In the analysis mode, the program calculates the resonant frequency and the unloaded Q-factor, and it estimates the bandwidth of various resonant modes of a dielectric resonator placed on an infinite ground plane. The design mode allows the user to quickly find the resonator dimensions that satisfy the input specifications (resonant frequency and mode, minimum bandwidth, dielectric constant, aspect ratios, etc.). Analysis and design of several resonator shapes, including hemispherical, cylindrical, cylindrical ring, and rectangular cross-section, are supported.-In the analysis mode, the program calculates the resonant frequency and the unloaded Q-factor, and it estimates the bandwidth of various resonant modes of a dielectric resonator placed on an infinite ground plane. The design mode allows the user to quickly find the resonator dimensions that satisfy the input specifications (resonant frequency and mode, minimum bandwidth, dielectric constant, aspect ratios, etc.). Analysis and design of several resonator shapes, including hemispherical, cylindrical, cylindrical ring, and rectangular cross-section, are supported.