CN104133126A - Source stirring electromagnetic reverberation chamber and stirring method thereof - Google Patents
Source stirring electromagnetic reverberation chamber and stirring method thereof Download PDFInfo
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- CN104133126A CN104133126A CN201410308595.7A CN201410308595A CN104133126A CN 104133126 A CN104133126 A CN 104133126A CN 201410308595 A CN201410308595 A CN 201410308595A CN 104133126 A CN104133126 A CN 104133126A
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Abstract
Disclosed are a source stirring electromagnetic reverberation chamber and a stirring method thereof. The reverberation chamber includes an electromagnetic shielding chamber, a source stirring device installed on the side wall of the electromagnetic shielding chamber, and the source stirring method used for describing installation, motion and control method of an transmitting antenna. Simultaneous change of the position and polarization direction of the transmitting antenna is realized through control of a rotating shaft to rotate. A drive device of the rotating shaft is installed at the outer side of the reverberation chamber and the rotating shaft which is installed on the inner wall of the reverberation chamber is driven to rotate through a changeover mechanism. The reverberation chamber realizes field uniformity in the reverberation chamber through rotation of a single antenna so that space utilization rate in the reverberation chamber is effectively improved and a source stirring reverberation chamber of the same volume can realize a larger test area; relative to an EUT of the same size, a source stirring reverberation chamber which is smaller in volume can be designed so that generation of high field intensity is better facilitated; and the reverberation chamber is also applicable to a condition in which a plurality of transmitting antennae are configured in a reverberation chamber to carry out source stirring.
Description
Technical field
The present invention relates to Electro Magnetic Compatibility experiment and field tests, specifically a provenance stirs electromagnetic reverberation room and stirring means thereof.
Background technology
Existing electromagnetic reverberation room is generally mechanical raking reverberation chamber, changes the electromagnetism boundary condition of reverberation chamber inside by the state that changes mechanical stirrer, and then reaches the object that changes the field distribution of reverberation chamber internal electromagnetic.Due to the multiple reflections of reverberation chamber inwall and " stirring " of stirrer effect, the electromagnetic environment of reverberation chamber inside presents the feature of the homogeneous isotropism in statistical significance, in stirrer whipping process, on the optional position of test zone, the phase place of electromagnetic field and amplitude, electromagnetic incident direction and polarised direction etc. are all that statistics is equally distributed, thereby Simulation of Complex, random actual electromagnetic environment more truly.
There are one or more bulky mechanical stirrers in mechanical raking reverberation chamber inside, and the impact for fear of stirrer on emitting antenna and test zone, IEC61000-4-21:2011 standard regulation, the distance of stirrer and emitting antenna and test zone should be not less than 1/4 of lowest usable frequency corresponding wavelength.Stirrer has occupied larger reverberation chamber inner space, makes the space availability ratio of mechanical raking reverberation chamber not high.
It is to realize by position and the polarised direction of change source antenna the change that in reverberation chamber, electromagnetic field distributes that reverberation chamber is stirred in source, as long as isotropic electromagnetic field be added up evenly, be added up to the forms of motion of reasonable design antenna also can inner generation of reverberation chamber.
Compared with mechanical raking reverberation chamber, reverberation chamber is stirred in source does not need bulky mechanical stirrer, change with source antenna position and polarised direction realizes " stirring ", effectively improve the space availability ratio of reverberation chamber, thereby can produce larger test zone in the reverberation chamber of same volume.On the other hand, for identical tested equipment, the design volume that reverberation chamber is stirred in source is less than mechanical raking reverberation chamber, and the electromagnetic energy of feed-in is constrained in less space, thereby makes can obtain in reverberation chamber inside the more electromagnetic field of high field intensity under identical power initial conditions.In addition, stir and can obtain the reverberation chamber lowest usable frequency lower than mechanical raking by source, thereby can more give prominence to the superiority of reverberation chamber.
