CN214045616U - High-precision microwave internal calibrator for transceiver subsystem - Google Patents
High-precision microwave internal calibrator for transceiver subsystem Download PDFInfo
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- CN214045616U CN214045616U CN202022583233.2U CN202022583233U CN214045616U CN 214045616 U CN214045616 U CN 214045616U CN 202022583233 U CN202022583233 U CN 202022583233U CN 214045616 U CN214045616 U CN 214045616U
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Abstract
The utility model provides a high-precision microwave internal calibrator for a transceiver subsystem, which comprises a switch network, a transmitting channel, a receiving channel and an attenuation network; the switch network comprises a first switch, a first switch module and a second switch module which have the same structure; the utility model discloses can receive intermediate frequency transmission signal and convert the main signal transmission into, can still carry out self calibration to the transmission calibration signal of antenna transmission, can receive the receiving calibration signal that the antenna sent and trun into intermediate frequency received signal, also can receive the radio frequency input signal frequency conversion and carry for intermediate frequency received signal. The utility model provides a calibrator in receiving and dispatching subsystem high accuracy microwave is integrated in an organic whole with five-level switch, tertiary attenuator, calibration source transmission channel and receiving channel, because the product adopts the modularized design, each port matches well, and each part is through the rigid cable interconnection, realizes receiving and dispatching subsystem high accuracy calibration, satisfies system's environmental condition demand simultaneously.
Description
Technical Field
The utility model relates to a detect or calibrating device technical field, concretely relates to receive and dispatch sub-system high accuracy microwave internal standard ware.
Background
The transceiver subsystem obtains its own parameters through a high-precision calibrator, and the accuracy and stability of the parameters directly determine the measurement precision of the transceiver subsystem. The high-precision calibrator adopts a sensor in the system to measure relevant parameters such as transmitting power, receiving performance, TR component relative amplitude-phase error, internal environment temperature and the like of a transmitting-receiving subsystem, and a measurement result is downloaded to the ground in a form of telemetering data and is used for analyzing the on-orbit performance of the system. In the existing calibration system, the mechanical switch has the defects of large volume, large power consumption, complex multi-stage cascade, poor product integration and the like; the output of a calibration source is difficult to ensure the output of low stray and high stability; the receiving channel is restricted by the performance of chips such as an amplifier and the like, and the fluctuation of the gain along with the temperature cannot be ensured.
Disclosure of Invention
The utility model relates to a solve present calibration system bulky, can not high stability output and receive channel gain can not be along with the undulant problem of temperature, provide a transceiver subsystem high accuracy microwave internal standard ware, with five-stage switch, tertiary attenuator, calibration source transmission channel and receive channel integration in an organic whole, because the product adopts the modularized design, each port matches well, each part is through the rigid cable interconnection, realizes transceiver subsystem high accuracy calibration, satisfies system's environmental condition demand simultaneously.
The utility model provides a high-precision microwave internal calibrator for a transceiver subsystem, which comprises a switch network, a transmitting channel, a receiving channel and an attenuation network;
the switch network is electrically connected with the transmitting channel, the receiving channel, the attenuation network and the antenna, the transmitting channel is electrically connected with the system transmitting link, and the receiving channel is electrically connected with the system receiving link;
the switch network comprises a first switch, a first switch module and a second switch module which are connected with the first switch and have the same structure, and the first switch module is electrically connected with the transmitting channel and the attenuation network; the second switch module is electrically connected with the receiving channel and the attenuation network;
the switch network is used for gating, the switch network is used for receiving the transmitting calibration signal sent by the transmitting channel and sending the transmitting calibration signal to the antenna, the switch network is used for receiving the transmitting calibration signal sent by the transmitting channel and sending the transmitting calibration signal to the attenuation network, the switch network is used for receiving the receiving calibration signal from the antenna and sending the receiving calibration signal to the attenuation network, and the switch network is used for receiving the receiving calibration signal from the antenna and sending the receiving calibration signal to the receiving channel; the switch network is used for receiving the receiving calibration signal sent from the attenuation network and sending the receiving calibration signal to a receiving channel;
the transmitting channel is used for receiving the intermediate frequency transmitting signal, converting the intermediate frequency transmitting signal into a main signal after filtering, amplifying, mixing, secondary filtering and secondary amplifying, outputting the main signal to a system transmitting link, the transmitting channel is used for receiving the intermediate frequency transmitting signal, converting the intermediate frequency transmitting signal into a transmitting calibration signal after filtering, amplifying, mixing, secondary filtering and secondary amplifying, and outputting the transmitting calibration signal to a switch network, and the main signal and the transmitting calibration signal are radio frequency signals;
the receiving channel is used for receiving a radio frequency input signal sent by a system receiving link and converting the radio frequency input signal into an intermediate frequency receiving signal to output the intermediate frequency receiving signal to the outside, and the receiving channel is used for receiving a receiving calibration signal output by the switch network and converting the receiving calibration signal into the intermediate frequency receiving signal to output the intermediate frequency receiving signal to the outside;
the attenuation network is used for receiving the transmitting calibration signal sent by the switch network, attenuating the transmitting calibration signal to generate a receiving calibration signal and outputting the receiving calibration signal to the switch network, and the attenuation network is used for receiving and attenuating the receiving calibration signal sent by the switch network.
