CN201897616U - Array antenna amplitude-phase detecting device - Google Patents
Array antenna amplitude-phase detecting device Download PDFInfo
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- CN201897616U CN201897616U CN2010205866169U CN201020586616U CN201897616U CN 201897616 U CN201897616 U CN 201897616U CN 2010205866169 U CN2010205866169 U CN 2010205866169U CN 201020586616 U CN201020586616 U CN 201020586616U CN 201897616 U CN201897616 U CN 201897616U
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Abstract
An array antenna amplitude-phase detecting device comprises a detecting antenna, an upper shielding cavity and a lower shielding cavity. The upper shielding cavity and the lower shielding cavity are made of metal materials and in cylindrical shapes; the inner diameters and the outer diameters of the upper shielding cavity and the lower shielding cavity are the same; the height of the lower shielding cavity is larger than the longitudinal height of an array element to be detected; direction indicating lines for being aligned to the detecting antenna and the rotational direction of the array element to be detected are respectively marked on the outsides of the upper shielding cavity and the lower shielding cavity; and the detecting antenna is fixed to one end of the upper shielding cavity by the aid of a fastening part. Besides including the detecting antenna, the device is further provided with a metal shielding cavity consisting of the upper portion and the lower portion, has positioning, directional and electromagnetic isolating functions, and solves the problems of an existing universal antenna amplitude-phase detecting device, and amplitude-phase detecting errors are reduced.
Description
Technical field
The utility model relates to a kind of array antenna width of cloth phase pick-up unit, belongs to radar antenna and relates to the field.
Background technology
For the circular polarisation phased array antenna, unit form is a microband paste, take blind connection-peg ways of connecting between antenna element and the TR assembly, before carrying out the far-field pattern test, be necessary the width of cloth of bay is detected mutually, one checks the blind slotting mode of employing, and whether array element is tight with being connected of TR assembly; Two come also can verify whether consistent with the requirement of wave beam emulation the width of cloth of each array element distributes mutually.
The device that is used at present detection arrays sky wire spoke phase both at home and abroad has following two kinds: a kind of pick-up unit form is a symmetrical dipole, requires its length L to be shorter than measured piece usually, and two arm lengths must be symmetrical, and feed partly adopts two-wire symmetrical expression evener.During test, symmetrical dipole is placed near the array element to be measured, or hang on the array element to be measured, hook adopts insulating material, keep each position of placing identical as far as possible.Another kind of pick-up unit adopts the gimbal form, and ring can be round, also can be rectangle.Its size＜＜λ, the outward appearance symmetry, its locator meams is identical with above-mentioned symmetrical dipole.
All there is certain problem in these two kinds of pick-up units, and there is error in the result that can cause day wire spoke to detect mutually.Specifically describe as follows: pick-up unit is to carry out under open environment, is subjected to the interference of electromagnetic signal on every side easily, brings error to testing result; Pick-up unit adopts hook or manually is placed near or the top of tested array element, and height, relative position and polarised direction are difficult to fix between detection antenna and the tested array element, introduce width of cloth phase test error easily.
The utility model content
Technology of the present utility model is dealt with problems and is: overcome the deficiencies in the prior art, a kind of array antenna width of cloth phase pick-up unit is provided, reduced width of cloth phase test error.
Technical solution of the present utility model is: a kind of array antenna width of cloth phase pick-up unit, form by detecting antenna, last shielding cavity and following shielding cavity, last shielding cavity, following shielding cavity adopt metal material, be shaped as cylindric, the internal diameter of the two is identical with external diameter, the height of following shielding cavity is greater than vertical height of array element to be measured, last shielding cavity respectively indicates the sense of rotation that the direction index line is used for aim detecting antenna and array element to be measured with the following shielding cavity outside, and the detection antenna is fixed together by an end of securing member and last shielding cavity.
Described detection antenna is the microband paste unit, and its frequency of operation, polarization performance are identical with array element to be measured.
The utility model advantage compared with prior art is: the present invention proposes a kind of novel front width of cloth phase pick-up unit, this device detects the antenna except that comprising, also increased a metallic shield cavity, shielding cavity is made of two parts cavity up and down, location, orientation and electromagnetic isolation effect have been played, solve the present general existing problem of sky wire spoke phase pick-up unit, reduced width of cloth phase test error.
