CN102394323B - Millimeter-wave wideband TE01-mode rotating joint - Google Patents
Millimeter-wave wideband TE01-mode rotating joint Download PDFInfo
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- CN102394323B CN102394323B CN201110198316.2A CN201110198316A CN102394323B CN 102394323 B CN102394323 B CN 102394323B CN 201110198316 A CN201110198316 A CN 201110198316A CN 102394323 B CN102394323 B CN 102394323B
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- waveguide
- circular waveguide
- rotational circle
- millimeter wave
- rotary joint
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Abstract
The invention relates to a rotating joint technology in the field of communication, and in particular discloses a millimeter-wave wideband TE01-mode rotating joint. The rotating joint is used for connecting a rotary circular waveguide with a fixed circular waveguide and comprises fixedly connecting parts and rotating parts; the entire rotating joint is of a rotational symmetric structure; each fixedly connecting part comprises a fixedly connecting plate and a connecting screw; each connecting screw penetrates through the corresponding fixedly connecting plate to be fixedly connected with the corresponding fixed circular waveguide; hollow cavities are respectively retained between the connecting plates and the rotary circular waveguides and between the connecting plates and the fixed circular waveguides; the rotating parts are arranged in the hollow cavities; the main body of each rotating part is a deep-grooved-ball rolling bearing sleeved on the outer wall of the corresponding rotary circular waveguide; and the outer wall of each deep-grooved-ball rolling bearing is tightly attached to the inner wall of the corresponding fixed circular waveguide. In the invention, the wideband, low-loss and high-efficiency transmission of a millimeter-wave over-mode signal can be realized; and the rotating joint has the advantages of being short in design cycle, compact in structure, low in cost, easy to process, convenient to install, etc.
Description
Technical field
The present invention relates to the rotary joint technology of the communications field, be specifically related to a kind of millimeter wave broadband TE
01mould rotary joint.
Background technology
In the application of modern radar system, communication system, in order to search for the locus of target, tracking target, measurement target, the antenna of system must rotate at any time.Rotary joint is constantly searched for the needs of target, tracking target and measurement target just at work in order to meet antenna, the important devices of microwave signal transformation task while completing antenna rotation.For example, open day is 2010.07.21, and publication number is CN 201532999U, and Chinese patent literature discloses straight type radio frequency coaxial rotary joint, and it comprises rotating part and the standing part of coaxial setting; Wherein, by plug, insulating bushing, adapter sleeve, swivel joint, bearing and back-up ring, form rotatable parts; By inner core, sleeve, insulating bushing etc., form another fixed part.This rotation joint structure is reliable, rotation is flexible, electrical contact performance is good; Good and the stable work in work of bandwidth, performance, is applicable to the frequency ranges such as MF, HF, VHF, UHF, can be widely used in communication antenna and transmitter and have in counterrotating system.
But along with the development of technology, radar, communication system operating frequency are extended to millimeter wave frequency band gradually.But in the loss of the main mould waveguide of millimeter wave frequency band, constantly increase, be unfavorable for the high efficiency of transmission of signal, for example TE
01the advantage little etc. higher mode loss just manifested out, and the mode that therefore increasing millimeter-wave systems starts to adopt overmoded waveguide to propagate higher mode reduces the loss in transmission, improves effectiveness.From disclosed documents and materials, domestic not about TE at present
01the report of mould rotary joint, external also without detailed Introduction of Literatures.Therefore, develop a kind of millimeter wave broadband TE based on overmoded waveguide
01mould rotary joint will be with a wide range of applications.
Summary of the invention
The invention provides a kind of based on the circular TE of millimeter wave
01mould rotary joint is crossed in the broadband of mould waveguide, can be in rotary joint smooth rotation, and realize good broadband, low-loss, high efficiency millimeter wave and cross the transmission of mould signal.
Object of the present invention is specifically achieved through the following technical solutions:
A kind of millimeter wave broadband TE
01mould rotary joint, is characterized in that: for connecting rotational circle waveguide and fixing circular waveguide, comprising, be fixedly connected with part and rotating part, described rotary joint entirety is rotational symmetry structure; Be fixedly connected with part and comprise fixed connecting plate, attachment screw, attachment screw will be fixed circular waveguide through fixed connecting plate and be connected and fixed, and between fixed connecting plate and rotational circle waveguide, fixing circular waveguide, leave cavity; Rotating part is arranged in cavity, and main body is the rolling bearing being sleeved on rotational circle waveguide outer wall, and the outer wall of rolling bearing is close to the inwall of fixing circular waveguide.
Further, rotating part comprises two rolling bearings that are set up in parallel, between two rolling bearings, be also set side by side with tuning nut, tuning nut is close to the side inwards of two rolling bearings, tuning nut is for guaranteeing the level and smooth rotation of bearing, and the cavity clearance size between tunable rotational circle waveguide and fixing circular waveguide.
Two sides towards outside of described two rolling bearings, a side is affixed on fixed connecting plate, and another side is by being installed on locking nut and the lock-screw locking on rotational circle waveguide outer wall.
