Multi-channel high-power pulse phased array power amplification equipment

Abstract

The utility model discloses multi-channel high-power pulse phased array power amplification equipment, which relates to the technical field of radio frequency circuits and comprises a controllable signal generation unit, a controllable power distribution unit, a final-stage amplification unit and a directional coupling unit which are sequentially connected. The communication control unit, the power supply control unit and the air cooling heat dissipation unit are connected in sequence; the control unit, the power supply control unit and the air cooling heat dissipation unit are sequentially connected to the controllable signal generation unit, the controllable power distribution unit, the final-stage amplification unit and the directional coupling unit in parallel. According to the scheme, the design is convenient, the circuit is simple, the cost is low, the reliability is high, the application range is wide, and the practicability is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of radio frequency circuit, in particular to a multi-channel high-power pulse phased array power amplification device. BACKGROUND

[0002] The high-power pulse phased array power amplification device is the most basic and widely used microwave circuit functional unit of the phased array system, wherein the phased array power amplification device has the advantages of short reaction time, high data rate, strong anti-interference ability and high reliability, and is widely used in the fields of radar and medical treatment, and can be used as a final stage power amplifier for external output in instrument equipment, and can be used as a transmitter power amplifier in short-distance communication equipment.

[0003] The existing phased array amplification device has high reliability, but has large volume and large power consumption, and is troublesome to design. CONTENT OF THE INVENTION

[0004] In view of the above problems in the prior art, the multi-channel high-power pulse phased array power amplification device provided by the present application solves the problems of large volume, large power consumption and complex circuit.

[0005] In order to achieve the above-mentioned purposes of the present application, the technical scheme adopted by the present application is as follows: a multi-channel high-power pulse phased array power amplification device, comprising controllable signal generating units, controllable power distribution units, final stage amplification units and directional coupling units connected in sequence; and communication control units, power control units and air-cooled heat dissipation units connected in sequence.

[0006] The controllable signal generating units, the controllable power distribution units, the final stage amplification units and the directional coupling units all comprise function and control input ends.

[0007] The communication control units and the power control units all comprise function and control output ends.

[0008] The function and control output ends of the communication control units are respectively connected with the function and control input ends of the controllable signal generating units, the controllable power distribution units, the final stage amplification units and the directional coupling units.

[0009] The function and control output ends of the power control units are respectively connected with the function and control input ends of the controllable signal generating units, the controllable power distribution units, the final stage amplification units and the directional coupling units.

[0010] Further, the controllable signal generating unit comprises a single-chip microcomputer U1 of model STM32F756G-EVAL_QSG, a VCCHF pin of the single-chip microcomputer U1 is connected with a VCCPS pin, a VCCPD pin, an AVDD pin, a grounding capacitor C34, a grounding capacitor C50 and a 3.3V DC power supply of the single-chip microcomputer U1 respectively; a BIAS pin of the single-chip microcomputer U1 is connected with one end of a capacitor C36, the other end of the capacitor C36 is connected with a grounding capacitor C33; a VPPCP pin of the single-chip microcomputer U1 is connected with a grounding capacitor C59 and a function and control output end of the power supply control unit respectively, a CP pin of the single-chip microcomputer U1 is connected with the loop filter group.

[0011] A SCK pin, an LD-SDO pin, an SDI pin and an SEN pin of the single-chip microcomputer U1 are connected with one end of a resistor R13, one end of a resistor R15, one end of a resistor R17 and one end of a resistor R25 respectively, the other end of the resistor R13, the other end of the resistor R15 and the other end of the resistor R25 are connected with a clock source as output ends of the controllable signal generating unit and are connected with the controllable power distribution unit, the other end of the resistor R17 is connected with a function and control output end of the communication control unit.

[0012] Further, the loop filter group comprises a resistor R6, one end of the resistor R6 is connected with a CP pin of the single-chip microcomputer U1, one end of the resistor R6 is also connected with a grounding capacitor C14 and one end of a resistor R12 respectively, the other end of the resistor R12 is connected with a grounding capacitor C20, the other end of the resistor R6 is connected with one end of a resistor R7 and a grounding capacitor C12 respectively, the other end of the resistor R7 is connected with a grounding capacitor C13 and a loop filter adjustment signal input end respectively.

[0013] Further, the controllable power distribution unit comprises an impedance matching network, a power distribution device S5, a power distribution device N1, a power distribution device N2, a gain adjustment network and a phase adjustment network.

