Ka-band frequency agility frequency division duplex transceiver module

Abstract

The utility model relates to a Ka frequency band frequency agility frequency division duplex transceiver module, comprising an up-conversion part and a down-conversion part, the up-conversion part upconverts an intermediate frequency signal into a radio frequency signal through secondary frequency conversion, and the up-conversion part comprises an intermediate frequency amplification filtering unit; the device comprises a first frequency mixing unit, a second intermediate frequency amplification filtering unit, a second frequency mixing unit, a radio frequency amplification filtering unit, a first local oscillator unit and a second local oscillator unit. And the down-conversion part converts the radio frequency signal into an intermediate frequency signal through secondary frequency conversion, and comprises a radio frequency amplification filtering unit, a first intermediate frequency amplification filtering unit, a primary frequency mixing unit, a second intermediate frequency amplification filtering unit, a secondary frequency mixing unit, a first local oscillator unit and a second local oscillator unit. Through the ping-pong frequency modulation mode of the local oscillator unit, the signal continuous duplex performance of the transceiver module is realized, and the module can realize parameter control and state return, and has the functions of local oscillator locking indication return, input and output signal detection, reference signal detection, signal power attenuation and parameter memory.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted radar measurement and control and communication, in particular to a Ka-band agile frequency division duplex transceiver module. Background Art

[0002] In the broadband wireless transmission system of vehicle-mounted radar measurement, control and communication, the continuity of signal transmission is increasingly required. The higher the transmission rate, the wider the transmission bandwidth. Therefore, the system adopts agile frequency conversion and duplex mode to reduce the time interval caused by frequency conversion during signal transmission and improve transmission efficiency. Modern communication systems have higher and higher requirements for automation, and digitalization and intelligence are the future development trends. In order to better use and maintain the communication system, each key part of the system is equipped with an automatic detection function to cooperate with the control and transmission of the software to output the working status of the system. Utility Model Content

[0003] In order to realize the agile frequency duplex mode of the transceiver module, the utility model provides a Ka-band agile frequency division duplex transceiver module.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A Ka-band agile frequency division duplex transceiver module, comprising a down-conversion part and an up-conversion part;

[0006] The down-conversion part includes a radio frequency amplifying and filtering unit of the down-conversion part, the input end of the radio frequency amplifying and filtering unit of the down-conversion part receives an external radio frequency signal, the output end of the radio frequency amplifying and filtering unit of the down-conversion part is connected to the input end of the primary mixing unit, the output end of the primary mixing unit is connected to the input end of an intermediate frequency amplifying and filtering unit, the output end of the intermediate frequency amplifying and filtering unit is connected to the input end of the secondary mixing unit, the output end of the secondary mixing unit is connected to the second intermediate frequency amplifying and filtering unit, the output end of the second intermediate frequency amplifying and filtering unit outputs an intermediate frequency output signal, a local oscillator unit of the down-conversion part provides a local oscillator signal for the primary mixing unit, and the two local oscillators of the down-conversion part are connected to the secondary mixing unit. The up-conversion part includes an intermediate frequency amplifying and filtering unit, which receives an intermediate frequency input signal, an output end of the intermediate frequency amplifying and filtering unit is connected to an input end of a primary mixing unit, an output end of the primary mixing unit is connected to an input end of a second intermediate frequency amplifying and filtering unit, an output end of the second intermediate frequency amplifying and filtering unit is connected to an input end of a secondary mixing unit, an output end of the secondary mixing unit is connected to an input end of a radio frequency amplifying and filtering unit of the up-conversion part, an output of the radio frequency amplifying and filtering unit is a transmitting radio frequency output signal, a local oscillator unit of the up-conversion part provides a local oscillator signal for the primary mixing unit, and two local oscillators of the up-conversion part provide a local oscillator signal for the secondary mixing unit.

[0007] The down-conversion part converts the RF signal into an intermediate frequency signal through secondary frequency conversion; through the ping-pong frequency modulation mode of the local oscillator unit, the continuous duplex performance of the transceiver module signal is achieved, and the up-conversion part converts the intermediate frequency signal into an RF signal through secondary frequency conversion.

[0008] Preferably, the down-conversion part, the RF amplification and filtering unit includes a first isolator, the input end of the first isolator is connected to the external input receiving RF signal, the output end of the first isolator is connected to the input end of the second isolator after passing through the first switch filter group, the output end of the second isolator 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 third isolator, and the output end of the third isolator is connected to the input end of the primary mixing unit;

[0009] Preferably, the down-conversion part, the primary mixing unit includes a first mixer, the RF input end of the first mixer is connected to the output end of the RF amplification and filtering unit of the down-conversion part, the intermediate frequency output end of the first mixer is connected to the input end of an intermediate frequency amplification and filtering unit, the output end of a local oscillator unit of the down-conversion part 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 first filter, the output end of the first filter is connected to the input end of the fourth isolator, and the output end of the fourth isolator is connected to the local oscillator port of the first mixer.

