CN101895262B - Millimeter waveband signal power amplification and synthesis method - Google Patents
Millimeter waveband signal power amplification and synthesis method Download PDFInfo
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- CN101895262B CN101895262B CN 201010230657 CN201010230657A CN101895262B CN 101895262 B CN101895262 B CN 101895262B CN 201010230657 CN201010230657 CN 201010230657 CN 201010230657 A CN201010230657 A CN 201010230657A CN 101895262 B CN101895262 B CN 101895262B
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Abstract
The invention relates to a millimeter waveband signal power amplification and synthesis method. In a power distribution and power synthesis multiplex network formed by utilizing a special phase relation that a coupling port of a millimeter wave 3dB waveguide slot bridge is 90 degrees backward than a straight-through port, two millimeter wave oscillators form two injection locking power amplifying circuits; a path of millimeter waveband small-power signals are injected to the waveguide slot bridge, and are subjected to power distribution to form two paths of millimeter waveband small-power signals with equal amplitude and 90-degree phase difference for output; the two injection locking power amplifying circuits respectively perform lock-in amplification on the two paths of millimeter waveband small-power signals; and the power signals subjected to lock-in amplification are subjected to power synthesis through the waveguide slot bridge to form millimeter wave high-power signals with the same phase as the power signals subjected to injection lock-in amplification. Two circulators and a millimeter wave power distribution/power synthesis network are reduced, so the equipment amount, volume and weight of a millimeter waveband injection lock-in amplifier power synthesis system are greatly reduced.
Description
Technical field
The invention belongs to microwave technical field, relate to the microwave signal power amplification with synthetic, specifically a kind ofly realize that based on millimere-wave band 3dB kinds of Slot Coupled Waveguide Hybrids millimeter waveband signal power amplifies and synthetic method.Be a kind of volume, weight, equipment amount that can effectively reduce amplifier and power synthetic system, reduce debugging difficulty and the cost of power synthetic system, improve the practical approach that millimere-wave band is annotated latching amplifier power synthetic system performance.
Technical background
Millimeter-wave technology is widely used in the fields such as guided missile precise guidance, radar and secure communication.Power amplifier is the critical component of millimeter-wave systems, and the size of its power output has directly determined the indexs such as power, antijamming capability and communication quality of system.Millimere-wave band is particularly at the W wave band and with super band, because the characteristic of semi-conducting material causes the power output of the solid-state Millimeter-Wave Source of individual devices smaller, single-tube oscillator usually is difficult to satisfy the high power solid state millimeter-wave systems to the requirement of transmitting power, the most effectual way that solves millimeter wave frequency band power output deficiency is exactly power synthetic technique, will guarantee simultaneously the coherent of system.
Traditional injection locking amplification method is that the above millimere-wave band of W wave band realizes the main method that signal power is amplified, formed by a three-port circulator and a millimeter wave oscillation source, during work, the millimeter wave low-power level signal is injected the millimeter wave oscillation source with larger power output by circulator, export through circulator after its relatively high power output signal is locked.Its concrete methods of realizing is as shown in Fig. 1 (a), and low-power level signal is as shown in Fig. 1 (b), from the port I input of circulator 1, through injecting millimetre-wave generator 2 by port II after circulator 1.This oscillator can produce relatively high power millimeter wave free oscillation frequency signal as shown in Fig. 1 (C).Make the free oscillation frequency of millimetre-wave generator 2 wide less than the notes lock strap of millimetre-wave generator with the absolute frequency deviation of injecting low-power level signal by design and adjusting, to satisfy the injection locking frequency requirement of oscillator.Regulate the power requirement that the power that injects low-power level signal satisfies oscillator injection locking.When frequency departure and injecting power meet the demands simultaneously, the low-power level signal institute that the free oscillation frequency of millimetre-wave generator 2 can be injected by the port I of circulator 1 is synchronous, this phenomenon is called injection locking, blocked high-power signal such as Fig. 1 (d) export from the port III of circulator 1, frequency is identical with the injection low-power level signal, thereby realizes injecting the amplification of small-signal.
