Stock material or miscellaneous articles – Structurally defined web or sheet – Honeycomb-like
Patent
1991-04-15
1993-01-26
Epstein, Henry F.
Stock material or miscellaneous articles
Structurally defined web or sheet
Honeycomb-like
343872, 428911, B32B 312
Patent
active
051821559
ABSTRACT:
A radome (12) has a composite wall structure including alternating layers of extended chain polyethylene (ECPE) fiber laminate material (26,30) which provides high ballistic protection with low RF signal loss, and fiberglass honeycomb core material (28) which provides high structural rigidity. An electronics assembly (18) and antenna elements (20) are mounted inside the radome (12), with the antenna elements (20) spaced between the electronics assembly (18) and the radome wall structure. A backing plate (24) including a layer of the laminate material (32) and an electrically conductive ground plane (34) are spaced between the electronics assembly (18) and the antenna elements (20). The numbers and thicknesses of the layers of laminate material (26,30) and core material (28) in the wall structure are selected such that the combined thickness of the layers of laminate material (26,30) has a maximum value at which the RF signal loss through the wall structure at a predetermined frequency is below an acceptable value. The backing plate (24) provides even greater ballistic protection for the electronics assembly (18).
REFERENCES:
patent: 4403012 (1983-09-01), Harpell et al.
patent: 4650710 (1987-03-01), Harpell et al.
patent: 4659598 (1987-04-01), Traut
patent: 4783666 (1988-11-01), Ast et al.
patent: 4820568 (1989-04-01), Harpell et al.
patent: 4868040 (1989-09-01), Hallal et al.
patent: 4879165 (1989-11-01), Smith
patent: 4916000 (1990-04-01), Li et al.
patent: 4944974 (1990-07-01), Zachariades
patent: 4956393 (1990-09-01), Boyd et al.
"In the Air, Land and Sea Radomes' Clear Signals Prevail", Kaleidoscope, vol. V, Issue 1, Spring 1990, pp. 1, 4.
Epstein Henry F.
ITT Corporation
LandOfFree
Radome structure providing high ballistic protection with low si does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Radome structure providing high ballistic protection with low si, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radome structure providing high ballistic protection with low si will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1412018