CN102394323A - Millimeter-wave wideband TE01-mode rotating joint - Google Patents
Millimeter-wave wideband TE01-mode rotating joint Download PDFInfo
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- CN102394323A CN102394323A CN2011101983162A CN201110198316A CN102394323A CN 102394323 A CN102394323 A CN 102394323A CN 2011101983162 A CN2011101983162 A CN 2011101983162A CN 201110198316 A CN201110198316 A CN 201110198316A CN 102394323 A CN102394323 A CN 102394323A
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- waveguide
- circular waveguide
- millimeter wave
- rotary joint
- rotational circle
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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
01The mould rotary joint.
Background technology
In the application of modern radars system, communication system, for the locus of ferret out, tracking target, measurement target, the antenna of system must rotate at any time.Rotary joint is just in order to satisfy the antenna needs of ferret out, tracking target and measurement target constantly at work, the important devices of microwave signal transformation task when accomplishing the antenna rotation.For example, open day is 2010.07.21, and publication number is CN 201532999U, and the Chinese patent document discloses through type RF coaxial rotary joint, and it comprises the rotating part and the standing part of coaxial setting; Wherein, form rotatable parts by plug, insulating bushing, adapter sleeve, swivel joint, bearing and back-up ring; Constitute another fixed part by inner core, sleeve, insulating bushing etc.This rotary joint reliable in structure, rotation are flexibly, electrical contact performance is good; Bandwidth, performance is good and stable work in work, is fit to frequency ranges such as MF, HF, VHF, UHF, can be widely used in communication antenna and transmitter and have in the counterrotating system.
But along with the development of technology, radar, communication system operating frequency are extended to millimeter wave frequency band gradually.But constantly increase in the loss of millimeter wave frequency band master mould waveguide, be unfavorable for the high efficiency of transmission of signal, for example TE
01The advantage little etc. the higher mode loss just manifested to come out, and the loss during therefore the increasing millimeter-wave systems mode that begins to adopt overmoded waveguide to propagate higher mode reduces to transmit improves effectiveness.From disclosed documents and materials, domestic at present not about TE
01The report of mould rotary joint does not have detailed document introduction abroad yet.Therefore, a kind of millimeter wave broadband TE of development based on overmoded waveguide
01The mould 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
01The mould rotary joint is crossed in the broadband of mould waveguide, can be in the rotary joint smooth rotation, and realization good broadband, low-loss, high efficiency millimeter wave are crossed the transmission of mould signal.
The object of the invention is specifically realized through following technical scheme:
A kind of millimeter wave broadband TE
01The mould rotary joint is characterized in that: be used to connect rotational circle waveguide and fixing circular waveguide, comprise being fixedly connected part and rotating part, said rotary joint integral body is rotational symmetry structure; Be fixedly connected part comprise fixed connecting plate, attachment screw, attachment screw pass fixed connecting plate fixedly circular waveguide connect fixingly, fixed connecting plate and rotational circle waveguide, fixedly leave cavity between the circular waveguide; Rotating part is arranged in the cavity, and main body is the rolling bearing that is sleeved on the rotational circle waveguide outer wall, and the outer wall of rolling bearing is close to the fixedly inwall of circular waveguide.
Further; Rotating part comprises two rolling bearings that are set up in parallel; Between two rolling bearings, also be set side by side with tuning nut; Tuning nut is close to the side inwards of two rolling bearings, and tuning nut is used to guarantee the level and smooth rotation of bearing, and tunable rotational circle waveguide and the fixing cavity clearance between circular waveguide size.
Two sides of said two rolling bearings towards the outside, a side is affixed on fixed connecting plate, and another side is through being installed on locking nut and the lock-screw locking on the rotational circle waveguide outer wall.
Said rolling bearing is zanjon ball rolling bearing.
Further, said rotational circle waveguide and fixedly circular waveguide be millimeter wave TE
01The mould circular waveguide, both leave choke groove between the inwall, leave the little gap circumferential weld of connection between inwall and the end, axle center.
