Millimeter-Wave and Terahertz Magnetic Field Tunable Avalanche Transit Time Sources

The dependence of static, high frequency and noise characteristics of Silicon based magnetic field tunable avalanche transit time (MAGTATT) sources operating at millimeter-wave atmospheric window frequencies (94, 140 and 220 GHz) and two different terahertz (THz) frequencies (0.3 and 0.5 THz) have been investigated in this paper. Comprehensive two-dimensional simulation models developed by the authors for evaluating static, large-signal and noise characteristics of MATATT diodes have been used for this purpose. The simulation results show that the above-mentioned magnetic field sensitivities are considerably reduced as the operating frequency increases.