CN201867492U - High-power millimeter wave radar transmitter - Google Patents
High-power millimeter wave radar transmitter Download PDFInfo
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- CN201867492U CN201867492U CN2010206101836U CN201020610183U CN201867492U CN 201867492 U CN201867492 U CN 201867492U CN 2010206101836 U CN2010206101836 U CN 2010206101836U CN 201020610183 U CN201020610183 U CN 201020610183U CN 201867492 U CN201867492 U CN 201867492U
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- wave tube
- power supply
- traveling wave
- gyrotron traveling
- travelling wave
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Abstract
The utility model discloses a high-power millimeter wave radar transmitter. After being subjected to first-stage amplification, low-power millimeter wave input signals are input to a cycle travelling wave tube, and the cycle travelling wave tube conducts second-stage amplification on the millimeter wave signals by matching with peripheral components, so that the output of high-power millimeter wave signals is realized; and a circulator is arranged at the output position of the cycle travelling wave tube, and can protect and isolate the cycle travelling wave tube. A filament power supply of a peripheral component is used for heating the cathode of the cycle travelling wave tube; a magnetic field power supply, a superconducting line bag and a superconducting refrigerator provide an additional magnetic field for the cycle travelling wave tube; a titanium pump power supply can absorb gas in the cycle travelling wave tube, so that the high vacuum state can be kept in a cavity of the cycle travelling wave tube; a high-voltage power supply is connected in series with a solid-state modulator, the output pulse high voltage is connected to the cathode of the cycle travelling wave tube; a controlling and protecting extension set controls a switching machine of a transmitter, and simultaneously displays index parameters; and a liquid cooling source conducts cooling process on heating components of the whole transmitter.
Description
Technical field
The utility model relates to a kind of transmitter, relates in particular to a kind of high power millimeter wave radar transmitter.
Background technology
The high power millimeter wave radar has advantages such as resolution height, imaging capability is strong, beam energy is concentrated, has a extensive future in the Aeronautics and Astronautics technical field, as survey of deep space, satellite catalogue, extraterrestrial target identification etc.Therefore also become the research focus of various countries, the world today as the millimeter wave transmitter of millimetre-wave radar core component.
Develop the high power millimeter wave radar transmitter, at first the high power millimeter wave source to be arranged, traditional vacuum electron device, as conventional microwave electron tubes such as travelling-wave tube, klystron and magnetrons, owing to be subjected to the restriction of its working mechanism, run into great difficulty at millimeter wave frequency band output high-power signal.And gyrotron is as a kind of novel fast wave device, and it is not limited by the linear dimension of electronics and ripple interaction space in the conventional electron tube and the frequency rule that is inversely proportional to, thereby its power capacity is also much bigger.In order to obtain high power phase parameter millimeter wave source, greatly developing gyrotron amplifier at present in the world to be applied to the millimetre-wave radar system.Wherein, gyrotron traveling wave tube has bandwidth and the efficient bigger than other devices that circle round, thereby it just has been subjected to the generally attention of various countries scientist and government since being born.Passed through the development of decades, gyrotron traveling wave tube amplifier theoretical and test two aspect all obtaining great progress, thereby become a kind of high power broadband millimeter-wave radiation source of tool development prospect and using value.Though yet the millimeter wave transmitter has whole set equipment to occur, its peak power, average power are all less, show slightly unable to do what one wishes in the Aeronautics and Astronautics technical applications.
The utility model content
Technical matters to be solved:
At above not enough the utility model a kind of frequency height is provided, power is big and lightweight high power millimeter wave radar transmitter.
Technical scheme:
A kind of high power millimeter wave radar transmitter comprises pre-amplifier, gyrotron traveling wave tube, circulator and peripheral components; Peripheral components comprises filament supply, liquid cooling source, superconduction refrigeration machine, control protection extension set, superconducting line bag, titanium pump power supply, modulator, high-voltage power supply, magnetic field power supply;
Low power millimeter wave input signal carries out through pre-amplifier being input to gyrotron traveling wave tube after the one-level amplification, and gyrotron traveling wave tube carries out secondary to millimeter-wave signal and amplifies under the cooperation of peripheral components, realized high-power millimeter-wave signal output; Be provided with circulator at the gyrotron traveling wave tube outgoing position, circulator carries out insulation blocking to gyrotron traveling wave tube.
