CN104241821B - A kind of high power radiation device of frequency-adjustable - Google Patents
A kind of high power radiation device of frequency-adjustable Download PDFInfo
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- CN104241821B CN104241821B CN201410418462.5A CN201410418462A CN104241821B CN 104241821 B CN104241821 B CN 104241821B CN 201410418462 A CN201410418462 A CN 201410418462A CN 104241821 B CN104241821 B CN 104241821B
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Abstract
The present invention relates to the high power radiation device of a kind of frequency-adjustable, the irradiator of regulable center frequency is realized by changing antenna oscillator length, discharging distance and inner gas pressure, combined charge power supply and pulse power source platform, it is achieved in the radiation field of the high-power electromagnetic pulse of same system output different frequency.The present invention is compared with common high power broad-band antenna, have the following characteristics that 1 radiation frequency is adjustable: under the excitation of identical pulse power supply, by group length oscillators different in displacement irradiator, realize the regulation of radiation frequency, need not use different power sources, reduce requirement and the cost of electromagnetic pulse effect test.2 discharging distances are adjustable: by the electrode spacing of discharge switch is set to the outside adjustable mode of antenna house, it is possible to achieve the group battle array of irradiator, it is possible to obtain higher radiation field intensity.
Description
Technical field
The invention belongs to high power pulse compression and electromagnetic irradiating device, relate to the high power radiation device of a kind of frequency-adjustable,
It is that feed-in high-voltage pulse is compressed by self structure by one, potential pulse is converted into radio-frequency pulse, and realizes
Device to the Net long wave radiation in space.
Background technology
When carrying out electromagnetic pulse and the damage effect of electronics equipment being tested, need to change the Gao Gong of different center frequency
Rate radiation source, to obtaining sensitive frequency and the damage threshold of target.In order to obtain test data, need to carry out respectively
Planting the supporting of radiating system, on the one hand the area to test site proposes friendship high request, on the other hand too increases examination
Test required cost.Thus, a set of high power radiation system based on frequency-adjustable irradiator is to electromagnetic pulse damage effect
Should be with electromagnetic reinforcement test necessity very.
At present, the domestic high power wideband radiator to frequency-adjustable not yet carries out particular study work.
Summary of the invention
Solve the technical problem that
In place of the deficiencies in the prior art, the present invention proposes the high power radiation device of a kind of frequency-adjustable, permissible
Effectively reduce high-power electromagnetic pulse effects to test radiation source kind and the requirement of test site.
Technical scheme
A kind of high power radiation device of frequency-adjustable, it is characterised in that include input terminal 1, end plate 2, ring flange 3,
Antenna house body 4, radiating doublet 5, discone 6, sparking electrode 7, adjusting rod 8 and support 9；Antenna house body 4
Two ends by ring flange 3 fixed charge method end plate 2, the middle part of end plate 2 is provided with input terminal 1；Antenna house body 4 cylinder
In two ends fix circular support 9, discone 6 is fixed in the front end of support 9, multiple radiating doublets 5 with in discone 6
Multiple through holes connect；Sparking electrode 7 is located at the middle part of discone 6, and is connected with one end of adjusting rod 8, adjusting rod 8
The other end threaded with the regulation on input terminal 1；End plate 2 and ring flange 3, end plate 2 and input terminal 1
Between be provided with sealing O-shaped rubber ring, the space that antenna house body 4 and end plate 2 and ring flange 3 are formed is filled with for
The nitrogen of the High-Voltage Insulation of discharge switch or sulfur hexafluoride gas.
The length of described radiating doublet 5 depends on the frequency that irradiator needs export.
The column type body of described antenna house body 4 uses winding glass fiber tube one-shot forming to prepare.
The pressure that bears of described antenna house body 4 is 6-8MPa.
Described sparking electrode uses sphere to cut the structure on top.
The corner of described discone 6 is rounding structure.
