SRFS Teleinfra

ACTV380

ACTV380 Thermal Vacuum Phase Stable Low Loss RF Cable

The Thermal Vacuum Phase Stable Low Loss Cable ACTV380 is a high-performance RF and microwave cable engineered for demanding thermal vacuum environments. 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 performance, and environmental durability are essential. ACTV380 is ideal for satellite systems, aerospace electronics, thermal vacuum testing, RF test equipment, communication systems, and high-frequency instrumentation. The cable delivers dependable performance in challenging environments requiring stable phase characteristics and efficient RF signal transmission.

Cable Construction

No. Construction Size (mm) Materials
1 Center Conductor 1.02 Solid silver-plated copper
2 Dielectric 2.80 Low density PTFE
3 Outer Conductor 3.00 Silver-plated copper tape wrap
4 Interlayer 3.24 Low density PTFE
5 Outer Shield 3.50 Silver-plated copper wire braid
6 Jacket 3.80 FEP

Electrical

Frequency DC-40 GHz
Impedance 50 Ω
Velocity of Propagation 82%
Shielding Effectiveness >90 dB
Withstanding Voltage 900 V
*Mechanical Phase Stability <±6°
Amplitude Stability vs Shaking <±0.15 dB
* Wrapped 360° around a 38mm radius mandrel.

Mechanical & Environmental

Min. Bending Radius Static 19mm
Min. Bending Radius Repeated 38mm
Weight 32g/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 26500 40000
dB/100 Meter 17.3 31.9 45.5 64.9 80.1 93.1 104.7 115.3 125.1 143.0 176.1 220.5
Avg. Power kW 0.940 0.511 0.359 0.251 0.203 0.175 0.156 0.141 0.130 0.114 0.093 0.074
Attenuation at any frequency = [0.991549×SQRT(FMHz)] + [0.000555×FMHz]