CN215268266U - Radio frequency transceiving component for digital TR module - Google Patents
Radio frequency transceiving component for digital TR module Download PDFInfo
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- CN215268266U CN215268266U CN202121687062.6U CN202121687062U CN215268266U CN 215268266 U CN215268266 U CN 215268266U CN 202121687062 U CN202121687062 U CN 202121687062U CN 215268266 U CN215268266 U CN 215268266U
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Abstract
The utility model discloses a radio frequency transceiving component for a digital TR module, which comprises a radio frequency unit, a frequency conversion processing unit and a data conversion unit; the radio frequency unit comprises a radio frequency port, a calibration port, a coupler, a first filter, a circulator, a limiter, a low noise amplifier, a first power amplifier, a second power amplifier and a first single-pole double-throw switch; the frequency conversion processing unit comprises a second filter, a first mixer, a third filter, a first operational amplifier, a second operational amplifier, a fourth filter, a second mixer and a fifth filter; the data conversion unit comprises a second single-pole double-throw switch, an AGC amplifier, a sixth filter, an ADC module, a DAC module and a third operational amplifier. The utility model discloses integrated coupler and calibration port, the calibration for radio frequency transceiver module provides convenience.
Description
Technical Field
The utility model relates to the field of communications, especially, relate to a radio frequency transceiver module for digital TR module.
Background
Phased array antennas have become more and more widely used in the fields of communications, radar, and space sensing. The core component TR of the phased array antenna is also under continuous updating and gradually tends to be miniaturized and integrated.
The radio frequency transceiving component is mainly responsible for processing a baseband digital signal generated by the baseband equipment to obtain a radio frequency signal, and the radio frequency signal is transmitted to the outside through an antenna or receives an external radio frequency signal, and the radio frequency transceiving component is used for processing the radio frequency signal to obtain a baseband digital signal and transmitting the baseband digital signal to the baseband equipment; however, the existing rf transceiver module does not integrate the calibration function, and when performing calibration, it is necessary to perform signal transceiving between the calibration source with the antenna and the rf transceiver module to implement parameter testing of the rf transceiver module, and perform calibration of the rf transceiver module accordingly, but this will greatly increase the equipment cost of calibration.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's not enough, provide a radio frequency transceiver module for digital TR module, integrated coupler and calibration port, facilitate for the calibration of radio frequency transceiver module.
The purpose of the utility model is realized through the following technical scheme: a radio frequency transceiving component for a digital TR module comprises a radio frequency unit, a frequency conversion processing unit and a data conversion unit;
the radio frequency unit comprises a radio frequency port, a calibration port, a coupler, a first filter, a circulator, a limiter, a low noise amplifier, a first power amplifier, a second power amplifier and a first single-pole double-throw switch; one end of the first filter is connected with the radio frequency port through a coupler, and the other end of the first filter is connected with the circulator; the input end of the amplitude limiter is connected with the circulator, and the output end of the amplitude limiter is connected with the frequency conversion processing unit sequentially through the low noise amplifier and the first single-pole double-throw switch; the input end of the first power amplifier is connected with the frequency conversion processing unit through a first single-pole double-throw switch, and the output end of the first power amplifier is connected with the circulator through a second power amplifier; the calibration port is connected with the coupling end of the coupler;
the frequency conversion processing unit comprises a second filter, a first mixer, a third filter, a first operational amplifier, a second operational amplifier, a fourth filter, a second mixer and a fifth filter; one end of the second filter is connected with the radio frequency unit, and the other end of the second filter is connected with the third filter through the first mixer; the input end of the first operational amplifier is connected with the third filter, and the output end of the first operational amplifier is connected with the fourth filter; the input end of the second operational amplifier is connected with the fourth filter, and the output end of the second operational amplifier is connected with the third filter; the fourth filter is connected with the data conversion unit through the second frequency mixer and the fifth filter in sequence;
the data conversion unit comprises a second single-pole double-throw switch, an AGC amplifier, a sixth filter, an ADC module, a DAC module and a third operational amplifier; the input end of the AGC amplifier is connected with the frequency conversion processing unit through a second single-pole double-throw switch, the output end of the AGC amplifier is connected with the ADC module through a sixth filter, and the ADC module performs analog-to-digital conversion on the received signals to obtain baseband digital signals which are output; and the input end of the DAC module is accessed to a digital baseband signal to be transmitted, and after digital-to-analog conversion, the digital baseband signal is transmitted to the frequency conversion processing unit through the third operational amplifier and the second single-pole double-throw switch in sequence.
The utility model has the advantages that: the transmitting signal can be directly obtained from the calibration port in the signal transmitting calibration process, and the component parameter test and calibration in the transmitting direction can be carried out by combining the signal input by the data conversion unit; during the receiving and calibrating process, the calibration signal can be coupled to the radio frequency transceiving component through the calibration port and the coupler, and after the radio frequency transceiving component processes the calibration signal, the calibration signal is output to the outside through the data conversion unit, the component parameter test and calibration in the receiving direction can be completed only by combining the input calibration signal and the signal output by the data conversion unit, the calibration source is not required to receive and transmit the signal through the antenna, the equipment cost of calibration is effectively reduced, and convenience is provided for the calibration of the radio frequency transceiving component.