[0010] Preferably, the down-conversion part, the intermediate frequency amplification and filtering unit comprises a third amplifier, the input end of the third amplifier is connected to the output end of the primary frequency mixing unit, the output end of the third amplifier is connected to the input end of the second band-pass filter, the output end of the second band-pass filter is connected to the input end of the first digitally controlled attenuator; the output end of the first digitally controlled attenuator is connected to the input end of the first low-pass filter, and the output end of the first low-pass filter is connected to the input end of the secondary frequency mixing unit;

[0011] Preferably, the down-conversion part, the secondary mixing unit includes a third filter and a second mixer, the RF input end of the second mixer is connected to the output end of an intermediate frequency amplification and filtering unit, the intermediate frequency output end of the second mixer is connected to the input end of a second intermediate frequency amplification and filtering unit, the input end of the third bandpass filter is connected to the output end of the two local oscillator units of the down-conversion part, and the output end of the third bandpass filter is connected to the local oscillator port of the second mixer.

[0012] Preferably, the down-conversion part, the second intermediate frequency amplification and filtering unit includes a fourth band-pass filter, the input end of the fourth band-pass filter is connected to the output end of the secondary mixing unit, the output end of the fourth band-pass filter is connected to the input end of the fourth amplifier, and the output end of the fourth amplifier is connected to the input end of the second low-pass filter; the output end of the second low-pass filter is the intermediate frequency input end of the down-conversion part.

[0013] Preferably, the down-conversion part, the local oscillator unit comprises a first power divider, the input end of the first power divider is connected to an external reference, the output end of the first power divider is respectively connected to the input ends of a first phase-locked loop and a second phase-locked loop, the output ends of the first phase-locked loop and the second phase-locked loop are respectively connected to the input end of a first switch, and the output end of the first switch is connected to the input end of a primary mixing unit;

[0014] Preferably, in the down-conversion part, the second local oscillator unit comprises a third phase-locked loop, the output end of the first power divider is connected to the input end of the third phase-locked loop, and the output end of the third phase-locked loop is connected to the input end of the secondary mixing unit.

[0015] Preferably, the up-conversion part, the intermediate frequency amplification and filtering input unit comprises a fifth band-pass filter and a fifth amplifier, the input end of the fifth band-pass filter is connected to the external input transmission intermediate frequency signal, the output end of the fifth band-pass filter is connected to the input end of the fifth amplifier, and the output end of the fifth amplifier is connected to the input end of the primary mixing unit;

[0016] Preferably, the up-conversion part, the primary mixing unit includes a sixth bandpass filter and a third mixer, the intermediate frequency input end of the third mixer is connected to the output end of an intermediate frequency amplification and filtering unit, the radio frequency output end of the third mixer is connected to the input end of a second intermediate frequency amplification and filtering unit, the input end of the sixth bandpass filter is connected to the local oscillator port of the third mixer, and the input end of the sixth bandpass filter is connected to the output end of a local oscillator unit of the up-conversion part.

[0017] Preferably, the up-conversion part and the second intermediate frequency amplification and filtering unit include a sixth amplifier, the input end of the sixth amplifier is connected to the output end of the primary mixing unit, the output end of the sixth amplifier is connected to the input end of the seventh band-pass filter, the output end of the seventh band-pass filter is connected to the input end of the second digitally controlled attenuator, the output end of the second digitally controlled attenuator is connected to the input end of the third low-pass filter, and the output end of the third low-pass filter is connected to the input end of the secondary mixing unit.

[0018] Preferably, the up-conversion part, the secondary mixing unit includes a seventh amplifier, an eighth band-pass filter, a fifth isolator and a fourth mixer, the intermediate frequency input end of the fourth mixer is connected to the output end of the second intermediate frequency amplification and filtering unit, the radio frequency output end of the fourth mixer is connected to the input end of the radio frequency amplification and filtering unit of the up-conversion part, the output end of the fifth isolator is connected to the local oscillator port of the fourth mixer, the input end of the fifth isolator is connected to the output end of the eighth band-pass filter, the input end of the eighth band-pass filter is connected to the output end of the seventh amplifier, and the input end of the seventh amplifier is connected to the output ends of the two local oscillator units of the up-conversion part.

[0019] Preferably, the up-conversion part, the RF amplification and filtering unit includes a sixth isolator, the input end of the sixth isolator is connected to the output end of the secondary mixing unit, the output end of the sixth isolator is connected to the input end of the eighth amplifier, the output end of the eighth amplifier is connected to the input end of the seventh isolator, the output end of the seventh isolator is connected to the input end of the second switching filter group, the output end of the second switching filter group is connected to the eighth isolator, and the output end of the eighth isolator is the transmitting RF output.

[0020] Preferably, the up-conversion part and the local oscillator unit include a fourth phase-locked loop, the output end of the first power divider of the up-conversion part is connected to the input end of the fourth phase-locked loop, and the output end of the fourth phase-locked loop is connected to the amplifier input end of the primary mixing unit of the up-conversion part;

[0021] Preferably, in the up-conversion part, the output end of the first power divider of the up-conversion part is respectively connected to the input end of the fifth phase-locked loop and the sixth phase-locked loop, the output end of the fifth phase-locked loop and the sixth phase-locked loop are respectively connected to the input end of the second switch, and the output end of the second switch is connected to the amplifier input end of the secondary mixing unit of the up-conversion part.

