CN219268855U - Receiving and transmitting system - Google Patents

Receiving and transmitting system Download PDF

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Publication number
CN219268855U
CN219268855U CN202320914298.1U CN202320914298U CN219268855U CN 219268855 U CN219268855 U CN 219268855U CN 202320914298 U CN202320914298 U CN 202320914298U CN 219268855 U CN219268855 U CN 219268855U
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attenuator
output end
input end
amplifier
processing unit
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廖云龙
蒋志强
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Chengdu Ruixin Technology Co ltd
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Chengdu Ruixin Technology Co ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The utility model belongs to the technical field of communication, and particularly relates to a receiving and transmitting system which comprises a transmitting low-frequency processing unit, a transmitting intermediate-frequency processing unit, a transmitting high-frequency processing unit, a receiving low-frequency processing unit, a receiving intermediate-frequency processing unit, a receiving high-frequency processing unit, a frequency source LO1, a frequency source LO2, a first power divider, a second power divider, a mixer F1, a mixer F2, a mixer F3, a mixer F4, a4 frequency multiplier and a circulator.

Description

Receiving and transmitting system
Technical Field
The utility model belongs to the technical field of communication, and particularly relates to a receiving and transmitting system.
Background
The receiving and transmitting assembly receives or transmits signals through the antenna, the received signals are transmitted to the receiving channel through the circulator, the transmitting signals are transmitted to the circulator through the transmitting channel, and the transmitting signals are transmitted to the antenna through the circulator. In the transmitting channel and the receiving channel, the signals are filtered and amplified, thereby reducing noise and increasing amplitude. However, the existing transceiver device has low frequency of the transmitted and received signals, and lacks a low-noise transceiver device which can stably transmit and receive in the radio frequency band K.
Disclosure of Invention
Aiming at the technical problems in the background technology, the utility model provides a transceiving system which solves the problem that the existing transceiving device which is used for stably transceiving in the radio frequency band K wave band and has low noise is lacking.
In order to achieve the above purpose, the technical scheme provided by the utility model is as follows: a transceiver system comprising: the device comprises a transmitting low-frequency processing unit, a transmitting intermediate-frequency processing unit, a transmitting high-frequency processing unit, a receiving low-frequency processing unit, a receiving intermediate-frequency processing unit, a receiving high-frequency processing unit, a frequency source LO1, a frequency source LO2, a first power divider, a second power divider, a mixer F1, a mixer F2, a mixer F3, a mixer F4, a4 frequency multiplier and a circulator;
the first input end of the mixer F1 is connected with the output end of the transmitting low-frequency processing unit, the second input end of the mixer F1 is connected with the first output end of the first power divider, and the output end of the mixer F1 is connected with the input end of the transmitting intermediate-frequency processing unit; the first input end of the mixer F4 is connected with the output end of the transmitting intermediate frequency processing unit, the second input end of the mixer F4 is connected with the first output end of the second power divider, and the output end of the mixer F4 is connected with the input end of the transmitting high frequency processing unit; the input end of the circulator is connected with the output end of the transmitting high-frequency processing unit, and the output end of the circulator is connected with the input end of the receiving high-frequency processing unit; the first input end of the mixer F3 is connected with the output end of the receiving high-frequency processing unit, the second input end of the mixer F3 is connected with the second output end of the second power divider, and the output end of the mixer F3 is connected with the input end of the receiving intermediate-frequency processing unit; the first input end of the mixer F2 is connected with the output end of the receiving intermediate frequency processing unit, the second input end of the mixer F2 is connected with the second output end of the first power divider, and the output end of the mixer F2 is connected with the input end of the receiving low frequency processing unit; the output end of the frequency source LO2 is connected with the input end of the first power divider; the output end of the frequency source LO1 is connected with the input end of the 4 frequency multiplier; the input end of the second power divider is connected with the output end of the 4-frequency multiplier.
Further, the transmitting low frequency processing unit includes: a first attenuator, a second attenuator, a first low pass filter, an amplifier A1, a third attenuator, a fourth attenuator, a fifth attenuator, and a switch SPST1;
the output end of the first attenuator is connected with the input end of the second attenuator; the input end of the first low-pass filter is connected with the output end of the second attenuator; the input end of the amplifier A1 is connected with the output end of the first low-pass filter, and the output end of the amplifier A1 is connected with the input end of the third attenuator; one end of the switch SPST1 is connected with the output end of the third attenuator, and the other end of the switch SPST1 is connected with the input end of the fourth attenuator; the input end of the fifth attenuator is connected with the output end of the fourth attenuator, and the output end of the fifth attenuator is used as the output end of the transmitting low-frequency processing unit.
