SRFS Teleinfra

Ultra-Low Loss & Phase Stable Cable

Ultra-Low Loss & Phase Stable Cable

Ultra-Low Loss & Phase Stable Cable is a precision RF cable designed for applications requiring minimal signal attenuation and consistent phase performance. Its advanced construction helps maintain excellent signal integrity, stable electrical characteristics, and reliable transmission across demanding RF and microwave systems. The cable is suitable for RF test and measurement equipment, telecommunications, aerospace, defense, wireless communication, laboratory systems, and electronic assemblies. Its flexible design supports convenient routing and installation while maintaining dependable performance. Combining ultra-low loss, phase stability, and mechanical flexibility, this cable provides a reliable solution for precision applications requiring accurate measurements and repeatable RF performance.

Construction

No. Construction Size (mm) Materials
1 Inner Conductor 1.45 Solid Silver-plated copper
2 Dielectric 3.99 Low density PTFE
3 Inner Shield 4.19 Silver-plated copper tape
4 Outer Shield 4.60 Silver-plated copper wire braid
5 Jacket 5.20 PFA

Electrical and Mechanical Specifications

Frequency Range DC-26.5 GHz
Cut-off Frequency 29 GHz
Impedance 50 Ω
Velocity of Propagation 83%
Shielding Effectiveness 90 dB min.
Voltage Withstand 1500 V DC
PIM -155 dBc
Phase Stability 750 PPM @ -55°C ~ +85°C max
Bend Radius (Installation) 52.0 mm
Bend Radius (Repeated) 26.0 mm
Weight 67 g/m
Temperature (Storage) -55 ~ 165 °C

Attenuation and Power

Attenuation & Power Handling
Frequency (GHz) 0.1 0.3 0.5 1 2 4 6 8 12 18 26.5
Attenuation (dB/100 Meter) 7.4 12.8 16.5 23.5 33.3 47.5 58.6 68.0 83.9 103.9 127.6
Avg. Power (kW) 2934 1688 1305 919 646 453 368 317 256 207 169