CN104954028B - A kind of timesharing dual output emission system - Google Patents
A kind of timesharing dual output emission system Download PDFInfo
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- CN104954028B CN104954028B CN201510391370.7A CN201510391370A CN104954028B CN 104954028 B CN104954028 B CN 104954028B CN 201510391370 A CN201510391370 A CN 201510391370A CN 104954028 B CN104954028 B CN 104954028B
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Abstract
The present invention discloses a kind of timesharing dual output emission system, including the driving stage amplifying unit sequentially connected, power divider, final stage amplifying unit, power combiner, first antenna, second antenna, speed-sensitive switch network is provided between driving stage amplifying unit and power divider, speed-sensitive switch network includes the signaling switch using GaAs core, and speed-sensitive switch network is the switching network of three ports, including input port 1, 2, 3, connecting for the input port 1 of speed-sensitive switch network and output port 2 or output port 3 is carried out by the height of control signal level, when the output port 2 of speed-sensitive switch network is connected with input port 1, transmit signals to the second antenna, when the output port 3 of speed-sensitive switch network is connected with input port 1, transmit signals to first antenna.The advantage of the invention is that：Switching speed is fast, and can efficiently control the switching time of switch, and contrast high power switching switch designs insertion loss is smaller, improves the efficiency of complete machine.
Description
Technical field
The present invention relates to lift-off technology field in radar, communication, electronic warfare system, and in particular to a kind of dual output timesharing
, can be with the emission system switched over of high speed, high efficiency during work.
Background technology
Emitter is a kind of device for being amplified the faint radio frequency small-signal of certain working frequency and bandwidth, and it amplifies
High-power RF signal launched by antenna assembly, to realize detection to object, ranging, confrontation, interference etc..Hair
The machine device of penetrating mainly includes driving stage amplifying unit, power divider, final stage amplifying unit, power combiner, circulator (or every
From device) etc. device, its principle for be sent into come faint radio frequency small-signal be amplified to certain power by driving stage amplifying unit,
It is divided into N equal portions by power divider, is sent into N number of final amplifier and carries out power amplification, then through power combiner by N number of end
The power of level amplifier output is launched after being synthesized by isolator or circulator by antenna assembly.
Under the application of some occasions, a set of emitter needs to launch to realize spy by two sets of antenna system timesharing
Fixed function.Transmission signal is transmitted to two sets of antenna systems to solve a set of transmitting function timesharing, traditional way is to launch
The High-Power Microwave switch of three ports is added between machine and double antenna, hair is realized by controlling the port of microwave switch to turn on
The signal that machine is penetrated with certain a set of antenna is connected.
In this case, after transmitter power synthesis, high-power signal reaches double by High-Power Microwave switch switching
The purpose of antenna time-sharing work.The effective output of system need to be included in the loss of power synthesis network, high-power switchgear, and it is counted
Calculating formula is：
Eff=(PAmplifying unit power output-PVia net loss power-PPower switch loss power)/PTotal power consumption
When the power output of system is bigger, working frequency is higher, and the loss of High-Power Microwave switch is bigger, works as power output
During up to kilowatt magnitude, High-Power Microwave switching time is often millisecond magnitude, and double days are can not meet under some application scenarios
The time interval requirement of line time-sharing work.
The loss of high-power switchgear switched design is big, switching time is long, power capacity is limited by switch parameter, constrains lose-lose
Go out emitter and realize that transmission signal is widely applied in special time to specific antenna output services mode, therefore, it is necessary to set
Count a kind of dual output emission system of highly efficient high-speed switching.
The content of the invention
The technical problem to be solved of the present invention is to provide that a kind of switching speed is fast, switching time can effectively be controlled
The timesharing dual output emission system of the smaller highly efficient high-speed switching of system, loss.
The present invention solves above-mentioned technical problem using following technical scheme：A kind of timesharing dual output emission system include according to
Driving stage amplifying unit, power divider, final stage amplifying unit, power combiner, first antenna, the second antenna of sequence connection,
Improvement is, speed-sensitive switch network, the speed-sensitive switch are provided between the driving stage amplifying unit and power divider
Network includes signaling switch using GaAs core, and speed-sensitive switch network is the switching network of three ports, including input port
1st, output port 2, output port 3, input port 1 and the output of speed-sensitive switch network are carried out by the height of control signal level
Port 2 or the connection of output port 3, when the output port 2 of speed-sensitive switch network is connected with input port 1, transmission signal
To the second antenna, when the output port 3 of speed-sensitive switch network is connected with input port 1, first antenna is transmitted signals to.