Drawings
Fig. 1 is a schematic view of the present invention.
Detailed Description
The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.
As shown in fig. 1, a radio frequency transceiving component for a digital TR module includes a radio frequency unit, a frequency conversion processing unit, and a data conversion unit;
the radio frequency unit comprises a radio frequency port, a calibration port, a coupler, a first filter, a circulator, a limiter, a low noise amplifier, a first power amplifier, a second power amplifier and a first single-pole double-throw switch; one end of the first filter is connected with the radio frequency port through a coupler, and the other end of the first filter is connected with the circulator; the input end of the amplitude limiter is connected with the circulator, and the output end of the amplitude limiter is connected with the frequency conversion processing unit sequentially through the low noise amplifier and the first single-pole double-throw switch; the input end of the first power amplifier is connected with the frequency conversion processing unit through a first single-pole double-throw switch, and the output end of the first power amplifier is connected with the circulator through a second power amplifier; the calibration port is connected with the coupling end of the coupler;
the frequency conversion processing unit comprises a second filter, a first mixer, a third filter, a first operational amplifier, a second operational amplifier, a fourth filter, a second mixer and a fifth filter; one end of the second filter is connected with the radio frequency unit, and the other end of the second filter is connected with the third filter through the first mixer; the input end of the first operational amplifier is connected with the third filter, and the output end of the first operational amplifier is connected with the fourth filter; the input end of the second operational amplifier is connected with the fourth filter, and the output end of the second operational amplifier is connected with the third filter; the fourth filter is connected with the data conversion unit through the second frequency mixer and the fifth filter in sequence;
the data conversion unit comprises a second single-pole double-throw switch, an AGC amplifier, a sixth filter, an ADC module, a DAC module and a third operational amplifier; the input end of the AGC amplifier is connected with the frequency conversion processing unit through a second single-pole double-throw switch, the output end of the AGC amplifier is connected with the ADC module through a sixth filter, and the ADC module performs analog-to-digital conversion on the received signals to obtain baseband digital signals which are output; and the input end of the DAC module is accessed to a digital baseband signal to be transmitted, and after digital-to-analog conversion, the digital baseband signal is transmitted to the frequency conversion processing unit through the third operational amplifier and the second single-pole double-throw switch in sequence.
In an embodiment of the present application, a first fixed terminal of the first single-pole double-throw switch is connected to the low noise amplifier, a second fixed terminal of the first single-pole double-throw switch is connected to the first power amplifier, and a moving terminal of the first single-pole double-throw switch is connected to the second filter. And the local oscillation signal input end of the first frequency mixer is connected with a port LO1 for inputting the local oscillation signal of the first frequency mixer. And the local oscillation signal input end of the second frequency mixer is connected with a port LO2 for inputting the local oscillation signal of the second frequency mixer. And a first fixed end of the second single-pole double-throw switch is connected with the AGC amplifier, a second fixed end of the second single-pole double-throw switch is connected with the third operational amplifier, and a movable end of the second single-pole double-throw switch is connected with the fifth filter. The first filter to the sixth filter are all band-pass filters.
The working principle of the utility model is as follows: in the signal transmitting process, a first single-pole double-throw switch in the radio frequency transceiving component is switched, and a signal path between a second filter and a first power amplifier is switched on; simultaneously switching a second single-pole double-throw switch in the radio frequency transceiving component, switching on a signal path between a fifth filter and a third operational amplifier, converting a digital baseband signal to be transmitted into an analog signal through a DAC module, then entering a frequency conversion processing unit through the third operational amplifier and the second single-pole double-throw switch, carrying out up-conversion frequency mixing (twice) and filtering amplification processing by the frequency conversion processing unit, then entering a first power amplifier and a second power amplifier through a first single-pole double-throw switch of the radio frequency unit, transmitting the signal to a radio frequency port through a circulator, and transmitting the signal to the outside through the radio frequency port or transmitting the signal through an antenna;
in the signal receiving process, a first single-pole double-throw switch in the radio frequency transceiving component is switched to connect a signal path between the low-noise amplifier and the second filter, and meanwhile, a second single-pole double-throw switch in the radio frequency transceiving component is switched to connect a signal path between the fifth filter and the AGC amplifier; a radio frequency signal to be received is input from a radio frequency port, is transmitted to a low noise amplifier through a coupler, a first filter, a circulator and an amplitude limiter, and is transmitted to a frequency conversion processing unit through a first single-pole double-throw switch after being amplified by the low noise amplifier. After the frequency conversion processing unit carries out down-conversion frequency mixing and filtering amplification processing, the signals are transmitted to an AGC amplifier through a second single-pole double-throw switch of the data conversion unit, and after the received signals are amplified by the AGC amplifier, the signals are transmitted to an ADC module through a sixth filter for analog-to-digital conversion, so that baseband received signals are obtained and output to the outside.