[0014] The input end of the impedance matching network is connected with the other end of the resistance R13, the other end of the resistance R15 and the clock source as the input end of the controllable power distribution unit, the output end of the impedance matching network is connected with the input end of the power distribution device S5, the first output end of the power distribution device S5 is connected with the input end of the power distribution device N1, the second output end of the power distribution device S5 is connected with the input end of the power distribution device N2, the first output end and the second output end of the power distribution device N1 and the first output end and the second output end of the power distribution device N2 are respectively connected with the first input end, the second input end, the third input end and the fourth input end of the gain adjustment network, the first output end, the second output end, the third output end and the fourth output end of the gain adjustment network are respectively connected with the first input end, the second input end, the third input end and the fourth input end of the phase adjustment network, and the first output end, the second output end, the third output end and the fourth output end of the gain adjustment network are respectively connected with the four-way output end of the controllable power distribution unit.

[0015] Further, the final stage amplification unit includes four-way final stage amplification channels, each of which includes a detector and a pulse detection comparator connected in sequence.

[0016] The input end of the detector is connected with one-way output end of the controllable power distribution unit as the input end of the final stage amplification channel, and the output end of the pulse detection comparator is connected with the directional coupling unit as the output end of the final stage amplification channel.

[0017] Further, the pulse detection comparator includes a comparator D2 with model AD8561, the +IN pin of the comparator D2 is connected with one end of the resistance R173, the other end of the resistance R173 is connected with the output end of the detector as the input end of the pulse detection comparator, the -IN pin of the comparator D2 is respectively connected with one end of the resistance R178, one end of the resistance R179 and the ground capacitor C127, the other end of the resistance R178 is connected with the ground resistance R181, the other end of the resistance R179 is connected with the function and control output end of the power supply control unit, the OUT pin of the comparator D2 is respectively connected with one end of the resistance R170 and one end of the resistance R176, the other end of the resistance R176 is connected with the function and control output end of the communication control unit, the other end of the resistance R170 is respectively connected with one end of the resistance R156 and one end of the resistance R199, and the other end of the resistance R156 is connected with the OUT pin of the comparator D2.

[0018] The other end of the resistor R199 is connected with the one end of the resistor R186, the one end of the capacitor C140 and the-IN2 pin of the rail-to-rail operational amplifier N18 with the model AD8062 respectively, the other end of the resistor R186 is connected with the other end of the capacitor C140, the one end of the resistor R184 and the OUT pin of the rail-to-rail operational amplifier N18 respectively, the other end of the resistor R184 is connected with the one end of the resistor R193, the other end of the resistor R193 is connected with the one end of the resistor R190 and the-IN1 pin of the rail-to-rail operational amplifier N18 respectively, the other end of the resistor R190 is connected with the OUT1 pin of the rail-to-rail operational amplifier N18, and the other end of the resistor R190 is also connected with the input end of the directional coupling unit as the other end of the pulse detection comparator.

[0019] Further, the communication control unit is also connected with the host computer, and the host computer signals received by the communication control unit include the pulse width, duty cycle, gain, phase and enable control parameters of the multi-channel high-power pulse phased array power amplification device.

[0020] Further, the power supply control unit is also connected with the external power supply.

[0021] The utility model discloses the beneficial effects are:

[0022] 1. Controllable signal generating unit is connected through parallel connection control unit, generates pulse width according to host computer instruction, realizes controllable of high-power pulse power,

[0023] 2. Controllable power distribution unit includes impedance matching network, power distribution device S5, power distribution device N1 and power distribution device N2, and the power distribution network is formed by power distribution device S5, power distribution device N1 and power distribution device N2, carries out power distribution and gain adjustment, realizes the power of different multi-channel, and the independent of each channel of cooperation final stage power amplifier unit realizes multi-channel processing.

[0024] 3. The application has the advantages of convenient design, simple circuit, low cost, high reliability, wide application range and strong practicability. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is multi-channel high-power pulse phased array power amplification device frame diagram;

[0026] Figure 2 It is controllable signal generating unit principle diagram;

[0027] Figure 3 It is pulse detection comparator principle diagram. DETAILED DESCRIPTION

[0028] The specific embodiments of the present application are described below to enable those skilled in the art to understand the present application, but it should be clear that the present application is not limited to the scope of the specific embodiments, and for those skilled in the art, as long as various changes are within the spirit and scope of the present application defined and determined by the appended claims, these changes are obvious, and all new creations using the concept of the present application are within the scope of protection.

