CN104466345A - Antenna, low noise amplifier and frequency mixer connection mechanism - Google Patents
Antenna, low noise amplifier and frequency mixer connection mechanism Download PDFInfo
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- CN104466345A CN104466345A CN201410710494.2A CN201410710494A CN104466345A CN 104466345 A CN104466345 A CN 104466345A CN 201410710494 A CN201410710494 A CN 201410710494A CN 104466345 A CN104466345 A CN 104466345A
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- frequency mixer
- pressing plate
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- lna
- front baffle
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Abstract
The invention discloses an antenna, low noise amplifier and frequency mixer connection mechanism. The connection mechanism comprises an antenna, a waveguide, a low noise amplifier, a frequency mixer and a supporting system. The antenna, the low noise amplifier and the frequency mixer are sequentially connected through the waveguide. A first front baffle of the supporting system and a second front baffle of the supporting system are fixedly connected together through front baffle supporting beams. The second front baffle is fixedly connected with a connection flange through supporting beams. Pressing plate clamping rings are fixedly arranged on the supporting beams. A clamping groove is radially formed in each pressing plate clamping ring. A frequency mixer pressing plate is clamped in the clamping grooves in the pressing plate clamping rings in a sleeving mode. A frequency mixer supporting plate is fixedly connected with the frequency mixer. One end of the frequency mixer supporting plate and the frequency mixer pressing plate are vertically fixed. Both the first front baffle and the second front baffle are provided with corresponding center holes. A rotating disc penetrates through the center hole of the first front baffle and the center hole of the second front baffle. The antenna is arranged at the front end of the first front baffle. The waveguide penetrates through the rotating disc and is connected with the low noise amplifier. The waveguide penetrates through the frequency mixer pressing plate and is connected with the frequency mixer.
Description
Technical field
The present invention relates to bindiny mechanism's technical field, be specifically related to a kind of antenna, LNA and frequency mixer bindiny mechanism.
Background technology
Along with the development of the research of stealthy, anti-stealth technololgy and satellite technology, the precision that advanced capabilities radar antenna, radome characteristic test and radar target RCS are tested and functional requirement more and more higher.General means of testing comprises far field test, near-field test, Compact Range test etc., and wherein wide with Compact Range Test Application scope, the advantages such as measuring accuracy is high, easy to use are subject to people's attention day by day.
By calibrating Compact Range quiet zone performance, whether the quiet zone performance can grasping Compact Range test macro meets test index requirement, can be the uncertainty of measurement that analysis to measure result introduces and real data is provided, can offer help to Compact Range laboratory evaluation accurately; And by regular Compact Range performance calibration, can monitor Compact Range test macro performance, the measuring technique ability in each Compact Range laboratory of effective checking, can also identify and find each Compact Range laboratory Problems existing, thus can take corrective action, client to laboratory provides higher confidence level, to ensure the accurate reliability of the antenna, radome and the target RCS test result that use in weapon model.
The probe receiver that antenna is calibrated as Compact Range quiet zone performance, it is accurately positioned in the accuracy affecting calibration to a certain extent.Due to when frequency is lower than 40GHz, can directly use vector network analyzer Received signal strength, and when carrying out Compact Range Performance Detection in 40GHz ~ 110GHz frequency range, the signal frequency that reception antenna receives is very high, reach as high as 110GHz, and the highest receive frequency of the existing receiver of system only arrives 40GHz, so need to connect frequency mixer, the high-frequency signal received is mixed to the receivable frequency range of receiver, there is no the receiver of high frequency at present, can only frequency mixer be used; Simultaneously because the electromagnetic wave signal intensity of reception antenna reception is very weak, the signal input power requirement of frequency mixer cannot be reached, frequency mixer cannot be made to reach optimum Working, thus need to use LNA, so need to carry out relevant design to the connection of antenna, LNA and frequency mixer.
All there is the experience of carrying out Compact Range Performance Detection both at home and abroad at present, but due to the environment for use of each Construction Party and system building different, thus the connection of antenna, LNA and frequency mixer is all not quite similar, and the bindiny mechanism of its antenna, LNA and frequency mixer does not all possess the function that corner regulates, and this have impact on usability to a certain extent.