[0022] The beneficial effects of adopting the above technical solution are:

[0023] The utility model discloses a Ka-band agile frequency division duplex transceiver module, which realizes an agile frequency division duplex mode of the transceiver module through a radio frequency amplification and filtering unit, a ping-pong frequency hopping local oscillator unit, an intermediate frequency amplification and filtering unit and the like.

[0024] By selecting bandpass filters, mixers, digitally controlled attenuators, isolators, amplifiers and other devices, the RF input frequency and IF output frequency can be extended to other frequency bands; the local oscillator signal frequency, frequency step and channel gain can be adjusted as needed. It can be applied to a wider range of fields and meet more needs.

[0025] Through the ping-pong frequency modulation mode of the local oscillator unit, the continuous duplex performance of the transceiver module signal is achieved. The module can realize parameter control and status reporting, with local oscillator lock indication reporting, input and output signal detection, reference signal detection, signal power attenuation, and parameter memory function.

[0026] Please refer to the detailed description of the specific implementation method. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is the overall principle block diagram of the utility model;

[0028] Figure 2 This is a principle block diagram of the radio frequency amplification and filtering unit of the down-conversion part of the utility model;

[0029] Figure 3 This is a principle block diagram of the primary mixing unit of the down-conversion part of the utility model;

[0030] Figure 4 This is a principle block diagram of an intermediate frequency amplification and filtering unit of the down-conversion part of the utility model;

[0031] Figure 5 This is a principle block diagram of the secondary mixing unit of the down-conversion part of the utility model;

[0032] Figure 6 This is a principle block diagram of the second intermediate frequency amplification and filtering unit of the down-conversion part of the utility model;

[0033] Figure 7 This is a principle block diagram of a local oscillator unit in the down-conversion part of the utility model;

[0034] Figure 8 It is a principle block diagram of two local oscillator units of the down-conversion part of the utility model;

[0035] Fig. 9 This is a principle block diagram of an intermediate frequency amplification filter input unit of the up-conversion part of the utility model;

[0036] Fig.10 This is a principle block diagram of the primary mixing unit of the up-conversion part of the utility model;

[0037] Fig.11 This is a principle block diagram of the second intermediate frequency amplification and filtering unit of the up-conversion part of the utility model;

[0038] Fig.12 This is a principle block diagram of the secondary mixing unit of the up-conversion part of the utility model;

[0039] Fig.13 This is a principle block diagram of the radio frequency amplification and filtering unit of the up-conversion part of the utility model;

[0040] Fig.14This is a principle block diagram of a local oscillator unit in the up-conversion part of the utility model;

[0041] Fig.15 It is a principle block diagram of two local oscillator units in the up-conversion part of the utility model. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0043] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0044] like Figure 1 to Figure 15 As shown, the utility model discloses a Ka-band agile frequency division duplex transceiver module, including an up-conversion part and a down-conversion part. The down-conversion part converts the radio frequency signal into an intermediate frequency signal through secondary frequency conversion. It includes a radio frequency amplification and filtering unit, an intermediate frequency amplification and filtering unit, a primary mixing unit, a second intermediate frequency amplification and filtering unit, a secondary mixing unit, a local oscillator unit, and a second local oscillator unit. The input end of the radio frequency amplification and filtering unit of the down-conversion part is connected to the external input receiving radio frequency signal, the output end of the radio frequency amplification and filtering unit is connected to the input end of the primary mixing unit, the output end of the primary mixing unit is connected to the input end of an intermediate frequency amplification and output unit, the output end of the intermediate frequency amplification and output unit is connected to the input end of the secondary mixing unit, the output end of the secondary mixing unit is connected to the second intermediate frequency amplification and filtering unit, the output end of the second intermediate frequency amplification and filtering unit is the receiving intermediate frequency output signal, the local oscillator unit provides a local oscillator signal for the primary mixing unit, and the second local oscillator unit provides a local oscillator signal for the secondary mixing unit. Through the ping-pong frequency modulation mode of the local oscillator unit, the continuous duplex performance of the transceiver module signal is achieved.

[0045] The up-conversion part converts the intermediate frequency signal into an RF signal through secondary frequency conversion. It includes an intermediate frequency amplification and filtering unit, a primary mixing unit, a second intermediate frequency amplification and filtering unit, a secondary mixing unit, an RF amplification and filtering unit, a local oscillator unit, and a second local oscillator unit; an intermediate frequency amplification and filtering input unit of the up-conversion part is connected to the intermediate frequency input signal port, the output end of the intermediate frequency amplification and filtering unit is connected to the input end of the primary mixing unit, the output end of the primary mixing unit is connected to the second intermediate frequency amplification and filtering unit, the output end of the second intermediate frequency amplification and filtering unit is connected to the input end of the secondary mixing unit, the output end of the secondary mixing unit is connected to the input end of the RF amplification and filtering output unit, the output of the RF amplification and filtering output unit is the transmission RF output signal, the local oscillator unit provides a local oscillator signal for the primary mixing unit, and the second local oscillator unit provides a local oscillator signal for the secondary mixing unit.

