A polarization reconfigurable dual-channel receiving module

Abstract

This invention discloses a polarization reconfiguration dual-channel receiving module, comprising a receiving component, a switching power divider network, an amplitude and phase control chip, and a down-conversion component. The receiving component includes six H-polarized receiving components and six V-polarized receiving components. The switching power divider network includes twelve 1-to-2 power dividers, twelve double-pole double-throw switches, twelve two-in-one combiners, and two six-in-one combiners. The six H-polarized signals are respectively fed into the six H-polarized receiving components, and the six V-polarized signals are respectively fed into the six V-polarized receiving components for low-noise amplification and limiting before being output to the switching power divider network. After passing through the switching power divider network, two signals are formed, which simultaneously and independently operate in H-polarization, V-polarization, and 45° slant polarization modes. This invention can meet the requirements for different polarizations, amplitude control, and beam pointing when radar and reconnaissance functions are operating simultaneously, and has the advantages of small equipment quantity, independent polarization control, independent amplitude control, and independent phase control.

Description

Technical Field

[0001] This invention relates to the field of microwave component technology, and in particular to a polarization reconfiguration dual-channel receiving module. Background Technology

[0002] The receiver module is the core component of a multi-functional phased array system. A typical multi-functional phased array system has radar and reconnaissance functions. In different application scenarios, radar and reconnaissance can operate simultaneously in H-polarization, V-polarization, and 45° oblique polarization. Currently, it is difficult to use a single receiver module to meet the requirements of simultaneous operation of multiple functions in different polarization modes. If two receiver modules are used, the equipment size will be large. At present, time-division multiplexing is mainly used domestically and internationally to achieve simultaneous radar and reconnaissance operation of multi-functional phased array systems. This technology has the following main shortcomings:

[0003] 1. Radar reception and reconnaissance reception have different polarization requirements, and they do not meet their respective polarization requirements when operating simultaneously.

[0004] 2. Each receiver module has only one phase shifter. Due to the different beam directions, radar reception and reconnaissance reception can only operate in a time-division manner.

[0005] 3. The use of two sets of receiving modules results in a large number of devices, which puts great pressure on the integrated design and cost of the phased array system;

[0006] Given the current status and shortcomings of multifunctional phased array receiver modules both domestically and internationally, there is an urgent need to research a polarization-reconfigurable dual-channel receiver module to address the requirement of simultaneous radar and reconnaissance reception, with each operating in a different polarization. Summary of the Invention

[0007] The purpose of this invention is to propose a polarization reconfiguration dual-channel receiving module that can meet the requirements of different polarizations, amplitude control, and beam pointing when both radar and reconnaissance functions are working simultaneously, with a small number of devices and independent polarization, amplitude, and phase control.

[0008] The technical solution to achieve the objective of this invention is: a polarization reconfiguration dual-channel receiving module, including a receiving component, a switching power divider network, a first and second amplitude phase control chip, and a first and second down-conversion component;

[0009] Six H-polarized signals and six V-polarized signals enter the receiving component, where they are amplified and limited by low noise before being output to the switching power divider network. After passing through the switching power divider network, two signals with different polarizations are formed. The two signals can operate independently and simultaneously in H-polarization, V-polarization, and 45° slant polarization. The two signals pass through the first and second amplitude and phase control chips, respectively. After amplitude and phase control are performed according to the requirements of radar and reconnaissance for amplitude and phase control, the signals are output to the first and second down-conversion components, respectively, and converted to intermediate frequency output. This enables radar and reconnaissance to receive signals simultaneously in different polarizations.

[0010] Compared with the prior art, the present invention has the following significant advantages: (1) By integrating the switching power divider network into the conventional receiving component, the simultaneous operation of radar reconnaissance can be achieved without the need to make a completely new design to the receiving component circuit; (2) The receiving module has the advantages of independent polarization control, independent amplitude control, and independent phase control, which can meet the requirements of different polarization, amplitude control, and beam pointing when radar and reconnaissance work simultaneously, and the number of devices is small. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a polarization reconfigurable dual-channel receiving module according to the present invention. Detailed Implementation

[0012] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0013] Combination Figure 1 The present invention provides a polarization reconfiguration dual-channel receiving module. 1. A polarization reconfiguration dual-channel receiving module, characterized in that it includes a receiving component, a switching power divider network, a first to a second amplitude phase control chip, and a first to a second down-conversion component.

