CN203630355U - All solid-state multi-path synthetic microwave power radar transmitter - Google Patents
All solid-state multi-path synthetic microwave power radar transmitter Download PDFInfo
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- CN203630355U CN203630355U CN201320751330.5U CN201320751330U CN203630355U CN 203630355 U CN203630355 U CN 203630355U CN 201320751330 U CN201320751330 U CN 201320751330U CN 203630355 U CN203630355 U CN 203630355U
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Abstract
The utility model relates to an all solid-state multi-path synthetic microwave power radar transmitter. The transmitter comprises a power divider, at least two power amplifying modules, a synthesizer and a control mainboard, wherein the power divider divides an input signal of the transmitter into multi-path signals with equal width and same phase and inputs the multi-path signals to the power amplifying modules, and each power amplifying module receives one signal; the power amplifying modules amplify the received signals, and transmit the amplified signals to the synthesizer; the synthesizer carries out power synthesis on the multi-path amplified signals, and the synthesized signals are output signals of the transmitter; and the control mainboard controls the power amplifying modules to work. The transmitter provided with by utility model can effectively improve the synthetic efficiency under the condition that the power amplifying modules fail, has the advantages of all solid state, double-path amplification synthesis, compact structure, fault self-adaption and the like, adopts the highly-efficient GaN power amplifier, and meets the design requirements.
Description
Technical field
The utility model relates to radar emission technology, particularly the synthetic microwave power radar transmitter of a kind of all solid state multichannel.
Background technology
Certain model radar transmitter requires more than output continuous wave power reaches 200W, and to meet structural volume compactness simultaneously, efficiency is high, the purity of frequency spectrum is high, reliability is high, possess the requirements such as various adaptive guard functions.
At present, the output power of some vacuum device single tube can meet the demands, but its volume is larger, and reliability is not high, and the power of traditional single tube solid-state power amplifier output is too little, can not meet design requirement.
Summary of the invention
The defect or the deficiency that exist for above-mentioned prior art scheme, the purpose of this utility model is, provides a kind of all solid state multichannel to synthesize microwave power radar transmitter.
For this reason, the synthetic microwave power radar transmitter of all solid state multichannel that the utility model provides comprises power splitter, at least two power amplifier modules, compositor and control motherboards;
Described power splitter is divided into the input signal of transmitter the multiple signals of constant amplitude homophase, and these multiple signals are inputed to each power amplifier module, and each power amplifier module receives a signal;
Described power amplifier module amplifies to the received signal, and the signal after amplifying is transferred to compositor;
It is synthetic that signal after described compositor amplifies multichannel carries out power, the output signal that the signal after synthesizing is transmitter;
The each power amplifier module work of described control motherboard control.
Described power amplifier module also detects the working condition of self, and sends drive control signal according to testing result to described compositor; Signal after described compositor amplifies multichannel according to the drive control signal receiving carry out power synthetic or multichannel is amplified after signal in part signal to carry out power synthetic, this part signal is to be exported by the power amplifier module not breaking down.
Described power amplifier module comprises signal amplification circuit and control circuit, and described signal amplification circuit carries out three grades of amplifications successively to signal, and the signal after amplifying inputs to compositor; Power, standing wave, the voltage and current of described control circuit to signal amplification circuit detects and judges according to testing result whether power amplifier module work breaks down, and sends drive control signal according to testing result to compositor;
Described compositor comprises:
Multiple microwave signal input ends: for inputting microwave signal;
A microwave signal output terminal: for exporting the microwave signal after synthesizing;
Multiple synthetic branch roads: multiple synthetic branch circuit parallel connections, each synthetic branch road connects a microwave signal input end, connects at least one first PIN diode on each synthetic branch road, the minus earth of described the first PIN diode, anodal and synthetic branch road is connected;
A synthetic main road: be connected with microwave signal output terminal by this synthetic main road after multiple synthetic branch circuit parallel connections, on synthetic main road, connect an impedance matching circuit, described impedance matching circuit comprises the second PIN diode and microstrip line, the minus earth of this second PIN diode, positive pole is connected with synthetic main road by microstrip line;
A multichannel drive control signal input end: for receiving drive control signal, described drive control signal is for controlling the shutoff of synthetic branch road and open-minded, and the positive pole of described the first PIN diode connects a drive control signal; The positive pole of described the second PIN diode connects a drive control signal.
