IP Library › Granted Patent US 8,179,335
Granted Patent B2
US 8,179,335 · App. 12/398,046 · Granted May 15, 2012

Stepped radome and antenna having a stepped radome

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Quick Facts
Patent No.
US 8,179,335
App. No.
12/398,046
Granted
May 15, 2012
Kind
B2
Abstract

The invention may be embodied as a radome having an exterior-facing surface. The exterior-facing surface has a step. The step facilitates the movement of water toward an outer edge of the radome. The radome may be incorporated into an antenna.

Claims (22)

1. A radome having an exterior-facing surface having steps, each step having a perimeter dimension and a step dimension, wherein each step has a step ratio between 166:1 and 500:1, the step ratio being the perimeter dimension divided by the step dimension.

2. The radome of claim 1 , wherein at least one step is in a path of signals to be transmitted to a receiver by a radiator which is to be covered by the radome.

3. The radome of claim 2 , wherein at least one step intersects an imaginary line extending perpendicularly from the radiator.

4. The radome of claim 1 , wherein at least one step has an edge in the shape of a square.

5. The radome of claim 1 , wherein at least one step has an edge in the shape of a triangle.

6. The radome of claim 1 , wherein at least one step has an edge in the shape of a circle.

7. The radome of claim 1 , wherein at least one step has an edge in the shape of an oval.

8. The radome of claim 1 further comprising a water-repelling coating applied to the exterior-facing surface.

9. The radome of claim 1 wherein the exterior-facing surface is polished.

10. An antenna, comprising:

a radiator, and

a radome

having an exterior-facing surface having steps, each step having a perimeter dimension and a step dimension, wherein each step has a step ratio between 166:1 and 500:1, the step ratio being the perimeter dimension divided by the step dimension.

11. The antenna of claim 10 , wherein at least one step is in a path of signals to be transmitted to a receiver by the radiator.

12. The antenna of claim 10 , wherein the radiator is substantially planar.

13. The antenna of claim 12 , wherein at least one step intersects an imaginary line extending perpendicularly from the radiator.