Tradition millimeter wave power splitter adopts waveguide E-T branch or H-T branch to form as shown in Fig. 2 (a) more, when voltage amplitude shown in Fig. 2 (b) when being 1 millimeter-wave signal by the port I input of power divider 3, it is that shown in same frequency, Fig. 2 (c) and Fig. 2 (d) of 1/ √ 2, same-phase signal is exported that port II and port III all have voltage amplitude.Be used for the power building-up process opposite with power division.
Traditional millimere-wave band injection locking power amplifier synthetic method is with the said two devices combination, add that at output comprise network is as shown in Fig. 3 (a), it is to be that 1 millimeter wave low-power level signal is realized power division through power distributing network 4 with amplitude shown in Fig. 3 (b), and merit divides later two-way millimeter wave low-power level signal by circulator 5 and the 6 larger millimeter wave oscillation sources 7 and 8 that inject power outputs, it to be locked respectively as shown in Fig. 3 (c), Fig. 3 (d).Locking later relatively high power millimeter-wave signal exports through circulator 5 and 6 separately respectively as shown in Fig. 3 (e), Fig. 3 (f), and then carry out power by millimeter wave power comprise network 9 and synthesize, thereby obtain needed synthetic power signal as shown in Fig. 3 (g).The power that traditional millimere-wave band power synthetic method is successfully applied to millimere-wave band injection locking power amplifier synthesizes, but shortcoming obviously as equipment complexity, volume, weight is large, cost is high, the system debug difficulty is large, is unfavorable for system's miniaturization and low cost etc.
Summary of the invention
the technical problem to be solved in the present invention is: for traditional millimere-wave band injection locking power amplification and synthetic method in system bulk, weight, the weak point that the aspect such as cost and debugging difficulty exists, propose a kind of millimeter wave 3dB kinds of Slot Coupled Waveguide Hybrids that utilizes and realize power division and the synthetic injection locking power amplification of novel millimeter wave section and synthetic method, multiplexing with millimeter wave 3dB kinds of Slot Coupled Waveguide Hybrids millimere-wave band low-power level signal input Power Distribution network and high-power output signal power comprise network, saved the power division network in traditional millimere-wave band injection locking power amplification and synthetic method, two circulators and comprise network.Thereby realize reducing millimere-wave band injection locking power amplifier synthesis system volume, weight and equipment amount, improve and amplify bandwidth, improve the purpose of synthetic power stage flatness, reduced and realized cost and circuit debugging difficulty.
The technical scheme of dealing with problems that the present invention adopts is: utilize millimeter wave 3dB kinds of Slot Coupled Waveguide Hybrids coupling port than the specific phase relation of backward 90 ° of straight-through port, the millimeter wave 3dB kinds of Slot Coupled Waveguide Hybrids power division of formation and power synthesize multiplexed network.the synthetic multiplexed network of described millimeter wave 3dB kinds of Slot Coupled Waveguide Hybrids power division and power is measure-alike by two, rectangular waveguide that have public narrow wall consists of, its coupling mechanism is the continuous coupled seam on common wall, because the effect of coupling slot has formed coupling port than the phase relation of 90 ° of the backwardnesss of straight-through port and the amplitude relation of decile output, utilize two millimetre-wave generators to consist of two injection locking power amplifier circuits, one road millimeter wave low-power level signal is directly injected millimeter wave 3dB kinds of Slot Coupled Waveguide Hybrids power division and the synthetic multiplexed network of power, forming later on the two-way amplitude through power division equates, the millimere-wave band low-power level signal output that the phase phasic difference is 90 °, respectively two-way millimere-wave band low-power level signal is locked amplification by two injection locking power amplifier circuits, the power signal that amplifies through injection locking carries out power through the synthetic multiplexed network of millimeter wave 3dB kinds of Slot Coupled Waveguide Hybrids power division and power again and synthesizes, form the millimeter wave high-power signal of one tunnel power signal homophase that amplifies with injection locking, thereby realize simultaneously power amplification and the power of the millimere-wave band low-power level signal that injects synthetic.
The beneficial effect that the present invention has compared with prior art is:
(1) before millimere-wave band injection locking power amplifier synthetic method proposed by the invention utilizes a millimeter waveguide crack electric bridge to realize amplifying with multiplex mode small signal power distribute and amplify after the power of large-signal synthetic, thereby the high efficiency power of having realized two-way millimere-wave band injection locking power amplifier is synthetic, has improved power output.
