A study of lossy transmission lines

Under the assumption of quasi-transverse electric and magnetic (quasi-TEM) mode of propagation, the transmission characteristics of a thin film microstrip line have been studied. Several numerical programs were employed to calculate the frequency dependent electrical parameters of the microstrip line, and to carry out the transient simulation in the thesis. Based on the simulation results, the relations of pulse distortion to the signal frequency content and the length of line have been investigated. Several transmission characteristics, such as attenuation and dispersion have been paid more attention, and their dependences on the frequency dependent electrical parameters have also been studied. Furthermore, a designing rule for the geometry of thin film microstrip lines is drawn, and a general conclusion is made concerning the effect of conductor losses on thin film microstrip line parameter and the things which should be considered in the design