Basic Structure of Coaxial Cables:
· Inner Conductor (Innerleiter): Made of solid or stranded copper (Massiv oder Litze, Cu).
· Dielectric (Dielektrikum): Made of PTFE (Polytetrafluoroethylene) or FEP (Fluorinated Ethylene Propylene Copolymer).
· Shielding / Braided Layer (Schirmung / Geflecht): Made of single or multi-stranded tinned copper (Ein- oder zweilagig).
· Outer Jacket (Außenmantel): Made of PVC (Polyvinyl Chloride), PE (Polyethylene), or FEP (Fluorinated Ethylene Propylene Copolymer).
· The following is an example of the boobrieRG58 product structure:
Examples of Different Coaxial Cables:
boobrie RG174:
boobrie RG316:
boobrie bmr400:
Display of Different Parameters:
Available Frequency Range of Different Cables:
Temperature Range of Different Coaxial Cables (depending on jacket material)：
The minimum bending radius of different coaxial cables should be a key focus, especially when there are requirements for phase consistency, amplitude consistency, and amplitude-phase stability. Ignoring this parameter can significantly reduce the performance of components or systems.
The bending radius represents the maximum bending angle the cable can endure without causing potential damage or power loss. Excessive bending will damage the internal structure and directly lead to degraded transmission performance. The bending radius does not directly depend on the cable’s thickness but is influenced by its structure. Key factors include:
· Inner Conductor Structure: Solid, hollow, or twisted wire.
· Shielding Layer Construction: Braided, film, number of shielding layers, and thickness.
· Jacket Material and Thickness.
Definition of Cable Outer Diameter:
· Stripped cable ends & cut cable ends. Inspection of various points on a stripped cable end. Stripping the insulation makes assembly easier for the user. Therefore, the following information is essential:
o Dimensions A, B, C of the stripped insulation part, with tolerance specifications.
o Tinned braided layer or loose cable ends. These processing methods make it easier for users to work with cables without connectors or the appropriate shielding layer. Tinned braided layers prevent fraying or damage during transportation and make installation easier.
o Tinned center conductor. The tinned center conductor helps prevent damage from fraying or compression during transport and facilitates installation.
o Cut cable ends. For cut cable ends, users will need to strip the insulation or install the cable according to specific requirements.
Insertion Loss Caused by Cable Length:
Comparison of attenuation within the frequency range for RG58, RG174, and RG178 cables. If the cable selection is based solely on attenuation specifications, RG58 is the ideal choice due to its lowest attenuation within the relevant frequency range. However, other characteristics should also be considered during selection:
· Outer Diameter: RG58 (4.95 mm) > RG174 (2.7 mm) > RG178 (1.8 mm).
· Bending Radius (Flexibility): RG58 > RG174 > RG178.
· Weight: RG58 > RG174 > RG178.
RG178 may be the ideal choice because it can cover the relevant frequency range (up to 3 GHz). However, its higher attenuation, i.e., higher loss, is due to its smaller outer diameter. Its advantage lies in being lighter in weight and having a cable jacket made from FEP (Fluorinated Ethylene Propylene Copolymer).
Attenuation Calculation Formula:
· αlx: Attenuation at the required cable length.
· α100ft: Attenuation per 100 feet, as per the chart.
· 100: The divisor used to normalize to 1 foot (1 foot = 0.3048 meters).
· lx: Required length in feet.
If you need coaxial cables, you can click the link below to visit the BOOBRIE flagship store:BOOBRIE