Further, the transmitting intermediate frequency processing unit includes: a sixth attenuator, a first band pass filter, a switch SPST2, an amplifier A2, a second low pass filter, and a seventh attenuator;
the input end of the sixth attenuator is used as the input end of the transmitting intermediate frequency processing unit, and the output end of the sixth attenuator is connected with the input end of the first band-pass filter; one end of the switch SPST2 is connected with the output end of the first band-pass filter, and the other end of the switch SPST2 is connected with the input end of the amplifier A2; the input end of the second low-pass filter is connected with the output end of the amplifier A2, and the output end of the second low-pass filter is connected with the input end of the seventh attenuator; the output end of the seventh attenuator is connected with the output end of the transmitting intermediate frequency processing unit.
Further, the transmission high frequency processing unit includes: an eighth attenuator, a second band-pass filter, an amplifier A3, an amplifier A4, a ninth attenuator, a switch SPST3, an amplifier A5, a tenth attenuator, an amplifier A6, and a first coupler;
the input end of the eighth attenuator is used as the input end of the transmitting high-frequency processing unit, and the output end of the eighth attenuator is connected with the input end of the second band-pass filter; the input end of the amplifier A3 is connected with the output end of the second band-pass filter, and the output end of the amplifier A3 is connected with the input end of the amplifier A4; the input end of the ninth attenuator is connected with the output end of the amplifier A4, and the output end of the ninth attenuator is connected with one end of the switch SPST 3; the input end of the amplifier A5 is connected with the other end of the switch SPST3, and the output end of the amplifier A5 is connected with the input end of the tenth attenuator; the output end of the tenth attenuator is connected with the input end of the amplifier A6; the input end of the first coupler is connected with the output end of the amplifier A6, and the output end of the first coupler is used as the output end of the high-frequency transmission processing unit.
Further, the reception high-frequency processing unit includes: limiter, amplifier A7, switch SPST4, third bandpass filter, amplifier A8 and eleventh attenuator;
the input end of the amplitude limiter is used as the input end of the high-frequency receiving processing unit, and the output end of the amplitude limiter is connected with the input end of the amplifier A7; one end of the switch SPST4 is connected with the output end of the amplifier A7, and the other end of the switch SPST4 is connected with the input end of the third band-pass filter; the input end of the amplifier A8 is connected with the output end of the third band-pass filter, and the output end of the amplifier A8 is connected with the input end of the eleventh attenuator; the output end of the eleventh attenuator is used as the output end of the high frequency receiving processing unit.
Further, the receiving intermediate frequency processing unit includes: a twelfth attenuator, a third low pass filter, a fourth low pass filter, a fifth low pass filter, an amplifier A9, a switch SPST5, a thirteenth attenuator, a sixth low pass filter, and a fourteenth attenuator;
the input end of the twelfth attenuator is used as the input end of the receiving intermediate frequency processing unit, and the output end of the twelfth attenuator is connected with the input end of the third low-pass filter; the input end of the fourth low-pass filter is connected with the output end of the third low-pass filter, and the output end of the fourth low-pass filter is connected with the input end of the fifth low-pass filter; the input end of the amplifier A9 is connected with the output end of the fifth low-pass filter, and the output end of the amplifier A9 is connected with one end of the switch SPST 5; the input end of the thirteenth attenuator is connected with the other end of the switch SPST5, and the output end of the thirteenth attenuator is connected with the input end of the sixth low-pass filter; the input end of the fourteenth attenuator is connected with the output end of the sixth low-pass filter, and the output end of the fourteenth attenuator is used as the output end of the receiving intermediate frequency processing unit.
