Coaxial Cables (RF)

Part Number	Description / PDF	Quantity
1808A B591000 Belden	2 #30 FHDPE SRV PVC 1=1000'	0
1370P 0081000 Belden	COAX RG59 20AWG 75OHM	0
1694WB 0101000 Belden	#18 PO/GIFHDPE SH PO	17000
1617A 0101000 Belden	COAX 75 OHM RG11 14AWG	0
9118X 009U1000 Belden	COAX 75 OHM RG6 18AWG	0
1505A 0035000 Belden	#20 PE/GIFHDPE SH FR PVC	0
8233P 010500 Belden	#14 FFEP BRD SLF BRD SLF	0
1837A 0101000 Belden	COAX 75 OHM RG6 18AWG	0
5339B5 009U500 Belden	RG-6/U COAX	0
1506A 010500 Belden	#20 FFEP SH FLMRST	0
1858A 0041000 Belden	#15 GIFHDLDPE PVC TRIAX	0
1394P 008500 Belden	4X #25 RGB COAX CMP OA JKT	0
82240 8771000 Belden	#20 FEP RG-58/U FLMRST	3000
1672J 368500 Belden	#29 TFE BRD TINNED COAX PVC	0
643948 0101000 Belden	COAX RG-59 PLENUM COAX	0
633938 009U1000 Belden	COAX RG-6/U PLENUM COAX	0
3131A F2V1000 Belden	COAX 18AWG QUAD SHLD 75 OHM	0
9778 0101000 Belden	1 #20 EPDM SH CPE	0
DA7732A 8774000 Belden	#14 FFEP SH PVDF	0
9167 0121000 Belden	#20 GIFHDLDPE SH FS PVC	0

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

Type	Functional Features	Application Examples
Rigid Coaxial Cable	Metallic outer conductor, fixed geometry	Fixed installations in broadcast transmitters
Semi-Rigid Cable	Formable but not bendable after installation	Microwave ovens, aerospace systems
Flexible Coaxial Cable	Multi-stranded conductors for bending	Test equipment, mobile communications
Low-Loss Foam Dielectric	PTFE foam dielectric reduces signal loss	5G base stations, satellite links
Triaxial Cable	Double shielding for EMI protection	Medical imaging equipment

3. Structure and Composition

Typical construction includes four layers:

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

4. Key Technical Parameters

Parameter	Typical Range	Significance
Characteristic Impedance	50 , 75 standards	Matches system impedance to prevent reflections
Attenuation	0.1-10 dB/100ft @1GHz	Determines maximum transmission distance
Frequency Range	DC to 40 GHz (typical)	Defines usable bandwidth
VSWR	1.1:1 to 2.0:1	Measures impedance matching quality
Power Handling	500W to 5kW peak	Limits 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

Manufacturer	Representative Product	Key Features
CommScope	FSJ1-50A	Low-loss foam dielectric, 0-18GHz
Amphenol	RG-58U	General-purpose 50 cable
Times Microwave	LMR-400	Weather-resistant, 0-6GHz
Huber+Suhner	RFS1000	Heliax rigid line for base stations
Huawei	RF-35	5G 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