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Broadband non-contact coaxial rotary joint and radar antenna

A non-contact, rotary joint technology, applied in the field of antenna communication, can solve the problems of small signal transmission frequency range, unstable signal transmission, etc.

Active Publication Date: 2021-05-14
AVIC FORSTAR S&T CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on the above defects, the present invention provides a wide-band non-contact coaxial rotary joint and radar antenna, which effectively solves the problems of the traditional non-contact rotary joint signal transmission frequency range is small and the signal transmission is unstable

Method used

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  • Broadband non-contact coaxial rotary joint and radar antenna
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  • Broadband non-contact coaxial rotary joint and radar antenna

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Embodiment Construction

[0028] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0029] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is usually placed when the product of the invention is used, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying References to devices or e...

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Abstract

The invention belongs to the technical field of radar antennae, and provides a broadband non-contact coaxial rotary joint and a radar antennae, the rotary joint comprises a stator shell, a rotor shell, a stator inner conductor, a rotor inner conductor and a transition inner conductor, the stator inner conductor and the transition inner conductor are coaxially installed in the stator shell, the rotor inner conductor is coaxially arranged in the rotor shell, the rotor shell is rotatably connected with the stator shell, and two ends of the transition inner conductor respectively form a non-contact coupling circuit with the stator inner conductor and the rotor inner conductor. Based on the defects of non-contact type and contact type radio frequency rotary joints in the prior art, the problem that a traditional non-contact type rotary joint is small in signal transmission frequency band range is effectively solved, and the rotary joint can be used for adapting to the rotation direction of a broadband antenna in real time under the condition that signal transmission is uninterrupted, the electrical performance consistency of signal transmission in the rotation process of the antenna is improved, and the antenna can adapt to each frequency band of X-Ka.

Description

technical field [0001] The invention belongs to the technical field of antenna communication, and in particular relates to a broadband non-contact coaxial rotary joint and a radar antenna. Background technique [0002] The rotary joint is an indispensable key component in the mechanical scanning radar system. Its function is to realize the normal transmission of microwave signals during the rotation of the radar antenna, and to adjust the radiation direction of the antenna in real time. With the development of radar technology, the requirements for rotary joints are getting higher and higher, not only to meet the requirements of small loss, low standing wave, and high power, but also the amplitude, phase and standing wave of the microwave during the rotation of the rotary joint. The fluctuations are small enough to achieve better signal transmission stability. [0003] With the development of radar communication technology, domestic radio frequency rotary joint technology c...

Claims

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Application Information

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IPC IPC(8): H01P1/06H01Q1/50
CPCH01P1/062H01Q1/50
Inventor 虢宏昌雷杰张刚柱党作红
Owner AVIC FORSTAR S&T CO LTD
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