Phase-Stable 18GHz Low-Loss RF Coaxial Cable – Model CFA640

Low-Loss RF Cable with High Phase and Amplitude Stability

The CFA640 phase-stable low-loss coaxial cable is engineered for RF and microwave applications that require repeatable signal accuracy under thermal and mechanical stress. Operating up to 18 GHz with a 50 Ω impedance, it provides ≤ ±2° @ 10 GHz and ≤ ±3° @ 18 GHz phase stability with amplitude variation within ±0.1 dB @ 18 GHz. Discover more options within the CFA Series – Phase-Stable Low-Loss Coaxial Cables.

Solid Construction for Long-Term Electrical Reliability

The CFA640 cable features a 1.57 mm solid silver-plated copper inner conductor and a low-density PTFE dielectric for minimal attenuation and tight impedance control. Its dual silver-plated copper shielding and FEP jacket offer > 90 dB EMI suppression and exceptional thermal resilience from –55 °C to +165 °C. The cable maintains phase deviation below 1400 PPM across temperature range and ensures consistent electrical stability under motion.

Mechanical Strength and Thermal Endurance

With an outer diameter of 6.35 mm and a minimum bend radius of 31 mm (single) or 63 mm (repeated), the CFA640 low-loss coaxial cable offers a balanced combination of flexibility and durability for reliable installation and long-term operation. It handles average power up to 1.88 kW @ 300 MHz while maintaining low attenuation (0.93 dB/m @ 18 GHz). For other phase-stable low-loss options, visit the Low-Loss Coaxial Cable Series.

Manufactured by Mechanc Shanghai Information Technology Co., Ltd., the CFA640 phase-stable low-loss coaxial cable combines low attenuation, tight phase control, and verified REACH and RoHS compliance to deliver stable RF performance in laboratory, defense, and industrial environments.