[0014] Six H-polarized signals and six V-polarized signals enter the receiving component, where they are amplified and limited by low noise before being output to the switching power divider network. After passing through the switching power divider network, two signals with different polarizations are formed. The two signals can operate independently and simultaneously in H-polarization, V-polarization, and 45° slant polarization. The two signals pass through the first and second amplitude and phase control chips, respectively. After amplitude and phase control are performed according to the requirements of radar and reconnaissance for amplitude and phase control, the signals are output to the first and second down-conversion components, respectively, and converted to intermediate frequency output. This enables radar and reconnaissance to receive signals simultaneously in different polarizations.

[0015] As a specific example, the receiving components include first to sixth H-polarized receiving components HR1 to HR6 and first to sixth V-polarized receiving components VR1 to VR6;

[0016] The first H-polarized receiver HR1, the first V-polarized receiver VR1, the second H-polarized receiver HR2, the second V-polarized receiver VR2, the third H-polarized receiver HR3, the third V-polarized receiver VR3, the fourth H-polarized receiver HR4, the fourth V-polarized receiver VR4, the fifth H-polarized receiver HR5, the fifth V-polarized receiver VR5, the sixth H-polarized receiver HR6, and the sixth V-polarized receiver VR6 are arranged sequentially and are all connected to the switching power divider network.

[0017] As a specific example, the switching power divider network includes first to sixth H-polarization power dividers FH1 to FH6, first to sixth V-polarization power dividers FV1 to FV6, first to twelfth double-pole double-throw switches SP1 to SP12, first to sixth H-polarization combiners HH1 to HH6, first to sixth V-polarization combiners HV1 to HV6, radar polarization combiner T1, and reconnaissance polarization combiner T2;

[0018] The first to sixth H-polarized power dividers FH1 to FH6 respectively receive the H-polarized signals from the first to sixth H-polarized receiving components HR1 to HR6, and the first to sixth V-polarized power dividers FV1 to FV6 respectively receive the V-polarized signals from the first to sixth V-polarized receiving components VR1 to VR6.

[0019] The first H-polarization power divider FH1, the first V-polarization power divider FV1, the second H-polarization power divider FH2, the second V-polarization power divider FV2, the third H-polarization power divider FH3, the third V-polarization power divider FV3, the fourth H-polarization power divider FH4, the fourth V-polarization power divider FV4, the fifth H-polarization power divider FH5, the fifth V-polarization power divider FV5, the sixth H-polarization power divider FH6, and the sixth V-polarization power divider FV6 each divide the received signal into two equal paths. Each pair of paths is sequentially connected to the two fixed terminals of the first to twelfth double-pole double-throw switches SP1 to SP12. The switch arms a and b of the first to twelfth double-pole double-throw switches SP1 to SP12 are respectively connected to the first H-polarization combiner HH1, the first V-polarization combiner HV1, and the second H-polarization combiner HH2. 2. Ports 1 and 2 of the second V-polarized synthesizer HV2, the third H-polarized synthesizer HH3, the third V-polarized synthesizer HV3, the fourth H-polarized synthesizer HH4, the fourth V-polarized synthesizer HV4, the fifth H-polarized synthesizer HH5, the fifth V-polarized synthesizer HV5, the sixth H-polarized synthesizer HH6, and the sixth V-polarized synthesizer HV6 are connected as follows: Terminal a of the first double-pole double-throw switch SP1 is connected to port 1 of the first H-polarized synthesizer HH1, and terminal b of the first double-pole double-throw switch SP1 is connected to port 2 of the first H-polarized synthesizer HH1; Terminal a of the second double-pole double-throw switch SP2 is connected to port 1 of the first V-polarized synthesizer HV1, and terminal b of the second double-pole double-throw switch SP2 is connected to port 2 of the first V-polarized synthesizer HV1; the other five groups are similar.

[0020] The six signals output from the first to sixth H polarization combiners HH1 to HH6 are all input to the radar polarization combiner T1, and combined into one signal for output to the first phase control chip; the six signals output from the first to sixth V polarization combiners HV1 to HV6 are all input to the reconnaissance polarization combiner T2, and combined into one signal for output to the second phase control chip.

[0021] As a specific example, after the signal is distributed by the switching power divider network, a radar signal and a reconnaissance signal are output. The radar signal is output to the first amplitude phase control chip, and after being mixed with local oscillator 1 by the first frequency conversion component, the radar signal is output. The reconnaissance signal is output to the second amplitude phase control chip, and after being mixed with local oscillator 2 by the second frequency conversion component, the reconnaissance signal is output.

