Two-Dimensional Analysis of Slow-Wave Propagation in Submicronic MESFET

An accurate two-dimensional analysis for the determination of depletion layer profile using Green´s functions in MESFET has been done. Then a small-signal approach to obtain the inter-electrode impedance is presented which permits the study of the slow-wave propagation in the structure. The results are compared with those of quasi-static approach. The Green´s function used in this work involves the boundary conditions on drain and source electrodes and is obtained by a conformal mapping. Thus the computation time is considerably reduced.