Realize the greatest difficulty that stirs electromagnetic reverberation room in source and be how to design the antenna movement mode that is easy to Project Realization.Document " A novel reverberating chamber:the source-stirred chamber " has been proved the feasibility of source stirring means first from principle, but fails to provide the concrete implementation of source stirring means; Document " has utilized many antenna source to stir the analysis that improves reverberation chamber field uniformity " based on simulation study in mechanical raking reverberation chamber, to add many antenna source and stir to improve reverberation chamber build-in test regional field homogeneity, but the random source stirring means arranging of the how secondary emitting antenna adopting in literary composition is difficult for Project Realization; When document " theoretical analysis of electromagnetic compatibility reverberation chamber and experimental study " has proved that stirring factor in interpolation source makes low frequency on mechanical raking reverberation chamber basis by experiment, the field uniformity in reverberation chamber build-in test region has obtained obvious improvement, but its mobile emitting antenna adopting is also difficult for Project Realization to the source stirring means of multiple positions.Therefore, explore feasible electromagnetic reverberation room source stirring means in engineering and there is important using value.
Summary of the invention
In order to solve, mechanical raking reverberation chamber inner space utilization factor is not high, specific power produces the lower technical matters of field intensity ability, the invention provides a provenance and stir electromagnetic reverberation room and stirring means thereof, be used in realization in electromagnetic reverberation room and add up evenly, add up isotropic electromagnetic field test environment, can be used as the technological approaches of realizing source stirring electromagnetic reverberation room.
Technical solution of the present invention is:
One provenance stirs electromagnetic reverberation room, and its special character is: comprise the source mixing component being arranged on electromagnetic shielding chamber sidewall:
Turning axle that described source mixing component comprises stepper motor, be connected with stepper motor, be arranged on the extensible arm on turning axle and be arranged on the emitting antenna on extensible arm;
Described turning axle is " L " type, and described emitting antenna is installed on the extensible arm of " L " type turning axle, and the position and the polarised direction that turn to different conditions drive emitting antenna by controlling turning axle change simultaneously; The equal capable of regulating of length of described turning axle and extensible arm.
Above-mentioned source mixing component at least arranges one.
Above-mentioned stepper motor is arranged at electromagnetic screen outside, and drives the turning axle that is arranged at electromagnetic screen chamber interior walls to rotate by bindiny mechanism.
Above-mentioned emitting antenna (low frequency) in 1GHz adopts bipyramid log-periodic antenna or log-periodic antenna, and 1GHz above (high frequency) adopts electromagnetic horn.
Above-mentioned bindiny mechanism can realize the manual setting of emitting antenna initial directional and polarised direction; Extensible arm at right angle setting, in one end of turning axle, forms " L " type with turning axle.
The initial installation site of above-mentioned emitting antenna is determined by the length factor of installation site, length, initial rotation angle and the extensible arm of turning axle; Between emitting antenna and electromagnetic screen chamber interior walls, distance is at least 1m or is greater than wavelength corresponding to 1/4th lowest usable frequency.
The initial attitude of above-mentioned emitting antenna comprises sensing and the polarised direction of emitting antenna; Emitting antenna should point to the reverberation chamber corner that deviates from test zone; Polarised direction should ensure there is certain component in three rectangular coordinate directions of electromagnetic screen chamber inner space, avoids the vertical situation of certain rectangular coordinate direction of emitting antenna and electromagnetic shielding chamber.
Above-mentioned bindiny mechanism is the wall bearing excessively in electromagnetic screen chamber interior walls, crosses wall bearing and is connected with the stepper motor being installed on electromagnetic screen chamber outer wall.
Above-mentioned turning axle is installed on the point midway on electromagnetic shielding chamber internal face, to ensure that emitting antenna has the maximum radius of gyration.