[0022] As a specific example, the specific signal flow inside the power divider network of a radar under various polarization modes is as follows:

[0023] 1H polarization working mode

[0024] The first H-polarization receiver HR1 outputs an H-polarization signal. The a-arm of the first double-pole double-throw switch SP1 is connected to port 1 of the first H-polarization synthesizer HH1. After passing through the first H-polarization synthesizer HH1, one H-polarization signal is output. The second to sixth H-polarization receivers HR2 to HR6 each output one H-polarization signal according to the same signal flow. The six H-polarization signals are combined by the radar polarization synthesizer T1 and then output, thus realizing radar H-polarization.

[0025] 2V polarization operation mode

[0026] The first V-polarization receiver VR1 outputs a V-polarization signal. The a-arm of the second double-pole double-throw switch SP2 is connected to port 2 of the first H-polarization synthesizer HH1. After passing through the first H-polarization synthesizer HH1, one V-polarization signal is output. The second to sixth V-polarization receivers VR2 to VR6 each output one V-polarization signal according to the same signal flow. The six V-polarization signals are combined by the radar polarization synthesizer T1 and then output, thus realizing radar V-polarization.

[0027] 345° slant polarization operating mode

[0028] The first H-polarization receiver HR1 outputs an H-polarization signal, and arm a of the first double-pole double-throw switch SP1 is connected to port 1 of the first H-polarization synthesizer HH1; the first V-polarization receiver VR1 outputs a V-polarization signal, and arm a of the second double-pole double-throw switch SP2 is connected to port 2 of synthesizer H1; the two signals are combined by the first H-polarization synthesizer HH1 to output one 45° slant polarization signal; the second to sixth H-polarization receivers HR2 to HR6 and the second to sixth V-polarization receivers VR2 to VR6 each output one 45° slant polarization signal according to the same signal flow; the six 45° slant polarization signals are combined by the radar polarization synthesizer T1 and then output, thus realizing the radar 45° slant polarization.

[0029] As a specific example, the specific signal flow inside the switching power divider network under various polarization modes is investigated as follows:

[0030] 1H polarization working mode

[0031] The first H-polarization receiver HR1 outputs an H-polarization signal. The b-arm of the first double-pole double-throw switch SP1 is connected to port 1 of the first V-polarization synthesizer HV1. After passing through the first V-polarization synthesizer HV1, one H-polarization signal is output. The second to sixth H-polarization receivers HR2 to HR6 each output one H-polarization signal according to the same signal flow. The six H-polarization signals are synthesized by the detection polarization synthesizer T2 and then output, thus realizing the detection of H-polarization.

[0032] 2V polarization operation mode

[0033] The first V-polarization receiver VR1 outputs a V-polarization signal. The b-arm of the second double-pole double-throw switch SP2 is connected to port 2 of the first V-polarization synthesizer HV1. After passing through the first V-polarization synthesizer HV1, one V-polarization signal is output. The second to sixth V-polarization receivers VR2 to VR6 each output one V-polarization signal according to the same signal flow. The six V-polarization signals are synthesized by the detection polarization synthesizer T2 and then output, thus realizing the detection of V-polarization.

[0034] 345° slant polarization operating mode

[0035] The first H-polarization receiver HR1 outputs an H-polarization signal, and the b-arm of the first double-pole double-throw switch SP1 is connected to port 1 of the first V-polarization synthesizer HV1. The first V-polarization receiver VR1 outputs a V-polarization signal, and the b-arm of the second double-pole double-throw switch SP2 is connected to port 2 of the first V-polarization synthesizer HV1. The two signals are combined by the first V-polarization synthesizer HV1 to output a 45° slant polarization signal. The second to sixth H-polarization receivers HR2 to HR6 and the second to sixth V-polarization receivers VR2 to VR6 each output a 45° slant polarization signal according to the same signal flow. The six 45° slant polarization signals are combined by the reconnaissance polarization synthesizer T2 and then output, thus realizing the reconnaissance of 45° slant polarization.

[0036] As a specific example, the specific signal flow within the switching power divider network when radar and reconnaissance operate simultaneously under different polarizations is as follows:

[0037] When radar and reconnaissance systems operate simultaneously under different polarizations, the switching power distribution network superimposes the polarizations of the radar and reconnaissance systems, and outputs their respective signals.

