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Non-contact broadband microwave rotary joint

A rotary joint, non-contact technology, used in connection devices, waveguide devices, electrical components, etc., can solve the problem of inability to achieve broadband characteristics, and achieve the effects of high reliability, reduced rotational variation, and long rotational life.

Inactive Publication Date: 2022-01-18
THE 724TH RES INST OF CHINA SHIPBUILDING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional non-contact solution is realized through a coaxial choke slot, which cannot achieve broadband characteristics

Method used

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  • Non-contact broadband microwave rotary joint

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Embodiment Construction

[0020] In conjunction with the accompanying drawings, the design process of the present invention is illustrated in specific embodiments.

[0021] The design process of the non-contact broadband microwave rotary joint proposed by the present invention is as follows:

[0022] (1) if figure 1 As shown, in the rotor casing R3 and the stator casing F3 of the above-mentioned revolving joint, a rotor microstrip power dividing / combining network R2 and a stator microstrip power dividing / combining network F2 are respectively designed, and N=2 in this case. Weld the rotor feed probe R7 at the distribution port of the rotor microstrip power division / synthesis network R2, and weld the stator feed probe F7 at the distribution port of the stator microstrip power division / synthesis network F2.

[0023] (2) Make ring-shaped grooves on the medium support (polytetrafluoroethylene) R4 and F4 in the rotor and stator respectively, and install them in the rotor shell R3 and the stator shell F3, an...

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Abstract

The invention provides a non-contact broadband microwave rotary joint. The non-contact broadband microwave rotary joint is composed of a stator, a rotor and a bearing, wherein the stator comprises a stator micro-strip power division / synthesis network F2, a stator feed probe F7 and a stator coupling ring F8; the rotor comprises a rotor micro-strip power division / synthesis network R2, a rotor feed probe R7 and a rotor coupling ring R8; and the rotor and the stator are axially and radially mounted through a bearing Z1, the stator is arranged on the outer side of the bearing, and the rotor is arranged on the inner side of the bearing. A radio frequency input signal enters the stator micro-strip power division / synthesis network F2 and is divided into N paths of signals with equal amplitude and same phase, the N paths of signals are transmitted to the stator coupling ring F8 through the stator feed probe F7, the stator coupling ring F8 transmits the N paths of signals to the rotor coupling ring R8 in a 0dB coupling mode, and finally the N paths of signals enter the rotor micro-strip power division / synthesis network R2 through the rotor feed probe R7 and are synthesized into one path to be output.

Description

technical field [0001] The invention belongs to the field of microwave rotary joints. Background technique [0002] Microwave rotary joint is a microwave transmission device and an important component of microwave electronic equipment. Mainly used in radar detection systems, communications, navigation, electronic countermeasures and other electronic equipment. [0003] In order to realize broadband operation, multiplex transmission, working reliability and lifespan of microwave rotary joints, commonly used design schemes are divided into two types according to whether the inner and outer conductors of the coaxial line are in contact: contact rotary joints and non-contact rotary joints. [0004] The advantage of the contact rotary joint is that it has a large bandwidth, even up to DC ~ 18GHz. The disadvantage is that the contact parts of the inner and outer conductors have extremely high requirements on processing and assembly accuracy and the wear resistance of the material...

Claims

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Application Information

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IPC IPC(8): H01P1/06H01P5/12
CPCH01P1/062H01P5/12
Inventor 汤袁亮靳连根
Owner THE 724TH RES INST OF CHINA SHIPBUILDING IND