[0046] The RF amplification and filtering unit includes a first isolator, a first switch filter group, a second isolator, a first amplifier, and a third isolator; the input end of the first isolator is connected to the external input received RF signal, the output end of the first isolator is connected to the input end of the second isolator after passing through the first switch filter group, the output end of the second isolator 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 third isolator, and the output end of the third isolator is connected to the input end of the primary mixing unit.

[0047] The primary frequency mixing unit includes a second amplifier, a first bandpass filter, a fourth isolator, and a first mixer; the RF input end of the first mixer is connected to the output end of the RF amplification and filtering unit, and the intermediate frequency output end of the first mixer is connected to the input end of an intermediate frequency amplification and filtering unit. The input end of the second amplifier is connected to the output end of a local oscillator unit, the output end of the second amplifier is connected to the input end of the first bandpass filter, the output end of the first bandpass filter is connected to the input end of the fourth isolator, and the output end of the fourth isolator is connected to the local oscillator port of the first mixer.

[0048] The intermediate frequency amplification and filtering unit includes a third amplifier, a second bandpass filter, a first digitally controlled attenuator, and a first low-pass filter; the input end of the third amplifier is connected to the output end of the primary mixing unit, the output end of the third amplifier is connected to the input end of the second bandpass filter, and the output end of the second bandpass filter is connected to the input end of the first digitally controlled attenuator; the output end of the first digitally controlled attenuator is connected to the input end of the first low-pass filter, and the output end of the first low-pass filter is connected to the input end of the secondary mixing unit.

[0049] The secondary frequency mixing unit includes a third bandpass filter and a second mixer; the RF input end of the second mixer is connected to the output end of an intermediate frequency amplification and filtering unit, and the intermediate frequency output end of the second mixer is connected to the input end of a second intermediate frequency amplification and filtering unit. The input end of the third bandpass filter is connected to the output end of the second local oscillator unit, and the output end of the third bandpass filter is connected to the local oscillator port of the second mixer.

[0050] The second intermediate frequency amplification and filtering unit includes a fourth bandpass filter, a fourth amplifier, and a second low-pass filter; the input end of the fourth bandpass filter is connected to the output end of the secondary mixing unit, the output end of the fourth bandpass filter is connected to the input end of the fourth amplifier, and the output end of the fourth amplifier is connected to the input end of the second low-pass filter; the output end of the second low-pass filter is the intermediate frequency input end of the down-conversion part.

[0051] The local oscillator unit includes a first power divider, a first switch, a first phase-locked loop, and a second phase-locked loop. The input end of the first power divider is connected to an external reference, the output end of the first power divider is connected to the input ends of the first phase-locked loop and the second phase-locked loop respectively, the output ends of the first phase-locked loop and the second phase-locked loop are connected to the input end of the first switch respectively, and the output end of the first switch is connected to the amplifier input end of the primary mixing unit.

[0052] The two local oscillator units include a third phase-locked loop. The output end of the first power divider is connected to the input end of the third phase-locked loop, and the output end of the third phase-locked loop is connected to the filter input end of the secondary frequency mixing unit.

[0053] The intermediate frequency amplification and filtering input unit includes a fifth bandpass filter and a fifth amplifier; the input end of the fifth bandpass filter is connected to the external input transmission intermediate frequency signal, the output end of the fifth bandpass filter is connected to the input end of the fifth amplifier, and the output end of the fifth amplifier is connected to the input end of the primary mixing unit.

[0054] The primary frequency mixing unit includes a sixth bandpass filter and a third mixer; the intermediate frequency input end of the third mixer is connected to the output end of an intermediate frequency amplification and filtering unit, and the radio frequency output end of the third mixer is connected to the input end of an intermediate frequency amplification and filtering unit. The input end of the sixth bandpass filter is connected to the local oscillator port of the third mixer, and the input end of the sixth bandpass filter is connected to the output end of a local oscillator unit.

[0055] The second intermediate frequency amplification and filtering unit includes a seventh bandpass filter, a sixth amplifier, a second digitally controlled attenuator, and a third low-pass filter; the input end of the sixth amplifier is connected to the output end of the primary mixing unit, the output end of the sixth amplifier is connected to the input end of the seventh bandpass filter, the output end of the seventh bandpass filter is connected to the input end of the second digitally controlled attenuator, the output end of the second digitally controlled attenuator is connected to the input end of the third low-pass filter, and the output end of the third low-pass filter is connected to the input end of the secondary mixing unit.

[0056] The secondary frequency mixing unit includes a seventh amplifier, an eighth bandpass filter, a fifth isolator and a fourth mixer; the intermediate frequency input end of the fourth mixer is connected to the output end of the second intermediate frequency amplification and filtering unit, and the radio frequency output end of the fourth mixer is connected to the input end of the radio frequency amplification and filtering unit. The output end of the fifth isolator is connected to the local oscillator port of the fourth mixer, the input end of the fifth isolator is connected to the output end of the eighth bandpass filter, the input end of the eighth bandpass filter is connected to the output end of the seventh amplifier, and the input end of the seventh amplifier is connected to the output end of the second local oscillator unit.

