CN203839499U - High power wide spectrum 1/4 wavelength switch oscillator - Google Patents
High power wide spectrum 1/4 wavelength switch oscillator Download PDFInfo
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- CN203839499U CN203839499U CN201420201708.9U CN201420201708U CN203839499U CN 203839499 U CN203839499 U CN 203839499U CN 201420201708 U CN201420201708 U CN 201420201708U CN 203839499 U CN203839499 U CN 203839499U
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- 238000001228 spectrum Methods 0.000 title abstract description 13
- 230000008878 coupling Effects 0.000 claims abstract description 16
- 238000010168 coupling process Methods 0.000 claims abstract description 16
- 238000005859 coupling reaction Methods 0.000 claims abstract description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 22
- 230000005855 radiation Effects 0.000 abstract description 3
- 238000009510 drug design Methods 0.000 abstract 1
- 230000010355 oscillation Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 230000005684 electric field Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Abstract
The utility model discloses a high power wide spectrum 1/4 wavelength switch oscillator which is composed of an annular switch, a 1/4 wavelength coaxial oscillating cavity and a coupler. Through the special design of the characteristic impedance of the 1/4 wavelength oscillator, the switch, a microwave output form, and the feed type and the structure of a high voltage pulse, high power wide spectrum microwave oscillation is generated. The coupler is fed to an antenna, and high power wide spectrum microwave radiation is generated in a space through the antenna radiation. According to the utility model, a coaxial coupling output structure is used; charging voltage can be prevented from being directly applied to the antenna, which reduces the design difficulty of the capacity of the antenna power; through the rational design of the coupler, the Q value of a resonator can be adjusted; in a coaxial direct feed mode, a charging inner rod can be used as a switch electrode; when the switch is switched on, a resonant cavity is closed; the problem of microwave leakage, which is caused by the fact that the international similar wide spectrum resonator is charged from side, is avoided; and the structure is simple and compact.
Description
Technical field
The utility model relates to High-Power Microwave technical field, specifically refers to a kind of high power wide range quarter-wave switching oscillator.
Background technology
From the effect angle of High-Power Microwave, narrow spectrum HPM and super wide range HPM respectively have feature: narrow spectrum High-Power Microwave spectral power density is high, only has very good effect for the effect target of known work frequency; And super wide range microwave can completely cover the effect target of unknown operating frequency or variable frequency work, but power density is less, and effect threshold value needs very high instantaneous power.The comparison of, inferior position excellent for above narrow spectrum and super wide range microwave, has proposed between narrow spectrum and super wide range, and has taken into account the wide range High-Power Microwave concept of both advantages just.Fig. 1 is the coupling coefficient curve of typical effect thing inside and four direction illumination plane wave, can find out, coupling coefficient is greater than within the scope of 1GHz all smaller in frequency, and it is all higher in 100MHz-800MHz frequency range, in figure, also provide the spectrum distribution of three kinds of electromagnetic pulses, wherein wide range microwave has not only covered the higher region of coupling coefficient, and has higher Spectral power density.
High power wide range quarter-wave switching oscillator is used for producing high power wide range microwave, and it is made up of coaxially vibrate chamber, coupler of ring switch, quarter-wave.Wherein ring switch is between coaxial inner core and urceolus, the inner core one termination high-voltage pulse of ring switch, coaxially the shake inner core in chamber of a termination quarter-wave; The quarter-wave chamber that coaxially vibrates is designed to low impedance structure, is used for realizing the storage to feed-in high-power energy; Coupler is between coaxial vibration chamber and output coaxial cable, and its effect is to regulate coaxially the vibrate Q value in chamber of quarter-wave, and isolated high-voltage charging pulse is directly added on radiating antenna.
Domestic and international similar technology belongs to conceptual design more at present, produces power lower, and switch is single-point conducting, adopt in the charging of vibration side, chamber more, vibration chamber and coaxial output line are directly connected, and when charging, high voltage is carried on antenna and feeder line simultaneously, are unfavorable for the power capacity design of antenna.