Described signal amplification circuit comprises bandpass filter, one-level amplifier, π type attenuation network, second level amplifier, isolator and the GaN power amplifier of electrical connection successively, and wherein GaN power amplifier is connected with the input end of compositor.
Described control circuit comprises the first fpga chip, power supply detection module, standing wave power detection module and temperature sensor, described power supply detection module, standing wave power detection module and temperature sensor are all connected with the input end of the first fpga chip, and the output terminal of the first fpga chip is connected with the multichannel drive control signal input end of compositor.
The signal transmission distance of the positive pole of described the first PIN diode and the T-shaped joint of multiple synthetic branch circuit parallel connection is quarter-wave; The length of described microstrip line is quarter-wave; The signal transmission distance of described microstrip line and the T-shaped joint of multiple synthetic branch circuit parallel connection is quarter-wave.
On described synthetic branch road, connect first PIN diode, the tie point both sides of described the first PIN diode and synthetic branch road are connected with capacitance.
Described control motherboard also can control transmitter in case of emergency positive opening.
Described control motherboard comprises the second fpga chip, EMI filtering circuit and isolated drive circuit, and each power amplifier module is all connected with the second fpga chip with isolated drive circuit.
Compared with prior art, the beneficial effects of the utility model are:
(1) the identical module that can exchange of multiple power amplifier module of the present utility model, is used for amplifying the input signal being provided by power splitter and exports to compositor after certain power, carries out communication with control motherboard simultaneously.Module is mainly divided with control section and is formed by signal amplifying part, and signal amplifying part is divided and adopted GaN power amplifier, has improved efficiency; Control section has designed fault detect and localization of fault circuit, has improved the adaptive ability of each module and the ability of fast finding fault.
(2) it is synthetic that the radiofrequency signal that in the utility model transmitter, compositor is used for that multiple power amplifier modules are provided is carried out power, then output, this compositor has fault self-adapting function, if wherein a road input signal breaks down, this compositor inner microwave switch that can automatically switch, makes normal input signal loss-free all in the output port output of compositor, has avoided normal signal transmission to damaging port, cause power dissipation, improved combined coefficient.
(3) the control motherboard in the utility model transmitter is used for assigning various steering orders and power supply being provided to multiple power amplifier modules, after the information of each power amplifier module being uploaded comprehensively judges simultaneously, upload to system control platform, when emergency condition, also need transmitter positive opening order to be issued to each power amplifier module.
To sum up, transmitting function of the present utility model effectively improves the combined coefficient in the out of order situation of power amplifier module, there is all solid state, two-way simultaneously and amplify the features such as synthetic, compact conformation, the high efficiency GaN power amplifier of employing, fault self-adapting, meet design requirement.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and embodiment, the utility model is further explained in detail to explanation.
Fig. 1 be the circuit theory of the utility model transmitter with reference to block diagram, in this figure, n represents the number of power amplifier module, its value is to be more than or equal to 2 integer;
Fig. 2 is that the circuit theory of the utility model power amplifier module is with reference to block diagram;
Fig. 3 is that the principle of work of the utility model compositor is with reference to block diagram;
Fig. 4 is that the circuit theory of the utility model compositor is with reference to block diagram; The T-shaped knot that wherein A point is each synthetic branch road, B, C, D point are the anode of the PIN diode in synthetic branch road, and AA point is the tie point of microstrip line and synthetic main road;
Fig. 5 is that the circuit theory of the utility model control motherboard is with reference to block diagram;
Fig. 6 is that the circuit theory of the utility model power splitter is with reference to block diagram.