[0057] The radio frequency amplification and filtering unit includes a sixth isolator, an eighth amplifier, a seventh isolator, a second switch filter group, and an eighth isolator; the input end of the sixth isolator is connected to the output end of the mixing unit, and the output end of the sixth isolator is connected to the input end of the eighth amplifier; the output end of the eighth amplifier is connected to the input end of the seventh isolator, the output end of the seventh isolator is connected to the input end of the second switch filter group, the output end of the second switch filter group is connected to the eighth isolator, and the output end of the eighth isolator is the transmitting radio frequency output.

[0058] The local oscillator unit includes a fourth phase-locked loop. The output end of the first power divider is connected to the input end of the fourth phase-locked loop, and the output end of the fourth phase-locked loop is connected to the amplifier input end of the primary frequency mixing unit.

[0059] The two local oscillator units include a second switch, a fifth phase-locked loop, and a sixth phase-locked loop. The output end of the first power divider is connected to the input ends of the fifth phase-locked loop and the sixth phase-locked loop respectively, the output ends of the fifth phase-locked loop and the sixth phase-locked loop are connected to the input end of the second switch respectively, and the output end of the second switch is connected to the amplifier input end of the secondary mixing unit.

[0060] illustrate:

[0061] like Figure 1As shown, a Ka-band agile frequency division duplex transceiver module includes an up-conversion part and a down-conversion part. The down-conversion part includes a radio frequency amplification and filtering unit, an intermediate frequency amplification and filtering unit, a primary mixing unit, a second intermediate frequency amplification and filtering unit, a secondary mixing unit, a local oscillator unit, and a second local oscillator unit; the up-conversion part includes an intermediate frequency amplification and filtering unit, a primary mixing unit, a second intermediate frequency amplification and filtering unit, a secondary mixing unit, a radio frequency amplification and filtering unit, a local oscillator unit, and a second local oscillator unit. The input end of the RF amplifying unit of the down-conversion part is connected to the external 22.0-23.2 GHz receiving RF input, and its output end is connected to the input end of the primary mixing unit of the down-conversion part, the local oscillator input end of the primary mixing unit of the down-conversion part is connected to the local oscillator output of 18.1-19.3 GHz, the output end of the primary mixing unit of the down-conversion part is connected to the input end of the second intermediate frequency amplifying and filtering unit, the output end of the second intermediate frequency amplifying and filtering unit is connected to the input end of the secondary mixing unit of the down-conversion part, the local oscillator input end of the secondary mixing unit of the down-conversion part is connected to the second local oscillator output of 3.02 GHz, and the output end of the secondary mixing unit is connected to the input end of the intermediate frequency amplifying unit of the down-conversion part. The output end of the intermediate frequency amplifying and outputting unit outputs a 0.88 GHz intermediate frequency signal. The input end of the intermediate frequency amplification and output unit of the up-conversion part is connected to an external 0.88GHz transmitting intermediate frequency input, and the output end thereof is connected to the input end of the primary mixing unit of the up-conversion part, the local oscillator input end of the mixing unit of the up-conversion part is connected to an external 3.02GHz local oscillator output end, the output end of the primary mixing unit of the up-conversion part is connected to the input end of the second intermediate frequency amplification and filtering unit, the output end of the second intermediate frequency amplification and filtering unit is connected to the input end of the secondary mixing unit, the local oscillator input end of the secondary mixing unit of the down-conversion part is connected to the second local oscillator output of 18.1 to 19.3GHz, the local oscillator output end of the secondary mixing unit is connected to the input end of the radio frequency amplification unit of the up-conversion part, and the output end of the radio frequency amplification and output unit outputs a transmitting radio frequency output signal of 22.0 to 23.2GHz.

[0062] like Figure 2 As shown, the RF amplification and filtering unit of the down-conversion part includes a first isolator, a first switch filter group, a second isolator, a first amplifier, and a third isolator; the external input 22.0-23.2GHz received RF signal is sent to the first switch filter group after passing through the first isolator, and the first switch filter group is used to select the frequency band and suppress the image frequency; the output end of the first isolator is connected to the input end of the second isolator after passing through the first switch filter group. The output end of the second isolator is connected to the input end of the first amplifier, and the amplifier amplifies the input RF signal. The output end of the first amplifier is connected to the input end of the third isolator, and the output end of the third isolator is connected to the input end of the primary mixing unit. The isolator is used to improve the RF input standing wave.

[0063] like Figure 3 As shown, the primary mixing unit of the down-conversion part includes a second amplifier, a first bandpass filter, a fourth isolator, and a first mixer; the 18.1-19.3 GHz signal output by a local oscillator unit enters the first mixer via the second amplifier, the first bandpass filter, and the fourth isolator, and the second amplifier amplifies the local oscillator signal to a sufficient power and then sends it to the local oscillator input end of the first mixer; the first bandpass filter suppresses the clutter generated by the local oscillator unit, and the isolator is used to improve the standing wave of the channel. The 22.0-23.2 GHz RF signal sent by the RF amplification unit is connected to the RF input end of the first mixer; the first mixer mixes the RF signal and the local oscillator signal, and outputs a 3.9 GHz signal to an intermediate frequency amplification unit of the down-conversion part.

