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Coaxial Cables (RF)

Image Part Number Description / PDF Quantity Rfq
9104 BK002

9104 BK002

Alpha Wire

CABLE COAXIAL RG6 18AWG 500'

0
9055B BK001

9055B BK001

Alpha Wire

CABLE COAXIAL RG55B 20AWG 1000'

0
M4251 BR002

M4251 BR002

Alpha Wire

CABLE COAXIAL RG142B 19AWG 500'

1
9059 BK002

9059 BK002

Alpha Wire

CABLE COAXIAL RG59 22AWG 500'

0
9817 BK002

9817 BK002

Alpha Wire

CABLE TWINAXIAL 20AWG 500'

21
M4158 BK002

M4158 BK002

Alpha Wire

CABLE 2COND 16AWG BLK SHLD 500'

0
9848 BK001

9848 BK001

Alpha Wire

CABLE COAXIAL RG58 18AWG 1000'

2
9011A BK001

9011A BK001

Alpha Wire

CABLE COAXIAL RG11A 18AWG 1000'

0
M4220 BK005

M4220 BK005

Alpha Wire

CABLE TWINAXIAL RG108 20AWG 100'

8
9059 BK001

9059 BK001

Alpha Wire

CABLE COAXIAL RG59 22AWG 1000'

1
M4276 BK005

M4276 BK005

Alpha Wire

CABLE COAXIAL RG62A 22AWG 100'

1
9849 GR005

9849 GR005

Alpha Wire

ALPHA ESSENTIALS COAXIAL CABLE 2

10
9851 SL005

9851 SL005

Alpha Wire

ALPHA ESSENTIALS COAXIAL CABLE 3

15
M4220 BK001

M4220 BK001

Alpha Wire

CABLE TWINAXIAL RG108 1000'

0
9062AC RD001

9062AC RD001

Alpha Wire

CABLE COAXIAL RG62A 22AWG 1000'

0
M4220 BK002

M4220 BK002

Alpha Wire

CABLE TWINAXIAL RG108 20AWG 500'

1
9159 BK001

9159 BK001

Alpha Wire

CABLE COAXIAL RG59B 23AWG 1000'

0
9055B BK005

9055B BK005

Alpha Wire

CABLE COAXIAL RG55B 20AWG 100'

5
M4271 BK001

M4271 BK001

Alpha Wire

CABLE 2COND 20AWG BLK SHLD 1000'

0
9102 BK002

9102 BK002

Alpha Wire

CABLE COAXIAL RG59 20AWG 500'

2

Coaxial Cables (RF)

1. Overview

RF coaxial cables are cylindrical transmission lines composed of concentric conductors separated by dielectric materials. They enable efficient high-frequency signal transmission (typically above 100 kHz) with excellent noise immunity. These cables serve as critical infrastructure in telecommunications, broadcasting, aerospace, and test measurement systems where signal integrity is paramount.

2. Major Types and Functional Classification

TypeFunctional FeaturesApplication Examples
Rigid Coaxial CableMetallic outer conductor, fixed geometryFixed installations in broadcast transmitters
Semi-Rigid CableFormable but not bendable after installationMicrowave ovens, aerospace systems
Flexible Coaxial CableMulti-stranded conductors for bendingTest equipment, mobile communications
Low-Loss Foam DielectricPTFE foam dielectric reduces signal loss5G base stations, satellite links
Triaxial CableDouble shielding for EMI protectionMedical imaging equipment

3. Structure and Composition

Typical construction includes four layers:

  1. Central Conductor: Solid or stranded copper/aluminum for signal transmission
  2. Dielectric Insulator: PTFE, polyethylene, or foam materials maintaining uniform impedance
  3. Shielding Layer: Braided copper/aluminum with foil wrap (85-100% coverage)
  4. Outer Jacket: UV-resistant PVC or plenum-rated materials for environmental protection

4. Key Technical Parameters

ParameterTypical RangeSignificance
Characteristic Impedance50 , 75 standardsMatches system impedance to prevent reflections
Attenuation0.1-10 dB/100ft @1GHzDetermines maximum transmission distance
Frequency RangeDC to 40 GHz (typical)Defines usable bandwidth
VSWR1.1:1 to 2.0:1Measures impedance matching quality
Power Handling500W to 5kW peakLimits maximum operational power

5. Application Fields

  • Telecommunications: 5G infrastructure, fiber-wireless integration
  • Broadcasting: TV/radio transmission lines
  • Military/Aerospace: Radar systems, avionics
  • Test & Measurement: Oscilloscope probes, signal analyzers
  • Industrial IoT: Sensor network backbones

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Features
CommScopeFSJ1-50ALow-loss foam dielectric, 0-18GHz
AmphenolRG-58UGeneral-purpose 50 cable
Times MicrowaveLMR-400Weather-resistant, 0-6GHz
Huber+SuhnerRFS1000Heliax rigid line for base stations
HuaweiRF-355G massive MIMO solution

7. Selection Guidelines

Key considerations:

  • Frequency Requirements: Match cable's usable range with system operating frequency
  • Environmental Conditions: Outdoor cables require UV protection and temperature resistance (-40 C to +85 C)
  • Bending Radius: Minimum bend radius specification (typically 10 cable diameter)
  • Connectivity: Ensure compatibility with connectors (N-type, SMA, BNC)
  • Cost vs Performance: Balance loss characteristics against budget constraints

8. Industry Trends

Current development directions include:

  • High-Frequency Optimization: Supporting 6G terahertz band exploration
  • Nanodielectric Materials: Graphene-enhanced insulation for lower loss
  • Miniaturization: 0.8mm outer diameter cables for wearable devices
  • Smart Cables: Integrated sensors for real-time condition monitoring
  • Environmental Compliance: Halogen-free flame retardant (HFFR) jacket materials
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