Patent ID: 8816799

Claim:
A waveguide assembly, comprising: a straight tubular portion having a length and comprising: a tube wall, the tube wall forming a first open end, wherein the first open end has a first cross section shape and an edge; a first longitudinal feature disposed on a first surface of the tube wall, wherein the first longitudinal feature extends parallel to a length of the straight tubular portion and extends the length of the straight tubular portion, and wherein the first longitudinal feature forms a first attachment point at the edge of the first open end; a first attachable flange that corresponds to the first cross section shape, wherein the first attachable flange is configured to couple to the first open end such that the first open end aligns with the first attachable flange; and a first fastener configured to couple the first attachable flange to the first open end at the first attachment point, wherein the first attachment point is configured to receive the first fastener.