Further, the reception low-frequency processing unit includes: a fifteenth attenuator, a seventh low pass filter, a fourth band pass filter, an amplifier a10, a sixteenth attenuator, an equalizer, a switch SPST6, a seventeenth attenuator, an amplifier a11, an eighteenth attenuator, an amplifier a12, an amplifier a13, a nineteenth attenuator, an amplifier a14, a twentieth attenuator, an amplifier a15, a twenty first attenuator, an amplifier a16, a fifth band pass filter, a second coupler, and a twenty second attenuator;
the input end of the fifteenth attenuator is used as the input end of the receiving low-frequency processing unit, and the output end of the fifteenth attenuator is connected with the input end of the seventh low-pass filter; the input end of the fourth band-pass filter is connected with the output end of the seventh low-pass filter, and the output end of the fourth band-pass filter is connected with the input end of the amplifier A10; the input end of the sixteenth attenuator is connected with the output end of the amplifier A10, and the output end of the sixteenth attenuator is connected with the input end of the equalizer; one end of the switch SPST6 is connected with the output end of the equalizer, and the other end of the switch SPST6 is connected with the input end of the seventeenth attenuator; the input end of the amplifier A11 is connected with the output end of the seventeenth attenuator, and the output end of the amplifier A11 is connected with the input end of the eighteenth attenuator; the input end of the amplifier A12 is connected with the output end of the eighteenth attenuator; the input end of the amplifier A13 is connected with the output end of the amplifier A12, and the output end of the amplifier A13 is connected with the input end of the nineteenth attenuator; the input end of the amplifier A14 is connected with the output end of the nineteenth attenuator, and the output end of the amplifier A14 is connected with the input end of the twentieth attenuator; the input end of the amplifier A15 is connected with the output end of the twentieth attenuator, and the output end of the amplifier A15 is connected with the input end of the twenty-first attenuator; the input end of the amplifier A16 is connected with the output end of the twenty-first attenuator, and the output end of the amplifier A16 is connected with the input end of the fifth band-pass filter; the input end of the second coupler is connected with the output end of the fifth band-pass filter, and the output end of the second coupler is connected with the input end of the twenty-second attenuator; the output end of the twenty-second attenuator is used as the output end of the receiving low-frequency processing unit.
Further, the low frequency ranges from 23MHz to 37MHz, the intermediate frequency ranges from 913MHz to 927MHz, and the high frequency ranges from 32.7GHz to 33.7GHz.
The utility model has the following advantages and beneficial effects: in the transmitting channel, 890MHz signal is generated by a frequency source LO2 and mixed with 23-37MHz signal output by a transmitting high-frequency processing unit, the signal of the transmitting channel is subjected to primary frequency spectrum shifting, and is subjected to secondary frequency spectrum shifting by a mixer F4 and transmitted by a circulator; during receiving, the received 33.2GHz signal is processed by a receiving high-frequency processing unit, then 913-927MHz signal is extracted by a mixer F3, and then the second signal frequency extraction is carried out by the mixer F2 to obtain 23-37MHz signal.
Drawings
FIG. 1 is a system block diagram of a transceiver system;
FIG. 2 is a system block diagram of a transmit low frequency processing unit;
FIG. 3 is a system block diagram of a transmit intermediate frequency processing unit;
FIG. 4 is a system block diagram of a transmit high frequency processing unit;
FIG. 5 is a system block diagram of a receive high frequency processing unit;
FIG. 6 is a system block diagram of a receive intermediate frequency processing unit;
fig. 7 is a system block diagram of a receive low frequency processing unit.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples
As shown in fig. 1, a transceiver system includes: the device comprises a transmitting low-frequency processing unit, a transmitting intermediate-frequency processing unit, a transmitting high-frequency processing unit, a receiving low-frequency processing unit, a receiving intermediate-frequency processing unit, a receiving high-frequency processing unit, a frequency source LO1, a frequency source LO2, a first power divider, a second power divider, a mixer F1, a mixer F2, a mixer F3, a mixer F4, a4 frequency multiplier and a circulator;
the first input end of the mixer F1 is connected with the output end of the transmitting low-frequency processing unit, the second input end of the mixer F1 is connected with the first output end of the first power divider, and the output end of the mixer F1 is connected with the input end of the transmitting intermediate-frequency processing unit; the first input end of the mixer F4 is connected with the output end of the transmitting intermediate frequency processing unit, the second input end of the mixer F4 is connected with the first output end of the second power divider, and the output end of the mixer F4 is connected with the input end of the transmitting high frequency processing unit; the input end of the circulator is connected with the output end of the transmitting high-frequency processing unit, and the output end of the circulator is connected with the input end of the receiving high-frequency processing unit; the first input end of the mixer F3 is connected with the output end of the receiving high-frequency processing unit, the second input end of the mixer F3 is connected with the second output end of the second power divider, and the output end of the mixer F3 is connected with the input end of the receiving intermediate-frequency processing unit; the first input end of the mixer F2 is connected with the output end of the receiving intermediate frequency processing unit, the second input end of the mixer F2 is connected with the second output end of the first power divider, and the output end of the mixer F2 is connected with the input end of the receiving low frequency processing unit; the output end of the frequency source LO2 is connected with the input end of the first power divider; the output end of the frequency source LO1 is connected with the input end of the 4 frequency multiplier; the input end of the second power divider is connected with the output end of the 4-frequency multiplier.
