Overview

Improve Signal Transmission for Spacecraft Electronics

Signal speed and integrity are essential for effective communication among spacecraft components. Cables — the lifeline of data transmission — are often run through very tight spaces in the spacecraft. For cables to reliably maintain signal integrity, they need to be flexible, and they need to be tough.

GORE Symmetrical Interconnects offer the best combination available for spacecraft component connections: solid mechanical durability, and excellent signal integrity. Small, lightweight and extremely flexible, these balanced, single-twinax cables deliver data transmission rates as high as 1 Gbit/s to maintain outstanding signal integrity.

The cables meet the stringent requirements of ESCC-3902/002, and are listed on the ESA QPL (Qualified Parts List) — providing the quality assurance critical to mission success in outer space.

The Science Behind the Cables
ePTFE in our cables helps to reduce interference between electrical systems.

ePTFE in our cables helps to reduce interference between electrical systems.

The key to the outstanding performance of Gore symmetrical interconnects is the proprietary material used in the cable insulation: expanded polytetrafluoroethylene (ePTFE).

By incorporating ePTFE into the cables, Gore is able to provide tight impedance control to reduce interference, with balanced transmission between separate lines within the cable. The microstructure of the ePTFE material makes Gore symmetrical interconnects lighter than other cables with comparable performance and minimizes the problems associated with balancing difficult mass budgets.

Features & Benefits

GORE Symmetrical Interconnects dependably feature:

  • high signal speed up to 1 Gbit/s
  • high density/reduced mass
  • balanced, shielded lines
  • high-speed link among units

By pairing these features with the material benefits of PTFE, our cables deliver:

  • excellent compatibility among system components
  • reduced costs for system integration and maintenance
  • design flexibility of a modular system
  • improved reliability from rugged materials used in construction
  • valued reliability delivered from an ESA-qualified and a DIN EN ISO 9001:2000-certified manufacturing facility

Additionally, Gore’s worldwide engineering team provides sales and technical support. If you have any questions about GORE® Symmetrical Interconnects, please contact us.

Applications

Aboard spacecrafts, GORE Symmetrical Interconnects are typically used in:

  • digital signal processors
  • high-resolution cameras and sensors
  • high-speed subsystem interconnects

To date, many critical missions have incorporated our symmetrical interconnects, including:

  • European Remote Sensing Satellite (ERS1/ERS2)
  • Polar Platform
  • ENVISAT satellite
  • XMM space observatory
  • International Space Station (ISS)
  • INMARSAT

Specifications

All Gore symmetrical interconnects meet these technical specifications according to ESCC 3902/002 and are listed on the ESA QPL.

Property Value
Operating temperature range -200°C to +180°C
Maximum temperature for short periods 260°C
Dielectric material Expanded PTFE
Outer jacket PFA
Conductor construction Concentric silver-plated copper
Operating voltage 100 V RMS
Maximum weight 36 g/m
Maximum diameter 5.2 mm
Bending radius 10 x outer diameter (repeated) or 6 x outer diameter (once)
Transmission Rate Up to 1 Gbit/s
Maximum capacitance: conductor to conductor 68 pF/m

 

Ordering Information

GORE Symmetrical Interconnects vary by gauge size and impedance. Refer to your application to determine the appropriate part number, and please contact us with any questions.

Part Number  Gauge Size (AWG) Impedance (ohm) 
GBL-075-24  24 75
GBL-100-22  22 100 (with drain wire) 
GBL-120-30  30 120
GBL-120-28  28 120
GBL-120-26  26 120
GBL-120-24  24 120

 

Resources

Learn more about GORE Symmetrical Interconnects in a data sheet and a white paper discussing the properties of cables that ensure peak electrical performance.

Recent News

Event

Gore Exhibiting at 2021 Global Defense Helicopter

November 2, 2021 - November 4, 2021

Visit our booth during Europe’s largest military helicopter event to see our extensive portfolio of proven solutions that the military has relied on and trusted for decades. On Thursday, November 4th, don’t miss the presentation from our experts about Gore’s aerospace interconnection solutions and materials for existing and next-gen rotorcraft.

Press Release

W. L. Gore & Associates Data Cables Earn German VG Military Qualification

Posted September 14, 2021

Gore announced today several of its next-generation data cable products for aerospace and defense applications have earned an important qualification. The prestigious VG designation from the Bundeswehr, Germany’s unified armed forces as well as related civilian administrative and procurement organizations, is expected to facilitate further adoption of these cables for military use.

Press Release

W. L. Gore & Associates Offers Ultra-low-loss 12G-SDI Coaxial Video Cable for Defense Applications

Posted September 10, 2021

Gore announced the expansion of its Coaxial Cables line for defense land system applications. The new product is smaller and lighter than previous offerings, yet capable of transmitting ultra-high-definition (UHD) 4K video with excellent shielding from radio frequency interference.

Event

W. L. Gore & Associates Exhibiting Virtually at IMS2021

June 20, 2021 - June 25, 2021

Gore is exhibiting virtually at this year’s International Microwave Symposium (IMS), and you’re invited to visit our virtual booth. We’ll describe how our proven portfolio of durable microwave/RF test assemblies delivers stable and consistent performance for reliable 5G test results.

View all News & Events

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