A receiving and dispatching subsystem high accuracy microwave internal standard ware, as preferred mode, the decay network is including consecutive first decay module, second decay module and third decay module.
A receiving and dispatching subsystem high accuracy microwave internal standard ware, as preferred mode, first switch module is including cascaded one-level switch and second grade switch, first switch module independently encapsulates.
A receiving and dispatching subsystem high accuracy microwave internal standard ware, as preferred mode, adopt rigid cable to connect between decay network and the switch network.
A receiving and dispatching subsystem high accuracy microwave internal standard ware, as preferred mode, the inside multistage temperature compensator that is provided with of receiving channel.
A receiving and dispatching subsystem high accuracy microwave internal standard ware, as preferred mode, transmission channel and receiving channel input port adopt high isolator.
A receiving and dispatching subsystem high accuracy microwave internal standard ware, as preferred mode, the radio frequency input signal is Ku/Ka frequency channel radio-frequency signal with receiving calibration signal, receiving channel is used for becoming the intermediate frequency received signal with Ku/Ka frequency channel radio-frequency signal down-conversion to S frequency channel down-conversion again of receiving, intermediate frequency transmission signal, intermediate frequency received signal are 120MHz intermediate frequency signal.
A receiving and dispatching subsystem high accuracy microwave internal standard ware, as preferred mode, the receiving channel is including being used for changing Ku/Ka frequency channel radio frequency signal down the first cavity to the S frequency channel and being used for changing the S frequency channel down into the second cavity of 120MHz intermediate frequency, decay network, switch network, first cavity and second cavity all adopt the independent cavitation of MIC technology.
The utility model discloses a receiving and dispatching subsystem high accuracy microwave internal calibrator, as preferred mode, the transmission channel includes first wave filter, first power amplifier, first mixer, second wave filter, second power amplifier and transmission channel switch that connect gradually;
a receiving and dispatching subsystem high accuracy microwave internal standard ware, as preferred mode, the receiving channel is including the input switch, third wave filter, first compensator, third power amplifier, second compensator, third mixer, fourth power amplifier, fourth mixer, fifth power amplifier and the third compensator that connect gradually.
A receiving and dispatching subsystem high accuracy microwave internal standard ware, including switching network, decay network, transmission passageway, receiving channel, wherein:
switching the network: the calibration device consists of a switch 1 and two switches 2, and a transmitting calibration signal is output through a switch network through a transmitting channel and is supplied to an antenna network to calibrate a receiving channel of a T/R component; and the received calibration signal enters a receiving channel through the switch network to calibrate a transmitting channel of the T/R component.
Attenuation network: the device consists of three attenuation modules, wherein the attenuation adjustable range of each module is 30dB, the attenuation adjustable range of each module is interconnected with a switch network through a switch, calibration signals transmitted by a transmitting channel are received, the dynamic state of the whole link is simulated, and the calibration signals enter a receiving channel.
Emission channel: and performing up-conversion on the 120MHz intermediate frequency transmitting signal fin twice, performing up-conversion on the 120MHz intermediate frequency transmitting signal fin to an S frequency band, performing up-conversion on the S frequency band to a Ku/Ka frequency band radio frequency signal, performing amplification and filtering, pushing a final amplifier to saturation, wherein the saturation depth is 3dB, and switching to a main signal ft or a transmitting calibration signal frt through a switch.
