Mex-Wcalc: stripline_calc
Description: Wcalc: A transmission line calculator
Keywords: coupled microstrip, coupled microstrip analysis, coupled microstrip synthesis, microstrip, microstrip analysis, microstrip synthesis, stripline, stripline analysis, stripline synthesis,

| Mex-Wcalc: stripline_calc stripline_calc - Symmetric stripline transmission line analysis ## SYNOPSIS [z0, elen, loss, L, R, C, G, lc, ld, deltal, depth] = stripline_calc(w, h, l, tmet, rho, rough, er, tand, f) ## PARAMETERS ### INPUT PARAMETERS w : width of stripline line (meters) h : substrate thickness (meters) l : lentgh of stripline line (meters) tmet : metal thickness (meters) rho : resistivity of the line (relative to copper) rough : conductor surface roughness (meters-rms) er : substrate relative permitivitty tand : substrate loss tangent f : analysis frequency (Hz) ### OUTPUT VALUES z0 : calculated characteristic impedance (Ohms) elen : calculated electrical length of the line (degrees) loss : calculated loss of the line (dB) 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) deltal : calculated open circuit end correction (meters) depth : calculated skin depth (meters) ## DESCRIPTION Function to analyze the electrical characteristics of a single stripline transmission line. The physical dimensions of the stripline line are given as inputs and the characteristic impedance, effective dielectric constant, loss and open circuit end correction are calculated. ``
        XXXXXXXXXXXXXXXXX ground XXXXXXXXXXXXXXXXXXXXX
        ----------------------------------------------
       (  dielectric,er         \/           /|\     (
        )             -------   --            |       )
       (             | metal | Tmet           | H    (
        )             -------   --            |       )
       (             <---W--->  /\           \|/     (
        ----------------------------------------------
        XXXXXXXXXXXXXXXXX ground XXXXXXXXXXXXXXXXXXXXX
## EXAMPLE
     % mils to meters conversion factor
    sf=25.4e-6
     % width
    w=20*sf
     % height
    h=15*sf
     % length
    l=1100*sf
     % metal thickness
    tmet=1.4*sf
     % resitivity
    rho=1.72e-8
     % metal surface roughness
    rough=0.05*sf
     % relative dielectric constant
    er=4.5
     % loss tangent
    tand=0.01
     % frequency
    f=2.4e9
    [z0,elen,loss,L,R,C,G,lc,ld,deltal,depth] = ...
      stripline_calc(w,h,l,tmet,rho,rough,er,tand,f)
    disp(sprintf('z0   = %8.4g Ohms',z0))
    disp(sprintf('elen = %8.4g degrees',elen))
    disp(sprintf('loss = %8.4g dB',loss))
    disp(sprintf('L    = %8.4g H/m',L))
    disp(sprintf('R    = %8.4g Ohms/m',R))
    disp(sprintf('C    = %8.4g F/m',C))
    disp(sprintf('G    = %8.4g S/m',G))
    disp(sprintf('lc   = %8.4g dB/m',lc))
    disp(sprintf('ld   = %8.4g dB/m',ld))
    disp(sprintf('open end correction = %8.4g mil', deltal/sf))
    disp(sprintf('skin depth = %8.4g um', depth*1e6))
## SEE ALSO air_coil_calc air_coil_syn coax_calc coax_syn coupled_microstrip_calc coupled_microstrip_syn ic_microstrip_calc ic_microstrip_syn microstrip_calc microstrip_syn stripline_calc stripline_syn ## AUTHOR Dan McMahill ## BUGS None known Return to the MEX-Wcalc page.
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Air Core Solenoid Inductor Coaxial Transmission Line Coupled Microstrip Integrated Circuit Microstrip Microstrip Stripline
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