Coaxial Cables (RF)

Part Number	Description / PDF	Quantity
1369P 007500 Belden	COAX RG6 18AWG 75OHM	0
9463F J221000 Belden	TWINAX 20AWG SHLD BLUE HOSE	0
1395P 0101000 Belden	5X #25 RGB COAX CMP OA JKT	0
8240 010100 Belden	#20 PE BRD FRPVC	100
1396P 0081000 Belden	6X #25 RGB COAX CMP OA JKT	0
DA1695A 8775000 Belden	#18 FFEP SH PVC	0
4694P N3U1000 Belden	#18 FFEP SH FLRST MIL GREEN	0
1694S6 0001000 Belden	BONDED FILLER COMPOSITE	0
7807A 0101000 Belden	RF200 WIRELESS 50 OHM COAX PO	0
1370R 0011000 Belden	COAX RG59 20AWG 75OHM	0
8241 010U1000 Belden	RG59/U TYPE COAX BLK	0
1673A TIN50 Belden	#19 TFE BRD TINNED COAX	200
1505A 002500 Belden	#20 PE/GIFHDPE SH FR PVC	0
1369P 0091000 Belden	COAX RG6 18AWG 75OHM	0
734AS3P 0081000 Belden	BONDED FILLER COMPOSITE	0
1858A 002500 Belden	#15 GIFHDLDPE PVC TRIAX	0
82241 877U500 Belden	#23 FEP RG59/U FLMRST	0
734A1P 0081000 Belden	#20 FFEP SH FLRST	0
9167 2901000 Belden	#20 GIFHDLDPE SH FS PVC	0
3092A 01010000 Belden	COAX 18AWG 100 OHM	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