Receiving a channel: the method comprises the steps of carrying out down-conversion on a received Ku/Ka frequency band radio frequency signal twice, respectively receiving a Ku/Ka frequency band calibration signal from a switch network and an attenuation network, carrying out down-conversion to an S frequency band, and carrying out down-conversion from the S frequency band to a 120MHz intermediate frequency receiving signal fout, wherein the signals comprise amplification, filtering and the like, a temperature compensator is reasonably designed in a channel, the gain stability of the temperature compensator is controlled, and the gain fluctuation in a full temperature range is less than or equal to 0.5 dB.
In the high-precision microwave internal calibrator for the transceiving subsystem, the switching network, the attenuation network, the S-to-Ku/Ka frequency band up-conversion and the Ku/Ka frequency band-to-S down-conversion adopt MIC (many integrated core) technology to independently form a cavity, and on the premise of not influencing the electrical property, the cavity is locally hollowed out, so that the increase of the volume and the weight is effectively reduced, the modules are connected by adopting rigid cables, and the special-shaped design ensures enough turning radius in a limited space and improves the reliability.
A receiving and dispatching subsystem high accuracy microwave internal standard ware, including switching network, decay network, transmission passageway, receiving channel, concrete step is as follows:
(1) the 120MHz intermediate frequency transmitting signal fin is input to a transmitting channel, two paths of radio frequency signals ft (main signal) and frt (calibration signal) are output through filtering, an amplifier, frequency mixing, re-filtering, re-amplifying and switching, the signals are supplied to a main link and a calibration link through switching of a switch respectively, a final amplifier before the switch is pushed to a saturated state, the saturation depth of the amplifier is pushed to 3-5 dB through adjusting the attenuation value of the link, stray indexes of the transmitting channel are guaranteed, and the stability of output signals is guaranteed.
(2) Transmitting a calibration signal frt to enter a switch network, after passing through a switch 1 and a switch 2, dividing into two, supplying one path of frt1 to an antenna for calibrating each receiving channel of a phased array transceiver subsystem TR component, and inputting one path of frt2 to an attenuation network for self calibration of the scaler.
(3) The attenuation network receives the transmitting calibration signal frt2 of the switch network, adjusts the signal intensity through attenuation presetting, outputs a receiving calibration signal frr2 to enter a receiving channel of the scaler, and carries out self calibration of the scaler.
(4) The receiving calibration signal frr1 received by the antenna passes through the switch 1 and the switch 2 of the switch network, the signal is divided into two, one path of the receiving calibration signal frr enters a receiving channel to calibrate each transmitting channel of the TR component of the phased array transceiving subsystem, one path of the receiving calibration signal frr2 is connected with the attenuation network, and when the switch is switched to frr2, the attenuation of the attenuation network is preset to be maximum so as to achieve a good matching effect.
Compared with the prior art, the utility model following beneficial effect has:
(1) the utility model provides a switch network adopts the multilevel switch to cascade, and each switch combines the little equipment technology of MIC to realize through naked chip design, and the module of independent encapsulation passes through high isolation rigid cable interconnection, to the special figurative design of rigid cable, realizes high isolation, low insertion loss, miniaturization, high reliable switch network.
(2) The utility model discloses the attenuation network adopts the independent encapsulation module of MIC microfabrication technology to cascade, adopts the interconnection of high isolation rigid cable, to the special figurative design of rigid cable, practices thrift the space and guarantees the reliability, realizes the adjustable attenuation network of high dynamic range.
(3) The utility model discloses transmission channel output signal is stable, the power fluctuation of full temperature (-10- +45 ℃) within range is < 0.5dB, receiving channel adopts multistage temperature compensator, reverse compensation is carried out to the amplifier performance, gain is up to 60 dB's receiving channel, the gain fluctuation of full temperature (-10- +45 ℃) within range is < 0.5dB, transmission channel output all adopts high isolation switch with the receiving channel input in addition, can carry out fast switch over to main signal and calibration signal, send and receive the isolation when guaranteeing the calibration.
