E-plane to H-plane waveguide probe transition structure

Abstract

The invention relates to an E-plane to H-plane waveguide probe transition structure, and belongs to the field of millimeter wave band communication system design. The structure comprises an E-plane waveguide, a first transition waveguide, an H-plane waveguide, a second transition waveguide, a probe and a shifting bead. The first transition waveguide is horizontally arranged. The E-plane waveguide1 is horizontally arranged at the center of the side surface of one end of the first transition waveguide. The H-plane waveguide is vertically arranged at the center of the side surface of the other end of the first transition waveguide. The second transition waveguide is in butt joint with the output end of the H-plane waveguide. The probe is arranged on the outer side wall of the second transition waveguide, and the probe axially extends into the side wall of the second transition waveguide. The shifting bead sleeves the outer wall of the end, extending out of the second transition waveguide, of the probe. Mutual conversion between an E plane and an H plane is realized, and transition design of the turning waveguide and the waveguide to the coaxial probe is completed at the same time.

Description

technical field [0001] The invention belongs to the design field of millimeter wave frequency band communication systems, and relates to a transitional structure of an E-plane to H-plane waveguide probe. Background technique [0002] With the wide application of wireless communication systems and radar systems in the millimeter wave frequency band, the waveguide structure is more and more favored by designers because of its high sealing performance and stable transmission performance. In practical applications, it is often necessary to switch between the E-plane waveguide and the H-plane waveguide. At present, the most commonly used transition structure from the E-plane waveguide to the H-plane waveguide is a twisted waveguide, but the length of the twisted waveguide is long and the volume is too large, which is not conducive to the system. integrated. [0003] The traditional E-plane to H-plane conversion structure is bulky and difficult to process, and the insertion loss ...

AI Technical Summary

Problems solved by technology

In practical applications, it is often necessary to switch between the E-plane waveguide and the H-plane waveguide. At present, the most commonly used transition structure from the E-plane waveguide to the H-plane waveguide is a twisted waveguide, but the length of the twisted waveguide is long and the volume is too large, which is not conducive to the system. integrated

[0003] The traditional E-plane to H-plane conversion structure is bulky and difficult to process, and the insertion loss of the high-end microstrip line in the ka frequency band is large and the stability is poor

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