Beneficial effect of the present invention is following:
The present invention takes " TE
01The waveguide of mould rotational circle with fixedly circular waveguide is mutually nested " mode; form rotational circle waveguide and fixedly choke groove and little spacer ring crack structure between the circular waveguide; whole rotary joint compact conformation, be easy to processing; both guaranteed in the rotational circle waveguide and good transmission performance is fixedly arranged between the circular waveguide, realized that again the junction can steadily rotate; Realized that millimeter wave crosses the broadband of mould signal, low-loss, high-efficiency transfer performance, have design cycle weak point, compact conformation, cost low, be prone to processing, advantage such as easy for installation.
Description of drawings
Fig. 1 is an overall structure cross-sectional view of the present invention
Fig. 2 is the structure for amplifying sketch map at I place among Fig. 1
Wherein, Reference numeral is: 1 rotational circle waveguide, 2 fixed connecting plates, 3 attachment screws, 4 zanjon 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 made further detailed description, but implementation method of the present invention is not limited thereto with the scope that requires protection.
As shown in Figure 1, a kind of millimeter wave broadband TE
01The mould rotary joint is used to connect rotational circle waveguide 1 and fixing circular waveguide 8, comprises being fixedly connected part and rotating part that said rotary joint integral body is rotational symmetry structure; Be fixedly connected part and comprise that fixed connecting plate 2, attachment screw 3, attachment screw 3 pass fixed connecting plate 2 rotational circle waveguide 1 and fixing circular waveguide 8 are connected and fixed, fixed connecting plate 2 and rotational circle waveguide 1, fixedly leave cavity between the circular waveguide 8; Rotating part is arranged in the cavity, and main body is the zanjon ball rolling bearing 4 that is sleeved on rotational circle waveguide 1 outer wall, and the outer wall of zanjon ball rolling bearing 4 is close to the fixedly inwall of circular waveguide 8.
Further; Rotating part comprises two zanjon ball rolling bearings 4 that are set up in parallel; Between two zanjon ball rolling bearings 4, also be set side by side with tuning nut 5; Tuning nut 5 is close to the side inwards of two zanjon ball rolling bearings 4, and tuning nut 5 guarantees the level and smooth rotation of zanjon ball rolling bearings 4, and tunable rotational circle waveguide 1 is with fixedly the cavity clearance between the circular waveguide 8 is big or small.
Said two zanjon ball rolling bearings 4 two sides towards the outside, a side is affixed on fixed connecting plate 2, another side is through being installed on the locking nut 6 and lock-screw 7 lockings on rotational circle waveguide 1 outer wall.
Further, said rotational circle waveguide and fixedly circular waveguide be millimeter wave TE
01The mould circular waveguide, as shown in Figure 2, both leave choke groove between the inwall, leave the little gap circumferential weld of connection between inwall and the end, axle center.
Said rotational circle waveguide 1 all has adpting flange with fixing circular waveguide 8, is used for being connected and fixing of transmission waveguide of whole rotary joint and front and back.
In the present embodiment, rotational circle waveguide 1 is 3 λ with the fixing internal diameter of circular waveguide 8, and rotational circle waveguide 1 length is 4.8 λ, and fixedly 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 the millimeter wave vector network analyzer that its transmission characteristic is detected, specific as follows:
A) relative bandwidth of operation is greater than 30%;
B) voltage standing wave ratio is less than 1.1 in the working band, and when rotary joint rotated, voltage standing wave ratio rose and fell less than 0.05;
C) insert loss in the working band less than 0.2dB, when rotary joint rotated, voltage standing wave ratio rose and fell less than 0.05dB;
Need to prove at last; The above is merely the preferred embodiments of the present invention; Be not limited to the present invention, although the present invention has been carried out detailed explanation, for a person skilled in the art with reference to previous embodiment; It still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. millimeter wave broadband TE
01The mould rotary joint is characterized in that: be used to connect rotational circle waveguide (1) and fixing circular waveguide (8), comprise being fixedly connected part and rotating part, said rotary joint integral body is rotational symmetry structure; Be fixedly connected part and comprise fixed connecting plate (2), attachment screw (3); Attachment screw (3) pass fixed connecting plate (2) fixedly circular waveguide (8) connect fixingly, fixed connecting plate (2) and rotational circle waveguide (1), fixedly leave cavity between the circular waveguide (8); Rotating part is arranged in the cavity, and main body is for to be 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 fixedly inwall of circular waveguide (8).