[0029] As shown in the figure, in an embodiment of the present application, a multi-channel high-power pulse phased array power amplification device is provided, comprising controllable signal generation unit, controllable power distribution unit, final stage amplification unit and directional coupling unit connected in sequence; and communication control unit, power control unit and air cooling unit connected in sequence; Figure 1 The controllable signal generation unit, the controllable power distribution unit, the final stage amplification unit and the directional coupling unit all include a function and control input end;

[0030] The communication control unit and the power control unit both include a function and control output end;

[0031] The function and control output end of the communication control unit is connected with the function and control input end of the controllable signal generation unit, the controllable power distribution unit, the final stage amplification unit and the directional coupling unit respectively;

[0032] The function and control output end of the power control unit is connected with the function and control input end of the controllable signal generation unit, the controllable power distribution unit, the final stage amplification unit and the directional coupling unit respectively.

[0033] As shown in the figure, the controllable signal generation unit includes a single-chip microcomputer U1 with model STM32F756G-EVAL_QSG, the VCCHF pin of the single-chip microcomputer U1 is connected with the VCCPS pin, the VCCPD pin, the AVDD pin of the single-chip microcomputer U1, a grounding capacitor C34, a grounding capacitor C50 and a 3.3V direct current power supply respectively; the BIAS pin of the single-chip microcomputer U1 is connected with one end of a capacitor C36, the other end of the capacitor C36 is connected with a grounding capacitor C33; the VPPCP pin of the single-chip microcomputer U1 is connected with a grounding capacitor C59 and a function and control output end of the power control unit respectively, and the CP pin of the single-chip microcomputer U1 is connected with a loop filter group;

[0034] Figure 2

[0035] ​​The SCK pin, the LD-SDO pin, the SDI pin and the SEN pin of the single-chip microcomputer U1 are connected with one end of the resistor R13, one end of the resistor R15, one end of the resistor R17 and one end of the resistor R25 respectively, the other end of the resistor R13, the other end of the resistor R15 and the other end of the resistor R25 are connected with a clock source and serve as output terminals of a controllable signal generating unit and are connected with a controllable power distribution unit, and the other end of the resistor R17 is connected with a function and control output terminal of a communication control unit.

[0036] Figure 2 In the embodiment, the peripheral circuits of the single-chip microcomputer U1 are all used for power supply filtering.

[0037] The loop filter group comprises the resistor R6, one end of the resistor R6 is connected with the CP pin of the single-chip microcomputer U1, one end of the resistor R6 is also connected with the ground capacitor C14 and one end of the resistor R12 respectively, the other end of the resistor R12 is connected with the ground capacitor C20, the other end of the resistor R6 is connected with one end of the resistor R7 and the ground capacitor C12 respectively, the other end of the resistor R7 is connected with the ground capacitor C13 and a loop filter adjustment signal input terminal respectively.

[0038] The controllable power distribution unit comprises an impedance matching network, a power distribution device S5, a power distribution device N1, a power distribution device N2, a gain adjustment network and a phase adjustment network.

[0039] The input terminal of the impedance matching network serves as an input terminal of the controllable power distribution unit and is connected with the other end of the resistor R13, the other end of the resistor R15 and the other end of the resistor R25, the output terminal of the impedance matching network is connected with the input terminal of the power distribution device S5, the first output terminal of the power distribution device S5 is connected with the input terminal of the power distribution device N1, the second output terminal of the power distribution device S5 is connected with the input terminal of the power distribution device N2, the first output terminal and the second output terminal of the power distribution device N1 and the first output terminal and the second output terminal of the power distribution device N2 are connected with the first input terminal, the second input terminal, the third input terminal and the fourth input terminal of the gain adjustment network respectively, the first output terminal, the second output terminal, the third output terminal and the fourth output terminal of the gain adjustment network are connected with the first input terminal, the second input terminal, the third input terminal and the fourth input terminal of the phase adjustment network respectively, and the first output terminal, the second output terminal, the third output terminal and the fourth output terminal of the gain adjustment network serve as four-way output terminals of the controllable power distribution unit.

[0040] The power distribution device S5 divides the signal power into two signals, and the power distribution device N1 and N2 divide the signal power into four signals with the same power, which has good isolation and does not appear the phenomenon of interference self-excitation, the gain adjustment network and the phase adjustment network adjust the gain and the phase of each signal respectively.