Embodiment
Referring to Fig. 1, all solid state multichannel of the present utility model is synthesized microwave power radar transmitter, is made up of, wherein the power splitter connecting successively, multiple power amplifier module, compositor and control motherboard, power splitter is connected with external drive input signal, and compositor is connected with external radio frequency output signal.After pumping signal input power splitter in transmitter of the present utility model, be divided into the signal of multichannel constant amplitude homophase, respectively as the pumping signal of each power amplifier module, pumping signal after merit is divided is transferred to compositor after the power amplifier link in corresponding power amplifier module is amplified to certain power, and to carry out power synthetic, then exports by compositor delivery outlet.
Referring to Fig. 6, it is constant amplitude homophase multiple signals that power splitter of the present utility model is used for dividing equally input signal, then offers respectively each power amplifier module as input signal separately.It is mainly made up of Wilkinson circuit and isolation resistance.
Referring to Fig. 2, power amplifier module of the present utility model is used for amplifying the signal of the input that power splitter provides, and exports to compositor after signal being amplified to the power of requirement, and simultaneously and control motherboard and carry out communication.Each power amplifier module is made up of signal amplification circuit part and control circuit part two parts.Wherein:
Signal amplification circuit part: adopt all solid state design.It amplifies by three grades and passive device forms, first input signal passes through bandpass filter, this wave filter is used for improving transmitter noise restraint and emission spectrum purity, then after arriving first order amplifier, enter compressive state, like this, even if the amplitude of input signal converts to some extent, its output amplitude still remains unchanged, because one-level amplifier does not amplify out-of-band noise, and π type attenuation network is below decayed together with noise to signal, so the signal to noise ratio (S/N ratio) of the signal after π type attenuation network is improved, and contributes to improve the purity of frequency spectrum; Second level amplifier belongs to driving amplifier, according to its stable input signal, can obtain stable output signal; Driving the isolator of connecting between power amplifier and final stage power amplifier, crosstalk before and after microwave signal for avoiding, cause self-sustained oscillation; Final stage power amplifier adopts novel GaN power amplifier, such power amplification efficiency reaches 50%-60%, the efficiency of traditional GaAs power amplifier only has 30%-40%, and the output power of GaN power amplifier is more much bigger than the output power of GaAs power amplifier, these two advantages of GaN power amplifier have just guaranteed high-power, the high efficiency feature of this transmitter; Radiofrequency signal after being exaggerated, through circulator output, because powerful band line directional coupler is difficult to realize, detects therefore adopt circulator to replace directional coupler to realize standing wave.
Control circuit part: adopt multifunctional adaptive design.It is made up of feed circuit, testing circuit and control chip; EMI filtering in feed circuit and power module are jointly for microwave part provides stabilized power source; Testing circuit comprises the detection of the projects such as standing wave, power, temperature, voltage, electric current, blower fan, standing wave detects and completes by the circulator and the power detection chip that are connected on output terminal, power detection makes it ingoing power detection chip by a part of power that is coupled at the microstrip gap of delivery outlet and realizes, temperature detection is by place a temperature sensor near final stage power amplifier, and this sensor transmits binary code temperature value to the first fpga chip in real time; Voltage, current detecting realize by the relevant comparer of power sense circuit, it is identical that blower fan detects the principle detecting with power supply, each test item has all designed localization of fault circuit, as long as its detected value has exceeded preset value and just reported to the police, sends out a warning, the adaptive ability of module and the ability of fast finding fault are greatly improved;
It (is mainly differentiation and the chip of controlling in motherboard by fpga chip that control chip in the utility model power amplifier module can be selected, control chip in power amplifier module is for being expressed as the first fpga chip) complete, it is responsible for collecting the information of each testing circuit, if break down signal, the first fpga chip sends the instruction of power cutoff immediately to power module, and send drive control signal to compositor, as when time working properly, described control circuit sends high level to compositor, in the time breaking down, described control circuit sends low level to compositor, make the synthetic branch road of compositor inside make corresponding action.