The stirring means of electromagnetic reverberation room is stirred in above-mentioned source, and its special character is: comprise the following steps:
1) emitting antenna is installed on to one end of extensible arm, by regulating the installation site of extensible arm on turning axle to change the radius of turn of emitting antenna with respect to turning axle, and records the initial position of emitting antenna;
2) centered by the installation site of emitting antenna, rotation emitting antenna, initial directional and the polarization mode of setting emitting antenna;
3) the progressive motor power of connection source mixing component;
4) to emitting antenna feed-in electromagnetic signal;
5) stop to emitting antenna feed-in electromagnetic signal, by the extremely next position of progressive motor automatic rotation emitting antenna of source mixing component;
6) repeating step 4) and step 5), until emitting antenna completes the rotation of one-period.
Advantage of the present invention is:
1, the present invention realizes " stirring " by antenna movement, has removed bulky mechanical stirrer, thereby has effectively improved the space availability ratio of reverberation chamber inside, compares with the mechanical raking reverberation chamber of same volume, can realize larger test zone.In like manner, if realize onesize test zone, can be than mechanical raking reverberation chamber design less, thereby be more conducive to produce high field intensity;
2, the present invention adopts the source stirring means that single antenna rotates, forms of motion is simple, is convenient to design automatic control system, realizes the automatic control of emitting antenna motion, thereby can greatly reduce the manual intervention in reverberation chamber test process, improve the repeatability of testing efficiency and test;
3, the emitting antenna that the present invention adopts the step motor control that is installed on electromagnetic screen outdoor to be installed on electromagnetic screen chamber interior rotates, avoid in reverberation chamber motor and control circuit under strong-electromagnetic field environment to be difficult to ensure the problem of normal work, be easy to Project Realization;
4, the present invention adopts extensible arm formation " L " type turning axle is installed on turning axle, emitting antenna is installed on extensible arm, the initial attitude of emitting antenna and all capable of regulatings of the length of extensible arm, improve the dirigibility that antenna original state arranges, polarised direction and the aerial position of being convenient to realize antenna antenna in rotation process have obvious change, are conducive to improve the field uniformity in reverberation chamber build-in test region;
5, the present invention is equally applicable to the situation of configuration multi-section emitting antenna in reverberation chamber.In the time that the size of electromagnetic reverberation room is larger, a secondary emitting antenna rotates in reverberation chamber can not realize " stirring " fully, now needs to increase the quantity of emitting antenna.In reverberation chamber, the number needs of emitting antenna will design according to the concrete size of reverberation chamber.
Brief description of the drawings
Fig. 1 is overall design schematic diagram of the present invention.
Drawing reference numeral explanation: 1-electromagnetic shielding chamber, 2-emitting antenna, 3-stepper motor, 4-turning axle, 5-extensible arm, 6-test zone.
Embodiment
Referring to Fig. 1, a provenance stirs electromagnetic reverberation room, comprises electromagnetic shielding chamber 1, also comprises the source mixing component being arranged on electromagnetic shielding chamber 1 sidewall; Turning axle 4 that source mixing component comprises stepper motor 3, be connected with stepper motor 3, be arranged on the extensible arm 5 on turning axle 4 and be arranged on the emitting antenna 2 on extensible arm 5; At least 1 of source mixing component.
One provenance stirs the stirring means of reverberation chamber, comprises the following steps:
1) emitting antenna 2 is installed on to one end of extensible arm 5, by regulating the installation site of extensible arm 5 on turning axle 4 to change the radius of turn of emitting antenna 2 with respect to turning axle 4, and records the initial position of emitting antenna 2;
2) centered by the installation site of emitting antenna 2, rotation emitting antenna 2, initial directional and the polarization mode of setting emitting antenna 2;
3) progressive motor 3 power supplys of connection source mixing component;
4) to emitting antenna 2 feed-in electromagnetic signals;
5) stop to emitting antenna 2 feed-in electromagnetic signals, by stepper motor 3 automatic rotation emitting antennas 2 to next position;
6) repeating step 4) and step 5), until emitting antenna 2 completes the rotation of one-period.
