Harsh Environment RF Cable Assemblies

Harsh Environment RF Cable Assemblies from Amphenol Military & Aerospace integrate Times Microwave Systems’ MilTech®‑series flexible coaxial technology into sealed, vibration‑resistant assemblies qualified for military and aerospace duty cycles. Each assembly maintains stable electrical performance and environmental sealing where ordinary cables fail.

Construction and Performance

• Spiral flat‑strip braid construction balances phase stability under flexure with high mechanical flexibility.
• Completely vapor‑sealed outer jacket prevents moisture and fluid ingress for long‑term reliability.
• Mechanical and chemical testing to MIL‑T‑81490 and MIL‑C‑87104 standards validates durability against salt fog, fuel, hydraulic fluid, and temperature cycling.
• Typical RF leakage below –90 dB per foot and operating voltages up to 2,500 V (1,000 V with SMA interfaces).

Series Variants

The MilTech range covers multiple cable diameters from MT‑160 to MT‑650, offering trade‑offs between attenuation and flexibility. Each base model is also available as a Ruggedized (‑XR) variant featuring full hermetic sealing and enhanced vibration performance for the most demanding airborne and shipboard conditions.

Connector Options and Integration

• Supports replaceable or self‑locking replaceable connectors including SMA and ATNC styles in straight, 45°, and 90° configurations.
• All cable and connector manufacturing is done in‑house at Times Microwave Systems to ensure impedance continuity and mechanical integrity through the cable‑to‑contact transition.

Applications

These 50 Ω assemblies deliver consistent low‑VSWR transmission for radar, electronic warfare, SATCOM, avionics, and shipboard systems exposed to vibration, fluids, and temperature extremes. They are well suited for signal integrity maintenance in aircraft, ground‑vehicle, and naval platforms where environmental sealing and RF stability are mission critical.