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Novel conical scanning antenna

A cone scanning and antenna technology, applied in the field of radar tracking, can solve the problems of unstable work, large mechanical vibration, complex structure, etc., and achieve the effect of low product cost, high cost and great difficulty.

Inactive Publication Date: 2013-08-21
四川兴华昌电子有限公司
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AI Technical Summary

Problems solved by technology

[0003] The conical scanning antenna adopts the working principle of the equivalent method. In structure, the feedforward feed source is used for defocused rotation to realize the conical scanning. Its advantage is that the tracking accuracy is in the middle, and its disadvantages are complex structure, large mechanical vibration and unstable operation.

Method used

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  • Novel conical scanning antenna

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Embodiment Construction

[0009] Such as figure 1 As shown, an embodiment of the present invention includes a paraboloid 1, a feed source 2, and a secondary surface 3, and is also provided with a motor 4 and a crankshaft 5. The motor 4 includes a motor shaft, and the first end 6 of the crankshaft 5 Connected with the motor shaft, the axis of the motor shaft coincides with the axis of the parabola, the concave surface apex of the secondary surface 3 is provided with a mounting seat, the second end 7 of the crankshaft 5 extends along the axis of the secondary surface 3 and Installed on the mounting base, the secondary surface 3 is driven by the motor 4 to realize the defocused rotary cone sweep.

[0010] The principle is: on the basis of the classic card antenna, the communication in motion is realized through the defocus rotation of the sub-surface 3. The degree of defocus depends on the depth of the cone-sweeping intersection level. The secondary surface 3 rotates around the axis of the paraboloid 1 a...

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Abstract

A novel conical scanning antenna comprises a parabolic face, a feed source and a sub face, and is characterized in that a motor and a crank shaft are included, the motor comprises a motor shaft, a first end of the crank shaft is connected with the motor shaft, an axis of the motor shaft coincides with an axis of the parabolic face, an installation seat is arranged on the top point of a concave face of the sub face, second end of the crank shaft stretches along the axis of the sub face and is arranged on the installation seat, and the sub face achieves offset-focus rotary conical scanning driven by the motor. Based on a classic clamping type antenna, communication in motion through off-focus rotation of the sub face is achieved, and the novel conical scanning antenna is simple in structure, easy to machine and debug, and low in product cost.

Description

technical field [0001] The invention relates to radar tracking technology in satellite communication, in particular to the structure of a mechanical conical scanning antenna. Background technique [0002] In satellite communication, in order to maintain communication while in motion, it is necessary to track the satellite continuously. The conical scanning antenna is a common technical solution to realize the above functions. The conical scanning antenna realizes the tracking of the target angle error information by generating a scanning beam that rotates away from the mechanical axis of the antenna. It usually adopts a circular parabolic antenna, and the feed source deviates from the focus of the parabolic antenna or adopts an asymmetrical feeding method to form a The center line of the beam (that is, the direction of the strongest radiation of the beam) forms a certain angle with the mechanical axis of the antenna (that is, the axis of rotation of the beam). When the fee...

Claims

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Application Information

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IPC IPC(8): H01Q3/22G01S7/28G01S13/66
Inventor 邓广淑余腾兵朱文瑞江红王成举施江峰马云波廖学军陈雪屈德强张宏洁
Owner 四川兴华昌电子有限公司
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