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

Claim 9:
10. A method, comprising:
forming a waveguide cavity having two signal ports at a first longitudinal end and a common port at a second longitudinal end;
forming a stepped septum element in the waveguide cavity extending for a septum length and starting from the first longitudinal end between the two signal ports; and
forming two ridge elements on opposing side walls of the waveguide cavity, each extending longitudinally for the septum length comprising a first thickness proximate to the first longitudinal end smoothly tapering to a second thickness at a selected longitudinal length 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 stepped septum element.