Specialty Microwave Absorbers
RFHC - Treated Honeycomb Core Absorbers
RFHC is a broadband microwave absorbing honeycomb core material. Laird Technologies uses either Nomex® or fiberglass honeycomb core and applies a “lossy” coating to it. The RF core can have a uniform coating to optimize insertion loss or a graded coating to optimize reflection loss. The cell sizes generally used are 0.125” to 0.187” (3.2 mm to 4.8 mm) thick with densities of 3 to 4 lb./ft³.
Laird Technologies can optimize the performance to account for laminated skins or core and can assist in selecting the right materials to minimize performance degradation.
Applications
- Spiral antennas
- High-power antenna couplers
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