It is synthetic that the radiofrequency signal that compositor of the present utility model is used for that multiple power amplifier modules are provided is carried out power, then output.
Referring to Fig. 3 and Fig. 4, compositor of the present utility model comprises multiple synthetic branch roads, synthetic main road and impedance matching circuit; Wherein, each synthetic branch road and impedance matching circuit are all connected with the drive control signal of power amplifier module control, and the output terminal of each synthetic branch road connects impedance matching circuit.
Compositor of the present utility model is under the effect of the drive control signal of power amplifier module control, by changing the switching state of synthetic branch road, reach the object that improves combined coefficient, the drive control signal of power amplifier module control provides required positive and negative voltage for synthesizing branch road and impedance matching circuit, and changing by the switching of microwave circuit the impedance mismatching causing can compensate by impedance matching circuit.
Drive control signal described in the utility model can be by the control circuit control in power amplifier module the high and low level that sends, when transmitter is working properly, sends high level to compositor, in the time breaking down, sends low level to compositor.Wherein said high level refers to art-recognized high level, refers generally to 3-5 volt.Low level described in the utility model is art-recognized low level, refers generally to below 0.8 volt.
With reference to figure 3, the function of synthetic branch road of the present utility model is except input microwave signal, also comprise microwave control action, the generating positive and negative voltage that the PIN diode connecting on each synthetic branch road can root provides according to the drive control signal of power amplifier module control, turn-off and conducting from compositor input end to the passage output terminal, thereby improve combined coefficient.With reference to figure 4, on each synthetic branch road, be connected with capacitance and the first PIN diode composition, wherein, and the minus earth of the first PIN diode, positive pole is connected with the transmission line of synthetic branch road by wire jumper, and the positive pole of each PIN diode is connected with drive control signal.For the high situation of insulated degree requirement, each synthetic branch road is connected with multiple PIN diode, and multiple the first PIN diode parallel connection.
It is synthetic that impedance matching circuit of the present utility model completes microwave power according to drive control signal, it is used for to compensating with the part power amplifier module impedance discontinuity that power produces when synthetic that breaks down power amplifier module power working properly is synthetic, to reach optimum matching state.With reference to figure 4, it is mainly made up of microstrip line, capacitance and the second PIN diode.Wherein, the minus earth of the second PIN diode, positive pole is connected with microstrip line by wire jumper, and in impedance matching circuit, the access point of drive control signal is the positive pole of the second PIN diode.In the time of actual welding circuit, the tie-in line of drive control signal is between the second PIN diode positive pole and microstrip line herein, and access point is the closer to the positive pole of diode, and the accuracy of circuit working is higher.
In conjunction with shown in Fig. 4, compositor principle of work of the present utility model being explained.For by capacitance C
1-1, C
1-2, C
2-1, C
2-2with PIN diode D
1, D
2and the compositor of impedance matching circuit composition, wherein: PIN diode D
1, D
2minus earth, PIN diode D
1positive pole be connected to C by wire jumper
1-1and C
1-2between transmission line on; PIN diode D
2positive pole be connected to C by wire jumper
2-1and C
2-2between transmission line on, C
1-1, C
1-2, C
2-1, C
2-2be used for by radiofrequency signal, isolated DC signal, D
1, D
2by adding positive voltage and negative voltage control microwave transmission;
Impedance matching circuit is by capacitance C
0with PIN diode D
0composition, wherein, PIN diode D
0minus earth, PIN diode D
0positive pole be connected to C by wire jumper and microstrip line
0and on transmission line between A point; PIN diode D
0be used for coordinating D
1, D
2do impedance transformation, C
0be used for by radiofrequency signal, isolated DC signal.
