Stdio-Wcalc: coax_calc

coax_calc - Coaxial transmission line analysis

SYNOPSIS

coax_calc a b c t rho_a rho_b er tand len f

PARAMETERS

INPUT PARAMETERS

  • a : radius of inner conductor (meters)
  • b : inner radius of outer conductor (meters)
  • c : offset of the inner conductor from the center (meters)
  • t : thickness of shield (meters)
  • rho_a : resistivity of inner conductor (ohms/meter)
  • rho_b : resistivity of outer conductor (ohms/meter)
  • er : relative permitivitty of dielectric
  • tand : loss tangent of dielectric
  • len : physical length of line (meters)
  • f : analysis frequency (Hertz)

OUTPUT VALUES

  • L : calculated inductance per length (Henries/meter)
  • R : calculated resistance per length (Ohms/meter)
  • C : calculated capacitance per length (Farads/meter)
  • G : calculated conductance per length (Siemens/meter)
  • lc : conductor loss (dB/meter)
  • ld : dielectric loss (dB/meter)
  • fc : TE10 cutoff frequency (Hz)
  • em : Max Electric Field (Volts/meter)

DESCRIPTION

Function to analyze the electrical characteristics of a coaxial transmission line. The physical dimensions of the line are given as inputs and the characteristic impedance and incremental circuit model elements are calculated.

EXAMPLE

* 50.000 ohms
coax_calc 1.520e-3 3.5e-3 0.0e-4 1.0e-3 3.5e-8 3.5e-8 1.00022 0.0 1.0 1.0e9
*
  

SEE ALSO

air_coil_calc
air_coil_syn
coax_calc
coax_syn
coplanar_calc
coplanar_syn
coupled_microstrip_calc
coupled_microstrip_syn
coupled_stripline_calc
coupled_stripline_syn
ic_microstrip_calc
ic_microstrip_syn
microstrip_calc
microstrip_syn
stripline_calc
stripline_syn

AUTHOR

Dan McMahill

BUGS

None known

Please report any bugs on the Wcalc Sourceforge Project Page

Return to the Stdio-Wcalc page.

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Models
 Air Core Solenoid Inductor
 Parallel Rectangular Bars Inductance
 Coaxial Transmission Line
 Coplanar Waveguide
 Coupled Microstrip
 Coupled Stripline
 Integrated Circuit Microstrip
 Microstrip
 Series/Parallel RC Network
 Series/Parallel RL Network
 Stripline

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Misc. Info.
 Permeabilities
 Permitivities
 Resistivities
 Unit Conversion Factors
 Wire Sizes

   
Copyright © 2001, 2002, 2004, 2005, 2006 Dan McMahill ALL RIGHTS RESERVED.