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Multichannel microwave rotary joint

A rotary joint, multi-channel technology, used in waveguide-type devices, electrical components, circuits, etc., can solve the problems of difficult to guarantee performance, complex structure and high processing requirements, and achieve small structure size, compact structure, stability and electrical power. The effect of high performance smoothness

Active Publication Date: 2012-06-27
NANJING XINXUAN ELECTRONICS SYST ENG
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  • Description
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AI Technical Summary

Problems solved by technology

[0002] At present, microwave rotary joints are widely used in rotary antennas in radar and communication, commonly used in L, C, S, X, Ku bands, etc., and the structure is mostly single-channel, even if there are rotary joints that use dual-channel or multi-channel. The structure is complex, the structure size is large, the processing requirements are high, the difficulty is great, and the performance is difficult to guarantee

Method used

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Embodiment Construction

[0023] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0024] see figure 1 , figure 2 , image 3 and Figure 4 , the present invention includes a first shell and a first-way L-band rotary joint installed on the first shell; wherein, the first shell includes a stationary shell 1 and a movable shell 2, and the movable shell 2 and the stationary shell A first bearing 3 and a second bearing 4 are installed between the bodies 1 , and the movable housing 2 can rotate relative to the stationary housing 1 .

[0025] A first axial through hole 14 is formed on the rotating shaft 13 of the movable housing 2 with a lathe, and a second housing 15 penetrates and is fixed in the first axial through hole 14 .

[0026] In this embodiment, the second housing 15 is equipped with a second L-band rotary joint and a t...

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Abstract

The invention discloses a multichannel microwave rotary joint, which comprises a first casing and a first channel L wave band rotary joint which is installed on the first casing and of a stack structure. The first casing comprises a static casing and a movable casing capable of rotating relative to the static casing, wherein a first axial through hole is arranged on a rotary shaft of the movable casing, the second casing penetrates through the first axial through hole to be fixed in the first axial through hole, and a second L wave band rotary joint of a coaxial embedded structure and at least three channels of rotary joints are installed on the second casing. The rotary joint can be applied to a radar system with high maneuvering characteristics, can meet requirements of high environmental adaptability, and is small in structural size and high in reliability. By means of combination of the coaxial embedded design and the stack design, the rotary joint is enabled to be compact in structure, small in size and high in rotation stability and electricity stationarity.

Description

technical field [0001] The invention relates to a microwave device, in particular to a multi-channel microwave rotary joint. Background technique [0002] At present, microwave rotary joints are widely used in rotary antennas in radar and communication, and are commonly used in L, C, S, X, Ku bands, etc., and the structure is mostly single-channel, even if there are rotary joints that use dual-channel or multi-channel. The structural form is complex, the structural size is large, the processing requirements are high, the difficulty is great, and the performance is difficult to guarantee. [0003] There are usually two ways to design multi-way rotary joints: coaxial nested and stacked. The coaxial nesting adopts the method of expanding outward layer by layer with the central coaxial circuit as the reference. Each channel is a coaxial cable structure, and its inner conductor is also the outer conductor of its inner channel, and its outer conductor is also its outer channel. ...

Claims

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Application Information

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IPC IPC(8): H01P1/06
Inventor 时庆马云斌谭庆俊
Owner NANJING XINXUAN ELECTRONICS SYST ENG
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