Therefore, need to provide a kind of antenna, LNA and frequency mixer bindiny mechanism, this mechanism can also regulate corner while positioning antenna, LNA and mixer-system, increases its applicability.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of antenna, LNA and frequency mixer bindiny mechanism, solve the connectivity problem of antenna, LNA and frequency mixer in the calibration of large-scale Compact Range quiet zone performance, can position antenna, LNA, frequency mixer and Wave guide system, and the angle of antenna, LNA, frequency mixer and Wave guide system can be regulated.
For solving the problems of the technologies described above, the present invention adopts following technical proposals:
A kind of antenna, LNA and frequency mixer bindiny mechanism, described bindiny mechanism comprises antenna, waveguide, LNA, frequency mixer and support system, and described antenna, LNA are connected by waveguide successively with frequency mixer;
Described support system comprises adpting flange, brace summer, frequency mixer supporting plate, frequency mixer pressing plate, pressing plate snap ring, the first front baffle board, the second front baffle board, front apron brace summer and rotating disk, described first front baffle board and the second front baffle board are fixed together by front apron brace summer, and described second front baffle board and adpting flange are fixed together by brace summer;
Described pressing plate snap ring is packed on brace summer, and the radial direction of described pressing plate snap ring is provided with draw-in groove, and described frequency mixer pressure board is enclosed within the draw-in groove of pressing plate snap ring;
Described frequency mixer supporting plate and frequency mixer are solidly installed, and one end of described frequency mixer supporting plate is vertical with frequency mixer pressing plate to be fixed, and the other end of described frequency mixer supporting plate is provided with the arc matched with adpting flange internal diameter;
Described first front apron and the second front apron are equipped with corresponding centre bore, and described rotating disk is through the centre bore of the first front apron and the centre bore of the second front apron;
The front end of the first front apron is located at by described antenna, and described waveguide is connected with LNA through rotating disk, and described waveguide is connected with frequency mixer through frequency mixer pressing plate.
Preferably, the draw-in groove of described pressing plate snap ring has the arc matched with frequency mixer pressing plate external diameter.
Preferably, described support system also comprises lock-screw, and described rotating disk is provided with screwed hole, and described lock-screw is screwed onto in screwed hole.
Preferably, described support system also comprises frequency mixer back-up ring, and described frequency mixer supporting plate is vertical with frequency mixer pressing plate affixed by screw and frequency mixer back-up ring.
Preferably, the front portion of described rotating disk is provided with small boss.
Preferably, the material of described rotating disk is polytetrafluoroethylene.
Beneficial effect of the present invention is as follows:
A kind of antenna of the present invention, LNA and frequency mixer bindiny mechanism are owing to have employed above technical scheme, can to antenna, LNA and frequency mixer supporting and location, frequency mixer supporting plate is provided with the arc matched with adpting flange internal diameter, frequency mixer supporting plate can be made to rotate along adpting flange inner circle, the draw-in groove of pressing plate snap ring has the arc matched with frequency mixer pressing plate external diameter, frequency mixer pressing plate can be made to rotate along the draw-in groove of pressing plate snap ring, so frequency mixer can relatively rotate relative to adpting flange, regulate the relative rotation of antenna, LNA and frequency mixer with this.Rotating disk can rotate along the axis of the first front apron and the second front apron, can regulate the contact point of lock-screw and waveguide paper, adapt to the waveguide of different profile.This bindiny mechanism's easy accessibility, forms facility for changing antenna, LNA, frequency mixer and Wave guide system.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 illustrates the perspective view of a kind of antenna of the present invention, LNA and frequency mixer bindiny mechanism.
Fig. 2 illustrates the left side structure schematic diagram of a kind of antenna of the present invention, LNA and frequency mixer bindiny mechanism.
Fig. 3 illustrates the frequency mixer support board structure schematic diagram of a kind of antenna of the present invention, LNA and frequency mixer bindiny mechanism.
Fig. 4 illustrates the turntable structure schematic diagram of a kind of antenna of the present invention, LNA and frequency mixer bindiny mechanism.
Fig. 5 illustrates the lock-screw structural representation of a kind of antenna of the present invention, LNA and frequency mixer bindiny mechanism.
In figure, each mark is as follows: 1 antenna, 2 waveguides, 3 LNA, 4 frequency mixers, 5 first front aprons, 6 rotating disks, 7 second front aprons, 8 front apron brace summers, 9 lock-screws, 10 brace summers, 11 pressing plate snap rings, 12 frequency mixer pressing plates, 13 frequency mixer back-up rings, 14 frequency mixer supporting plates, 15 adpting flanges.