Meanwhile, due to the integration of the coupler and the calibration port, the transmitting signal can be directly obtained from the calibration port in the signal transmitting and calibrating process, and the component parameter test and calibration of the transmitting direction can be carried out by combining the signal input by the data conversion unit; during the receiving and calibrating process, the calibration signal can be coupled to the radio frequency transceiving component through the calibration port and the coupler, and after the radio frequency transceiving component processes the calibration signal, the calibration signal is output to the outside through the data conversion unit, the component parameter test and calibration in the receiving direction can be completed only by combining the input calibration signal and the signal output by the data conversion unit, the calibration source is not required to receive and transmit the signal through the antenna, the equipment cost of calibration is effectively reduced, and convenience is provided for the calibration of the radio frequency transceiving component.
It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit and essence of the invention, and these changes and modifications should fall within the scope of the appended claims.
Claims (6)
1. A radio frequency transceiver assembly for use in a digital TR module, comprising: the device comprises a radio frequency unit, a frequency conversion processing unit and a data conversion unit;
the radio frequency unit comprises a radio frequency port, a calibration port, a coupler, a first filter, a circulator, a limiter, a low noise amplifier, a first power amplifier, a second power amplifier and a first single-pole double-throw switch; one end of the first filter is connected with the radio frequency port through a coupler, and the other end of the first filter is connected with the circulator; the input end of the amplitude limiter is connected with the circulator, and the output end of the amplitude limiter is connected with the frequency conversion processing unit sequentially through the low noise amplifier and the first single-pole double-throw switch; the input end of the first power amplifier is connected with the frequency conversion processing unit through a first single-pole double-throw switch, and the output end of the first power amplifier is connected with the circulator through a second power amplifier; the calibration port is connected with the coupling end of the coupler;
the frequency conversion processing unit comprises a second filter, a first mixer, a third filter, a first operational amplifier, a second operational amplifier, a fourth filter, a second mixer and a fifth filter; one end of the second filter is connected with the radio frequency unit, and the other end of the second filter is connected with the third filter through the first mixer; the input end of the first operational amplifier is connected with the third filter, and the output end of the first operational amplifier is connected with the fourth filter; the input end of the second operational amplifier is connected with the fourth filter, and the output end of the second operational amplifier is connected with the third filter; the fourth filter is connected with the data conversion unit through the second frequency mixer and the fifth filter in sequence;
the data conversion unit comprises a second single-pole double-throw switch, an AGC amplifier, a sixth filter, an ADC module, a DAC module and a third operational amplifier; the input end of the AGC amplifier is connected with the frequency conversion processing unit through a second single-pole double-throw switch, the output end of the AGC amplifier is connected with the ADC module through a sixth filter, and the ADC module performs analog-to-digital conversion on the received signals to obtain baseband digital signals which are output; and the input end of the DAC module is accessed to a digital baseband signal to be transmitted, and after digital-to-analog conversion, the digital baseband signal is transmitted to the frequency conversion processing unit through the third operational amplifier and the second single-pole double-throw switch in sequence.
2. A radio frequency transceiver component for a digital TR module as claimed in claim 1, wherein: the first fixed end of the first single-pole double-throw switch is connected with the low-noise amplifier, the second fixed end of the first single-pole double-throw switch is connected with the first power amplifier, and the movable end of the first single-pole double-throw switch is connected with the second filter.
3. A radio frequency transceiver component for a digital TR module as claimed in claim 1, wherein: and the local oscillation signal input end of the first frequency mixer is connected with a port LO1 for inputting the local oscillation signal of the first frequency mixer.
4. A radio frequency transceiver component for a digital TR module as claimed in claim 1, wherein: and the local oscillation signal input end of the second frequency mixer is connected with a port LO2 for inputting the local oscillation signal of the second frequency mixer.
5. A radio frequency transceiver component for a digital TR module as claimed in claim 1, wherein: and a first fixed end of the second single-pole double-throw switch is connected with the AGC amplifier, a second fixed end of the second single-pole double-throw switch is connected with the third operational amplifier, and a movable end of the second single-pole double-throw switch is connected with the fifth filter.
6. A radio frequency transceiver component for a digital TR module as claimed in claim 1, wherein: the first filter to the sixth filter are all band-pass filters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121687062.6U CN215268266U (en) | 2021-07-23 | 2021-07-23 | Radio frequency transceiving component for digital TR module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121687062.6U CN215268266U (en) | 2021-07-23 | 2021-07-23 | Radio frequency transceiving component for digital TR module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215268266U true CN215268266U (en) | 2021-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121687062.6U Active CN215268266U (en) | 2021-07-23 | 2021-07-23 | Radio frequency transceiving component for digital TR module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215268266U (en) |
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2021
- 2021-07-23 CN CN202121687062.6U patent/CN215268266U/en active Active
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