Patent ID: 11876322
Assignee: OPTIM MICROWAVE INC.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A satellite ground station antenna, comprising:
a hub comprising:
a first connecting member body,
a first circular waveguide extending through the hub coaxial with the first connecting member body and terminating at a first port at an end face of the first connecting member body,
a first window/seal to seal the first port, and
two or more pins extending radially from the first connecting member body; and

a front-side feed network comprising:
a second connecting member body comprising a cavity configured to fit over the first connecting member body, and two or more slots disposed around a perimeter of the cavity, each of the two or more slots configured to accept one of the two or more pins extending from the first connecting member body,
a second circular waveguide coaxial with the cavity and terminating at a second port within the cavity,
a second window/seal to seal the second port,
a cap configured to fit over the second connecting member body, the cap including two or more L-shaped slots, each L-shaped slot to engage one of the two or more pins extending from the first connecting member body through the slots of the second connecting member; and
a wave spring between an inside surface of the cap and a shoulder of the second connecting member body, the spring effective to urge the second port towards the first port when the two or more L-shaped slots of the cap are engaged with the two or more pins,

wherein each of the first and second window/seals comprises:
a right-circular cylindrical window having an axis;
an annular recess surrounding and coaxial with the cylindrical window; and
an annular rib surrounding and coaxial with the annular recess, an outer diameter of the annular rib configured to fit closely within an inside diameter of the respective circular waveguide.