Switch power division network-based miniaturized upper and lower channel-reusable transceiving assembly

Abstract

The invention discloses a switch power division network-based miniaturized upper and lower channel-reusable transceiving assembly, which comprises an antenna, a first channel, a second channel and a power amplification link, each of the first channel and the second channel is composed of a circulator, a two-stage cascade relay switch, a filter and a receiving channel; when the two-stage cascade relay is in a normal working state, for a first channel or a second channel, when an antenna is in a transmitting state, an excitation signal enters a driving amplifier through a power combiner to be amplified, and the amplified excitation signal is output to a high-power power dividing switch network through a final-stage amplifier and then is output to a circulator; the excitation signal passes through a two-stage cascade relay switch and then enters a filter for filtering, and the filtered excitation signal is transmitted through an antenna; when the antenna is in a receiving state, a signal received by the antenna sequentially passes through the filter, the two-stage cascade relay and the circulator and is finally output to a receiving channel. According to the invention, the transceiving channels are multiplexed, so that the system redundancy is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of airborne integrated avionics equipment, and in particular to a miniaturized upper and lower channel multiplexed transceiver assembly based on a switch power division network. Background Art

[0002] At present, the transceiver components in the field of airborne integrated avionics equipment technology belong to multi-mode transceiver. Its functions and signal formats generally include air traffic control, ADS-B, DME, TACAN, data link, etc. Generally, the transceiver is divided into two independent channels, upper and lower, which can be controlled separately or transmitted at the same time.

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

[0004] With current technology, the upper and lower channels are amplified separately, and the transmitting channel can be transmitted separately or simultaneously according to control. The output power required for simultaneous transmission can be 3dB less. When the upper and lower channels are transmitted simultaneously, the power consumption of the transmitting channel is high. When the power is reduced, the efficiency is reduced and the heat consumption increases.

[0005] Based on current technology, the transceiver component channels cannot be reused. When any channel encounters various faults, it cannot transmit and receive its signals, and various functions will be seriously affected. Summary of the invention

[0006] In view of this, the present invention provides a miniaturized upper and lower channel reusable transceiver component based on a switch power division network, which can multiplex dual-channel transceiver channels, save transmission channels, improve power amplifier efficiency, and improve system redundancy.

[0007] The present invention discloses a miniaturized upper and lower channel reusable transceiver component based on a switch power division network, which comprises an antenna, a first channel, a second channel and a power amplification link, wherein the power amplification link is connected to different antennas through the first channel and the second channel respectively; the first channel and the second channel are both composed of a circulator, a two-stage cascade relay switch, a filter and a receiving channel; the circulator, the two-stage cascade 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 synthesizer, a driving amplifier, a final amplifier and a high-power power division switch network connected in sequence; the high-power power division switch network is connected to the circulators in the first channel and the second channel respectively;

[0009] When the two-stage cascade relay is in normal working state, for the first channel or the second channel, when the antenna is in the transmitting state, the excitation signal passes through the power synthesizer and enters the driving amplifier for amplification. The amplified excitation signal is output to the high-power power division switch network through the final amplifier, and then output to the circulator. After that, it enters the filter for filtering after passing through the two-stage cascade relay switch. 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 cascade relay and the circulator in sequence, and is finally output to the receiving channel.

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

[0011] When the two-stage cascade relays in the first channel and the second channel are in a de-energized state, the filters and circulators in the first channel and the second channel are 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 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.

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

[0015] Furthermore, the high-power power division switch network consists of a one-to-three switch, a power divider, and two two-to-one 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 two-to-one switches, or can be output from the two two-to-one switches to the circulators in the first channel and the second channel respectively after passing through the power divider.

[0016] Furthermore, the driving amplifier determines the number of power amplifier tube stages of the driving amplifier according to the magnitude of the input power and the driving power required by the final amplifier.

[0017] Furthermore, an isolator is added to the output of the driver amplifier to match the driver amplifier with the final amplifier.

[0018] Furthermore, the final amplifier selects a matching power amplifier tube to amplify and synthesize the 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 harmonics and clutter in the transmission spectrum to meet the transmitter's requirements for spectrum characteristics.

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

[0022] 1. This solution can achieve antenna signal channel multiplexing by adding a two-stage relay switch.

