Overview
C-RAM PIM 645 is a line of outdoor isolation foam sheet material, comprised of urethane foam and a lossy carbon loading. C-RAM PIM 645 absorbs RF microwave energy across 700 MHz through 3 GHz frequencies. C-RAM PIM 645 has proven to be ideal for PIM reduction and isolation between antennas; it can also be used to cover fences to decouple adjacent antennas, and shield or isolate equipment. The open-cell structure permits airflow freely through the absorber. When used outdoors, rain will also freely drain from the product
| TYPICAL PROPERTIES | ||
| Porosity, pores per inch | 4-20 | |
| Tensile strength, psi | 8-12 | |
| Tear strength, lb/inch width | 2.2 | |
| Density, lb/ft3 | 3.0 | |
| Ultimate elongation (%) max | 275 | |
| ENVIRONMENTAL PROPERTIES | ||
| Operating temp., max | 200°F | |
| Ozone adverse affects | No | |
| Fungus Resistance, Evidence of fungus growth | No | |
| TYPICAL REFLECTIVITY | ||
| (dB down from reference) | ||
| C-465 | ||
| Thk. | Performance | Freq. Range |
| 0.5in. | -12 dB | 700 MHz-3GHz |
| 1.0in. | -18 dB | 700 MHz-3GHz |
METHOD OF APPLICATION
Typically C-RAM PIM 645 can be adhered in place using neoprene contact adhesives or it can be mechanically fastened using low dielectric plastic fasteners. C-RAM PIM 645 is easily cut by bandsaw, utility knife, or shears. It is easily applied to curves or cut to fit into various sizes.
AVAILABILITY
C-RAM PIM 645 is available in standard sizes of 24x24in (610x610mm) and 24x48in (610x1220mm) Other sizes are available. Cuming Microwave can also supply parts cut to drawings. Consult the factory for other sizes.