Description of drawings
Fig. 1 is a composition structural representation of the present utility model;
Fig. 2 is use principle figure of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done further detailed description:
As shown in Figure 1, pick-up unit of the present utility model constitutes by detecting antenna 1, last shielding cavity 2 and following shielding cavity 3.Detect antenna 1 and adopt the microband paste form, its frequency of operation is identical with array element to be measured with polarization performance, and is fixed together by securing member and last shielding cavity 2; Upper and lower shielding cavity is a metal material, adopts cylinder-like structure, and the two has identical inside/outside diameter size, and barrel bore should guarantee not to do big under the prerequisite that interferes with other adjacent array element as far as possible.Lower chamber 3 highly is greater than vertical height of array element to be measured; The upper and lower shielding cavity outside respectively indicates " a direction index line " 4, is used for the sense of rotation of aim detecting antenna and array element to be measured.
This Device Testing method is for vowing the method for testing of net Circuits System S21 parameter, the tested array element 5 of a termination of vector network analyzer 7, and the circularly polarization microstrip patch unit of another termination and tested array element 5 identical working frequency range promptly detects antenna 1.Test philosophy as shown in Figure 2, during test, with radiation array element horizontal positioned, lower chamber 3 is covered on the array element 5 to be measured, adjust its position and direction, make array element 5 geometric centers to be measured place on the lower chamber axis, the sensing of direction index line 4 is consistent on array element 5 reference directions to be measured and the cavity; Be stacked on the lower chamber 3 the last shielding cavity 2 that detects antenna 1 being installed and putting, guarantee two coaxial placements of cavity, and index line points to 4 unanimities, like this, the radiating system of opening has just formed the Circuits System of a closure.Utilize the method for testing of Circuits System S21 parameter, and change array element to be measured successively, just can obtain the relative amplitude and the phase place of whole each array element of radiation front, numbering 6 is active feeding network.
This kind sky wire spoke phase pick-up unit has solved following problem:
At first, because the shielding action of metallic cavity, test process can not be subjected to the influence of surrounding environment, and test result has accurate, stable advantage.Need to prove, because the shielding action of metallic cavity, become a resonator cavity in the closed Circuits System, detect the coupling between antenna and the tested antenna, they are changed at coupling separately, and the width of cloth phase testing result of passage also is that the width of cloth phase testing result of tested antenna has certain error like this.But on the identical constant amplitude phased array antenna of unit form, each unit under test is consistent with the error that coupling caused that detects between the antenna, so the relative Amplitude phase testing result of unit under test is accurately.The internal diameter of metallic cavity will be under situation about not disturbing with adjacent array element to be measured, and is big as far as possible, to increase the radiation border of antenna system.
Secondly, this metallic shield housing depth is fixed, thereby has guaranteed that the height that detects between antenna and the array element to be measured remains unchanged, and has avoided detecting antenna and has placed highly inconsistent and width of cloth phase test error (mainly being phase error) that introduce;
The 3rd, the position of array element can guarantee that the geometric center with array element to be measured is placed on the center of lower chamber around can reaching with reference to array element to be measured when placing lower chamber.Fix with the relative position of antenna to be measured for making each when test detect antenna, two-layer about metallic cavity is divided into, cavity is coaxial up and down, and interior external diameter is concyclic.During each the test lower chamber center of circle is overlapped with the center of array element to be measured, again with upper cavity and lower chamber is coaxial is stacked together, so just guaranteed that the relative position that detects antenna and antenna to be measured remains unchanged, and has avoided detecting the width of cloth phase test error that the aerial position deviation is introduced;
The 4th, the upper and lower cavity of shielding cavity all indicates " direction index line ", direction index line with lower chamber in the operation is adjusted into consistent with the reference direction of array element to be measured, making up and down again, the index line of cavity overlaps, because upper cavity adopts securing member to link to each other with detecting between the antenna, so just guarantee antenna to be measured and detected that the polarization direction remains unchanged between antenna, avoided the two direction inconsistent and introduce width of cloth phase test error.
After using this width of cloth phase pick-up unit that each array element of phased array antenna is detected, obtained following effect: the width of cloth phase data that detect array radiation actinal surface effectively, not only comprise the intrinsic width of cloth phase performance of active feeding network in these width of cloth phase data, also comprised between front and the active feeding network amplitude phase error that the inconsistency that produces in amplitude phase error that " blind inserting " joint introduces and the radiating element process is introduced; Carry out simulation analysis by the width of cloth phase data that this pick-up unit is recorded, can obtain the antenna pattern of this multi-beam phased array antenna, this analysis result is consistent with the far field measured result.