[0038] As a specific example, the radar V-polarization + reconnaissance V-polarization working mode is a superposition of the radar V-polarization working mode and the reconnaissance V-polarization working mode, as follows:

[0039] The first V-polarization receiver VR1 outputs a V-polarization signal. The a-arm of the second double-pole double-throw switch SP2 is connected to port 2 of the first H-polarization synthesizer HH1. After passing through the first H-polarization synthesizer HH1, one V-polarization signal is output. The second to sixth V-polarization receivers VR2 to VR6 each output one V-polarization signal according to the same signal flow. The six V-polarization signals are combined by the radar polarization synthesizer T1 and then output, thus realizing radar V-polarization.

[0040] The first V-polarization receiver VR1 outputs a V-polarization signal. The b-arm of the second double-pole double-throw switch SP2 is connected to port 2 of the first V-polarization synthesizer HV1. After passing through the first V-polarization synthesizer HV1, one V-polarization signal is output. The second to sixth V-polarization receivers VR2 to VR6 each output one V-polarization signal according to the same signal flow. The six V-polarization signals are synthesized by the detection polarization synthesizer T2 and then output, thus realizing the detection of V-polarization.

[0041] The two operating modes work simultaneously, achieving a radar V-polarization + reconnaissance V-polarization working mode.

[0042] As a specific example, the radar H-polarization + reconnaissance 45° oblique polarization operating mode is a superposition of the radar H-polarization operating mode and the reconnaissance 45° oblique polarization operating mode, as detailed below:

[0043] The first H-polarization receiver HR1 outputs an H-polarization signal. The a-arm of the first double-pole double-throw switch SP1 is connected to port 1 of the first H-polarization synthesizer HH1. After passing through the first H-polarization synthesizer HH1, one H-polarization signal is output. The second to sixth H-polarization receivers HR2 to HR6 each output one H-polarization signal according to the same signal flow. The six H-polarization signals are combined by the radar polarization synthesizer T1 and then output, thus realizing radar H-polarization.

[0044] The first H-polarization receiver HR1 outputs an H-polarization signal, and the b-arm of the first double-pole double-throw switch SP1 is connected to port 1 of the first V-polarization synthesizer HV1; the first V-polarization receiver VR1 outputs a V-polarization signal, and the b-arm of the second double-pole double-throw switch SP2 is connected to port 2 of the first V-polarization synthesizer HV1; the two signals are combined by the first V-polarization synthesizer HV1 to output one 45° slant polarization signal; the second to sixth H-polarization receivers HR2 to HR6 and the second to sixth V-polarization receivers VR2 to VR6 each output one 45° slant polarization signal according to the same signal flow; the six 45° slant polarization signals are combined by the reconnaissance polarization synthesizer T2 and then output, thus realizing the reconnaissance of 45° slant polarization;

[0045] The two operating modes work simultaneously, achieving radar H polarization + reconnaissance 45° oblique polarization.

[0046] As a specific example, radar and reconnaissance operate simultaneously in seven other combinations under different polarizations, using the same superposition method.

[0047] The present invention will be further described in detail below with reference to specific examples and embodiments.

[0048] Example

[0049] This embodiment of a polarization reconfiguration dual-channel receiving module consists of 6 receiving components (HR1~HR6), 6 receiving components (VR1~VR6), a set of switching power divider network, 2 sets of amplitude and phase control chips, and 2 sets of downconversion components. The 6 H-polarized signals are respectively fed into HR1~HR6 for low-noise amplification and limiting before being output to the switching power divider network. The 6 V-polarized signals are respectively fed into VR1~VR6 for low-noise amplification and limiting before being output to the switching power divider network. The receiving components and downconversion components are of conventional design. After passing through the switching power divider network, the above signals are respectively formed into 2 signals. The 2 signals can operate independently and simultaneously in H-polarization, V-polarization, 45° oblique polarization, etc. The 2 signals with different polarizations are respectively passed through the two sets of amplitude and phase control chips. Amplitude and phase control are performed according to the amplitude and phase control requirements of radar and reconnaissance respectively, and then output to the two sets of downconversion components, which convert the signals to intermediate frequency outputs, thereby enabling simultaneous reception of radar and reconnaissance signals at different polarizations.