[0064] like Figure 4 As shown, an intermediate frequency amplification unit of the down-conversion part includes a third amplifier, a second band-pass filter, a first digitally controlled attenuator, and a first low-pass filter; a 3.9 GHz signal sent from the primary mixing unit of the down-conversion part enters the third amplifier, the third amplifier amplifies the signal and then sends it to the second band-pass filter, and the second band-pass filter effectively suppresses the spurious generated by the mixing; the signal passes through the first digitally controlled attenuator and the first low-pass filter and is output to the secondary mixing unit, the first digitally controlled attenuator adjusts the amplitude of the signal, and the first low-pass filter effectively suppresses the high-frequency spurious generated by the mixing.

[0065] like Figure 5 As shown, the secondary mixing unit of the down-conversion part includes a third bandpass filter and a first mixer; the 3.02GHz signal output by the second local oscillator unit enters the first mixer through the third bandpass filter; the third bandpass filter suppresses the noise generated by the second local oscillator unit, and the second mixer mixes an intermediate frequency signal and a second local oscillator signal, and outputs a 0.88GHz signal to the second intermediate frequency amplification unit of the down-conversion part.

[0066] like Figure 6 As shown, the second intermediate frequency amplification unit of the down-conversion part includes a fourth bandpass filter, a fourth amplifier, and a second low-pass filter; the 0.88GHz signal sent by the secondary mixing unit of the down-conversion part is sent to the fourth amplifier through the fourth bandpass filter, the fourth bandpass filter effectively suppresses the spurious generated by the mixing, and the fourth amplifier amplifies the second intermediate frequency signal; after passing through the second low-pass filter, it is output from the intermediate frequency output port. The second low-pass filter effectively suppresses the high-frequency spurious generated by the mixing.

[0067] like Figure 7As shown, a local oscillator unit of the down-conversion part includes a first power divider, a first phase-locked loop, a second phase-locked loop, and a first switch; the input end of the first power divider is connected to an external reference 100MHz, the output end of the first power divider is respectively connected to the input ends of the first phase-locked loop and the second phase-locked loop, the output ends of the first phase-locked loop and the second phase-locked loop are respectively connected to the input ends of the first switch, and the output end of the first switch is connected to the amplifier input end of the primary mixer unit. The first phase-locked loop and the second phase-locked loop generate 18.1-19.3GHz signals and output them to the primary mixer unit of the down-conversion part.

[0068] like Figure 8 As shown, the two local oscillator units of the down-conversion part include a third phase-locked loop. The output end of the first power divider is connected to the input end of the third phase-locked loop, and the third phase-locked loop generates a 3.02 GHz signal and outputs it to the secondary mixing unit of the down-conversion part.

[0069] like Fig. 9 As shown, an intermediate frequency amplification and filtering unit of the up-conversion part includes a fifth bandpass filter and a fifth amplifier; a 0.88 GHz signal is input into the intermediate frequency input end and the noise in the intermediate frequency signal is effectively suppressed through the fifth bandpass filter; the 0.88 GHz signal is finally output to the primary mixing unit of the up-conversion part through the fifth amplifier.

[0070] like Fig.10 As shown, the primary mixing unit of the up-conversion part includes a third mixer and a sixth bandpass filter; a 3.02 GHz signal input by a local oscillator unit is sent to the local oscillator input end of the third mixer via the sixth bandpass filter; a 0.88 GHz intermediate frequency signal sent by an intermediate frequency amplification and filtering unit is connected to the intermediate frequency input end of the third mixer; the third mixer mixes the intermediate frequency signal and the local oscillator signal, and outputs a 3.9 GHz signal to the second intermediate frequency amplification unit of the up-conversion part.

[0071] like Fig.11 As shown, the second intermediate frequency amplification and filtering unit of the up-conversion part includes a sixth amplifier, a seventh bandpass filter, a second digitally controlled attenuator, and a third low-pass filter; the primary mixing unit outputs a 3.9GHz signal which is input into the seventh bandpass filter via the sixth amplifier, and the seventh bandpass filter effectively suppresses the spurious generated by the mixing. The output end of the seventh bandpass filter is connected to the input end of the second digitally controlled attenuator, and the signal is output to the secondary mixing unit after passing through the second digitally controlled attenuator and the third low-pass filter. The second digitally controlled attenuator adjusts the amplitude of the signal, and the third low-pass filter effectively suppresses the high-frequency spurious generated by the mixing.

[0072] like Fig.12As shown, the secondary mixing unit of the up-conversion part includes a seventh amplifier, an eighth bandpass filter, a fifth isolator, and a fourth mixer; the 18.1-19.3 GHz signal output by the second local oscillator unit enters the fourth mixer via the seventh amplifier, the eighth bandpass filter, and the fifth isolator, and the seventh amplifier amplifies the local oscillator signal to a sufficient power and then sends it to the local oscillator input end of the fourth mixer; the eighth bandpass filter suppresses the clutter generated by the second local oscillator unit, and the isolator is used to improve the standing wave of the channel. The 3.9 GHz signal sent by the second intermediate frequency amplification and filtering unit is connected to the intermediate frequency input end of the fourth mixer; the fourth mixer mixes the intermediate frequency signal and the local oscillator signal, and outputs a 22.0-23.2 GHz signal to the RF amplification and filtering unit of the up-conversion part.