2. millimeter wave broadband TE according to claim 1
01The mould rotary joint; It is characterized in that: rotating part comprises two rolling bearings that are set up in parallel (4); Be positioned at and also be set side by side with tuning nut (5) between two rolling bearings (4); Tuning nut (5) is close to the side inwards of two rolling bearings (4), and tuning nut (5) is used for that tuning rolling bearing (4) is level and smooth to rotate and the tuning rotational circle waveguide (1) and the fixing size of the cavity clearance between the circular waveguide (8).
3. millimeter wave broadband TE according to claim 2
01The mould rotary joint; It is characterized in that: two sides of said two rolling bearings (4) towards the outside; A side is affixed on fixed connecting plate (2), and another side is through being installed on locking nut (6) and lock-screw (7) locking on rotational circle waveguide (1) outer wall.
4. according to any described millimeter wave broadband TE of claim 1-3
01The mould rotary joint is characterized in that: said rolling bearing (4) is zanjon ball rolling bearing.
5. according to any described millimeter wave broadband TE of claim 1-3
01The mould rotary joint is characterized in that: said rotational circle waveguide (1) is millimeter wave TE
01The mould circular waveguide.
6. millimeter wave broadband TE according to claim 5
01The mould rotary joint is characterized in that: said fixedly circular waveguide (8) is millimeter wave TE
01The mould circular waveguide.
7. millimeter wave broadband TE according to claim 6
01The mould rotary joint is characterized in that: the inwall of said rotational circle waveguide (1) and fixedly leave choke groove (9) between the inwall of circular waveguide.
8. according to claim 6 or 7 described millimeter wave broadband TE
01The mould rotary joint is characterized in that: the inwall of said rotational circle waveguide (1) and fixedly between the inwall of circular waveguide, rotational circle waveguide (1) and fixedly leave the little gap circumferential weld (10) of connection between the axle center end face of circular waveguide.
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 true CN102394323A (en) | 2012-03-28 |
| CN102394323B 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) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117455A (en) * | 2013-02-17 | 2013-05-22 | 贵州振华天通设备有限公司 | Rotating joint transition body |
| CN105357789A (en) * | 2015-11-30 | 2016-02-24 | 南京三乐微波技术发展有限公司 | Microwave feedback energy device based on large-scale rotation device |
| CN107039715A (en) * | 2017-05-23 | 2017-08-11 | 西安星展测控科技股份有限公司 | The gapless waveguide junction of contact |
| CN107069151A (en) * | 2017-05-23 | 2017-08-18 | 西安星展测控科技股份有限公司 | A kind of waveguide junction of adjustable clearance |
| CN107706486A (en) * | 2017-05-23 | 2018-02-16 | 星展测控科技股份有限公司 | Can quick regulation gap waveguide junction |
| 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 |
| CN111934065A (en) * | 2020-06-30 | 2020-11-13 | 西安空间无线电技术研究所 | Broadband abrasion-resistant circular waveguide rotary joint and design method |
| CN111934066A (en) * | 2020-06-30 | 2020-11-13 | 西安空间无线电技术研究所 | Broadband non-contact circular waveguide rotary joint and design method |
| CN112201914A (en) * | 2020-09-29 | 2021-01-08 | 中国船舶重工集团公司第七二四研究所 | Rotary sliding contact mechanism |
