IP Library Granted Patent US 10,263,325
Granted Patent B2
US 10,263,325 · App. 15/831,258 · Granted Apr 16, 2019

Modularized feed array arrangement

Inventors: Gordon Wu (Sunnyvale, CA); Matthew Stephen Parman (Mountain View, CA); Robert Jones (Union City, CA); Philip Alley (Mountain View, CA); Jonathan Dirrenberger (San Francisco, CA)
Assignee: Space Systems/Loral, LLC
H01Q1/50H01Q1/288H01Q13/02H01Q19/10H01Q21/0025H03F3/19H03F3/245H04B7/18515H03F2200/294H03F2200/447H03F2200/451
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Quick Facts
Patent No.
US 10,263,325
App. No.
15/831,258
Granted
Apr 16, 2019
Kind
B2
Abstract

A modularized feed array arrangement includes a plurality of radio frequency (RF) radiating elements, a plurality of waveguides positioned inboard of the plurality of RF radiating elements, each RF radiating element being electrically coupled with an outboard portion of one or more of the waveguides; and a plurality of modules, each module including a plurality of RF switches, a plurality of amplifiers, and a manifold panel that includes a plurality of RF choke joints. An inboard portion of each RF switch is electrically coupled with a respective amplifier. Each RF choke joint includes a proximal portion electrically coupled with an outboard portion of a respective one of the RF switches and a distal portion electrically coupled with an inboard portion of a respective one of the waveguides.

Claims (42)

1. An apparatus comprising:

a modularized feed array arrangement, the feed array arrangement including:

a plurality of radio frequency (RF) radiating elements;

a plurality of waveguides positioned inboard of the plurality of RF radiating elements, each RF radiating element being electrically coupled with an outboard portion of one or more of the waveguides; and

a plurality of modules, each module including a plurality of RF switches, a plurality of amplifiers, and a manifold panel that includes a plurality of RF choke joints; wherein:

an inboard portion of each RF switch is electrically coupled with a respective amplifier; and

each RF choke joint includes a proximal portion electrically coupled with an outboard portion of a respective one of the RF switches and a distal portion electrically coupled with an inboard portion of a respective one of the waveguides.

2. The feed array arrangement of claim 1 , wherein each module is electrically independent from each other module.

3. The feed array arrangement of claim 1 , wherein at least one module is mechanically independent from each other module.

4. The feed array arrangement of claim 1 , wherein at least one module includes one or more heat pipes thermally coupled with at least one of the plurality of amplifiers.

5. The feed array arrangement of claim 1 , wherein the plurality of amplifiers includes one or more of a low noise amplifier (LNA) of a receiver and a solid state power amplifier (SSPA) of a transmitter.

6. The feed array arrangement of claim 1 , wherein at least one module includes a plurality of spare amplifiers.

7. The feed array arrangement of claim 1 , wherein the manifold panel of each module is detachably coupled with a respective subset of the waveguides.

8. The feed array arrangement of claim 1 , wherein:

at least one module includes a transmitter and at least one module includes a receiver; and

at least one RF radiating element is electrically coupled with both the transmitter and the receiver.

9. The feed array arrangement of claim 1 , wherein each of the plurality of RF radiating elements is associated with exactly one respective directed RF beam.

10. The feed array arrangement of claim 1 , wherein each of a plurality of directed RF beams is associated with a respective single one of the plurality of RF radiating elements.

11. The feed array arrangement of claim 1 , wherein:

the feed array arrangement is assembled by fabricating the plurality of modules and mechanically coupling the plurality of fabricated modules with a structural panel by attaching an outboard surface of each manifold panel to an inboard surface of the structural panel; and

attaching the outboard surface of each manifold panel to the inboard surface of the structural panel includes electrically coupling the distal portion of each RF choke joint with the inboard portion of a respective one of a plurality of waveguides.

12. A spacecraft comprising:

an antenna reflector; and

a modularized feed array arrangement, the feed array arrangement including:

a plurality of radio frequency (RF) radiating elements;

a plurality of waveguides positioned inboard of the plurality of RF radiating elements, each RF radiating element being electrically coupled with an outboard portion of one or more of the waveguides; and

a plurality of modules, each module including a plurality of RF switches, a plurality of amplifiers, and a manifold panel that includes a plurality of RF choke joints; wherein:

an inboard portion of each RF switch is electrically coupled with a respective amplifier; and

each RF choke joint includes a proximal portion electrically coupled with an outboard portion of a respective one of the RF switches and a distal portion electrically coupled with an inboard portion of a respective one of the waveguides.

13. The spacecraft of claim 12 , wherein at least one module includes one or more heat pipes thermally coupled with at least one of the plurality of amplifiers.

14. The spacecraft of claim 12 , wherein the manifold panel of each module is detachably coupled with a respective subset of the waveguides.

15. The spacecraft of claim 12 , wherein each of the plurality of RF radiating elements is associated with exactly one respective directed RF beam.

16. The spacecraft of claim 12 , wherein each of a plurality of directed RF beams is associated with a respective single one of the plurality of RF radiating elements.

