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width of Asymmetric Coupled Microstrip Lines

Question asked by guangl on Nov 19, 2006
Latest reply on Nov 20, 2006 by guangl
when I simulate the Asymmetric Coupled Microstrip Lines (MCN4A) in Genesys2004.7, I got error/warning messages which said my line width is less than metal thickness and width/height ratio is less than 0.01. However,in my schematic, the W1=100mil and W2=10mil, the substrate height is 59mil and metal thickness is 1.42mil.

Please refer to the attached file, could anyone figure out what the problem came from?