Beneficial effect
The high power radiation device of a kind of frequency-adjustable that the present invention proposes, by changing antenna oscillator length, discharging distance
With the irradiator that inner gas pressure realizes regulable center frequency, combined charge power supply and pulse power source platform, it is achieved same
The radiation field of the high-power electromagnetic pulse of one system output different frequency.
The present invention, compared with common high power broad-band antenna, has the following characteristics that
1 radiation frequency is adjustable: under the excitation of identical pulse power supply, by group length different in displacement irradiator
Oscillator, it is achieved the regulation of radiation frequency, it is not necessary to use different power sources, reduces electromagnetic pulse effect test
Require and cost.
2 discharging distances are adjustable: by the electrode spacing of discharge switch is set to the outside adjustable mode of antenna house, can
To realize the group battle array of irradiator, it is possible to obtain higher radiation field intensity.
Accompanying drawing explanation
The structural representation of the frequency-adjustable irradiator of Fig. 1: the present invention；
Fig. 2: discone 6 structural representation, a: front view；B: side view；
Fig. 3: radiating doublet structural representation；
Fig. 4: discharge electrode structure schematic diagram, a: side view；B: top view；
1-input terminal, 2-end plate, 3-ring flange, 4-antenna house body, 5-radiating doublet, 6-discone, 7-discharges electricity
Pole, 8-adjusting rod, 9-support；
Fig. 5: irradiator workflow diagram；
Fig. 6: antenna excitation waveform；
The far-field radiation pattern of Fig. 7: 7cm element antenna
The transmitted spectrum scattergram of Fig. 8: 7cm element antenna；
The far-field radiation pattern of Fig. 9: 15cm element antenna；
The transmitted spectrum scattergram of Figure 10: 15cm element antenna；
Detailed description of the invention
In conjunction with embodiment, accompanying drawing, the invention will be further described:
The scheme of the embodiment of the present invention is: by the antenna house body of high airtight grade, adjusting rod, the adjustable electric discharge of spacing
Electrode, discone and radiating doublet composition, as shown in Figure 1.
Ring flange 3 fixed charge method end plate 2 is passed through at the two ends of antenna house body 4, and the middle part of end plate 2 is provided with input terminal 1；My god
In irdome body 4 cylinder two ends fix circular support 9, discone 6 is fixed in the front end of support 9, and multiple radiation are shaken
5 (as shown in Figure 2) of son are threaded connection with the multiple through holes in discone 6 (as shown in Figure 3)；By in discone
The oscillator of upper installation different length (oscillator length that single is installed is consistent), it is achieved the regulation of irradiator output frequency.
Sparking electrode 7 is located at the middle part of discone 6, and is connected with one end of adjusting rod 8, the other end of adjusting rod 8 with
Regulation on input terminal 1 is threaded；Owing to gas discharge exists certain discreteness, in order to solve irradiator group
Battle array radiates nonsynchronous problem, and discharging distance is designed as the adjustable mode of certain limit.
Sealing O-shaped rubber ring, antenna house body 4 it is provided with between end plate 2 and ring flange 3, end plate 2 and input terminal 1
With nitrogen or the sulfur hexafluoride being filled with the High-Voltage Insulation for discharge switch in the space of end plate 2 and ring flange 3 formation
Gas.
In the present invention, irradiator is symmetrical structure.Wherein the body of antenna house is cylinder, uses and is wound around glass fiber tube
One-shot forming technique, and pre-buried silk braid in the ring flange at two ends.Between end plate and ring flange, end plate and input terminal
O-shaped rubber ring is used to seal.This antenna house has relatively low dielectric constant and good sealability, and body can
To bear the pressure of about 6-8MPa；Adjusting rod is threaded connection with sparking electrode, can realize between discharge switch electrode
Away from the regulation at the outside 0-10mm of antenna house.Sparking electrode uses sphere to cut the mode on top, as shown in Figure 4.Corner is led
Metal discone and the radiating doublet of circle are threaded connection, good conducting composition antenna, it is achieved omnidirectional's spoke of electromagnetic pulse
Penetrate.
