SA Foam Angular Cone Absorber Material
Product Appearance

Applications
Electromagnetic Anechoic Chambers (Anechoic Chambers, Microwave Anechoic Chambers, EMC Chambers, etc.);
Electromagnetic Anechoic Boxes;
Absorbent Screens and Absorbent Walls;
For indoor use;
Cover reflective surfaces in test environments to reduce background noise, eliminate stray interference, and enhance test accuracy;
Operating temperature: -50°C to +80°C, with short-term tolerance up to 120°C;
Power capacity: 1 kW/m², short-term 1.5 kW/m².

Antenna Anechoic Chamber Utilizing SA-Type Foam Solid Pyramid Absorber Material
Product Introduction
| Product Name | SA Foam Angular Cone Absorber Material |
| Material | Polyurethane flexible foam, carbon black, flame retardant |
| Operating Temperature | -50℃~+120℃ |
| Power Capacity | 1.5Kw/m² |
| Thickness | 30-70mm |
| Dimensions | 500*500mm |
| Environmentally Friendly | ROHS |
Product Description
Tetrapyramidal pyramid shape with neat, aesthetically pleasing, and clean appearance; flexible and bendable with
excellent physical properties;
High-quality polyurethane foam body with carbon black as the absorptive component, dust-free and non-shedding;
Resistant to voltage, flame ignition, and flame spread; flame-retardant;
High oxygen index, passing fire simulation tests;
Excellent environmental performance, compliant with RoHS directives; all raw materials meet environmental standards, utilizing inorganic flame retardants that are non-volatile, odorless, and non-toxic; flame-retardant properties remain stable without degradation over long-term use.
Electrical Properties
| Model | Part Number | Weight Kg/m² | Maximum Vertical Incidence Reflectance at Specific Frequency (GHz) Rw (-dB) | ||||||
| 35 | 15 | 10 | 5 | 3 | 2 | 1 | |||
| SA-30 | 19.00.002.0172 | 1.1 | 40 | 35 | 30 | 20 | 17 | 10 | 6 |
| SA-50 | 19.00.002.0051 | 1.8 | 45 | 40 | 35 | 25 | 20 | 17 | 10 |
| SA-70 | 19.00.002.0157 | 2.5 | 45 | 40 | 35 | 30 | 25 | 20 | 13 |
| Material Thickness/Operating Wavelength d/λ | Specific Angle of Incidence Reflectance - dB | ||
| 0° | 60° vertical polarization | 60° horizontal polarization | |
| 0.25 | 15 | 11 | 7 |
| 0.5 | 20 | 16 | 11 |
| 1 | 30 | 20 | 15 |
| 2 | 40 | 30 | 23 |
| 6 | 50 | 42 | 33 |
| 20 | 55 | 50 | 43 |
At oblique incidence within 30° of the incident angle, Rw remains relatively stable; performance decreases with increasing angle, with Rw at 60° being 10–15 dB lower than at normal incidence. Scatter levels are generally low, though occasional points may exhibit reflections comparable to those at normal or oblique incidence.