Compact type ultra wide band polarizer

Abstract

The invention relates to the technical field of communication and in particular discloses a compact type ultra wide band polarizer. The compact type ultra wide band polarizer comprises a circular waveguide port, a transition chamfer square waveguide and an ultra wide band phase shifter, wherein the circular waveguide port is connected with the ultra wide band phase shifter by virtue of the transition chamfer square waveguide, the circular waveguide port is arranged at the two ends, one end is an input circular waveguide port, and the other end is an output circular waveguide port; the transition chamfer square waveguide is a square waveguide with four ridges chamfers; and the ultra wide band phase shifter is a square waveguide the side wall of which is provided with a horizontal ridge and a vertical ridge, and the horizontal ridge is symmetrically distributed on the two opposite side walls of the square waveguide along the axial direction of the square waveguide. In the invention, a simple and compact structure is adopted, linear circular polarization on two direction field vectors are smartly realized, technical indexes of amplitude and phase for a circular polarizer to be orthogonal with two field components are met, and the compact type ultra wide band polarizer disclosed by the invention has the advantages of compact structure, small volume, light weight, low cost, easiness in processing, easiness in tuning, high efficiency, high power capacity and the like.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a compact ultra-wideband circular polarizer. Background technique [0002] Generally, the transmitting and receiving antennas of the self-tracking system adopt circular polarization radiation mode, and the circular polarizer is the main component that determines the circular polarization performance of the antenna. Waveguide circular polarization is a new type of circular polarizer. It has good circular polarization performance and compact structure, and it is convenient to directly connect with the circular waveguide corrugated horn feed without additional transition section, so that the antenna can be easily realized circularly polarized radiation. It has very broad application prospects in communication, radar, guidance, telemetry, remote sensing, astronomy and television broadcasting. In order to achieve stable tracking of the target, the antenna is required to have a...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of general circular polarizers such as complex structure, high processing precision requirements and difficult adjustment, the present invention provides a compact broadband waveguide circular polarizer, which can realize good circular polarization technical indicators, and can directly Connected to the corrugated horn feed of the circular waveguide input port

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