Determination of the Optimum Square Resistance of Absorbing Vanes of the Rotary Vane Attenuator
Igor M. Braver, Pinkhos Sh. Fridberg, and Khona L. Garb
TL;DR
This paper investigates how the square resistance of absorbing vanes affects attenuation in circular waveguides, identifying optimal resistance ranges and proposing impedance-matched vane designs for minimal reflection.
Contribution
It determines the optimal square resistance range for maximum attenuation and introduces new impedance-matched vane constructions with structural calculations.
Findings
Maximum attenuation occurs at 130-150 Ω resistance
Proposed impedance-matched vanes achieve low reflectivity
Structural calculations support practical vane design
Abstract
Dependence on the square resistance of the linear attenuation caused by an absorbing vane in a circular waveguide is investigated. The maximal attenuation is determined to be attained at the square resistance values in the range 130-150 . Special constructions of impedance-matched low-reflectivity absorbing vanes are proposed and production-ready structural calculation are carried out.
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Taxonomy
TopicsMechanical Systems and Engineering · Mechanical Failure Analysis and Simulation · Engineering Diagnostics and Reliability