As shown in fig. 2, the transmission low frequency processing unit includes: a first attenuator, a second attenuator, a first low pass filter, an amplifier A1, a third attenuator, a fourth attenuator, a fifth attenuator, and a switch SPST1;
the output end of the first attenuator is connected with the input end of the second attenuator; the input end of the first low-pass filter is connected with the output end of the second attenuator; the input end of the amplifier A1 is connected with the output end of the first low-pass filter, and the output end of the amplifier A1 is connected with the input end of the third attenuator; one end of the switch SPST1 is connected with the output end of the third attenuator, and the other end of the switch SPST1 is connected with the input end of the fourth attenuator; the input end of the fifth attenuator is connected with the output end of the fourth attenuator, and the output end of the fifth attenuator is used as the output end of the transmitting low-frequency processing unit.
As shown in fig. 3, the transmitting intermediate frequency processing unit includes: a sixth attenuator, a first band pass filter, a switch SPST2, an amplifier A2, a second low pass filter, and a seventh attenuator;
the input end of the sixth attenuator is used as the input end of the transmitting intermediate frequency processing unit, and the output end of the sixth attenuator is connected with the input end of the first band-pass filter; one end of the switch SPST2 is connected with the output end of the first band-pass filter, and the other end of the switch SPST2 is connected with the input end of the amplifier A2; the input end of the second low-pass filter is connected with the output end of the amplifier A2, and the output end of the second low-pass filter is connected with the input end of the seventh attenuator; the output end of the seventh attenuator is connected with the output end of the transmitting intermediate frequency processing unit.
As shown in fig. 4, the transmission high frequency processing unit includes: an eighth attenuator, a second band-pass filter, an amplifier A3, an amplifier A4, a ninth attenuator, a switch SPST3, an amplifier A5, a tenth attenuator, an amplifier A6, and a first coupler;
the input end of the eighth attenuator is used as the input end of the transmitting high-frequency processing unit, and the output end of the eighth attenuator is connected with the input end of the second band-pass filter; the input end of the amplifier A3 is connected with the output end of the second band-pass filter, and the output end of the amplifier A3 is connected with the input end of the amplifier A4; the input end of the ninth attenuator is connected with the output end of the amplifier A4, and the output end of the ninth attenuator is connected with one end of the switch SPST 3; the input end of the amplifier A5 is connected with the other end of the switch SPST3, and the output end of the amplifier A5 is connected with the input end of the tenth attenuator; the output end of the tenth attenuator is connected with the input end of the amplifier A6; the input end of the first coupler is connected with the output end of the amplifier A6, and the output end of the first coupler is used as the output end of the high-frequency transmission processing unit.
As shown in fig. 5, the reception high-frequency processing unit includes: limiter, amplifier A7, switch SPST4, third bandpass filter, amplifier A8 and eleventh attenuator;
the input end of the amplitude limiter is used as the input end of the high-frequency receiving processing unit, and the output end of the amplitude limiter is connected with the input end of the amplifier A7; one end of the switch SPST4 is connected with the output end of the amplifier A7, and the other end of the switch SPST4 is connected with the input end of the third band-pass filter; the input end of the amplifier A8 is connected with the output end of the third band-pass filter, and the output end of the amplifier A8 is connected with the input end of the eleventh attenuator; the output end of the eleventh attenuator is used as the output end of the high frequency receiving processing unit.