The work process of this irradiator can be described below: fast rise time high-voltage pulse is through irradiator input terminal, to two
The distribution capacity of individual antenna discone plane is charged, and when voltage reaches preset value, gas breakdown switch (is put by two
Electricity electrode and insulating gas composition), form radio-frequency pulse, the antenna formed via discone and radiating doublet is high to external radiation
Power electromagnetic pulse, workflow is as shown in Figure 5.
When carrying out simulation calculation, use the equivalent waveform-Double exponential pulse (as shown in Figure 6) of gas discharge, respectively
Excitation oscillator length be the irradiator of 7cm, 15cm, the far-field radiation pattern obtained and frequency spectrum profile, respectively as Fig. 7-
Shown in Figure 10.From the graph, it is apparent that same excitation waveform, the irradiator radiation signal of different oscillator lengths
Mid frequency different.
Claims (5)
1. the high power radiation device of a frequency-adjustable, it is characterised in that include input terminal (1), end plate (2), flange
Dish (3), antenna house body (4), radiating doublet (5), discone (6), sparking electrode (7), adjusting rod (8)
With support (9)；Ring flange (3) fixed charge method end plate (2), end plate (2) are passed through in the two ends of antenna house body (4)
Middle part be provided with input terminal (1)；In antenna house body (4) cylinder two ends fix circular support (9),
Discone (6) is fixed in the front end of support (9), and multiple radiating doublets (5) are with the multiple through holes in discone (6) even
Connect；Sparking electrode (7) is located at the middle part of discone (6), and is connected with one end of adjusting rod (8), adjusting rod
(8) the other end is threadeded with the regulation on input terminal (1)；End plate (2) and ring flange (3), end
Sealing O-shaped rubber ring, antenna house body (4) and end plate (2) it is provided with between plate (2) and input terminal (1)
The space formed with ring flange (3) is filled with nitrogen or the sulfur hexafluoride gas of the High-Voltage Insulation for discharge switch
Body；The length of described radiating doublet (5) depends on the frequency that irradiator needs export.
The high power radiation device of frequency-adjustable the most according to claim 1, it is characterised in that: described antenna house body (4)
Column type body use be wound around glass fiber tube one-shot forming prepare.
The high power radiation device of frequency-adjustable the most according to claim 1 or claim 2, it is characterised in that: described antenna vestlet
The pressure that bears of body (4) is 6-8MPa.
The high power radiation device of frequency-adjustable the most according to claim 1, it is characterised in that: described sparking electrode uses
Sphere cuts the structure on top.
The high power radiation device of frequency-adjustable the most according to claim 1, it is characterised in that: the limit of described discone (6)
Angle is rounding structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410418462.5A CN104241821B (en) | 2014-08-22 | 2014-08-22 | A kind of high power radiation device of frequency-adjustable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410418462.5A CN104241821B (en) | 2014-08-22 | 2014-08-22 | A kind of high power radiation device of frequency-adjustable |
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| Publication Number | Publication Date |
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| CN104241821A CN104241821A (en) | 2014-12-24 |
| CN104241821B true CN104241821B (en) | 2016-08-31 |
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| CN201410418462.5A Active CN104241821B (en) | 2014-08-22 | 2014-08-22 | A kind of high power radiation device of frequency-adjustable |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106299579B (en) * | 2016-10-21 | 2018-10-09 | 西安电子工程研究所 | Linear type switch arrays microwave oscillator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009016652A (en) * | 2007-07-06 | 2009-01-22 | Meidensha Corp | Power electric equipment |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004164904A (en) * | 2002-11-11 | 2004-06-10 | Nec Micro Hakan Kk | Electron tube for communication |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009016652A (en) * | 2007-07-06 | 2009-01-22 | Meidensha Corp | Power electric equipment |
| 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 |
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| CN104241821A (en) | 2014-12-24 |
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