Patent ID: 11923607
Assignee: SOUTHWEST RESEARCH INSTITUTE
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A transition device for transitioning microwaves from an air-filled waveguide to an antenna, the air-filled waveguide having a waveguide attachment flange, comprising:
a transition attachment flange compatible to the waveguide attachment flange;
a rod having an upper portion extending upwardly through the transition attachment flange and waveguide attachment flange, and a lower portion extending downwardly into the air-filled waveguide;
the rod being made from a solid piece of high-dielectric material;
wherein outer surfaces of the upper portion (other than its end face) are metal plated, such that the upper portion provides a solid waveguide having a radiating aperture;
and wherein the lower portion of the rod has no such plating.