1, mentality of designing
The invention provides a provenance and stir electromagnetic reverberation room, comprise the source mixing component being arranged on electromagnetic shielding chamber 1 sidewall; Turning axle 4 that source mixing component comprises stepper motor 3, be connected with stepper motor 3, be arranged on the extensible arm 5 on turning axle 4 and be arranged on the emitting antenna 2 on extensible arm 5; Source mixing component is except stepper motor 3 is in electromagnetic shielding chamber 1 outside, and remainder is all in electromagnetic shielding chamber 1;
The invention provides a provenance and stir the stirring means of electromagnetic reverberation room, comprise that initial directional and the polarised direction of initial position setting, the emitting antenna 2 of emitting antenna 2 set, the mode of motion of emitting antenna 2.
The present invention controls the motion of emitting antenna 2 automatically by source stirring apparatus, constantly change position, sensing and the polarised direction of emitting antenna, thereby realizes the field uniformity in electromagnetic reverberation room build-in test region 6.
The present invention stirs by the source stirring apparatus control emitting antenna motion source of realizing, replace the mechanical stirrer of mechanical raking reverberation chamber, effectively improve reverberation chamber inner space utilization factor, made the volume of test zone 6 have very large lifting compared with mechanical raking reverberation chamber; The present invention has taked to be arranged on stepper motor 3 outside electromagnetic shielding chamber 1 and has controlled emitting antenna 2 and move, and has avoided stepper motor 3 in reverberation chamber, under strong-electromagnetic field environment, to be difficult to ensure the problem of normal work; The present invention has realized the automatic control that emitting antenna 2 moves, and has reduced the manual operation in test process, has greatly improved the repeatability of testing efficiency and test; The present invention has taked to install extensible arm 5 on turning axle 4,, and the method that emitting antenna 2 is installed on extensible arm 5, improve dirigibility and diversity that emitting antenna 2 original states arrange, be conducive to improve the field uniformity in electromagnetic reverberation room build-in test region 6.
2, implement principle
(1) configuration of emitting antenna 2, installation, initial position setting, motion and control
Referring to Fig. 1, source is stirred in electromagnetic reverberation room and is equipped with emitting antenna 2, turning axle 4 and extensible arm 5.Emitting antenna 2 (low frequency) in 1GHz adopts bipyramid log-periodic antenna or log-periodic antenna, and 1GHz above (high frequency) adopts electromagnetic horn; Emitting antenna 2 is installed on extensible arm 5 by corresponding bindiny mechanism, and bindiny mechanism can realize the manual setting of emitting antenna 2 initial directional and polarised direction; Extensible arm 5 at right angle settings, in one end of turning axle 4, form " L " type with turning axle 4; Turning axle 4 is vertically mounted on crossing on wall bearing on electromagnetic shielding chamber 1 inwall, crosses wall bearing and is connected with the stepper motor 3 being installed on electromagnetic shielding chamber 1 outer wall; The rotation of stepper motor 3 rotates by crossing wall bearing driven rotary axle 4, and then drives the emitting antenna 2 being installed on extensible arm 5 to rotate in electromagnetic shielding chamber 1.
Affecting source stirring means realizes the inhomogeneity main design factor of reverberation chamber fields inside and has: the mixing position of initial installation site, initial attitude and the emitting antenna of emitting antenna 2.
The initial installation site of emitting antenna 2 is determined by factors such as the length of installation site, length, initial rotation angle and the extensible arm of turning axle 4.In reverberation chamber, in order not affect the radiation characteristic of emitting antenna 2, between emitting antenna 2 and electromagnetic shielding chamber 1 inwall, distance is at least 1m or is greater than wavelength corresponding to 1/4th lowest usable frequency.Therefore, turning axle 4 can be installed on to the point midway on electromagnetic shielding chamber 1 internal face, to ensure that emitting antenna 2 has the maximum radius of gyration.In addition, the Design of length of turning axle 4 and extensible arm 5 also should take into full account between emitting antenna 2 and electromagnetic shielding chamber 1 inwall sufficient distance.
