Payload adapters including antenna assemblies, satellite assemblies and related systems and methods
View Patent ↗Payload adapters for launch vehicles include a ring structure having an opening formed therein and at least a portion of an antenna assembly coupled to a circular sidewall of the ring structure at least partially within the opening of the ring structure. Satellite assemblies may include a payload adapter comprising a ring structure having a circular opening formed therein and an antenna assembly including a parabolic reflective dish formed within the circular opening. Launch stack systems may include a primary payload and a secondary payload adapter including an antenna dish integrally formed with a ring structure of the secondary payload adapter. Methods of forming a satellite assembly include positioning at least a portion of the antenna assembly within an opening formed in a ring-shaped payload adapter for a launch vehicle and coupling the at least a portion of the antenna assembly to the ring-shaped payload adapter.
1. A payload adapter for a launch vehicle, comprising:
a ring structure having an opening formed therein, the ring structure comprising:
a first end and a second, opposing end; and
a circular sidewall extending between the first end and the second end;
at least a portion of an antenna assembly attached to the circular sidewall of the ring structure proximate the first end, the at least a portion of the antenna assembly being positioned at least partially within the opening of the ring structure, the at least a portion of an antenna assembly adapted to be attached to the circular sidewall of the ring structure before and after deployment of the ring structure from the launch vehicle.
2. The payload adapter of claim 1 , wherein the payload adapter includes at least one coupling feature at one of the first end and the second end, the at least one coupling feature configured to couple the payload adapter to at least one adjoining structure within a launch vehicle.
3. The payload adapter of claim 2 , wherein the at least one coupling feature is positioned proximate the at least a portion of the antenna assembly and is configured to couple with at least one of a primary payload and an adjacent payload adapter with a launch vehicle adapter.
4. The payload adapter of claim 1 , further comprising at least one feed coupled to and extending from the at least a portion of the antenna assembly in a direction toward the first end.
5. The payload adapter of claim 4 , wherein the at least one feed comprises at least one helical feed positioned proximate a center of the at least a portion of the antenna assembly, the at least one helical feed extending along an axis of the ring structure.
6. The payload adapter of claim 5 , further comprising an actuator configured to alter a distance that the at least one helical feed extends from the at least a portion of the antenna assembly.
7. The payload adapter of claim 1 , wherein the at least a portion of the antenna assembly comprises a parabolic, reflective dish of the antenna assembly and further comprising at least one feed coupled to and extending from the reflective dish in a direction toward the first end.
8. The payload adapter of claim 7 , wherein an outer edge of the reflective dish is coupled to the circular sidewall of the ring structure at the first end.
9. The payload adapter of claim 7 , wherein an intersection of an outer edge of the reflective dish and a circular edge of the circular sidewall form the first end of the ring structure and wherein the first end of the ring structure further comprises a flange extending radially outward from the outer edge of the reflective dish, the flange configured and positioned to couple the payload adapter to at least one adjoining structure within a launch vehicle.
10. The payload adapter of claim 1 , wherein the at least a portion of the antenna assembly comprises a planar surface.
11. The payload adapter of claim 10 , further comprising a plurality of helical feeds extending from the planar surface of the at least a portion of the antenna assembly in a direction toward the first end.
12. The payload adapter of claim 1 , wherein a parabolic reflective dish of the antenna assembly is located entirely between the first end and the second end of the ring structure.
13. A satellite assembly, comprising:
a payload adapter comprising a ring structure having a circular opening formed therein, a first end, and a second, opposing end; and
an antenna assembly comprising:
a parabolic reflective dish formed within the circular opening, wherein an entirety of the parabolic reflective dish is positioned between the first end and the second, opposing end of the ring structure of the payload adaptor, the parabolic reflective dish adapted to be positioned within the ring structure before and after deployment of the antenna assembly from a launch vehicle; and
at least one feed extending from the reflective dish.
14. The satellite assembly of claim 13 , wherein the payload adapter is configured to couple to at least another satellite assembly in a launch stack.
15. The satellite assembly of claim 13 , further comprising an actuator configured to alter a distance that the at least one feed extends from the reflective dish.
16. The satellite assembly of claim 13 , further comprising at least one attitude control system disposed within the payload adapter.
17. The satellite assembly of claim 13 , further comprising two expandable solar panels array coupled to an outer surface of the payload adapter.
18. A launch stack system for a launch vehicle, comprising:
a primary payload; and
a plurality of secondary payload adapters coupled to the primary payload, at least one secondary payload adapter of the plurality of secondary payload adapters comprising an antenna dish integrally formed with a ring structure of the at least one secondary payload adapter, the ring structure having an opening formed therein and comprising a first end, a second, opposing end, and a circular sidewall extending therebetween, the antenna dish configured to be secured to the ring structure proximate the first end before and after deployment of the at least one secondary payload adapter from the launch vehicle.
19. The launch stack system of claim 18 , wherein the at least one secondary payload adapter is coupled to at least one of the primary payload and an adjacent secondary payload adapter of the plurality of secondary payload adapters with a launch vehicle adapter, and wherein a portion of the antenna dish of the at least one secondary payload adapter is positioned at an interface between a forward end of the at least one secondary payload adapter and the launch vehicle adapter.
20. The launch stack system of claim 18 , wherein each secondary payload adapter of the plurality of secondary payload adapters comprises an antenna dish integrally formed with a ring structure of the secondary payload adapter.
21. A method of forming a satellite assembly, the method comprising:
positioning at least a portion of an antenna assembly within an opening formed in a ring shaped payload adapter for a launch vehicle comprising a first end, a second, opposing end, and a circular sidewall extending therebetween; and
coupling an outer edge of the at least a portion of the antenna assembly to the ring shaped payload adapter proximate the first end of the ring shaped payload adapter such that the antenna assembly is configured to be positioned within the ring shaped payload adapter before and after deployment of the ring shaped payload adapter from the launch vehicle.
22. The method of claim 21 , further comprising positioning at least one feed extending along an axis of the ring-shaped payload adapter.
23. The method of claim 22 , wherein coupling an outer edge of the at least a portion of the antenna assembly to the ring-shaped payload adapter comprises coupling the outer edge of the at least a portion of the antenna assembly at a first end of the ring-shaped payload adapter.
24. The method of claim 23 , wherein positioning at least a portion of the antenna assembly within an opening formed in a ring-shaped payload adapter comprises positioning a parabolic dish at a forward end of the ring-shaped payload adapter such that the parabolic dish extends from the forward end into the ring-shaped payload adapter.