SRFS Teleinfra

ACTV520 Thermal Vacuum Phase Stable Low Loss RF Cable

ACTV520 Thermal Vacuum Phase Stable Low Loss RF Cable

The Thermal Vacuum Phase Stable Low Loss Cable ACTV520 is a specialized RF cable designed for demanding thermal vacuum environments and high-frequency applications. It combines low insertion loss with excellent phase stability across temperature variations, supporting accurate and consistent signal transmission. Its robust construction makes it suitable for applications where reliability, controlled impedance, and stable electrical performance are essential. The ACTV520 cable is ideal for aerospace systems, satellite communications, vacuum chambers, RF testing, antenna systems, microwave equipment, and other precision environments requiring dependable performance under thermal cycling and vacuum conditions.

Cable Construction

No. Construction Size (mm) Materials
1 Center Conductor 1.45 Solid silver-plated copper
2 Dielectric 4.00 Low density PTFE
3 Outer Conductor 4.20 Silver-plated copper tape wrap
4 Interlayer 4.40 Low density PTFE
5 Outer Shield 4.80 Silver-plated copper wire braid
6 Jacket 5.30 FEP

Electrical

 
Frequency DC-26.5 GHz
Impedance 50 Ω
Velocity of Propagation 82%
Shielding Effectiveness >90 dB
Withstanding Voltage 1500 V
*Mechanical Phase Stability <±5°
Amplitude Stability vs Shaking <±0.15 dB
* Wrapped 360° around a 53mm radius mandrel.

Mechanical & Environmental

Min. Bending Radius Static 27mm
Min. Bending Radius Repeated 53mm
Weight 63g/m
Temperature (Operation) -55~150 °C
Temperature (Storage) -60~160 °C

Bulk Cable Attenuation

Frequency MHz 300 1000 2000 4000 6000 8000 10000 12000 14000 18000 20000 26500
dB/100 Meter 12.5 23.0 32.7 46.6 57.4 66.6 74.8 82.3 89.3 101.9 107.8 125.2
Avg. Power kW 1.608 0.875 0.615 0.431 0.350 0.302 0.268 0.244 0.225 0.197 0.186 0.160
Attenuation at any frequency = [0.715686×SQRT(FMHz)] + [0.000328×FMHz]