RF AND MICROWAVE HARNESSES

Many airframe and test applications employ harnesses to combine multiple signal paths into a single routable assembly. Micro-Coax harnesses using phase and amplitude stable UTiFLEX® cable as a base are an ideal choice especially to support extremely tight system phase requirements.

Available for nearly any UTiFLEX cable size from 0.092” to 0.311” in diameter, Micro-Coax harnesses offer extremely low insertion loss and when built with Micro-Coax designed harness contacts, excellent return loss and RF isolation. In addition, Micro-Coax produces the Module-port Housing system, one of the industry’s densest packages accommodating 50% more contacts/cables than the equivalent M38999 shell.

Harnesses are almost always designed to custom specifications. Primary features and design considerations follow, but Micro-Coax recommends contacting our applications engineering team for more details and to optimize a solution to your harnessing needs.

  • Consider combining DC and RF into a single harness.
  • Where possible, refrain from designing in third party contacts with proprietary interfaces. This locks the design into one vendor potentially reducing performance and affordability
  • Consider encasing harnesses in weather resistant heatshrink or abrasion resistant braiding.
  • Try to design harnesses for the maximum number of signal paths possible. Micro-Coax designs, produces and installs 50 ohm terminations in unused paths.
  • For optimum insertion loss and densest packaging consider Micro-Coax RF splices in the design. These reduce the cable diameter to promote installation into housings/shells.
  • Try to limit the number of fasteners on a housing/shell to one or two maximum whenever possible for ease of installation.
  • Employ strain-relief and/or angled back-shells if harnesses will be formed near the housing/shell. This minimizes angular stress on individual contacts insuring proper mating.