Double-frequency-band frequency selective surface reflector plate applied to reflector antenna

A frequency selective surface and reflector technology, applied in the field of electronics, can solve problems such as poor angle stability, resonant frequency shift, narrow passband bandwidth, etc., to overcome the instability of polarization characteristics and meet dual-frequency communication Requirements, good effect of dual-frequency communication requirements
CN103151618AInactive Publication Date: 2013-06-12XIDIAN UNIV
6 Cites 12 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIDIAN UNIV
Publication Date
2013-06-12
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a double-frequency-band frequency selective surface reflector plate applied to a reflector antenna, which is mainly used for solving the problem that the angle stability can not be achieved due to the narrower bandwidth of the traditional reflector antenna. The reflector plate is formed by periodically continuing a reflector plate unit in directions of an X-coordinate and a Y-coordinate on which the reflector plate unit is located, wherein the reflector plate unit consists of a medium unit, an upper frequency selection surface unit and a lower frequency selection surface unit; the upper frequency selection surface unit consists of ring patches which are arranged according to a matrix, the lower frequency selection surface unit consists of a square-shaped patch and a vehicle-wheel-shaped patch, a hole is formed in the center of the square-shaped patch, and the vehicle-wheel-shaped patch is in central superposition with the square-shaped patch. According to the double-frequency-band frequency selective surface reflector plate disclosed by the invention, the bandwidth of a resonance frequency band is extended, the multi-angle stability is achieved, and the strength of signals in a communication frequency band is increased.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of electronics, and further relates to a dual-band frequency-selective surface reflector for reflector antennas in the technical field of electromagnetic materials. The invention can be used in satellite communication, mobile communication, multi-feed and multi-frequency multiplexing reflection surface antenna and the like. Background technique

[0002] The frequency selective surface can not only effectively control the reflection and transmission of the incident electromagnetic wave, but also perform frequency selection and polarization selection on the electromagnetic wave. Reflective characteristics, with spatial filtering function. In the microwave field, the important role of the frequency selective surface in the multi-band multiplexing system makes it applicable to the multiplexer of the frequency band of the communication satellite, and the reflector antenna of the multi-feed multi-frequency multip...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More