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- Primary_line_constants abstract "The primary line constants are parameters that describe the characteristics of conductive transmission lines, such as pairs of copper wires, in terms of the physical electrical properties of the line. The primary line constants are only relevant to such lines and are to be contrasted with the secondary line constants, which can be derived from them, and are more generally applicable. The secondary line constants can be used, for instance, to compare the characteristics of a waveguide to a copper line, whereas the primary constants have no meaning for a waveguide.The constants are conductor resistance and inductance, and insulator capacitance and conductance, which are by convention given the symbols R, L, C, and G respectively. The constants are enumerated in terms of per unit length. The circuit representation of these elements requires a distributed element model and consequently calculus must be used to analyse the circuit. The secondary constants of characteristic impedance and propagation constant can be derived in this way.A number of special cases have particularly simple solutions and important practical applications. Low loss cable requires only L and C to be included in the analysis, useful for short lengths of cable. Low frequency applications, such as twisted pair telephone lines, are dominated by R and C only. High frequency applications, such as RF co-axial cable, are dominated by L and C. Lines loaded to prevent distortion need all four elements in the analysis, but have a simple, elegant solution.".
- Primary_line_constants thumbnail Telephone_cable.jpg?width=300.
- Primary_line_constants wikiPageID "24003596".
- Primary_line_constants wikiPageLength "19750".
- Primary_line_constants wikiPageOutDegree "64".
- Primary_line_constants wikiPageRevisionID "698339360".
- Primary_line_constants wikiPageWikiLink Admittance.
- Primary_line_constants wikiPageWikiLink Audio_frequency.
- Primary_line_constants wikiPageWikiLink Calculus.
- Primary_line_constants wikiPageWikiLink Capacitance.
- Primary_line_constants wikiPageWikiLink Category:Cables.
- Primary_line_constants wikiPageWikiLink Category:Distributed_element_circuits.
- Primary_line_constants wikiPageWikiLink Category:Electronic_design.
- Primary_line_constants wikiPageWikiLink Category:Telecommunications_engineering.
- Primary_line_constants wikiPageWikiLink Characteristic_impedance.
- Primary_line_constants wikiPageWikiLink Coaxial.
- Primary_line_constants wikiPageWikiLink Coaxial_cable.
- Primary_line_constants wikiPageWikiLink Complex_analysis.
- Primary_line_constants wikiPageWikiLink Copper.
- Primary_line_constants wikiPageWikiLink Data_transmission.
- Primary_line_constants wikiPageWikiLink Dielectric.
- Primary_line_constants wikiPageWikiLink Dielectric_loss.
- Primary_line_constants wikiPageWikiLink Dispersion_relation.
- Primary_line_constants wikiPageWikiLink Distributed_element_model.
- Primary_line_constants wikiPageWikiLink Electrical_impedance.
- Primary_line_constants wikiPageWikiLink Electrical_resistance_and_conductance.
- Primary_line_constants wikiPageWikiLink Farad.
- Primary_line_constants wikiPageWikiLink File:Calculation_of_transmission_line_propagation_constant.svg.
- Primary_line_constants wikiPageWikiLink File:Line_equivalent_circuit_for_Zo.svg.
- Primary_line_constants wikiPageWikiLink File:Line_model_Heaviside.svg.
- Primary_line_constants wikiPageWikiLink File:Line_model_general_impedances.svg.
- Primary_line_constants wikiPageWikiLink Heaviside_condition.
- Primary_line_constants wikiPageWikiLink Henry_(unit).
- Primary_line_constants wikiPageWikiLink Inductance.
- Primary_line_constants wikiPageWikiLink Infinitesimal.
- Primary_line_constants wikiPageWikiLink Loading_coil.
- Primary_line_constants wikiPageWikiLink Lumped_element_model.
- Primary_line_constants wikiPageWikiLink Mesh_analysis.
- Primary_line_constants wikiPageWikiLink Metre.
- Primary_line_constants wikiPageWikiLink Network_analysis_(electrical_circuits).
- Primary_line_constants wikiPageWikiLink Nominal_impedance.
- Primary_line_constants wikiPageWikiLink Ohm.
- Primary_line_constants wikiPageWikiLink Propagation_constant.
- Primary_line_constants wikiPageWikiLink Radio_frequency.
- Primary_line_constants wikiPageWikiLink Reflections_of_signals_on_conducting_lines.
- Primary_line_constants wikiPageWikiLink Siemens_(unit).
- Primary_line_constants wikiPageWikiLink Skin_effect.
- Primary_line_constants wikiPageWikiLink Stub_(electronics).
- Primary_line_constants wikiPageWikiLink Telephony.
- Primary_line_constants wikiPageWikiLink Trunking.
- Primary_line_constants wikiPageWikiLink Twisted_pair.
- Primary_line_constants wikiPageWikiLink Ultra_high_frequency.
- Primary_line_constants wikiPageWikiLink Video.
- Primary_line_constants wikiPageWikiLink Voltage_divider.
- Primary_line_constants wikiPageWikiLink Waveguide.
- Primary_line_constants wikiPageWikiLink File:Telephone_cable.jpg.
- Primary_line_constants wikiPageWikiLinkText "Primary line constants".
- Primary_line_constants wikiPageWikiLinkText "primary line constants".
- Primary_line_constants wikiPageUsesTemplate Template:Good_article.
- Primary_line_constants wikiPageUsesTemplate Template:Math.
- Primary_line_constants wikiPageUsesTemplate Template:Reflist.
- Primary_line_constants wikiPageUsesTemplate Template:Use_dmy_dates.
- Primary_line_constants subject Category:Cables.
- Primary_line_constants subject Category:Distributed_element_circuits.
- Primary_line_constants subject Category:Electronic_design.
- Primary_line_constants subject Category:Telecommunications_engineering.
- Primary_line_constants hypernym Parameters.
- Primary_line_constants type Circuit.
- Primary_line_constants type Discipline.
- Primary_line_constants comment "The primary line constants are parameters that describe the characteristics of conductive transmission lines, such as pairs of copper wires, in terms of the physical electrical properties of the line. The primary line constants are only relevant to such lines and are to be contrasted with the secondary line constants, which can be derived from them, and are more generally applicable.".
- Primary_line_constants label "Primary line constants".
- Primary_line_constants sameAs Q7243148.
- Primary_line_constants sameAs m.07kgn8b.
- Primary_line_constants sameAs Q7243148.
- Primary_line_constants wasDerivedFrom Primary_line_constants?oldid=698339360.
- Primary_line_constants depiction Telephone_cable.jpg.
- Primary_line_constants isPrimaryTopicOf Primary_line_constants.