Further, when input port 1 and the output port 2 of speed-sensitive switch network turn on, speed-sensitive switch network it is defeated
Exit port 3 shows the load characteristic with system matches, when the input port 1 of speed-sensitive switch network turns on output port 3,
The output port 2 of speed-sensitive switch network shows the load characteristic with system matches.
As the technical scheme further optimized, the power divider is fixed phase difference distributor, the power combing
Device is fixed phase difference synthesizer, and fixed phase difference distributor and fixed phase difference synthesizer have fixed phase difference, and the phase of the two
Potential difference is identical.
As the technical scheme further optimized, fixed phase difference distributor it is identical with the phase difference of fixed phase difference synthesizer and
Itself and value meet the ゜ of 180 ゜ ± 15.
As the technical scheme further optimized, the signal of the amplitude distribution input port such as fixed phase difference distributor.
As the technical scheme further optimized, the final stage amplifying unit includes two-way, two-way final stage amplifying unit with
The adjacent links of fixed phase difference distributor and fixed phase difference synthesizer have identical phase Insertion Loss within a certain error range.
Specifically, described driving stage amplifying unit output end is connected with the input port 1 of speed-sensitive switch network, open at a high speed
The output port 2 for closing network is connected with the input port 1 of fixed phase difference distributor, and the output port 3 of speed-sensitive switch network is with consolidating
Surely the input port 2 for differing distributor is connected, and the output port 3 of described fixed phase difference distributor and the amplification of first via final stage are single
Member be connected, the output port 4 of fixed phase difference distributor is connected with the second tunnel final stage amplifying unit, first via final stage amplifying unit with
Second tunnel final stage amplifying unit is connected with the input port 5 and input port 6 of fixed phase difference synthesizer respectively, described stationary phase
The output port 7 of poor synthesizer is connected with first antenna, and the output port 8 of fixed phase difference synthesizer is connected with the second antenna.
The advantage of the invention is that：
1. the speed using medium and small signal compound semiconductor switch can reach ns magnitudes, switching speed is fast, and can be with
Efficiently control the switching time of switch.
2. being added based on medium and small signal compound semiconductor switch has the function that the distributor and synthesizer of fixed phase difference, real
The output of existing emitter designated port, contrast high power switching switch designs insertion loss is smaller, improves the efficiency of complete machine.
3. using medium and small signal compound semiconductor switch, circuit is simple, and cost of implementation is low, and reliability is high, long lifespan, easily
In maintenance and repair.
Brief description of the drawings
Fig. 1 is the theory diagram of timesharing dual output emission system of the present invention；
Fig. 2 is speed-sensitive switch Principles of Network block diagram.
Embodiment
The present invention is described in detail below in conjunction with accompanying drawing.
Such as Fig. 1, shown in 2, a kind of timesharing dual output emission system of the present invention includes：Driving stage amplifying unit PA1, open at a high speed
Close network k1, fixed phase difference distributor F1, final stage amplifying unit PA2, PA3, fixed phase difference synthesizer F2, antenna T1, T2.
Driving stage amplifying unit PA1 output ends are connected with speed-sensitive switch network K1 input port 1, speed-sensitive switch network K1
Output port 2 be connected with fixed phase difference distributor F1 input port 1, speed-sensitive switch network K1 output port 3 with it is fixed
Difference distributor F1 2 input ports are connected.
Fixed phase difference distributor F1 will be sent into the signal progress power distribution come, its output port 3 and final stage amplifying unit
PA2 is connected, and F1 output end 4 is connected with final stage amplifying unit PA3.
The microwave signal of final stage amplifying unit PA2, PA3 amplification fixed phase difference distributor F1 distribution, final stage amplifying unit
PA2, PA3 output end are connected with fixed phase difference synthesizer F2 input port 5 and input port 6 respectively.
Fixed phase difference synthesizer F2 is synthesized final stage amplifying unit PA2, PA3 power output, fixed phase difference synthesis
Device F2 output ports 7 are connected with transmitting antenna T1, and fixed phase difference synthesizer F2 output port 8 is connected with transmitting antenna T2.
