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Plane-form frequency reuse antenna sub-reflection surface

A sub-reflector and form technology, applied in the field of measurement and control, remote sensing reception, and communication, can solve the problems of complex processing process, difficult design and analysis, low product yield, etc., to achieve mature and stable technology, convenient adjustment and control of working bandwidth, Design Accurate Effects

Active Publication Date: 2016-08-31
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the conformal frequency selection surface of the curved surface is difficult to design and analyze, the processing process is complicated, and the product yield is extremely low.

Method used

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  • Plane-form frequency reuse antenna sub-reflection surface
  • Plane-form frequency reuse antenna sub-reflection surface
  • Plane-form frequency reuse antenna sub-reflection surface

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Embodiment Construction

[0023] Combine below Figure 1 to Figure 5 The present invention is further described. However, the scope of protection of the present invention is not limited to the implementation examples.

[0024] Such as figure 1 As shown, a planar antenna sub-reflector includes a planar frequency selective layer 1 and a planar phase shifting layer 2, the frequency selective layer and the phase shifting layer are arranged in parallel and between the two Conductive medium; said non-conductive medium refers to materials with non-conductive properties, including air, foam and paper honeycomb.

[0025] Such as figure 2 As shown, an antenna system using the secondary reflector further includes a feedforward source 3 , a feedback source 4 and a main reflector 5 of the antenna. The operating frequency bands of the two feeds are different. The phase center of the feedforward source 3 coincides with the focus of the main reflector. After the phase center of the rear feed source 4 passes thr...

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Abstract

The invention relates to a plane-form frequency reuse antenna sub-reflection surface. The sub-reflection surface comprises two function layers: a frequency selection layer and a phase shift layer. The frequency selection layer achieves the total transmission of a feedforward feed source, and achieves the total reflection of a feedbackward feed source. After the feedbackward feed source irradiates the phase shift layer, the reflection phase of an electromagnetic wave is changed, thereby enabling the phase center of the reflected wave to coincide with the focus of the main reflection surface of an antenna. The two function layers of the sub-reflection surface act jointly, and achieve the frequency reuse of the main reflection surface. The sub-reflection surface avoids a curved-surface form frequency selection layer, and can improve the rate of finished products.

Description

technical field [0001] The invention belongs to the fields of communication, measurement and control, remote sensing reception and the like, and relates to a frequency multiplexing antenna sub-reflection surface in planar form. Background technique [0002] Reflector antennas are widely used in satellite communications, deep space exploration, remote control and remote sensing and other fields. Among them, the performance of the double-reflector antenna is better than that of the single-reflector antenna. The dual-reflector antenna has two panels, the main reflector and the sub-reflector. The role of the secondary reflector is to regularly reflect the radiant energy of the primary feed to the main reflector to form a high-gain beam. The dual-reflector antennas mainly include Cassegrain type and Gregorian type. The secondary reflector of the Cassegrain antenna is a hyperboloid, and the secondary reflector of the Gregorian antenna is an ellipse. [0003] The frequency sele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/00H01Q15/14H01Q3/30H01Q19/19
CPCH01Q3/30H01Q15/0013H01Q15/14H01Q19/19
Inventor 何应然武彦飞张文静杜彪吴建明
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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