Patent ID: 11888230
Assignee: SPACE EXPLORATION TECHNOLOGIES CORP.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A parabolic antenna assembly, comprising:
a main reflector;
a feed system in RF communication with the main reflector and including a horn and a dielectric portion; and
a sub-reflector in RF communication with the feed assembly, wherein the sub-reflector includes a body portion and a stem portion mechanically coupled to one another, wherein the body portion extends from a first end to a second end and defines a channel extending therein from the second end, wherein a reflecting surface of the sub-reflector is defined by at least a portion of the body portion and at least a portion of the stem portion, wherein the dielectric portion spaces the sub-reflector from the horn, and wherein the sub-reflector includes an axially-symmetric choke for providing virtual continuity at the reflecting surface, and wherein the channel defines at least a first portion of the axially-symmetric choke.