SRFS Teleinfra

Tight Bend Triple-Shielding Flexible Cable BM260L

Tight Bend Triple-Shielding Flexible Cable BM260L

The Tight Bend Triple-Shielding Flexible Cable BM260L is a high-performance RF cable engineered for reliable signal transmission in demanding communication and microwave applications. Its flexible construction allows tight bending and easy routing in compact installations without compromising performance. The triple-shielding design provides enhanced protection against electromagnetic interference, external noise, and signal leakage, ensuring stable and dependable connectivity. BM260L is suitable for RF test equipment, wireless communication systems, antenna assemblies, laboratory instruments, and other high-frequency applications. It offers an excellent combination of flexibility, shielding effectiveness, durability, and consistent electrical performance for professional RF installations.

Cable Construction

No. Construction Size (mm) Materials
1 Center conductor 0.56 Silver plated copper
2 Dielectric 1.70 Low density PTFE
3 Outer conductor 1.85 Silver plated copper wire braiding
4 Middle layer 1.98 Aluminum foil
5 Outer shield 2.24 Stainless steel wire
6 Jacket 2.64 FEP

Electrical

Frequency DC-50 GHz
Impedance 50 Ω
Velocity of Propagation 75%
Shielding Effectiveness >90 dB
Withstanding Voltage 500 V
*Mechanical Phase Stability <±6° @ 40GHz, <±8° @ 50GHz
Amplitude Stability vs Shaking <±0.2 dB
* Wrapped 360° around a 26 mm radius mandrel.

Mechanical & Environmental

Min. Bending Radius Static 360° 10.5mm
Min. Bending Radius Repeated 26mm
Weight 17g/m
Temperature (Operation) -50~150 °C
Temperature (Storage) -60~160 °C

Bulk Cable Attenuation

Attenuation & Average Power Specifications
Frequency MHz 300 1000 2000 4000 6000 9200 10000 12400 18000 26500 40000 50000
dB/100 Meter 32.6 60.1 85.8 122.8 151.9 190.4 199.0 223.2 272.9 337.2 424.0 480.9
Avg. Power kW 0.500 0.271 0.190 0.133 0.107 0.086 0.082 0.073 0.060 0.048 0.038 0.034
Attenuation at any frequency = [1.860000×SQRT(FMHz)] + [0.001300×FMHz]