17. A method comprising

fabricating a plurality of modules, each module including a plurality of RF switches, a plurality of amplifiers, and a manifold panel that includes a plurality of RF choke joints; and

mechanically coupling the plurality of fabricated modules with a structural panel by attaching an outboard surface of each manifold panel to an inboard surface of the structural panel; wherein

an inboard portion of each RF switch is electrically coupled with a respective amplifier,

each RF choke joint includes a proximal portion electrically coupled with an outboard portion of a respective one of the RF switches; and

attaching the outboard surface of each manifold panel to the inboard surface of the structural panel includes electrically coupling a distal portion of each RF choke joint with an inboard portion of a respective one of a plurality of waveguides.

18. The method of claim 17 , wherein an outboard portion of each of the plurality of waveguides is electrically coupled with a respective RF radiating element.

19. The method of claim 18 , wherein each of the plurality of RF radiating elements is associated with exactly one respective directed RF beam.

20. The method of claim 18 , wherein each of a plurality of directed RF beams is associated with a respective single one of the plurality of RF radiating elements.

Assignments (14)
CHANGE OF NAME Recorded Jan 7, 2026
From: MAXAR SPACE LLC
To: LANTERIS SPACE LLC
Reel/Frame 074270/0351 →
CHANGE OF NAME Recorded Nov 6, 2025
From: MAXAR SPACE LLC
To: LANTERIS SPACE LLC
Reel/Frame 073512/0398 →
CHANGE OF NAME Recorded Jun 5, 2023
From: SPACE SYSTEMS/LORAL, LLC
To: MAXAR SPACE LLC
Reel/Frame 063861/0016 →
RELEASE (REEL 060389/FRAME 0720) Recorded May 12, 2023
From: ROYAL BANK OF CANADA
To: MAXAR INTELLIGENCE INC.; MAXAR SPACE LLC
Reel/Frame 063633/0431 →
INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded May 5, 2023
From: MAXAR INTELLIGENCE INC. (F/K/A DIGITALGLOBE, INC.); AURORA INSIGHT INC.; MAXAR MISSION SOLUTIONS INC. ((F/K/A RADIANT MISSION SOLUTIONS INC. (F/K/A THE RADIANT GROUP, INC.)); MAXAR SPACE LLC (F/K/A SPACE SYSTEMS/LORAL, LLC); SPATIAL ENERGY, LLC; MAXAR SPACE ROBOTICS LLC ((F/K/A SSL ROBOTICS LLC) (F/K/A MDA US SYSTEMS LLC)); MAXAR TECHNOLOGIES HOLDINGS INC.
To: SIXTH STREET LENDING PARTNERS, AS ADMINISTRATIVE AGENT
Reel/Frame 063660/0138 →
TERMINATION AND RELEASE OF PATENT SECURITY AGREEMENT - RELEASE OF REEL/FRAME 060389/0782 Recorded May 4, 2023
From: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
To: MAXAR INTELLIGENCE INC.; MAXAR SPACE LLC
Reel/Frame 063544/0074 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS AND TRADEMARKS - RELEASE OF REEL/FRAME 051258/0720 Recorded May 4, 2023
From: ROYAL BANK OF CANADA, AS AGENT
To: MAXAR INTELLIGENCE INC.; MAXAR SPACE LLC
Reel/Frame 063542/0543 →
RELEASE OF SECURITY INTEREST Recorded Jun 21, 2022
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: DIGITALGLOBE, INC.; SPACE SYSTEMS/LORAL, LLC; RADIANT GEOSPATIAL SOLUTIONS LLC
Reel/Frame 060390/0282 →
SECURITY AGREEMENT Recorded Jun 17, 2022
From: MAXAR INTELLIGENCE INC.; MAXAR SPACE LLC
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 060389/0782 →
SECURITY AGREEMENT Recorded Jun 16, 2022
From: MAXAR INTELLIGENCE INC.; MAXAR SPACE LLC
To: ROYAL BANK OF CANADA
Reel/Frame 060389/0720 →
PATENT SECURITY AGREEMENT Recorded Sep 23, 2020
From: SPACE SYSTEMS/LORAL, LLC
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT
Reel/Frame 053866/0810 →
SECURITY AGREEMENT (NOTES) Recorded Dec 12, 2019
From: DIGITALGLOBE, INC.; RADIANT GEOSPATIAL SOLUTIONS LLC; SPACE SYSTEMS/LORAL, LLC (F/K/A SPACE SYSTEMS/LORAL INC.)
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, - AS NOTES COLLATERAL AGENT
Reel/Frame 051262/0824 →
AMENDED AND RESTATED U.S. PATENT AND TRADEMARK SECURITY AGREEMENT Recorded Dec 11, 2019
From: SPACE SYSTEMS/LORAL, LLC
To: ROYAL BANK OF CANADA, AS COLLATERAL AGENT
Reel/Frame 051258/0720 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 20, 2017
From: WU, GORDON; PARMAN, MATTHEW STEPHEN; JONES, ROBERT; ALLEY, PHILIP; DIRRENBERGER, JONATHAN
To: SPACE SYSTEMS/LORAL, LLC
Reel/Frame 044454/0324 →
Continuity (2)
Provisional Application 62486123 · Apr 17, 2017
Related Publication 20180301800A1 · Oct 18, 2018