[0041] The final stage amplification unit comprises four final stage amplification channels; each final stage amplification channel comprises a detector and a pulse detection comparator connected in sequence;

[0042] The input end of the detector is connected with one output end of the controllable power distribution unit as the input end of the final stage amplification channel; the output end of the pulse detection comparator is connected with the directional coupling unit as the output end of the final stage amplification channel.

[0043] As shown in Figure 3 The pulse detection comparator comprises a comparator D2 with model AD8561, the +IN pin of the comparator D2 is connected with one end of a resistor R173, the other end of the resistor R173 is connected with the output end of the detector as the input end of the pulse detection comparator, the -IN pin of the comparator D2 is connected with one end of a resistor R178, one end of a resistor R179 and a grounding capacitor C127 respectively, the other end of the resistor R178 is connected with a grounding resistor R181, the other end of the resistor R179 is connected with the function and control output end of the power control unit, the OUT pin of the comparator D2 is connected with one end of a resistor R170 and one end of a resistor R176 respectively, the other end of the resistor R176 is connected with the function and control output end of the communication control unit, the other end of the resistor R170 is connected with one end of a resistor R156 and one end of a resistor R199 respectively, the other end of the resistor R156 is connected with the OUT pin of the comparator D2;

[0044] The other end of the resistor R199 is connected with one end of a resistor R186, one end of a capacitor C140 and the -IN2 pin of a rail-to-rail operational amplifier N18 with model AD8062 respectively, the other end of the resistor R186 is connected with the other end of the capacitor C140, one end of a resistor R184 and the OUT pin of the rail-to-rail operational amplifier N18 respectively, the other end of the resistor R184 is connected with one end of a resistor R193, the other end of the resistor R193 is connected with one end of a resistor R190 and the -IN1 pin of the rail-to-rail operational amplifier N18 respectively, the other end of the resistor R190 is connected with the OUT1 pin of the rail-to-rail operational amplifier N18, the other end of the resistor R190 is also connected with the input end of the directional coupling unit as the other end of the pulse detection comparator.

[0045] Such application mode can maintain the peak value of the voltage detected by the detector when the pulse is applied, which can detect the real output peak power of the power amplifier and control the output power of the power amplifier stably through negative feedback.

[0046] In particular, the communication control unit is also connected with the host computer, and the signals received by the communication control unit from the host computer include the pulse width, duty cycle, gain, phase and enable control parameters of the multi-channel high-power pulse phased array power amplification device.

[0047] In particular, the power supply control unit is also connected to an external power supply.

[0048] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A multi-channel high-power pulsed phased array power amplification device, characterized in that, The controllable signal generating unit, the controllable power distribution unit, the final stage amplification unit and the directional coupling unit are sequentially connected; and the communication control unit, the power control unit and the air-cooled heat dissipation unit are sequentially connected; The controllable signal generating unit, the controllable power distribution unit, the final stage amplification unit and the directional coupling unit all include a function and control input end; The communication control unit and the power control unit all include a function and control output end; The function and control output end of the communication control unit is connected with the function and control input end of the controllable signal generating unit, the controllable power distribution unit, the final stage amplification unit and the directional coupling unit respectively; The function and control output end of the power control unit is connected with the function and control input end of the controllable signal generating unit, the controllable power distribution unit, the final stage amplification unit and the directional coupling unit respectively.

2. The multi-channel high-power pulsed phased array power amplification device of claim 1, wherein, The controllable signal generating unit includes a single-chip microcomputer U1 with a model of STM32F756G-EVAL_QSG, the VCCHF pin of the single-chip microcomputer U1 is connected with the VCCPS pin, the VCCPD pin, the AVDD pin of the single-chip microcomputer U1, a grounding capacitor C34, a grounding capacitor C50 and a 3.3V direct current power supply respectively, the BIAS pin of the single-chip microcomputer U1 is connected with one end of a capacitor C36, the other end of the capacitor C36 is connected with a grounding capacitor C33, the VPPCP pin of the single-chip microcomputer U1 is connected with a grounding capacitor C59 and the function and control output end of the power control unit respectively, and the CP pin of the single-chip microcomputer U1 is connected with a loop filter group; The SCK pin, the LD-SDO pin, the SDI pin and the SEN pin of the single-chip microcomputer U1 are connected with one end of a resistor R13, one end of a resistor R15, one end of a resistor R17 and one end of a resistor R25 respectively, the other end of the resistor R13, the other end of the resistor R15 and the other end of the resistor R25 are all connected with a clock source as the output end of the controllable signal generating unit and connected with the controllable power distribution unit, and the other end of the resistor R17 is connected with the function and control output end of the communication control unit.

