locked oscillation unit, and the first phase-locked oscillation unit and the second phase-locked oscillation unit are both connected with the signal processing module; the first switching unit is respectively connected with the first phase-locked oscillating unit and the second phase-locked oscillating unit;
the second switching unit is respectively connected with the first switching unit, the receiving unit and the transmitting unit; the first switching unit is used for conducting the first phase-locked oscillating unit and the input end of the second switching unit, or conducting the second phase-locked oscillating unit and the input end of the second switching unit;
the second switching unit is used for conducting the receiving unit with the output end of the first switching unit or conducting the transmitting unit with the output end of the first switching unit.
2. The transceiver of claim 1, wherein,
the first switch unit is a first switch, the first switch comprises a first input end, a second input end and an output end, the first input end is connected with the first phase-locked oscillating unit, the second input end is connected with the second phase-locked oscillating unit, and when the first input end is connected with the output end, the first phase-locked oscillating unit is conducted with the input end of the second switch unit; when the second input end is connected with the output end, the second phase-locked oscillating unit is conducted with the input end of the second switching unit.
3. The transceiver of claim 2, wherein,
the first phase-locked oscillation unit comprises a first phase-locked loop and a first voltage-controlled oscillator which are connected in series; the first phase-locked loop is connected with the signal processing module, and the first voltage-controlled oscillator is connected with the first input end;
and/or the second phase-locked oscillation unit comprises a second phase-locked loop and a second voltage-controlled oscillator which are connected in series; the second phase-locked loop is connected with the signal processing module, and the second voltage-controlled oscillator is connected with the second input end.
4. The transceiver of claim 1, wherein,
the second switching unit is a second switch, the second switch comprises an input end, a first output end and a second output end, the first output end is connected with the transmitting unit, the second output end is connected with the receiving unit, and when the input end is connected with the first output end, the receiving and transmitting module is in a transmitting state; when the input end is connected with the second output end, the receiving and transmitting module is in a receiving state.
5. The transceiver of claim 4, wherein the transmitting unit comprises:
the signal modulation unit is connected with the first output end and used for modulating the signal output by the first output end;
the amplifying unit is connected with the signal modulating unit and is used for amplifying the signal output by the signal modulating unit;
and the coupling unit is connected with the amplifying unit and is used for coupling one part of amplified signal output and the other part of amplified signal to the signal modulation unit.
6. The transceiver of claim 5, wherein the receiving unit comprises:
a low noise amplifier for amplifying the signal received by the transceiver;
the mixer is respectively connected with the second output end and the low-noise amplifier and is used for mixing the signal output by the second output end with the signal output by the low-noise amplifier;
and the signal demodulation unit is respectively connected with the mixer and the signal processing module and is used for demodulating the mixed signals.
7. The transceiver of claim 6, wherein the transceiver further comprises:
a first filtering unit connected to an antenna of the transceiver;
and the third change-over switch is respectively connected with the coupling unit, the low-noise amplifier and the first filtering unit and is used for conducting the coupling unit with the first filtering unit or conducting the low-noise amplifier with the first filtering unit.
8. The transceiver of claim 7, wherein,
the first filtering unit is a low-pass filter.
9. The transceiver of any one of claims 1-8, further comprising:
and the amplifier is connected between the output end of the first switching unit and the input end of the second switching unit.
10. A communication device comprising a transceiver as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223398636.5U CN219372427U (en) | 2022-12-15 | 2022-12-15 | Transceiver and communication device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223398636.5U CN219372427U (en) | 2022-12-15 | 2022-12-15 | Transceiver and communication device |
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| Publication Number | Publication Date |
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| CN219372427U true CN219372427U (en) | 2023-07-18 |
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| CN202223398636.5U Active CN219372427U (en) | 2022-12-15 | 2022-12-15 | Transceiver and communication device |
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| CN (1) | CN219372427U (en) |
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