Phase-Stable 40GHz Rugged Precision Test Coaxial Cable with FEP Jacket – Model CFT420A70

Armored Phase-Stable Coaxial Cable for 40 GHz Precision RF and Microwave Testing

The CFT420A70 armored phase-stable precision test coaxial cable is designed for accurate RF and microwave measurements up to 40 GHz with added mechanical protection for demanding handling conditions. The 50 Ω impedance platform combines low loss with stable behavior for calibration, verification, and component characterization. Fully REACH and RoHS compliant, the CFT420A70 fits laboratory and production environments where cables are frequently moved or routed. Explore the complete CFT Series – Low-Loss & Phase-Stable Precision Test Cables for additional variants.

High-Frequency Performance with Tight Amplitude Stability

The CFT420A70 precision coaxial cable supports operation to 40 GHz with amplitude stability ≤ ±0.05 dB @ 40 GHz and 81% velocity of propagation. Phase stability is specified at ≤ ±3° @ 18 GHz and ≤ ±5° @ 26.5 GHz, supporting repeatable measurement workflows. The design also provides 500 VDC withstand voltage and >90 dB shielding effectiveness. Typical attenuation is 0.394 dB/m @ 1 GHz and 2.641 dB/m @ 40 GHz. For a non-armored alternative in the same frequency class, see CFT420.

FEP Jacket with Armor Layers for Improved Durability

The CFT420A70 uses a 4.20 mm FEP jacket plus armor layers (6.40 mm) and an outer armor jacket (7.00 mm) with bicolor PTFE weaving for enhanced abrasion resistance. The cable is designed for long bending life with a 70 mm single-bend radius, and a wide temperature range from –55 °C to +165 °C supports stable operation under thermal variation. For more phase-stable and precision-test options, browse the Precision Test Coaxial Cable Series.

Applications in 40 GHz Measurement Systems and Calibration Setups

The CFT420A70 armored phase-stable coaxial cable is suited for 40 GHz VNA measurements, microwave module verification, production ATE, and precision calibration assemblies where mechanical robustness is required. For impedance-matched terminations and transition design, explore the RF connector portfolio including precision 2.92 mm, 2.4 mm, and 1.85 mm interfaces.

Manufactured by Mechanc Shanghai Information Technology Co., Ltd., the CFT420A70 armored precision test coaxial cable combines low attenuation, stable electrical behavior, and reinforced durability with verified REACH and RoHS compliance for professional RF and microwave testing.