Product Overview

Low Loss Cable Assemblies

Low Loss Cable Assemblies are high-performance coaxial interconnects specifically engineered to minimize signal attenuation (power loss) across their operating frequency range. Unlike standard coaxial assemblies, they employ advanced designs, superior dielectric materials (such as expanded PTFE or proprietary technologies like Aptiv's DynaCore®), and optimized shielding constructions to ensure that maximum signal power is delivered from source to destination. These pre-fabricated, fully tested assemblies are essential for applications where signal degradation cannot be tolerated, ensuring optimal system performance, improved signal-to-noise ratio, and greater transmission distances. Aptiv with our DynaFlex®, DynaTest®, and PhaseTite® series are leaders in providing these critical solutions for demanding markets such as aerospace & defense, test & measurement, telecommunications (including 5G), and high-frequency instrumentation.

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Features and Benefits

  • Minimized Signal Attenuation (Low Loss): Significantly reduces signal power loss, especially at higher frequencies, leading to stronger signals and better efficiency.
  • Low VSWR: Excellent impedance matching, minimizing reflections and maximizing power transfer.
  • High Frequency Capability: Supports broad frequency ranges from DC up to 110 GHz for next-gen RF and microwave applications.
  • Superior Shielding Effectiveness: Multi-layered shielding protects against EMI/RFI, ensuring clean signal transmission.
  • Phase Stability (Enhanced): Excellent phase stability over temperature and flexure, crucial for precision measurement and phased array systems.
  • Ready-to-Install & Factory-Tested: Complete, custom-length assemblies, 100% RF tested for guaranteed performance.
  • Increased System Reliability: Precision manufacturing, high-quality materials, and rigorous testing for reliable interconnects.
  • Design Flexibility: Various cable types, diameters, and high-performance connectors available.
  • Ruggedized Options: Robust strain relief and durable jacketing to withstand harsh environments.

Specifications, Parts, and Filters

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Impedance
50 Ohms (standard).
Frequency Range
DC to 18 GHz, 26.5 GHz, 40 GHz, or 110 GHz.
Insertion Loss
Lower than standard coaxial assemblies; achieved via larger conductors, superior dielectrics (e.g., expanded PTFE, DynaCore®), and advanced shielding.
VSWR (Assembly)
Excellent across operating bandwidth; frequency dependent.
Velocity of Propagation (VP)
High (76-84%) due to low-dielectric materials (e.g., DynaCore® PTFE).
Shielding Effectiveness
Very high (>100 dB), preventing signal radiation and external interference.
Power Handling
Higher than standard cables of similar size due to efficient heat dissipation.
Phase Stability
For phase-stable versions, low ppm/°C over temperature (e.g., ± 50 ppm/°C) and minimal phase change with flexure (e.g., ± 2° at 18 GHz for 360° bend).

Cable Construction
Optimized conductors, advanced dielectrics (e.g., expanded/foamed PTFE, low-density PTFE, DynaCore®), and multi-layered shielding.
Outer Diameter (OD)
Range of sizes (e.g., ~0.086" to ~0.400" for flexible types).
Connectors
High-performance RF connectors (e.g., SMA, 2.92mm, N) attached via crimp, solder, or clamp; often stainless steel.
Length Tolerance
Precise custom lengths with tight tolerances (e.g., ± 0.060").
Minimum Bend Radius
Specified for flexible options (e.g., 0.5" to 1.5").
Flex Life
High flex cycles for flexible types (e.g., >500,000 cycles).
Jacket Options
Various materials (e.g., FEP, ETFE, PUR) for protection; some offer ruggedized sleeves.

Temperature Range
Wide operating range (e.g., -40°C or -65°C up to +85°C, +125°C, or +165°C).
Thermal Shock
Resistant to rapid temperature changes.
Vibration & Shock
Withstands significant levels (e.g., MIL-STD-202 compliant).
Moisture Resistance
Robust jackets and sealed connectors; some offer IP-rated water immersion.
UV Resistance
Outer jackets often UV-stabilized for outdoor use.
Chemical Resistance
Jacket materials resistant to oils, fuels, solvents.
Space Qualification
Specific assemblies meet low outgassing and radiation tolerance requirements.

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