Described peripheral components filament supply is used for heating to the negative electrode of gyrotron traveling wave tube; Magnetic field power supply, superconducting line bag, superconduction refrigeration machine provide externally-applied magnetic field for gyrotron traveling wave tube, and its superconduction refrigeration machine packs cold to superconducting line, and magnetic field power supply provides electric current then for the line bag that is in superconducting state; Gas in the adsorbable gyrotron traveling wave tube of titanium pump power supply makes to keep high vacuum state in the gyrotron traveling wave tube cavity; High-voltage power supply and solid-state modulator are connected in series, and the high voltage pulse of output is connected to the negative electrode of gyrotron traveling wave tube, and the anticathode ejected electron is quickened; Control protection extension set is controlled the switching on and shutting down of transmitter, can show index parameter simultaneously; Cooling processing is carried out to whole transmitter heat generating components in the liquid cooling source.
Beneficial effect:
High power millimeter wave radar transmitter bandwidth of the present utility model, power are big, in light weight.
Description of drawings
Fig. 1 is the composition frame chart of this high power millimeter wave radar transmitter.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done explanation in further detail.
As shown in Figure 1, this high power millimeter wave radar transmitter comprises pre-amplifier, gyrotron traveling wave tube, circulator and peripheral components; Peripheral components comprises filament supply, liquid cooling source, superconduction refrigeration machine, control protection extension set, superconducting line bag, titanium pump power supply, modulator, high-voltage power supply, magnetic field power supply;
Transmitter is the equipment that a signal amplifies.This transmitter is made up of two-stage amplifier, and pre-amplifier is a first order amplifier, and gyrotron traveling wave tube serves as second level amplifier.
The millimeter wave input signal that amplitude is less, process pre-amplifier carry out being input to gyrotron traveling wave tube after the one-level amplification, and gyrotron traveling wave tube carries out secondary and amplifies under the cooperation of peripheral components, thereby have realized high-power millimeter-wave signal output.
Be provided with circulator at the millimeter-wave signal deferent segment, when the output terminal load matched was bad, microwave power reflection was bigger, caused that easily gyrotron traveling wave tube work is undesired or caused gyrotron traveling wave tube to damage; The circulator that is positioned at the gyrotron traveling wave tube outgoing position can play the insulation blocking effect.
Filament supply is used for heating to the negative electrode of gyrotron traveling wave tube, and the aggravation of the cathode material electronics thermal motion of gyrotron traveling wave tube at high temperature makes electronics overflow merit and greatly reduces, and helps improving the electron emissivity of negative electrode.
Magnetic field power supply, superconducting line bag, superconduction refrigeration machine provide externally-applied magnetic field for gyrotron traveling wave tube; Gyrotron traveling wave tube is operated in millimere-wave band, need have the externally-applied magnetic field about tens kilogausss, and common electromagnetic wire bag is difficult to reach requirement, needs to adopt superconductor technology to realize; The superconduction refrigeration machine packs cold to superconducting line, line bag temperature is reduced to about 4K, has the superconduction ability; Magnetic field power supply provides electric current then for the line bag that is in superconducting state, has so just produced the externally-applied magnetic field of tens kilogausss.
Gyrotron traveling wave tube requires to keep in the tube chamber vacuum state as vacuum device; And gyrotron traveling wave tube when work electronics annotate and collide tube wall and can inspire some gases, the titanium pump power supply has adsorptive power to these faint gases, helps keeping the vacuum state of gyrotron traveling wave tube like this.
High-voltage power supply and solid-state modulator are connected in series, and the high voltage pulse of output is connected to the negative electrode of gyrotron traveling wave tube, and the anticathode ejected electron is quickened, and it is entered in the resonator cavity of gyrotron traveling wave tube with the speed near the light velocity.
Control protection extension set is transmitter man-machine interaction parts; Control protection extension set is controlled the switching on and shutting down of transmitter, can show important index parameter simultaneously, as high-voltage value, performance number or the like.
Cooling processing is carried out to whole transmitter heat generating components in the liquid cooling source.
Though the utility model with preferred embodiment openly as above; but they are not to be used for limiting the utility model; anyly be familiar with this skill person; in the spirit and scope that do not break away from the utility model; can do various variations or retouching from working as, what therefore protection domain of the present utility model should be defined with the application's claim protection domain is as the criterion.