Two inputs when (2) millimere-wave band injection locking power amplifier synthetic method proposed by the invention utilizes isolation characteristic between each port of electric bridge of millimeter waveguide crack to guarantee that power is synthetic, two outputs and input and output interchannel have certain buffer action, thereby have substituted the effect of circulator in traditional millimere-wave band injection locking power amplifier.Reduce two circulators and a millimeter wave power distribution/power synthesis network with respect to traditional two-way millimere-wave band injection locking power amplifier synthetic schemes, thereby reduced widely equipment amount, the volume and weight of millimere-wave band injection locking power amplifier synthesis system.
(3) utilize the present invention by to two-way millimere-wave band injection locking power amplifier free oscillation frequency point is carried out irregular design, and the injection locking frequency bandwidth is carried out accurate design can improve the synthetic power stage amplitude of millimere-wave band injection locking power amplifier in wider frequency band flatness.
The present invention meets the demand for development of millimere-wave band power amplification and synthetic technology, is applicable to the phase parameter millimeter wave emission system and realizes 2 the road or 2
NInjection locking power amplifier in road is synthetic.Also can be applied in the power synthetic system of submillimeter wave or other frequency range Injection-Locked Amplifier.The power of realizing high-power, high efficiency, broadband, low cost, small size weight is synthetic.
Description of drawings
Fig. 1 (a) is traditional millimere-wave band injection locking power amplifier schematic diagram, and Fig. 1 (b) is the small-power Injection Signal, Fig. 1 (C) oscillator free oscillation frequency signal, and Fig. 1 (d) is high-power output signal
Fig. 2 (a) is the functional schematic of traditional millimeter waveguide power distributing network, and Fig. 2 (b) is the input high-power signal,
The same-phase of output shown in Fig. 2 (c) and Fig. 2 (d) low-power level signal
The traditional millimere-wave band injection locking of Fig. 3 (a) power amplifier synthetic method schematic diagram, Fig. 3 (b) is depicted as the injection low-power level signal, Fig. 3 (c) and Fig. 3 (d) be the low-power level signal after dividing for merit, Fig. 3 (e) and Fig. 3 (f) are depicted as the relatively high power millimeter-wave signal after locking, and Fig. 3 (g) is the great achievement power signal of output
Fig. 4 is 3dB kinds of Slot Coupled Waveguide Hybrids structural representation
Fig. 5 (a) millimeter waveband signal power of the present invention amplifies and the synthetic method schematic diagram, millimere-wave band low-power level signal shown in Fig. 5 (b), low-power level signal after Fig. 5 (c) and Fig. 5 (d) are depicted as merit and divide, Fig. 5 (e) and Fig. 5 (f) are depicted as the high-power signal after locking, the high-power signal after synthesizing shown in Fig. 5 (g)
Embodiment
In traditional millimere-wave band injection locking power amplifier, the effect of circulator 6 is the one-way transmissions that guarantee millimeter-wave signal, provides a passage for output signal simultaneously.As shown in Figure 4,3dB kinds of Slot Coupled Waveguide Hybrids power distributing network is measure-alike by two, rectangular waveguide that have public narrow wall consists of, and its coupling mechanism is the continuous coupled seam on common wall.Because the effect of coupling slot has formed coupling port than the phase relation of 90 ° of the backwardnesss of straight-through port and the amplitude relation of decile output.Determined that thus it can be used for realizing the signal one-way transmission function of circulator, has also guaranteed the uniqueness of synthetic rear output signal channel.