[0073] like Fig.13 As shown, the RF amplification unit of the up-conversion part includes a sixth isolator, an eighth amplifier, a seventh isolator, a second switch filter group, and an eighth isolator; the 22.0-23.2 GHz signal sent from the secondary mixing unit of the up-conversion part is amplified by the sixth bandpass isolator and the eighth amplifier and then sent to the seventh isolator, and then enters the second switch filter group through the seventh isolator. The first switch filter group is used for selecting the frequency band and suppressing the image frequency; finally, it is output through the eighth isolator.

[0074] like Fig.14 As shown, a local oscillator unit of the up-conversion part includes a fourth phase-locked loop. The output end of the first power divider is connected to the input end of the fourth phase-locked loop, and the third phase-locked loop generates a 3.02 GHz signal and outputs it to the primary mixing unit of the down-conversion part.

[0075] like Fig.15 As shown, the two local oscillator units of the up-conversion part include the fifth phase-locked loop, the sixth phase-locked loop, and the second switch; the output end of the first power divider is connected to the input end of the fifth phase-locked loop and the sixth phase-locked loop respectively, the output end of the fifth phase-locked loop and the sixth phase-locked loop is connected to the input end of the second switch respectively, and the output end of the second switch is connected to the amplifier input end of the secondary mixing unit. The fifth phase-locked loop and the sixth phase-locked loop generate 18.1-19.3 GHz signals and output them to the secondary mixing unit of the down-conversion part.

[0076] After this application was run confidentially for a period of time, the technical staff reported that the benefits were:

[0077] By selecting bandpass filters, mixers, digitally controlled attenuators, isolators, amplifiers and other devices, the RF input frequency and IF output frequency can be extended to other frequency bands; the local oscillator signal frequency, frequency step and channel gain can be adjusted as needed. It can be applied to a wider range of fields and meet more needs.

[0078] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A Ka-band agile frequency division duplex transceiver module, characterized in that: The invention comprises a down-conversion part and an up-conversion part; the down-conversion part comprises a radio frequency amplifying and filtering unit of the down-conversion part, the input end of the radio frequency amplifying and filtering unit of the down-conversion part receives a radio frequency signal input from the outside, the output end of the radio frequency amplifying and filtering unit of the down-conversion part is connected to the input end of a primary frequency mixing unit, the output end of the primary frequency mixing unit is connected to the input end of an intermediate frequency amplifying and filtering unit, the output end of the intermediate frequency amplifying and filtering unit is connected to the input end of a secondary frequency mixing unit, the output end of the secondary frequency mixing unit is connected to a second intermediate frequency amplifying and filtering unit, the output end of the second intermediate frequency amplifying and filtering unit outputs an intermediate frequency output signal, a local oscillator unit of the down-conversion part provides a local oscillator signal for the primary frequency mixing unit, and the two local oscillators of the down-conversion part are connected to the input end of a secondary frequency mixing unit. The up-conversion part includes an intermediate frequency amplifying and filtering unit, which receives an intermediate frequency input signal. The output end of the intermediate frequency amplifying and filtering unit is connected to the input end of the primary mixing unit, the output end of the primary mixing unit is connected to the input end of the second intermediate frequency amplifying and filtering unit, the output end of the second intermediate frequency amplifying and filtering unit is connected to the input end of the secondary mixing unit, the output end of the secondary mixing unit is connected to the input end of the radio frequency amplifying and filtering unit of the up-conversion part, the output of the radio frequency amplifying and filtering unit is the transmitting radio frequency output signal, one local oscillator unit of the up-conversion part provides a local oscillator signal for the primary mixing unit, and two local oscillators of the up-conversion part provide a local oscillator signal for the secondary mixing unit.

2. The Ka-band agile frequency division duplex transceiver module according to claim 1, characterized in that: The down-conversion part, the RF amplification and filtering unit includes a first isolator, the input end of the first isolator is connected to the external input receiving RF signal, the output end of the first isolator is connected to the input end of the second isolator after passing through the first switch filter group, the output end of the second isolator 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 third isolator, and the output end of the third isolator is connected to the input end of the primary mixing unit; The primary mixing unit includes a first mixer, a radio frequency input end of the first mixer is connected to an output end of a radio frequency amplifying and filtering unit of a down-conversion part, an intermediate frequency output end of the first mixer is connected to an input end of an intermediate frequency amplifying and filtering unit, an output end of a local oscillator unit of the down-conversion part is connected to an input end of a second amplifier, an output end of the second amplifier is connected to an input end of a first filter, an output end of the first filter is connected to an input end of a fourth isolator, and an output end of the fourth isolator is connected to a local oscillator port of the first mixer.

3. The Ka-band agile frequency division duplex transceiver module according to claim 1, characterized in that: The down-conversion part, the intermediate frequency amplification and filtering unit includes a third amplifier, the input end of the third amplifier is connected to the output end of the primary mixing unit, the output end of the third amplifier is connected to the input end of the second band-pass filter, and the output end of the second band-pass filter is connected to the input end of the first digitally controlled attenuator; the output end of the first digitally controlled attenuator is connected to the input end of the first low-pass filter, and the output end of the first low-pass filter is connected to the input end of the secondary mixing unit; the secondary mixing unit includes a third filter and a second mixer, the radio frequency input end of the second mixer is connected to the output end of an intermediate frequency amplification and filtering unit, the intermediate frequency output end of the second mixer is connected to the input end of a second intermediate frequency amplification and filtering unit, the input end of the third band-pass filter is connected to the output end of the two local oscillator units of the down-conversion part, and the output end of the third band-pass filter is connected to the local oscillator port of the second mixer.

