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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Antispam question: What do MOONwalk and MOONdance have in common? Answer: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON [quote][i]Originally posted by om82[/i] [br]Hello there, I am trying to calculate the inductance of a simple model, but all I get is the (R+jL) looks like: Freq = 0.1 Row 0: -1.#IND-1.#INDj Freq = 1 Row 0: -1.#IND-1.#INDj Freq = 10 Row 0: -1.#IND-1.#INDj Freq = 100 Row 0: -1.#IND-1.#INDj Freq = 1000 Row 0: -1.#IND-1.#INDj Freq = 10000 Row 0: -1.#IND-1.#INDj Freq = 100000 Row 0: -1.#IND-1.#INDj Freq = 1e+006 Row 0: -1.#IND-1.#INDj Freq = 1e+007 Row 0: -1.#IND-1.#INDj Freq = 1e+008 Row 0: -1.#IND-1.#INDj Freq = 1e+009 Row 0: -1.#IND-1.#INDj Freq = 1e+010 Row 0: -1.#IND-1.#INDj Freq = 1e+011 Row 0: -1.#IND-1.#INDj Freq = 1e+012 Row 0: -1.#IND-1.#INDj What is the reason for the #IND... instead of values? Here is the model: * Inductivity PCB .units mm .default sigma=5.8e4 .default nhinc=3 .default nwinc=3 ******* Part A NB1 x=27 y=0 z=0 NB2 x=27 y=-14 z=0 eBseg1 NB1 NB2 w=20 h=0.3 ******* Part B NC1a x=15 y=-20 z=0 NC2a x=37 y=-20 z=0 eBseg2a NC1a NC2a w=10 h=0.3 ******* Part C NE1 x=25.5 y=-26 z=0 NE2 x=25.5 y=-49 z=0 eBseg4 NE1 NE2 w=22 h=0.3 ******* Contacts for Bondwire NBW1 x=25 y=-9 z=-0.1 NBW2 x=32 y=-21 z=-0.1 NBW3 x=32 y=-31 z=-0.1 NBW4 x=25 y=-42 z=-0.1 NBW1o x=25 y=-9 z=5 NBW2o x=32 y=-21 z=5 NBW3o x=32 y=-31 z=5 NBW4o x=25 y=-42 z=5 ******* Bondwire, vertical EBW1 NBW1 NBW1o w=0.4 h=0.4 EBW2 NBW2 NBW2o w=0.4 h=0.4 EBW3 NBW3 NBW3o w=0.4 h=0.4 EBW4 NBW4 NBW4o w=0.4 h=0.4 ******* Bondwire, horizontal EBW1w NBW1o NBW4o w=0.4 h=0.4 EBW2w NBW2o NBW3o w=0.4 h=0.4 .external NC1a NB1 .freq fmin=1e-1 fmax=1e18 ndec=1 .end The ports are at the upper end in the middle (NB1) and on the left hand side (NC1a). Does anyone see my mistake? I am new to this sort of simulation, would be nice if anyone helps. Thank you! [/quote]   Check here to include your profile signature.