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Spaceflight Microwave/RF Assemblies

Low-loss coax, lightweight shielding, low-profile connectors and thermomechanical ruggedization operate as one assembly to maintain signal integrity and phase stability through 40 GHz during launch and orbit.

DC–40 GHz>90 dB shieldingSub-picosecond matching direction
PRODUCT FAMILYSpace Cables
Spaceflight microwave RF coaxial assembly construction
SPACE / RF / Representative construction · Final design follows the approved specification

01 / CONFIGURATION DIRECTIONS

Select a configuration from the application boundaries

These configurations establish a practical discussion starting point. The final product requires a controlled specification based on interface, length, installation and validation conditions.

01

Traditional-space assembly

ESCC/NASA verification path for high-reliability missions.

02

NewSpace and launch assembly

Balances schedule, mass and mission environment validation.

03

High-power/high-density assembly

Frequency, diameter, power and connector are combined.

Match a solution direction to the link target

Solution codes support early technical discussions by aligning protocol, construction, link boundaries and application in one view.

SOLUTION CODEPROTOCOL / RATECONSTRUCTIONKEY BOUNDARYBEST FIT
SPACE-RF-01Traditional-space assemblyESCC/NASA verification path for high-reliability missions.DC–40 GHzSpaceborne antennas and payloads
SPACE-RF-02NewSpace and launch assemblyBalances schedule, mass and mission environment validation.>90 dB shieldingBox-to-box and panel RF links
SPACE-RF-03High-power/high-density assemblyFrequency, diameter, power and connector are combined.Sub-picosecond matching directionHigh-power/low-PIM equipment

MODEL NOTEPage values do not constitute mission qualification or approval. Applicable standards, lot screening and verification levels are confirmed per project.

02 / PERFORMANCE PARAMETERS

Product performance parameters

The following values describe current product performance boundaries, with the applicable model, construction or test condition retained.

PERFORMANCE METRICVALUECONFIGURATION / CONDITION
01Maximum frequency40 GHz

Spaceflight RF assembly family

02Frequency families18 · 22 · 29.5 · 32 · 40 GHz

By cable type

03Standard impedance50 ± 1 Ω

Type 8S example

04Velocity / delay85% · 4.0 ns/m

Family typical values

05Shielding effectiveness> 90 dB

Through 18 GHz

06Diameter families2.2–8.1 mm

0.085–0.320 in

07Phase / time-delay matchingThrough 40 GHz

Sub-picosecond tolerances available

Frequency, insertion loss, diameter and connector vary by cable type; phase/time-delay matching is available by project.

Technical referenceValues are confirmed against category, gauge, length and termination

03 / TYPICAL CONSTRUCTION

From functional core to terminated interface

LAYER 01

Space-grade conductor

Material, stranding and plating are selected for resistance, strength, flex and termination.

LAYER 02

Low-outgassing insulation

Dielectric, thermal, vacuum-stability and processing requirements guide material selection.

LAYER 03

Controlled functional unit

Single, twisted, shielded, coaxial or multicore signal geometry is formed.

LAYER 04

Lightweight shield and cover

EMI, atomic oxygen, protection and mass are optimized together.

LAYER 05

Termination and traceability

Connector, branch, strain relief, material lot and process records remain controlled.

04 / SELECTION & VALIDATION

Inputs needed to start a custom assessment

SELECTION ITEMINFORMATION TO CONFIRM
01Mission and orbit

LEO, GEO, deep space, launch phase and mission duration

02Electrical function

Voltage, current, protocol, frequency, impedance and core count

03Mass and space

Mass per meter, diameter, bend radius and route

04Environment

Vacuum, thermal cycle, radiation, ATOX, vibration and shock

05Harness interface

Connector, branch, lacing, ground and installation process

06Verification level

Applicable ESCC/NASA documents, first article, lot and traceability

Typical applications

  • Spaceborne antennas and payloads
  • Box-to-box and panel RF links
  • High-power/low-PIM equipment
  • LEO, GEO and deep-space missions

Interfaces & delivery

  • Single, multicore or shielded space cable
  • Space connector and lightweight harness
  • Fixed-length assembly, branch or pigtail
ENGINEERING NOTE

Page values do not constitute mission qualification or approval. Applicable standards, lot screening and verification levels are confirmed per project.

Ready to define a controlled specification?

Bring us the interface, environment and validation requirements.

Yidong Telecom can build a sample direction and validation matrix around the cable construction, termination and system boundaries.

Submit requirement checklist