The initial attitude of emitting antenna 2 comprises sensing and the polarised direction of emitting antenna.Emitting antenna should point to the reverberation chamber corner that deviates from test zone 6; Polarised direction should ensure there is certain component in three rectangular coordinate directions of reverberation chamber inner space, avoids the situation that emitting antenna 2 is vertical with electromagnetic shielding chamber 1 certain rectangular coordinate direction.
The mixing position of emitting antenna 2 can adopt the method for uniform sampling or nonuniform sampling.Taking uniform sampling as example, the each angle of rotating formed objects of emitting antenna 2 is as a mixing position, and even source whipping process comprises 12 mixing positions, and between adjacent two mixing positions, the corner of emitting antenna differs 30 degree.
(2) realization of reverberation chamber stirring means is stirred in source
Stir reverberation chamber as example to configure the source of 1 secondary emitting antenna, carry out the installation configuration of emitting antenna 2 according to mode as shown in Figure 1, in the time that turning axle 4 rotates, emitting antenna 2 moves in a circle around turning axle 4 in the face that is parallel to turning axle and installs wall.Stepper motor 3 is controlled emitting antenna 2 and is rotated to each designed mixing position successively discretely, and in the resident regular hour of each mixing position, to form stable field distribution in reverberation chamber.Emitting antenna 2 is around the turning axle 4 source whipping process that rotated a circle a time.
Claims (10)
1. a provenance stirs electromagnetic reverberation room, it is characterized in that: comprise the source mixing component being arranged on electromagnetic shielding chamber (1) sidewall:
Turning axle (4) that described source mixing component comprises stepper motor (3), be connected with stepper motor (3), be arranged on the extensible arm (5) on turning axle (4) and be arranged on the emitting antenna (2) on extensible arm (5);
Described turning axle (4) is " L " type, and described emitting antenna (2) is installed on the extensible arm (5) of " L " type turning axle (4), and the position and the polarised direction that turn to different conditions drive emitting antenna (2) by controlling turning axle (4) change simultaneously; The equal capable of regulating of length of described turning axle (4) and extensible arm (5).
2. electromagnetic reverberation room is stirred in source according to claim 1, it is characterized in that: described source mixing component at least arranges one.
3. stir electromagnetic reverberation room according to source described in claim 1 or 2, it is characterized in that: described stepper motor (3) is arranged at electromagnetic shielding chamber (1) outside, and drive the turning axle (4) that is arranged at electromagnetic shielding chamber (1) inwall to rotate by bindiny mechanism.
4. electromagnetic reverberation room is stirred in source according to claim 3, it is characterized in that: described emitting antenna (2) (low frequency) in 1GHz adopts bipyramid log-periodic antenna or log-periodic antenna, and 1GHz above (high frequency) adopts electromagnetic horn.
5. electromagnetic reverberation room is stirred in source according to claim 4, it is characterized in that: described bindiny mechanism can realize the manual setting of emitting antenna (2) initial directional and polarised direction; Extensible arm (5) at right angle setting, in one end of turning axle (4), forms " L " type with turning axle (4).
6. electromagnetic reverberation room is stirred in source according to claim 5, it is characterized in that: the initial installation site of described emitting antenna (2) is determined by the length factor of installation site, length, initial rotation angle and the extensible arm of turning axle (4); Between emitting antenna (2) and electromagnetic shielding chamber (1) inwall, distance is at least 1m or is greater than wavelength corresponding to 1/4th lowest usable frequency.
