********************************************************** * * * Microstripline Calculator *R( * *2 * written by Bill VanRemmen, KA2WFJ *< * *F * for the University of Rochester Amateur Radio Club *VP * *Z * K2ZWI *_ * *b **********************************************************#c )d/i5lyn"This program finds the appropriate width of a microstripline"x"of a given impedance when etched on PC board material.""********************************************************************************"K"Please enter the following quantities..."Q"Desired impedance of microstripline: ";Z"Thickness of substrate : ";D"Dielectric constant of substrate : ";ER&A((Z<)((ER)))(((ER)(ER))(k~(Ga}ER)))IB(yOw!I)(Z(ER))hW1(D(A))((A))W2(D(B(B)((ER)((B)G((ER)))(ER)))Ow!IWW2 (W1D) WW1 (W2D) WW2"Trace Width = ";W?"Velocity Factor = ";d((ER));" %"E""********************************************************************************",6"Do another? "@A$J A$"" @T (A$"N") (A$"n")  : dQ "Which geometry of microstripline would you like calculations for?"W"1: o (wire over ground plane)"" ___________________":$"2: _"." ___________________ (PC board trace over ground plane)"8:,="3: Quit."5BA$aL (A$"1")(A$"2") (A$"3") B}V (A$) ,d,::"This routine calculates the wire diameter to produce a""given impedance microstripline when the wire is over " "a ground plane."t:"********************************************************************************"z "Please enter the following quantities...":"Desired impedance ";Z "Distance from center of wire to ground plane ";HR*"Dielectric constant of substrate ";ERZ4:t>D(H)((ZER)<)H"Diameter of wire = ";DR"Velocity factor = ";((ER))d;"%"\:"********************************************************************************"f:p"Do another? "CzA$U A$"" z| (A$"N") (A$"n")  : "Program ended normally."