Patent ID: 8248178
Filing Date: 2012-08-21
Classification: H01P

Abstract:
1. A waveguide polarizer, comprising: a hollow waveguide body having an interior surface; a first ridge disposed on the interior surface of the hollow waveguide body and having an inward-facing surface; a first plurality of projections disposed on the inward-facing surface of the first ridge, the projections of the first plurality having a width and a length, wherein the width is narrower than a width of the first ridge, and wherein the length is tunable; a second ridge disposed on the interior surface of the hollow waveguide body opposite the first ridge, the second ridge having an inward-facing surface; a second plurality of projections disposed on the inward-facing surface of the second ridge, the projections of the second plurality having a width and a length, wherein the width is narrower than a width of the second ridge, and wherein the length is tunable; third and fourth ridges disposed on the interior surface of the hollow waveguide body, the third ridge and the fourth ridge each having an inward-facing surface; a third plurality of projections disposed on the inward-facing surface of the third ridge; and a fourth plurality of projections disposed on the inward-facing surface of the fourth ridge, the third and fourth ridges each having a height that is shorter than a height of the first and second ridges, the third and fourth ridges being disposed orthogonally to the first and second ridges, and the projections of the third and fourth pluralities having a length that is shorter than the length of the projections of the first and second pluralities.