Patent ID: 9257734
Filing Date: 2016-02-09
CPC Classification: H01P

Claim Text:
1. A system comprising: means for transitioning an electromagnetic signal from an input rectangular waveguide to a circular waveguide; means for attenuating the electromagnetic signal, the means for attenuating being coupled to the means for transitioning via a first adjustable rotation joint; a first polarization-conversion means for converting a polarization of the electromagnetic signal by introducing a first differential phase shift between a first mode of the electromagnetic signal, the first mode having a first orientation, and a second mode of the electromagnetic signal, the second mode having a second orientation that is orthogonal to the first orientation, wherein the first polarization-conversion means is coupled to the means for attenuating such that the first polarization-conversion means and the means for attenuating form a continuous section that rotates together as a pair; and a second polarization-conversion means for converting the polarization of the electromagnetic signal by introducing a second differential phase shift between the second mode of the electromagnetic signal and the first mode of the electromagnetic signal, the second polarization-conversion means being coupled to the first polarization-conversion means via a second adjustable rotation joint.