Utility model content
The purpose of this utility model is to provide a kind of high power wide range quarter-wave switching oscillator, while solving the charging of current traditional wide range resonator side in the world and charging, antenna also loads a difficult problem for high pressure simultaneously, having realized output pulse bandwidth can control by design coupler coupling coefficient, can realize the output of high power wide range microwave
The technical solution adopted in the utility model: a kind of high power wide range quarter-wave switching oscillator, is made up of coaxially vibrate chamber and coupler of ring switch, quarter-wave; Described ring switch inside is provided with a coaxial inner core, and described coaxial inner core one end is connected with pulse power supply coaxial configuration, and the other end connects the coaxle input end in quarter-wave vibration chamber; In described coupler, be provided with the coaxial inner core of coupling, one end of the coaxial inner core that is coupled connects the coaxial output line in quarter-wave vibration chamber, and the other end is coupling output.
In technique scheme, the input of described coaxial inner core is provided with several tie points, is provided with sealing ring and annular sheet metal on each tie point.
In technique scheme, described ring switch and the quarter-wave junction, chamber that coaxially vibrates is provided with trip bolt, and the position of described trip bolt is adjustable.
In technique scheme, the shell of described coupler is pyramidal structure.
In technique scheme, in described coupler, be provided with lumped capacitance, described lumped capacitance is arranged on coupling coaxial inner core and quarter-wave and coaxially vibrates between the output in chamber.
In technique scheme, coaxially the vibrate inside of chamber and coupler of described ring switch, quarter-wave is seal chamber, and communicates between cavity, and chamber is filled with High-Voltage Insulation nitrogen.
In technique scheme, coaxially the vibrate input in chamber and the position of output of described quarter-wave is coaxially and is horizontally disposed with.
In this programme, high power wide range oscillator can be operated in 200MHz～800MHz, from the high power pulse of left side feed-in, to coaxially vibrate chamber charging of quarter-wave, when design is charged to crest voltage, ring switch conducting, producing a step pulse propagates to coupler end, through coupler and ring switch reflect to form back and forth resonance, by the wideband pulse of coupler and coaxial output line output attenuatoin vibration, last oscillating impulse is fed into aerial radiation by coaxial transmission line simultaneously.Produce the pluses and minuses that exist according to the similar technology of domestic and international colleague, the technology path that has adopted coaxial feed-in, multi-channel switch conducting and coupling to export in order to realize high power wide range microwave.Similar technology path adopted the mode that side feedback, single channel switch are directly connected with antenna with coaxial resonant cavity more in the past.The wide range microwave that this technology path is applicable to lower-wattage produces, and in the time that power improves, side charging feed-in mouth must be opened larger size, otherwise can produce high voltage arc.But larger feed-in mouth, can produce wide range microwave leakage; Larger feed-in mouth can affect switch Electric Field Distribution simultaneously, is unfavorable for the stable conducting of switch; The passage inductance that switch single-point conducting meeting generation is larger and resistance are unfavorable for the generation of upper frequency wide range microwave; Coaxial resonant cavity is directly connected with antenna, and charging voltage is directly added on antenna, is unfavorable for the insulating Design of antenna.In order to solve the generation of high power wide range microwave, overall system design adopts coaxial feed-in, and the coaxial inner core of feed-in is as the high-field electrode of ring switch.The conducting of design multi-channel switch, is convenient to reduce channel switch inductance and increases resonant cavity energy storage; The coupler design that adopts lumped capacitance and distributed inductance phase structure, the high pressure that prevents from charging is directly added on antenna, alleviates the insulating Design difficulty of antenna.Between resonant cavity and antenna, introduce coupler, can, in the case of the impedance of maintenance coaxial resonator and antenna is fixing, can, by the scattering coefficient of design coupler, obtain the wide range microwave of different bandwidth.