Drawings
FIG. 1 is a system link diagram of an embodiment 1 of a high-precision microwave internal calibrator for a transceiver subsystem;
FIG. 2 is a system link diagram of an embodiment 2 of a high-precision microwave internal calibrator for a transceiver subsystem;
FIG. 3 is a link diagram of a transmitting channel of embodiment 2 of a high-precision microwave internal calibrator for a transceiver subsystem;
FIG. 4 is a receiving channel link diagram of the transceiver subsystem in the embodiment 2 of the high-precision microwave internal calibrator
Fig. 5 is a layout diagram of a switching network and an attenuation network of an embodiment 2 of a high-precision microwave internal calibrator of a transceiver subsystem.
Reference numerals:
1. a switching network; 11. a first switch; 12. a first switch module; 13. a second switch module; 2. a transmission channel; 21. a first filter; 22. a first power amplifier; 23. A first mixer; 24. a second filter; 25. a second power amplifier; 26. a transmit channel switch; 3. a receiving channel; 31. an input switch; 32. a third filter; 33. a first compensator; 34. a third power amplifier; 35. a second compensator; 36. a third mixer; 37. a fourth power amplifier; 38. a fourth mixer; 39. a fifth power amplifier; 3a, a third compensator; 4. an attenuation network; 41. a first attenuation module; 42. a second attenuation module; 43. and a third attenuation module.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example 1
As shown in fig. 1, a high-precision microwave internal calibrator for a transceiver subsystem comprises a switch network 1, a transmitting channel 2, a receiving channel 3 and an attenuation network 4;
the switch network 1 is electrically connected with the transmitting channel 2, the receiving channel 3, the attenuation network 4 and the antenna, the transmitting channel 2 is electrically connected with a system transmitting link, and the receiving channel 3 is electrically connected with a system receiving link;
the switch network 1 comprises a first switch 11, a first switch module 12 and a second switch module 13 which are connected with the first switch 11 and have the same structure, wherein the first switch module 12 is electrically connected with the transmitting channel 2 and the attenuation network 4; the second switch module 13 is electrically connected with the receiving channel 3 and the attenuation network 4;
the switch network 1 is used for gating, the switch network 1 is used for receiving the transmitting calibration signal sent by the transmitting channel 2 and sending the transmitting calibration signal to the antenna, the switch network 1 is used for receiving the transmitting calibration signal sent by the transmitting channel 2 and sending the transmitting calibration signal to the attenuation network 4, the switch network 1 is used for receiving the receiving calibration signal from the antenna and sending the receiving calibration signal to the attenuation network 4, and the switch network 1 is used for receiving the receiving calibration signal from the antenna and sending the receiving calibration signal to the receiving channel 3; the switch network 1 is used for receiving the receiving calibration signal sent from the attenuation network 4 and sending the receiving calibration signal to the receiving channel 3;
the transmitting channel 2 is used for receiving the intermediate frequency transmitting signal, converting the intermediate frequency transmitting signal into a main signal after filtering, amplifying, mixing, secondary filtering and secondary amplifying, outputting the main signal to a system transmitting link, the transmitting channel 2 is used for receiving the intermediate frequency transmitting signal, converting the intermediate frequency transmitting signal into a transmitting calibration signal after filtering, amplifying, mixing, secondary filtering and secondary amplifying, and outputting the transmitting calibration signal to the switch network 1, and the main signal and the transmitting calibration signal are radio frequency signals;
the receiving channel 3 is used for receiving a radio frequency input signal sent by a system receiving link and converting the radio frequency input signal into an intermediate frequency receiving signal to output the intermediate frequency receiving signal to the outside, and the receiving channel 3 is used for receiving a receiving calibration signal output by the switch network 1 and converting the receiving calibration signal into the intermediate frequency receiving signal to output the intermediate frequency receiving signal to the outside;
example 2
As shown in fig. 2, a high-precision microwave internal calibrator for a transceiver subsystem comprises a switch network 1, a transmitting channel 2, a receiving channel 3 and an attenuation network 4;
the switch network 1 is electrically connected with the transmitting channel 2, the receiving channel 3, the attenuation network 4 and the antenna, the transmitting channel 2 is electrically connected with a system transmitting link, and the receiving channel 3 is electrically connected with a system receiving link;
the switch network 1 comprises a first switch 11, a first switch module 12 and a second switch module 13 which are connected with the first switch 11 and have the same structure, wherein the first switch module 12 is electrically connected with the transmitting channel 2 and the attenuation network 4; the second switch module 13 is electrically connected with the receiving channel 3 and the attenuation network 4; the first switch module 12 comprises a cascade connection primary switch and a cascade connection secondary switch, and the first switch module 12 is independently packaged;
