A transceiver component based on a switched power divider network with miniaturization and reusable upper and lower channels

Abstract

The present invention discloses a transceiver component based on a switched power splitter network with miniaturized upper and lower channels that can be multiplexed, which includes an antenna, a first channel, a second channel, and a power amplification link; both the first channel and the second channel are composed of a circulator, a two-stage cascaded relay switch, a filter, and a receiving channel; when the two-stage cascaded relay is in a normal working state, for the first channel or the second channel, when the antenna is in a transmitting state, the excitation signal enters the drive amplifier through the power combiner for amplification, and the amplified excitation signal is output to the high-power power splitter switch network through the final amplifier, and then output to the circulator, and then enters the filter through the two-stage cascaded relay switch for filtering, and the filtered excitation signal is transmitted through the antenna; when the antenna is in a receiving state, the signal received by the antenna passes through the filter, the two-stage cascaded relay, and the circulator in sequence, and finally is output to the receiving channel. The present invention multiplexes the transceiver channels, improving the system redundancy.

Description

Technical Field

[0001] The present invention relates to the technical field of airborne integrated avionics equipment, and particularly to a transceiver component based on a switched power dividing network with miniaturization and reusable upper and lower channels. Background Art

[0002] At present, in the transceiver components in the technical field of airborne integrated avionics equipment, they are multi-mode transceivers. Their functions and signal formats generally include air traffic control, ADS-B, DME, TACAN, data link, etc. Generally, the transceiver is divided into two independent upper and lower channels for transceiver. The upper and lower channels can be controlled separately, or the upper and lower channels can transmit simultaneously.

[0003] The current transceiver components generally use two independent channels for transmission and reception. When transmitting, according to the external control signal, the upper or lower antenna is selected for transmission. When receiving, the upper and lower antennas receive independently.

[0004] In the current technology, the upper and lower channels are amplified separately. The transmitting channel can transmit separately according to the control or the upper and lower channels can transmit simultaneously. When transmitting simultaneously, the required output power can be 3 dB less. When the upper and lower channels transmit simultaneously, the power consumption of the transmitting channel is high. When the power is backed off, the efficiency decreases and the heat dissipation increases.

[0005] Based on the current technology, the channels of the transceiver component cannot be reused. When various faults occur in any channel, its signal cannot be transmitted and received, and various functions will be severely affected. Summary of the Invention

[0006] In view of this, the present invention provides a transceiver component based on a switched power dividing network with miniaturization and reusable upper and lower channels, which can reuse the dual-channel transceiver channels, save the transmitting channel, improve the power amplifier efficiency, and improve the system redundancy.

[0007] The present invention discloses a transceiver component based on a switched power dividing network with miniaturization and reusable upper and lower channels, which includes an antenna, a first channel, a second channel, and a power amplification link. The power amplification link is respectively connected to different antennas through the first channel and the second channel; both the first channel and the second channel are composed of a circulator, a two-stage cascaded relay switch, a filter, and a receiving channel; the circulator, the two-stage cascaded relay switch, and the filter are connected in sequence, and the circulator is connected to the receiving channel;

[0008] The power amplification link is composed of a power combiner, a driver amplifier, a final-stage amplifier, and a high-power power dividing switch network connected in sequence; the high-power power dividing switch network is respectively connected to the circulators in the first channel and the second channel;

[0009] When the two-stage cascaded relay is in the normal working state, for the first channel or the second channel, when the antenna is in the transmitting state, the excitation signal enters the drive amplifier through the power combiner for amplification. The amplified excitation signal is output to the high-power power divider switch network through the final amplifier, and then output to the circulator. After passing through the two-stage cascaded relay switch, it enters the filter for filtering, and the filtered excitation signal is transmitted through the antenna; when the antenna is in the receiving state, the signal received by the antenna passes through the filter, the two-stage cascaded relay and the circulator in sequence, and finally is output to the receiving channel.

[0010] Further, the first-stage relay in the two-stage cascaded relay is connected to the filter, and the second-stage relay is connected to the circulator;

[0011] When the two-stage cascaded relays in the first channel and the second channel are in the power-off state, the connection between the filter and the circulator in the first channel and the second channel is disconnected;

[0012] When the antenna is in the transmitting state, the first-stage relay in the second channel is connected to the second-stage relay in the first channel, and the first-stage relay in the first channel is connected to the second-stage relay in the second channel;

[0013] When the antenna is in the power-off and receiving states simultaneously, the second-stage relay in the second channel is connected to the first-stage relay in the first channel, and the second-stage relay in the first channel is connected to the first-stage relay in the second channel.