In this programme, ring switch is designed to coaxial configuration, and the switch inner core left side connects high-voltage charging bar, and the right connects quarter-wave vibration chamber.In the time that charging voltage rises to certain amplitude, the electrode circlewise of ring switch and the conducting of coaxial inner core high-field electrode, the structure of ring switch ensures to realize multichannel conducting.Can ensure the concentricity of ring switch by retrofit and installation.In switch cavity, fill anticyclonic insulation nitrogen, adopt nitrogen to be conducive to the conducting voltage of switch with higher repetition operation and increase ring switch.By adjustable pressure and switching space, can realize good multichannel conducting, multichannel conducting can reduce switched inductors, is beneficial to oscillator and is operated in higher frequency.Another of ring switch be when oscillator produce vibration after, the less interval producing after switch conduction can block vibration microwave leak into clock one end left, be conducive to improve wide range Efficiency.
In this programme, adopt the design of Low ESR quarter-wave coaxial transmission line, consider the conducting inductance of ring switch and the end effect of coaxial configuration, the physical length of coaxial resonator will be slightly smaller than the length of 1/4th wide range microwave centre frequency corresponding wavelength.When design the electric capacity of coaxial resonant cavity will with the design that matches of the output capacitance of pulse power supply, to reaching higher charge efficiency; In the time of the characteristic impedance design of coaxial resonant cavity, also to consider power capacity and the Electric Field Distribution in chamber.Require in resonant cavity not produce electrion, require electric field strength in resonant cavity will be significantly less than the electric field strength at ring switch place, to guarantee that conducting discharge generation is in switch place simultaneously.In coaxial resonant cavity, adopt gases at high pressure insulation, resonant cavity communicates with ring switch chamber.
In this programme, coupler adopts lumped capacitance and distributed inductance scheme designed in conjunction, and lumped capacitance is provided by insulating material medium block, and distributed inductance is provided by urceolus and the inner core of taper coaxial configuration.Utilize the characteristic of electric capacity high pass and inductance low pass, according to produced wide range microwave frequency and bandwidth requirement, the structural parameters of optimal design lumped capacitance and distributed inductance.Can be in desired bandwidth, realize comparatively smooth coupling output, produce larger inhibitory action for the low frequency beyond bandwidth simultaneously.
In sum, owing to having adopted technique scheme, the beneficial effects of the utility model are: switching oscillator Low ESR of the present utility model, resonant charging efficiency be high, adopt annular multi-channel switch design, to reduce switch conduction inductance and resistance, make resonator can vibrate at upper frequency, adopt coaxial coupling-out structure, can block charging voltage and directly be added to antenna, thus the design difficulty of reduction antenna power capacity; Simultaneously by can regulate the Q value of resonator to the appropriate design of coupler; Adopt coaxial straight feedback mode, the interior bar that makes to charge can be simultaneously as the electrode of switch, switch conduction is simultaneously by resonant cavity sealing, avoided in the world similar wide range resonator to charge from the side and caused the deficiency of microwave from leakage, the more simple compactness of structure.High power capacity design is required to combine with the Low ESR of resonator, optimized chamber internal electric field and distributed, can realize the wide range vibration repetition pulse output of higher-wattage, and stable operation in application experiment.
Brief description of the drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is output wide range impulse waveform;
Fig. 3 is output wide range pulse frequency spectrum;
Fig. 4 is S21 curve;
Fig. 5 is oscillator output voltage waveforms.