the switch network 1 is used for gating, the switch network 1 is used for receiving the transmitting calibration signal sent by the transmitting channel 2 and sending the transmitting calibration signal to the antenna, the switch network 1 is used for receiving the transmitting calibration signal sent by the transmitting channel 2 and sending the transmitting calibration signal to the attenuation network 4, the switch network 1 is used for receiving the receiving calibration signal from the antenna and sending the receiving calibration signal to the attenuation network 4, and the switch network 1 is used for receiving the receiving calibration signal from the antenna and sending the receiving calibration signal to the receiving channel 3; the switch network 1 is used for receiving the receiving calibration signal sent from the attenuation network 4 and sending the receiving calibration signal to the receiving channel 3;
as shown in fig. 3, the transmission channel 2 includes a first filter 21, a first power amplifier 22, a first mixer 23, a second filter 24, a second power amplifier 25, and a transmission channel switch 26, which are connected in sequence; the transmitting channel 2 is used for receiving the intermediate frequency transmitting signal, converting the intermediate frequency transmitting signal into a main signal after filtering, amplifying, mixing, secondary filtering and secondary amplifying, outputting the main signal to a system transmitting link through a transmitting channel switch 26, the transmitting channel 2 is used for receiving the intermediate frequency transmitting signal, converting the intermediate frequency transmitting signal into a transmitting calibration signal after filtering, amplifying, mixing, secondary filtering and secondary amplifying, outputting the transmitting calibration signal to the switch network 1, pushing a second power amplifier 25 in front of the transmitting channel switch 26 to a saturated state, pushing the saturation depth of the second power amplifier to 3-5 dB by adjusting the attenuation value of the link, and the main signal and the transmitting calibration signal are radio frequency signals; the input port of the transmitting channel 2 adopts a high isolating switch;
as shown in fig. 4, the reception channel 3 includes an input switch 31, a third filter 32, a first compensator 33, a third power amplifier 34, a second compensator 35, a third mixer 36, a fourth power amplifier 37, a fourth mixer 38, a fifth power amplifier 39, and a third compensator 3a, which are connected in this order; the receiving channel 3 is used for receiving a radio frequency input signal sent by a system receiving link and converting the radio frequency input signal into an intermediate frequency receiving signal to output the intermediate frequency receiving signal to the outside, and the receiving channel 3 is used for receiving a receiving calibration signal output by the switch network 1 and converting the receiving calibration signal into the intermediate frequency receiving signal to output the intermediate frequency receiving signal to the outside; a multi-stage temperature compensator is arranged in the receiving channel 3 to control the gain stability of the receiving channel, and the gain fluctuation of 80dB in the full temperature range is less than or equal to 0.5 dB; the input port of the receiving channel 3 adopts a high isolating switch; the radio frequency input signal and the receiving calibration signal are Ku/Ka frequency band radio frequency signals, the receiving channel 3 is used for down-converting the received Ku/Ka frequency band radio frequency signals to an S frequency band and then to an intermediate frequency receiving signal, and the intermediate frequency transmitting signal and the intermediate frequency receiving signal are 120MHz intermediate frequency signals; as shown in fig. 5, the receiving channel 3 includes a first cavity for down-converting the Ku/Ka band radio frequency signal to the S band and a second cavity for down-converting the S band to 120MHz intermediate frequency, and the attenuation network 4, the switch network 1, the first cavity and the second cavity are all independently formed into cavities by adopting MIC process;
the attenuation network 4 comprises a first attenuation module 41, a second attenuation module 42 and a third attenuation module 43 which are connected in sequence; the attenuation network 4 is used for receiving the transmitting calibration signal sent by the switch network 1, adjusting the signal intensity through attenuation presetting, generating a receiving calibration signal after attenuation, outputting the receiving calibration signal to the switch network 1, and the attenuation network 4 is used for receiving the receiving calibration signal sent by the switch network 1, presetting the attenuation of the attenuation network to the maximum, attenuating and taking the attenuation as self-calibration; the attenuation network 4 and the switch network 1 are connected by rigid cables.
The method of use of examples 1-2 was:
switching the network: the calibration device consists of a switch 1 and two switches 2, and a transmitting calibration signal is output through a switch network through a transmitting channel and is supplied to an antenna network to calibrate a receiving channel of a T/R component; and the received calibration signal enters a receiving channel through the switch network to calibrate a transmitting channel of the T/R component.