Its course of work is divided into following two kinds of situations:
The first, power amplifier module 1 and power amplifier module 2 are working properly, when the drive control signal of power amplifier module control is at D
1, D
2positive pole while all adding negative voltage, D
1and D
2be equivalent to respectively a very little capacitor C of capacitance that is connected to ground
ta stray inductance Ls connects, the transmission line length of ordering to A due to B point and C point is quarter-wave, the equiva lent impedance that this two control branch road is ordered at A is very little, be similar to short circuit, do not affect the microwave transmission of branch road, also be branch road 1 and branch road 2 all in conducting state, it is synthetic that the output signal of power amplifier module 1 and power amplifier module 2 is carried out power at the output terminal of compositor;
The second, power amplifier module 1 breaks down, when the drive control signal of power amplifier module control is at D
1positive pole add positive voltage, at D
2positive pole while adding negative voltage, D
1be equivalent to a very little stray inductance Ls of resistance R s series connection of resistance that is connected to ground, D
2be equivalent to a very little capacitor C of capacitance that is connected to ground
ta stray inductance Ls connects, according to transmission line theory, the equiva lent impedance that now synthetic branch road 1 is ordered at A is for very large, be approximately radio frequency open circuit, the equiva lent impedance that synthetic branch road 2 is ordered at A is very little, is approximately radio-frequency-short, so the signal of synthetic branch road 2 can arrive the output port of compositor completely, and can not be transferred to synthetic branch road 1, thereby improve combined coefficient.
The course of work of impedance matching circuit is divided into following two kinds of situations:
The first, power amplifier module 1 and power amplifier module 2 are working properly, when the drive control signal of power amplifier module control is D
0provide positive voltage, D
0be equivalent to a very little stray inductance Ls of resistance R s series connection of resistance that is connected to ground, because of D
0the length of ordering to AA is quarter-wave, and now, the impedance that impedance matching circuit equivalence is ordered to AA is very large, is approximately radio frequency open circuit, that is to say, impedance matching circuit is now inoperative;
The second, power amplifier module 1 breaks down, when the drive control signal of power amplifier module control is D
0when negative voltage is provided, D
0be equivalent to a very little capacitor C of capacitance that is connected to ground
tthe stray inductance Ls that connects, D
0the impedance that impedance matching circuit equivalence is ordered to AA is an induction reactance, just compensates the impedance mismatching phenomenon that branch road 1 turn-offs, branch road 2 conductings cause, thereby makes the impedance of compositor output port reach matching status.
Referring to Fig. 1 and 5, in order to realize and external system control platform signal transmission, better control multiple power amplifier module work, transmitter of the present utility model also comprises a control motherboard, controls motherboard and is connected with circumferential work amplification module force switch and system power supply and control signal.Controlling motherboard is used for assigning unlatching, turn-offing various steering orders and power supply is provided to each power amplifier module, after the information of uploading to control motherboard by isolated drive circuit after comprehensive control circuit in each power amplifier module judgement comprehensively being judged, upload to system control platform simultaneously, when emergency condition, power amplifier module positive opening order can also be issued to each power amplifier module, make this power amplifier module in there is minor failure, still output power, to meet wartime requirement.It is mainly by the electric circuit constitutes such as FPGA, EMI filtering, isolation drive.
Embodiment:
Referring to figs. 1 to Fig. 6, the radar transmitter of this embodiment is made up of the power splitter connecting successively, power amplifier module 1, power amplifier module 2, compositor and control motherboard, wherein, power splitter is connected with external drive input signal, control motherboard and be connected with circumferential work amplification module force switch and system power supply and control signal, compositor is connected with external radio frequency output signal.
The power splitter of this embodiment is mainly made up of Wilkinson circuit and isolation resistance.With reference to figure 6, resistance is that the isolation resistance of 100 ohm is welded between two brachium pontis of Wilkinson, and the length that pad B and C are ordered to A is quarter-wave.