Embodiment
In order to be illustrated more clearly in the present invention, below in conjunction with preferred embodiments and drawings, the present invention is described further.Parts similar in accompanying drawing represent with identical Reference numeral.It will be appreciated by those skilled in the art that specifically described content is illustrative and nonrestrictive, should not limit the scope of the invention with this below.
As depicted in figs. 1 and 2, a kind of antenna, LNA and frequency mixer bindiny mechanism, described bindiny mechanism comprises antenna 1, waveguide 2, LNA 3, frequency mixer 4 and support system, and described antenna 1, LNA 3 are connected by waveguide 2 successively with frequency mixer 4; Described support system comprises adpting flange 15, brace summer 10, frequency mixer supporting plate 14, frequency mixer pressing plate 12, pressing plate snap ring 11, first front baffle board 5, second front baffle board 7, front apron brace summer 8 and rotating disk 6, described first front baffle board 5 and the second front baffle board 7 are fixed together by front apron brace summer 8, and described second front baffle board 7 and adpting flange 15 are fixed together by brace summer 10.Described adpting flange 15 is connected for other motions in calibrating with large-scale Compact Range quiet zone performance.
Described pressing plate snap ring 11 is packed on brace summer 10, and the radial direction of described pressing plate snap ring 11 is provided with draw-in groove, and described frequency mixer pressing plate 12 is fastened in the draw-in groove of pressing plate snap ring 11; The draw-in groove of described pressing plate snap ring 11 has the arc matched with frequency mixer pressing plate 12 external diameter.
Described frequency mixer supporting plate 14 is solidly installed by screw with frequency mixer 4, described support system also comprises frequency mixer back-up ring 13, one end of described frequency mixer supporting plate 14 is vertical with frequency mixer pressing plate 12 affixed by screw and frequency mixer back-up ring 13, and the other end of described frequency mixer supporting plate 14 is provided with the arc matched with adpting flange 15 internal diameter.The Main Function of described frequency mixer supporting plate 14 holds frequency mixer 4, positions the vertical direction of frequency mixer 4.The Main Function of described frequency mixer pressing plate 12 pushes down frequency mixer 4, positions the horizontal direction of frequency mixer 4.
Described first front apron 5 and the second front apron 7 are equipped with corresponding centre bore, and described rotating disk 6 is through the centre bore of the first front apron 5 and the centre bore of the second front apron 7; The front end of the first front apron 5 is located at by described antenna 1, and described waveguide 2 is connected with LNA 3 through rotating disk 6, and described waveguide 2 is connected with frequency mixer 4 through frequency mixer pressing plate 12.
Described support system also comprises lock-screw 9, and described rotating disk 6 is provided with screwed hole, and described lock-screw 9 is screwed onto in screwed hole.Lock-screw 9 can adjust stroke by the screwed hole on rotating disk 6, thus adapts to the waveguide 2 of different size.
The material that described rotating disk 6 adopts coefficient of friction little, such as polytetrafluoroethylene.The front portion of described rotating disk 6 is provided with small boss, rotates the rotation that small boss drives rotating disk 6.
Certain connection surplus is left in described frequency mixer supporting plate 14 rear end, can adapt to the change of frequency mixer 4 certain size.
Frequency mixer supporting plate 14 is provided with the arc matched with adpting flange 15 internal diameter, frequency mixer supporting plate 14 can be made to rotate along adpting flange 15 inner circle, the draw-in groove of the radial direction of pressing plate snap ring 11 has the arc matched with frequency mixer pressing plate 12 external diameter, frequency mixer pressing plate 12 can be made to rotate vertically in the draw-in groove of pressing plate snap ring 11, so frequency mixer 4 can relatively rotate relative to adpting flange 15, regulate the relative rotation of antenna 1, LNA 2 and frequency mixer 4 with this.The material that rotating disk 6 adopts coefficient of friction little, can rotate along the axis of the first front apron 5 and the second front apron 7, can regulate the contact point between lock-screw 9 and waveguide 2, adapt to the waveguide 2 of different profile.
Obviously; the above embodiment of the present invention is only for example of the present invention is clearly described; and be not the restriction to embodiments of the present invention; for those of ordinary skill in the field; can also make other changes in different forms on the basis of the above description; here cannot give exhaustive to all execution modes, every belong to technical scheme of the present invention the apparent change of extending out or variation be still in the row of protection scope of the present invention.
