ABS-SRB is an epoxy-based, magnetically loaded microwave absorber material developed by ABS Technics. Due to the rigidity of this material, it can be custom-machined into specific shapes. It is commonly used in microwave applications such as RF loads, signal filters, and as a current suppressor on the surface of antenna elements.
ABS-SRB is available in five different grades, ranging from 55 to 220 dB/cm at 18 GHz, each with specific electrical RF attenuation parameters depending on the frequency, thereby covering a broad range of applications. Typical applications include waveguide terminations, coaxial terminations, antenna elements, satellite communications, and LNBs for satellite dishes.
Key Features of ABS-SRB Material:
- Frequency range: > 1 GHz
- Maximum operating temperature: 170°C
- Density: 3.5 – 4.8 g/cc
- Hardness: 85 Shore D
- Water absorption: < 0.3% (24 hours)
Standard shapes include bars, rods, and sheets in various dimensions. These are typically used for machining into custom 3D shapes and sizes. The ABS-SRB absorber material can be fixed using an epoxy adhesive, determined in consultation. For mechanical fixation, finished parts can be supplied with features such as threaded screw holes for direct mounting in the application.
For high-volume production, thermoplastic damping materials suitable for injection molding are also available.