[0050] Figure 1 This is a schematic diagram of a polarization reconfiguration dual-channel receiving module according to the present invention. The module includes: receiving components (HR1-HR6), receiving components (VR1-VR6), a switching power divider network, an amplitude and phase control chip 1, an amplitude and phase control chip 2, a frequency converter 1, and a frequency converter 2. The switching power divider network consists of power dividers H1-H6, power dividers V1-V6, double-pole double-throw switches SP1-SP12, combiners H1-H6, combiners V1-V6, combiner T1, and combiner T2. The module operates as follows:

[0051] Six H-polarized signals enter receiving components HR1 to HR6, and six V-polarized signals enter receiving components VR1 to VR6. One H-polarized signal is limited and amplified with low noise by receiving component R1 before being output to power divider H1. Power divider H1 divides this signal into two equal paths, and the two signals enter double-pole double-throw switch SP1. One V-polarized signal is limited and amplified with low noise by receiving component VR1 before being output to power divider V1. Power divider V1 divides this signal into two equal paths, and the two signals enter double-pole double-throw switch SP2. According to the different polarization requirements during radar and reconnaissance operations, the switching arms a and b of double-pole double-throw switch SP1 and double-pole double-throw switch SP2 are connected to ports 1 and 2 of combiner H1 and combiner V1, respectively. The signal flow of the other four H-polarized signals and four V-polarized signals is similar. The six signals output from combiners H1 to H6 enter combiner T1, which combines them into a single signal and outputs it to amplitude and phase control chip 1. Based on the radar beam pointing and amplitude control requirements, phase and amplitude control are performed, and the signal is then output to frequency converter 1. This signal is mixed with local oscillator signal 1 to form an intermediate frequency (IF) signal. The six signals output from combiners V1 to V6 enter combiner T1, which combines them into a single signal and outputs it to amplitude and phase control chip 2. Based on the reconnaissance beam pointing and amplitude control requirements, phase and amplitude control are performed, and the signal is then output to frequency converter 2. This signal is mixed with local oscillator signal 2 to form an IF signal.

[0052] The following details the specific signal flow within the switching power divider network of the radar under several polarization modes, demonstrating that the signal flow remains consistent across different polarizations.

[0053] (1) H-polarization working mode

[0054] The receiving component HR1 outputs an H-polarization signal. The a-arm of the double-pole double-throw switch SP1 is connected to port 1 of the synthesizer H1. After passing through the synthesizer H1, one H-polarization signal is output. The other receiving components HR2 to HR6 each output one H-polarization signal according to the same signal flow. The six H-polarization signals are combined by the synthesizer T1 and then output, thus realizing radar H-polarization.

[0055] (2) V-polarization operating mode

[0056] The receiving component VR1 outputs a V-polarized signal. The a arm of the double-pole double-throw switch SP2 is connected to port 2 of the synthesizer H1. After passing through the synthesizer H1, one V-polarized signal is output. The other receiving components VR2 to VR6 each output one V-polarized signal according to the same signal flow. The six V-polarized signals are combined by the synthesizer T1 and then output, thus realizing V polarization.

[0057] (3) 45° oblique polarization operation mode

[0058] The receiving component HR1 outputs an H-polarized signal. Arm a of the double-pole double-throw switch SP1 is connected to port 1 of the synthesizer H1. The receiving component array VR1 outputs a V-polarized signal. Arm a of the double-pole double-throw switch SP2 is connected to port 2 of the synthesizer H1. These two signals are combined by the synthesizer H1 to output a 45° slant-polarized signal. Other receiving components HR2-HR6 and VR2-VR6 each output a 45° slant-polarized signal following the same signal flow. These six 45° slant-polarized signals are then combined by the synthesizer T1, thus achieving 45° slant polarization.

[0059] The following describes the specific internal signal flow of the switching power divider network when radar and reconnaissance are operating simultaneously under different polarizations. The signal flow of the switching power divider network is similar under other polarizations.

[0060] (1) Radar V-polarization + Reconnaissance V-polarization

[0061] The receiving component VR1 outputs a V-polarized signal. The a-arm of the double-pole double-throw switch SP2 is connected to port 2 of the synthesizer H1. After passing through the synthesizer H1, one V-polarized signal is output. The other receiving components VR2 to VR6 each output one V-polarized signal according to the same signal flow. The six V-polarized signals are combined by the synthesizer T1 and then output, thus realizing radar V polarization.

[0062] The receiving component VR1 outputs a V-polarized signal. The b-arm of the double-pole double-throw switch SP2 is connected to port 2 of the synthesizer V1. After passing through the synthesizer V1, one V-polarized signal is output. The other receiving components VR2 to VR6 each output one V-polarized signal according to the same signal flow. The six V-polarized signals are combined by the synthesizer T2 and then output, thus realizing the detection of V polarization.

