Patent ID: 11881607
Assignee: LOCKHEED MARTIN CORPORATION
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An apparatus, comprising:
a waveguide cavity having two signal ports at a first longitudinal end and a common port at a second longitudinal end opposite the first longitudinal end;
a septum element disposed longitudinally for a septum length in the waveguide cavity starting from the first longitudinal end between the two signal ports and comprising a series of step downs established over the septum length; and
ridge elements positioned on opposing side walls of the waveguide cavity each extending longitudinally for the septum length and comprising a first thickness proximate to the first longitudinal end smoothly tapering to a second thickness at a selected longitudinal distance away from the first longitudinal end and terminating in a step discontinuity to a corresponding side wall that establishes placement in the waveguide cavity as approximately congruent with the septum element.