Claims (6)
1. an antenna, LNA and frequency mixer bindiny mechanism, it is characterized in that: described bindiny mechanism comprises antenna (1), waveguide (2), LNA (3), frequency mixer (4) and support system, described antenna (1), LNA (3) are connected by waveguide (2) successively with frequency mixer (4);
Described support system comprises adpting flange (15), brace summer (10), frequency mixer supporting plate (14), frequency mixer pressing plate (12), pressing plate snap ring (11), the first front baffle board (5), the second front baffle board (7), front apron brace summer (8) and rotating disk (6), described first front baffle board (5) and the second front baffle board (7) are fixed together by front apron brace summer (8), and described second front baffle board (7) and adpting flange (15) are fixed together by brace summer (10);
Described pressing plate snap ring (11) is packed on brace summer (10), and the radial direction of described pressing plate snap ring (11) is provided with draw-in groove, and described frequency mixer pressing plate (12) is fastened in the draw-in groove of pressing plate snap ring (11);
Described frequency mixer supporting plate (14) and frequency mixer (4) are solidly installed, one end of described frequency mixer supporting plate (14) is vertical with frequency mixer pressing plate (12) to be fixed, and the other end of described frequency mixer supporting plate (14) is provided with the arc matched with adpting flange (15) internal diameter;
Described first front apron (5) and the second front apron (7) are equipped with corresponding centre bore, the centre bore of described rotating disk (6) through the first front apron (5) and the centre bore of the second front apron (7);
The front end of the first front apron (5) is located at by described antenna (1), described waveguide (2) is connected with LNA (3) through rotating disk (6), and described waveguide (2) is connected with frequency mixer (4) through frequency mixer pressing plate (12).
2. a kind of antenna according to claim 1, LNA and frequency mixer bindiny mechanism, is characterized in that: the draw-in groove of described pressing plate snap ring (11) has the arc matched with frequency mixer pressing plate (12) external diameter.
3. a kind of antenna according to claim 1, LNA and frequency mixer bindiny mechanism, it is characterized in that: described support system also comprises lock-screw (9), described rotating disk (6) is provided with screwed hole, and described lock-screw (9) is screwed onto in screwed hole.
4. a kind of antenna according to claim 1, LNA and frequency mixer bindiny mechanism, it is characterized in that: described support system also comprises frequency mixer back-up ring (13), described frequency mixer supporting plate (14) is vertical affixed with frequency mixer pressing plate (12) with frequency mixer back-up ring (13) by screw.
5. a kind of antenna according to claim 1, LNA and frequency mixer bindiny mechanism, is characterized in that: the front portion of described rotating disk (6) is provided with small boss.
6. a kind of antenna according to claim 5, LNA and frequency mixer bindiny mechanism, is characterized in that: the material of described rotating disk (6) is polytetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410710494.2A CN104466345B (en) | 2014-11-28 | 2014-11-28 | Antenna, low noise amplifier and frequency mixer connection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410710494.2A CN104466345B (en) | 2014-11-28 | 2014-11-28 | Antenna, low noise amplifier and frequency mixer connection mechanism |
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| Publication Number | Publication Date |
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| CN104466345A true CN104466345A (en) | 2015-03-25 |
| CN104466345B CN104466345B (en) | 2017-03-22 |
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| CN201410710494.2A Active CN104466345B (en) | 2014-11-28 | 2014-11-28 | Antenna, low noise amplifier and frequency mixer connection mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663665A (en) * | 2018-04-03 | 2018-10-16 | 北京环境特性研究所 | A kind of method and device of the uncertainty of determining Compact Range |
| CN109301508A (en) * | 2018-09-26 | 2019-02-01 | 北京无线电计量测试研究所 | It is a kind of for tightening the antenna assembly of field calibration |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108663665A (en) * | 2018-04-03 | 2018-10-16 | 北京环境特性研究所 | A kind of method and device of the uncertainty of determining Compact Range |
| CN108663665B (en) * | 2018-04-03 | 2020-03-31 | 北京环境特性研究所 | Method and device for determining uncertainty of compact range |
| CN109301508A (en) * | 2018-09-26 | 2019-02-01 | 北京无线电计量测试研究所 | It is a kind of for tightening the antenna assembly of field calibration |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104466345B (en) | 2017-03-22 |
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