Power splitter, power amplifier module 1, power amplifier module 2, annexation between compositor and control motherboard is as follows: two output terminals of power splitter are distinguished two rf inputs of wired power amplifier module 1 and power amplifier module 2, two radio-frequency (RF) output end of amplification module 1 and power amplifier module 2 are connected respectively two rf inputs of compositor, two low frequency input terminals of power amplifier module 1 and power amplifier module 2 are connected controls motherboard output terminal, the fault-signal of power amplifier module 1 and power amplifier module 2 is connected to the low frequency input terminal of compositor simultaneously, wherein, power splitter input end is connected with external drive input signal, control motherboard and be connected with circumferential work amplification module force switch signal and systems power supply and control signal.
When work, after external drive signal input power splitter, be divided into the signal of two-way constant amplitude homophase, respectively as the pumping signal of two power amplifier modules, the pumping signal after merit is divided is transferred to the compositor with fault self-adapting function and carries out the synthetic output of power after the power amplifier link in power amplifier module is amplified to certain power.
Compositor has fault self-adapting function, if power amplifier module 1 breaks down, the fault-signal that synthetic branch road 1 is uploaded according to power amplifier module 1 moves, making the equiva lent impedance that synthetic branch road 1 is ordered at A is infinity, be similar to open circuit, the signal of power amplifier module 2 just can pastly not synthesize branch road 1 place's distribution power after arrival A point, but is all transferred to compositor delivery outlet, avoid causing power dissipation, improved combined coefficient.
Claims (9)
1. the synthetic microwave power radar transmitter of all solid state multichannel, is characterized in that, this radar transmitter comprises power splitter, at least two power amplifier modules, compositor and control motherboards;
Described power splitter is divided into the input signal of transmitter the multiple signals of constant amplitude homophase, and these multiple signals are inputed to each power amplifier module, and each power amplifier module receives a signal;
Described power amplifier module amplifies to the received signal, and the signal after amplifying is transferred to compositor;
It is synthetic that signal after described compositor amplifies multichannel carries out power, the output signal that the signal after synthesizing is transmitter;
The each power amplifier module work of described control motherboard control.
2. the synthetic microwave power radar transmitter of all solid state multichannel as claimed in claim 1, is characterized in that, described power amplifier module also detects the working condition of self, and sends drive control signal according to testing result to described compositor; Signal after described compositor amplifies multichannel according to the drive control signal receiving carry out power synthetic or multichannel is amplified after signal in part signal to carry out power synthetic, this part signal is to be exported by the power amplifier module not breaking down.
3. the synthetic microwave power radar transmitter of all solid state multichannel as claimed in claim 2, it is characterized in that, described power amplifier module comprises signal amplification circuit and control circuit, and described signal amplification circuit carries out three grades of amplifications successively to signal, and the signal after amplifying inputs to compositor; Power, standing wave, the voltage and current of described control circuit to signal amplification circuit detects and judges according to testing result whether power amplifier module work breaks down, and sends drive control signal according to testing result to compositor;
Described compositor comprises:
Multiple microwave signal input ends: for inputting microwave signal;
A microwave signal output terminal: for exporting the microwave signal after synthesizing;
Multiple synthetic branch roads: multiple synthetic branch circuit parallel connections, each synthetic branch road connects a microwave signal input end, connects at least one first PIN diode on each synthetic branch road, the minus earth of described the first PIN diode, anodal and synthetic branch road is connected;
A synthetic main road: be connected with microwave signal output terminal by this synthetic main road after multiple synthetic branch circuit parallel connections, on synthetic main road, connect an impedance matching circuit, described impedance matching circuit comprises the second PIN diode and microstrip line, the minus earth of this second PIN diode, positive pole is connected with synthetic main road by microstrip line;
A multichannel drive control signal input end: for receiving drive control signal, described drive control signal is for controlling the shutoff of synthetic branch road and open-minded, and the positive pole of described the first PIN diode connects a drive control signal; The positive pole of described the second PIN diode connects a drive control signal.