[0063] (2) Radar H-polarization + reconnaissance 45° oblique polarization

[0064] The receiving component HR1 outputs an H-polarization signal. The a-arm of the double-pole double-throw switch SP1 is connected to port 1 of the synthesizer H1. After passing through the synthesizer H1, one H-polarization signal is output. The other receiving components HR2 to HR6 each output one H-polarization signal according to the same signal flow. The six H-polarization signals are combined by the synthesizer T1 and then output, thus realizing radar H-polarization.

[0065] Receiver HR1 outputs an H-polarized signal. The b-arm of double-pole double-throw switch SP1 is connected to port 1 of synthesizer V1. Receiver VR1 outputs a V-polarized signal. The b-arm of double-pole double-throw switch SP2 is connected to port 2 of synthesizer V1. After passing through synthesizer H1, one 45° polarized signal is output. The other receivers HR2-HR6 and VR2-VR6 form five 45° oblique polarized signals following the same signal flow. A total of six 45° oblique polarized signals are combined by synthesizer T2 and then output, thus achieving the detection of 45° oblique polarization.

[0066] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A polarization reconfiguration dual-channel receiving module, characterized in that, Includes receiving components, switching power divider network, first and second phase control chips, and first and second downconverter components; Six H-polarized signals and six V-polarized signals enter the receiving components, undergo low-noise amplification and limiting, and are then output to the switching power divider network. The switching power divider network forms two signals with different polarizations. These two signals can operate independently and simultaneously in H-polarization, V-polarization, and 45° skew polarization. The two signals pass through the first and second amplitude and phase control chips, respectively, and are then output to the first and second down-converter components, which convert the signals to intermediate frequency (IF) outputs, enabling simultaneous reception by the radar and reconnaissance systems at different polarizations. The receiving components include the first to sixth H-polarized receiving components (HR1 to HR6) and the first to sixth V-polarized receiving components (VR1 to VR6). The first H-polarized receiver (HR1), the first V-polarized receiver (VR1), the second H-polarized receiver (HR2), the second V-polarized receiver (VR2), the third H-polarized receiver (HR3), the third V-polarized receiver (VR3), the fourth H-polarized receiver (HR4), the fourth V-polarized receiver (VR4), the fifth H-polarized receiver (HR5), the fifth V-polarized receiver (VR5), the sixth H-polarized receiver (HR6), and the sixth V-polarized receiver (VR6) are arranged in sequence and are all connected to the switching power divider network; The switching power divider network includes the first to sixth H polarization power dividers (FH1 to FH6), the first to sixth V polarization power dividers (FV1 to FV6), the first to twelfth double-pole double-throw switches (SP1 to SP12), the first to sixth H polarization combiners (HH1 to HH6), the first to sixth V polarization combiners (HV1 to HV6), the radar polarization combiner (T1), and the reconnaissance polarization combiner (T2). The first to sixth H-polarized power dividers (FH1 to FH6) respectively receive the H-polarized signals from the first to sixth H-polarized receiving components (HR1 to HR6), and the first to sixth V-polarized power dividers (FV1 to FV6) respectively receive the V-polarized signals from the first to sixth V-polarized receiving components (VR1 to VR6). The first H-polarization power divider (FH1), the first V-polarization power divider (FV1), the second H-polarization power divider (FH2), the second V-polarization power divider (FV2), the third H-polarization power divider (FH3), the third V-polarization power divider (FV3), the fourth H-polarization power divider (FH4), the fourth V-polarization power divider (FV4), the fifth H-polarization power divider (FH5), the fifth V-polarization power divider (FV5), the sixth H-polarization power divider (FH6), and the sixth V-polarization power divider (FV6) each divide the received signal into two equal paths. Each pair of paths is sequentially connected to the two fixed terminals of the first to twelfth double-pole double-throw switches (SP1 to SP12). The switch arms a and b of the first to twelfth double-pole double-throw switches (SP1 to SP12) are respectively connected to the first H-polarization combiner (HH1), the first V-polarization combiner (HV1), and the second H-polarization combiner (FV2). Ports 1 and 2 of the following synthesizers are connected: HH2, HV2, HH3, HV3, HH4, VV4, HH5, VV5, HH6, and VV6. Specifically, terminal a of the first double-pole double-throw switch (SP1) is connected to port 1 of the first H-polarized synthesizer (HH1), and terminal b of the first double-pole double-throw switch (SP1) is connected to port 2 of the first H-polarized synthesizer (HH1). Terminal a of the second double-pole double-throw switch (SP2) is connected to port 1 of the first V-polarized synthesizer (HV1), and terminal b of the second double-pole double-throw switch (SP2) is connected to port 2 of the first V-polarized synthesizer (HV1). The six signals output from the first to the sixth H polarization combiners (HH1 to HH6) are all input to the radar polarization combiner (T1), and combined into one signal for output to the first phase control chip; the six signals output from the first to the sixth V polarization combiners (HV1 to HV6) are all input to the reconnaissance polarization combiner (T2), and combined into one signal for output to the second phase control chip.