14. The antenna of claim 10 , wherein at least one step has an edge in the shape of a square.

15. The antenna of claim 10 , wherein at least one step has an edge in the shape of a triangle.

16. The antenna of claim 10 , wherein at least one step has an edge in the shape of a circle.

17. The antenna of claim 10 , wherein at least one step has an edge in the shape of an oval.

18. The antenna of claim 10 further comprising a water-repelling coating applied to the exterior-facing surface.

19. The antenna of claim 10 wherein the exterior-facing surface is polished.

Assignments (17)
SECURITY INTEREST Recorded Nov 3, 2023
From: API TECHNOLOGIES CORP.; SPECTRUM CONTROL, INC.
To: API HOLDINGS I CORP. AS COLLATERAL AGENT
Reel/Frame 065457/0129 →
RELEASE OF SECURITY INTEREST Recorded Nov 3, 2023
From: CANTOR FITZGERALD SECURITIES
To: API TECHNOLOGIES CORP.; SPECTRUM CONTROL, INC.; API/INMET, INC.; SPECTRUM MICROWAVE, INC.; RF1 HOLDING COMPANY
Reel/Frame 065456/0050 →
RELEASE OF SECURITY INTEREST Recorded May 9, 2019
From: ANTARES CAPITAL LP
To: API TECHNOLOGIES, CORP; SPECTRUM CONTROL, INC.; SPECTRUM MICROWAVE, INC.
Reel/Frame 049132/0139 →
SECURITY INTEREST Recorded May 9, 2019
From: API TECHNOLOGIES CORP.; SPECTRUM CONTROL, INC.; API / WEINSCHEL, INC.; API / INMET, INC.; API CRYPTEK INC.; SPECTRUM MICROWAVE, INC.
To: ROYAL BANK OF CANADA, AS COLLATERAL AGENT
Reel/Frame 049132/0758 →
SECURITY INTEREST Recorded May 9, 2019
From: API TECHNOLOGIES CORP.; SPECTRUM CONTROL, INC.; API / INMET, INC.; API / WEINSCHEL, INC.; API CRYPTEK INC.; SPECTRUM MICROWAVE, INC.
To: CANTOR FITZGERALD SECURITIES, AS NOTEHOLDER REPRESENTATIVE
Reel/Frame 049132/0823 →
SECURITY INTEREST Recorded Apr 20, 2018
From: API TECHNOLOGIES CORP.; SPECTRUM CONTROL, INC.; SPECTRUM MICROWAVE, INC.
To: ANTARES CAPITAL LP, AS AGENT
Reel/Frame 045595/0601 →
RELEASE OF SECURITY INTEREST Recorded Apr 20, 2018
From: BNP PARIBAS, AS COLLATERAL AGENT
To: SPECTRUM CONTROL, INC.
Reel/Frame 045603/0923 →
RELEASE OF SECURITY INTEREST Recorded Apr 22, 2016
From: GUGGENHEIM CORPORATE FUNDING, LLC, AS AGENT
To: API DEFENSE, INC.; NATIONAL HYBRID, INC.; API CRYPTEK INC.; SPECTRUM CONTROL, INC.; SPECTRUM MICROWAVE, INC.; API NANOFABRICATION AND RESEARCH CORPORATION
Reel/Frame 038502/0459 →
SECURITY INTEREST Recorded Apr 22, 2016
From: API TECHNOLOGIES CORP.; SPECTRUM CONTROL, INC.; SPECTRUM MICROWAVE, INC.; API DEFENSE, INC.
To: BNP PARIBAS, AS COLLATERAL AGENT
Reel/Frame 038351/0207 →
RELEASE OF SECURITY INTEREST Recorded Mar 21, 2014
From: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS AGENT
To: API DEFENSE, INC.; NATIONAL HYBRID, INC.; API CRYPTEK INC.; SPECTRUM CONTROL, INC.; SPECTRUM MICROWAVE, INC.; API NANOFABRICATION AND RESEARCH CORPORATION
Reel/Frame 032501/0458 →
SECURITY AGREEMENT Recorded Feb 12, 2013
From: API DEFENSE. INC.; NATIONAL HYBRID. INC.,; API CRYPTEK INC.; SPECTRUM CONTROL, INC.; SPECTRUM MICROWAVE, INC.; API NANOFABRICATLON AND RESEARCH CORPORATION
To: WELLS FARGO BANK, NATIONAL ASSOCIATION (AS AGENT)
Reel/Frame 029800/0494 →
PATENT SECURITY AGREEMENT Recorded Feb 7, 2013
From: SPECTRUM MICROWAVE, INC.; API CRYPTEK INC.; API DEFENSE, INC.; SPECTRUM CONTROL, INC.; NATIONAL HYBRID, INC.; API NANOFABRICATION AND RESEARCH CORPORATION
To: GUGGENHEIM CORPORATE FUNDING, LLC
Reel/Frame 029777/0130 →
RELEASE OF SECURITY INTEREST Recorded Feb 6, 2013
From: MORGAN STANLEY SENIOR FUNDING, INC.
To: SPECTRUM CONTROL, INC.
Reel/Frame 029767/0583 →
SECURITY INTEREST Recorded Jun 9, 2011
From: SPECTRUM CONTROL, INC.
To: MORGAN STANLEY SENIOR FUNDING, INC., AS COLLATERAL AGENT
Reel/Frame 026420/0401 →
RELEASE OF SECURITY INTEREST Recorded Jun 1, 2011
From: PNC BANK, NATIONAL ASSOCIATION, AS AGENT
To: SPECTRUM CONTROL, INC.
Reel/Frame 026373/0605 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 30, 2011
From: CHERESON, JEFFREY D.
To: SPECTRUM CONTROL, INC.
Reel/Frame 026045/0886 →
SECURITY AGREEMENT Recorded Oct 13, 2010
From: SPECTRUM CONTROL, INC.
To: PNC BANK, N.A.
Reel/Frame 025129/0209 →