4. the synthetic microwave power radar transmitter of all solid state multichannel as claimed in claim 3, it is characterized in that, described signal amplification circuit comprises bandpass filter, one-level amplifier, π type attenuation network, second level amplifier, isolator and the GaN power amplifier of electrical connection successively, and wherein GaN power amplifier is connected with the input end of compositor.
5. the synthetic microwave power radar transmitter of all solid state multichannel as described in claim 3 or 4, it is characterized in that, described control circuit comprises the first fpga chip, power supply detection module, standing wave power detection module and temperature sensor, described power supply detection module, standing wave power detection module and temperature sensor are all connected with the input end of the first fpga chip, and the output terminal of the first fpga chip is connected with the multichannel drive control signal input end of compositor.
6. the synthetic microwave power radar transmitter of all solid state multichannel as claimed in claim 3, is characterized in that, the signal transmission distance of the positive pole of described the first PIN diode and the T-shaped joint of multiple synthetic branch circuit parallel connection is quarter-wave; The length of described microstrip line is quarter-wave; The signal transmission distance of described microstrip line and the T-shaped joint of multiple synthetic branch circuit parallel connection is quarter-wave.
7. the synthetic microwave power radar transmitter of all solid state multichannel as claimed in claim 3, is characterized in that, on described synthetic branch road, connect first PIN diode, the tie point both sides of described the first PIN diode and synthetic branch road are connected with capacitance.
8. the synthetic microwave power radar transmitter of all solid state multichannel as claimed in claim 1, is characterized in that, described control motherboard also can control transmitter in case of emergency positive opening.
9. the synthetic microwave power radar transmitter of all solid state multichannel as described in claim 1 or 8, it is characterized in that, described control motherboard comprises the second fpga chip, EMI filtering circuit and isolated drive circuit, and each power amplifier module is all connected with the second fpga chip with isolated drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320751330.5U CN203630355U (en) | 2013-11-22 | 2013-11-22 | All solid-state multi-path synthetic microwave power radar transmitter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320751330.5U CN203630355U (en) | 2013-11-22 | 2013-11-22 | All solid-state multi-path synthetic microwave power radar transmitter |
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| CN203630355U true CN203630355U (en) | 2014-06-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675764A (en) * | 2013-11-22 | 2014-03-26 | 西安天和防务技术股份有限公司 | All-solid multi-channel synthetic microwave-power radar transmitter |
| CN104954028A (en) * | 2015-07-02 | 2015-09-30 | 中国电子科技集团公司第三十八研究所 | Timed double-output transmitting system |
| CN107219509A (en) * | 2017-05-22 | 2017-09-29 | 西安电子工程研究所 | A kind of method for realizing radar system transmission channel on-line checking |
| CN108152807A (en) * | 2017-12-05 | 2018-06-12 | 上海无线电设备研究所 | A kind of spaceborne highly reliable self-test monopulse radar system and its application process |
-
2013
- 2013-11-22 CN CN201320751330.5U patent/CN203630355U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675764A (en) * | 2013-11-22 | 2014-03-26 | 西安天和防务技术股份有限公司 | All-solid multi-channel synthetic microwave-power radar transmitter |
| CN103675764B (en) * | 2013-11-22 | 2016-03-02 | 西安天和防务技术股份有限公司 | A kind of all solid state multichannel synthesis microwave power radar transmitter |
| CN104954028A (en) * | 2015-07-02 | 2015-09-30 | 中国电子科技集团公司第三十八研究所 | Timed double-output transmitting system |
| CN104954028B (en) * | 2015-07-02 | 2018-01-09 | 中国电子科技集团公司第三十八研究所 | A kind of timesharing dual output emission system |
| CN107219509A (en) * | 2017-05-22 | 2017-09-29 | 西安电子工程研究所 | A kind of method for realizing radar system transmission channel on-line checking |
| CN108152807A (en) * | 2017-12-05 | 2018-06-12 | 上海无线电设备研究所 | A kind of spaceborne highly reliable self-test monopulse radar system and its application process |
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