Embodiment
Disclosed all features in this specification, or step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
As Fig. 1, switching oscillator described in the utility model mainly comprises three parts, be ring switch, quarter-wave coaxial resonant cavity and coupler, the shell cavity of ring switch links together by fastening bolt 5 and the same shaft housing 1 of pulse power supply, in order to isolate the cavity in pulse power supply and ring switch, between is provided with an insulating supporting 4, between insulating supporting 4 and shell, be provided with again sealing ring 3, thoroughly realize the gas barrier in pulse power supply and ring switch chamber simultaneously; Adopt coaxial configuration inner core 2 with being connected of pulse power supply simultaneously, and be connected with the coaxial inner core of ring switch, the junction of the coaxial inner core of ring switch is provided with several tie points, on each tie point, be provided with annular sheet metal 6 and sealing ring 7, the effect of annular sheet metal 6 is while guaranteeing rotating coaxial inner core screw rod, can not be with dynamic seal ring 7 to rotate simultaneously, so that really what sealing ring 7 can be not damaged, and sealing ring 7 is to realize air seal isolation between pulse power supply feed side and ring switch chamber, prevent that gases at high pressure are leaked to pulse power supply one side; Between ring switch and quarter-wave coaxial resonant cavity, be provided with trip bolt 8, its function is the ring switch ground electrode 9 that connects annular switch cavity coaxial urceolus and different switch radiuses, realizes the adjusting of ring switch spacing; Ring switch ground electrode 9 is arranged between the urceolus 10 and inner core 11 of quarter-wave coaxial resonant cavity, the urceolus 10 of quarter-wave coaxial resonant cavity is connected with coupler by fastening screw select 14, be provided with sealing ring 13 in junction, be used for realizing the air seal of resonant cavity and the coaxial urceolus of coupler junction; At the delivery outlet of quarter-wave coaxial resonant cavity, lumped capacitance 12 is set, bears outside the function of wide range microwave coupling output that realizes resonator generation, also there is insulating supporting and realize the concentric effect of ring switch; In lumped capacitance 12, be provided with the coaxial inner core 15 of coupler, its function is to realize the distributed inductance of composition coupler together with coupler urceolus 16, and distributed inductance is realized the function of wide range microwave coupling output together with lumped capacitance; The urceolus 16 of coupler is pyramidal structure, the output of coupler is provided with insulating supporting 17, its function is that the coaxial configuration of realizing coupler supports and realizes the gas barrier between coupler and antenna-feedback system, prevents that high pressure gas leakage in resonant cavity is in antenna-feedback system.
In the utility model, pass through the optimal design to oscillator character impedance and coupler, can obtain larger power generation efficiency, the wide range waveform producing and frequency spectrum are as shown in Figures 2 and 3, Fig. 2 is the wide range pulse voltage waveform producing when charging voltage 1V in simulation, waveform is the oscillating impulse of amplitude exponential damping, and peak value of pulse is about 0.86 times of charging voltage, and Fig. 3 is the normalization frequency spectrum of output wide range pulse, centre frequency is 305MHz, and fixed percentage bandwidth is 21%.The S21 curve of coupler as shown in Figure 4.Comparatively smooth at 200MHz～800MHz coupling curve of output, at 0～200MHz low frequency, system is significantly faced upward in microwave output.Electric field mainly concentrates on ring switch place, and switch place electric field strength is more than the twice in other regions, guarantees to puncture to occur in switch place.The output pulse of monitoring resonator by the capacitor voltage divider of output coaxial cable inner core, Fig. 5 is the output wide range impulse waveform that voltage divider records, centre frequency 304MHz, bandwidth 25%
The utility model is not limited to aforesaid embodiment.The utility model expands to any new feature or any new combination disclosing in this manual, and the arbitrary new method disclosing or step or any new combination of process.
Claims (7)
1. a high power wide range quarter-wave switching oscillator, is characterized in that being made up of coaxially vibrate chamber and coupler of ring switch, quarter-wave; Described ring switch inside is provided with a coaxial inner core, and described coaxial inner core one end is connected with pulse power supply coaxial configuration, and the other end connects the coaxle input end in quarter-wave vibration chamber; In described coupler, be provided with the coaxial inner core of coupling, one end of the coaxial inner core that is coupled connects the coaxial output line in quarter-wave vibration chamber, and the other end is coupling output.
2. a kind of high power wide range quarter-wave switching oscillator according to claim 1, the input that it is characterized by described coaxial inner core is provided with several tie points, is provided with sealing ring and annular sheet metal on each tie point.
3. a kind of high power wide range quarter-wave switching oscillator according to claim 2, is characterized by described ring switch and the quarter-wave junction, chamber that coaxially vibrates and is provided with trip bolt, and the position of described trip bolt is adjustable.
4. a kind of high power wide range quarter-wave switching oscillator according to claim 1, the shell that it is characterized by described coupler is pyramidal structure.
5. a kind of high power wide range quarter-wave switching oscillator according to claim 4, it is characterized by described coupler and be provided with lumped capacitance, described lumped capacitance is arranged on coupling coaxial inner core and quarter-wave and coaxially vibrates between the output in chamber.