As shown in fig. 6, the receiving intermediate frequency processing unit includes: a twelfth attenuator, a third low pass filter, a fourth low pass filter, a fifth low pass filter, an amplifier A9, a switch SPST5, a thirteenth attenuator, a sixth low pass filter, and a fourteenth attenuator;
the input end of the twelfth attenuator is used as the input end of the receiving intermediate frequency processing unit, and the output end of the twelfth attenuator is connected with the input end of the third low-pass filter; the input end of the fourth low-pass filter is connected with the output end of the third low-pass filter, and the output end of the fourth low-pass filter is connected with the input end of the fifth low-pass filter; the input end of the amplifier A9 is connected with the output end of the fifth low-pass filter, and the output end of the amplifier A9 is connected with one end of the switch SPST 5; the input end of the thirteenth attenuator is connected with the other end of the switch SPST5, and the output end of the thirteenth attenuator is connected with the input end of the sixth low-pass filter; the input end of the fourteenth attenuator is connected with the output end of the sixth low-pass filter, and the output end of the fourteenth attenuator is used as the output end of the receiving intermediate frequency processing unit.
As shown in fig. 7, the reception low frequency processing unit includes: a fifteenth attenuator, a seventh low pass filter, a fourth band pass filter, an amplifier a10, a sixteenth attenuator, an equalizer, a switch SPST6, a seventeenth attenuator, an amplifier a11, an eighteenth attenuator, an amplifier a12, an amplifier a13, a nineteenth attenuator, an amplifier a14, a twentieth attenuator, an amplifier a15, a twenty first attenuator, an amplifier a16, a fifth band pass filter, a second coupler, and a twenty second attenuator;
the input end of the fifteenth attenuator is used as the input end of the receiving low-frequency processing unit, and the output end of the fifteenth attenuator is connected with the input end of the seventh low-pass filter; the input end of the fourth band-pass filter is connected with the output end of the seventh low-pass filter, and the output end of the fourth band-pass filter is connected with the input end of the amplifier A10; the input end of the sixteenth attenuator is connected with the output end of the amplifier A10, and the output end of the sixteenth attenuator is connected with the input end of the equalizer; one end of the switch SPST6 is connected with the output end of the equalizer, and the other end of the switch SPST6 is connected with the input end of the seventeenth attenuator; the input end of the amplifier A11 is connected with the output end of the seventeenth attenuator, and the output end of the amplifier A11 is connected with the input end of the eighteenth attenuator; the input end of the amplifier A12 is connected with the output end of the eighteenth attenuator; the input end of the amplifier A13 is connected with the output end of the amplifier A12, and the output end of the amplifier A13 is connected with the input end of the nineteenth attenuator; the input end of the amplifier A14 is connected with the output end of the nineteenth attenuator, and the output end of the amplifier A14 is connected with the input end of the twentieth attenuator; the input end of the amplifier A15 is connected with the output end of the twentieth attenuator, and the output end of the amplifier A15 is connected with the input end of the twenty-first attenuator; the input end of the amplifier A16 is connected with the output end of the twenty-first attenuator, and the output end of the amplifier A16 is connected with the input end of the fifth band-pass filter; the input end of the second coupler is connected with the output end of the fifth band-pass filter, and the output end of the second coupler is connected with the input end of the twenty-second attenuator; the output end of the twenty-second attenuator is used as the output end of the receiving low-frequency processing unit.
The low frequency ranges from 23MHz to 37MHz, the intermediate frequency ranges from 913MHz to 927MHz, and the high frequency ranges from 32.7GHz to 33.7GHz.
The attenuator of the present utility model is used to adapt the amplitude or power of the subsequent stage.
The insertion loss or gain of various devices on the channel link will vary with temperature. The insertion loss of a filter and a mixer in a link is smaller along with the temperature change, the fluctuation of the whole temperature range is not more than 1dB, the insertion loss or gain of an amplifier, a numerical control attenuator and a switch is slightly larger along with the temperature change, but the fluctuation of each device is not more than 0.5dB. The gain of the channel fluctuates by about 5dB in the whole temperature range, and the gain fluctuation of the channel in the whole temperature range can be ensured to meet the requirement by adding a temperature compensation attenuator in the channel.
Because the gain of the channel fluctuates by about 5dB in the whole temperature range, the gain fluctuation of the channel can be ensured to meet the requirement in the whole temperature range by adding a temperature compensation attenuator in the channel, namely the third attenuator and the sixteenth attenuator are temperature compensation attenuators.