[0014] Further, when the two-stage cascaded relays in the first channel and the second channel are in the normal working state, the first channel and the second channel perform independent transmission and reception respectively, that is, there is no communication between the first channel and the second channel.

[0015] Further, the high-power power divider switch network is composed of a one-to-three switch, a power distributor, and two one-to-two switches; the signal output by the final amplifier enters from the one-to-three switch, and the signal can be output to the circulators in the first channel and the second channel respectively through the two one-to-two switches, or the signal can be output to the circulators in the first channel and the second channel respectively from the two one-to-two switches after passing through the power distributor.

[0016] Further, the drive amplifier determines the number of power amplifier tubes of the drive amplifier according to the magnitude of the input power and the drive power required by the final amplifier.

[0017] Further, an isolator is added to the output of the drive amplifier to make the drive amplifier match with the final amplifier.

[0018] Further, the final amplifier selects a matching power amplifier tube for amplification and synthesis output according to the output power of its port.

[0019] Furthermore, the circulator is used to protect the final amplifier to reduce the impact of external impedance changes on the transmitter.

[0020] Furthermore, the filter is used to suppress the harmonics and clutter of the transmission spectrum to meet the index requirements of the transmitter for spectral characteristics.

[0021] Due to the adoption of the above technical solutions, the present invention has the following advantages:

[0022] 1. This solution can achieve the multiplexing of the antenna signal channel by adding two - stage relay switches.

[0023] 2. This solution can save one transmission channel, reduce heat dissipation, and improve the power - amplifier efficiency.

[0024] 3. This solution can improve the redundancy of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments recorded in the embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0026] Figure 1 It is the overall block diagram of a transceiver component with a miniaturized up - and - down channel multiplexing based on a switched power - dividing network according to an embodiment of the present invention;

[0027] Figure 2 It is the block diagram of a high - power power - dividing switch network according to an embodiment of the present invention;

[0028] Figure 3 It is the principle block diagram of a high - power power - dividing switch network according to an embodiment of the present invention;

[0029] Figure 4 It is the schematic diagram of a two - stage cascaded relay switch according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The present invention will be further described in conjunction with the drawings and embodiments. The described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art shall fall within the scope of protection of the embodiments of the present invention.

[0031] See Figure 1, embodiments of the present invention provide a transceiver component based on a switched power divider network with miniaturized upper and lower channels that can be multiplexed, which includes an antenna, a first channel, a second channel, and a power amplification link. The power amplification link is connected to different antennas through the first channel and the second channel respectively; both the first channel and the second channel are composed of a circulator, a two-stage cascaded relay switch, a filter, and a receiving channel; the circulator, the two-stage cascaded relay switch, and the filter are connected in sequence, and the circulator is connected to the receiving channel;

[0032] The power amplification link is composed of a power combiner, a driver amplifier, a final amplifier, and a high-power power divider switch network connected in sequence; the high-power power divider switch network is connected to the circulators in the first channel and the second channel respectively;

[0033] When the two-stage cascaded relay is in the normal working state, for the first channel or the second channel, when the antenna is in the transmitting state, the excitation signal enters the driver amplifier through the power combiner for amplification. The amplified excitation signal is output to the high-power power divider switch network through the final amplifier, and then output to the circulator. After that, it enters the filter through the two-stage cascaded relay switch for filtering, and the filtered excitation signal is transmitted through the antenna; when the antenna is in the receiving state, the signal received by the antenna passes through the filter, the two-stage cascaded relay, and the circulator in sequence, and finally is output to the receiving channel.

[0034] In one embodiment, the first-stage relay in the two-stage cascaded relay is connected to the filter, and the second-stage relay is connected to the circulator;

[0035] When the two-stage cascaded relays in the first channel and the second channel are in the power-off state, the connection between the filter and the circulator in the first channel and the second channel is disconnected;

[0036] When the antenna is in the transmitting state, the first-stage relay in the second channel is connected to the second-stage relay in the first channel, and the first-stage relay in the first channel is connected to the second-stage relay in the second channel;

[0037] When the antenna is in the power-off and receiving states simultaneously, the second-stage relay in the second channel is connected to the first-stage relay in the first channel, and the second-stage relay in the first channel is connected to the first-stage relay in the second channel.

