An e-h conversion waveguide device

Abstract

The invention relates to an E-H conversion waveguide device, comprising a concave upper waveguide and a lower waveguide, the semi-open cavity of the upper waveguide and the lower waveguide constitute an E-plane waveguide channel, and the lower hollow waveguide is provided with an E-plane waveguide channel. The H-plane waveguide channel connected with the waveguide channel has an E-plane rectangular step inside the lower waveguide, and at the turning junction of the H-plane waveguide channel and the E-plane waveguide channel, and the H-plane waveguide channel and the E-plane waveguide channel are interlaced inside the upper waveguide An H-surface rectangular step unit is provided at the center, the upper edge of the H-surface rectangular step unit is connected to the top surface of the E-plane waveguide channel, and the lower edge of the H-surface rectangular step unit is connected to the top surface of the E-plane waveguide channel. Through the device of the present invention, the transition structure from the traditional E-plane waveguide to the H-plane waveguide is abandoned, and three rectangular steps protrude through the overlapping part of the E-plane and H-plane, and the electromagnetic wave steering meets the requirements of bandwidth, electromagnetic compatibility, and signal leakage at the same time. The invention has the characteristics of simple structure, small volume, convenient processing and the like.

Description

technical field [0001] The invention belongs to the technical field of filters, and in particular relates to an E-H conversion waveguide device. Background technique [0002] The waveguide structure is one of the most commonly used circuit structures in microwave and millimeter wave circuits. The biggest feature of the waveguide structure is small insertion loss and high sealing. The electromagnetic energy is completely bound in the waveguide channel, thereby reducing the leakage of microwave signals and avoiding interference. Other communication systems, improve the electromagnetic compatibility of the whole system. [0003] In practical applications, E-plane waveguides and H-plane waveguides are often used, among which E-H conversion is an important part of module or system design. The most commonly used transition structure from E-plane waveguide to H-plane waveguide is twisted waveguide. Twisted waveguide is also called waveguide twisted joint, the direction of the wid...

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned defects in the prior art, the purpose of the present invention is to provide a novel E-H conversion waveguide device with smaller volume, simple processing and lower cost, so as to solve the problems of relatively long length, inflexibility and incompactness of the waveguide transition device.

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