Described rolling bearing is deep-groove ball rolling bearing.
Further, described rotational circle waveguide and fixing circular waveguide are millimeter wave TE
01mould circular waveguide, both leave choke groove between inwall, leave the little gap circumferential weld of connection between inwall and end, axle center.
Beneficial effect of the present invention is as follows:
The present invention takes " TE
01the waveguide of mould rotational circle is mutually nested with fixing circular waveguide " mode; form choke groove and little spacer ring crack structure between rotational circle waveguide and fixing circular waveguide; whole rotation joint structure compactness, be easy to processing; both guaranteed has good transmission performance between rotational circle waveguide and fixing circular waveguide, has realized again junction and can steadily rotate; Realize millimeter wave and crossed broadband, low-loss, the high-efficiency transfer performance of mould signal, there is short, compact conformation of design cycle, cost low, easy processing, the advantage such as easy for installation.
Accompanying drawing explanation
Fig. 1 is overall structure cross-sectional view of the present invention
Fig. 2 is the structure for amplifying schematic diagram at I place in Fig. 1
Wherein, Reference numeral is: 1 rotational circle waveguide, 2 fixed connecting plates, 3 attachment screws, 4 deep-groove ball rolling bearings, 5 tuning nuts, 6 locking nuts, 7 lock-screws, 8 fixing circular waveguides, 9 choke grooves, 10 little gap circumferential welds.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but implementation method of the present invention and claimed scope are not limited to this.
As shown in Figure 1, a kind of millimeter wave broadband TE
01mould rotary joint, is fixedly connected with part and rotating part for connecting rotational circle waveguide 1 and fixing circular waveguide 8, comprising, described rotary joint entirety is rotational symmetry structure; Be fixedly connected with part and comprise fixed connecting plate 2, attachment screw 3, attachment screw 3 is connected and fixed rotational circle waveguide 1 and fixing circular waveguide 8 through fixed connecting plate 2, between fixed connecting plate 2 and rotational circle waveguide 1, fixing circular waveguide 8, leaves cavity; Rotating part is arranged in cavity, and main body is the deep-groove ball rolling bearing 4 being sleeved on rotational circle waveguide 1 outer wall, and the outer wall of deep-groove ball rolling bearing 4 is close to the inwall of fixing circular waveguide 8.
Further, rotating part comprises two deep-groove ball rolling bearings 4 that are set up in parallel, between two deep-groove ball rolling bearings 4, be also set side by side with tuning nut 5, tuning nut 5 is close to the side inwards of two deep-groove ball rolling bearings 4, tuning nut 5 guarantees the level and smooth rotation of deep-groove ball rolling bearing 4, and the cavity clearance size between tunable rotational circle waveguide 1 and fixing circular waveguide 8.
Described two deep-groove ball rolling bearings 4 two sides towards outside, a side is affixed on fixed connecting plate 2, lock by the locking nut 6 and the lock-screw 7 that are installed on rotational circle waveguide 1 outer wall another side.
Further, described rotational circle waveguide and fixing circular waveguide are millimeter wave TE
01mould circular waveguide, as shown in Figure 2, both leave choke groove between inwall, leave the little gap circumferential weld of connection between inwall and end, axle center.
Described rotational circle waveguide 1 with fixing circular waveguide 8 all with adpting flange, being connected and fixing for the transmission waveguide of whole rotary joint and front and back.
In the present embodiment, rotational circle waveguide 1 is 3 λ with the internal diameter of fixing circular waveguide 8, and rotational circle waveguide 1 length is 4.8 λ, and fixing circular waveguide 8 length are 2.7 λ; Choke groove 9 length are 0.25 λ, and little gap circumferential weld 10 width are 0.25 λ.
Adopt millimeter wave vector network analyzer to detect its transmission characteristic, specific as follows:
A) bandwidth of operation is greater than 30% relatively;
B) in working band, voltage standing wave ratio is less than 1.1, and when rotary joint rotates, voltage standing wave ratio rises and falls and is less than 0.05;
C) in working band, insertion loss is less than 0.2dB, and when rotary joint rotates, voltage standing wave ratio rises and falls and is less than 0.05dB;
Finally it should be noted that, the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although the present invention is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (5)
1. a millimeter wave broadband TE
01mould rotary joint, is characterized in that: for connecting rotational circle waveguide (1) and fixing circular waveguide (8), comprising, be fixedly connected with part and rotating part, described rotary joint entirety is rotational symmetry structure; Be fixedly connected with part and comprise fixed connecting plate (2), attachment screw (3), attachment screw (3) will be fixed circular waveguide (8) through fixed connecting plate (2) and be connected and fixed, and between fixed connecting plate (2) and rotational circle waveguide (1), fixing circular waveguide (8), leave cavity; Rotating part is arranged in cavity, and main body is for being sleeved on the rolling bearing (4) on rotational circle waveguide (1) outer wall, and the outer wall of rolling bearing (4) is close to the inwall of fixing circular waveguide (8); Rotating part comprises two rolling bearings that are set up in parallel (4), be positioned at and between two rolling bearings (4), be also set side by side with tuning nut (5), tuning nut (5) is close to the side inwards of two rolling bearings (4), and tuning nut (5) is for the level and smooth size of rotating the cavity clearance between tuning rotational circle waveguide (1) and fixing circular waveguide (8) of tuning rolling bearing (4); Two sides towards outside of described two rolling bearings (4), a side is affixed on fixed connecting plate (2), and another side is by being installed on locking nut (6) and lock-screw (7) locking on rotational circle waveguide (1) outer wall; Described rotational circle waveguide (1) is millimeter wave TE
01mould circular waveguide.
