CN104659487B - A kind of plain wave emissions Characteristics Detection antenna phase center adjusting means - Google Patents
A kind of plain wave emissions Characteristics Detection antenna phase center adjusting means Download PDFInfo
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- CN104659487B CN104659487B CN201410812485.4A CN201410812485A CN104659487B CN 104659487 B CN104659487 B CN 104659487B CN 201410812485 A CN201410812485 A CN 201410812485A CN 104659487 B CN104659487 B CN 104659487B
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- rail seat
- cross rail
- straight
- leading screw
- dovetail groove
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Abstract
The present invention discloses a kind of adjusting means of plain wave emissions Characteristics Detection antenna phase center, and its adjusting means includes support, cartridge type adjustment part, cross rail seat and vertical track base；Cartridge type adjustment part includes inner sleeve and is flatly installed in by the connected outer sleeve of straight-line ball leading screw, outer sleeve on support, and the end face of inner sleeve is provided with base；Cross rail seat is connected by straight-line ball leading screw with base, and the first dovetail groove to match is provided with contact surface；Cross rail seat slides in the presence of straight-line ball leading screw along the first dovetail groove, and the glide direction of cross rail seat and the angle of horizontal plane are 45 degree；Vertical track base is connected by straight-line ball leading screw with cross rail seat, and the second dovetail groove to match is provided with contact surface, vertical track base slides along the second dovetail groove, and the glide direction of vertical track base and the angle of horizontal plane are 45 degree and perpendicular with the glide direction of cross rail seat.The adjusting means is affected by gravity small, degree of regulation height.
Description
Technical field
The present invention relates to a kind of antenna phase center governor motion, more particularly to a kind of plain wave emissions Characteristics Detection day
Phase of line center adjustment device.
Background technology
Compact Range is using accurate reflecting surface or microwave lens, is transformed in the closely interior spherical wave for sending feed
The equipment of plane wave, its caused quasi-plane wave can fully meet the environment of antenna, antenna house electromagnetic property and target RCS tests
It is required that.
There are a variety of methods to the calibration of Compact Range quiet zone performance, most general method is scanning probe method in the world, i.e., with mark
Quasi- probe antenna directly carries out test assessment to the amplitude and phase of Compact Range test section plane-wave field, in probe antenna scanning method
In, according to an international practice and actual conditions, generally only to being detected on the typical section and typical azimuth in dead zone.
In the implementation process of scanning probe method, some performance indications of test equipment can all turn into the influence of Compact Range performance
The moving stability of factor, such as probe antenna.The frequency coverage of Compact Range test is non-in 0.3GHz~40GHz, frequency band
Constant width, the different frequent points of receiving transducer antenna and same probe antenna for different frequency range, its phase center are all changes
, in the frequency range of Compact Range test, the maximum space displacement of the Phase center variation of involved probe antenna exists
10cm~20cm magnitude.Amplitude and phase to Compact Range test section plane-wave field carry out needing to detect when test is assessed same
The width phase performance of different frequent points is, it is necessary to which the probe antenna phase center of different frequent points is adjusted on detection section on section.
Accordingly, it is desirable to provide a kind of probe antenna phase center governor motion, the mechanism disclosure satisfy that receiving transducer antenna
With the requirement of the uniformity of tested plan-position, because the physical dimension of low-frequency probe antenna is larger, heavier-weight, work as low-frequency probe
When antenna is arranged on phase center governor motion, easily make the adjustment mechanism of vertical direction on phase center governor motion by
Displacement is produced to the influence of gravity, so as to carry out error to Compact Range quiet zone performance calibration tape.
The present invention is that the locus of probe antenna phase center is adjusted according to probe antenna spoke phase behaviour, is received with reaching
The purpose of probe antenna phase centre location compensation, the phase center and tested plan-position for making each UHF band reception probe antenna are protected
Hold consistent, it is ensured that the accuracy (or uniformity) of Compact Range dead zone test result.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of regulation of plain wave emissions Characteristics Detection antenna phase center to fill
Put, the phase center apparatus for regulating is influenceed small by the gravity of probe antenna, and test is accurate.