7. electromagnetic reverberation room is stirred in source according to claim 6, it is characterized in that: the initial attitude of described emitting antenna (2) comprises sensing and the polarised direction of emitting antenna; Emitting antenna should point to the reverberation chamber corner that deviates from test zone (6); Polarised direction should ensure there is certain component in three rectangular coordinate directions of electromagnetic shielding chamber (1) inner space, avoids the situation that emitting antenna (2) is vertical with certain rectangular coordinate direction of electromagnetic shielding chamber (1).
8. electromagnetic reverberation room is stirred in source according to claim 7, it is characterized in that: described bindiny mechanism, for the wall bearing excessively on electromagnetic shielding chamber (1) inwall, crosses wall bearing and is connected with the stepper motor (3) being installed on electromagnetic shielding chamber (1) outer wall.
9. electromagnetic reverberation room is stirred in source according to claim 8, it is characterized in that: described turning axle (4) is installed on the point midway on electromagnetic shielding chamber (1) internal face, to ensure that emitting antenna (2) has the maximum radius of gyration.
10. the stirring means of electromagnetic reverberation room is stirred in source as claimed in claim 1, it is characterized in that: comprise the following steps:
1) emitting antenna (2) is installed on to one end of extensible arm (5), by regulating the installation site of extensible arm (5) on turning axle (4) to change the radius of turn of emitting antenna (2) with respect to turning axle (4), and record the initial position of emitting antenna (2);
2) centered by the installation site of emitting antenna (2), rotation emitting antenna (2), initial directional and the polarization mode of setting emitting antenna (2);
3) progressive motor (3) power supply of connection source mixing component;
4) to emitting antenna (2) feed-in electromagnetic signal;
5) stop to emitting antenna (2) feed-in electromagnetic signal, by the extremely next position of progressive motor (3) automatic rotation emitting antenna (2) of source mixing component;
6) repeating step 4) and step 5), until emitting antenna (2) completes the rotation of one-period.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410308595.7A CN104133126A (en) | 2014-07-01 | 2014-07-01 | Source stirring electromagnetic reverberation chamber and stirring method thereof |
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| CN201410308595.7A CN104133126A (en) | 2014-07-01 | 2014-07-01 | Source stirring electromagnetic reverberation chamber and stirring method thereof |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104407248A (en) * | 2014-11-27 | 2015-03-11 | 中国人民解放军军械工程学院 | Reverberation room platform based method for testing electromagnetic environment effects of electronic system |
| CN105115585A (en) * | 2015-07-23 | 2015-12-02 | 南京大学 | Measuring method for reverberation time of reverberation room |
| CN105302992A (en) * | 2015-11-19 | 2016-02-03 | 上海无线电设备研究所 | Quick optimization and simulation design method for stirrer in reverberation chamber |
| CN106788794A (en) * | 2017-01-22 | 2017-05-31 | 北京邮电大学 | A kind of test system being applied in reverberation chamber |
| CN107864602A (en) * | 2017-10-11 | 2018-03-30 | 北京无线电计量测试研究所 | A kind of reverberation chamber wall-through motor and screen method |
| CN108061836A (en) * | 2017-12-26 | 2018-05-22 | 北京中科国技信息系统有限公司 | Stir electromagnetism reverberation unit and its stirring means in source |
| CN108318758A (en) * | 2018-01-23 | 2018-07-24 | 南京航空航天大学 | Super surface reverberation chamber |
| CN109613371A (en) * | 2018-12-24 | 2019-04-12 | 中国人民解放军陆军工程大学 | Portable strong electromagnetic environmental simulation test platform and test method |
