Title :
Highly accurate quasi-static modeling of microstrip lines over lossy substrates
Author :
Tuncer, Ernre ; Neikirk, Dean P.
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX, USA
Abstract :
A highly accurate quasi-static model of a microstrip over a semiconductor layer has been developed. The model agrees with full-wave calculations in all three modes of propagation (skin-effect, slow-wave, and dielectric quasi-TEM), for both the attenuation constant alpha and the propagation constant beta over a very wide range of dimension, substrate conductivity, and frequency. To achieve this level of agreement, a nonuniform cross-section, transverse resonance technique has been applied to find the series impedance per unit length of the microstrip transmission line.<>
Keywords :
skin effect; strip lines; waveguide theory; attenuation constant; dielectric quasi-TEM; lossy substrates; microstrip lines; nonuniform cross-section; propagation constant; quasi-static modeling; quasistatic model; semiconductor layer; series impedance; skin-effect; slow-wave; transverse resonance technique; Capacitance; Conductivity; Dielectric losses; Dielectric substrates; Frequency; Inductance; Magnetic fields; Microstrip; Semiconductivity; Transmission lines;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
