Full-bandwidth rectangular waveguide coaxial conversion device

Abstract

The invention discloses a full-bandwidth rectangular waveguide coaxial conversion device. The device comprises a rectangular waveguide body. An opening is arranged in the front end of the rectangularwaveguide body, and the back is a cut-off wall. The device is provided with a coaxial connector. The metal inner shaft of the coaxial connector is connected with a metal probe in the rectangular waveguide body from the outer side of the bottom of the rectangular waveguide body. The outer side of the probe is coated with a non-metal dielectric layer. The non-metal dielectric layer is made of polytetrafluoroethylene. A metal body perpendicularly connected with the bottom wall of an inner cavity is arranged in the cavity of the rectangular waveguide body. The metal body is located on the front side of the probe. According to the invention, the reflection coefficient of the full waveguide bandwidth is greatly reduced; the insertion loss is effectively reduced; the conversion efficiency is improved; the effect is stable; and due to simple structure and easy processing and molding, the device can be widely used in a rectangular waveguide wave tube technology in the field of microwave communication in a standardized way and in a full-bandwidth spectral range.

Description

technical field [0001] The invention relates to a rectangular waveguide coaxial conversion device in the field of microwave communication. Background technique [0002] Waveguides are widely used in the field of microwave communications. According to their cross-sectional shapes, they can be divided into rectangular waveguides, circular waveguides, double-ridge waveguides, and elliptical waveguides. In view of the characteristics of good electromagnetic shielding and low loss, waveguides are often used in long-distance microwave transmission equipment. The rectangular waveguide is widely used in satellite communication because of its simple structure. In the equipment in the field of interference and anti-interference communication, rectangular waveguides are often used as input / output ports, while feeder cables, vector analyzers, spectrum analyzers, power amplifiers, etc. in actual engineering also use coaxial cables as input / output ports. output port. Rectangular wavegu...

AI Technical Summary

Problems solved by technology

However, due to the complex design, difficult fabrication, and narrow frequency bandwidth expansion range, it is only suitable for standard waveguides (the aspect ratio of the waveguide opening is 2:1), and cannot be widely used.

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