Fixed phase difference distributor F1 and fixed phase difference synthesizer F2, it is characterized in that, fixed phase difference distributor F1 and stationary phase
Poor synthesizer F2 has fixed phase difference, and the phase difference of the two is identical.Fixed phase difference distributor and fixed phase difference synthesizer
Phase difference sum meet 180 ゜ ± 15 ゜.The signal of the amplitude distribution input ports such as fixed phase difference distributor F1.
Speed-sensitive switch network K1 includes, with the signaling switch that GaAs (GaAs) is core, passing through the height of control signal level
Low to carry out connecting for input port 1 and output port 2 or output port 3, i.e. speed-sensitive switch network K1 is based on medium and small letter
The switching network of number compound semiconductor.
Speed-sensitive switch network K1 realization：When the input port 1 of speed-sensitive switch network turns on output port 2, K1's
Output port 3 shows (to be referred to, in 50 Ω radio systems with the load characteristic of system matches with the load characteristic of system matches
In, port load characteristic is 50 Ω, similar below), when K1 input port 1 turns on output port 3, K1 output port
2 show the load characteristic with system matches.
The course of work of timesharing dual output emission system of the present invention is as follows：
The input signal FR of emitter is amplified by driving stage amplifying unit PA1, is sent into speed-sensitive switch network K1, should
Speed-sensitive switch network K1 switching time is nanosecond rank.When input signal FR enter the design emission system after by
Speed-sensitive switch network K1, needed to realize that different inputs is sent into excitation according to system.
Speed-sensitive switch network K1 by the annexation of TTL low and high level control inputs port 1 and output port 2 and 3, when
When input port 1 turns on output port 2, output port 3 will be connected with matched load, when input port 1 and output port 3 are led
When logical, output port 2 will be connected with matched load.
Fixed phase difference distributor F1 two output ports 3,4 have fixed phase difference, when fixed phase difference distributor F1's
During 1 input radio frequency signal of input port, normalized unit amplitude is equal to 1 ripple, because fixed phase difference distributor F1 is second-class
Point, therefore the amplitude that can be fixed the outgoing wave of difference distributor F1 other each ports is：
P2=0
P3=1/2 (Te+To)
P4=1/2 (Te–To)
Wherein,For the transmission coefficient of even mould；
For the transmission coefficient of strange mould；
The outgoing wave of the output ports 3,4 of fixed phase difference distributor F1 two is passed by final stage amplification module PA2, PA3 amplification
The defeated input port 5,6 to fixed phase difference synthesizer F2, final stage amplification module PA2, PA3 multiplication factor are A, then input port
5th, 6 amplitude P5、P6For：
P5=A/2 (Te+To)
P6=A/2 (Te–To)
When the independent incident RF signal of input port 5, then in fixed phase difference synthesizer F2 other each ports 6,7,8
The amplitude P of outgoing wave6、P7’、P8' be：
P6=0
P7'=P5× (1/2 (Te+To))=A/2 (Te+To) × (1/2 (Te+To))
P8'=P5× (1/2 (Te-To))=A/2 (Te+To)×(1/2(Te-To))
When the independent incident RF signal of input port 6, then in fixed phase difference synthesizer F2 other each ports 5,7,8
The amplitude P of outgoing wave5、P7”、P8" be：
P5=0
P7"=P6× (1/2 (Te-To))=A/2 (Te-To) × (1/2 (Te-To))
P8"=P6× (1/2 (Te+To))=A/2 (Te- To)×(1/2(Te+To))
Therefore, input port 5,6 simultaneously incident RF signal when, then fixed phase difference synthesizer F2 output port 7, input
The amplitude P of the outgoing wave of port 87、P8For：
P7=P7’+P7"=0
P8=P8’+P8"=A
When speed-sensitive switch network K1 output port 2 is connected with input port 1, by the defeated of fixed phase difference synthesizer F2
Exit port 8 transmits signals to antenna T2.
It can similarly release when speed-sensitive switch network K1 output port 3 is connected with input port 1, will be in stationary phase
Poor synthesizer F2 output port 7 transmits signals to antenna T1.
The preferred embodiment of the invention is the foregoing is only, is not intended to limit the invention creation, it is all at this
All any modification, equivalent and improvement made within the spirit and principle of innovation and creation etc., should be included in the invention
Protection domain within.