[0038] Therefore, the present invention can simultaneously transmit and receive signals through the first channel and the second channel, the transceiver component can be multiplexed, and when some components in any channel fail, normal signal transmission and reception can still be carried out through other channels without being affected.

[0039] Figure 1 and Figure 4Among them, the relay switches (sw1, sw2, sw3, and sw4) are in the solid line state by default when powered on, that is, the circulator to the filter is in the conducting state; the relay switches have the power-off holding function. When the relay is in the power-off state, the antenna port to the XT port and the XR port are in the conducting state, and the signals received by the damaged channel that cannot be powered on can be sent to another channel for reception; during transmission, the XR port of the sw1 relay switch can be switched to the XT port of the sw4 relay switch and transmitted through the filter; or, the XR port of the sw3 relay switch can be switched to the XT port of the sw2 relay switch and transmitted through the filter.

[0040] In one embodiment, when the two-stage cascaded relays in the first channel and the second channel are in the normal working state, the first channel and the second channel perform independent transmission and reception respectively, that is, there is no communication between the first channel and the second channel, which is equivalent to having no relay switch, realizing dual-channel independent transceiver, but any damaged channel cannot be reused.

[0041] In one embodiment, the high-power power divider switch network selects the output mode according to different modes, and can output the upper and lower channels for transmission separately, or perform power division for simultaneous upper and lower transmission. Only one transmission channel is required for the transmission channel, saving one transmission channel, and the amplifier does not need to work in a back-off mode, improving the power amplifier efficiency. When performing a single switch selection, the insertion loss of the high-power power divider switch network is less than or equal to 1 dB, and when performing power division, the insertion loss of the high-power power divider switch network is less than or equal to 4 dB.

[0042] Specifically, refer to Figure 2 , the high-power power divider switch network consists of a one-to-three switch, a power divider, and two one-to-two switches; the signal output by the final amplifier is input from the one-to-three switch, and can be output to the circulators in the first channel and the second channel respectively through the two one-to-two switches, or can be output to the circulators in the first channel and the second channel respectively through the two one-to-two switches after passing through the power divider.

[0043] Refer to Figure 3, the power divider can be a Wilkinson power divider. The one - to - three switch and the two - to - one switch are both composed of PIN diodes. CTR1 outputs a voltage of - 40V, causing the series diodes in the branch to conduct and the diodes connected to the ground in parallel to be in the reverse cut - off state. The RF signal goes from the input to the high - power output signal 1. At the same time, CTR2 and CTR3 of the driver output a voltage of + 5V, the series diodes are cut off, and the diodes connected to the ground in parallel conduct, the RF signal is cut off, and the lower antenna branch is turned off; CTR3 outputs a voltage of - 40V, causing the series diodes in the branch to conduct and the diodes connected to the ground in parallel to be in the reverse cut - off state. The RF signal goes from the input to the high - power output signal 2. At the same time, CTR1 and CTR2 output a voltage of + 5V, the series diodes are cut off, and the diodes connected to the ground in parallel conduct, the RF signal is cut off, and the upper antenna branch is turned off; CTR2 outputs a voltage of - 40V, causing the series diodes in the branch to conduct and the diodes connected to the ground in parallel to be in the reverse cut - off state. The RF signal is output from the input port to the path of the power divider. The power divider divides the signal into two paths and outputs the high - power output signal 1 and the high - power output signal 2 simultaneously. At the same time, CTR1 and CTR3 of the driver output a voltage of + 5V, the series diodes are cut off, and the diodes connected to the ground in parallel conduct, the RF signal is cut off.

[0044] In one embodiment, the drive amplifier determines the number of power amplifier tubes of the drive amplifier according to the magnitude of the input power and the drive power required by the final - stage amplifier.

[0045] In one embodiment, an isolator is added to the output of the drive amplifier to match the drive amplifier with the final - stage amplifier.

