The rotating waveguide communication system on two Ka-band planes uses an open groove mechanism.

Abstract

The invention relates to an independent rotating interlocking system on two Ka-band planes. The interlocking system consists of three main parts: a transducer from WR28 waveguide to coaxial cable input and output, and an open-groove rotating mechanism. Actual measurements of the transducer show it works well in a frequency range of 0.93f0 – 1.07f0 on the Ka-band (where f0 is the center design frequency). Specifically, according to the actual manufactured product, the reflection coefficient S11 ≤ -15dB and the attenuation coefficient S21 ≤ -0.6dB.

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