Attenuation network: the device consists of three attenuation modules, wherein the attenuation adjustable range of each module is 30dB, the attenuation adjustable range of each module is interconnected with a switch network through a switch, calibration signals transmitted by a transmitting channel are received, the dynamic state of the whole link is simulated, and the calibration signals enter a receiving channel.
Emission channel: and performing up-conversion on the 120MHz intermediate frequency transmitting signal fin twice, performing up-conversion on the 120MHz intermediate frequency transmitting signal fin to an S frequency band, performing up-conversion on the S frequency band to a Ku/Ka frequency band radio frequency signal, performing amplification and filtering, pushing a final amplifier to saturation, wherein the saturation depth is 3dB, and switching to a main signal ft or a transmitting calibration signal frt through a switch.
Receiving a channel: the method comprises the steps of carrying out down-conversion on a received Ku/Ka frequency band radio frequency signal twice, respectively receiving a Ku/Ka frequency band calibration signal from a switch network and an attenuation network, carrying out down-conversion to an S frequency band, and carrying out down-conversion from the S frequency band to a 120MHz intermediate frequency receiving signal fout, wherein the signals comprise amplification, filtering and the like, a temperature compensator is reasonably designed in a channel, the gain stability of the temperature compensator is controlled, and the gain fluctuation in a full temperature range is less than or equal to 0.5 dB.
In the high-precision microwave internal calibrator for the transceiving subsystem, the switching network, the attenuation network, the S-to-Ku/Ka frequency band up-conversion and the Ku/Ka frequency band-to-S down-conversion adopt MIC (many integrated core) technology to independently form a cavity, and on the premise of not influencing the electrical property, the cavity is locally hollowed out, so that the increase of the volume and the weight is effectively reduced, the modules are connected by adopting rigid cables, and the special-shaped design ensures enough turning radius in a limited space and improves the reliability.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (10)
1. A transceiver subsystem high accuracy microwave internal standard ware which characterized in that: the device comprises a switch network (1), a transmitting channel (2), a receiving channel (3) and an attenuation network (4);
the switch network (1) is electrically connected with the transmitting channel (2), the receiving channel (3), the attenuation network (4) and the antenna, the transmitting channel (2) is electrically connected with a system transmitting link, and the receiving channel (3) is electrically connected with a system receiving link;
the switch network (1) comprises a first switch (11), a first switch module (12) and a second switch module (13) which are connected with the first switch (11) and have the same structure, wherein the first switch module (12) is electrically connected with the transmitting channel (2) and the attenuation network (4); the second switch module (13) is electrically connected with the receiving channel (3) and the attenuation network (4);
the switch network (1) is used for gating, the switch network (1) is used for receiving a transmission calibration signal sent by the transmission channel (2) and sending the transmission calibration signal to the antenna, the switch network (1) is used for receiving the transmission calibration signal sent by the transmission channel (2) and sending the transmission calibration signal to the attenuation network (4), the switch network (1) is used for receiving a reception calibration signal from the antenna and sending the reception calibration signal to the attenuation network (4), and the switch network (1) is used for receiving the reception calibration signal from the antenna and sending the reception calibration signal to the reception channel (3); the switch network (1) is used for receiving the receiving calibration signal sent from the attenuation network (4) and sending the receiving calibration signal to the receiving channel (3);
the transmitting channel (2) is used for receiving an intermediate frequency transmitting signal, converting the intermediate frequency transmitting signal into a main signal after filtering, amplifying, mixing, secondary filtering and secondary amplifying, and outputting the main signal to the system transmitting link, the transmitting channel (2) is used for receiving the intermediate frequency transmitting signal, converting the intermediate frequency transmitting signal into a transmitting calibration signal after filtering, amplifying, mixing, secondary filtering and secondary amplifying, and outputting the transmitting calibration signal to the switch network (1), and the main signal and the transmitting calibration signal are radio frequency signals;
the receiving channel (3) is used for receiving a radio frequency input signal sent by the system receiving link and converting the radio frequency input signal into an intermediate frequency receiving signal to be output to the outside, and the receiving channel (3) is used for receiving the receiving calibration signal output by the switch network (1) and converting the receiving calibration signal into the intermediate frequency receiving signal to be output to the outside;
the attenuation network (4) is configured to receive the transmit calibration signal sent by the switch network (1), attenuate the transmit calibration signal, generate the receive calibration signal, and output the receive calibration signal to the switch network (1), and the attenuation network (4) is configured to receive the receive calibration signal sent by the switch network (1) and attenuate the receive calibration signal.
