emag_microstrip_picasso(h,er,z0,center_len,feed_len)
emag_microstrip_ferma(h,er,z0strip_wid,box_multiplier,draw_substrate)
| substrate relative permittivity
|-
! scope="row" | wstrip_wid
| real numeric
| meters
| 2
| strip width of microstrip line
|-
! scope="row" | box_multiplier