Microwave and millimeter-wave characterization of axially magnetized semiconductor disk

Magnetized ferrite resonators have so far been used to produce tunable micr owave filters and junction circulators up to around 40 GHz. Above this freq uency range, the nonreciprocal behavior of commercial ferrite decreases wit h increasing losses, whereas the losses in magnetized semiconductors become more acceptable. In this article, the gyrotropic characteristics of magnet ized semiconductor disk resonators are investigated using applied field/fre quency parameters. The nonlinear relationship between the existing tensor e ntry description and the field/frequency solution is established. The sensi tivity of the resonant frequency to geometrical and material properties of the semiconductor disk is observed and tabulated Finally, the S-parameters of a magnetized two-port semiconductor network are derived at microwave and millimeter-wave frequencies. The aim of this work is to provide simulated results for calibrating the semiconductor resonator essential for conductin g successful experiments on semiconductor junction devices.