2. The high-precision microwave internal calibrator for transceiver subsystem as recited in claim 1, wherein: the attenuation network (4) comprises a first attenuation module (41), a second attenuation module (42) and a third attenuation module (43) which are connected in sequence.
3. The high-precision microwave internal calibrator for transceiver subsystem as recited in claim 1, wherein: the first switch module (12) comprises a cascade of a primary switch and a secondary switch, and the first switch module (12) is independently packaged.
4. The high-precision microwave internal calibrator for transceiver subsystem as recited in claim 1, wherein: the attenuation network (4) and the switch network (1) are connected by rigid cables.
5. The high-precision microwave internal calibrator for transceiver subsystem as recited in claim 1, wherein: and a multi-stage temperature compensator is arranged in the receiving channel (3).
6. The high-precision microwave internal calibrator for transceiver subsystem as recited in claim 1, wherein: and high isolating switches are adopted at the input ports of the transmitting channel (2) and the receiving channel (3).
7. The high-precision microwave internal calibrator for transceiver subsystem as recited in claim 1, wherein: the radio frequency input signal and the receiving calibration signal are Ku/Ka frequency band radio frequency signals, the receiving channel (3) is used for carrying out down-conversion on the received Ku/Ka frequency band radio frequency signals to an S frequency band and then to the intermediate frequency receiving signals, and the intermediate frequency transmitting signals and the intermediate frequency receiving signals are 120MHz intermediate frequency signals.
8. The high-precision microwave internal calibrator for transceiver subsystem as recited in claim 7, wherein: the receiving channel (3) comprises a first cavity used for down-converting the Ku/Ka frequency band radio-frequency signal to the S frequency band and a second cavity used for down-converting the S frequency band to 120MHz intermediate frequency, and the attenuation network (4), the switch network (1), the first cavity and the second cavity are all independently formed by adopting MIC technology.
9. The high-precision microwave internal calibrator for transceiver subsystem as recited in claim 1, wherein: the transmitting channel (2) comprises a first filter (21), a first power amplifier (22), a first mixer (23), a second filter (24), a second power amplifier (25) and a transmitting channel switch (26) which are connected in sequence.
10. The high-precision microwave internal calibrator for transceiver subsystem as recited in claim 1, wherein: the receiving channel (3) comprises an input switch (31), a third filter (32), a first compensator (33), a third power amplifier (34), a second compensator (35), a third mixer (36), a fourth power amplifier (37), a fourth mixer (38), a fifth power amplifier (39) and a third compensator (3a) which are connected in sequence.
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| CN202022583233.2U CN214045616U (en) | 2020-11-10 | 2020-11-10 | High-precision microwave internal calibrator for transceiver subsystem |
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| CN202022583233.2U CN214045616U (en) | 2020-11-10 | 2020-11-10 | High-precision microwave internal calibrator for transceiver subsystem |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112636844A (en) * | 2020-11-10 | 2021-04-09 | 北京遥测技术研究所 | High-precision microwave internal calibrator for transceiver subsystem |
| CN117039459A (en) * | 2023-10-09 | 2023-11-10 | 成都智芯雷通微***技术有限公司 | High-integration-level T/R assembly for millimeter wave active phased array |
-
2020
- 2020-11-10 CN CN202022583233.2U patent/CN214045616U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112636844A (en) * | 2020-11-10 | 2021-04-09 | 北京遥测技术研究所 | High-precision microwave internal calibrator for transceiver subsystem |
| CN112636844B (en) * | 2020-11-10 | 2023-03-31 | 北京遥测技术研究所 | High-precision microwave internal calibrator for transceiver subsystem |
| CN117039459A (en) * | 2023-10-09 | 2023-11-10 | 成都智芯雷通微***技术有限公司 | High-integration-level T/R assembly for millimeter wave active phased array |
| CN117039459B (en) * | 2023-10-09 | 2023-12-12 | 成都智芯雷通微***技术有限公司 | High-integration-level T/R assembly for millimeter wave active phased array |
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