2. The polarization reconfiguration dual-channel receiving module according to claim 1, characterized in that, After the signal is distributed by the switching power divider network, a radar signal and a reconnaissance signal are output. The radar signal is output to the first phase control chip, and after being mixed with the local oscillator 1 by the first frequency conversion component, the radar signal is output. The reconnaissance signal is output to the second phase control chip, and after being mixed with the local oscillator 2 by the second frequency conversion component, the reconnaissance signal is output.

3. The polarization reconfiguration dual-channel receiving module according to claim 1, characterized in that, The specific signal flow within the switching power divider network of the radar under various polarization modes is as follows: (1) H-polarization working mode The first H-polarization receiver (HR1) outputs an H-polarization signal. The a-arm of the first double-pole double-throw switch (SP1) is connected to port 1 of the first H-polarization combiner (HH1). After passing through the first H-polarization combiner (HH1), one H-polarization signal is output. The second to sixth H-polarization receivers (HR2 to HR6) each output one H-polarization signal according to the same signal flow. The six H-polarization signals are combined by the radar polarization combiner (T1) and then output, thus realizing radar H-polarization. (2) V-polarization working mode The first V-polarization receiver (VR1) outputs a V-polarization signal. The a-arm of the second double-pole double-throw switch (SP2) is connected to port 2 of the first H-polarization synthesizer (HH1). After passing through the first H-polarization synthesizer (HH1), one V-polarization signal is output. The second to sixth V-polarization receivers (VR2 to VR6) each output one V-polarization signal according to the same signal flow. The six V-polarization signals are combined by the radar polarization synthesizer (T1) and then output, thus realizing radar V-polarization. (3) 45° oblique polarization working mode The first H-polarization receiver (HR1) outputs an H-polarization signal, and the a-arm of the first double-pole double-throw switch (SP1) is connected to port 1 of the first H-polarization synthesizer (HH1). The first V-polarization receiver (VR1) outputs a V-polarization signal, and the a-arm of the second double-pole double-throw switch (SP2) is connected to port 2 of the synthesizer H1. The two signals are combined by the first H-polarization synthesizer (HH1) to output a 45° slant polarization signal. The second to sixth H-polarization receivers (HR2 to HR6) and the second to sixth V-polarization receivers (VR2 to VR6) each output a 45° slant polarization signal according to the same signal flow. The six 45° slant polarization signals are combined by the radar polarization synthesizer (T1) and then output, thus realizing the radar 45° slant polarization.

4. The polarization reconfiguration dual-channel receiving module according to claim 1, characterized in that, The specific signal flow within the switching power divider network under various polarization modes was investigated, as follows: (1) H-polarization working mode The first H-polarization receiver (HR1) outputs an H-polarization signal. The b-arm of the first double-pole double-throw switch (SP1) is connected to port 1 of the first V-polarization synthesizer (HV1). After passing through the first V-polarization synthesizer (HV1), one H-polarization signal is output. The second to sixth H-polarization receivers (HR2 to HR6) each output one H-polarization signal according to the same signal flow. The six H-polarization signals are synthesized by the detection polarization synthesizer (T2) and then output, thus realizing the detection of H-polarization. (2) V-polarization working mode The first V-polarization receiver (VR1) outputs a V-polarization signal. The b-arm of the second double-pole double-throw switch (SP2) is connected to port 2 of the first V-polarization synthesizer (HV1). After passing through the first V-polarization synthesizer (HV1), one V-polarization signal is output. The second to sixth V-polarization receivers (VR2 to VR6) each output one V-polarization signal according to the same signal flow. The six V-polarization signals are synthesized by the detection polarization synthesizer (T2) and then output, thus realizing the detection of V-polarization. (3) 45° oblique polarization working mode The first H-polarization receiver (HR1) outputs an H-polarization signal, and the b-arm of the first double-pole double-throw switch (SP1) is connected to port 1 of the first V-polarization synthesizer (HV1). The first V-polarization receiver (VR1) outputs a V-polarization signal, and the b-arm of the second double-pole double-throw switch (SP2) is connected to port 2 of the first V-polarization synthesizer (HV1). The two signals are combined by the first V-polarization synthesizer (HV1) to output a 45° slant polarization signal. The second to sixth H-polarization receivers (HR2 to HR6) and the second to sixth V-polarization receivers (VR2 to VR6) each output a 45° slant polarization signal according to the same signal flow. The six 45° slant polarization signals are combined by the reconnaissance polarization synthesizer (T2) and then output, thus realizing the reconnaissance of 45° slant polarization.