[0023] 2. This solution can save one transmission channel, reduce heat consumption and improve 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 drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0026] Figure 1 It is an overall block diagram of a transceiver component with multiplexable upper and lower channels based on a miniaturized switch power division network according to an embodiment of the present invention;

[0027] Figure 2 A block diagram of a high-power power splitter network according to an embodiment of the present invention;

[0028] Figure 3 A block diagram of a high-power power splitter switch network according to an embodiment of the present invention;

[0029] Figure 4 Schematic diagram of a two-stage cascade relay switch according to an embodiment of the present invention. DETAILED DESCRIPTION

[0030] The present invention is further described in conjunction with the accompanying drawings and embodiments, and the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field should fall within the scope of protection of the embodiments of the present invention.

[0031] See also Figure 1The present invention provides an embodiment of a miniaturized upper and lower channel multiplexed transceiver component based on a switch power division network, which includes an antenna, a first channel, a second channel and a power amplification link, wherein the power amplification link is connected to different antennas through the first channel and the second channel respectively; the first channel and the second channel are both composed of a circulator, a two-stage cascade relay switch, a filter and a receiving channel; the circulator, the two-stage cascade 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 synthesizer, a driving amplifier, a final amplifier and a high-power power division switch network connected in sequence; the high-power power division switch network is connected to the circulators in the first channel and the second channel respectively;

[0033] When the two-stage cascade relay is in normal working state, for the first channel or the second channel, when the antenna is in the transmitting state, the excitation signal passes through the power synthesizer and enters the driving amplifier for amplification. The amplified excitation signal is output to the high-power power division switch network through the final amplifier, and then output to the circulator. After that, it enters the filter for filtering after passing through the two-stage cascade relay switch. 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 cascade relay and the circulator in sequence, and is finally output to the receiving channel.

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

[0035] When the two-stage cascade relays in the first channel and the second channel are in a de-energized state, the filters and circulators in the first channel and the second channel are 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 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.

[0038] Therefore, the present invention can transmit and receive signals through the first channel and the second channel at the same time, the transceiver components can be reused, and when some components in any channel fail, normal signal transmission and reception can still be performed through other channels without being affected.

[0039] Figure 1 and Figure 4In the embodiment, the default state of the relay switches (sw1, sw2, sw3 and sw4) when powered on is a solid line state, that is, the circulator to the filter is in the on state; the relay switch has a power-off hold function. When the relay is in the power-off state, the antenna port to the XT port and the XR port are in the on state, and the signal received by the damaged channel that cannot be powered on can be sent to another channel for reception; when transmitting, it can be switched from the XR port of the sw1 relay switch to the XT port of the sw4 relay switch, and transmitted through the filter; or, it can be switched from the XR port of the sw3 relay switch to the XT port of the sw2 relay switch, and transmitted through the filter.

[0040] In one embodiment, when the two-stage cascade relays in the first channel and the second channel are in normal working state, the first channel and the second channel respectively transmit and receive independently, that is, there is no communication between the first channel and the second channel, which is equivalent to having no relay switch, so that the two channels can independently transmit and receive, but if any channel is damaged, it cannot be reused.

[0041] In one embodiment, the high-power power splitter switch network selects the output mode according to different modes, and can output the upper and lower channels separately, or can split the upper and lower channels to transmit simultaneously. Only one transmission channel is needed, which saves one transmission channel, and the amplifier does not need to fall back to work, thereby improving the efficiency of the power amplifier. When the switch selection is performed separately, the insertion loss of the high-power power splitter switch network is less than or equal to 1dB, and when power splitting is performed, the insertion loss of the high-power power splitter switch network is less than or equal to 4dB.

[0042] Specifically, see Figure 2 The high-power power division switch network consists of a one-to-three switch, a power divider, and two two-to-one 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 through the two two-to-one switches respectively, or can be output from the two two-to-one switches to the circulators in the first channel and the second channel respectively after the power divider.

[0043] See also Figure 3The power divider can be a Wilkinson power divider. Both the one-to-three switch and the two-to-one switch are composed of PIN diodes. CTR1 outputs a -40V voltage, so that the series diode in the branch is turned on and the diode connected in parallel to the ground is in a reverse cut-off state. The RF signal is from input to high-power output signal 1. At the same time, the drivers CTR2 and CTR3 output a +5V voltage, so that the series diode is turned off and the diode connected in parallel to the ground is turned on. The RF signal is cut off and the lower antenna branch is turned off; CTR3 outputs a -40V voltage, so that the series diode in the branch is turned on and the diode connected in parallel to the ground is in a reverse cut-off state. The RF signal is from input to high-power output signal 2. At the same time, CTR1 and CTR2 The output +5V voltage cuts off the series diode and conducts through the diode connected in parallel to the ground, the RF signal is cut off, and the upper antenna branch is shut down; CTR2 outputs a -40V voltage, so that the series diode in the branch conducts through and the diode connected in parallel to the ground is in a reverse cutoff state, and the RF signal is output from the input port to the power divider. The power divider divides the signal into two paths and outputs high-power output signal 1 and high-power output signal 2 simultaneously. At the same time, the drivers CTR1 and CTR3 output a +5V voltage cuts off the series diode and conducts through the diode connected in parallel to the ground, and the RF signal is cut off.

