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Cuming Microwave is the only full service supplier in the world offering a complete line of dielectric, artificial dielectrics, ray domes, RF absorbers and anechoic chambers for the international aerospace and electronics and defense industries. |
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High Power Honeycomb Microwave Absorber
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Picture(s) |
Model |
Features | |
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C-RAM SFC-HC
HIGH POWER
BROADBAND HONEYCOMB
MICROWAVE ABSORBER
PYRAMIDAL
500 MHz - 18 GHz
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C-RAM SFC-HC is a series of high power broadband honeycomb RF absorbers made from specially treated Pyramidal Honeycomb. Using a steep pyramid design, which provides an impedance gradient, C-RAM SFC-HC provides premium performance in anechoic chambers at both normal and off-normal incidence angles.
Phenolic Coating
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Air Velocity, ft/min.
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Watts/inČ | |
200 |
20 | |
300 |
40 | |
400 |
60 | |
600 |
80 |
Neoprene Coating
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Air Velocity, ft/min.
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Watts/inČ | |
100 |
6 | |
300 |
12 |
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PHYSICAL CHARACTERISTICS
TYPICAL REFLECTIVITY AT NORMAL INCIDENCE (dB)
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Honeycomb Radar Absorber
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Picture(s) |
Model |
Features |
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C-RAM HC
LIGHTWEIGHT, STRUCTURAL, BROADBAND
HONEYCOMB RADAR ABSORBER
FLAT SHEET
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C-RAM HC is a series of radar absorbing products made from Nomex/phenolic or glass/phenolic honeycomb with a proprietary lossy coating. Typically, Nomex/phenolic is used in most applications. The hexagonal open cell structure provides a high strength-to-weight ratio, making C-RAM HC an ideal material for aircraft parts, such as fairings, covers, and leading edges, which must combine strength, light weight, and low radar cross section. Honeycomb is also ideal for cavity backed spiral antenna applications. The open cells permit forced air cooling, allowing high-power applications. On special order skins can be provided on the core, typically glass, Kevlar, or AstroQuartz skins can be provided. Custom composite shapes are also available per customer drawings. | |
C-RAM HCGR X/Y:
Gradient loaded flat sheets with reflectivity as follows, where X = thickness and Y=reflectivity.
0.500" -15 dB minimum 10GHz to 18 GHz 0.750" -15 dB minimum 8 GHz to 18 GHz 1.000" -15 dB minimum 6 GHz to 18 GHz |
C-RAM HCGI X/Y:
Gradient loaded flat sheets with insertion loss tuned to customer requirements, where X = thickness in inches and Y = insertion loss in dB/inch. Maximum insertion loss is 20 dB/inch.
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C-RAM HCUI X/Y:
Uniformly loaded flat sheets with insertion loss tuned to customer requirements, where X = thickness and Y = insertion loss in dB/inch. Maximum insertion loss is 30 dB/inch.
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MIL-STD
461/462 E & RTCA-DO160 Absorber
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C-RAM SFC-EM
RF ABSORBER FOR EMC CHAMBERS
TRUNCATED PYRAMIDAL
MIL-STD 461/462E
RTCA-DO160
EN 1000-4-3
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The C_RAM SFC-EM product is similar to standard C-RAM SFC
pyramidal grades, but having the tips of the pyramids truncated. This saves
space in small chambers and provides a more rugged product, eliminating the
possibility of tip breakage.
C-RAM SFC-24 EM meets the requirements for MIL-STD
461/462D.
C-RAM SFC-36 EM and C-RAM SFC-24 EM, in an appropriate
combination in a chamber, are an ideal absorber treatment for Immunity Test
Chambers (EN 1000-4-3 and equivalent specifications). |
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C-RAM SFC-EM PHYSICAL CHARACTERISTICS
TYPICAL REFLECTIVITY AT NORMAL INCIDENCE (dB)
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