Claims (4)
1. a kind of timesharing dual output emission system, including sequentially connect driving stage amplifying unit, power divider, final stage amplification
Unit, power combiner, first antenna, the second antenna, it is characterised in that：The driving stage amplifying unit and power divider it
Between be provided with speed-sensitive switch network, the speed-sensitive switch network includes the signaling switch using GaAs core, and speed-sensitive switch net
Network is the switching network of three ports, including input port 1, output port 2, output port 3 pass through the height of control signal level
Carry out input port 1 and the output port 2 of speed-sensitive switch network or connecting for output port 3, the output of speed-sensitive switch network
When port 2 is connected with input port 1, the second antenna is transmitted signals to, when the output port 3 and input of speed-sensitive switch network
When mouth 1 is connected, first antenna is transmitted signals to；
The power divider is fixed phase difference distributor, and the power combiner is fixed phase difference synthesizer, stationary phase difference
Orchestration and fixed phase difference synthesizer have fixed phase difference, and the phase difference of the two is identical；
Fixed phase difference distributor it is identical with the phase difference of fixed phase difference synthesizer and itself and meet 180 ゜ ± 15 ゜；
The signal of the amplitude distribution input port such as fixed phase difference distributor.
2. timesharing dual output emission system according to claim 1, it is characterised in that：When the input of speed-sensitive switch network
When mouth 1 turns on output port 2, the output port 3 of speed-sensitive switch network shows the load characteristic with system matches, when at a high speed
When the input port 1 of switching network turns on output port 3, the output port 2 of speed-sensitive switch network shows and system matches
Load characteristic.
3. timesharing dual output emission system according to claim 1, it is characterised in that：The final stage amplifying unit includes two
Road, two-way final stage amplifying unit is with the adjacent links of fixed phase difference distributor and fixed phase difference synthesizer within a certain error range
With identical phase Insertion Loss.
4. timesharing dual output emission system according to claim 3, it is characterised in that：Described driving stage amplifying unit is defeated
Go out end with the input port 1 of speed-sensitive switch network to be connected, the output port 2 of speed-sensitive switch network is defeated with fixed phase difference distributor
Inbound port 1 is connected, and the output port 3 of speed-sensitive switch network is connected with the input port 2 of fixed phase difference distributor, described fixation
The output port 3 of difference distributor is connected with first via final stage amplifying unit, the output port 4 and second of fixed phase difference distributor
Road final stage amplifying unit is connected, first via final stage amplifying unit and the second tunnel final stage amplifying unit respectively with fixed phase difference synthesizer
Input port 5 be connected with input port 6, the output port 7 of described fixed phase difference synthesizer is connected with first antenna, fixed
The output port 8 of difference synthesizer is connected with the second antenna.
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| CN201510391370.7A CN104954028B (en) | 2015-07-02 | 2015-07-02 | A kind of timesharing dual output emission system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110635810B (en) * | 2018-06-22 | 2021-06-25 | 中国电子科技集团公司第二十九研究所 | Four-channel-to-one high-power transmitting system and channel hot switching method and application thereof |
| CN109347497B (en) * | 2018-11-30 | 2021-08-06 | 四川九洲电器集团有限责任公司 | Dual-channel transmitter based on sum-difference device |
| CN113507290B (en) * | 2021-07-06 | 2022-12-09 | 中国电子科技集团公司第三十八研究所 | Bidirectional multi-polarization mode transceiving system and transceiving method thereof |
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| CN203630355U (en) * | 2013-11-22 | 2014-06-04 | 西安天和防务技术股份有限公司 | All solid-state multi-path synthetic microwave power radar transmitter |
| CN104704913A (en) * | 2012-10-03 | 2015-06-10 | 三菱电机株式会社 | Electromagnetic transmission device, power amplification device, and electromagnetic transmission system |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2008064371A2 (en) * | 2006-11-03 | 2008-05-29 | Rf Magic, Inc. | Satellite signal frequency translation and stacking |
| CN101916992A (en) * | 2010-07-28 | 2010-12-15 | 锐迪科创微电子（北京）有限公司 | pHEMT (pseudomorphic High Electron Mobility Transistor) radio frequency switch ESD (Electrostatic Discharge) protection device and radio frequency front end module including same |
| CN202261183U (en) * | 2011-10-14 | 2012-05-30 | 四川九洲电器集团有限责任公司 | Radio frequency power attenuation circuit |
| CN104704913A (en) * | 2012-10-03 | 2015-06-10 | 三菱电机株式会社 | Electromagnetic transmission device, power amplification device, and electromagnetic transmission system |
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