Specific implementation method of the present invention is implemented hardware of the present invention and is consisted of and comprise a 3dB kinds of Slot Coupled Waveguide Hybrids 10 and two millimetre-wave generators 11 and 12 as shown in Fig. 5 (a).Utilize 3dB kinds of Slot Coupled Waveguide Hybrids coupling port than the specific phase relational implementation of backward 90 ° of straight-through port the one-way transmission of signal, saved waveguide junction circulator and a power division network in traditional millimere-wave band injection locking power amplifier synthetic method.Method of the present invention is millimere-wave band low-power level signal shown in Fig. 5 (b) directly to be injected the port I of millimere-wave band 3dB kinds of Slot Coupled Waveguide Hybrids 10, and this moment, the equivalence of 3dB kinds of Slot Coupled Waveguide Hybrids was a traditional power distributing network.According to the characteristic of 90 ° of minute power such as 10 liang of output signal port II of 3dB kinds of Slot Coupled Waveguide Hybrids and III, phase difference, when low-power level signal shown in Fig. 5 (b) through after power division at output port II with port III forms as Fig. 5 (c) and the amplitude as shown in Fig. 5 (d) is equal, the millimere-wave band low-power level signal of 90 ° of phasic differences is mutually exported.Respectively connect the millimere-wave band oscillation source 11 and 12 of two at output port II and port III, consist of two injection locking power amplifier circuits and by low-power level signal, it locked respectively.The present invention makes two millimere-wave band oscillation source free oscillation frequencies close by two-way millimere-wave band injection locking power amplifier free oscillation frequency point is carried out irregular design, and keeps certain frequency departure (namely 3 ‰＜frequency departure＜5 ‰ are better).And the injection locking frequency bandwidth of two-way millimere-wave band injection locking power amplifier is carried out staggered designs, and two millimere-wave band oscillation source injection locking bandwidth being interlocked come, a retaining part injection locking bandwidth is overlapping.Two millimere-wave band oscillation sources are annotated the lock power output comparatively near (the unbalanced power degree is less than 5%).Just can expand the injection locking frequency bandwidth by above design, and improve the flatness of the synthetic power stage amplitude of millimere-wave band injection locking power amplifier in whole injection locking frequency band.Between 3dB kinds of Slot Coupled Waveguide Hybrids port II and port III, good isolation characteristic has guaranteed the independence of two oscillation source work, utilize thus the design feature of crack electric bridge self to play the signal one-way transmission function of circulator, thereby saved two circulators in circuit.Characteristic according to the 3dB kinds of Slot Coupled Waveguide Hybrids, amplify later millimere-wave band relatively high power signal as shown in Fig. 5 (e), Fig. 5 (f) through injection locking, Fig. 5 (e), Fig. 5 (f) locking amplifying power signal to carry out power through same millimeter wave 3dB kinds of Slot Coupled Waveguide Hybrids more synthetic, at the millimeter wave high-power signal of port IV output and locking amplifying power signal homophase as shown in Fig. 5 (g).This moment, the electric bridge equivalence was a traditional power synthesis network, had realized the multiplexing of power division and network power comprise network.Owing to not exporting because single spin-echo has signal at port I, guaranteed the one-way transmission of power composite signal.After synthetic, power output has improved 3dB than single millimere-wave band oscillation source power output, has effectively realized injecting the power amplification of low-power level signal.
The foregoing description of the present embodiment and accompanying drawing have represented preferred version of the present invention, those skilled in the art can carry out according to different designing requirements and design parameter variously augmenting, improving and change within not departing from the scope that claim of the present invention defines, therefore, the present invention is widely.
Claims (3)
1. a millimeter waveband signal power amplifies and synthetic method, it is characterized in that: utilize millimeter wave 3dB kinds of Slot Coupled Waveguide Hybrids coupling port than the specific phase relation of backward 90 ° of straight-through port, the millimeter wave 3dB kinds of Slot Coupled Waveguide Hybrids power division of formation and power synthesize multiplexed network.the synthetic multiplexed network of described millimeter wave 3dB kinds of Slot Coupled Waveguide Hybrids power division and power is measure-alike by two, rectangular waveguide that have public narrow wall consists of, its coupling mechanism is the continuous coupled seam on common wall, because the effect of coupling slot has formed coupling port than the phase relation of 90 ° of the backwardnesss of straight-through port and the amplitude relation of decile output, utilize two millimetre-wave generators to consist of two injection locking power amplifier circuits, one road millimeter wave low-power level signal is directly injected millimeter wave 3dB kinds of Slot Coupled Waveguide Hybrids power division and the synthetic multiplexed network of power, forming later on the two-way amplitude through power division equates, the millimere-wave band low-power level signal output that the phase phasic difference is 90 °, respectively two-way millimere-wave band low-power level signal is locked amplification by two injection locking power amplifier circuits, the power signal that amplifies through injection locking carries out power through the synthetic multiplexed network of millimeter wave 3dB kinds of Slot Coupled Waveguide Hybrids power division and power again and synthesizes, form the millimeter wave high-power signal of one tunnel power signal homophase that amplifies with injection locking, thereby realize simultaneously power amplification and the power of the millimere-wave band low-power level signal that injects synthetic.
