|  | Octave-Wcalc: ic_microstrip_calc 
 ic_microstrip_calc - Integrated circuit microstrip transmission line analysis
 SYNOPSIS[z0, keff, elen, loss, L, R, C, G] = 
ic_microstrip_calc(w, l, tox, h, er, sigmas, tmet, rho, rough, f)PARAMETERSINPUT PARAMETERS
w
: width of ic_microstrip line (meters)l
: lentgh of ic_microstrip line (meters)tox
: oxide thickness (meters)h
: substrate thickness (meters)er
: substrate relative permitivitysigmas
: substrate conductivity (1/ohm-m)tmet
: metal thickness (meters)rho
: resistivity of wire (relative to copper)rough
: conductor surface roughness (meters-rms)f
: synthesis frequency (Hz) OUTPUT VALUES
z0
: calculated characteristic impedance (Ohms)keff
: calculated effective relative permitivittyelen
: 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) DESCRIPTION
Function to analyze the electrical characteristics of a single 
integrated circuit microstrip transmission line. The physical
dimensions of the microstrip line are given as inputs and the
characteristic impedance, effective dielectric constant, loss and
open circuit end correction are calculated.
                 |<--W-->|
                  _______    
                 | metal | <- tmet,rho,rough
    ----------------------------------------------
   {**************  Oxide (tox,eox) **************
    ----------------------------------------------
   (  substrate                          /|\     (
    )   es,sigmas                     H   |       )
   (                                     \|/     (
    ----------------------------------------------
    XXXXXXXXXXXXXXXXXX ground XXXXXXXXXXXXXXXXXXXX
 EXAMPLE % width
w=150e-6;
 % substrate height
h=250e-6;
 % length
l=1000e-6;
 % substrate permitivitty
es=11.8;
 % substrate conductivity
sigmas=0.5;
 % oxide thickness
tox=1.5e-6;
 % oxide permitivitty
eox=4;
 % metal thickenss
tmet=0.8e-6;
 % metal resitivity
rho=3.0e-8;
 % metal surface roughness
rough=0.0;
 % frequency
f=2.4e9;
[z0,keff,elen,loss,L,R,C,G] = ...
  ic_microstrip_calc(w,l,tox,eox,h,es,sigmas,tmet,rho,rough,f);
disp(sprintf('z0 = %8.4g + j %8.4g Ohms', real(z0), imag(z0) ));
disp(sprintf('keff = %8.4g ',keff));
disp(sprintf('elen = %8.4g degrees',elen));
disp(sprintf('loss = %8.4g dB',loss));
disp(sprintf('L  = %8.4g nH/mm', L*1e6));
disp(sprintf('R  = %8.4g Ohm/mm', R*1e-3));
disp(sprintf('C  = %8.4g fF/mm', C*1e12));
disp(sprintf('G  = %8.4g uMho/mm', G*1e3));
SEE ALSOair_coil_calcair_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 Octave-Wcalc page. |