The utility model not detailed description is a technology as well known to those skilled in the art.
Claims (2)
1. array antenna width of cloth phase pick-up unit, it is characterized in that: form by detecting antenna, last shielding cavity and following shielding cavity, last shielding cavity, following shielding cavity adopt metal material, be shaped as cylindric, the internal diameter of the two is identical with external diameter, the height of following shielding cavity is greater than vertical height of array element to be measured, last shielding cavity respectively indicates the sense of rotation that the direction index line is used for aim detecting antenna and array element to be measured with the following shielding cavity outside, and the detection antenna is fixed together by an end of securing member and last shielding cavity.
2. a kind of array antenna width of cloth phase pick-up unit according to claim 1, it is characterized in that: described detection antenna is the microband paste unit, its frequency of operation, polarization performance are identical with array element to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205866169U CN201897616U (en) | 2010-10-27 | 2010-10-27 | Array antenna amplitude-phase detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205866169U CN201897616U (en) | 2010-10-27 | 2010-10-27 | Array antenna amplitude-phase detecting device |
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| Publication Number | Publication Date |
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| CN201897616U true CN201897616U (en) | 2011-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010205866169U Expired - Lifetime CN201897616U (en) | 2010-10-27 | 2010-10-27 | Array antenna amplitude-phase detecting device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967772A (en) * | 2012-11-09 | 2013-03-13 | 清华大学 | Two-dimension full automatic electromagnetic field distribution testing system |
| CN103135083A (en) * | 2011-11-24 | 2013-06-05 | 西安电子科技大学 | Electromagnetic vector sensor array amplitude and phase error self-correcting method based on array rotation |
| CN106199219A (en) * | 2016-06-29 | 2016-12-07 | 四川莱源科技有限公司 | A kind of patch microstrip antenna detecting system |
| CN110024223A (en) * | 2016-10-18 | 2019-07-16 | 瑞典爱立信有限公司 | Conduction-type OTA test fixture |
| CN110380238A (en) * | 2019-07-20 | 2019-10-25 | 中国船舶重工集团公司第七二四研究所 | A kind of paster antenna of the interior monitoring line of same layer integrated RF |
| CN113504419A (en) * | 2021-09-13 | 2021-10-15 | 中国电子科技集团公司第二十九研究所 | Phase test fixture of integrated metal slot array antenna |
-
2010
- 2010-10-27 CN CN2010205866169U patent/CN201897616U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103135083A (en) * | 2011-11-24 | 2013-06-05 | 西安电子科技大学 | Electromagnetic vector sensor array amplitude and phase error self-correcting method based on array rotation |
| CN103135083B (en) * | 2011-11-24 | 2015-05-13 | 西安电子科技大学 | Electromagnetic vector sensor array amplitude and phase error self-correcting method based on array rotation |
| CN102967772A (en) * | 2012-11-09 | 2013-03-13 | 清华大学 | Two-dimension full automatic electromagnetic field distribution testing system |
| CN106199219A (en) * | 2016-06-29 | 2016-12-07 | 四川莱源科技有限公司 | A kind of patch microstrip antenna detecting system |
| CN110024223A (en) * | 2016-10-18 | 2019-07-16 | 瑞典爱立信有限公司 | Conduction-type OTA test fixture |
| US10910729B2 (en) | 2016-10-18 | 2021-02-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Conducted OTA test fixture |
| CN110024223B (en) * | 2016-10-18 | 2021-12-10 | 瑞典爱立信有限公司 | Conduction type OTA test fixture |
| CN110380238A (en) * | 2019-07-20 | 2019-10-25 | 中国船舶重工集团公司第七二四研究所 | A kind of paster antenna of the interior monitoring line of same layer integrated RF |
| CN110380238B (en) * | 2019-07-20 | 2020-12-18 | 中国船舶重工集团公司第七二四研究所 | Patch antenna with same-layer integrated radio frequency inner monitoring line |
| CN113504419A (en) * | 2021-09-13 | 2021-10-15 | 中国电子科技集团公司第二十九研究所 | Phase test fixture of integrated metal slot array antenna |
| CN113504419B (en) * | 2021-09-13 | 2021-11-19 | 中国电子科技集团公司第二十九研究所 | Phase test fixture of integrated metal slot array antenna |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110713 |
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| CX01 | Expiry of patent term |