Function to analyze the electrical characteristics of a single layer, uniformly spaced, air core, solenoid inductor. The physical dimensions of the coil are given as inputs and the inductance, quality factor, and self resonant frequency are calculated.
// number of turns N=5; // we'll use the fill parameter instead len=0; // the coil is 20% longer than the minimum fill=1.2; // wire size AWG=22; // resistivity of copper (ohm-m) rho=1.72e-8; // 0.25 inches inside diameter dia=0.25*0.0254; // 10 MHz operation f=10e6; // use fill to calculate length flag=1; [L,Q,SRF,len_out,fill_out,Lmax] = air_coil_calc(N,len,fill,AWG,rho,dia,f,flag); disp(sprintf('L=%g nH',L*1e9)); disp(sprintf('Q=%g at %g MHz',Q,f/1e6)); disp(sprintf('Self Resonant Freq=%g MHz',SRF/1e6)); disp(sprintf('Length=%g inches',len_out/0.0254)); disp(sprintf('Fill=%g',fill_out)); disp(sprintf('Lmax=%g nH',Lmax*1e9));
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