Claims (2)
1. a high power millimeter wave radar transmitter is characterized in that: comprise pre-amplifier, gyrotron traveling wave tube, circulator and peripheral components; Peripheral components comprises filament supply, liquid cooling source, superconduction refrigeration machine, control protection extension set, superconducting line bag, titanium pump power supply, modulator, high-voltage power supply, magnetic field power supply;
Low power millimeter wave input signal carries out through pre-amplifier being input to gyrotron traveling wave tube after the one-level amplification, and gyrotron traveling wave tube carries out secondary to millimeter-wave signal and amplifies under the cooperation of peripheral components, realized high-power millimeter-wave signal output; Be provided with circulator at the gyrotron traveling wave tube outgoing position, circulator carries out insulation blocking to gyrotron traveling wave tube.
2. high power millimeter wave radar transmitter according to claim 1 is characterized in that: described peripheral components filament supply is used for heating to the negative electrode of gyrotron traveling wave tube; Magnetic field power supply, superconducting line bag, superconduction refrigeration machine provide externally-applied magnetic field for gyrotron traveling wave tube, and its superconduction refrigeration machine packs cold to superconducting line, and magnetic field power supply provides electric current then for the line bag that is in superconducting state; Gas in the adsorbable gyrotron traveling wave tube of titanium pump power supply makes to keep high vacuum state in the gyrotron traveling wave tube cavity; High-voltage power supply and solid-state modulator are connected in series, and the high voltage pulse of output is connected to the negative electrode of gyrotron traveling wave tube, and the anticathode ejected electron is quickened; Control protection extension set is controlled the switching on and shutting down of transmitter, can show index parameter simultaneously; Cooling processing is carried out to whole transmitter heat generating components in the liquid cooling source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206101836U CN201867492U (en) | 2010-11-17 | 2010-11-17 | High-power millimeter wave radar transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206101836U CN201867492U (en) | 2010-11-17 | 2010-11-17 | High-power millimeter wave radar transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201867492U true CN201867492U (en) | 2011-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206101836U Expired - Fee Related CN201867492U (en) | 2010-11-17 | 2010-11-17 | High-power millimeter wave radar transmitter |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103997350A (en) * | 2014-06-09 | 2014-08-20 | 成都国光电气股份有限公司 | S-waveband and C-waveband microwave power module |
| CN104101867A (en) * | 2014-06-20 | 2014-10-15 | 杭州电子科技大学 | Multi band millimeter wave anticollision radar signal source |
| CN105676189A (en) * | 2015-12-18 | 2016-06-15 | 四川九洲电器集团有限责任公司 | Power transmitter |
| CN109460002A (en) * | 2018-09-27 | 2019-03-12 | 电子科技大学 | Efficiently Control protection system and method in a kind of high-power millimeter wave test process |
| CN111324075A (en) * | 2020-03-24 | 2020-06-23 | 电子科技大学 | Intelligent management and control system for transmitter superconducting magnet system |
-
2010
- 2010-11-17 CN CN2010206101836U patent/CN201867492U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103997350A (en) * | 2014-06-09 | 2014-08-20 | 成都国光电气股份有限公司 | S-waveband and C-waveband microwave power module |
| CN103997350B (en) * | 2014-06-09 | 2016-01-27 | 成都国光电气股份有限公司 | S, C-band microwave power module |
| CN104101867A (en) * | 2014-06-20 | 2014-10-15 | 杭州电子科技大学 | Multi band millimeter wave anticollision radar signal source |
| CN105676189A (en) * | 2015-12-18 | 2016-06-15 | 四川九洲电器集团有限责任公司 | Power transmitter |
| CN109460002A (en) * | 2018-09-27 | 2019-03-12 | 电子科技大学 | Efficiently Control protection system and method in a kind of high-power millimeter wave test process |
| CN109460002B (en) * | 2018-09-27 | 2020-09-04 | 电子科技大学 | High-efficiency control protection system and method in high-power millimeter wave test process |
| CN111324075A (en) * | 2020-03-24 | 2020-06-23 | 电子科技大学 | Intelligent management and control system for transmitter superconducting magnet system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20131117 |