In this embodiment, the second attenuator and the fourth attenuator are digital controlled attenuators.
The two digital control attenuators HMC629ALP4E before the first frequency conversion of the transmitting channel are controlled to the maximum attenuation so as to reduce the input intermediate frequency signal 0dBm by 36 multiplied by 2=72 dB, because the power of the last-stage power amplifier entering the circulator before attenuation is 34.2dBm, after the two digital control attenuators HMC629ALP4E are added, the power of the power amplifier entering the circulator is as follows:
34.2-72＝-37.8dBm
a signal of 37.8dBm enters the switch through the circulator common port, and the signal power entering the transmit antenna is only that due to the 50dB isolation of the switch: -37.8-50 = -87.8dBm, which signal does not have a substantial impact on other radars.
A signal of 37.8dBm enters the receiving channel through the isolation end of the circulator, the isolation of the circulator being 18dB, the signal power at the limiter input is: after the gain (69 dB) in the receiving link is amplified, the output power is about 9.5dBm due to the saturation of the final-stage amplifier, so that the requirement that the output signal is between 1.8V and 2V (corresponding to 9 to 10 dBm) in the ordered self-checking state is met.
The final stage power amplifier in the transmitting channel is WFD300400-P33, and the static output power is 33dBm. When the intermediate frequency input power is-0 dBm, the output power calculation result of the transmitting channel is 30.9dBm through calculation, and the transmitting channel meets the requirement of the output power.
When the power amplifier chip is saturated in output power, the output power has little change at high and low temperatures. The gain temperature compensation attenuator is added at the intermediate frequency input end, so that the change of the gain of the transmitting channel at high and low temperatures is small, and the output power of the power amplification channel is ensured to meet the requirements at high and low temperatures.
The input end of the receiving channel adopts a limiter NC1833C-3238, the maximum power resistance is 2.5W of continuous wave, and the burning-resistant requirement of the receiving channel with the pulse peak power of 2W (the duty ratio is not more than 10%) is met.
After the first frequency conversion, a filter is adopted to suppress the local oscillation signal with the frequency of 890MHz by more than 42dBc, so that the 33.17GHz output signal with the frequency of 890+32280= 33170MHz after the second frequency conversion can be suppressed by more than 40dBc, and the requirement of transmitting clutter suppression is less than 40 dBc.
In this embodiment, the switches SPST1, SPST2, SPST3, SPST4, SPST5 and SPST6 are single pole single throw switches, increasing isolation of the channel.
The input end of the receiving channel adopts a limiter NC1833C-3238, the maximum power resistance is 2.5W of continuous wave, and the burning-resistant requirement of the receiving channel with the pulse peak power of 2W (the duty ratio is not more than 10%) is met.
In this embodiment, the local oscillators of the frequency source LO2 are a receiving local oscillator and a transmitting local oscillator that generate a local oscillation 890MHz. Implemented using a phase detector ADF 4351. The phase discrimination frequency is 20MHz, and after the phase-locked loop generates 3560MHz signal, 890MHz is generated by 4 frequency division. The 890MHz signal is amplified and filtered to be divided into two paths which are respectively used as the local oscillation signals for transmitting and receiving.
In this embodiment, the local oscillation signal of the frequency source LO1 has a frequency of 32.28GHz. The phase demodulation of 40MHz is adopted to generate 8.07GHz signals, and the signals are amplified, filtered and divided into 2 paths to be used as fundamental wave local oscillation signals of a harmonic mixer.