4. The Ka-band agile frequency division duplex transceiver module according to claim 1, characterized in that: The down-conversion part, the second intermediate frequency amplification and filtering unit includes a fourth band-pass filter, the input end of the fourth band-pass filter is connected to the output end of the secondary mixing unit, the output end of the fourth band-pass filter is connected to the input end of the fourth amplifier, and the output end of the fourth amplifier is connected to the input end of the second low-pass filter; the output end of the second low-pass filter is the intermediate frequency input end of the down-conversion part.

5. The Ka-band agile frequency division duplex transceiver module according to claim 1, characterized in that: The down-conversion part, the local oscillator unit includes a first power divider, the input end of the first power divider is connected to the external reference, the output end of the first power divider is respectively connected to the input ends of the first phase-locked loop and the second phase-locked loop, the output ends of the first phase-locked loop and the second phase-locked loop are respectively connected to the input end of the first switch, and the output end of the first switch is connected to the input end of the primary mixing unit; The two local oscillator units in the down-conversion part include a third phase-locked loop, the output end of the first power divider is connected to the input end of the third phase-locked loop, and the output end of the third phase-locked loop is connected to the input end of the secondary mixing unit.

6. The Ka-band agile frequency division duplex transceiver module according to claim 1, characterized in that: The up-conversion part, the intermediate frequency amplification and filtering input unit includes a fifth band-pass filter and a fifth amplifier, the input end of the fifth band-pass filter is connected to the external input transmission intermediate frequency signal, the output end of the fifth band-pass filter is connected to the input end of the fifth amplifier, and the output end of the fifth amplifier is connected to the input end of the primary mixing unit; The primary mixing unit includes a sixth bandpass filter and a third mixer, the intermediate frequency input end of the third mixer is connected to the output end of an intermediate frequency amplification and filtering unit, the radio frequency output end of the third mixer is connected to the input end of a second intermediate frequency amplification and filtering unit, the input end of the sixth bandpass filter is connected to the local oscillator port of the third mixer, and the input end of the sixth bandpass filter is connected to the output end of a local oscillator unit of the up-conversion part.

7. The Ka-band agile frequency division duplex transceiver module according to claim 1, characterized in that: The up-conversion part, the second intermediate frequency amplification and filtering unit includes a sixth amplifier, the input end of the sixth amplifier is connected to the output end of the primary mixing unit, the output end of the sixth amplifier is connected to the input end of the seventh band-pass filter, the output end of the seventh band-pass filter is connected to the input end of the second digitally controlled attenuator, the output end of the second digitally controlled attenuator is connected to the input end of the third low-pass filter, and the output end of the third low-pass filter is connected to the input end of the secondary mixing unit.

8. The Ka-band agile frequency division duplex transceiver module according to claim 1, characterized in that: The up-conversion part, the secondary mixing unit includes a seventh amplifier, an eighth band-pass filter, a fifth isolator and a fourth mixer, the intermediate frequency input end of the fourth mixer is connected to the output end of the second intermediate frequency amplification and filtering unit, the radio frequency output end of the fourth mixer is connected to the input end of the radio frequency amplification and filtering unit of the up-conversion part, the output end of the fifth isolator is connected to the local oscillator port of the fourth mixer, the input end of the fifth isolator is connected to the output end of the eighth band-pass filter, the input end of the eighth band-pass filter is connected to the output end of the seventh amplifier, and the input end of the seventh amplifier is connected to the output ends of the two local oscillator units of the up-conversion part.

9. The Ka-band agile frequency division duplex transceiver module according to claim 1, characterized in that: The up-conversion part, the RF amplification and filtering unit includes a sixth isolator, the input end of the sixth isolator is connected to the output end of the secondary mixing unit, the output end of the sixth isolator is connected to the input end of the eighth amplifier, the output end of the eighth amplifier is connected to the input end of the seventh isolator, the output end of the seventh isolator is connected to the input end of the second switch filter group, the output end of the second switch filter group is connected to the eighth isolator, and the output end of the eighth isolator is the transmitting RF output.

10. The Ka-band agile frequency division duplex transceiver module according to claim 1, characterized in that: The up-conversion part, the local oscillator unit includes a fourth phase-locked loop, the output end of the first power divider of the up-conversion part is connected to the input end of the fourth phase-locked loop, and the output end of the fourth phase-locked loop is connected to the amplifier input end of the primary mixing unit of the up-conversion part; The output end of the first power divider of the up-conversion part is connected to the input end of the fifth phase-locked loop and the sixth phase-locked loop respectively, the output end of the fifth phase-locked loop and the sixth phase-locked loop are connected to the input end of the second switch respectively, and the output end of the second switch is connected to the amplifier input end of the secondary mixing unit of the up-conversion part.

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