| CN114069170A (en) * | 2021-09-30 | 2022-02-18 | 北京空间飞行器总体设计部 | Dual-band rotary joint suitable for Mars is surveyed |
| CN114421103A (en) * | 2021-11-01 | 2022-04-29 | 成都利尼科医学技术发展有限公司 | Non-contact airtight high-power coaxial waveguide rotary joint |
| CN115084804A (en) * | 2022-06-28 | 2022-09-20 | 电子科技大学 | GW level circle TM 01 Mould vacuum rotary joint |
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| CN2370591Y (en) * | 1999-04-19 | 2000-03-22 | 中国科学院紫金山天文台 | Structure simplied rotary joint |
| US20040135657A1 (en) * | 2002-04-02 | 2004-07-15 | Yoji Aramaki | Rotary joint |
| JP2005033463A (en) * | 2003-07-11 | 2005-02-03 | Mitsubishi Heavy Ind Ltd | Waveguide rotary joint |
| JP2006013578A (en) * | 2004-06-22 | 2006-01-12 | Ishikawajima Harima Heavy Ind Co Ltd | Rotary joint for high frequency transmission |
-
2011
- 2011-07-15 CN CN201110198316.2A patent/CN102394323B/en not_active Expired - Fee Related
Patent Citations (4)
| 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 |
| US20040135657A1 (en) * | 2002-04-02 | 2004-07-15 | Yoji Aramaki | Rotary joint |
| JP2005033463A (en) * | 2003-07-11 | 2005-02-03 | Mitsubishi Heavy Ind Ltd | Waveguide rotary joint |
| JP2006013578A (en) * | 2004-06-22 | 2006-01-12 | Ishikawajima Harima Heavy Ind Co Ltd | Rotary joint for high frequency transmission |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117455A (en) * | 2013-02-17 | 2013-05-22 | 贵州振华天通设备有限公司 | Rotating joint transition body |
| CN103117455B (en) * | 2013-02-17 | 2015-03-04 | 贵州振华天通设备有限公司 | Rotating joint transition body |
| CN105357789A (en) * | 2015-11-30 | 2016-02-24 | 南京三乐微波技术发展有限公司 | Microwave feedback energy device based on large-scale rotation 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 |
| CN107039715A (en) * | 2017-05-23 | 2017-08-11 | 西安星展测控科技股份有限公司 | The gapless waveguide junction of contact |
| CN107706486A (en) * | 2017-05-23 | 2018-02-16 | 星展测控科技股份有限公司 | Can quick regulation gap waveguide junction |
| 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 |
| CN107069151A (en) * | 2017-05-23 | 2017-08-18 | 西安星展测控科技股份有限公司 | A kind of waveguide junction of adjustable 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 |
| CN111934065A (en) * | 2020-06-30 | 2020-11-13 | 西安空间无线电技术研究所 | Broadband abrasion-resistant circular waveguide rotary joint and design method |
| CN111934066A (en) * | 2020-06-30 | 2020-11-13 | 西安空间无线电技术研究所 | Broadband non-contact 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 |
| CN112201914A (en) * | 2020-09-29 | 2021-01-08 | 中国船舶重工集团公司第七二四研究所 | Rotary sliding contact mechanism |
| CN114069170A (en) * | 2021-09-30 | 2022-02-18 | 北京空间飞行器总体设计部 | Dual-band rotary joint suitable for Mars is surveyed |
| CN114421103A (en) * | 2021-11-01 | 2022-04-29 | 成都利尼科医学技术发展有限公司 | Non-contact airtight high-power coaxial waveguide rotary joint |
| 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 |
| CN115084804A (en) * | 2022-06-28 | 2022-09-20 | 电子科技大学 | GW level circle TM 01 Mould vacuum rotary joint |
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| Publication number | Publication date |
|---|---|
| CN102394323B (en) | 2014-04-23 |
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Granted publication date: 20140423 Termination date: 20160715 |