GENERAL DESIGN CRITERIA: DIELECTRICS
GENERAL DESIGN CRITERIA: DIELECTRICS
The most common dielectrics are Polyethylene (PE) and Polytetraflouroethylene (PTFE or Teflon). PTFE and polyethylene is available in solid and low-density forms: foamed, splined, and perforated or expanded tape wrap (micro-porous). Low-density dielectrics are used for low loss and/or phase stable applications. If the application is for a specific time delay, low loss cables may not be advantageous since the velocity of propagation is higher, requiring additional length for a given delay time. (Table 2)
Table 2

Cable Assembly Guide Introduction
Cable Types and Specifications
Connector Types and Specifications
GENERAL DESIGN CRITERIA:
- Attenuation (Insertion Loss)
- Average Power Handling
- Capacitance
- Characteristic Impedance
- Cost and Quality Considerations
- Cut-Off Frequency
- Delay Time
- Dielectrics
- Electrical Length (Phase Stability)
- Intermodulation Distortion
- Maximum Operating Voltage (Peak Power)
- Mechanical & Environmental
- Operating Frequency
- Phase Matching
- Phase Tracking
- Temperature Limitations
- Velocity of Propagation
- VSWR/Return Loss