6. a kind of high power wide range quarter-wave switching oscillator according to claim 1, it is characterized by coaxially the vibrate inside of chamber and coupler of described ring switch, quarter-wave and be seal chamber, and between cavity, communicate, and chamber is filled with High-Voltage Insulation nitrogen.
7. a kind of high power wide range quarter-wave switching oscillator according to claim 1, is characterized by coaxially the vibrate input in chamber and the position of output of described quarter-wave and is coaxially and is horizontally disposed with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420201708.9U CN203839499U (en) | 2014-04-24 | 2014-04-24 | High power wide spectrum 1/4 wavelength switch oscillator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420201708.9U CN203839499U (en) | 2014-04-24 | 2014-04-24 | High power wide spectrum 1/4 wavelength switch oscillator |
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| CN203839499U true CN203839499U (en) | 2014-09-17 |
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| CN201420201708.9U Expired - Lifetime CN203839499U (en) | 2014-04-24 | 2014-04-24 | High power wide spectrum 1/4 wavelength switch oscillator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928740A (en) * | 2014-04-24 | 2014-07-16 | 中国工程物理研究院应用电子学研究所 | High-power wide-spectrum quarter-wave switching oscillator |
| CN104836010A (en) * | 2015-05-15 | 2015-08-12 | 中国工程物理研究院应用电子学研究所 | Charging type high-power wide-spectrum oscillator for unmatched transmission wire by use of forming wire |
| CN106931834A (en) * | 2017-04-21 | 2017-07-07 | 曹亚强 | Low latitude unmanned plane microwave injures device |
| CN107768785A (en) * | 2016-10-24 | 2018-03-06 | 苏州艾福电子通讯有限公司 | A kind of built-in ceramic cavity body filter |
| CN109149133A (en) * | 2018-08-02 | 2019-01-04 | 西安电子工程研究所 | Two channel switch type high power microwave radiation device |
-
2014
- 2014-04-24 CN CN201420201708.9U patent/CN203839499U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928740A (en) * | 2014-04-24 | 2014-07-16 | 中国工程物理研究院应用电子学研究所 | High-power wide-spectrum quarter-wave switching oscillator |
| CN104836010A (en) * | 2015-05-15 | 2015-08-12 | 中国工程物理研究院应用电子学研究所 | Charging type high-power wide-spectrum oscillator for unmatched transmission wire by use of forming wire |
| CN104836010B (en) * | 2015-05-15 | 2017-10-17 | 中久安特装备有限公司 | One kind forms line to non-matching transmission line charge type high power wide range oscillator |
| CN107768785A (en) * | 2016-10-24 | 2018-03-06 | 苏州艾福电子通讯有限公司 | A kind of built-in ceramic cavity body filter |
| CN106931834A (en) * | 2017-04-21 | 2017-07-07 | 曹亚强 | Low latitude unmanned plane microwave injures device |
| CN109149133A (en) * | 2018-08-02 | 2019-01-04 | 西安电子工程研究所 | Two channel switch type high power microwave radiation device |
| CN109149133B (en) * | 2018-08-02 | 2020-07-03 | 西安电子工程研究所 | Double-channel switch type high-power microwave radiator |
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Effective date of registration: 20160729 Address after: Mianyang City, Sichuan Province, 621054 Mountain Road No. 64 Patentee after: Sichuan Science City Jiuli Technology Industrial Co.,Ltd. Address before: 621000 Mianyang, Sichuan, box 1013, box of 919 Patentee before: INSTITUTE OF APPLIED ELECTRONICS, CAEP |
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Effective date of registration: 20160829 Address after: 610000, No. 1609, 2039 / F, Tianfu Haitang center, Tianfu Road, Tianfu New District, Sichuan, Chengdu Province, No. 16, building No. Patentee after: ZHONGJIU ANTE EQUIPMENT CO.,LTD. Address before: Mianyang City, Sichuan Province, 621054 Mountain Road No. 64 Patentee before: Sichuan Science City Jiuli Technology Industrial Co.,Ltd. |
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Granted publication date: 20140917 |