Abstract: The low crosstalk characteristics of microshield lines are investigated through mixed spectral domain approach. The formula and numerical results are presented. And the results are compared with those of microstrip lines. The analysis has revealed that microshield lines possess much lower coupling coefficients than traditional transmission lines. So microshield line structure is believed to be quite useful for realizing high density MMIC.

Key words: crosstalk interference, microshield line, mixed spectral domain approach, MMIC