In order to solve the above technical problems, the present invention uses following technical proposals：
A kind of adjusting means of plain wave emissions Characteristics Detection antenna phase center, the adjusting means include support, cartridge type
Adjust part, cross rail seat and vertical track base；The cartridge type adjustment part includes inner sleeve and passes through straight-line ball leading screw and its
The outer sleeve of connection, the outer sleeve are flatly installed on support, and one end of the inner sleeve is located at the inside of outer sleeve, institute
The other end for stating inner sleeve is provided with base, the axis perpendicular of the base and inner sleeve；The cross rail seat passes through straight
Line ball-screw is connected with base, and the cross rail seat is provided with the first dovetail groove to match with base contacts face；The horizontal stroke
Track base slides in the presence of straight-line ball leading screw along the first dovetail groove, the glide direction of the cross rail seat and horizontal plane
Angle is 45 degree；The vertical track base is connected by straight-line ball leading screw with the cross rail seat, and the vertical track base is led with horizontal
The contact surface of rail chair is provided with the second dovetail groove to match, and the vertical track base is in the presence of straight-line ball leading screw along second
Dovetail groove slides, the glide direction of the vertical track base and the angle of horizontal plane be 45 degree and with the glide direction phase of cross rail seat
Vertically.After said structure, detect the gravity suffered by antenna and undertaken by the first dovetail groove and the second dovetail groove, effectively subtracted
Lack the influence of the examined antenna gravity of straight-line ball leading screw, improve the precision of test.
Preferably, boss, the madial wall of the outer sleeve are arranged with the lateral wall of the inner sleeve in the axial direction
The groove matched with the boss is provided with, the inner sleeve slides in the position of straight-line ball leading screw along the groove.
Preferably, the cross section of the boss is T-shaped shape.
Preferably, the precision of the straight-line ball leading screw is less than or equal to 0.1mm.
Beneficial effects of the present invention are as follows：
The antenna phase in tested plane can be adjusted to consistent by the present invention, unified tested antenna parameter, played
Normalized effect.And the influence of the examined antenna gravity of straight-line ball leading screw is effectively reduced, improves the precision of test.
Brief description of the drawings
The embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 shows the structural representation of the present invention.
Fig. 2 shows the cross-sectional view of the cartridge type adjustment part of the present invention.
Fig. 3 shows the partial structural diagram of the present invention.
Embodiment
In order to illustrate more clearly of the present invention, the present invention is done further with reference to preferred embodiments and drawings
It is bright.Similar part is indicated with identical reference in accompanying drawing.It will be appreciated by those skilled in the art that institute is specific below
The content of description is illustrative and be not restrictive, and should not be limited the scope of the invention with this.
As shown in Figures 1 to 3, a kind of plain wave emissions Characteristics Detection antenna phase center adjusting means includes support 1, cartridge type
Adjust part 2, cross rail seat 3 and vertical track base 4.Cartridge type adjustment part 2 includes being the hollow cylindric He of outer sleeve 21
Inner sleeve 22, inner sleeve 22 are located at the inside of outer sleeve 21 and are slidably connected by straight-line ball leading screw and outer sleeve 21, inner sleeve
Cylinder 22 is fixedly installed base 23 in the end face outside of outer sleeve 21, and base 23 is perpendicular to the axis of inner sleeve 22, overcoat
Cylinder 21 is horizontally disposed on support 1.4 boss 25, boss 25 are arranged with the lateral wall of inner sleeve 22 in the axial direction
Cross section to be T-shaped, the madial wall of outer sleeve 21 is provided with the groove to match with boss 25.
Cross rail seat 3 is slidably connected by straight-line ball leading screw and base 23, and the contact of cross rail seat 3 and base 23
Face is provided with the first dovetail groove 24 being mutually matched, and cross rail seat 3 can be along the first dovetail in the presence of straight-line ball leading screw
Groove 24 slides, and the glide direction of cross rail seat 3 is horizontal by 45 degree.Vertical track base 4 passes through straight-line ball leading screw and cross rail
Seat 3 is slidably connected, and the contact surface of vertical track base 4 and cross rail seat 3 is provided with the second dovetail groove 31 being mutually matched, vertical to lead
Rail chair 4 can slide in the presence of straight-line ball leading screw along the second dovetail groove 31, indulge the glide direction and horizontal plane of track base 4
In 45 degree, and it is perpendicular with the glide direction of cross rail seat 3.The precision of straight-line ball leading screw is less than or equal to 0.1mm.Detect day
Line is fixedly installed on vertical track base 4 and moved with it, because the direction of motion of cross rail seat 3 and vertical track base 4 is and horizontal plane
In Oblique 45 Degree, detecting the gravity suffered by antenna can be undertaken respectively by the first dovetail groove 24 and the second dovetail groove 31, reduce
To the active force of straight-line ball leading screw, therefore improve the kinematic accuracy of whole adjusting means.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention, for those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms, all embodiments can not be exhaustive here, it is every to belong to this hair
Row of the obvious changes or variations that bright technical scheme is extended out still in protection scope of the present invention.
