PortName 1 "Port name parameter for sweep"
f0 30[GHz] Frequency
lda0 c_const/f0 "Wavelength, free space"
L0 250[nH/m] "Microstrip line inductance"
C0 100[pF/m] "Microstrip line capacitance"
Z0 sqrt(L0/C0) "Characteristic impedance"
lda0_t 1/(f0*sqrt(L0*C0)) "Wavelength, transmission line"
ul lda0_t/4 "Unit length, quarter-wave"
Z1 Z0/sqrt(2) "Characteristic impedance for branch-lines"
z1 Z1/Z0 "Normalized impedance for branch-lines"
array_d 0.48*lda0 "Distance between array elements"