[0046] In one embodiment, the final - stage amplifier selects a matching power amplifier tube for amplification and synthesis output according to the output power of its port. In theory, it can perform N - way amplifier amplification and then power synthesis output according to the magnitude of the output power.

[0047] In one embodiment, the circulator is used to protect the final - stage amplifier to reduce the influence of external impedance changes on the transmitter.

[0048] In one embodiment, the filter is used to suppress the harmonics and clutter of the emission spectrum to meet the index requirements of the transmitter for spectrum characteristics.

[0049] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications or equivalent replacements can still be made to the specific implementation manners of the present invention. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention shall be covered by the protection scope of the claims of the present invention.

Claims

1. A transceiver component based on a switched power divider network with miniaturization and reusable upper and lower channels, characterized in that It includes an antenna, a first channel, a second channel and a power amplification link. The power amplification link is connected to different antennas through the first channel and the second channel respectively. Both the first channel and the second channel are composed of a circulator, a two-stage cascaded relay switch, a filter and a receiving channel. The circulator, the two-stage cascaded relay switch and the filter are connected in sequence, and the circulator is connected to the receiving channel. The power amplification link consists of a power combiner, a driver amplifier, a final amplifier and a high-power power distribution switch network connected in sequence. The high-power power distribution switch network is connected to the circulators in the first channel and the second channel respectively. When the two-stage cascaded relay is in the normal working state, for the first channel or the second channel, when the antenna is in the transmitting state, the excitation signal enters the driver amplifier through the power combiner for amplification. The amplified excitation signal is output to the high-power power distribution switch network through the final amplifier, and then output to the circulator. After that, it enters the filter through the two-stage cascaded relay switch for filtering, and the filtered excitation signal is transmitted through the antenna. When the antenna is in the receiving state, the signal received by the antenna passes through the filter, the two-stage cascaded relay and the circulator in sequence, and finally is output to the receiving channel. The first-stage relay in the two-stage cascaded relay is connected to the filter, and the second-stage relay is connected to the circulator. When the two-stage cascaded relays in the first channel and the second channel are in the power-off state, the connection between the filter and the circulator in the first channel and the second channel is disconnected. When the antenna is in the transmitting state, the first-stage relay in the second channel is connected to the second-stage relay in the first channel, and the first-stage relay in the first channel is connected to the second-stage relay in the second channel. When the antenna is in the power-off and receiving state at the same time, the second-stage relay in the second channel is connected to the first-stage relay in the first channel, and the second-stage relay in the first channel is connected to the first-stage relay in the second channel. When the two-stage cascaded relays in the first channel and the second channel are in the normal working state, the first channel and the second channel perform independent transmission and reception respectively, that is, there is no communication between the first channel and the second channel.

2. The transceiver component based on a switched power divider network with miniaturized upper and lower channels that can be multiplexed according to claim 1, wherein The high-power power distribution switch network consists of a one-to-three switch, a power divider and two one-to-two switches. The signal output by the final amplifier enters from the one-to-three switch and is directly output to the circulators in the first channel and the second channel through the two one-to-two switches respectively. Or, after passing through the power divider, the signal is output to the circulators in the first channel and the second channel through the two one-to-two switches respectively.

3. The transceiver component with miniaturized upper and lower channels that can be multiplexed based on a switched power splitter network according to claim 1, wherein The driver amplifier determines the number of power amplifier tubes of the driver amplifier according to the input power and the required drive power of the final amplifier.

4. The transceiver component with miniaturized upper and lower channels that can be multiplexed based on a switched power divider network according to claim 1, wherein An isolator is added to the output of the driver amplifier to make the driver amplifier match the final amplifier.

5. The transceiver component based on a switched power splitter network with miniaturized upper and lower channels that can be multiplexed according to claim 1, characterized in that, The final amplifier selects a matching power amplifier tube for amplification and synthesis output according to the output power of the component port.

6. The transceiver component based on a switched power divider network with miniaturized upper and lower channels that can be multiplexed according to claim 1, characterized in that, The circulator is used to protect the final amplifier to reduce the influence of external impedance change on the transmitter.

7. The transceiver component with miniaturized upper and lower channels that can be multiplexed based on a switched power divider network according to claim 1, characterized in that, The filter is used to suppress the harmonics and clutter of the transmitting spectrum to meet the index requirements of the transmitter for spectrum characteristics.

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