Function to synthesize the physical dimenstions of a single
stripline transmission line to achieve a desired characteristic
impedance and electrical length. The desired characteristic
impedance and some of the physical
dimensions of the stripline line are given as inputs and the
remaining dimensions are calculated.
XXXXXXXXXXXXXXXXX ground XXXXXXXXXXXXXXXXXXXXX
----------------------------------------------
( dielectric,er \/ /|\ (
) ------- -- | )
( | metal | Tmet | H (
) ------- -- | )
( <---W---> /\ \|/ (
----------------------------------------------
XXXXXXXXXXXXXXXXX ground XXXXXXXXXXXXXXXXXXXXX
// mils to meters conversion factor
sf=25.4e-6;
// desired impedance
z0=75;
// desired electrical length (degrees)
elen=90;
// width (we'll synthesize this)
w=0;
// height
h=62*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;
// synthesize width
flag=0;
[w_out,h_out,l_out,er_out] = ...
stripline_syn(z0,elen,w,h,l,tmet,rho,rough,er,tand,f,flag);
disp(sprintf('w=%g mils, l=%g mils',w_out/sf,l_out/sf));
disp(sprintf('er=%g',er_out));
disp(sprintf('z0=%g ohms, length=%g degrees',z0,elen));
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
Dan McMahill
None known
Please report any bugs on the Wcalc Sourceforge Project Page