High power handling microporous pyramid absorbers 3690
Microporous pyramid absorbers can support inside and outside ventilation circulation
High power handling microporous pyramid absorbers can support inside and outside ventilation circulation, which would further improve the power handling capacity of such absorbers; it is mainly applied in high power shield cabinet, ventilation vents of anechoic chambers, and etc.
Characteristics
- Good flame retardant characteristics, it won’t burn when it encounters fire, it has oxygen index ≥ 60% and flame retardant B1 level.
- Good power handling property, power handling under forced air cooling (continuous wave) can be up to 8-10kW/m2.
- It uses keel mounting method, without any adhesive.

Schematic diagram of Flame retardant ventilation pyramid absorber

3690 - High power handling pyramid absorbers Reflection loss under vertical incidence (-dB @ GHz)

Please note : These values are measured under laboratory conditions. Results may vary in other situations; please read our Guarantee.
Product specification and part numbers
Part number | Base size (mm x mm) |
Pyramid quantity per unit |
Unit size A x C x B (mm x mm x mm) |
Standard weight (kg/m2) |
3690-300 | 500 × 500 | 64 | 300 × 60 × 50 | 13 |
3690-500 | 64 | 500 × 60 × 76 | 19 | |
3690-690 | 36 | 690 × 80 × 90 | 20 | |
3690-1000 | 16 | 1000 × 123 × 160 | 26 |
Reflection loss / Shielding performance
Part number | Reflection loss under vertical incidence (-dB @ GHz) | Power handing capacity kW/m2 (at room temperature) | |||||||||
0.08 | 0.3 | 0.5 | 1 | 3 | 6 | 10 | 18 | 40 | 100 | ||
3690-300 | 25 | 35 | 40 | 50 | 50 | 50 | 50 | 45 | 3 | ||
3690-500 | 20 | 30 | 40 | 45 | 50 | 50 | 50 | 50 | 45 | 4 | |
3690-690 | 8 | 25 | 35 | 40 | 50 | 50 | 50 | 50 | 50 | 45 | 5 |
3690-1000 | 11 | 30 | 40 | 45 | 50 | 50 | 50 | 50 | 50 | 45 | 5 |
These values are measured under laboratory conditions. In your situation results may differ, please read our Guarantee |
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Technical datasheets
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