Claims (4)
- A kind of 1. adjusting means of plain wave emissions Characteristics Detection antenna phase center, it is characterised in that：The adjusting means includes Support, cartridge type adjustment part, cross rail seat and vertical track base；The cartridge type adjustment part includes inner sleeve and passes through straight-line ball The connected outer sleeve of leading screw, the outer sleeve are flatly installed on support, and one end of the inner sleeve is located at outer sleeve Inside, the other end of the inner sleeve is provided with base, the axis perpendicular of the base and inner sleeve；The cross rail Seat is connected by straight-line ball leading screw with base, and the cross rail seat and base contacts face are provided with the first dovetail groove, and described the One dovetail groove is opened on base, and the structure to match with the first dovetail groove is provided with the cross rail seat；The cross rail Seat slides in the presence of straight-line ball leading screw along the first dovetail groove, the glide direction of the cross rail seat and the angle of horizontal plane For 45 degree；The vertical track base is connected by straight-line ball leading screw with the cross rail seat, the vertical track base and cross rail seat Contact surface be provided with the second dovetail groove, second dovetail groove is opened on cross rail seat, is provided with the vertical track base The structure to match with the second dovetail groove, the vertical track base slide in the presence of straight-line ball leading screw along the second dovetail groove, The glide direction of the vertical track base and the angle of horizontal plane are 45 degree and perpendicular with the glide direction of cross rail seat.
- 2. adjusting means according to claim 1, it is characterised in that：It is right in the axial direction on the lateral wall of the inner sleeve Title is provided with boss, and the madial wall of the outer sleeve is provided with the groove matched with the boss, and the inner sleeve is in straight-line ball The position of leading screw slides along the groove.
- 3. adjusting means according to claim 2, it is characterised in that：The cross section of the boss is T-shaped shape.
- 4. adjusting means according to claim 1, it is characterised in that：The precision of the straight-line ball leading screw be less than or equal to 0.1mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410812485.4A CN104659487B (en) | 2014-12-23 | 2014-12-23 | A kind of plain wave emissions Characteristics Detection antenna phase center adjusting means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410812485.4A CN104659487B (en) | 2014-12-23 | 2014-12-23 | A kind of plain wave emissions Characteristics Detection antenna phase center adjusting means |
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| Publication Number | Publication Date |
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| CN104659487A CN104659487A (en) | 2015-05-27 |
| CN104659487B true CN104659487B (en) | 2018-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410812485.4A Active CN104659487B (en) | 2014-12-23 | 2014-12-23 | A kind of plain wave emissions Characteristics Detection antenna phase center adjusting means |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108168504B (en) * | 2017-12-26 | 2020-05-22 | 中国人民解放军战略支援部队信息工程大学 | Antenna rotation center calibration method based on fitting sphere center method |
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| CN1846139A (en) * | 2003-08-14 | 2006-10-11 | 成像微波技术应用公司 | Device and method for determining at least one variable associated with the electromagnetic radiation of an object being tested |
| CN102066955A (en) * | 2008-06-23 | 2011-05-18 | 微波视点公司 | Improvements in the determination of at least one value associated with the electromagnetic radiation of an object being tested |
| CN103126694A (en) * | 2011-11-24 | 2013-06-05 | 三星电子株式会社 | Medical imaging apparatus |
| CN103296426A (en) * | 2013-05-17 | 2013-09-11 | 北京航空航天大学 | High-precision detachable antenna four-dimensional motion device |
| CN103616569A (en) * | 2013-11-20 | 2014-03-05 | 中国电子科技集团公司第四十一研究所 | Method for correcting near-field test phases of millimeter wave plane |
| CN103994750A (en) * | 2014-05-29 | 2014-08-20 | 常州大学 | Three-axis stabilized platform angle detector for radar antenna and detection method thereof |
-
2014
- 2014-12-23 CN CN201410812485.4A patent/CN104659487B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1846139A (en) * | 2003-08-14 | 2006-10-11 | 成像微波技术应用公司 | Device and method for determining at least one variable associated with the electromagnetic radiation of an object being tested |
| CN102066955A (en) * | 2008-06-23 | 2011-05-18 | 微波视点公司 | Improvements in the determination of at least one value associated with the electromagnetic radiation of an object being tested |
| CN103126694A (en) * | 2011-11-24 | 2013-06-05 | 三星电子株式会社 | Medical imaging apparatus |
| CN103296426A (en) * | 2013-05-17 | 2013-09-11 | 北京航空航天大学 | High-precision detachable antenna four-dimensional motion device |
| CN103616569A (en) * | 2013-11-20 | 2014-03-05 | 中国电子科技集团公司第四十一研究所 | Method for correcting near-field test phases of millimeter wave plane |
| CN103994750A (en) * | 2014-05-29 | 2014-08-20 | 常州大学 | Three-axis stabilized platform angle detector for radar antenna and detection method thereof |
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| CN104659487A (en) | 2015-05-27 |
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