2. millimeter waveband signal power according to claim 1 amplifies and synthetic method, it is characterized in that: utilize the isolation characteristic between each port that millimeter wave 3dB kinds of Slot Coupled Waveguide Hybrids coupling port consists of than the phase relation of backward 90 ° of straight-through port, two inputs that power is synthetic and the isolation of two output channels realize signal one-way transmission function.
3. millimeter waveband signal power according to claim 1 amplifies and synthetic method, it is characterized in that: carry out irregular design and the injection locking frequency bandwidth carries out staggered designs by the free oscillation frequency point to the two-way millimetre-wave generator, make the frequency of oscillation of two millimetre-wave generators close and keep deviation; The injection locking bandwidth of two millimetre-wave generators is staggered and retaining part overlapping; Thereby the injection locking frequency bandwidth of expansion millimere-wave band injection locking power amplification synthesis system, when the power output size of two-way millimetre-wave generator near the time, can improve the flatness of synthetic power stage amplitude in the injection locking bandwidth.
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| GB201200219D0 (en) * | 2012-01-09 | 2012-02-22 | Calder Martin | A clock signal generator for a digital circuit |
| CN103929158B (en) * | 2014-04-24 | 2017-01-18 | 南京信息工程大学 | W-waveband pulse traveling-wave tube high-power combination system |
| CN106061093B (en) * | 2016-08-04 | 2019-08-23 | 同方威视技术股份有限公司 | Wave guide system and electron linear accelerator for electron linear accelerator |
| CN107592085B (en) * | 2017-09-18 | 2018-09-07 | 深圳锐越微技术有限公司 | Power amplifier and electronic equipment |
| CN110601661B (en) * | 2019-09-06 | 2023-03-24 | 电子科技大学 | CMOS millimeter wave active quasi-circulator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4333076A (en) * | 1979-06-12 | 1982-06-01 | Thomson-Csf | Ultra-high frequency simultaneous transmission and reception head, millimeter wave transmitter - receiver and radar using such a head |
| US5304944A (en) * | 1992-10-09 | 1994-04-19 | Hughes Aircraft Company | High frequency linearizer |
| JP2005020077A (en) * | 2003-06-23 | 2005-01-20 | Oki Electric Ind Co Ltd | 90 degree bent waveguide, waveguide filter element, and high frequency circuit unit |
| CN101562268A (en) * | 2008-04-16 | 2009-10-21 | 中国科学院电子学研究所 | Multiple waveguide output structure for gyrotron amplifier |
| CN101587977A (en) * | 2009-04-21 | 2009-11-25 | 北京华大智宝电子系统有限公司 | The slab guide sum-difference network |
-
2010
- 2010-07-16 CN CN 201010230657 patent/CN101895262B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4333076A (en) * | 1979-06-12 | 1982-06-01 | Thomson-Csf | Ultra-high frequency simultaneous transmission and reception head, millimeter wave transmitter - receiver and radar using such a head |
| US5304944A (en) * | 1992-10-09 | 1994-04-19 | Hughes Aircraft Company | High frequency linearizer |
| JP2005020077A (en) * | 2003-06-23 | 2005-01-20 | Oki Electric Ind Co Ltd | 90 degree bent waveguide, waveguide filter element, and high frequency circuit unit |
| CN101562268A (en) * | 2008-04-16 | 2009-10-21 | 中国科学院电子学研究所 | Multiple waveguide output structure for gyrotron amplifier |
| CN101587977A (en) * | 2009-04-21 | 2009-11-25 | 北京华大智宝电子系统有限公司 | The slab guide sum-difference network |
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