The utility model has the following advantages and beneficial effects: in the transmitting channel, 890MHz signal is generated by a frequency source LO2 and mixed with 23-37MHz signal output by a transmitting high-frequency processing unit, the signal of the transmitting channel is subjected to primary frequency spectrum shifting, and is subjected to secondary frequency spectrum shifting by a mixer F4 and transmitted by a circulator; during receiving, the received 33.2GHz signal is processed by a receiving high-frequency processing unit, then 913-927MHz signal is extracted by a mixer F3, and then the second signal frequency extraction is carried out by the mixer F2 to obtain 23-37MHz signal.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (7)

1. A transceiver system, comprising: the device comprises a transmitting low-frequency processing unit, a transmitting intermediate-frequency processing unit, a transmitting high-frequency processing unit, a receiving low-frequency processing unit, a receiving intermediate-frequency processing unit, a receiving high-frequency processing unit, a frequency source LO1, a frequency source LO2, a first power divider, a second power divider, a mixer F1, a mixer F2, a mixer F3, a mixer F4, a4 frequency multiplier and a circulator;
the first input end of the mixer F1 is connected with the output end of the transmitting low-frequency processing unit, the second input end of the mixer F1 is connected with the first output end of the first power divider, and the output end of the mixer F1 is connected with the input end of the transmitting intermediate-frequency processing unit; the first input end of the mixer F4 is connected with the output end of the transmitting intermediate frequency processing unit, the second input end of the mixer F4 is connected with the first output end of the second power divider, and the output end of the mixer F4 is connected with the input end of the transmitting high frequency processing unit; the input end of the circulator is connected with the output end of the transmitting high-frequency processing unit, and the output end of the circulator is connected with the input end of the receiving high-frequency processing unit; the first input end of the mixer F3 is connected with the output end of the receiving high-frequency processing unit, the second input end of the mixer F3 is connected with the second output end of the second power divider, and the output end of the mixer F3 is connected with the input end of the receiving intermediate-frequency processing unit; the first input end of the mixer F2 is connected with the output end of the receiving intermediate frequency processing unit, the second input end of the mixer F2 is connected with the second output end of the first power divider, and the output end of the mixer F2 is connected with the input end of the receiving low frequency processing unit; the output end of the frequency source LO2 is connected with the input end of the first power divider; the output end of the frequency source LO1 is connected with the input end of the 4 frequency multiplier; the input end of the second power divider is connected with the output end of the 4-frequency multiplier.
2. The transceiver system of claim 1, wherein the transmit low frequency processing unit comprises: a first attenuator, a second attenuator, a first low pass filter, an amplifier A1, a third attenuator, a fourth attenuator, a fifth attenuator, and a switch SPST1;
the output end of the first attenuator is connected with the input end of the second attenuator; the input end of the first low-pass filter is connected with the output end of the second attenuator; the input end of the amplifier A1 is connected with the output end of the first low-pass filter, and the output end of the amplifier A1 is connected with the input end of the third attenuator; one end of the switch SPST1 is connected with the output end of the third attenuator, and the other end of the switch SPST1 is connected with the input end of the fourth attenuator; the input end of the fifth attenuator is connected with the output end of the fourth attenuator, and the output end of the fifth attenuator is used as the output end of the transmitting low-frequency processing unit.
3. The transceiver system of claim 1, wherein the transmit intermediate frequency processing unit comprises: a sixth attenuator, a first band pass filter, a switch SPST2, an amplifier A2, a second low pass filter, and a seventh attenuator;
the input end of the sixth attenuator is used as the input end of the transmitting intermediate frequency processing unit, and the output end of the sixth attenuator is connected with the input end of the first band-pass filter; one end of the switch SPST2 is connected with the output end of the first band-pass filter, and the other end of the switch SPST2 is connected with the input end of the amplifier A2; the input end of the second low-pass filter is connected with the output end of the amplifier A2, and the output end of the second low-pass filter is connected with the input end of the seventh attenuator; the output end of the seventh attenuator is connected with the output end of the transmitting intermediate frequency processing unit.
4. The transceiver system of claim 1, wherein the transmit high frequency processing unit comprises: an eighth attenuator, a second band-pass filter, an amplifier A3, an amplifier A4, a ninth attenuator, a switch SPST3, an amplifier A5, a tenth attenuator, an amplifier A6, and a first coupler;
the input end of the eighth attenuator is used as the input end of the transmitting high-frequency processing unit, and the output end of the eighth attenuator is connected with the input end of the second band-pass filter; the input end of the amplifier A3 is connected with the output end of the second band-pass filter, and the output end of the amplifier A3 is connected with the input end of the amplifier A4; the input end of the ninth attenuator is connected with the output end of the amplifier A4, and the output end of the ninth attenuator is connected with one end of the switch SPST 3; the input end of the amplifier A5 is connected with the other end of the switch SPST3, and the output end of the amplifier A5 is connected with the input end of the tenth attenuator; the output end of the tenth attenuator is connected with the input end of the amplifier A6; the input end of the first coupler is connected with the output end of the amplifier A6, and the output end of the first coupler is used as the output end of the high-frequency transmission processing unit.