3. The multi-channel high-power pulsed phased array power amplification device of claim 2, wherein, The loop filter group includes a resistor R6, one end of the resistor R6 is connected with the CP pin of the single-chip microcomputer U1, one end of the resistor R6 is also connected with a grounding capacitor C14 and one end of a resistor R12 respectively, the other end of the resistor R12 is connected with a grounding capacitor C20, the other end of the resistor R6 is connected with one end of a resistor R7 and a grounding capacitor C12 respectively, and the other end of the resistor R7 is connected with a grounding capacitor C13 and a loop filter adjustment signal input end respectively.

4. The multi-channel high-power pulsed phased array power amplification device of claim 2, wherein, The controllable power distribution unit includes an impedance matching network, a power distribution device S5, a power distribution device N1, a power distribution device N2, a gain adjustment network and a phase adjustment network; The input end of the impedance matching network is connected with the other end of the resistance R13, the other end of the resistance R15 and the clock source as the input end of the controllable power distribution unit, the output end of the impedance matching network is connected with the input end of the power distribution device S5, the first output end of the power distribution device S5 is connected with the input end of the power distribution device N1, the second output end of the power distribution device S5 is connected with the input end of the power distribution device N2, the first output end and the second output end of the power distribution device N1 and the first output end and the second output end of the power distribution device N2 are respectively connected with the first input end, the second input end, the third input end and the fourth input end of the gain adjustment network, the first output end, the second output end, the third output end and the fourth output end of the gain adjustment network are respectively connected with the first input end, the second input end, the third input end and the fourth input end of the phase adjustment network, and the first output end, the second output end, the third output end and the fourth output end of the gain adjustment network are respectively connected with the four-way output end of the controllable power distribution unit.

5. The multi-channel high-power pulsed phased array power amplification device of claim 2, wherein, The final stage amplification unit comprises four final stage amplification channels, each of which comprises a detector and a pulse detection comparator connected in sequence; The input end of the detector is connected with one-way output end of the controllable power distribution unit as the input end of the final stage amplification channel, and the output end of the pulse detection comparator is connected with the directional coupling unit as the output end of the final stage amplification channel.

6. The multi-channel high-power pulsed phased array power amplification device of claim 5, wherein, The pulse detection comparator comprises a comparator D2 with model AD8561, the +IN pin of the comparator D2 is connected with one end of the resistance R173, the other end of the resistance R173 is connected with the output end of the detector as the input end of the pulse detection comparator, the -IN pin of the comparator D2 is respectively connected with one end of the resistance R178, one end of the resistance R179 and the grounding capacitor C127, the other end of the resistance R178 is connected with the grounding resistance R181, the other end of the resistance R179 is connected with the function and control output end of the power supply control unit, the OUT pin of the comparator D2 is respectively connected with one end of the resistance R170 and one end of the resistance R176, the other end of the resistance R176 is connected with the function and control output end of the communication control unit, the other end of the resistance R170 is respectively connected with one end of the resistance R156 and one end of the resistance R199, and the other end of the resistance R156 is connected with the OUT pin of the comparator D2. The other end of the resistor R199 is connected with the one end of the resistor R186, the one end of the capacitor C140 and the -IN2 pin of the rail-to-rail operational amplifier N18 with the model AD8062 respectively, the other end of the resistor R186 is connected with the other end of the capacitor C140, the one end of the resistor R184 and the OUT pin of the rail-to-rail operational amplifier N18 respectively, the other end of the resistor R184 is connected with the one end of the resistor R193, the other end of the resistor R193 is connected with the one end of the resistor R190 and the -IN1 pin of the rail-to-rail operational amplifier N18 respectively, the other end of the resistor R190 is connected with the OUT1 pin of the rail-to-rail operational amplifier N18, and the other end of the resistor R190 is also connected with the input end of the directional coupling unit as the other end of the pulse detection comparator.

7. The multi-channel high-power pulse phased array power amplification device of claim 1, wherein, The communication control unit is also connected with the host computer, and the host computer signals received by the communication control unit include: the pulse width, duty cycle, gain, phase and enable control parameters of the multi-channel high-power pulse phased array power amplification device.

8. The multi-channel high-power pulse phased array power amplification device of claim 1, wherein, The power supply control unit is also connected with the external power supply.

9. The multi-channel high-power pulse phased array power amplification device of claim 2, wherein, The model of the detector is AD8319.

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