5. The polarization reconfiguration dual-channel receiving module according to claim 1, characterized in that, The specific signal flow within the switching power divider network when radar and reconnaissance operate simultaneously under different polarizations is as follows: When radar and reconnaissance systems operate simultaneously under different polarizations, the switching power distribution network superimposes the polarizations of the radar and reconnaissance systems, and outputs their respective signals.

6. The polarization reconfiguration dual-channel receiving module according to claim 5, characterized in that, The radar V-polarization + reconnaissance V-polarization operating mode is a superposition of the radar V-polarization operating mode and the reconnaissance V-polarization operating mode, as detailed below: The first V-polarization receiver (VR1) outputs a V-polarization signal. The a-arm of the second double-pole double-throw switch (SP2) is connected to port 2 of the first H-polarization synthesizer (HH1). After passing through the first H-polarization synthesizer (HH1), one V-polarization signal is output. The second to sixth V-polarization receivers (VR2 to VR6) each output one V-polarization signal according to the same signal flow. The six V-polarization signals are combined by the radar polarization synthesizer (T1) and then output, thus realizing radar V-polarization. The first V-polarization receiver (VR1) outputs a V-polarization signal. The b-arm of the second double-pole double-throw switch (SP2) is connected to port 2 of the first V-polarization synthesizer (HV1). After passing through the first V-polarization synthesizer (HV1), one V-polarization signal is output. The second to sixth V-polarization receivers (VR2 to VR6) each output one V-polarization signal according to the same signal flow. The six V-polarization signals are synthesized by the detection polarization synthesizer (T2) and then output, thus realizing the detection of V-polarization. The two operating modes work simultaneously, achieving a radar V-polarization + reconnaissance V-polarization working mode.

7. The polarization reconfiguration dual-channel receiving module according to claim 5, characterized in that, The radar H-polarization + reconnaissance 45° oblique polarization operating mode is a superposition of the radar H-polarization operating mode and the reconnaissance 45° oblique polarization operating mode, as detailed below: The first H-polarization receiver (HR1) outputs an H-polarization signal. The a-arm of the first double-pole double-throw switch (SP1) is connected to port 1 of the first H-polarization combiner (HH1). After passing through the first H-polarization combiner (HH1), one H-polarization signal is output. The second to sixth H-polarization receivers (HR2 to HR6) each output one H-polarization signal according to the same signal flow. The six H-polarization signals are combined by the radar polarization combiner (T1) and then output, thus realizing radar H-polarization. The first H-polarization receiver (HR1) outputs an H-polarization signal, and the b-arm of the first double-pole double-throw switch (SP1) is connected to port 1 of the first V-polarization synthesizer (HV1). The first V-polarization receiver (VR1) outputs a V-polarization signal, and the b-arm of the second double-pole double-throw switch (SP2) is connected to port 2 of the first V-polarization synthesizer (HV1). The two signals are combined by the first V-polarization synthesizer (HV1) to output a 45° slant polarization signal. The second to sixth H-polarization receivers (HR2 to HR6) and the second to sixth V-polarization receivers (VR2 to VR6) each output a 45° slant polarization signal according to the same signal flow. The six 45° slant polarization signals are combined by the reconnaissance polarization synthesizer (T2) and then output, thus realizing the reconnaissance of 45° slant polarization. The two operating modes work simultaneously, achieving radar H polarization + reconnaissance 45° oblique polarization.

8. The polarization reconfiguration dual-channel receiving module according to claim 6 or 7, characterized in that, The radar and reconnaissance systems operate simultaneously under different polarizations, using the same superposition method.

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