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A novel multi-band frequency selection surface element

A frequency selective surface, multi-band technology, applied in the field of antenna and microwave, to achieve reasonable and feasible basic technology, good frequency selection characteristics, and achieve self-supporting effect

Active Publication Date: 2019-01-04
XIAN INSTITUE OF SPACE RADIO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The power system has special requirements for the frequency selective response of a large frequency span. The traditional planar (2D) structure frequency selective surface is difficult to achieve the frequency selective performance of the 4-fold frequency span. Therefore, it is required that the device needs to increase one-dimensional design freedom, that is 3D structure

Method used

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  • A novel multi-band frequency selection surface element
  • A novel multi-band frequency selection surface element
  • A novel multi-band frequency selection surface element

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Embodiment Construction

[0026] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0027] figure 1 It is a structural schematic diagram of a novel multi-band frequency selective surface unit provided by an embodiment of the present inventio...

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Abstract

The invention discloses a multi-frequency all-metal frequency selection surface unit, which is of an all-metal 3D structure, and the all-metal array structure formed by the periodic arrangement thereof has the band pass characteristic of low Q value in the Ku frequency band, and exhibits the band stop characteristic in the X frequency band and the Ka frequency band. The unit consists mainly of waveguide grid and vibrator structures, The waveguide grid structure constitutes the whole envelope structure of the element and provides the low frequency (X-band) cutoff characteristics of the element.The embedded dipole structure makes the element possess the characteristics of ridge waveguide transmission line and folded resonance, and realizes the band-pass characteristics of Ku band and the band-stop characteristics of Ka band. The waveguide grid and the vibrator structure are directly connected with each other through the central supporting vibrator, which realizes the integration of all-metallization and self-support. The special 3D all-metal structure of the waveguide grid and the vibrator structure realizes the double stopband performance with large frequency span and the frequencyselection performance with wide band-pass characteristics.

Description

technical field [0001] The invention belongs to the technical field of antennas and microwaves, and in particular relates to a novel multi-band frequency selection surface unit. Background technique [0002] With the continuous development of antenna technology and satellite applications, as well as the widening and deepening of related space science and applications, there are more and more requirements for the functions that can be completed by wireless systems, which requires the antennas in the system to have multiple functions. capability or can achieve corresponding performance indicators according to different applications, increasing the antenna function or performance only by increasing the number of antennas can no longer meet the requirements of more and more complex space missions, and the system has more and more urgent needs for multi-band antenna performance, and the development of many Band-frequency selective surface technology is a way to realize multi-freq...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/00
CPCH01Q15/0013
Inventor 张明涛徐进双龙龙
Owner XIAN INSTITUE OF SPACE RADIO TECH
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