2. millimeter wave broadband TE according to claim 1
01mould rotary joint, is characterized in that: described rolling bearing (4) is deep-groove ball rolling bearing.
3. millimeter wave broadband TE according to claim 2
01mould rotary joint, is characterized in that: described fixing circular waveguide (8) is millimeter wave TE
01mould circular waveguide.
4. millimeter wave broadband TE according to claim 3
01mould rotary joint, is characterized in that: between the inwall of described rotational circle waveguide (1) and the inwall of fixing circular waveguide, leave choke groove (9).
5. according to the millimeter wave broadband TE described in claim 3 or 4
01mould rotary joint, is characterized in that: between the inwall and the inwall of fixing circular waveguide of described rotational circle waveguide (1), leave the little gap circumferential weld (10) of connection between rotational circle waveguide (1) and fixing circular waveguide Zhou center end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110198316.2A CN102394323B (en) | 2011-07-15 | 2011-07-15 | Millimeter-wave wideband TE01-mode rotating joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110198316.2A CN102394323B (en) | 2011-07-15 | 2011-07-15 | Millimeter-wave wideband TE01-mode rotating joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102394323A CN102394323A (en) | 2012-03-28 |
| CN102394323B true CN102394323B (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110198316.2A Expired - Fee Related CN102394323B (en) | 2011-07-15 | 2011-07-15 | Millimeter-wave wideband TE01-mode rotating joint |
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| CN (1) | CN102394323B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117455B (en) * | 2013-02-17 | 2015-03-04 | 贵州振华天通设备有限公司 | Rotating joint transition body |
| CN105357789B (en) * | 2015-11-30 | 2018-05-15 | 南京三乐微波技术发展有限公司 | Energy feedback device based on large-scale rotating device |
| CN107069151B (en) * | 2017-05-23 | 2022-02-25 | 星展测控科技股份有限公司 | Waveguide rotary joint with adjustable gap |
| CN107706486B (en) * | 2017-05-23 | 2022-12-02 | 星展测控科技股份有限公司 | Waveguide rotary joint capable of quickly adjusting clearance |
| CN107039715B (en) * | 2017-05-23 | 2022-05-17 | 星展测控科技股份有限公司 | Contact type gapless waveguide rotary joint |
| CN110364797A (en) * | 2019-02-28 | 2019-10-22 | 深圳铭杰医疗科技有限公司 | A kind of waveguide, waveguide assemblies and accelerator system |
| CN111934066B (en) * | 2020-06-30 | 2022-03-04 | 西安空间无线电技术研究所 | Broadband non-contact circular waveguide rotary joint and design method |
| CN111934065B (en) * | 2020-06-30 | 2022-03-04 | 西安空间无线电技术研究所 | Broadband abrasion-resistant circular waveguide rotary joint and design method |
| CN112201914B (en) * | 2020-09-29 | 2021-11-16 | 中国船舶重工集团公司第七二四研究所 | Rotary sliding contact mechanism |
| CN114069170B (en) * | 2021-09-30 | 2022-09-09 | 北京空间飞行器总体设计部 | Dual-band rotary joint suitable for Mars is surveyed |
| CN114421103B (en) * | 2021-11-01 | 2023-03-28 | 成都利尼科医学技术发展有限公司 | Non-contact airtight high-power coaxial waveguide rotary joint |
| CN115084804B (en) * | 2022-06-28 | 2023-04-28 | 电子科技大学 | GW-class circular TM 01 Mould vacuum rotary joint |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2370591Y (en) * | 1999-04-19 | 2000-03-22 | 中国科学院紫金山天文台 | Structure simplied rotary joint |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3908071B2 (en) * | 2002-04-02 | 2007-04-25 | 三菱電機株式会社 | Rotary joint |
| JP2005033463A (en) * | 2003-07-11 | 2005-02-03 | Mitsubishi Heavy Ind Ltd | Waveguide rotary joint |
| JP4210854B2 (en) * | 2004-06-22 | 2009-01-21 | 株式会社Ｉｈｉ | Rotary joint for high frequency transmission |
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2011
- 2011-07-15 CN CN201110198316.2A patent/CN102394323B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2370591Y (en) * | 1999-04-19 | 2000-03-22 | 中国科学院紫金山天文台 | Structure simplied rotary joint |
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| CN102394323A (en) | 2012-03-28 |
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Granted publication date: 20140423 Termination date: 20160715 |