| CN110082608A (en) * | 2019-04-28 | 2019-08-02 | 西安交通大学 | A kind of electricity reducing reverberation chamber uncertainty of measurement adjusts the source stirring means of electromagnetic wave orbital angular momentum mode |
| CN111337786A (en) * | 2020-04-24 | 2020-06-26 | 中国人民解放军63892部队 | Design method of line stirrer for improving field uniformity of reverberation chamber |
| CN112485538A (en) * | 2020-11-03 | 2021-03-12 | 飞特质科(北京)计量检测技术有限公司 | System for improving calibration precision of radio frequency radiation sensitivity of reverberation room |
| CN114034950A (en) * | 2021-10-29 | 2022-02-11 | 西安空间无线电技术研究所 | System and method for testing electromagnetic leakage degree of aerospace passive product based on reverberation chamber |
| CN114884586A (en) * | 2022-04-02 | 2022-08-09 | 深圳市通用测试系统有限公司 | Stirrer for reverberation chamber and reverberation chamber with same |
| CN114884586B (en) * | 2022-04-02 | 2024-04-30 | 深圳市通用测试系统有限公司 | Stirrer for reverberation room and reverberation room with same |
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- 2014-07-01 CN CN201410308595.7A patent/CN104133126A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104407248A (en) * | 2014-11-27 | 2015-03-11 | 中国人民解放军军械工程学院 | Reverberation room platform based method for testing electromagnetic environment effects of electronic system |
| CN104407248B (en) * | 2014-11-27 | 2016-03-02 | 中国人民解放军军械工程学院 | A kind of electronic system electromagnetic environmental effects test method based on reverberation chamber platform |
| CN105115585A (en) * | 2015-07-23 | 2015-12-02 | 南京大学 | Measuring method for reverberation time of reverberation room |
| CN105302992A (en) * | 2015-11-19 | 2016-02-03 | 上海无线电设备研究所 | Quick optimization and simulation design method for stirrer in reverberation chamber |
| CN106788794A (en) * | 2017-01-22 | 2017-05-31 | 北京邮电大学 | A kind of test system being applied in reverberation chamber |
| CN107864602A (en) * | 2017-10-11 | 2018-03-30 | 北京无线电计量测试研究所 | A kind of reverberation chamber wall-through motor and screen method |
| CN108061836A (en) * | 2017-12-26 | 2018-05-22 | 北京中科国技信息系统有限公司 | Stir electromagnetism reverberation unit and its stirring means in source |
| CN108318758A (en) * | 2018-01-23 | 2018-07-24 | 南京航空航天大学 | Super surface reverberation chamber |
| CN109613371A (en) * | 2018-12-24 | 2019-04-12 | 中国人民解放军陆军工程大学 | Portable strong electromagnetic environmental simulation test platform and test method |
| CN110082608A (en) * | 2019-04-28 | 2019-08-02 | 西安交通大学 | A kind of electricity reducing reverberation chamber uncertainty of measurement adjusts the source stirring means of electromagnetic wave orbital angular momentum mode |
| CN110082608B (en) * | 2019-04-28 | 2020-07-28 | 西安交通大学 | Source stirring method of electrically-adjusted electromagnetic wave orbit angular momentum mode for reducing uncertainty of measurement of reverberation chamber |
| CN111337786A (en) * | 2020-04-24 | 2020-06-26 | 中国人民解放军63892部队 | Design method of line stirrer for improving field uniformity of reverberation chamber |
| CN111337786B (en) * | 2020-04-24 | 2023-02-24 | 中国人民解放军63892部队 | Design method of line stirrer for improving field uniformity of reverberation chamber |
| CN112485538A (en) * | 2020-11-03 | 2021-03-12 | 飞特质科(北京)计量检测技术有限公司 | System for improving calibration precision of radio frequency radiation sensitivity of reverberation room |
| CN114034950A (en) * | 2021-10-29 | 2022-02-11 | 西安空间无线电技术研究所 | System and method for testing electromagnetic leakage degree of aerospace passive product based on reverberation chamber |
| CN114884586A (en) * | 2022-04-02 | 2022-08-09 | 深圳市通用测试系统有限公司 | Stirrer for reverberation chamber and reverberation chamber with same |
| CN114884586B (en) * | 2022-04-02 | 2024-04-30 | 深圳市通用测试系统有限公司 | Stirrer for reverberation room and reverberation room with same |
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Application publication date: 20141105 |
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