[0044] In one embodiment, the driver amplifier determines the number of power amplifier stages of the driver amplifier according to the magnitude of the input power and the driving power required by the final amplifier.

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

[0046] In one embodiment, the final amplifier selects a matching power amplifier tube for amplification and synthesis output according to the output power of its port. Theoretically, N amplifiers can be used for amplification according to the output power and then for power synthesis and output.

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

[0048] In one embodiment, the filter is used to suppress harmonics and clutter in the transmission spectrum to meet the transmitter's requirements 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 rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A miniaturized upper and lower channel multiplexed transceiver component based on a switch power division network, characterized in that: It includes an antenna, a first channel, a second channel and a power amplification link, wherein the power amplification link is connected to different antennas through the first channel and the second channel respectively; the first channel and the second channel are both composed of a circulator, a two-stage cascade relay switch, a filter and a receiving channel; the circulator, the two-stage cascade relay switch and the filter are connected in sequence, and the circulator is connected to the receiving channel; The power amplification link is composed of a power synthesizer, a driving amplifier, a final amplifier and a high-power power division switch network connected in sequence; the high-power power division switch network is connected to the circulators in the first channel and the second channel respectively; When the two-stage cascade relay is in normal working state, for the first channel or the second channel, when the antenna is in the transmitting state, the excitation signal passes through the power synthesizer and enters the driving amplifier for amplification. The amplified excitation signal is output to the high-power power division switch network through the final amplifier, and then output to the circulator. After that, it enters the filter for filtering after passing through the two-stage cascade relay switch. 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 cascade relay and the circulator in sequence, and is finally output to the receiving channel.

2. The miniaturized upper and lower channel multiplexed transceiver assembly based on the switch power division network according to claim 1 is characterized in that: The first stage relay of the two-stage cascade relay is connected to the filter, and the second stage relay is connected to the circulator; When the two-stage cascade relays in the first channel and the second channel are in a de-energized state, the filters and circulators in the first channel and the second channel are 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 states 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.

3. The miniaturized upper and lower channel multiplexed transceiver assembly based on the switch power division network according to claim 1 is characterized in that: When the two-stage cascade relays in the first channel and the second channel are in a normal working state, the first channel and the second channel perform independent transmission and reception respectively, that is, no communication is performed between the first channel and the second channel.

4. The miniaturized upper and lower channel multiplexed transceiver assembly based on the switch power division network according to claim 1 is characterized in that: The high-power power division switch network consists of a one-to-three switch, a power divider, and two two-to-one 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 two-to-one switches, or can be output from the two two-to-one switches to the circulators in the first channel and the second channel respectively after the power divider.

5. The miniaturized upper and lower channel multiplexed transceiver assembly based on the switch power division network according to claim 1 is characterized in that: The number of power amplifier tube stages of the driving amplifier is determined according to the size of the input power and the driving power required by the final amplifier.

6. The miniaturized upper and lower channel multiplexed transceiver assembly based on the switch power division network according to claim 1 is characterized in that: An isolator is added to the output of the driver amplifier to match the driver amplifier with the final amplifier.

7. The miniaturized upper and lower channel multiplexed transceiver assembly based on the switch power division network according to claim 1 is characterized in that: The final amplifier selects a matching power amplifier tube to amplify and synthesize the output according to the output power of the component port.

8. The miniaturized upper and lower channel multiplexed transceiver assembly based on a switch power division network according to claim 1 is characterized in that: The circulator is used to protect the final amplifier to reduce the impact of external impedance changes on the transmitter.

9. The miniaturized upper and lower channel multiplexed transceiver assembly based on the switch power division network according to claim 1 is characterized in that: The filter is used to suppress the harmonics and clutter of the transmission spectrum to meet the transmitter's requirements for spectrum characteristics.

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