5. The transceiver system of claim 1, wherein the receive high frequency processing unit comprises: limiter, amplifier A7, switch SPST4, third bandpass filter, amplifier A8 and eleventh attenuator;
the input end of the amplitude limiter is used as the input end of the high-frequency receiving processing unit, and the output end of the amplitude limiter is connected with the input end of the amplifier A7; one end of the switch SPST4 is connected with the output end of the amplifier A7, and the other end of the switch SPST4 is connected with the input end of the third band-pass filter; the input end of the amplifier A8 is connected with the output end of the third band-pass filter, and the output end of the amplifier A8 is connected with the input end of the eleventh attenuator; the output end of the eleventh attenuator is used as the output end of the high frequency receiving processing unit.
6. The transceiver system of claim 1, wherein the receive intermediate frequency processing unit comprises: a twelfth attenuator, a third low pass filter, a fourth low pass filter, a fifth low pass filter, an amplifier A9, a switch SPST5, a thirteenth attenuator, a sixth low pass filter, and a fourteenth attenuator;
the input end of the twelfth attenuator is used as the input end of the receiving intermediate frequency processing unit, and the output end of the twelfth attenuator is connected with the input end of the third low-pass filter; the input end of the fourth low-pass filter is connected with the output end of the third low-pass filter, and the output end of the fourth low-pass filter is connected with the input end of the fifth low-pass filter; the input end of the amplifier A9 is connected with the output end of the fifth low-pass filter, and the output end of the amplifier A9 is connected with one end of the switch SPST 5; the input end of the thirteenth attenuator is connected with the other end of the switch SPST5, and the output end of the thirteenth attenuator is connected with the input end of the sixth low-pass filter; the input end of the fourteenth attenuator is connected with the output end of the sixth low-pass filter, and the output end of the fourteenth attenuator is used as the output end of the receiving intermediate frequency processing unit.
7. The transceiver system of claim 1, wherein the receive low frequency processing unit comprises: a fifteenth attenuator, a seventh low pass filter, a fourth band pass filter, an amplifier a10, a sixteenth attenuator, an equalizer, a switch SPST6, a seventeenth attenuator, an amplifier a11, an eighteenth attenuator, an amplifier a12, an amplifier a13, a nineteenth attenuator, an amplifier a14, a twentieth attenuator, an amplifier a15, a twenty first attenuator, an amplifier a16, a fifth band pass filter, a second coupler, and a twenty second attenuator;
the input end of the fifteenth attenuator is used as the input end of the receiving low-frequency processing unit, and the output end of the fifteenth attenuator is connected with the input end of the seventh low-pass filter; the input end of the fourth band-pass filter is connected with the output end of the seventh low-pass filter, and the output end of the fourth band-pass filter is connected with the input end of the amplifier A10; the input end of the sixteenth attenuator is connected with the output end of the amplifier A10, and the output end of the sixteenth attenuator is connected with the input end of the equalizer; one end of the switch SPST6 is connected with the output end of the equalizer, and the other end of the switch SPST6 is connected with the input end of the seventeenth attenuator; the input end of the amplifier A11 is connected with the output end of the seventeenth attenuator, and the output end of the amplifier A11 is connected with the input end of the eighteenth attenuator; the input end of the amplifier A12 is connected with the output end of the eighteenth attenuator; the input end of the amplifier A13 is connected with the output end of the amplifier A12, and the output end of the amplifier A13 is connected with the input end of the nineteenth attenuator; the input end of the amplifier A14 is connected with the output end of the nineteenth attenuator, and the output end of the amplifier A14 is connected with the input end of the twentieth attenuator; the input end of the amplifier A15 is connected with the output end of the twentieth attenuator, and the output end of the amplifier A15 is connected with the input end of the twenty-first attenuator; the input end of the amplifier A16 is connected with the output end of the twenty-first attenuator, and the output end of the amplifier A16 is connected with the input end of the fifth band-pass filter; the input end of the second coupler is connected with the output end of the fifth band-pass filter, and the output end of the second coupler is connected with the input end of the twenty-second attenuator; the output end of the twenty-second attenuator is used as the output end of the receiving low-frequency processing unit.
CN202320914298.1U 2023-04-21 2023-04-21 Receiving and transmitting system Active CN219268855U (en)

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